LAUSR

The compressibility and deformation of stabilized silt are important engineering characteristics. In order to study the compressibility and deformation of silt stabilized with lime, lime and cement mixture (LC), and a self-developed binder named SEU-2, the one-dimensional consolidation tests were conducted on stabilized silt cured for 7, 28, and 90 days. Meanwhile, the consolidation-undrained triaxial shear (CU) tests were conducted on the lime-, LC-, and SEU-2-stabilized silts at 28 days of curing to study deformation behavior of stabilized silt. The one-dimensional consolidation test results showed that the SEU-2-stabilized silt had better anti-compressibility performance in comparison with lime- and LC-stabilized silt. The evolution of compression modulus of lime-, LC-, and SEU-2-stabilized silt with the binder dosage was related to curing time. The compressibility coefficient of 6% and 8% lime-, LC-, and 4% and 8% SEU-2 binder-stabilized silt decreased at first and then increased with the increase in curing time. The CU tests revealed that the deviatoric stress–axial strain curves of SEU-2-stabilized silt exhibited a more obvious strain-softening behavior in comparison with lime- and LC-stabilized silt. In addition, the internal friction angle, cohesion, and brittleness index of SEU-2-stabilized silt were larger than that of lime- and LC-stabilized silt, and SEU-2-stabilized silt had a better anti-compression performance.