掺生活垃圾焚烧飞灰的水泥稳定碎石性能研究

Effects of domestic waste incineration fly ash on the characterization of cement stabilized macadam

对不同飞灰掺量等量取代部分水泥的水泥稳定碎石进行了无侧限抗压强度试验、劈裂强度试验和干缩试验等研究了其强度特性和收缩特性。研究结果表明25%左右的飞灰掺量的水泥稳定碎石具有较好的路用性能,同时飞灰的掺入在一定程度上改善了水泥稳定碎石的干缩性能容易导致基层开裂等病害的难题。

The unconfined compressive strength test, splitting strength test and dry shrinkage test of cement stabilized macadam with different fly ash content replacing part of cement were carried out. The results show that the cement stabilized macadam with about 25% fly ash has better road performance, and the fly ash can improve the dry shrinkage performance of cement stabilized macadam to a certain extent, which is easy to lead to base cracking and other diseases.