剑麻纤维改性水泥稳定碎石收缩性能研究

研究掺入不同比例剑麻纤维的水泥稳定碎石材料的干缩性能和温缩性能,结果表明：水泥稳定碎石的干缩系数和温缩系数均随剑麻纤维掺量的增加逐渐降低。因此将剑麻纤维水泥稳定碎石用于公路路面基层,必将提高基层的收缩性能,减少塑性收缩开裂,达到延长路面使用寿命的目的。

Shrinkage Property of Cement-Stabilized Macadam Modified by Sisal Fibre

The paper studies the dry shrinkage property and temperature shrinkage property of cement-stabilized macadam materials with different proportion of sisal fibre. The result shows that dry shrinkage property coefficient and temperature shrinkage property coefficient gradually lower with the increasing of sisal fibre. Therefore if cement-stabilized macadam with sisal fibre is used in highway base, the shrinkage performance of base will be advanced, and the plastic shrinkage cracking will be reduced, thus the object of prolonging the service life of pavement will be achieved.