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Tech Sgt. Erin Eagleson, the Engineering Flight NCOIC assigned to the 332nd Expeditionary Civil Engineer Squadron annotates the date, time and slump measurement on a cylinder after testing a new batch of concrete while her team repairs a damaged runway at an undisclosed location in Southwest Asia Nov. 28, 2017. Two samples from each batch must be checked for fluidity and strength. (U.S. Air Force photo by Senior Master Sgt. Cohen A. Young)
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