In order to reveal the triaxial mechanical properties of basalt fiber coral seawater concrete,60 basalt fiber coral seawater concrete were designed for triaxial compression tests with the fiber admixture and the lateral confining pressure value as variation parameters.The damage morphology of the specimens was observed,and the stress-strain curves of specimens were obtained.The peak stress,peak strain,initial elastic modulus,energy dissipation and damage evolution process of basalt fiber all-coral seawater concrete were analyzed in depth.The test results show that with the increase of the lateral confining pressure,the failure mode of the specimen changes from vertical splitting failure to oblique shear failure and extrusion flow failure in turn,the slope of the rising section of the stress-strain curve increases,and the falling section tends to be gentle,and all the performance indicators shows nonlinear rise.With the increase of basalt fiber doping,the peak stress,elastic modulus and energy dissipation index of the specimen increased and then decreased,while the peak strain decreased and then increased,and the comprehensive performance was optimal when the fiber doping was 0.25％.Both lateral confining pressure and basalt fiber incorporation slowed the rate of damage development in the specimens.
维普
万方数据