摘要
为研究适合于GTM旋转成型方式的橡胶沥青混合料的级配特点及路用性能,基于GTM物理力学设计方法进行橡胶沥青混合料的配合比设计,对连续级配和4.75 mm通过率不同的3种间断级配分别进行系统研究,主要依据力学性能参数确定其最佳沥青用量。在此基础上,对比研究不同成型方式下橡胶沥青混合料试件的线膨胀情况,认为橡胶沥青混合料基于GTM设计方法可以采用连续级配,而且,通过综合对比路用性能,认为GTM方法更加适合于连续级配混合料的设计。
In order to research the gradations and road performance of the rubber-asphah mixture suitable for GTM rotational motdding, the mixing ratio of rubber-asphalt mixtures is designed according to GTM physical mechanics. Systematic research on the continuous-graded and three kinds of gap-graded mixtures with different through rate of 4. 75mm is carried out respectively. Without considering the volume parameters ,and the optimum asphalt volume is made out only aeeording to the physical and mechanical parameters,including GSI and GSF. On this basis,the linear expansion of the rubber-asphalt designed in different moulding ways is studied contrastively, and it is proved that the continuous-graded rubber-asphalt mixtures can be used, according to GTM design method. Through comprehensive and contrastive evaluation of the road performance, it is effectively proved that GTM design method is more appropriate to design the continuous-graded rubber-asphalt mixtures.
出处
《重庆交通大学学报（自然科学版）》
CAS
北大核心
2009年第4期715-719,共5页
Journal of Chongqing Jiaotong University(Natural Science)
关键词
GTM
橡胶沥青混合料
线膨胀
性能
GTM
rubber-asphah mixture
linear expansion
performance
作者简介
李正中（1984-），男，河南南阳人，硕士研究生，主要从事沥青路面材料试验研究方面的工作。E—mail：lizhengzhonglzzl@163．com。
