马士宾,侯立成,刘月钊,张俊飞

• 1:河北工业大学土木与交通学院

摘要(Abstract)：

旧水泥路面快速维修是公路养护人员面临的技术难题，而超薄加铺是一种低成本、高效率的维修方案。为了得到超薄水泥基加铺材料的最优配合比，通过对水泥基胶凝材料体系的强度发展规律和早期水化机制进行分析，确定基准配合比。以水胶质量比、辅助胶凝材料替代率和胶砂质量比为自变量，采用三因素11组试验的A最优混合设计法(311-A最优混合设计法)对配合比进行优化设计，分析自变量对设计指标抗折强度、抗压强度以及流动度的影响。通过模拟计算得到3种配合比组合，对3种组合从经济性、技术性和工作性进行综合分析。结果表明：基于311-A最优混合设计法得到的材料最优配合比的水胶质量比为0.32,辅助胶凝材料替代率为15%,胶砂质量比为1.0,力学强度和流动度的预测值与基于室内试验的实测值误差在5%以内。

关键词(KeyWords)： 水泥基材料;超薄加铺;配合比;最优混合设计;水化机制

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目,编号：52208240;; 天津市交通运输科技发展项目计划,编号：2022-01

作者(Author): 马士宾,侯立成,刘月钊,张俊飞

DOI: 10.13732/j.issn.1008-5548.2023.06.003

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