ASTM C873
Full Name
ASTM C873 – Standard Test Method for Compressive Strength of Concrete Cylinders Cast in Place in Cylindrical Molds
Scope
ASTM C873 outlines the procedure for determining the compressive strength of cylindrical concrete specimens that are cast in place using specialized molds attached to formwork. This test method is designed specifically for slabs with a concrete depth ranging from 125 to 300 mm (5 to 12 inches).
Key aspects covered by ASTM C873:
- Mold assembly: it details the use of a cylindrical mold assembly consisting of a mold and a tubular support member, which is fastened within the concrete formwork prior to concrete placement.
- Specimen preparation: the mold is filled with concrete during the normal course of placement, and the specimen is cured in place until immediately before demolding, capping, and testing.
- Strength determination: the compressive strength of the specimen is determined using ASTM C39.
- Correction factors: the reported compressive strength is corrected based on the specimen’s length-diameter ratio, using correction factors provided in ASTM C42.
- Significance and use: this test method is valuable for assessing the in-place strength of concrete in slabs, which can be used to evaluate the quality of the concrete and its compliance with specified requirements.
By following ASTM C873, engineers and technicians can obtain reliable and accurate data on the in-place compressive strength of concrete slabs. This information is essential for ensuring the structural integrity and performance of concrete structures.
ASTM C873 Accredited Laboratory
Applied Testing & Geosciences, LLC is accredited for performing tests using the ASTM C873 standard.
Contact us today to learn more about our testing capabilities and how we can support your business.
Resources
Keywords
compressive strength; concrete; cylindrical molds; cast-in-place; in-place strength; slab; mold assembly; capping; testing; correction factor