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Foundation blocks FBS and GOST standards. Foundation blocks Main block dimensions, mm

GOST 13579-78

Group Zh33

INTERSTATE STANDARD

CONCRETE BLOCKS FOR BASEMENT WALLS

Specifications

Concrete blocks for walls of basements. Specifications

MKC 91.080.40
OKP 58 3500

Date of introduction 1979-01-01

INFORMATION DATA

1. DEVELOPED

Central Research and Design Institute of Standard and Experimental Housing Design (TsNIIEP Dwelling) of Gosgrazhdanstroy

All-Union Scientific Research Institute of Prefabricated Factory Technology reinforced concrete structures and products (VNIIzhelezobeton) of the Ministry of Industry building materials USSR

INTRODUCED by the State Committee for Civil Engineering and Architecture under the USSR State Construction Committee

2. APPROVED AND ENTERED INTO EFFECT by the Resolution State Committee Council of Ministers of the USSR for Construction Affairs dated December 30, 1977 N 234

3. INSTEAD GOST 13579-68

4. REFERENCE REGULATIVE AND TECHNICAL DOCUMENTS


	Item number
GOST 5781-82
GOST 10060.0-95
GOST 10060.1-95
GOST 10060.2-95
GOST 10060.3-95
GOST 10060.4-95
GOST 10180-90
GOST 12730.0-78
GOST 12730.2-78
GOST 12730.3-78
GOST 12730.5-84
GOST 13015-2003	2.7, 2.12, 3.1, 4.8, 5.1, 5.7
GOST 17624-87
GOST 18105-86
GOST 21718-84
GOST 22690-88
SNiP 2.03.01-84
SNiP 2.03.11-85

5. EDITION (October 2005) with Amendment No. 1, approved in November 1985 (IUS 3-86)

This standard applies to blocks made from heavy concrete, as well as expanded clay concrete and dense silicate concrete medium density(in a dried to constant weight state) not less than 1800 kg/m and intended for basement walls and technical undergrounds buildings.

Solid blocks can be used for foundations.

1. TYPES AND CONSTRUCTION OF BLOCKS

1.1. Blocks are divided into three types:

FBS - solid;

FBV - solid with a cutout for laying lintels and passing communications under the ceilings of basements and technical undergrounds;

FBP - hollow (with voids open downwards).

1.2. The shape and dimensions of the blocks must correspond to those indicated in Figures 1-3 and Table 1.

Damn.1. FBS type blocks

FBS type blocks

Blocks 300 mm wide

Blocks 400, 500 and 600 mm wide

Drawing 1 (continued)

Damn.2. FBV type blocks

FBV type blocks

Damn.2

Damn.3. FBP type blocks

Blocks FBP type

Table 1


Block type	Main block dimensions, mm
		Width
		300; 400; 500; 600

		300; 400; 500; 600

1.3 The structure of the block symbols (brands) is as follows:

Block type (clause 1.1)

Block dimensions in decimeters: length (rounded)

height (rounded)

Type of concrete: heavy - T; on porous aggregates (expanded clay concrete) - P; dense silicate - C

Symbol of this standard

An example of a symbol for an FBS type block with a length of 2380 mm, a width of 400 mm and a height of 580 mm, made of heavy concrete:

FBS24.4.6-T GOST 13579-78

The same, type FBV 880 mm long, 400 mm wide and 580 mm high, made of concrete on porous aggregates (expanded clay concrete):

FBV9.4.6-P GOST 13579-78

The same, type FBP 2380 mm long, 500 mm wide and 580 mm high, made of dense silicate concrete:

FBP24.5.6-S GOST 13579-78

Note. It is allowed to manufacture and use blocks with a length of 780 mm (additional), accepted in those approved before 01/01/78 standard projects buildings for the duration of these projects.

1.4. The brands and characteristics of blocks made of heavy concrete are given in Table 2, those of expanded clay concrete - in Table 3, and those of dense silicate concrete - in Table 4.

With appropriate justification, the use of concrete blocks with classes of compressive strength different from those indicated in Tables 2-4 is allowed. In all cases, no more than B15 and no less should be taken:

B3.5 - for blocks made of heavy concrete and expanded clay concrete;

B12.5 """ dense silicate concrete.

Note. IN symbol blocks made of concrete of classes of compressive strength different from those indicated in Tables 2-4, the corresponding digital index must be entered before the letter characterizing the type of concrete.

table 2


Block brand	Concrete class by compressive strength	Mounting loop	Consumption of materials	Block weight (reference), t
				Concrete, m	Steel, kg
FBS24.3.6-T
FBS24.4.6-T
FBS24.5.6-T
FBS24.6.6-T
FBS12.4.6-T
FBS12.5.6-T
FBS12.6.6-T
FBS12.4.3-T
FBS12.5.3-T
FBS12.6.3-T
FBS9.3.6-T
FBS9.4.6-T
FBS9.5.6-T
FBS9.6.6-T
FBV9.4.6-T
FBV9.5.6-T
FBV9.6.6-T
FBP24.4.6-T
FBP24.5.6-T
FBP24.6.6-T

Note. The mass of the blocks is given for heavy concrete with an average density of 2400 kg/m.

Table 3


Block brand	Concrete class by compressive strength	Mounting loop	Consumption of materials	Block weight (reference), t
				Concrete, m	Steel, kg

FBS24.4.6-P
FBS24.5.6-P
FBS24.6.6-P
FBS12.4.6-P
FBS12.5.6-P
FBS12.6.6-P

FBS12.5.3-P
FBS12.6.3-P
FBS9.3.6-P
FBS9.4.6-P
FBS9.5.6-P
FBS9.6.6-P
FBV9.4.6-P
FBV9.5.6-P
FBV9.6.6-P
FBP24.4.6-P

FBP24.6.6-P

Note. The weight of the blocks, as well as the brand of mounting loops, are given for blocks made of expanded clay concrete with an average density of 1800 kg/m

Table 4


Block brand	Concrete class by compressive strength	Mounting loop	Consumption of materials	Block weight (reference), t
				Concrete, m	Steel, kg
FBS24.3.6-S
FBS24.4.6-S
FBS24.5.6-S
FBS24.6.6-S
FBS12.4.6-S
FBS12.5.6-S
FBS12.6.6-S
FBS12.4.3-S
FBS12.5.3-S
FBS12.6.3-S
FBS9.3.6-S
FBS9.4.6-S
FBS9.5.6-S
FBS9.6.6-S
FBV9.4.6-S
FBV9.5.6-S
FBV9.6.6-S
FBP24.4.6-S
FBP24.5.6-S
FBP24.6.6-S

Note. The mass of blocks, as well as mounting loops, is given for blocks made of dense silicate concrete with an average density of 2000 kg/m.

1.5. The location of the mounting loops in the blocks must correspond to that shown in Figures 1-3. The designs of mounting loops are given in the appendix.

It is allowed to install mounting loops in FBS type blocks with a length of 1180 and 2380 mm at a distance of 300 mm from the ends of the block and flush with its upper plane.

When using special gripping devices for lifting and mounting blocks, it is allowed, by agreement between the manufacturer and the consumer and design organization, production of blocks without mounting loops.

1.4, 1.5. (Changed edition, Amendment No. 1).

2. TECHNICAL REQUIREMENTS

2.1. The materials used to prepare concrete must ensure compliance technical requirements established by this standard and comply with applicable standards or technical specifications for these materials.

2.2. The actual strength of the concrete blocks (at design age and tempering) must correspond to the required strength assigned according to GOST 18105 depending on the standardized strength of concrete specified in project documentation on a building or structure, and on indicators of the actual uniformity of concrete strength.

(Changed edition, Amendment No. 1).

2.3. Frost resistance and water resistance of concrete should be assigned in the project depending on the operating mode of the structures and climatic conditions construction area in accordance with SNiP 2.03.01 for heavy concrete and expanded clay concrete and SN 165 for dense silicate concrete.

2.4. Concrete, as well as materials for preparing concrete blocks intended for use in conditions of exposure to aggressive environments, must meet the requirements of SNiP 2.03.11, as well as additional requirements CH 165 for blocks made of dense silicate concrete.

2.5. Concrete classes for compressive strength, concrete grades for frost resistance and water resistance, and, if necessary, requirements for concrete and materials for its preparation (see clause 2.4), must correspond to the design specified in orders for the production of blocks.

2.6. Delivery of blocks to the consumer should be made after the concrete reaches the required tempering strength (clause 2.2).

2.7. The value of the standardized tempering strength of concrete blocks as a percentage of the compressive strength class should be taken equal to:

50 - for heavy concrete and expanded clay concrete class B 12.5 and higher;

70 " " " class B 10 and below;

80" expanded clay concrete "B 10"

100" dense silicate concrete.

When delivering blocks in the cold season, it is allowed to increase the value of the standardized tempering strength of concrete as a percentage of the compressive strength class, but not more than:

70 - for concrete class B 12.5 and higher;

90 " " " At 10 and below.

The value of the standardized tempering strength of concrete should be taken according to the design documentation for a specific building or structure in accordance with the requirements of GOST 13015.

Delivery of blocks with a concrete tempering strength lower than the strength corresponding to its class in terms of compressive strength is carried out provided that the manufacturer guarantees that the concrete blocks achieve the required strength at the design age, determined by the results of testing control samples made from concrete mixture working personnel and stored in conditions in accordance with GOST 18105.

2.5-2.7. (Changed edition, Amendment No. 1).

2.8. When releasing blocks to consumers, the moisture content of expanded clay concrete should not be more than 12%.

2.9. The mounting loops of the blocks must be made from smooth hot-rolled rod reinforcement class A-I grades VSt3ps2 and VSt3sp2 or periodic profile Ac-II grade 10GT according to GOST 5781.

Reinforcement made of steel grade VSt3ps2 is not allowed to be used for mounting loops intended for lifting and installing blocks at temperatures below minus 40°C.

2.10. Deviations in millimeters of block sizes should not exceed:

2.11. The deviation from the straightness of the profile of the block surfaces should not exceed 3 mm over the entire length and width of the block.

2.12. Set the following categories concrete surface blocks:

A3 - front, intended for painting;

A5 - front, intended for finishing ceramic tiles, laid over a layer of mortar;

A6 - front unfinished;

A7 - non-facial, invisible under operating conditions.

Requirements for the quality of block surfaces are in accordance with GOST 13015.

(Changed edition, Amendment No. 1).

2.13. (Deleted, Amendment No. 1).

2.14. In the concrete of blocks accepted in accordance with Section 3, cracks are not allowed, with the exception of local surface shrinkage cracks, the width of which should not exceed 0.1 mm in blocks of heavy and dense silicate concrete and 0.2 mm in blocks of expanded clay concrete.

2.15. Mounting loops must be cleared of concrete deposits.

3. ACCEPTANCE RULES

3.1. Acceptance of blocks should be carried out in batches in accordance with the requirements of GOST 13015 and this standard.

3.2. Acceptance of blocks for frost resistance and water resistance of concrete, release humidity of expanded clay concrete, as well as water absorption of concrete blocks intended for use in an environment with an aggressive degree of exposure should be carried out based on the results of periodic tests.

3.3. Concrete tests for water resistance and water absorption of blocks subject to these requirements should be carried out at least once every 3 months.

3.4. The release moisture content of expanded clay concrete should be monitored at least once a month based on the results of testing samples taken from three finished blocks.

The actual release humidity should be assessed based on the results of checking each controlled block based on the average humidity value of samples taken from it.

3.5. Acceptance of blocks in terms of concrete strength (class of concrete in terms of compressive strength and tempering strength), compliance of mounting loops with the requirements of this standard, accuracy of geometric parameters, opening width of technological cracks and category of the concrete surface of the blocks should be carried out based on the results of acceptance tests.

3.6. Acceptance of blocks in terms of accuracy of geometric parameters, category of concrete surface and width of opening of technological cracks should be carried out based on the results of one-stage sampling control.

3.7. Acceptance of blocks based on the presence of mounting loops and the correct application of markings and signs should be carried out through continuous inspection with the rejection of blocks that have defects according to the specified indicators.

Section 3. (Changed edition, Amendment No. 1).

4. CONTROL AND TEST METHODS

4.1. The compressive strength of concrete should be determined according to GOST 10180 on a series of samples made from a concrete mixture of the working composition and stored under the conditions established by GOST 18105.

When testing blocks non-destructive methods the actual tempering compressive strength of concrete should be determined by the ultrasonic method in accordance with GOST 17624 or mechanical devices in accordance with GOST 22690, as well as other methods provided for by the standards for concrete testing methods.

(Changed edition, Amendment No. 1).

4.2. (Deleted, Amendment No. 1).

4.3. The grade of concrete for frost resistance must be controlled in accordance with GOST 10060.0 - GOST 10060.4.

4.4. The water resistance of concrete blocks should be determined according to GOST 12730.0 and GOST 12730.5 on a series of samples made from a concrete mixture of the working composition.

(Changed edition, Amendment No. 1).

4.4.1. (Deleted, Amendment No. 1).

4.5. Water absorption of concrete blocks intended for use in conditions of exposure to an aggressive environment should be determined in accordance with the requirements of GOST 12730.0 and GOST 12730.3 on a series of samples made from a concrete mixture of the working composition.

4.6. (Deleted, Amendment No. 1).

4.7. The moisture content of expanded clay concrete should be determined according to GOST 12730.0 and GOST 12730.2 by testing samples taken from finished blocks.

At least two samples should be taken from each block.

It is allowed to determine the moisture content of concrete blocks using the dielcometric method according to GOST 21718.

(Changed edition, Amendment No. 1).

4.8. Dimensions and deviation from straightness of blocks, position of mounting loops, as well as quality of surfaces and appearance blocks are checked according to GOST 13015.

5. MARKING, STORAGE AND TRANSPORTATION

5.1. Marking of blocks is in accordance with GOST 13015.

Markings and signs should be applied to the side surface of the block.

(Changed edition, Amendment No. 1).

5.2. Blocks should be stored in stacks, sorted by brand and batch and stacked close to each other.

The height of the stack of blocks should not be more than 2.5 m.

5.3. During storage and transportation, each block must be placed on wooden spacers, located vertically one above the other between rows of blocks.

The pads under the bottom row of blocks should be laid on a dense, carefully leveled base.

5.4. The thickness of the gaskets must be at least 30 mm.

5.5. The blocks must be transported with reliable fastening that protects them from displacement.

The height of the stack during transportation is set depending on the load capacity Vehicle and permissible loading dimensions.

5.6. Loading, transportation, unloading and storage of blocks must be carried out in compliance with measures to prevent the possibility of damage.

5.7. Requirements for the document on the quality of blocks supplied to the consumer are in accordance with GOST 13015.

Additionally, the document on the quality of the blocks must indicate the grades of concrete for frost resistance and water resistance, as well as the water absorption of concrete (if these indicators are specified in the order for the production of blocks).

(Changed edition, Amendment No. 1).

6. MANUFACTURER WARRANTY

6.1. The manufacturer must guarantee compliance of the supplied blocks with the requirements of this standard, subject to the consumer's compliance with the rules of transportation, conditions of use and storage of blocks established by this standard.

APPENDIX (required). MOUNTING HINGES

APPLICATION
Mandatory

Specification and selection of steel for one mounting loop

Electronic document text
and verified by:
official publication
M.: Standartinform, 2005

STATE STANDARD OF THE USSR UNION

CONCRETE BLOCKS FOR BASEMENT WALLS

Specifications

GOST 13579-78

STATE CONSTRUCTION COMMITTEE OF THE USSR

Moscow

STATE STANDARD OF THE USSR UNION

Date of introduction 01.01.79

This standard applies to blocks made from heavy concrete, as well as light and dense silicate concrete with an average density of at least 1800 kg/m 3 and intended for walls of basements and technical undergrounds of buildings. Solid blocks can be used for foundations.

(Changed edition, Amendment No. 1).

1. TYPES AND CONSTRUCTION OF BLOCKS

1.1. Blocks are divided into three types:

FBS - solid;

FBV - solid with a cutout for laying lintels and passing communications under the ceilings of basements and technical undergrounds;

FBP - hollow (with voids open downwards).

1.2. The shape and dimensions of the blocks must correspond to those indicated on - and in the table. 1.

Table 1

Block type	Main block dimensions, mm
	Lengthl	Widthb	Height h

FBS type blocks

A. Blocks 300 mm wide

With appropriate justification, it is permitted to use blocks made of concrete of classes of compressive strength that differ from those specified in -. In all cases, the concrete class for compressive strength should be taken no more than B15 and no less:

B3.5 - for blocks of heavy and light concrete;

B12.5 - for blocks made of dense silicate concrete.

Note. In the symbol for blocks made of concrete of compressive strength classes different from those indicated in -, the corresponding digital index should be entered before the letter characterizing the type of concrete.

1.5. The location of the mounting loops in the blocks must correspond to that indicated on -. The designs of mounting loops are given in.

It is allowed to install mounting loops in FBS type blocks with a length of 1180 and 2380 mm at a distance of 300 mm from the ends of the block and flush with its upper plane.

1.3 - 1.5.

Block brand	Concrete class by compressive strength	Mounting loop		Consumption of materials		Block weight (reference), t
Block brand	Concrete class by compressive strength	Brand	Quantity	Concrete, m 3	Steel, kg	Block weight (reference), t

Note. The mass of the blocks is given for heavy concrete with an average density of 2400 kg/m 3.

2.7. The value of the normalized tempering strength of concrete blocks (as a percentage of the compressive strength class) should be taken equal to:

50 - for heavy concrete and lightweight concrete class B12.5 and higher;

70 - for heavy concrete class B10 and below;

80 - for lightweight concrete class B10 and below;

100 - for dense silicate concrete.

When delivering blocks in the cold season, it is allowed to increase the standardized tempering strength of concrete, but not more than the following values (as a percentage of the compressive strength class):

70 - for concrete class B12.5 and higher;

90 - for concrete class B10 and below.

Delivery of blocks with a tempering strength of concrete below the strength corresponding to its class in terms of compressive strength is carried out provided that the manufacturer guarantees that the concrete blocks achieve the required strength at the design age, determined by the results of testing control samples made from a concrete mixture of the working composition and stored in conditions according to GOST 18105.

2.5 - 2.7. (Changed edition, Amendment No. 1).

2.8. When releasing blocks to consumers, the moisture content of lightweight concrete should not be more than 12%.

(Changed edition, Amendment No. 1).

2.9. The mounting loops of the blocks should be made from hot-rolled rod reinforcement smooth class A-I grades VSt3ps2 and VSt3sp2 or periodic profile Ac-II, grade 10GT according to GOST 5781.

Reinforcement made of steel grade VSt3ps2 is not allowed to be used for mounting loops intended for lifting and installing blocks at temperatures below minus 40° C.

2.10. Deviations in the design dimensions of blocks should not exceed, mm:

length 13

width and height 8

according to cutout sizes 5

2.11. The deviation from the straightness of the profile of the block surfaces should not exceed 3 mm over the entire length and width of the block.

(Changed edition).

2.12. The following categories of concrete block surfaces are established:

A3 - front, intended for painting;

A5 - front, intended for finishing with ceramic tiles laid over a layer of mortar;

A6 - front, unfinished;

A7 - non-facial, not visible under operating conditions.

Requirements for the quality of block surfaces are in accordance with GOST 13015.0.

(Changed edition, Amendment No. 1).

2.13. (Deleted, Amendment No. 1).

2.14. In concrete blocks accepted in accordance with Section. 3, cracks are not allowed, with the exception of local surface shrinkage cracks, the width of which should not exceed 0.1 mm in blocks of heavy and dense silicate concrete and 0.2 mm in blocks of lightweight concrete.

(Changed edition, Amendment No. 1).

2.15. Mounting loops must be cleared of concrete deposits.

3. ACCEPTANCE

3.1. Acceptance of blocks should be carried out in batches in accordance with the requirements of GOST 13015.1 and this standard.

3.2. Acceptance of blocks for frost resistance and water resistance of concrete, release moisture content of lightweight concrete, as well as water absorption of concrete blocks intended for use in an environment with an aggressive degree of exposure should be carried out based on the results of periodic tests.

3.3. Concrete tests for water resistance and water absorption of blocks subject to these requirements should be carried out at least once every 3 months.

3.4. The release moisture content of lightweight concrete should be monitored at least once a month based on the results of testing samples taken from three finished blocks.

The actual release humidity should be assessed based on the results of checking each controlled block based on the average humidity value of samples taken from it.

3.5. Acceptance of blocks in terms of concrete strength (class of concrete in terms of compressive strength and tempering strength), compliance of mounting loops with the requirements of this standard, accuracy of geometric parameters, width of technological cracks and category of concrete surface of blocks should be carried out based on the results of acceptance tests.

Sec. 3. (Changed edition, Amendment No. 1).

4. CONTROL AND TEST METHODS

When testing blocks using non-destructive methods, the actual tempering compressive strength of concrete should be determined by the ultrasonic method according to GOST 17624 or mechanical devices according to GOST 22690, as well as other methods provided for by the standards for concrete testing methods.

(Changed edition, Amendment No. 1).

4.2. (Deleted, Amendment No. 1).

4.3. The grade of concrete for frost resistance should be determined according to GOST 10060.

4.4. The water resistance of concrete blocks should be determined according to GOST 12730.0 and GOST 12730.5 on a series of samples made from a concrete mixture of the working composition.

(Changed edition, Amendment No. 1).

4.4.1. (Deleted, Amendment No. 1).

(Changed edition, Amendment No. 1).

4.6. (Deleted, Amendment No. 1).

4.7. The moisture content of lightweight concrete should be determined according to GOST 12730.0 and GOST 12730.2 by testing samples taken from finished blocks.

At least two samples should be taken from each block.

It is allowed to determine the moisture content of concrete blocks using the dielcometric method according to GOST 21718.

(Changed edition, Amendment No. 1).

The standard applies to blocks made from heavy concrete, as well as light and dense silicate concrete with an average density of at least 1800 kg/m3 and intended for walls of basements and technical undergrounds of buildings. Solid blocks can be used for foundations.

STATE STANDARD OF THE USSR UNION

CONCRETE BLOCKS FOR BASEMENT WALLS

Specifications

GOST 13579-78

STATE CONSTRUCTION COMMITTEE OF THE USSR

Moscow

STATE STANDARD OF THE USSR UNION

Date of introduction 01.01.79

(Changed edition, Amendment No. 1).

1. TYPES OF BLOCK CONSTRUCTION

1.1. Blocks are divided into three types:

FBS - solid;

FBV - solid with a cutout for laying jumpers and passing communications under the ceilings of basements and technical undergrounds;

FBP - hollow (with voids open at the bottom).

1.2. The shape and dimensions of the blocks must correspond to those indicated on - and in the table. 1.

Table 1

Block type	Main block dimensions, mm
	Lengthl	Widthb	Height h

FBS type blocks

A. Block width 300 mm

With appropriate justification, it is allowed to use blocks made of concrete of classes of compressive strength different from those specified in -. In this case, in all cases, the class of concrete for compressive strength should be taken no more than B15 and no less:

B3.5 - for blocks of heavy and lightweight concrete;

B12.5 - for blocks of dense silicate concrete.

1.5. The location of the mounting loops in the blocks must correspond to that indicated on -. The designs of the mounting loops are given in.

It is allowed to install mounting loops in FBS type blocks with a length of 1180 and 2380 mm at a distance of 300 mm from the ends of the block and flush with its upper plane.

1.3 - 1.5.

Block brand	Concrete class by compressive strength	Mounting loop		Consumption of materials		Block weight (reference), t
Block brand	Concrete class by compressive strength	Brand	Quantity	Concrete, m 3	Steel, kg	Block weight (reference), t

Note. Mass blocks are given for heavy concrete with an average density of 2400 kg/m 3.

2.7. The value of the normalized tempering strength of concrete blocks (as a percentage of the compressive strength class) should be taken equal to:

50 - for heavy concrete and light concrete class B12.5 and higher;

70 - for heavy concrete class B10 and below;

80 - for lightweight concrete class B10 and below;

100 - for dense silicate concrete.

When delivering blocks during the cold period of the year, it is allowed to increase the normalized tempering strength of concrete, but not more than the following values (as a percentage of the compressive strength class):

70 - for concrete class B12.5 and higher;

90 - for concrete class B10 or lower.

The value of the normalized tempering strength of concrete should be taken according to the design documentation for a specific building or structure in accordance with the requirements of GOST 13015.0.

2.5 - 2.7. (Changed edition, Amendment No. 1).

2.8. When releasing blocks to consumers, the moisture content of lightweight concrete should not be more than 12%.

(Changed edition, Amendment No. 1).

2.9. The mounting loops of the blocks should be made from smooth hot-rolled rod reinforcement of class A-I grades VSt3ps2 and VSt3sp2 or periodic profile Ac-II, grade 10GT according to GOST 5781.

Reinforcement made of steel grade VSt3ps2 is not allowed to be used for mounting loops intended for lifting and installing blocks at temperatures below minus 40° C.

2.10. Deviations in the design dimensions of blocks should not exceed, mm:

length 13

width and height 8

according to cutout sizes 5

2.11. The deviation from the straightness of the profile of the block surfaces should not exceed 3 mm over the entire length and width of the block.

(Changed edition).

2.12. The following categories of concrete block surfaces are established:

A3 - front, intended for painting;

A5 - front, intended for finishing with ceramic tiles laid over a layer of mortar;

A6 - front, unfinished;

A7 - non-facial, not visible under operating conditions.

Requirements for the quality of block surfaces are in accordance with GOST 13015.0.

(Changed edition, Amendment No. 1).

2.13. (Deleted, Amendment No. 1).

(Changed edition, Amendment No. 1).

2.15. Mounting loops must be cleared of concrete deposits.

3. ACCEPTANCE

3.1. Acceptance of blocks should be carried out in batches in accordance with the requirements of GOST 13015.1 and this standard.

3.2. Acceptance of blocks for frost resistance and water resistance of concrete, release moisture content of lightweight concrete, as well as water absorption of concrete blocks intended for operation in an environment with an aggressive degree of exposure should be carried out based on the results of periodic tests.

3.3. Tests of concrete water resistance and water absorption of blocks to which these requirements apply should be carried out at least once every 3 months.

3.4. The release moisture content of lightweight concrete should be monitored at least once a month based on the results of testing samples taken from three finished blocks.

The actual release humidity should be assessed based on the results of checking each controlled block based on the average humidity value of samples taken from it.

3.5. Acceptance of blocks in terms of concrete strength indicators (class of concrete in terms of compressive strength and tempering strength), compliance of mounting loops with the requirements of this standard, accuracy of geometric parameters, opening width of technological cracks and category of concrete surface of blocks should be carried out based on the results of acceptance tests.

3.6. Acceptance of blocks in terms of accuracy of geometric parameters, concrete surface category and technological crack opening width should be carried out based on the results of random inspection.

3.7. Acceptance of blocks for the presence of mounting loops and correct markings should be carried out through continuous inspection with the rejection of blocks that have defects according to the specified indicators.

Sec. 3. (Changed edition, Amendment No. 1).

4. CONTROL AND TEST METHODS

When testing blocks using non-destructive methods, the actual tempering compressive strength of concrete should be determined by the ultrasonic method in accordance with GOST 17624 or mechanical devices in accordance with GOST 22690, as well as other methods provided for in the standards for concrete testing methods.

(Changed edition, Amendment No. 1).

4.2. (Deleted, Amendment No. 1).

4.3. The frost resistance grade of concrete should be determined according to GOST 10060.

4.4. The water resistance of concrete blocks should be determined according to GOST 12730.0 and GOST 12730.5 on a series of samples made from a concrete mixture of the working composition.

(Changed edition, Amendment No. 1).

4.4.1. (Deleted, Amendment No. 1).

(Changed edition, Amendment No. 1).

4.6. (Deleted, Amendment No. 1).

4.7. The moisture content of lightweight concrete should be determined according to GOST 12730.0 and GOST 12730.2 by testing samples taken from finished blocks.

At least two samples should be taken from each block.

It is allowed to determine the moisture content of concrete blocks using the dielcometric method according to GOST 21718.

(Changed edition, Amendment No. 1).

4.8. The dimensions and deviations from the straightness of the blocks, the position of the mounting loops, the opening width of technological cracks, the sizes of shells, sagging and edges of concrete blocks should be checked by the methods established by GOST 26433.0 and GOST 26433.1.

(Changed edition, Amendment No. 1).

5. MARKING, STORAGE AND TRANSPORTATION

5.1. Marking of blocks is in accordance with GOST 13015.2.

Markings and marks should be applied to the side surface of the block.

(Changed edition, Amendment No. 1).

5.2. Blocks should be stored in stacks, sorted by brand and batch and stacked close to each other.

The height of the stack of blocks should be no more than 2.5 m.

5.3. During storage and transportation, each block should be placed on spacers located vertically one above the other between the rows of blocks.

The pads under the bottom row of blocks should be laid on a dense, carefully leveled base.

5.4. The thickness of the gaskets must be at least 30 mm.

5.5. During transportation, the blocks must be securely secured against displacement.

The height of the stack during transportation is set depending on the carrying capacity of the vehicles and the permissible loading dimensions.

5.6. Loading, transportation, unloading and storage of blocks should be carried out in compliance with measures to prevent the possibility of damage.

5.7. Requirements for the document on the quality of blocks supplied to the consumer are in accordance with GOST 13015.3.

Additionally, the document must indicate the quality of the blocks of concrete grades for frost resistance and water resistance, as well as the water absorption of concrete (if these indicators are specified in the order for the production of blocks).

(Changed edition, Amendment No. 1).

6. MANUFACTURER WARRANTY

APPENDIX 1330

INFORMATION DATA

1. DEVELOPED AND INTRODUCED State Committee for Architecture and Urban Planning under the USSR State Construction Committee (State Committee for Architecture)

Developers:

A.A. Sherencis, Ph.D. tech. Sciences (topic leader); V.F. Moskvin; L.G. Pashchevskaya; S.A. Kagan, Ph.D. tech. sciences; V.I. Denshchikov

2. APPROVED AND PUT INTO EFFECT Resolution of the State Committee of the Council of Ministers of the USSR for Construction Affairs dated December 30, 1977 No. 234

3. INSTEAD GOST 13579-68

4. REFERENCE REGULATIVE AND TECHNICAL DOCUMENTS

GOST 13015.2-81

GOST 13015.3-81

GOST 17624-87

GOST 18105-86

GOST 21718-84

GOST 22690-88

GOST 26433.0-85

GOST 26433.1-89

SNiP 2.03.01-84

SNiP 2.03.02-86

SNiP 2.03.11-85

5 REPUBLICATION (June 1990) with Changes No. 1, approved in November 1985 (IUS 3-86), and amendments

STATE STANDARD OF THE USSR UNION

CONCRETE BLOCKS FOR BASEMENT WALLS

Specifications

GOST 13579-78

STATE CONSTRUCTION COMMITTEE OF THE USSR

Moscow

STATE STANDARD OF THE USSR UNION

Date of introduction 01.01.79

(Changed edition, Amendment No. 1).

1. TYPES AND CONSTRUCTION OF BLOCKS

1.1. Blocks are divided into three types:

FBS - solid;

FBV - solid with a cutout for laying lintels and passing communications under the ceilings of basements and technical undergrounds;

FBP - hollow (with voids open downwards).

1.2. The shape and dimensions of the blocks must correspond to those indicated on - and in the table. 1.

Table 1

Block type	Main block dimensions, mm
	Lengthl	Widthb	Height h

FBS type blocks

A. Blocks 300 mm wide

B3.5 - for blocks of heavy and light concrete;

B12.5 - for blocks made of dense silicate concrete.

1.5. The location of the mounting loops in the blocks must correspond to that indicated on -. The designs of mounting loops are given in.

It is allowed to install mounting loops in FBS type blocks with a length of 1180 and 2380 mm at a distance of 300 mm from the ends of the block and flush with its upper plane.

1.3 - 1.5.

Block brand	Concrete class by compressive strength	Mounting loop		Consumption of materials		Block weight (reference), t
Block brand	Concrete class by compressive strength	Brand	Quantity	Concrete, m 3	Steel, kg	Block weight (reference), t

Note. The mass of the blocks is given for heavy concrete with an average density of 2400 kg/m 3.

2.7. The value of the normalized tempering strength of concrete blocks (as a percentage of the compressive strength class) should be taken equal to:

50 - for heavy concrete and lightweight concrete class B12.5 and higher;

70 - for heavy concrete class B10 and below;

80 - for lightweight concrete class B10 and below;

100 - for dense silicate concrete.

70 - for concrete class B12.5 and higher;

90 - for concrete class B10 and below.

The value of the standardized tempering strength of concrete should be taken according to the design documentation for a specific building or structure in accordance with the requirements.

2.5 - 2.7. (Changed edition, Amendment No. 1).

2.8. When releasing blocks to consumers, the moisture content of lightweight concrete should not be more than 12%.

(Changed edition, Amendment No. 1).

2.9. The mounting loops of the blocks should be made from hot-rolled smooth class A-I rod reinforcement of grades VSt3ps2 and VSt3sp2 or periodic profile Ac-II, grade 10GT.

Reinforcement made of steel grade VSt3ps2 is not allowed to be used for mounting loops intended for lifting and installing blocks at temperatures below minus 40° C.

2.10. Deviations in the design dimensions of blocks should not exceed, mm:

length 13

width and height 8

according to cutout sizes 5

2.11. The deviation from the straightness of the profile of the block surfaces should not exceed 3 mm over the entire length and width of the block.

(Changed edition).

2.12. The following categories of concrete block surfaces are established:

A3 - front, intended for painting;

A5 - front, intended for finishing with ceramic tiles laid over a layer of mortar;

A6 - front, unfinished;

A7 - non-facial, not visible under operating conditions.

Requirements for the quality of block surfaces - according to.

(Changed edition, Amendment No. 1).

2.13. (Deleted, Amendment No. 1).

(Changed edition, Amendment No. 1).

2.15. Mounting loops must be cleared of concrete deposits.

3. ACCEPTANCE

3.1. Acceptance of blocks should be carried out in batches in accordance with the requirements of this standard.

3.3. Concrete tests for water resistance and water absorption of blocks subject to these requirements should be carried out at least once every 3 months.

3.4. The release moisture content of lightweight concrete should be monitored at least once a month based on the results of testing samples taken from three finished blocks.

The actual release humidity should be assessed based on the results of checking each controlled block based on the average humidity value of samples taken from it.

3.5. Acceptance of blocks in terms of concrete strength (class of concrete in terms of compressive strength and tempering strength), compliance of mounting loops with the requirements of this standard, accuracy of geometric parameters, width of technological cracks and category of concrete surface of blocks should be carried out based on the results of acceptance tests.

Sec. 3. (Changed edition, Amendment No. 1).

4. CONTROL AND TEST METHODS

4.1. The compressive strength of concrete should be determined using a series of samples made from a concrete mixture of the working composition and stored under the conditions established.

When testing blocks using non-destructive methods, the actual tempering compressive strength of concrete should be determined using the ultrasonic method or mechanical instruments, as well as other methods provided for in the standards for concrete testing methods.

(Changed edition, Amendment No. 1).

4.2. (Deleted, Amendment No. 1).

4.3. The grade of concrete for frost resistance should be determined by.

4.4. The water resistance of concrete blocks should be determined by and on a series of samples made from a concrete mixture of the working composition.

(Changed edition, Amendment No. 1).

4.4.1. (Deleted, Amendment No. 1).

4.5. The water absorption of concrete blocks intended for use in conditions of exposure to an aggressive environment should be determined in accordance with the requirements and on a series of samples made from a concrete mixture of the working composition.

(Changed edition, Amendment No. 1).

4.6. (Deleted, Amendment No. 1).

4.7. The moisture content of lightweight concrete should be determined by testing samples taken from finished blocks.

At least two samples should be taken from each block.

B3.5 - for blocks of heavy and light concrete;

B12.5 - for blocks made of dense silicate concrete.

1.5. The location of the mounting loops in the blocks must correspond to that indicated on -. The designs of mounting loops are given in.

It is allowed to install mounting loops in FBS type blocks with a length of 1180 and 2380 mm at a distance of 300 mm from the ends of the block and flush with its upper plane.

1.3 - 1.5.

Block brand	Concrete class by compressive strength	Mounting loop		Consumption of materials		Block weight (reference), t
Block brand	Concrete class by compressive strength	Brand	Quantity	Concrete, m 3	Steel, kg	Block weight (reference), t

Note. The mass of the blocks is given for heavy concrete with an average density of 2400 kg/m 3.

2.7. The value of the normalized tempering strength of concrete blocks (as a percentage of the compressive strength class) should be taken equal to:

50 - for heavy concrete and lightweight concrete class B12.5 and higher;

70 - for heavy concrete class B10 and below;

80 - for lightweight concrete class B10 and below;

100 - for dense silicate concrete.

70 - for concrete class B12.5 and higher;

90 - for concrete class B10 and below.

2.5 - 2.7. (Changed edition, Amendment No. 1).

2.8. When releasing blocks to consumers, the moisture content of lightweight concrete should not be more than 12%.

(Changed edition, Amendment No. 1).

2.9. The mounting loops of the blocks should be made from hot-rolled smooth class A-I rod reinforcement of grades VSt3ps2 and VSt3sp2 or periodic profile Ac-II, grade 10GT according to GOST 5781.

Reinforcement made of steel grade VSt3ps2 is not allowed to be used for mounting loops intended for lifting and installing blocks at temperatures below minus 40° C.

2.10. Deviations in the design dimensions of blocks should not exceed, mm:

length 13

width and height 8

according to cutout sizes 5

2.11. The deviation from the straightness of the profile of the block surfaces should not exceed 3 mm over the entire length and width of the block.

(Changed edition).

2.12. The following categories of concrete block surfaces are established:

A3 - front, intended for painting;

A5 - front, intended for finishing with ceramic tiles laid over a layer of mortar;

A6 - front, unfinished;

A7 - non-facial, not visible under operating conditions.

Requirements for the quality of block surfaces are in accordance with GOST 13015.0.

(Changed edition, Amendment No. 1).

2.13. (Deleted, Amendment No. 1).

(Changed edition, Amendment No. 1).

2.15. Mounting loops must be cleared of concrete deposits.

3. ACCEPTANCE

3.1. Acceptance of blocks should be carried out in batches in accordance with the requirements of GOST 13015.1 and this standard.

3.3. Concrete tests for water resistance and water absorption of blocks subject to these requirements should be carried out at least once every 3 months.

3.4. The release moisture content of lightweight concrete should be monitored at least once a month based on the results of testing samples taken from three finished blocks.

The actual release humidity should be assessed based on the results of checking each controlled block based on the average humidity value of samples taken from it.

3.5. Acceptance of blocks in terms of concrete strength (class of concrete in terms of compressive strength and tempering strength), compliance of mounting loops with the requirements of this standard, accuracy of geometric parameters, width of technological cracks and category of concrete surface of blocks should be carried out based on the results of acceptance tests.

Sec. 3. (Changed edition, Amendment No. 1).

4. CONTROL AND TEST METHODS

(Changed edition, Amendment No. 1).

4.2. (Deleted, Amendment No. 1).

4.3. The grade of concrete for frost resistance should be determined according to GOST 10060.

4.4. The water resistance of concrete blocks should be determined according to GOST 12730.0 and GOST 12730.5 on a series of samples made from a concrete mixture of the working composition.

(Changed edition, Amendment No. 1).

4.4.1. (Deleted, Amendment No. 1).

(Changed edition, Amendment No. 1).

4.6. (Deleted, Amendment No. 1).

4.7. The moisture content of lightweight concrete should be determined according to GOST 12730.0 and GOST 12730.2 by testing samples taken from finished blocks.

At least two samples should be taken from each block.

It is allowed to determine the moisture content of concrete blocks using the dielcometric method according to GOST 21718.

(Changed edition, Amendment No. 1).

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