ASTM C873/C873M-10a

ASTM C873/C873M-10a

December 2010
Standard Cancelled

Standard Test Method for Compressive Strength of Concrete Cylinders Cast in Place in Cylindrical Molds

This test method covers the determination of strength of cylindrical concrete specimens that have been molded and cured in place using special molds attached to formwork for slabs. A concrete cylinder mold assembly consisting of a mold and a tubular support member is fastened within the concrete formwork prior to placement of the concrete. The elevation of the mold upper edge is adjusted to correspond to the plane of the finished slab surface. The mold support prevents direct contact of the slab concrete with the outside of the mold and permits its easy removal from the hardened concrete. Strength of cast-in-place cylinders may be used for various purposes, such as estimating the load-bearing capacity of slabs, determining the time of form and shore removal, and determining the effectiveness of curing and protection. Consolidation of concrete in the mold may be varied to simulate the conditions of placement. Internal vibration of concrete in the mold is prohibited except under special circumstances. A strength correction factor is required if the length-diameter ratio is less than 1.75.

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Additional informations

1.1 This test method covers the determination of strength of cylindrical concrete specimens that have been molded in place using special molds attached to formwork. This test method is limited to use in slabs where the depth of concrete is from 125 to 300 mm [5 to 12 in.].

1.2 Units—The values stated in either 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 non-conformance with the standard.

1.3 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 consult and 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 skin and tissue upon prolonged exposure. )

Main informations

Collections

ASTM american standards

Publication date

December 2010

Number of pages

0 p.

Reference

ASTM C873/C873M-10a

Classification index

C0873_C0873M-10A
Sumary
Standard Test Method for Compressive Strength of Concrete Cylinders Cast in Place in Cylindrical Molds

This test method covers the determination of strength of cylindrical concrete specimens that have been molded and cured in place using special molds attached to formwork for slabs. A concrete cylinder mold assembly consisting of a mold and a tubular support member is fastened within the concrete formwork prior to placement of the concrete. The elevation of the mold upper edge is adjusted to correspond to the plane of the finished slab surface. The mold support prevents direct contact of the slab concrete with the outside of the mold and permits its easy removal from the hardened concrete. Strength of cast-in-place cylinders may be used for various purposes, such as estimating the load-bearing capacity of slabs, determining the time of form and shore removal, and determining the effectiveness of curing and protection. Consolidation of concrete in the mold may be varied to simulate the conditions of placement. Internal vibration of concrete in the mold is prohibited except under special circumstances. A strength correction factor is required if the length-diameter ratio is less than 1.75.

Replaced standards (1)
ASTM C873/C873M-10
June 2010
Standard Cancelled
Standard Test Method for Compressive Strength of Concrete Cylinders Cast in Place in Cylindrical Molds

This test method covers the determination of strength of cylindrical concrete specimens that have been molded and cured in place using special molds attached to formwork for slabs. A concrete cylinder mold assembly consisting of a mold and a tubular support member is fastened within the concrete formwork prior to placement of the concrete. The elevation of the mold upper edge is adjusted to correspond to the plane of the finished slab surface. The mold support prevents direct contact of the slab concrete with the outside of the mold and permits its easy removal from the hardened concrete. Strength of cast-in-place cylinders may be used for various purposes, such as estimating the load-bearing capacity of slabs, determining the time of form and shore removal, and determining the effectiveness of curing and protection. Consolidation of concrete in the mold may be varied to simulate the conditions of placement. Internal vibration of concrete in the mold is prohibited except under special circumstances. A strength correction factor is required if the length-diameter ratio is less than 1.75.

Standard replaced by (1)
ASTM C873/C873M-15
December 2015
Standard Cancelled
Standard Test Method for Compressive Strength of Concrete Cylinders Cast in Place in Cylindrical Molds

This test method covers the determination of strength of cylindrical concrete specimens that have been molded in place using special molds attached to formwork. A concrete cylinder mold assembly consisting of a mold and a tubular support member is fastened within the concrete formwork prior to placement of the concrete. The elevation of the mold upper edge is adjusted to correspond to the plane of the finished slab surface. The mold support prevents direct contact of the slab concrete with the outside of the mold and permits its easy removal from the hardened concrete. Strength of cast-in-place cylinders may be used for various purposes, such as estimating the load-bearing capacity of slabs, determining the time of form and shore removal, and determining the effectiveness of curing and protection. Consolidation of concrete in the mold may be varied to simulate the conditions of placement. Internal vibration of concrete in the mold is prohibited except under special circumstances.

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