纤维沥青混合料的拌和成型工艺研究  

Research on Mixing and Shaping Technology of Fiber Bituminous Mixture

作　　者：程英伟[1] 何晓鸣[1] 

机构地区：[1]武汉工业学院土木工程与建筑学院,武汉市430023

出　　处：《公路》2012年第4期54-58,共5页Highway

基　　金：湖北省教育厅科技项目;项目编号20101702;湖北省建设科技计划项目;项目编号鄂建文[2010]210号037;住房和城乡建设部科技项目;项目编号2011-K5-5

摘　　要：利用正交试验对剑麻纤维沥青混凝土混合料的拌和成型工艺进行研究。在固定配合比的前题下,以拌和方案、沥青加热温度、集料加热温度和成型温度为试验因素,模拟路面施工的各种拌和成型情况设计了L9正交表分别进行马歇尔试验。运用极差分析法对试验结果进行分析,确定了纤维沥青混合料拌和成型的优选方案为"同步法拌和+沥青加热温度为175℃+集料加热温度为206℃+成型温度为165℃"。最后分析了几种试验因素对试验指标的影响机理。In this paper,mixing and shaping technology of bituminous concrete mixture with sisal fiber is researched by orthogonal experiment.Under a fixed mix proportion,mixing solutions,asphalt hea-ting temperature,aggregate heating temperature and shaping temperature are selected as test factors.The variety of mixing and shaping in pavement construction is simulated by designing a L9 orthogonal table for Marshall tests.Range Analysis Method is used to analyze test results,and then the optimal scheme of mixing and shaping for fiber bituminous concrete mixture is determined.The optimal scheme is ＂synchronization method of mixing＋asphalt heating temperature of 175℃＋aggregate heating temperature of 206℃＋shaping temperature of 165℃＂.Last,the influence mechanism of test factors on test indicators is analyzed.

关 键 词：纤维沥青混合料 正交试验 拌和成型工艺 

分 类 号：TU535[建筑科学—建筑技术科学]