粉煤灰再生粗骨料多孔混凝土强度影响因素研究

再生混凝土是当前固体废弃物再利用的一种前沿技术，能够有效提升固废资源的利用率，缓解建筑垃圾带来的环境压力。本文为研究再生粗骨料多孔混凝土强度影响因素，在水泥中添加部分粉煤灰材料，通过室内单轴抗压强度试验探讨了不同再生粗骨料含量、不同水胶比以及不同骨胶比下再生混凝土强度的变化规律。结果表明，随着粗骨料的增加，混凝土抗压强度出现了明显增长，但当达到一定含量时混凝土性能会出现明显降低。此外，骨胶比和水胶比的增加，会使再生粗骨料多孔混凝土抗压强度出现降低的趋势。研究成果可为相关混凝土工程提供参考。

英文摘要:

Recycled concrete is a cutting-edge technology of solid waste reuse,which can effectively improve the utilization rate of solid waste resources and alleviate the environmental pressure caused by construction waste.In order to study the influencing factors of recycled coarse aggregate porous concrete strength,some fly ash materials are added to the cement.Through the indoor uniaxial compressive strength test,the variation law of recycled concrete strength under different recycled coarse aggregate content,different water binder ratio and different bone binder ratio are discussed.The results show that with the increase of coarse aggregate,the compressive strength of concrete increases significantly,but when it reaches a certain content,the performance of concrete will decrease significantly.In addition,the increase of bone cement ratio and water cement ratio will reduce the compressive strength of recycled coarse aggregate porous concrete.The research results can provide reference for relevant concrete engineering.

查看全文查看/发表评论下载PDF阅读器

关闭