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为研究不同水泥掺量水泥稳定碎石收缩性的问题,通过对3%、4%和4.5%(质量分数)3种剂量的水泥稳定碎石进行干缩、温缩室内试验,得到不同水泥掺量水泥稳定碎石的干缩系数、温缩系数和含水率随时间的变化曲线.研究结果表明:水泥掺量是影响基层材料收缩性能的主要因素;水分和温度的控制也能减少收缩,抑制反射裂缝.该结果为防治反射裂缝的研究提供依据.
In order to study the shrinkage of cement-stabilized macadam with different cement content, three kinds of cement stabilized macadam with 3%, 4% and 4.5% (mass fraction) The shrinkage coefficient, the shrinkage coefficient and the moisture content of the cement-stabilized macadam varied with time.The results show that the cement content is the main factor that affects the shrinkage performance of the base material, and the control of water content and temperature can also reduce the shrinkage, Reflection cracks.The results provide the basis for the study of preventing and controlling reflection cracks.