Strength and freeze-thaw cycle resistance of cement stabilized coastal clay mixed with shell powder

Abstract To study the effect of marine shell powder (SP) on mechanical properties cement solidified coastal clay (CSC), unconfined compressive strength test, freeze-thaw cycle test and Scanning Electron Microscope were conducted stabilized soil. The results show that SP could improve CSC to some extent. When content was 15%, highest. Moreover, under condition cycle, can enhance compactness cement-clay, which shows pore area decreases by 7.2% during 7 cycles. Finally, a mathematical empirical model strength, cycles cement-clay modified seashell (SPCSC) specimens established. has good relevance with investigated data, give theoretical foundation for improving performance using different environments.