STUDIES OF MULTIAXIAL SHEAR STRENGTHS FOR ROLLER-COMPACTED CONCRETE

This paper summarizes laboratory evaluations of roller-compacted concr ete (RCC) subject to pure compression, pure tension, direct shear, ten sion-shear, compression-shear, compression-compression-shear, and tens ion-compression-shear tests. Results of conventional concrete specimen s tested in a similar manner are also presented. Over 1000 specimens w ere used in these tests. Based on the experimental data obtained, the multiaxial shear strengths of RCC are given, which can be used as the design basis for RCC dams. To carry our these tests, the authors desig ned and installed a set of concrete triaxial apparatus that has proved to have many advantages.