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EXPERTISE // LABORATORIES // TESTING STANDARDS

Standard Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method

ASTM C231

This test method covers determination of the air content of freshly mixed concrete from observation of the change in volume of concrete with a change in pressure. ASTM C231 is intended for use with concretes and mortars made with relatively dense aggregates for which the aggregate correction factor can be satisfactorily determined by the technique. It is not applicable to concretes made with lightweight aggregates, air-cooled blast-furnace slag, or aggregates of high porosity. This test method is also not applicable to nonplastic concrete such as is commonly used in the manufacture of pipe and concrete masonry units.

WJE laboratories are accredited by AASHTO (R18) and ANAB (ISO/IEC 17025) to perform testing standard ASTM C231 for Standard Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method. Contact us to learn more.

Keywords

C231 - Air Content - Correction Factor - Freshly Mixed Concrete - Pressure - Volume

ICS CODE

ICS Number Code 91.100.30 (Concrete and concrete products)

CITATION FORMAT

ASTM C231 / C231M-17a, Standard Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method, ASTM International, West Conshohocken, PA, 2017, www.astm.org

Wiss, Janney, Elstner Associates is committed to helping our clients solve, repair, and avoid problems in the built world. Supported by unparalleled laboratory and field testing capabilities, our team of engineers, architects, and materials scientists brings an enthusiasm for problem solving and a hands-on technical approach to every challenge.

Ask the Structure and Solutions for the Built World are trademarks of Wiss, Janney, Elstner Associates, Inc.

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EXPERTISE // LABORATORIES // TESTING STANDARDS