掺聚丙烯纤维水泥粉煤灰稳定碎石基层的应用研究

Study on Application of Cement and Flyash Stabilized Crushed-Stones Joined with Polypropylene Fibers

水泥粉煤灰稳定碎石基层具有良好的性能,但其开裂所导致的路面开裂问题日益突出。对掺加聚丙烯前后的水泥粉煤灰稳定碎石的力学性能进行对比分析,并对其抗裂性能进行研究。结果表明,聚丙烯纤维对水泥粉煤灰稳定碎石的抗裂和水稳性能改善效果明显。因此,在水泥粉煤灰稳定碎石中掺入一定比例的纤维材料,是改善路用性能并减少裂缝的有效措施。

The cement - fly ash stabilized aggregate （ CFSC ） base course has better performance, however, the cracking of the pavement caused by its cracking has become increasingly prominent, a contrastive analysis of the mechanical property has been made for the cement -fly ash stabilized aggregate between after and before adding polypropylene fibers and their anti - crack performance is researched. The results show that the effect of the polypropylene fibers on the crack resistance and water stability of the CFSC is obvious. CFSC joined with polypropylene fibers are the effective measures to improve the performance and reduce the cracks.