论文部分内容阅读
通过正交设计试验研究了粉煤灰掺量、矿粉掺量、聚丙烯纤维掺量以及再生粗骨料掺量这4个水平因素对再生混凝土抗冻性的影响,对比分析其质量损失率和相对动弹性模量,得出满足良好抗冻性的最优配合比.同时对最优配合比与普通混凝土(基准组)及全再生粗骨料混凝土(对比组)进行应力-应变曲线分析,检验优选结果的合理性.
The effects of four levels of fly ash content, mineral powder content, polypropylene fiber content and recycled coarse aggregate content on the frost resistance of recycled concrete were studied by orthogonal design. The mass loss rate And the relative dynamic elastic modulus, the best mixture ratio to meet the good frost resistance was obtained.At the same time, the stress-strain curve of the optimal mixture ratio was compared with the normal concrete (the reference group) and the fully recycled coarse aggregate concrete (the comparison group) , Test the validity of the preferred result.