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This research work studies the cyclic response of artificially cemented sand samples. The material consists of fine silica sand, commercially known as Redhill 110; the cementation is induced by mixing the material with fast setting Portland cement and then applying the confining pressure. The bond formation is inferred from measurements of shear wave velocity using bender elements. It is observed that the small-strain stiffness, calculated by measuring the shear wave velocity, increases significantly in the first 20 hours from 130 MPa to 280 MPa. The sample is subsequently subjected to cyclic loading applied at a constant cyclic stress ratio (0.2). The results show an asymmetrical stress-strain curve that gradually moves towards large compressive strain. It is also noted that higher stiffness of the sample attributed to grain bonds is lost after the application of the first cycle of loading. The macroscopic behaviour observed in the cyclic triaxial test is finally discussed based on the microscopic features of the sample obtained from in X-Ray Computed Tomography Scanning with obtained images with voxel size of 4.998 μm.
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