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Laboratory Characterization of Gray Masonry Concrete
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 gray masonry concrete. A total of 38 mechanical property tests were successfully completed: two hydrostatic compression tests, four unconfined compression (UC) tests, 16 triaxial compression (TXC) tests, two uniaxial strain tests, two uniaxial strain load/biaxial strain unload tests, five uniaxial strain load/constant volume strain loading (UX/CV) tests, two uniaxial strain load/constant strain ratio (UX/SR) tests, three direct pull tests, and two reduced triaxial extension tests. In addition to the mechanical property tests, nondestructive pulse-velocity measurements were performed on each specimen. The TXC tests exhibited a continuous increase in maximum principal stress difference with increasing confining stress. A compression failure surface was developed from the TXC test results at eight levels of confining stress and from the results of the UC tests. The results of the direct pull and reduced triaxial extension tests were used to develop the extension failure surface. The resulting compression and extension failure surfaces were well defined and nonsymmetric about the mean normal stress axis. Good correlations were observed between the stress paths obtained from the UX/CV and UX/SR strain path tests and the failure surface from the TXC test.
Laboratory Characterization of Gray Masonry Concrete
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 gray masonry concrete. A total of 38 mechanical property tests were successfully completed: two hydrostatic compression tests, four unconfined compression (UC) tests, 16 triaxial compression (TXC) tests, two uniaxial strain tests, two uniaxial strain load/biaxial strain unload tests, five uniaxial strain load/constant volume strain loading (UX/CV) tests, two uniaxial strain load/constant strain ratio (UX/SR) tests, three direct pull tests, and two reduced triaxial extension tests. In addition to the mechanical property tests, nondestructive pulse-velocity measurements were performed on each specimen. The TXC tests exhibited a continuous increase in maximum principal stress difference with increasing confining stress. A compression failure surface was developed from the TXC test results at eight levels of confining stress and from the results of the UC tests. The results of the direct pull and reduced triaxial extension tests were used to develop the extension failure surface. The resulting compression and extension failure surfaces were well defined and nonsymmetric about the mean normal stress axis. Good correlations were observed between the stress paths obtained from the UX/CV and UX/SR strain path tests and the failure surface from the TXC test.
Laboratory Characterization of Gray Masonry Concrete
E. M. Williams (author) / S. A. Akers (author) / P. A. Reed (author)
2007
99 pages
Report
No indication
English
Ceramics, Refractories, & Glass , Fluid Mechanics , Structural Mechanics , Concrete , Compression , Stresses , Mechanical properties , Hydrostatics , Failure(Mechanics) , Gray(Color) , Masonry , Pull tests , Mean , Laboratory tests , Army research , Test methods , Gray masonry concrete , Compression tests , Txc(Triaxial compression) , Extension tests , Material characterization , Material properties
Laboratory Characterization of White Masonry Concrete
| NTIS | 2006
Online Contents | 2008
Online Contents | 2007
Concrete products, concrete masonry
| Engineering Index Backfile | 1930