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American Association of State and Highway Transportation Officials, 2021
Publisher: AASHTO
File Format: PDF
$30.00$61.00
Pages:11
File Size:1 file , 1.9 MB
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This practice covers procedures for making and curing cylinder and beam specimens from representative samples of fresh concrete for a construction project.
The concrete used to make the molded specimens shall be sampled after all on-site adjustments have been made to the mixture proportions, including the addition of mix water and admixtures. This practice is not satisfactory for making specimens from concrete not having measurable slump or requiring other sizes or shapes of specimens.
The values stated in SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.
This standard was formerly designated as standard method of test T 23.
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