摘要
通过不同龄期的无侧限抗压强度、劈裂强度、抗压回弹模量及温缩等试验,研究了3种典型级配类型对水泥稳定碎石路用性能的影响。结果表明:骨架结构对早期强度起主要作用,结构密实性对后期强度影响较大;骨架结构越好,抗变形能力越强,长期抗压回弹模量越大;填料含量越多,温缩系数大,填料含量少,则温缩系数小。
Through test on unconfined compressive strength, splitting strength, compression resilience modulus and temperature contraction at different ages, this paper studies the influence of 3 typical graded cement stabilized gravel on pavement performance. The result indicates that framework structure has a major effect in early strength ; structure compaction has greater influence on later strength ; better framework structure will lead to stronger deformation resistance and greater long-term compression resilience modules; more filling content will lead to greater temperature contraction coefficient, less filling content will lead to smaller temperature contraction coefficient.
出处
《路基工程》
2010年第2期62-64,共3页
Subgrade Engineering
基金
陕西省交通科技项目(03-23K)
关键词
级配
水泥稳定碎石
粉煤灰
路用性能
影响
grading
cement stabilized gravel
flyash
pavement performance
influence