水泥粉煤灰稳定碎石基层路用性能研究

A Study on Performance of Cement-Flyash Stabilized Aggregate

基于水泥稳定碎石抗裂性能不足 ,利用粉煤灰的填充作用和火山灰效应 ,按水泥稳定碎石基层中水泥剂量的 30 %、4 0 %、5 0 %、6 0 %和 70 %等量替代水泥的方法成型了大量水泥粉煤灰稳定碎石基层的试件 ,并进行路用性能试验研究。结果表明 ,粉煤灰按 30 %等量取代的水泥稳定碎石基层具有良好的路用性能 ,尤其是抗裂性能。

Considering that cement stabilized aggregate exists the shortage of crack resistance in aspects, cement stabilized aggregate mixed with different dosage of fly-ash are conducted in a laboratory. The test results show that cement stabilized aggregate containing 30% dosage of fly-ash has better road performance, especial anti-cracking performance. Finally, the mechanism study on the road performance of cement-flyash stabilized aggregate are conducted by using EMS.