摘要
结合二灰碎石的室内干缩和温缩试验,研究和分析了影响二灰碎石缩裂的主要因素。重点研究了二灰含量、二灰中石灰和粉煤灰的比例、碎石级配以及龄期对二灰碎石基层的缩裂的影响,并得出相关结论,便于实际工程采取相应工程手段,减少二灰碎石基层的收缩裂缝,提高路面工程质量。
In the light of dry shrinkage experiment and temperature shrinkage experiment of lime-flyash-macadam, this paper studies and analyzes the main reasons that influence shrinkage cracking of lime-flyash-macadam mixture, and concentrates on the research of the effects of lime-flyash content, propotion of lime and flyash in lime-flyash, macadam gradationa and age to shrinkage performance, and draws relevant conclusions which can be adopted in actual construction.
出处
《铁道建筑技术》
2006年第3期40-43,共4页
Railway Construction Technology
关键词
公路路面
二灰碎石基层
防缩裂
highway pavement
lime-flyash-macadam basement
dry shrinkage
