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ASTM C476-02

(Specification)

Standard Specification for Grout for Masonry

Standard Specification for Grout for Masonry

SCOPE
1.1 This specification covers two types of grout, fine and coarse grout, for use in the construction of masonry structures Grout is specified by: (1) proportions or (2) 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.

General Information

Status
Historical
Publication Date
09-Aug-2002
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

Relations

Replaces
ASTM C476-01 - Standard Specification for Grout for Masonry
Effective Date
10-Aug-2002
Replaced By
ASTM C476-07 - Standard Specification for Grout for Masonry
Effective Date
01-Aug-2007
Referred By
ASTM C901-18 - Standard Specification for Prefabricated Masonry Panels
Effective Date
10-Aug-2002
Referred By
ASTM C1019-20 - Standard Test Method for Sampling and Testing Grout for Masonry
Effective Date
10-Aug-2002
Referred By
ASTM D4729-19 - Standard Test Method for In Situ Stress and Modulus of Deformation Using the Flat Jack Method
Effective Date
10-Aug-2002
Referred By
ASTM C404-18 - Standard Specification for Aggregates for Masonry Grout
Effective Date
10-Aug-2002
Referred By
ASTM E3355-23 - Standard Guide for Characterization of Coal Combustion Products (CCPs) in Storage Area(s) for Beneficial Use
Effective Date
10-Aug-2002
Referred By
ASTM C1314-23a - Standard Test Method for Compressive Strength of Masonry Prisms
Effective Date
10-Aug-2002
Referred By
ASTM C1180-22 - Standard Terminology of Mortar and Grout for Unit Masonry
Effective Date
10-Aug-2002
Referred By
ASTM C1692-18 - Standard Practice for Construction and Testing of Autoclaved Aerated Concrete (AAC) Masonry
Effective Date
10-Aug-2002

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ASTM C476-02 - Standard Specification for Grout for Masonry
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: C 476 – 02
Standard Specification for
1
Grout for Masonry
This standard is issued under the fixed designation C 476; 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 (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope * 3.1.1 Cementitious Materials—Cementitiousmaterialsshall
conform to one of the following specifications:
1.1 This specification covers two types of grout, fine and
3.1.1.1 Portland Cement—Type I, IA, II, IIA, III, and IIIA
coarse grout, for use in the construction of masonry structures.
of Specification C 150.
Grout is specified by (1) proportions or (2) strength require-
3.1.1.2 Blended Cements—Type IS, IS(MS), IS-A, IS-
ments.
A(MS), IP, or IP-A of Specification C 595 or types GU, HE,
1.2 The text of this specification references notes and
MS, or HS of Specification C 1157.
footnotes that provide explanatory material. These notes and
3.1.1.3 Quicklime—Specification C 5.
footnotes (excluding those in tables and figures) shall not be
3.1.1.4 Hydrated Lime—Type S of Specification C 207.
considered as requirements of this specification.
3.1.1.5 Coal Fly Ash or Raw Calcined Natural Pozzolan—
2. Referenced Documents
Specification C 618. Addition rates shall be in an amount
governed by the portland-pozzolan cement category of Speci-
2.1 ASTM Standards:
2
fication C 595. The grout produced with blends of portland
C 5 Specification for Quicklime for Structural Purposes
cement and fly ash or raw calcined natural pozzolan shall have
C 143/C 143M Test Method for Slump of Hydraulic-
3
the compressive strength specified (4.2.2).
Cement Concrete
2
3.1.1.6 Granulated Blast Furnace Slag—Specification C
C 150 Specification for Portland Cement
989. Addition rates shall be as governed by the portland blast
C 207 Specification for Hydrated Lime for Masonry Pur-
2
furnace slag cement category of Specification C 595. Grouts
poses
produced with blends of portland cement and granulated blast
C 260 Specification forAir-EntrainingAdmixtures for Con-
3
furnace slag shall have the compressive strength specified
crete
4
(4.2.2).
C 404 Specification for Aggregates for Masonry Grout
2
3.1.2 Air-Entraining Admixtures—Air-entraining admix-
C 595 Specification for Blended Hydraulic Cements
tures shall conform to Specification C 260.
C 618 Specification for Coal Fly Ash and Raw or Calcined
3.1.3 Aggregates—Aggregates shall conform to Specifica-
Natural Pozzolan for Use as a Mineral Admixture in
2
tion C 404.
Concrete
3.1.4 Water—Water shall be clean and potable.
C 989 Specification for Ground Granulated Blast-Furnace
3
3.1.5 Admixtures—Integral waterproofing compounds, ac-
Slag for Use in Concrete and Mortars
4
celerators, or other admixtures not mentioned definitely in the
C 1019 Test Method for Sampling and Testing Grout
2
specification shall not be used in grout for use in reinforced
C 1157 Performance Specification for Hydraulic Cement
masonry without approval from the purchaser.
3. Materials
3.1.6 PumpingAids—Pumpingaidsarepermittedtobeused
in cases where the brand, quality, and quantity are approved in
3.1 Materials used as ingredients in grout shall conform to
writing by the purchaser or are definitely stipulated in the
the requirements specified in 3.1.1-3.1.8.
specification.
3.1.7 Antifreeze Compounds—No antifreeze liquids, salts,
or other substances shall be used in grout to lower the freezing
1
This specification is under the jurisdiction of ASTM Committee C12 on
point.
Mortars and Grouts for Unit Masonryand is the direct responsibility of Subcom-
3.1.8 Storage of Materials—Cementitious materials and
mittee C12.05 on Grout and Grout Admixtures for Masonry.
Current edition approved August 10, 2002. Published September 2002. Origi-
aggregates shall be stored in such a manner as to prevent
nally published as C 476–61T. Last previous edition C 476–02.
deterioration or intrusion of foreign material or moisture. Any
2
Annual Book of ASTM Standards, Vol 04.01.
3
material that has become unsuitable for good construction shall
Annual Book of ASTM Standards, Vol 04.02.
4
Annual Book of ASTM Standards, Vol 04.05. not be used.
*ASummary 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 ----------------------
C476–02
TABLE 1 Grout Proportions by Volume
Type Parts by Volume of Parts by Volume of Aggregate,
Portland Cement or Hydrated Lime or Lime Measured in a Damp, Loose Condition
Blended Cement Putty
Fine Coarse
1 1
Fine grout 1 0– ⁄10 2 ⁄4–3 times
...

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5.1 During preconstruction and construction evaluations, use of these test methods establishes specific and overall performance characteristics for the mortar system.  
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1.1 These test methods cover procedures for the sampling and testing of mortars for composition and for their plastic and hardened properties, either before or during their actual use in construction.
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1.1 This specification covers mortar for the repair of masonry constructed with methods and materials that pre-date the origination of current standards of construction. The mortar may be used for non-structural purposes such as repointing of the masonry, or for structural purposes such as, but not restricted to, re-construction or repair of mortar joints that contribute to the structural integrity of the masonry.  
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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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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.  
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1.1 This terminology covers terms, definitions of terms, descriptions of terms, nomenclature, and explanations of abbreviations, acronyms, and symbols specifically associated with standards under the jurisdiction of ASTM Committee C12 on Mortars and Grouts for Unit Masonry.  
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ASTM C1324-20a(Test Method)
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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.  
4.2 The test method consists of procedures and sub-procedures, each requiring a substantial degree of petrographic and chemical skills and relatively elaborate instrumentation.  
4.3 The chemical data considered together with results of petrographic examination of a mortar provide for calculation of component proportions and thus allow a determination of mortar composition as represented by Types M, N, S, and O in Table 1 (Proportion Specification Requirements) of Specification C270.  
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.  
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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.  
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ABSTRACT
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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.  
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