This practice covers procedures for obtaining representative samples of fresh concrete as delivered to the project site on which tests are to be performed to determine compliance with quality requirements of the specifications under which the concrete is furnished. The practice includes sampling from stationary, paving and truck mixers, and from agitating and nonagitating equipment used to transport central-mixed concrete and from continuous mixing equipment as described in Specification C685/C685M. 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.
KeywordsC172 - Freshly Mixed Concrete - Mixer Trucks
ICS CODE91.100.30 (Concrete and concrete products)
ASTM C172 / C172M-17, Standard Practice for Sampling Freshly Mixed Concrete, ASTM International, West Conshohocken, PA, 2017, www.astm.org