ASTM C476-99
(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.
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Designation: C 476 – 99
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Specification for
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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 3.1.1.1 Portland Cement—Type I, IA, II, IIA, III, and IIIA
of Specification C 150.
1.1 This specification covers two types of grout, fine and
3.1.1.2 Blended Cements—Type IS, IS(MS), IS-A, IS-
coarse grout, for use in the construction of masonry structures.
A(MS), IP, or IP-A of Specification C 595 or types GU, HE,
Grout is specified by: (1) proportions or (2) strength require-
MS, or HS of Specification C 1157.
ments.
3.1.1.3 Quicklime—Specification C 5.
1.2 The text of this specification references notes and
3.1.1.4 Hydrated Lime—Type S of Specification C 207.
footnotes that provide explanatory material. These notes and
3.1.1.5 Coal Fly Ash or Raw Calcined Natural Pozzolan—
footnotes (excluding those in tables and figures) shall not be
Specification C 618. Addition rates shall be in an amount
considered as requirements of this specification.
governed by the portland-pozzolan cement category of Speci-
2. Referenced Documents
fication C 595. The grout produced with blends of portland
cement and fly ash or raw calcined natural pozzolan shall have
2.1 ASTM Standards:
2
the compressive strength specified (5.2).
C 5 Specification for Quicklime for Structural Purposes
3.1.1.6 Granulated Blast Furnace Slag—Specification C
C 143/C 143M Test Method for Slump of Hydraulic-
3
989. Addition rates shall be as governed by the portland blast
Cement Concrete
2
furnace slag cement category of Specification C 595. Grouts
C 150 Specification for Portland Cement
produced with blends of portland cement and granulated blast
C 207 Specification for Hydrated Lime for Masonry Pur-
2
furnace slag shall have the compressive strength specified
poses
(5.2).
C 260 Specification for Air-Entraining Admixtures for Con-
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3.1.2 Air-Entraining Admixtures—Air-entraining admix-
crete
4
tures shall conform to Specification C 260.
C 404 Specification for Aggregates for Masonry Grout
2
3.1.3 Aggregates—Aggregates shall conform to Specifica-
C 595 Specification for Blended Hydraulic Cements
tion C 404.
C 618 Specification for Coal Fly Ash and Raw or Calcined
3.1.4 Water—Water shall be clean and potable.
Natural Pozzolan for Use as a Mineral Admixture in
2
3.1.5 Admixtures—Integral waterproofing compounds, ac-
Concrete
celerators, or other admixtures not mentioned definitely in the
C 989 Specification for Ground Granulated Blast-Furnace
3
specification shall not be used in grout for use in reinforced
Slag for Use in Concrete and Mortars
4
masonry without approval from the purchaser.
C 1019 Test Method for Sampling and Testing Grout
2
3.1.6 Pumping Aids—Pumping aids are permitted to be used
C 1157 Performance Specification for Hydraulic Cement
in cases where the brand, quality, and quantity are approved in
3. Materials
writing by the purchaser or are definitely stipulated in the
specification.
3.1 Materials used as ingredients in grout shall conform to
3.1.7 Antifreeze Compounds—No antifreeze liquids, salts,
the requirements specified in 3.1.1-3.1.8.
or other substances shall be used in grout to lower the freezing
3.1.1 Cementitious Materials—Cementitious materials shall
point.
conform to one of the following specifications:
3.1.8 Storage of Materials—Cementitious materials and
aggregates shall be stored in such a manner as to prevent
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This specification is under the jurisdiction of ASTM Committee C-12 on
deterioration or intrusion of foreign material or moisture. Any
Mortars for Unit Masonry and is the direct responsibility of Subcommittee C12.05
material that has become unsuitable for good construction shall
on Grout and Grout Admixtures for Masonry.
Current edition approved Jan. 10, 1999. Published June 1999. Originally not be used.
published as C 476 – 61 T. Last previous edition C 476 – 98.
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NOTE 1—If the grout is to be used to bond masonry units to reinforcing
Annual Book of ASTM Standards, Vol 04.01.
3
Annual Book of ASTM Standards, Vol 04.02.
4
Annual Book of ASTM Standards, Vol 04.05.
1
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C 476
TABLE 1 Grout Proportions by Volume
Parts by Volume Aggregate, Measured in a Damp, Loose Condition
Parts by Volume of
of Portland
Type Hydrated Lime or
Cement or
Lime Putty Fine Coarse
Blended Cemen
...
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