Little Rock Air Force Base Aggregate and Concrete Testing
ERDC VICKSBURG United States
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The Little Rock Air Force Base LRAFB tasked the ERDC to test and evaluate a concrete mixture design and the aggregates used therein. Experimentation consisted of basic aggregate test methods such as gradation, specific gravity, absorption, and organic materials. Concrete testing consisted of manufacturing a laboratory concrete mixture design provided by LRAFB and conducting compressive and flexural strength testing of cast specimens. In most cases the selected aggregate and concrete mixture design testing met specifications. However, there were some areas, such as aggregate gradations, in which the materials did not align with specified values or standards. Final hardened concrete properties of compressive and flexural strength met the mixture design requirements.
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