Research on the Shrinkage Performance of Vertical Vibration Compacted Cement-Stabilized Gravel

This study investigates the shrinkage performance of cement-stabilized gravel (CSG) compacted using vertical vibrations. The reliability of the vertical vibration compaction method (VVCM) for preparing CSG was confirmed by comparing the mechanical properties of different laboratory compaction specimens with field core samples. The factors influencing shrinkage deformations of CSG were investigated. Based on fracture mechanics, a pair of shrinkage cracking coefficients were proposed to represent the shrinkage cracking of CSG, and the shrinkage cracking performance of CSG was quantified to assess the effect of gradation and cement content on shrinkage cracking. The mechanical strength of VVCM-compacted CSGs was found to exhibit a correlation of 91