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ASTM C476-20

(Specification)

Standard Specification for Grout for Masonry

Standard Specification for Grout for Masonry

ABSTRACT
This specification covers two types of grout, fine and coarse grout, for use in the construction of masonry structures. Grout is specified by proportions or strength requirements. Materials used as ingredients in grout shall conform to the requirements specified such as: cementitious materials; blended cements; quicklime; hydrated lime; coal fly ash or raw calcine natural pozzolan; granulated blast furnace slag; air-entraining admixtures; aggregates; water; pumping aids; antifreeze compounds; and storage of materials. Fine grout shall be manufactured with fine aggregates. Coarse grout shall be manufactured with a combination of coarse and fine aggregates. Proportions of ingredients shall be determined by grout proportion requirements and by the specified compressive strength. Materials for grout shall be measured in such a way that the required proportions of the grout materials are controlled and accurately measured. Grout shall be produced using one of the following procedures: grout materials mixed with water at the job site and ready-mixed grout transported to the job site.
SCOPE
1.1 This specification covers two types of grout, fine and coarse grout, for use in the construction of masonry structures. Each type (fine and coarse) is further classified as conventional grout (requiring mechanical consolidation by puddling or vibration when placed) and self-consolidating grout (not requiring mechanical consolidation when placed). Conventional grout is specified by (1) proportions or (2) strength requirements. Self-consolidating grout is specified by strength requirements.  
1.2 The text of this specification references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of this specification.  
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

Status
Historical
Publication Date
31-May-2020
ICS
91.100.10 - Cement. Gypsum. Lime. Mortar
Technical Committee
C12 - Mortars and Grouts for Unit Masonry
Drafting Committee
C12.05 - Grout & Grout Admixtures for Masonry
Current Stage
Ref Project

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:C476 −20
Standard Specification for
1
Grout for Masonry
This standard is issued under the fixed designation C476; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* C150/C150M Specification for Portland Cement
C207 Specification for Hydrated Lime for Masonry Pur-
1.1 This specification covers two types of grout, fine and
poses
coarse grout, for use in the construction of masonry structures.
C260/C260M Specification for Air-Entraining Admixtures
Each type (fine and coarse) is further classified as conventional
for Concrete
grout (requiring mechanical consolidation by puddling or
C404 Specification for Aggregates for Masonry Grout
vibration when placed) and self-consolidating grout (not re-
C494/C494M Specification for Chemical Admixtures for
quiring mechanical consolidation when placed). Conventional
Concrete
grout is specified by (1) proportions or (2) strength require-
C595/C595M Specification for Blended Hydraulic Cements
ments. Self-consolidating grout is specified by strength re-
C618 Specification for Coal Fly Ash and Raw or Calcined
quirements.
Natural Pozzolan for Use in Concrete
1.2 The text of this specification references notes and
C989/C989M Specification for Slag Cement for Use in
footnotes that provide explanatory material. These notes and
Concrete and Mortars
footnotes (excluding those in tables and figures) shall not be
C1019 Test Method for Sampling and Testing Grout for
considered as requirements of this specification.
Masonry
1.3 The values stated in inch-pound units are to be regarded
C1157/C1157M Performance Specification for Hydraulic
as standard. The values given in parentheses are mathematical
Cement
conversions to SI units that are provided for information only
C1602/C1602M Specification for Mixing Water Used in the
and are not considered standard.
Production of Hydraulic Cement Concrete
C1611/C1611M Test Method for Slump Flow of Self-
1.4 This international standard was developed in accor-
Consolidating Concrete
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
3. Materials
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
3.1 Materials used as ingredients in grout shall conform to
Barriers to Trade (TBT) Committee.
the requirements specified in 3.1.1 – 3.1.5.
3.1.1 Cementitious Materials—Cementitious materials shall
2. Referenced Documents
conform to one of the following specifications:
2
2.1 ASTM Standards:
3.1.1.1 Portland Cement—Type I, IA, II, IIA, III, and IIIA
C5 Specification for Quicklime for Structural Purposes
of Specification C150/C150M.
C29/C29M Test Method for Bulk Density (“Unit Weight”)
3.1.1.2 Blended Cements—Type IL, IS(<70), IP, IT(S<70),
and Voids in Aggregate
or blended cements with special properties designated by (A),
C143/C143M Test Method for Slump of Hydraulic-Cement
(MS), or (HS), or a combination of (A) and (MS) or (HS), as
Concrete
appropriate, of Specification C595/C595M.
3.1.1.3 Hydraulic Cements—Types GU, HE, MS, or HS of
1
This specification is under the jurisdiction of ASTM Committee C12 on
Specification C1157/C1157M.
Mortars and Grouts for Unit Masonry and is the direct responsibility of Subcom-
mittee C12.05 on Grout & Grout Admixtures for Masonry.
3.1.1.4 Quicklime—Specification C5.
Current edition approved June 1, 2020. Published June 2020. Originally
3.1.1.5 Hydrated Lime—Type S of Specification C207.
approved in 1961. Last previous edition approved in 2019 as C476 – 19. DOI:
10.1520/C0476-20.
3.1.1.6 Coal Fly Ash or Raw Calcined Natural Pozzolan—
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Specification C618. Addition rates shall be in an amount
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
governed by the portland-pozzolan cement category of Speci-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. fication C595/C595M. The grout produced with blends of
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
C476−20
TABLE 1 Conventional Grout Proportions by Volume
Type Parts by Volume of Parts by Volume of Aggregate,
A
Cement Hydrated Lime or Lime Measured in a Damp, Loose Condition
Putty
Fine Coarse
1 1
Fine grout 1 0– ⁄10 2 ⁄4 –3 times th
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: C476 − 19 C476 − 20
Standard Specification for
1
Grout for Masonry
This standard is issued under the fixed designation C476; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope*
1.1 This specification covers two types of grout, fine and coarse grout, for use in the construction of masonry structures. Each
type (fine and coarse) is further classified as conventional grout (requiring mechanical consolidation by puddling or vibration when
placed) and self-consolidating grout (not requiring mechanical consolidation when placed). Conventional grout is specified by (1)
proportions or (2) strength requirements. Self-consolidating grout is specified by strength requirements.
1.2 The text of this specification references notes and footnotes that provide explanatory material. These notes and footnotes
(excluding those in tables and figures) shall not be considered as requirements of this specification.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
C5 Specification for Quicklime for Structural Purposes
C29/C29M Test Method for Bulk Density (“Unit Weight”) and Voids in Aggregate
C143/C143M Test Method for Slump of Hydraulic-Cement Concrete
C150/C150M Specification for Portland Cement
C207 Specification for Hydrated Lime for Masonry Purposes
C260/C260M Specification for Air-Entraining Admixtures for Concrete
C404 Specification for Aggregates for Masonry Grout
C494/C494M Specification for Chemical Admixtures for Concrete
C595/C595M Specification for Blended Hydraulic Cements
C618 Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete
C989/C989M Specification for Slag Cement for Use in Concrete and Mortars
C1019 Test Method for Sampling and Testing Grout for Masonry
C1157/C1157M Performance Specification for Hydraulic Cement
C1602/C1602M Specification for Mixing Water Used in the Production of Hydraulic Cement Concrete
C1611/C1611M Test Method for Slump Flow of Self-Consolidating Concrete
3. Materials
3.1 Materials used as ingredients in grout shall conform to the requirements specified in 3.1.1 – 3.1.5.
3.1.1 Cementitious Materials—Cementitious materials shall conform to one of the following specifications:
3.1.1.1 Portland Cement—Type I, IA, II, IIA, III, and IIIA of Specification C150/C150M.
1
This specification is under the jurisdiction of ASTM Committee C12 on Mortars and Grouts for Unit Masonry and is the direct responsibility of Subcommittee C12.05
on Grout & Grout Admixtures for Masonry.
Current edition approved Dec. 1, 2019June 1, 2020. Published December 2019June 2020. Originally approved in 1961. Last previous edition approved in 20182019 as
C476 – 18.C476 – 19. DOI: 10.1520/C0476-19.10.1520/C0476-20.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
C476 − 20
3.1.1.2 Blended Cements—Type IL, IS(<70), IP, IT(S<70), or blended cements with special properties designated by (A), (MS),
or (HS), or a combination of (A) and (MS) or (HS), as appropriate, of Specification C595/C595M.
3.1.1.3 Hydraulic Cements—Types GU, HE, MS, or HS of Specification C1157/C1157M.
3.1.1.4 Quicklime—Specification C5.
3.1.1.5 Hydrated Lime—Type S of Specification C207.
3.1.1.6 Coal Fly Ash or Raw Calcined Natural Pozzolan—Specification C618. Addition rates shall be in an amount governed
by
...

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ABSTRACT
This specification covers two types of grout, fine and coarse grout, for use in the construction of masonry structures. Grout is specified by proportions or strength requirements. Materials used as ingredients in grout shall conform to the requirements specified such as: cementitious materials; blended cements; quicklime; hydrated lime; coal fly ash or raw calcine natural pozzolan; granulated blast furnace slag; air-entraining admixtures; aggregates; water; pumping aids; antifreeze compounds; and storage of materials. Fine grout shall be manufactured with fine aggregates. Coarse grout shall be manufactured with a combination of coarse and fine aggregates. Proportions of ingredients shall be determined by grout proportion requirements and by the specified compressive strength. Materials for grout shall be measured in such a way that the required proportions of the grout materials are controlled and accurately measured. Grout shall be produced using one of the following procedures: grout materials mixed with water at the job site and ready-mixed grout transported to the job site.
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SIGNIFICANCE AND USE
4.1 This test method provides procedures for petrographic examination and chemical analysis of mortar for components of masonry mortar. These components may include portland cement, hydrated calcitic or dolomitic lime, masonry cement, aggregates, and air.  
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4.4 Failure of a mortar to have the composition of any type as defined in Table 1 of Specification C270 does not necessarily mean that the mortar does not meet the requirements of Specification C270. The mortar may meet the alternative requirements of Table 2 (Property Specification Requirements) of Specification C270.  
4.5 The maleic acid method of analysis is not applicable for the analysis of mortar because it is greatly influenced by carbonation and does not provide for the determination of calcium.
SCOPE
1.1 This test method covers procedures for petrographic examination and chemical analysis of samples of masonry mortars. Based upon such examination and analysis, proportions of components in masonry mortars can be determined.
Note 1: This method is also applicable to hydraulic cement-based stucco and plaster. Some historic mortars may contain non-resolvable constituents that may interfere. However, significant information may be obtained by petrographic examinations.  
1.2 Interpretations and calculations of chemical results are dependent upon results of the petrographic examination. The use of the chemical results alone is contrary to the requirements of this test method.  
1.3 Procedures for sampling, petrographic examination, chemical analysis, and calculations of component proportions are given in the following sections:    
Section  
Sampling  
7  
Petrographic examination  
8  
Chemical analysis  
9  
Mortar proportion calculations  
10  
Report  
11  
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.5 The text of this standard references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.  
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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    7 pages
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  • Standard
    7 pages
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ASTM
ASTM C1586-20(Guide)
Standard Guide for Quality Assurance of Mortars

SIGNIFICANCE AND USE
3.1 This document is intended to provide guidance and clarification to designers, specifiers, inspectors, testing agencies, producers, and users in specifying and evaluating masonry mortar.  
3.2 Users of documents Specification C270 and Test Method C780 often confuse and sometimes inadvertently misuse parts of the two documents when specifying or evaluating masonry mortar. This guide seeks to address specific items within Specification C270 and Test Method C780 to help promote their proper use and interpretation.
SCOPE
1.1 This document provides guidance regarding the proper use of Specification C270 and Test Method C780 for evaluating masonry mortar produced in the laboratory and at the construction site.  
1.2 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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  • Guide
    4 pages
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ASTM
ASTM C887-20(Specification)
Standard Specification for Packaged, Dry, Combined Materials for Surface Bonding Mortar

ABSTRACT
This specification covers the materials, properties, and packaging of dry, combined materials for use as surface bonding mortar with concrete masonry units that have not been prefaced, coated, or painted. The materials used as ingredients shall consist of the following: cements which shall be a Portland cement, blended hydraulic cement, hydraulic cement, or masonry cement; Type S or SA hydrated lime; Class N, F, or S pozzolan; aggregates; glass fibers; and additives. Physical properties of the packaged materials shall conform to the flexural strength, compressive strength, time of setting, and water retention requirements. The net weight, amount of mixing water, unit weight, and yield of the surface bonding mortar shall be calculated and reported.
SCOPE
1.1 This specification covers the materials, properties, and packaging of dry, combined materials for use as surface bonding mortar with concrete masonry units that have not been prefaced, coated, or painted.  
1.2 This specification does not cover design or application. Consult the manufacturer for specific recommendations.  
1.3 Appendix X1 of this specification contains the recommended tests for evaluation of surface bonded masonry assemblages used to establish design loads for the composite wall.  
1.4 Appendix X2 through Appendix X5 of this specification contain additional tests that may be performed on surface bonding mortar.  
1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. This hazard statement applies only to Section 9 of this specification.  
1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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  • Technical specification
    13 pages
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