SH固沙剂固化沙体的强度特征

STRENGTH CHARACTERISTICS OF SAND FIXATED BY SH

SH为自行研制的新型高分子化学固沙材料,为现代沙漠工程所需。通过大量的室内试验,研究了SH固沙剂固化沙体的强度及相关特征。稍加压实的SH固化沙体,强度可达1 MPa以上;固化试样经20次冻融循环试验后强度损失小于25%,300 h间歇辐照后强度增加8.9%。结果表明:用SH固沙强度高,抗冻融和耐老化性能好,在沙漠固沙中有广阔的发展前景。

SH is a new polymeric material of chemical sand-fixation. It is necessary for this material to be used in modern desert engineering. In this paper,the compressive strength of SH-fixated sand and its characteristics are studied through a great deal of laboratory experimants. The strength may reach 1 MPa if the sample is compacted slightly. The percentage of streagth loss is lower than 25% after 20 times of freezing-thawing. The strength increases 8.9% after being shined for 300 hours of intermission radiation. The sand fixated with SH is not only of high strength,but also shows good resistance to freezing-thawing and aging. SH is an effective material for sand-fixation.