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Experimental study of engineering characteristic of expansive soils in theexpressway of Xiangtan-Shaoyang

YANG Guo-lin,WANG Yong-he, LI Xia-min(School of Civil Engineering and Architecture, Central South University, Changsha 410075, China)  
Engineering charactertic of expansive soils, expansive force, expansive value, swelling and shrinkage feature, which used in the expressway of Xingtan-Shaoyang, are obtained by test of rate free expansive, water content of limit, analysis of grain, clay content, mineral composition, soil deseribe, expansive stress, expansive value, basic phagsical and mechanical properties, chemical composition analyses. These could be used to guide design, construction, stabilization of expansive soil section of highway.
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