MECHANICAL PROPERTIES OF WHEAT STRAW AND STRENGTH OF ITS REINFORCED INSHORE SALINE SOIL 

This paper presents the mechanical performance of herbage fiber materials before and after anticorrosion and the strength characteristics of wheat straw reinforced inshore saline soil. It discusses the microstructure characteristics and the anti-corrosive method of the wheat straw. The wheat straw is tested and compared the increasing rate of weight, the water absorption, the tensile force and elongation of the wheat straws before and after anticorrosion treatment. The test results show that the soaking wheat straw into SH agent can not only protect it from corrosiveness, but also improve its mechanical properties. The results of unconfined compressive strength test of different lengths and adding ratios of wheat straw, and conditions after soaking agent show that the unconfined compressive strength of reinforced soil with 10mm long wheat straw is higher than that of the 20mm long wheat straw. The suitable adding ratio is about 0.3%~0.4% in weight. The mixture with wheat straw in wet condition after soaking SH agent is better than that in dry condition. The strength of reinforced saline soil in inshore with wheat straw is higher than the original saline soil. Preliminary results show that wheat straw is suitable for using as the reinforcement.