ASTM C1180-03

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Designation: C 1180 – 03
Standard Terminology of
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Mortar and Grout for Unit Masonry
This standard is issued under the fixed designation C 1180; 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.
1. Scope* admixture, n—substance other than the Specification C 270
prescribed materials of water, aggregate, and cementitious
1.1 This terminology contains terms, definitions of terms,
materials that is added to a masonry mortar as an ingredient
descriptions of terms, nomenclature, and explanations of ab-
to improve one or more chemical or physical properties of
breviations, acronyms, and symbols specifically associated
the conventional masonry mortar. C 1384
with standards under the jurisdiction of ASTM Committee C12
aggregates, n—a granular mineral material such as natural
on Mortars for Unit Masonry.
sand, manufactured sand, gravel, crushed stone, and air
1.2 The definitions and descriptions of terms in this termi-
cooled blast furnace slag.
nology pertain to Test Methods C 780, C 952, C 1019, and
bond enhancer, n—admixture incorporated into a masonry
C 1148 and Specifications C 144, C 270, C 404, C 476, C 887,
mortar to increase the bond strength between the mortar and
C 1142, and C 1384.
the masonry unit. C 1384
2. Referenced Documents
cementitious material, n—Committee C12 standards for mor-
tar and grout consider the following as cementitious mate-
2.1 ASTM Standards:
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rials: Hydraulic cements, pozzolans, hydrated lime or lime
C 144 Specification for Aggregate for Masonry Mortar
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putty, and ground granulated blast furnance slag.
C 270 Specification for Mortar for Unit Masonry
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C 404 Specification for Aggregates for Masonry Grout
DISCUSSION—Hydraulic cements (such as Portland cement, blended
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C 476 Specification for Grout for Masonry
cement, masonry cement, and mortar cement) react with water to
C 780 Test Method for Preconstruction and Construction harden and will do so under water. Pozzolans (such as coal fly ash, raw
or calcined natural pozzolans) react with lime in the presence of
Evaluation of Mortars for Plain and Reinforced Unit
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moisture. Hydrated lime and lime putty react with carbon dioxide from
Masonry
the air. Ground granulated blast furnance slag, blended cements, and
C 887 Specification for Packaged, Dry, Combined Materials
some pozzolans may exhibit both hydraulic and pozzolanic properties.
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for Surface Bonding Mortar
compressive strength, n—the maximum compressive load
C 952 Test Method for Bond Strength of Mortar to Masonry
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which a specimen will support divided by the cross sectional
Units
2
area of the specimen.
C 1019 Test Method of Sampling and Testing Grout
disturbed sample—any plastic mortar test sample which is
C 1142 Specification for Extended Life Mortar for Unit
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taken at some time after mixing and bulk sampling, that is
Masonry
further remixed or molded immediately prior to test, or both.
C 1148 Test Method for Measuring the Drying Shrinkage of
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C 780
Masonry Mortar
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durability, n—the ability of a material to resist weathering
C 1384 Specification for Modifiers for Masonry Mortars
action, chemical attack, abrasion, and other conditions of
3. Terminology
service.
flow, n—a laboratory measured mortar property that indicates
3.1 Definitions:
the percent increase in diameter of the base of the truncated
admixed mortar, n—masonry mortar that deviates from those
cone of mortar when it is placed on a flow table, and
combinations of materials recognized by Specification C 270
mechanically raised and dropped specified times under
in that it also contains an admixture. C 1384
specified conditions.
gradation, n—the particle size distribution of aggregate as
1 determined by separation with standard screens. Gradation
This terminology is under the jurisdiction of ASTM Committee C12 on Mortars
and Grouts for Unit Masonry and is the direct responsibility of Subcommittee of aggregate is expressed in terms of the individual percent-
C12.08 on Terminology.
ages passing standard screens. Sieve analysis and screen
Current edition approved January 10, 2003. Published May 2003. Originally
analysis are synonyms when referring to gradation of aggre-
published as C 1180–91. Last previous edition C 1180–02.
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gate.
Annual Book of ASTM Standards, Vol 04.05.
*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.
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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
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