Abstract
Mud construction waste lightweight soil (MCWLS) is made by dredged mud, lightweight construction waste (LCW), cement. Consolidated-drained (CD) shear tests were conducted to investigate the shear characteristics of MCWLS. The stress-strain relationships were divided into three types: strain-hardening, strain-softening and ideal elastic-plastic. A straight line was presented as the failure envelope. The cohesion and internal friction angle were first increased then decreased with the increase of LCW content, the peak value corresponding to LCW content of 50%. Failure modes showed the drum type and contraction type. A new bi-exponential expression model was proposed to describe the three stress-strain curves simultaneously.
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