Airmen from both Hurlburt Field and Tyndall Air Force Base use the stone-and-grout technique to form a cementitious cap to close out the third day of the expedient and expeditionary airfield damage repair demonstration at the Tyndall AFB, Fla. Silver Flag Testing Facility in December 2020. The demo was the first of several planned events as part of a joint capability technology demonstration to bring together airfield damage recovery teams from the U.S. Navy, U.S. Army Corps of Engineers and Air Force to demonstrate E-ADR advancements. (U.S. Air Force photo by David Ford)
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