柔性纤维对水泥稳定粒料基层的阻裂增韧机理分析

Analysis of Anti-Cracking And Tenacity Increasing Mechanism of Flexible Fiber Cement-Stabilized Material Semi-Rigid Base

利用断裂力学原理,分析了柔性纤维水泥稳定粒料基层中纤维的阻裂增韧机理,并进行了相关试验研究.表明柔性纤维水泥稳定粒料半刚性基层材料是一种具有优良抗裂、抗疲劳、抗收缩、抗冲击性能且韧性好的新型半刚性基层材料.该基层材料的应用将有效解决现行路面半刚性基层的早期开裂问题,大幅度延长路面结构的使用寿命,具有显著的经济价值和重要的社会意义.

In virtue of fracture mechanics, the authors analyzed the anti-cracking and tenacity increasing mechanism of flexible fiber in flexible fiber cement-stabilized material semi-rigid base, and carried out a relevant experimental study. The analysis and experimental study show that the flexible fiber cement-stabilized material is a new semi-rigid base with eminent anti- crack, anti-shrinkage, anti-fatigue, anti-impact performance and good tenacity. Application of this new style base will resolve the early age cracking of the existing bases effectively, improve the service-life of pavement structure impressively and have a notable impact on economic efficiency and social importance.