ASTM-C31 Historical Revision Information
Standard Practice for Making and Curing Concrete Test Specimens in the Field

ASTM-C31 - 2008 EDITION - SUPERSEDED
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Standard Practice for Making and Curing Concrete Test Specimens in the Field
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Scope

1.1 This practice covers procedures for making and curing cylinder and beam specimens from representative samples of fresh concrete for a construction project.

1.2 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.

1.3 The values stated in either inch-pound units or SI units shall be regarded separately as standard. The SI units are shown in brackets. The values stated may not be exact equivalents; therefore each system must be used independently of the other. Combining values from the two units may result in nonconformance.

1.4 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 and health practices and determine the applicability of regulatory limitations prior to use. (WarningFresh hydraulic cementitious mixtures are caustic and may cause chemical burns to exposed skin and tissue upon prolonged exposure. )

1.5 The text of this standard references notes which provide explanatory material. These notes shall not be considered as requirements of the standard.

Significance and Use

This practice provides standardized requirements for making, curing, protecting, and transporting concrete test specimens under field conditions.

If the specimens are made and standard cured, as stipulated herein, the resulting strength test data when the specimens are tested are able to be used for the following purposes:

Acceptance testing for specified strength,

Checking adequacy of mixture proportions for strength, and

Quality control.

If the specimens are made and field cured, as stipulated herein, the resulting strength test data when the specimens are tested are able to be used for the following purposes:

Determination of whether a structure is capable of being put in service,

Comparison with test results of standard cured specimens or with test results from various in-place test methods,

Adequacy of curing and protection of concrete in the structure, or

Form or shoring removal time requirements.

Keywords

beams; casting samples; concrete; curing; cylinders; testing; Beams/girders; Casting samples; Concrete test specimens; Curing (of concrete); Cylindrical concrete specimens; Field testing--concrete/aggregates; Flexural testing--concrete; ICS Number Code 91.100.30 (Concrete and concrete products)

To find similar documents by ASTM Volume:

04.02 (Concrete and Aggregates)

To find similar documents by classification:

91.100.30 (Concrete and concrete products Including admixtures)

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Document Number

ASTM-C31/C31M-08

Revision Level

2008 EDITION

Status

Superseded

Modification Type

Revision

Publication Date

Feb. 1, 2008

Document Type

Practice

Page Count

6 pages

Committee Number

C09.61