再生粗骨料模型混凝土轴心抗压性能试验研究
DOI:
https://doi.org/10.70693/cjst.v1i1.792Keywords:
再生粗骨料；再生混凝土模型化；力学性能；应力-应变特性Abstract
再生混凝土粗骨料中由于含有残余砂浆，因其力学性能和材料性能的不同导致再生混凝土的材料性能与普通混凝土有很大区别。在本文开发的六相再生粗骨料模型混凝土（Modeled Recycled Coarse Aggregate Concrete）当中，除再生粗骨料模型（Modeled Recycled Coarse Aggregate）的取代率外，MRCA排列方式以及旧砂浆覆盖率对MRCAC的应力应变特性的影响较为明显，针对旧砂浆覆盖率对MRCAC材料本构关系的影响情况的研究较少，为了从内力传递的角度对MRCAC本构关系变化进行研究，引入了MRCA矩阵式排列方式以排除内力传递不规则的因素。本章围绕18组MRCAC在抗压性能进行试验分析，根据本文试验数据研究MRCA排列方式、MRCA取代率以及旧砂浆覆盖率对MRCAC的破坏形态和立方体抗压强度的影响规律。
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