Investigators probe efficacy of 90-minute discharge window in ASTM C94

Findings in a Ready Mixed Concrete Research & Education Foundation report support reexamination of the 90-minute delivery threshold in ASTM C94, Standard Specification for Ready Mixed Concrete. The just-released “Impact of Extended Time to Discharge on Concrete Durability and Performance” covers a New Jersey Institute of Technology (NJIT) investigation of concrete specimen freeze-thaw performance and resistivity.

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“Concrete Credentials” podcast suits A/E/C, owner, developer audiences

Source: National Ready Mixed Concrete Association, Alexandria,Va.; CP staff

A new National Ready Mixed Concrete Association podcast will feature experts from design, development, construction and related sectors on the benefits of specifying concrete for buildings and transportation infrastructure. Executive Vice President, Structures and Sustainability PE, SE, LEED AP Lionel Lemay kicks off the series July 23 discussing issues impacting the concrete and construction industries, including sustainability efforts that are among the organization’s most important goals.

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