期刊论文

Study of Mixing and Shaping Technology for Warm-recycled Asphalt Mixture

中文

公路

0451-0712

2019

64

7

41-45

湖北省交通运输厅科技项目,项目编号2017-004；

本校为第一机构

文中利用正交试验对温拌再生沥青混合料的拌和成型工艺进行试验研究。令再生剂和温拌剂的类型和剂量等不变,以旧料的掺加比例、旧料的预热温度、混合料的拌和方案和击实温度为试验因素,模拟路面温拌再生施工的各种拌和成型情况设计了L9(3^4)正交表分别进行马歇尔试验。对试验结果进行极差分析后,发现对温拌再生沥青混合料性能影响最大的因素为旧料掺加比例和击实温度,并建议温拌再生沥青混合料应在旧料掺加比例为30%、旧料预热温度为130℃、"中"拌和方案、击实温度为130℃等条件下拌和成型。最后分析了各因素对各指标的影响规律及原因。

In this paper,mixing and shaping technology for warm-recycled asphalt mixture is studied by means of orthogonal experiment.The type and dosage of regenerant and warm-mixed agent are maintained unchanged,and the proportion of old mixture,the heating temperature of old mixture,the mixing scheme of asphalt mixture and compaction temperature are selected as test factors.The variety of mixing and shaping technology in warm-recycled asphalt mixture is simulated by designing a L9(3^4)orthogonal table for Marshall tests.After range analysis,it is found...