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EXPERTISE // LABORATORIES // TESTING STANDARDS

Microscopical Determination of Parameters of the Air-Void System in Hardened Concrete

ASTM C457

The parameters of the air-void system of hardened concrete determined by the procedures described in this test method are related to the susceptibility of the cement paste portion of the concrete to damage by freezing and thawing. Hence, this test method can be used to develop data to estimate the likelihood of damage due to cyclic freezing and thawing or to explain why it has occurred. The test method can also be used as an adjunct to the development of products or procedures intended to enhance the resistance of concrete to cyclic freezing and thawing.

WJE laboratories are accredited by AASHTO (R18) and ANAB (ISO/IEC 17025) to perform testing standard ASTM C457 for Microscopical Determination of Parameters of the Air-Void System in Hardened Concrete. Contact us to learn more.

Keywords

ASTM C457 - Chemical Composition - Hardened Concrete - Microscopy - Porosity - Surface Area

ICS CODE

91.100.30 (Concrete and concrete products)

UNSPSC CODE

30111500 (Concrete and mortars)

CITATION FORMAT

ASTM C457 / C457M-16, Standard Test Method for Microscopical Determination of Parameters of the Air-Void System in Hardened Concrete, ASTM International, West Conshohocken, PA, 2016, 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.

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EXPERTISE // LABORATORIES // TESTING STANDARDS