文献类型：期刊文献

英文题名：Laboratory and theoretical investigations on mechanical behavior of PLFG mixture

作者：Wei, Wang[1]; Lu, Tinghao[2]; Jin, Weimin[1]; Chi, Xuchao[1,3]

机构：[1] School of Engineering, Shaoxing University, Shaoxing, 312000, China; [2] Geotechnical Institute, Hohai University, Nanjing, 210098, China; [3] Melbourne School of Design, Melbourne University, VIC, 3010, Australia

年份：2013

卷号：13

期号：18

起止页码：3612

外文期刊名：Journal of Applied Sciences

收录：EI(收录号：20134416921448)、Scopus(收录号：2-s2.0-84886234269)

语种：英文

外文关键词：Compression testing - Curves (road) - Geotechnical engineering - Gypsum - Lime - Mixtures

外文摘要：Phosphogypsum-lime-flyash-gravel Mixture (PLFG) is usually used to strengthen road foundation of geotechnical engineering. It is important to correctly understand its mechanical behavior before corresponding design. In this present paper, compaction test, one-dimensional compression test and dry-shrinkage test were conducted to determine optimum mixture ration of PLFG. compression test on PLFG with optimum ration was carried out in order to investigate its stress-strain curve. Experiment data show that PLFG is with high bearing capacity and good stiffness. A new composite-exponent model was established, which is available for both hardening and softening type strain-stress curves of PLFG. Mathematical behavior of the presented model is far better than others to describe PLFG's structural property. Finally, comparison between PLFG tested data and new model simulation was performed and good agreements have been found. This research is helpful for engineering sustainable utilization of to bring economy and to reduce environmental pollution. ? 2013 Asian Network for Scientific Information.