面向公路施工的温拌沥青混合料配合比设计与效果评价  

Design and Effect Evaluation of Mixture Ratio of Warm Mixed Asphalt for Highway Construction

作　　者：刘海儒 LIU Hai-ru(Hebei Chengde Chengchi Expressway Service Center,Chengde 067000,China)

机构地区：[1]河北承德承赤高速公路服务中心,河北承德067000

出　　处：《工程建设与设计》2025年第6期190-192,共3页Construction & Design for Engineering

摘　　要：针对温拌沥青混合料配合比没有确定的统一标准,影响实际工程中温拌沥青应用效果的问题,论文对沥青延度、针入度以及黏度等指标进行系统的测试与分析,根据分析结果确定合适的混合料配合比,并从温度、搅拌速率、黏度3个方面对拌和效果进行评价。结果表明,温拌沥青的最佳油石比为5.2%,矿粉比为20.5∶40.5∶36.5∶3.0,且有机降黏型温拌剂的加入,有效改善了沥青混合料的施工性能。Aiming at the problem that there is no uniform standard for the mixture ratio of warm mixed asphalt,which affects the application effect of warm mixed asphalt in practical projects,this paper systematically tested and analyzed the asphalt densification,penetration and viscosity,and determined the appropriate mixture ratio according to the analysis results,and evaluated the mixing effect from three aspects:temperature,stirring rate and viscosity.The results show that the best oil-stone ratio of warm mixed asphalt is 5.2%,and the ore powder ratio is 20.5∶40.5∶36.5∶3.0.The addition of organic viscosity-reducing type temperature mixing agent effectively improves the construction performance of asphalt mixture.

关 键 词：公路 温拌沥青 配合比 效果评价 马歇尔试验 

分 类 号：U414[交通运输工程—道路与铁道工程]