7. Test Specimens
7.1
Mortar—The test specimen for mortar shall be a prism
of 1-in. [25-mm] square cross-section and approximately 11
1
⁄
4
in. [285 mm] in length. Three specimens shall be prepared for
each test condition.
7.2
Concrete—The test specimen for concrete, in which all
of the aggregate passes a 2-in. [50-mm] sieve, shall be a prism
of 4-in. [100-mm] square cross-section and approximately 11
1
⁄
4
in. [285 mm] long. However, a prism of 3-in. [75-mm] square
cross-section shall be used if all of the aggregate passes a 1-in.
sieve [25.0-mm]. Three specimens shall be prepared for each
test condition. Since length change is capable of being influ-
enced by the size of the specimen, specimens to be compared
shall have the same dimensions, and any specification limit
based upon this method shall be applied to a specified size of
specimen.
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