Abstract
Abstract : Personnel of the Geotechnical and Structures Laboratory, U.S. Army Engineer Research and Development Center, conducted a laboratory investigation to characterize the strength and constitutive property behavior of a white masonry concrete (WMC). Forty-four mechanical property tests consisting of two hydrostatic compression tests, four unconfined compression (UC) tests, 17 triaxial compression (TXC) tests, two uniaxial strain tests, four uniaxial strain load/biaxial unload (UX/BX) tests, five uniaxial strain load/constant volume tests, two uniaxial strain load/constant strain ratio tests, five direct pull (DP) tests, and three reduced triaxial extension (RTE) tests were successfully completed. In addition to the mechanical property tests, nondestructive pulse-velocity measurements were performed on each specimen. The TXC tests exhibited a continuous increase in principal stress difference with increasing confining stress. A recommended compression failure surface was developed from the TXC and UC test results. Test data from the RTE and DP tests were used to develop a recommended extension failure surface for WMC. Results from the stress paths of the strain path tests and the recommended compression failure surface exhibited good agreement except for the UX/BX tests.
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