GOST 23732-2011

Interstate standard

Water for concrete and mortars

Technical conditions

Water for Concrete and Mortars. Specifications.

Compare Text GOST 23732-2011 with GOST 23732-79 See link.
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____________________________________________________________________

ISS 91.100.30

Date of introduction 2012-10-01

Preface

Objectives, basic principles and the main order of work on interstate standardization GOST 1.0-92 "Interstate standardization system. Basic provisions" and MSN 1.01-01-2009 * "System of interstate regulatory documents in construction. Basic provisions "
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* The document is not given. Per for more information refer to the link

Information about standard

1 Developed by research, design and design and technological institution of concrete and reinforced concrete "NIIZB" - branch of FSUE "NIC" Construction "

2 Submitted by the Technical Committee on Standardization TC 465 "Construction"

3 adopted by the Interstate Scientific and Technical Commission for Standardization, Technical Registration and Evaluation of Compliance in Construction (Protocol No. 39 of December 8, 2011)

For the adoption of the standard voted:


Short name of the country on MK (ISO 3166) 004-97		Abbreviated name of the National Authority government controlled Construction
Azerbaijan		Gosstroy
		Ministry of Urban Planning
Kazakhstan		Agency for construction and housing and communal services
Kyrgyzstan.		Gosstroy
		Ministry of Construction and Regional Development
the Russian Federation		Department of Regulation of the City Planning Activity of the Ministry of Regional Development
Tajikistan		The Agency for Construction and Architecture under the Government
Uzbekistan		State Architectstroy

4 This standard complies with European Regional Standards EN 1008: 2002 * Mixing Water for Concrete. Specification For Suitability of Water, Including Water Recovered from Water, Including Water Recovered From Processes in The Concrete Industry, AS Mixing Water for Concrete (Concrete water. Requirements for the selection of samples, testing and evaluation of water suitability, including water returned from processes Concrete industry like concrete closures), EN 206-1: 2000 Concrete. Part 1: specification. Performance, Production and Conformity (concrete. Part 1. General technical requirements, performance characteristics, production and criteria of conformity) in terms of the classification of water types, including water returned from production, transportation and laying of concrete, as well as in terms of selection, tests and Water suitability estimates for concrete preparation.
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* Access to international and foreign documents mentioned here and then in the text, you can get by clicking on the link to the site http://shop.cntd.ru. - Note database manufacturer.

Translation from English (EN).

The degree of conformity is non-equivalent (NEQ)

5 Order of the Federal Agency for Technical Regulation and Metrology of May 31, 2012 N 97-ST Interstate Standard GOST 23732-2011 was enacted as a national standard Russian Federation From October 1, 2012

6 instead of GOST 23732-79

Information on the introduction of (termination) of this Standard is published in the National Standards Index.

Information about the changes to this standard is published in the index (catalog) "National Standards", and the text of the changes - in the information signs "National Standards". In case of revision or cancellation of this standard, relevant information will be published in the information indicator "National Standards"

1 area of \u200b\u200buse

This standard applies to water used for the preparation of concrete and mortar mixtures, as well as to care for hardening concrete and washing of aggregates (hereinafter - water for concrete and solutions), and establishes requirements for water quality for concrete and building solutions and methods for determining its fitness .

2 Regulatory references

This standard uses regulatory references to the following interstate standards:

GOST 310.3-76 cements. Methods for determining the normal luggage, lifting deadlines and uniformity of volume change

GOST 1770-74 Merry laboratory glassware. Cylinders, mins, flasks, test tubes. Technical conditions

GOST 2874-82 * Drinking water. Hygienic requirements and quality control
________________
GOST R 51232-98.

GOST 3351-74 Drinking water. Methods for determining taste, odor, chroma and turbidity

GOST 4245-72 Drinking water. Methods for determining the content of chlorides

GOST 4389-72 Drinking water. Methods for determining sulfate content

GOST 10060.0-95 concrete. Methods for determining frost resistance. General requirements

GOST 10060.1-95 concrete. Basic method of determining frost resistance

GOST 10060.2-95 concrete. Accelerated methods for determining frost resistance in repeated freezing and thawing

GOST 10180-90 concrete. Methods for determining the strength of control samples

GOST 12730.5-84 concrete. Methods for determining waterproof

GOST 18164-72 Drinking water. Method for determining the content of dry residue

GOST 18293-72 Drinking water. Methods for determining lead content, zinc, silver

GOST 18309-72 Drinking water. Method for determining the content of polyphosphates

GOST 18826-73 Drinking water. Methods for determining the content of nitrates

GOST 23268.6-78 WATER MINERAL Drinking Medical, Medical and Dining Rooms and Natural Dining Rooms. Sodium ion definition methods

GOST 23268.7-78 Water mineral drinking healing, therapeutic and dining and natural canteens. Methods for determining potassium ions

GOST 23268.12-78 Water Mineral Drinking Medical, Medical and Dining Rooms and Natural Dining Rooms. Method for determining permanganate oxidation

GOST 24481-80 * Drinking water. Sample selection
________________
* On the territory of the Russian Federation, the document does not work. GOST R 51593-2000 is valid, here and then in the text. - Note database manufacturer.

GOST 25336-82 dishes and equipment laboratory glass. Types, Main Sizes and Parameters

GOST 31383-2008 Protection of concrete and reinforced concrete structures from corrosion. Test methods

Note - When using this standard, it is advisable to check the action of reference standards in information system common use - on the official site Federal Agency Technical regulation and metrology on the Internet or on the annual information indicator "National Standards" published, which is published as of January 1 of the current year, and according to the relevant monthly information indexes published in the current year. If the reference standard is replaced (changed), then when using this standard should be guided by replacing (modified) standard. If the reference standard is canceled without replacement, the position in which the reference is given to it is applied in a portion that does not affect this link.

3 types of water

For the preparation of concrete and mortar mixtures, the water of the following types can be used for the preparation of solid concrete and washing of aggregates:

a) drinking water according to GOST 2874;

b) natural surface and groundwater;

c) technical water;

d) sea and saline water;

e) water after washing equipment for the preparation and transportation of concrete and mortar mixtures;

e) Combined water, which is a mixture of water from two or more sources indicated above.

4 Technical requirements

4.1 Water for concrete and mortars must comply with the requirements of this standard.

4.2 Water should not contain chemical compounds and impurities in quantities that can affect cement grapplation, hardening speed, strength, frost resistance and concrete waterproof, corrosion of reinforcement within the limits exceeding the rules specified in 4.6.

4.3 For the preparation of concrete and mortar mixtures, concrete care and the washing of aggregates are not allowed to use waste, swamp and peat water.


Purpose of water	Maximum allowable content, mg / l
	soluble salts	weigh spray particles
1 Water for the indion of the concrete mix in the manufacture of stressful reinforced concrete structures and the injected solution
2 Water for the postection of concrete mixture in the manufacture of concrete and reinforced concrete structures with unprinted reinforcement, incl. For water-type structures and zones of variable horizon of water massive structures, as well as construction plaster solutions and solutions for reinforced stone masonry
3 Water for the postection of concrete mix in the manufacture of concrete unarmed structures, to which the requirements for limiting the formation of saws, concrete concrete and reinforced concrete structures of underwater and internal areas of massive structures, as well as construction solutions for unarmed stone masonry
4 Water for washing of aggregates, including wet control sorting and cooling of aggregates
5 Water for watering worker seams during breaks in concreting, joints of the joints to be omnoralizing, and surfaces of water-supply structures, as well as water for pipe cooling of the concrete array
6 Water for watering the finished outer surfaces of concrete and reinforced concrete structures
7 Water for watering the outer surfaces of concrete structures (including the surfaces of water-supplying structures), if the appearance of oction, heaps are allowed on the surface
NOTE - Water for the preparation of concrete on the alumina and plasterland cement must comply with the requirements of this table.

4.5 The total content in the water of sodium and potassium ions in the composition of soluble salts should not exceed 1500 mg / l.

4.6 Water corresponding to the requirements shown in Table 1, the content of nitrates, sulphides, sugars, phosphates, lead and zinc in which does not exceed the values \u200b\u200bshown in Table 2, recognized as suitable if compared with the test results carried out on drinking water, timelines Cement setting is changed by no more than 25%, concrete strength through 7 and 28 days of normal-humid vellency, as well as frost resistance and waterproof of concrete is not reduced, and the reinforcement steel in the concrete is in a steady passive state.

Table 2 - Contents in water nitrates, sulphides, sugars, phosphates and zinc


Name of impurities	Maximum content, mg / l	Test method

Phosphates per
Nitrates per
Sulphides per
Lead based on
Zinc based on

4.7 It is allowed to use water if there is only traces (iris) oil products, oils and fats on the surface.

4.8 The hydrogen indicator of the water pH should be at least 4 and not more than 12.5.

4.9 Water oxidation must be no more than 15 mg / l.

4.10 It is allowed to use water with the intensity of the smell of no more than two points.

4.11 Water coloring should be ranging from colorless to yellowish with color not higher than 70 ° according to GOST 3351. If the requirements of technical aesthetics are presented to concrete, the water chromaticity should not exceed 30 °. It is allowed in some cases the use of water with the chromaticity of more than 70 °. At the same time, the suitability of water should be established by the test to determine the physico-technical properties of the concrete mixture and concrete specified in 4.2.

4.12 Water containing foaming surfactants is suitable for use with foam resistance of not more than 2 minutes. It is allowed to use water with foam resistance of 2 minutes and more, provided that the water availability is established by comparative tests to determine the physico-technical properties of the concrete mixture and concrete specified in 4.6.

4.13 In places of water intake (with primary quality control of water), the content of coarse impurities in water should not be more than 4% by volume.

4.14 Test requirements and methods for preliminary assessment Water quality for concrete and mortars are shown in Table 3.

Table 3 - requirements and test methods for preliminary water quality assessment


Name of the indicator	Demand	Test method
1 Availability of petroleum products, oils and fats	Only traces are allowed
2 Availability of surfactants	Foam resistance - no more than 2 minutes
3 Color	From colorless to yellowish
Four coarse impurities in water:
	See the application in	According to V.5 applications in
From other sources	No more than 4% by volume
5 Water smell:
After washing equipment for the preparation and transportation of concrete and mortar mixtures	A light smell of cement is allowed, and when the ash is used, the slope is a light sulfide sulfide.
From other sources	Only the smell of drinking water. No smell of hydrogen sulfide after adding hydrochloric acid.
6 Acidity
7 Oxidability	No more than 15 mg / l
8 The presence of humic substances	After adding NaOH, the color of water should be weakly yellowish brown or lighter

5 Test Sampling

5.1 The volume of water samples taken for testing must be at least 5 liters.

5.2 Water sample must be characteristic of the planned source of water consumption. Samples of water from a source with a non-permanent chemical composition of impurities are selected taking into account seasonal, daily and other changes in impurities.

5.3 Selection, storage and transportation of water samples - in accordance with GOST 24481.

5.4 Selected water test must be tested no later than two weeks after its selection.

6 Test Methods

6.1 Water tests are carried out at least once a year, as well as when the deviations of the properties of water are detected from the requirements specified in Section 4, and when changing the source of water consumption. Tests are carried out according to the scheme shown in Appendix A.

6.2 Drinking water corresponding to the requirements of GOST 2874 is applied by any purpose without additional analyzes.

6.3 At the first stage of tests, inspection of water in a glass transparent measuring cylinder with a capacity of 100 ml according to GOST 1770 to determine the smell, colors, oil, fats, emulsions, solid and foaming substances.

6.3.1 The smell and chromaticity of water are determined according to GOST 3351.

6.3.2 The presence of traces of petroleum products, oils, fats and emulsions determine visually when examining the surface of the water.

6.3.3 The content of coarse impurities is determined by measuring the volume of the precipitate formed in a standing 24 hours after sampling of the test of water in a glass measuring cylinder with a capacity of 100 ml according to GOST 1770. The content of coarse particles,% by volume, is determined by the formula

where - the volume of coarse particles, ml;

- coefficient that takes into account the density of the packaging of coarse particles in the sediment;

- volume of water in a measuring cylinder, ml.

6.3.4 The possibility of foaming is checked for 1 min by shaking the water in a half-dimensional cylinder with a capacity of 100 ml according to GOST 1770 on laboratory shakes with a shaking frequency from 1500 to 2400 rpm and determining foam stability in minutes.

6.4 The content in water chloride ions () is determined by GOST 4245, sulfate ions () - according to GOST 4389, soluble salts - according to GOST 18164, zinc ions and lead ions () - according to GOST 18293, phosphate ions () - according to GOST 18309, nitrate ions () - according to GOST 18826, sodium ions () - according to GOST 23268.6, potassium ions () - according to GOST 23268.7.

6.5 The content of sulfide ions () and sugar in water is determined by methods for measuring concentrations in accordance with.

6.6 The hydrogen pH is determined by the potentiometric method using pH meters of any grades with glass electrodes with a pH range from 0 to 14 and measurement error not exceeding ± 0.1. To determine from 10 to 50 ml of water into a glass glass with a capacity of 50 to 100 ml according to GOST 25336. The definition of the pH is performed according to the instructions for the device.

6.7 To determine the content of suspended particles, the water sample with a volume of 0.5 to 1 liters is shaken for 20 minutes and filtered through a pre-weighted tigel with a porous bottom with a pore size of 5 to 10 microns. The crucible curtain is dried to a constant mass in the drying cabinet at a temperature (105 ± 5) ° C until the difference between the results of two consecutive weighing will be no more than 0.1% of the weight of the hitch.

Content of suspended particles, mg / l, calculated by the formula

where is a mass of a trigger with a dried sediment, r;

- Mass of a crucible, g;

- volume of water selected for analysis, ml.

6.8 Water oxidation is determined by GOST 23268.12.

6.9 In assessing the content of humic substances, 5 ml of the sample is placed in a test tube at a temperature of from 15 ° C to 25 ° C, 5 ml of a 3% sodium hydroxide solution is added, the tube is shaken and left for 1 hour, after which the color of water is determined.

6.10 Water matches with requirements 4.6, 4.11, 4.12 Determine comparative tests of cement and concrete prepared on the subject and drinking water. The grasp of the cement test is determined according to GOST 310.3, concrete strength - according to GOST 10180, frost resistance - according to GOST 10060.0, GOST 10060.1, GOST 10060.2, water resistance - according to GOST 12730.5, corrosion state of reinforcement - according to GOST 31383.

7 Test Act

The act of testing water must contain:

a) description of the type and source of water;

b) title settlement sampling;

c) time and date of sampling;

d) the name of the testing laboratory, its address and telephone, as well as the surname of those responsible for the test of persons;

e) test date;

e) test results and their assessment when compared with the requirements of this standard;

Appendix A (recommended). Water Test Scheme for Concrete and Construction Solutions

The water test diagram for concrete and solutions is shown in Figure A.1.

Figure A.1 (sheet 1)

Figure A.1 (Sheet 2)

Appendix B (Reference). The content of soluble salts and ions in the water of the seas and oceans

Appendix B.
(Reference)

Table B.1 - The content of soluble salts and ions in the water of the seas and oceans


Name
	soluble salts
Baltic Sea Bulips
Azov Sea
Aral Sea
Caspian Sea
Black Sea
White Sea
Oceans and open seas

Appendix B (mandatory). Water requirements after washing equipment for the preparation and transportation of concrete and mortar mixtures

Appendix B.
(mandatory)

B.1 Scope

Water after washing equipment for the preparation and transportation of concrete and mortar mixtures (hereinafter - regenerated water) is used to prepare concrete and mortar mixtures on their own or in combination with another water type.

B.2 Terms and Definitions

B.2.1 regenerated concrete production water: Water including:

- water from residual concrete;

- water after washing the mixing containers of stationary faucets, concrete mixers and concrete pumps;

- technical water that comes after individual production processes (from the milling machine, after grinding and water cutting of hardened concrete, etc.);

- Water that comes during the production of concrete mix.

Regenerated water can be withdrawn from:

- reservoir with special devices, with which solids can be homogeneously distributed in regenerated water;

- Sustainer or similar installations, if the regenerated water remains long enough in the sump, and the solids can be deposited in it.

Note - residual water from the regeneration installations of concrete production contains variable amounts of coarse particles, the average size of which is less than 0.25 mm.

B.2.2 combined water: A mixture of regenerated water of concrete production and water from another source.

B.2.3. residual concrete: Freshly prepared concrete mix that did not fit or entered for use after cleaning concrete mixers at the manufacturer. The residual concrete also includes a freshly prepared concrete mixture that enters for use after cleaning the concrete mixers and concrete pumps.

The residual solution can be considered as residual concrete.

B.3 Restrictions on the use of regenerated water

The regenerated water of concrete production or combined water can be used as the indulgence water in the production of concrete, reinforced concrete, pre-stressed concrete if the following requirements are followed:

- the additional mass of solids in concrete when applying the regenerated water of concrete production should be less than 1% of the total mass of the aggregate mixture;

- The possible effect of the use of regenerated water should be indicated in special cases, for example, in the production of "facial" concrete, precomprooped reinforced concrete, cellular concrete, concrete operating in aggressive conditions ambient, etc.;

- The mass of used regenerated water in production should be maximally possible evenly distributed during the day.

Note - In special cases, the mass of solids can be more than 1%, if confirmed that all the required caption characteristics can be provided.

V.4 Requirements for regenerated water

V.4.1 General requirements

Regenerated or combined water for concrete must comply with the requirements of Section 4 and additionally the following requirements.

V.4.2 Storage

The regenerated water in the reservoir should be carefully protected from contamination.

V.4.3 Distribution of solids in regenerated water

In the event that the density of regenerated water exceeds 1.01 kg / l, the uniform distribution of solids in regenerated water must be ensured by the activities intended for this.

At the density of the regenerated water, less than 1.01 kg / l mass of solids is allowed not to be considered.


Density of regenerated water, kg / l		Water volume, l / l

Note - when calculating solids content in regenerated water, the density of the grain of the solid is taken equal to 2.1 kg / l. If the solids content is higher than indicated in Table B.1, then it can be calculated by the formula

where - the density of regenerated water, kg / l;

- density of grain solids, kg / l.

V.5 Control

V.5.1 Density

The density of regenerated or combined water is determined in homogenized samples selected from the water tank.

The density of the regenerated water used for the production of concrete must be determined daily at the time of the expected highest concentration of solids, if there are no other methods in the manufacturer's quality control or technological regulations for controlling concentration.

To control the density of regenerated or combined water, automatic devices are allowed. In this case, the method applied and its calibration must be specified in the quality or technological regulation manual ( technological map) Manufacturer.

V.5.2 Fitness

The suitability of regenerated or combined water is determined in accordance with section 4.

Bibliography

Electronic document text
prepared Codex JSC and drilled by:
official edition
M.: Standinform, 2012

Commissioned by order of the Federal Agency for Technical Regulation and Metrology of May 31, 2012 N 97-st

Interstate Standard GOST 23732-2011

"Water for concrete and mortars. Technical conditions"

Water for Concrete and Mortars. Specifications.

Instead of GOST 23732-79

1 area of \u200b\u200buse

2 Regulatory references

This standard uses regulatory references to the following interstate standards:

GOST 310.3-76 cements. Methods for determining the normal luggage, lifting deadlines and uniformity of volume change

GOST 1770-74 Merry laboratory glassware. Cylinders, mins, flasks, test tubes. Technical conditions

GOST 2874-82 Drinking water. Hygienic requirements and quality control

GOST 3351-74 Drinking water. Methods for determining taste, odor, chroma and turbidity

GOST 4245-72 Drinking water. Methods for determining the content of chlorides

GOST 4389-72 Drinking water. Methods for determining sulfate content

GOST 10060.0-95 concrete. Methods for determining frost resistance. General requirements

GOST 10060.1-95 concrete. Basic method of determining frost resistance

GOST 10060.2-95 concrete. Accelerated methods for determining frost resistance in repeated freezing and thawing

GOST 10180-90 concrete. Methods for determining the strength of control samples

GOST 12730.5-84 concrete. Methods for determining waterproof

GOST 18164-72 Drinking water. Method for determining the content of dry residue

GOST 18293-72 Drinking water. Methods for determining lead content, zinc, silver

GOST 18309-72 Drinking water. Method for determining the content of polyphosphates

GOST 18826-73 Drinking water. Methods for determining the content of nitrates

GOST 23268.6-78 WATER MINERAL Drinking Medical, Medical and Dining Rooms and Natural Dining Rooms. Sodium ion definition methods

GOST 23268.7-78 Water mineral drinking healing, therapeutic and dining and natural canteens. Methods for determining potassium ions

GOST 23268.12-78 Water Mineral Drinking Medical, Medical and Dining Rooms and Natural Dining Rooms. Method for determining permanganate oxidation

GOST 24481-80 Drinking water. Sample selection

GOST 25336-82 dishes and equipment laboratory glass. Types, Main Sizes and Parameters

GOST 31383-2008 Protection of concrete and reinforced concrete structures from corrosion. Test methods

Note - When using this standard, it is advisable to verify the action of reference standards in the public information system - on the official website of the Federal Agency for Technical Regulation and Metrology on the Internet or on the National Standards Annually published information indicator, which is published as of January 1 of the current year , and according to the corresponding monthly information indicators published in the current year. If the reference standard is replaced (changed), then when using this standard should be guided by replacing (modified) standard. If the reference standard is canceled without replacement, the position in which the reference is given to it is applied in a portion that does not affect this link.

3 types of water

For the preparation of concrete and mortar mixtures, the water of the following types can be used for the preparation of solid concrete and washing of aggregates:

a) drinking water according to GOST 2874;

b) natural surface and groundwater;

c) technical water;

d) sea and saline water;

e) water after washing equipment for the preparation and transportation of concrete and mortar mixtures;

e) Combined water, which is a mixture of water from two or more sources indicated above.

4 Technical requirements

4.1 Water for concrete and mortars must comply with the requirements of this standard.

4.3 For the preparation of concrete and mortar mixtures, concrete care and the washing of aggregates are not allowed to use waste, swamp and peat water.

Table 1 - Water content of soluble salts, sulfates, chlorides and suspended particles

Purpose of water	Maximum allowable content, mg / l
Purpose of water	soluble salts	suspended particles
1 Water for the indion of the concrete mix in the manufacture of stressful reinforced concrete structures and the injected solution
2 Water for the postection of concrete mixture in the manufacture of concrete and reinforced concrete structures with unprinted reinforcement, incl. For water-type structures and zones of variable horizon of water massive structures, as well as construction plaster solutions and solutions for reinforced stone masonry
3 Water for the postection of concrete mix in the manufacture of concrete unarmed structures, to which the requirements for limiting the formation of saws, concrete concrete and reinforced concrete structures of underwater and internal areas of massive structures, as well as construction solutions for unarmed stone masonry
4 Water for washing of aggregates, including wet control sorting and cooling of aggregates
5 Water for watering worker seams during breaks in concreting, joints of the joints to be omnoralizing, and surfaces of water-supply structures, as well as water for pipe cooling of the concrete array
6 Water for watering the finished outer surfaces of concrete and reinforced concrete structures
7 Water for watering the outer surfaces of concrete structures (including the surfaces of water-supplying structures), if the appearance of oction, heaps are allowed on the surface
NOTE - Water for the preparation of concrete on the alumina and plasterland cement must comply with the requirements of this table.

Table 2 - Contents in water nitrates, sulphides, coach, phosphates and zinc

Name of impurities	Maximum content, mg / l	Test method

Phosphates per P 2 O 5
Nitrates per
Sulphides per S 2-
Lead per PB 2+
Zinc based on Zn 2+

4.7 It is allowed to use water if there is only traces (iris) oil products, oils and fats on the surface.

4.8 The hydrogen indicator of the water pH should be at least 4 and not more than 12, 5.

4.9 Water oxidation must be no more than 15 mg / l.

4.10 It is allowed to use water with the intensity of the smell of no more than two points.

4.11 Water color must be between colorless to yellowish with chroma not higher than 70 ° according to GOST 3351. If the requirements of technical aesthetics are presented to concrete, the color of the water should not exceed 30 °. It is allowed in some cases the use of water with the chromaticity of more than 70 °. At the same time, the suitability of water should be established by the test to determine the physico-technical properties of the concrete mixture and concrete specified in 4.2.

4.13 In places of water intake (with primary quality control of water), the content of coarse impurities in water should not be more than 4% by volume.

4.14 Test requirements and methods for preliminary assessment of water quality for concrete and mortars are shown in Table 3.

Table 3 - requirements and test methods for preliminary water quality assessment

Name of the indicator	Demand	Test method
1 Availability of petroleum products, oils and fats	Only traces are allowed
2 Availability of surfactants	Foam resistance - no more than 2 minutes
3 Color	From colorless to yellowish
Four coarse impurities in water:
Four coarse impurities in water:	See the application in	According to V.5 applications in
From other sources	No more than 4% by volume
5 Water smell: After washing equipment for the preparation and transportation of concrete and mortar mixtures	A light smell of cement is allowed, and when the ash is used, the slope is a light sulfide sulfide.
From other sources	Only the smell of drinking water. No smell of hydrogen sulfide after adding hydrochloric acid.
6 Acidity	12, 5\u003e pH\u003e 4
7 Oxidability	No more than 15 mg / l
8 The presence of humic substances	After adding NaOH, the color of water should be weakly yellowish brown or lighter

5 Test Sampling

5.1 The volume of water samples taken for testing must be at least 5 liters.

5.3 Selection, storage and transportation of water samples - in accordance with GOST 24481.

5.4 Selected water test must be tested no later than two weeks after its selection.

6 Test Methods

6.2 Drinking water corresponding to the requirements of GOST 2874 is applied by any purpose without additional analyzes.

6.3.1 The smell and chromaticity of water are determined according to GOST 3351.

6.3.2 The presence of traces of petroleum products, oils, fats and emulsions determine visually when examining the surface of the water.

where V r gr - the volume of coarse particles, ml;

1, 25 - coefficient, taking into account the density of the packaging of coarse particles in the sediment;

V is the volume of water in the measuring cylinder, ml.

6.4 The content in water chloride ions (CL -) is determined by GOST 4245, sulfate ions () - according to GOST 4389, soluble salts - according to GOST 18164, zinc ions (Zn 2+) and lead ions (PB 2+) - GOST 18293, phosphate ions () - according to GOST 18309, nitrate ions () - according to GOST 18826, sodium ions (Na +) - according to GOST 23268.6, potassium ions (K +) - according to GOST 23268.7.

6.6 The hydrogen indicator of pH is determined by the potentiometric method using pH meters of any brands with glass electrodes with a pH range from 0 to 14 and measurement error not exceeding ± 0, 1. To determine from 10 to 50 ml of water in a glass glass with a capacity of 50 Up to 100 ml according to GOST 25336. The definition of the pH is performed according to the instructions for the device.

6.7 To determine the content of suspended particles, the water sample with a volume of 0, 5 to 1 liters is shaken for 20 minutes and filtered through a pre-weighed crucible with a porous bottom from 5 to 10 microns. The crucible cage is dried to a constant mass in a drying closet at a temperature (105 ± 5) ° C until the difference between the results of two consecutive weighing will be no more than 0, 1% weight of the hitch.

where M 1 is a mass of a trigger with a dried precipitate, r;

m 2 - weight of crucible, r;

V is the volume of water selected for analysis, ml.

6.8 Water oxidation is determined by GOST 23268.12.

7 Test Act

The act of testing water must contain:

a) description of the type and source of water;

b) the name of the settlement of the sampling;

c) time and date of sampling;

d) the name of the testing laboratory, its address and telephone, as well as the surname of those responsible for the test of persons;

e) test date;

e) test results and their assessment when compared with the requirements of this standard;

Water Test Scheme for Concrete and Construction Solutions

The water test diagram for concrete and solutions is shown in Figure A.1.

Appendix B.
(Reference)

The content of soluble salts and ions in the water of the seas and oceans

Table B.1 - The content of soluble salts and ions in the water of the seas and oceans

Name
Name	soluble salts
Baltic Sea Bulips
Azov Sea
Aral Sea
Caspian Sea
Black Sea
White Sea
Oceans and open seas

Appendix B.
(mandatory)

Requirements
To water after washing equipment for the preparation and transportation of concrete and mortar mixtures

B.1 Scope

Water after washing equipment for the preparation and transportation of concrete and mortar mixtures (hereinafter - regenerated water) is used to prepare concrete and mortar mixtures on their own or in combination with another water type.

B.2 Terms and Definitions

B.2.1 Regenerated concrete production water: water including:

Water from residual concrete;

Water after washing the mixing containers of stationary mixers, concrete mixers and concrete pumps;

Technical water that comes after individual production processes (from the milling machine, after grinding and water cutting of hardened concrete, etc.);

Water that comes during the production of concrete mix.

Regenerated water can be withdrawn from:

Pond with special devices, with which solids can be homogeneously distributed in regenerated water;

Sustainer or similar installations, if regenerated water remains long enough in the sump, while solids that are in it can be deposited.

Note - Residual water from the regeneration installations of concrete production contains variable amounts of coarse particles, the average size of which is less than 0, 25 mm.

B.2.2 Combined water: a mixture of regenerated water of concrete production and water from another source.

B.2.3 Residual concrete: freshly prepared concrete mix that did not fit or entered for use after cleaning concrete mixers at the manufacturer's enterprise. The residual concrete also includes a freshly prepared concrete mixture that enters for use after cleaning the concrete mixers and concrete pumps.

The residual solution can be considered as residual concrete.

B.3 Restrictions on the use of regenerated water

The regenerated water of concrete production or combined water can be used as the indulgence water in the production of concrete, reinforced concrete, pre-stressed concrete if the following requirements are followed:

Additional mass of solids in concrete when applying the regenerated water of concrete production should be less than 1% of the total mass of the aggregate mixture;

The possible effect of the use of regenerated water should be indicated in special cases, for example, in the production of "facial" concrete, precompanied reinforced concrete, cellular concrete, concrete operating in aggressive environmental conditions, etc.;

The mass of used regenerated water during production should be easily distributed as much as possible during the day.

Note - In special cases, the mass of solids can be more than 1%, if confirmed that all the required caption characteristics can be provided.

V.4 Requirements for regenerated water

V.4.1 General requirements

Regenerated or combined water for concrete must comply with the requirements of Section 4 and additionally the following requirements.

V.4.2 Storage

The regenerated water in the reservoir should be carefully protected from contamination.

V.4.3 Distribution of solids in regenerated water

In case the density of regenerated water exceeds 1, 01 kg / l, the uniform distribution of solids in regenerated water must be ensured by the measures intended for this.

At the density of regenerated water less than 1, 01 kg / l, the mass of solids is allowed not to be taken into account.

V.4.4 The content of solids in regenerated water

Table B.1 - The content of solids in regenerated water

Density of regenerated water, kg / l		Water volume, l / l

Note - When calculating the content of solids in regenerated water, the density of the grain of the solid is taken equal to 2, 1 kg / l. If the solids content of the solids W is higher than indicated in Table B.1, then it can be calculated by the formula

where ρ is the density of regenerated water, kg / l;

ρ s is the density of grain solids, kg / l.

V.5 Control

V.5.1 Density

The density of regenerated or combined water is determined in homogenized samples selected from the water tank.

The density of the regenerated water used for the production of concrete must be determined daily at the time of the expected highest concentration of solids, if there are no other methods in the manufacturer's quality control or technological regulations for controlling concentration.

To control the density of regenerated or combined water, automatic devices are allowed. In this case, the applied method and its calibration must be indicated in the quality or technological regulations (technological card) of the manufacturer.

V.5.2 Fitness

The suitability of regenerated or combined water is determined in accordance with section 4.

Bibliography

Sav. Unified methods of water quality research. Part 1. "Methods of chemical analysis of water." T. 1. - M., 1977

Interstate Council for Standardization, Metrology and Certification

INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION

Interstate

STANDARD

Water for concrete and mortars

Technical conditions

EN 1008: 2002, NEQ)

(EN 206-1: 2000, NEQ)

Official edition

Standards Norm 2012.

Preface

Objectives, basic principles and the main order of work on interstate standardization are established by GOST 1.0-92 "Interstate standardization system. Basic provisions "and MSN 1.01-01-2009" The system of interstate regulatory documents in construction. Basic provisions "

Information about standard

1 Developed by the research, design and design and technological institution of concrete and reinforced concrete "NIIZB" - branch of FSUE "NIC" Construction "

2 Submitted by the Technical Committee on Standardization TC 465 "Construction"

3 adopted by the Interstate Scientific and Technical Commission for Standardization, Technical Registration and Evaluation of Conformity in Construction (Protocol No. 39 of December 8, 2011)

Short name of the country according to MK (ISO 3166) 004-97	Country code on MK (ISO 3166) 004-97	Abbreviated name of the National Body of State Construction Management
Azerbaijan		G OSTRY
		Ministry of Urban Planning
Kazakhstan		Agency for construction and housing and communal services
Kyrgyzstan.		G OSTRY
		Ministry of Construction and Regional Development
the Russian Federation		Department of Regulation of the City Planning Activity of the Ministry of Regional Development
Tajikistan		The Agency for Construction and Architecture under the Government
Uzbekistan		G Orskhitstroy

4 This standard complies with European Regional Standards EN 1008: 2002 Mixing Water for Concrete. Specification For Suitability of Water, Including Water Recovered from Water, Including Water Recovered From Processes in The Concrete Industry, AS Mixing Water for Concrete (Concrete water. Requirements for the selection of samples, testing and evaluation of water suitability, including water returned from processes Concrete industry like concrete closures), EN 206-1: 2000 Concrete. Part 1: specification. Performance, Production and Conformity (concrete. Part 1. General technical requirements, performance characteristics, production and criteria of conformity) in terms of the classification of water types, including water returned from production, transportation and laying of concrete, as well as in terms of selection, tests and Water suitability estimates for concrete preparation.

Translation from English (EP).

The degree of conformity is non-equivalent (NEQ)

5 by the order of the Federal Agency for Technical Regulation and Metrology of May 31, 2012 No. 97-stage Interstate Standard GOST 23732-2011 was introduced as a national standard of the Russian Federation from October 1, 2012

6 instead of GOST 23732-79

Information on the introduction of (termination) of this Standard is published in the National Standards Index.

Information about the changes to this standard is published in the index (catalog) "National Standards", and the text of the changes - in the information signs "National Standards". In case of revision or cancellation of this standard, the relevant information will be published in the information indicator "National Standards"

In Russian federation real Standard Could not be fully or partially reproduced, replicated and distributed as an official publication without the permission of the Federal Agency for Technical Regulation and Metrology

1 area of \u200b\u200buse............................................... ....one

3 types of water ............................................... .......... 2.

4 Technical requirements ............................................... .2.

5 Sampling for testing ..................................................... ..four

6 Test Methods ............................................... .....four

7 Act of tests ............................................... ........five

Appendix B (reference) The content of soluble salts and ions in the water of the seas and oceans ..... 8

Appendix B (mandatory) Water requirements after washing equipment for cooking

and transportation of concrete and mortar mixtures ..................... 9

Bibliography................................................. .......eleven

Interstate standard

Water for concrete and building solutions Technical conditions

Water for Concrete and Mortars. Specifications.

Date of administration - 2012-10-01

1 area of \u200b\u200buse

This standard uses regulatory references to the following interstate standards:

GOST 310.3-76 cements. Methods for determining the normal luggage, lifting deadlines and uniformity of volume change

GOST 1770-74 Merry laboratory glassware. Cylinders, mins, flasks, test tubes. Technical conditions

GOST 2874-82 Drinking water. Hygienic requirements and quality control GOST 3351-74 Drinking water. Methods for determining taste, smell, chromaticity and turbidity GOST 4245-72 Drinking water. Methods for determining the content of chlorides GOST 4389-72 Drinking water. Methods for determining the sulfate content of GOST 10060.0-95 concrete. Methods for determining frost resistance. General requirements GOST 10060.1-95 concretes. Basic method of determining frost resistance

GOST 10060.2-95 concrete. Accelerated methods for determining frost resistance in repeated freezing and thawing

GOST 10180-90 concrete. Methods for determining the strength of the control samples of GOST 12730.5-84 concrete. Methods for determining waterproof GOST 18164-72 Drinking water. Method for determining the content of dry residue

Drinking water. Methods for determining lead content, zinc, silver drinking water. Method for determining polyphosphates water drinking water. Methods for determining the content of nitrates of GOST 23268.6-78 water mineral drinking healing, therapeutic and dining and natural canteens. Sodium ion definition methods

GOST 23268.7-78 Water mineral drinking healing, therapeutic and dining and natural canteens. Methods for determining potassium ions

GOST23268.12-78 Water Mineral Drinking Medical, Medical and Dining and Natural Cutlery. Method for determining permanganate oxidation GOST 24481-80 Drinking water. Sample selection

GOST 25336-82 dishes and equipment laboratory glass. Types, Main Sizes and Parameters

GOST 18293-72 GOST 18309-72 GOST 18826-73

Official edition

GOST 31383-2008 Protection of concrete and reinforced concrete structures from corrosion. Test methods

3 types of water

For the preparation of concrete and mortar mixtures, the water of the following types can be used for the preparation of solid concrete and washing of aggregates:

a) drinking water according to GOST 2874;

b) natural surface and groundwater;

c) technical water;

d) sea and saline water;

e) water after washing equipment for the preparation and transportation of concrete and mortar mixtures;

e) Combined water, which is a mixture of water from two or more sources indicated above.

4 Technical requirements

4.1 Water for concrete and mortars must comply with the requirements of this standard.

4.3 For the preparation of concrete and mortar mixtures, concrete care and the washing of aggregates are not allowed to use waste, swamp and peat water.

Table 1 - Water content of soluble salts, sulfates, chlorides and suspended particles

Purpose of water
Purpose of water	soluble	weighted
1 Water for the indion of the concrete mix in the manufacture of stressful reinforced concrete structures and the injected solution
2 Water for the shock of concrete mixture in the manufacture of concrete and reinforced concrete structures with unloading-mine reinforcement, including for water-based structures and zones of variable horizon of water massive arms, as well as construction plaster solutions and solutions for reinforced stone masonry
3 Water for the postection of concrete mix in the manufacture of concrete unarmed structures, to which the requirements for limiting the formation of saws, concrete concrete and reinforced concrete structures of underwater and internal areas of massive structures, as well as construction solutions for unarmed stone masonry

End of Table 1.

Purpose of water	Maximum allowable content, mg / l
Purpose of water	soluble	weighted
4 Water for washing of aggregates, including wet control sorting and cooling of aggregates
5 Water for watering the workshops during breaks in concreting, joints of the joints to be omonolism, and surfaces of water-supply structures, as well as water for pipe cooling of the concrete array
6 Water for watering the finished outer surfaces of concrete and reinforced concrete structures
7 Water for watering the outer surfaces of concrete structures (including the surfaces of water-supplying structures), if the appearance of oction, heaps are allowed on the surface

NOTE - Water for the preparation of concrete on the alumina and plasterland cement must comply with the requirements of this table.

Table 2 - Contents in water nitrates, sulphides, sugars, phosphates and zinc

4.7 It is allowed to use water if there is only traces (iris) oil products, oils and fats on the surface.

4.8 The pH hydrogen indicator should be at least 4 and not more than 12.5.

4.9 Water oxidation must be no more than 15 mg / l.

4.10 It is allowed to use water with the intensity of the smell of no more than two points.

4.13 In places of water intake (with primary quality control of water), the content of coarse impurities in water should not be more than 4% by volume.

4.14 Test requirements and methods for preliminary assessment of water quality for concrete and mortars are shown in Table 3.

Table 3 - requirements and test methods for preliminary water quality assessment

Name of the indicator	Demand	Test method
1 Availability of petroleum products, oils and fats	Only traces are allowed
2 Availability of surfactants	Foam resistance - no more than 2 minutes
3 Color	From colorless to yellowish
Four coarse impurities in water:	See visit B.	According to V.5 applications in
From other sources	No more than 4% by volume
5 Water smell: After washing equipment for the preparation and transportation of concrete and mortar mixtures	A lightweight cement smell is allowed, and when the ash is used, it is easy to smell of hydrogen sulfide.
From other sources	Only the smell of drinking water. No smell of hydrogen sulfide after adding hydrochloric acid.
6 Acidity	12.5\u003e PH\u003e 4
7 Oxidability	No more than 15 mg / l
8 The presence of humic substances	After adding NaOH, the color of water should be weakly yellowish brown or lighter

5 Test Sampling

5.1 The volume of water samples taken for testing must be at least 5 liters.

5.3 Selection, storage and transportation of water samples - in accordance with GOST 24481.

5.4 Selected water test must be tested no later than two weeks after its selection.

6 Test Methods

6.2 Drinking water corresponding to the requirements of GOST 2874 is applied by any purpose without additional analyzes.

6.3.1 Smells The color of water is determined by GOST3351.

6.3.2 The presence of traces of petroleum products, oils, fats and emulsions determine visually when examining the surface of the water.

^ ■ h 100 1,25V

where V h is the volume of coarse particles, ml;

1.25 - coefficient, taking into account the density of the packaging of coarse particles in the sediment;

V- water volume in a measuring cylinder, ml.

6.3.4 The possibility of foaming is checked for 1 min by shaking the water in a 100 ml with half-dimensional cylinder with a capacity of 100 ml according to GOST 1770 on laboratory shakes with a shaking frequency from 1500 to 2400 rpm and determining foam stability in minutes.

6.6 The pH hydrogen indicator is determined by the potentiometric method using pH-methods of any brands with glass electrodes with a pH range from 0 to 14 and measurement error not exceeding + 0.1. To determine from 10 to 50 ml of water into a glass glass with a capacity of 50 to 100 ml according to GOST 25336. The pH definition is performed according to the instructions for the device.

6.7 To determine the content of suspended particles, the water sample with a volume of 0.5 to 1 liters is shaken for 20 minutes and filtered through a pre-weighted tigel with a porous bottom with a pore size of 5 to 10 microns. The crucible curtain is dried to a constant mass in a drying closet at a temperature (105 + 5) ° C until the difference between the results of two consecutive weighing will be no more than 0.1% of the weight of the hitch.

M \u003d M 1 -M 2 1Q 6 (2)

where M 1 is a mass of a trigger with a dried precipitate, r; T 2 - Mass of a crucible, g;

V is the volume of water selected for analysis, ml.

6.8 Water oxidation is determined by GOST 23268.12.

6.10 Water matches with the requirements of 4.6, 4.11, 4.12 Determine comparative tests of cement and concrete prepared on the subject and drinking water. The grasp of the cement test is determined according to GOST 310.3, concrete strength - according to GOST 10180, frost resistance - according to GOST 10060.0, GOST 10060.1, GOST 10060.2, water resistance - according to GOST 12730.5, corrosion state of reinforcement - according to GOST 31383.

7 Test Act

The act of testing water must contain:

a) description of the type and source of water;

b) the name of the settlement of the sampling;

c) time and date of sampling;

d) the name of the testing laboratory, its address and telephone, as well as the surname of those responsible for the test of persons;

e) test date;

e) test results and their assessment when compared with the requirements of this standard;

Water Test Scheme for Concrete and Construction Solutions

The scheme of testing water for concrete and solutions is shown in Figure A. 1.

Figure A. 1 (sheet 1)

Figure A. 1 (sheet 2)

Table B.1 - The content of soluble salts and ions in the water of the seas and oceans

Water requirements after washing equipment for the preparation and transportation of concrete and mortar mixtures

B.1 Scope

B.2 Terms and Definitions

B.2.1 Regenerated concrete production water: water including:

Water from residual concrete;

Water after washing the mixing containers of stationary mixers, concrete mixers and concrete pumps;

Technical water that comes after individual production processes (from the milling machine, after grinding and water cutting of hardened concrete, etc.);

Water that comes during the production of concrete mix.

Regenerated water can be withdrawn from:

Pond with special devices, with which solids may be homogeneously distributed in regenerated water;

Sustainer or similar installations, if regenerated water remains long enough in the sump, while solids that are in it can be deposited.

Note - residual water from the regeneration installations of concrete production contains variable amounts of coarse particles, the average size of which is less than 0.25 mm.

B.2.2 Combined water: a mixture of regenerated water of concrete production and water from another source.

The residual solution can be considered as residual concrete.

V.A. Restrictions on the use of regenerated water

Additional mass of solids in concrete when applying the regenerated water of concrete production should be less than 1% of the total mass of the aggregate mixture;

The possible effect of the application of regenerated water should be indicated in special cases, for example, in the production of "facial" concrete, precompanied reinforced concrete, cellular concrete, concrete operating in aggressive environmental conditions, and so on;

The mass of used regenerated water during production should be easily distributed as much as possible during the day.

Note - In special cases, the mass of solids can be more than 1%, if confirmed that all the required caption characteristics can be provided.

V.4 Requirements for regenerated water

V.4.1 General requirements

Regenerated or combined water for concrete must comply with the requirements of Section 4 and additionally the following requirements.

V.4.2 Storage

The regenerated water in the reservoir should be carefully protected from contamination.

VAZ Distribution of solids in regenerated water

In the event that the density of regenerated water exceeds 1.01 kg / l, the uniform distribution of solids in regenerated water must be ensured by the activities intended for this.

At the density of the regenerated water, less than 1.01 kg / l mass of solids is allowed not to be considered. V.4.4 The content of solids in regenerated water

Table B.1 - The content of solids in regenerated water

Density of regenerated water, kg / l		Water volume, l / l

Note - when calculating solids content in regenerated water, the density of the grain of the solid is taken equal to 2.1 kg / l. If the solids content of W 0CJ is higher than indicated in Table B.1, then it can be calculated by the formula

gDER B - the density of regenerated water, kg / l; P 3 is the density of solids grain, kg / l.

V.5 Control

V.5.1 Density

The density of regenerated or combined water is determined in homogenized samples selected from the water tank.

V.5.2 Fitness

The suitability of regenerated or combined water is determined in accordance with section 4.

Bibliography

Sav. Unified methods of water quality research. 4.1. "Methods of chemical analysis of water." T. 1. - M "1977

UDC 628.1034: 69: 006.354 μS 91.100.30 NEQ

Keywords: water for the preparation of concrete and mortars, quality requirements, suitability assessment

Editor V.N. Copys Technical Editor V.N. Prussakova Corrector Yu.M. Prokofiev computer layout I.A. Tyclina

Rent in the set 09/25/2012. Signed in printing 08.11.2012. Format 60x84) ^. Headset Arial. Hood. Pechs. l. 1.86. Ud. l. 1.40. Circulation 114 copies. Zack. 996.

FSUE "Standinform", 123995 Moscow, grenade lane., 4.

Vocated in FSUE "Standinform" on the PEVM

Printed in the branch of FSUE "Standinform" - type. "Moscow Printer", 105062 Moscow, Lyalin Per., 6.

p. 1.

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page 9.

p. 10.

p. 11.

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p. 15.

p. 16.

Preface

Objectives, basic principles and the main order of work on interstate standardization are established by GOST 1.0-92 "Interstate standardization system. Basic provisions "and MSN 1.01-01 -2009" The system of interstate regulatory documents in construction. Basic provisions "

Information about standard

1 Developed by the research, design and design and technological institution of concrete and reinforced concrete "NIIZB" - branch of FSUE "NIC" Construction "

2 Submitted by the Technical Committee on Standardization TC 465 "Construction"

3 adopted by the Interstate Scientific and Technical Commission for Standardization, Technical Registration and Evaluation of Conformity in Construction (Protocol No. 39 of December 8, 2011)

Short name of the country on MK (ISO 3166) 004-97	Country code for MK (ISO 3166) 004-97	Abbreviated name of the National Body of State Construction Management
Azerbaijan		Gosstroy
		Ministry of Urban Planning
Kazakhstan		Agency for construction and housing and communal services
Kyrgyzstan.		Gosstroy
		Ministry of Construction and Regional Development
The Russian Federation		Department of Regulation of the City Planning Activity of the Ministry of Regional Development
Tajikistan		The Agency for Construction and Architecture under the Government
Uzbekistan		State Architectstroy

Translation from English (EN).

The degree of conformity is non-equivalent (NEQ)

Information on the introduction of (termination) of this Standard is published in the National Standards Index.

Information about the changes to this standard is published in the index (catalog) "National Standards", and the text of the changes - in information signs "National Standards". In case of revision or cancellation of this standard, the relevant information will be published in the information indicator "National Standards"

Interstate standard

Date of administration - 2012-10-01

1 area of \u200b\u200buse

2 Regulatory references

This standard uses regulatory references to the following interstate standards:

b) natural surface and groundwater;

c) technical water;

d) sea and saline water;

e) water after washing equipment for the preparation and transportation of concrete and mortar mixtures;

e) Combined water, which is a mixture of water from two or more sources indicated above.

4 Technical requirements

4.1 Water for concrete and mortars must comply with the requirements of this standard.

4.3 For the preparation of concrete and mortar mixtures, concrete care and the washing of aggregates are not allowed to use waste, swamp and peat water.

Table 1 - Water content of soluble salts, sulfates, chlorides and suspended particles

Purpose of water	Maximum allowable content, mg / l
Purpose of water	soluble salts	suspended particles
1 Water for the indion of the concrete mix in the manufacture of stressful reinforced concrete structures and the injected solution
2 Water for the postection of concrete mixture in the manufacture of concrete and reinforced concrete structures with unprinted reinforcement, incl. For water-type structures and zones of variable horizon of water massive structures, as well as construction plaster solutions and solutions for reinforced stone masonry
3 Water for the postection of concrete mix in the manufacture of concrete unarmed structures, to which the requirements for limiting the formation of saws, concrete concrete and reinforced concrete structures of underwater and internal areas of massive structures, as well as construction solutions for unarmed stone masonry
4 Water for washing of aggregates, including wet control sorting and cooling of aggregates
5 Water for watering worker seams during breaks in concreting, joints of the joints to be omnoralizing, and surfaces of water-supply structures, as well as water for pipe cooling of the concrete array
6 Water for watering the finished outer surfaces of concrete and reinforced concrete structures
7 Water for watering the outer surfaces of concrete structures (including the surfaces of water-supplying structures), if the appearance of oction, heaps are allowed on the surface
NOTE - Water for the preparation of concrete on the alumina and plasterland cement must comply with the requirements of this table.

Table 2 - Contents in water nitrates, sulphides, sugars, phosphates and zinc

4.7 It is allowed to use water if there is only traces (iris) oil products, oils and fats on the surface.

4.8 The pH hydrogen indicator should be at least 4 and not more than 12.5.

4.9 Water oxidation must be no more than 15 mg / l.

4.10 It is allowed to use water with the intensity of the smell of no more than two points.

4.13 In places of water intake (with primary quality control of water), the content of coarse impurities in water should not be more than 4% by volume.

4.14 Test requirements and methods for preliminary assessment of water quality for concrete and mortars are shown in Table 3.

Table 3 - requirements and test methods for preliminary water quality assessment

Name of the indicator	Demand	Test method
1. The presence of petroleum products, oils and fats	Only traces are allowed
2. The presence of surfactants	Foam resistance - no more than 2 minutes
3. Color	From colorless to yellowish
4. Mountain impurities in water:	See the application in	According to V.5 applications in
	See the application in	According to V.5 applications in
From other sources	No more than 4% by volume
5. Water smell:	A light smell of cement is allowed, and when the ash is used, the slope is a light sulfide sulfide.
After washing equipment for the preparation and transportation of concrete and mortar mixtures
From other sources	Only the smell of drinking water. No smell of hydrogen sulfide after adding hydrochloric acid.
6. Acidity	12.5\u003e PH\u003e 4
7. Oxidability	No more than 15 mg / l
8. The presence of humic substances	After adding NaOH, the color of water should be weakly yellowish brown or lighter

5 Test Sampling

5.1 The volume of water samples taken for testing must be at least 5 liters.

5.3 Selection, storage and transportation of water samples - in accordance with GOST 24481.

5.4 Selected water test must be tested no later than two weeks after its selection.

6 Test Methods

6.2 Drinking water corresponding to the requirements of GOST 2874 is applied by any purpose without additional analyzes.

6.3.1 Smells The color of water is determined according to GOST 3351.

6.3.2 The presence of traces of petroleum products, oils, fats and emulsions determine visually when examining the surface of the water.

where V. Gr.ch - volume of coarse particles, ml;

1.25 - coefficient, taking into account the density of the packaging of coarse particles in the sediment;

V. - volume of water in a measuring cylinder, ml.

6.6 The pH hydrogen indicator is determined by the potentiometric method using PH-meters of any brands with glass electrodes with a pH range from 0 to 14 and measurement error not exceeding ± 0.1. To determine from 10 to 50 ml of water into a glass glass with a capacity of 50 to 100 ml according to GOST 25336. The pH definition is performed according to the instructions for the device.

6.7 To determine the content of suspended particles, the water sample with a volume of 0.5 to 1 liters is shaken for 20 minutes and filtered through a pre-weighted tigel with a porous bottom with a pore size of 5 to 10 microns. The crucible curtain is dried to a constant mass in a drying cabinet at a temperature (105 ± 5) ° C until the difference between the results of two consecutive weighing will be no more than 0.1% of the weight of the hitch.

where m. 1 - a mass of a crucible with a dried sediment, r;

t. 2 - a mass of crucibles, r;

V. - volume of water selected for analysis, ml.

6.8 Water oxidation is determined by GOST 23268.12.

6.9 In assessing the content of humic substances, 5 ml of the sample is placed in a test tube at a temperature of 15 ° C to 25 ° C, 5 ml of a 3% sodium hydroxide solution is added, the tube is shaken and left for 1 hour, after which the color of water is determined.

7 Test Act

The act of testing water must contain:

a) description of the type and source of water;

b) the name of the settlement of the sampling;

c) time and date of sampling;

d) the name of the testing laboratory, its address and telephone, as well as the surname of those responsible for the test of persons;

e) test date;

e) test results and their assessment when compared with the requirements of this standard;

Water Test Scheme for Concrete and Construction Solutions

The water test diagram for concrete and solutions is shown in Figure A.1.

Figure A.1 (sheet 1)

Figure A.1 (Sheet 2)

Appendix B.
(Reference)

Table B.1 - The content of soluble salts and ions in the water of the seas and oceans

Name
Name	soluble salts
Baltic Sea Bulips
Azov Sea
Aral Sea
Caspian Sea
Black Sea
White Sea
Oceans and open seas

Appendix B.
(mandatory)

Water requirements after washing equipment for the preparation and transportation of concrete and mortar mixtures

B.1 Scope

B.2 Terms and Definitions

B.2.1. Regenerated concrete production water:

Water including:

Water from residual concrete;

Water after washing the mixing containers of stationary mixers, concrete mixers and concrete pumps;

Technical water that comes after individual production processes (from the milling machine, after grinding and water cutting of hardened concrete, etc.);

Water that comes during the production of concrete mix.

Regenerated water can be withdrawn from:

Pond with special devices, with which solids can be homogeneously distributed in regenerated water;

Sustainer or similar installations, if regenerated water remains long enough in the sump, while solids that are in it can be deposited.

Note - residual water from the regeneration installations of concrete production contains variable amounts of coarse particles, the average size of which is less than 0.25 mm.

B.2.2 combined water:A mixture of regenerated water of concrete production and water from another source.

B.2.3. residual concrete:Freshly prepared concrete mix that did not fit or entered for use after cleaning concrete mixers at the manufacturer. The residual concrete also includes a freshly prepared concrete mixture that enters for use after cleaning the concrete mixers and concrete pumps.

The residual solution can be considered as residual concrete.

B.3 Restrictions on the use of regenerated water

Additional mass of solids in concrete when applying the regenerated water of concrete production should be less than 1% of the total mass of the aggregate mixture;

The possible effect of the use of regenerated water should be indicated in special cases, for example, in the production of "facial" concrete, pre-stressed reinforced concrete, cellular concrete, concrete operating in aggressive environmental conditions, etc.;

The mass of used regenerated water during production should be easily distributed as much as possible during the day.

Note - In special cases, the mass of solids can be more than 1%, if confirmed that all the required caption characteristics can be provided.

V.4 Requirements for regenerated water

V.4.1 General requirements

Regenerated or combined water for concrete must comply with the requirements of Section 4 and additionally the following requirements.

V.4.2 Storage

The regenerated water in the reservoir should be carefully protected from contamination.

V.4.3 Distribution of solids in regenerated water

In the event that the density of regenerated water exceeds 1.01 kg / l, the uniform distribution of solids in regenerated water must be ensured by the activities intended for this.

At the density of the regenerated water, less than 1.01 kg / l mass of solids is allowed not to be considered.

Table B.1 - The content of solids in regenerated water

Density of regenerated water, kg / l		Water volume, l / l

Note - when calculating solids content in regenerated water, the density of the grain of the solid is taken equal to 2.1 kg / l. If the solids content W. OIST higher than indicated in Table B.1, then it can be calculated by the formula

where ρ is the density of regenerated water, kg / l;

ρ s is the density of grain solids, kg / l.

AT 5 Control

V.5.1 Density

The density of regenerated or combined water is determined in homogenized samples selected from the water tank.

V.5.2 Fitness

The suitability of regenerated or combined water is determined in accordance with section 4.

Bibliography

Sav. Unified methods of water quality research. Part 1. "Methods of chemical analysis of water." T. 1. - M., 1977

gOST WATER for concrete 23732-2011

GOST 23732-2011 "Water for concrete and mortars. Technical conditions ";

4.6 Water corresponding to the requirements shown in Table 1, the content of nitrates, sulphides, sugars, phosphates, lead and zinc in which does not exceed the values \u200b\u200bshown in Table 2, recognized as suitable if compared with the test results carried out on drinking water, timelines Cement setting is changed by no more than 25%, concrete strength through 7 and 28 days of normal-humid vellency, as well as frost resistance and waterproof of concrete is not reduced, and the reinforcement steel in the concrete is in a steady passive state. This clause 23732-2011 for some reason also confuses water for concrete, which corresponds to the requirements of Table 1, suitable if

You will spend a test on

1 grappling cement - parallel samples drinking water + selection on water appropriate tablice time of grasp by 25% relative regulatory requirements By catching time, and maybe bad water for concrete will improve the grasp of cement?

2 Concrete strength in 7 days and water strength for concrete corresponding to the table 1 and Table 2 and the strength of concrete samples on drinking water (and the drinking water must be checked before using the drinking water according to GOST (but what does the term mean not? Decreases the strength. How many samples should be selected for a tendency to reduce strength, frost resistance to notice .6?

This is not a tendency but chance

And what is the limit to reduce the strength of 1MP, 2MP 32MPA?

3.And this item I generally like the imozoom resistance of concrete, the waterproof of concrete is not reduced on drinking water and which is called water for concrete and solutions ....

Who are concrete such and check all the compositions of concrete or one enough?

And how many should be the state in the construction laboratory 48 of the compositions of concrete to check on the water of the indion and on drinking water

Then it may be easier to write water for concrete to use drinking and enough.

4. And one more water test for concrete -

It is necessary to determine that the reinforcement steel in the concrete is in a steady passive state.

How cool and well this item sounded, and now quote

Tests of steel reinforcement in concrete performed on request

The aim of the work is the presence or absence of a passivating effect of concrete with this water of the indemnification to the steel valve valve was performed according to GOST R 52804 -2007 Corrosion protection (accelerated method) for tests were made concrete samples.

Evaluation of the effect of water for concrete on the corrosive state of reinforcement steel was prohibited by the nature of the anode polarization curves of changes in the electric current density depending on the potential value, given the electrochemical nature of concrete. The method allows to determine the ability of concrete on this water of the indemnification to pass steel, as immediately after the manufacture of reinforced concrete structures. And during the period of operation. Corrosion state of reinforcement steel was evaluated by the density of the current in accordance with GOST R 52804

In the new GUTE on the water for GOST 23732-2011, a new application has appeared

The requirement for water after washing the equipment for the preparation and transportation of concrete mixes and the term reignificated water appeared, which should be carefully cleaned from impurities and residual concrete, what to do with it, to distribute evenly in the regenated water ...... Link to GOST 23732-2011

GOST 31436-2011 "Breeds of mountain rocks for the production of rubble for construction work. Technical requirements and test methods ";

GOST 9479-2011 "Blocks of rocks for the production of facing, architectural and construction, memorial and other products. Technical conditions. "