水泥稳定碎石强度的影响因素分析

Discussion on Influence Factors of Cement- Stabilized Macadam Strength

通过室内试验,从混合料的三种不同级配组成(包括骨架密实型级配、悬浮密实型级配、骨架空隙型级配)、不同的延迟时间以及试件的成型条件(包括静力压实和旋转压实)等三个主要方面,测定水泥稳定碎石七天无侧限抗压强度,结果表明,对于同一种混合料,骨架密实型级配在三种级配中的强度最高,随着延迟时间的延长,试件的强度会降低,并对旋转压实成型试件进行了初步的研究,最后总结出控制其强度的具体措施。

Laboratory tests were carried out on cement- stabilized macadam seven days unconfined compressive strength test through three main aspects,namely,three different gradation of mixture( include:skeletal- dense structure gradation,suspend- dense structure gradation,framework- pore structure) and different delay time and molding process of specimen( include: static compaction and gyratory compaction). The result suggested that for the same mixture,skeletal- dense structure has the highest strength in the three kind,as the delay time extend,the strength of specimen would down load. Also this paper makes primary research on gyratory compaction,and concludes the specific measures to control the strength.