摘要
从现行压实质量控制指标存在的问题出发,针对土石混合料颗粒组成和含水状态极不均匀的特点,为便于实际应用,引入密度干涉系数和最佳含水量系数对最大干容重的理论计算法进行了改进,探讨了用空隙率控制法和不同粗集料含量下改进的工地压实度控制方法,作为土石混合料压实质量控制标准的可行性。工程实例表明,两种方法能在一定程度上取得较好的控制效果,其中空隙率控制法不必进行室内大型击实试验,但仍需求出现场干密度。
Proceeded from the problems in the current compaction standard, directed against the uneven characteristics of grain composition and water content of earth rock mixture, this paper improves the computational method of the biggest dry density by using the coefficient of density and optimal moisture. This paper also studies the void ratio control method and the improved field compaction method under different coarse aggregate percentage, and discusses their feasibility being used as compaction control standard. An example shows that the two methods can achieve good results to some extent. When using the void ratio control method, a large indoor compaction test should not be done, but the field dry density must be calculated. 2 figs, 6 refs.
出处
《长安大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2006年第1期35-37,48,共4页
Journal of Chang’an University(Natural Science Edition)
关键词
道路工程
土石混合料
压实控制方法
空隙率
粗料含量
质量控制
road engineering
earth-rock mixture
compaction control method
void ratio
coarse aggregate pereentage
quality control
