Proceedings of the Deep Mixing 2015 Conference, (DFI)
Characteristics of Strength Development of Fiber-Reinforced and Cement Improved Soft Clay of Shanghai
Mu Chen, Shanghai Jiao Tong University, China; Shui-Long Shen, Shanghai Jiao Tong University, China; Huai-Na Wu, Shanghai Jiao Tong University, China; Dong-Wei Hou, Shanghai Jiao Tong University, China; Ye-Shuang Xu, Shanghai Jiao Tong University, China
This paper presents a laboratory investigation on the mechanical behaviors of the cement-clay admixture improved by polypropylene fiber. Cement can significantly improve the clay admixture. The fiber additive also improves the strength and ductility of the improved clay. The Unconfined Compression Strength (UCS) of the polypropylene fiber-reinforced cement-clay presents an overall trend to grow with the increase of fiber length. The improved clay reached its peak strength at the fiber content of 0.5%. Then the UCS of the improved clay will slowly reverse if the fiber content continues to rise. For study of curing time, improved clay behaves better in its early strength, but an inhibition will be brought about if fibers are excessive.
|article #2093; publication #1013 (DM-2015)|