拌和条件对热再生沥青混凝土性能的影响研究  

Influence of Mixing Conditions on Performance of Hot Recycled Asphalt Concrete

作　　者：周滔[1] ZHOU Tao

机构地区：[1]安徽交通职业技术学院土木工程系,安徽合肥230051

出　　处：《安徽职业技术学院学报》2021年第4期17-22,共6页Journal of Anhui Vocational & Technical College

基　　金：安徽省教育厅2019年度安徽高校自然科学研究重点项目“拌和条件对热再生沥青混凝土指标的影响”(KJ2019A1073)。

摘　　要：在级配、旧回收料掺量已定的情况下,对热再生沥青混凝土的拌和时间、投料顺序、拌和流程等方面进行室内试验,通过对拌和成型后的试样进行外观判断及相关试验检验该沥青混凝土的路用性能,结果发现,热再生沥青混凝土在拌和过程中,将原生料和再生料分批次投入,并将新掺加的沥青根据油石比的比例分开掺加拌和效果更好。When the gradation and the content of old recycled materials have been determined,indoor tests are carried out on the mixing time,feeding sequence and mixing process of hot recycled asphalt con⁃crete.The road performance of the asphalt concrete is tested through the appearance judgment and relevant tests on the samples after mixing and molding.It is concluded that in the mixing process of hot recycled as⁃phalt concrete,it is better to put the raw materials and recycled ones into batches,and add the newly added asphalt separately according to the proportion of asphalt aggregate ratio.

关 键 词：厂拌热再生沥青混凝土 拌和时间 拌和流程 路用性能 

分 类 号：TU535[建筑科学—建筑技术科学]