粉煤灰综合利用 2016N0.4 FLY ASH COMPREHENSIVE UTILIZATION 试验与应用 大掺量粉煤灰再生混凝土配合比试验研究* Experimental Study on Mix Proportion Design of High Volume Fly Ash Recycled Concrete 陈建国12，凌贤宗1.2 (1.广西壮族自治区水利科学研究院，南宁530023；2.广西水工程材料重点实验室培育基地，南宁530023) 摘要：试验研究了水胶比、粉煤灰掺量和再生粗骨料取代率对大掺量粉煤灰再生混凝土抗压强度的影响.正交 试验结果表明，大掺量粉煤灰再生混凝土7d、14d、28d、56d、90d抗压强度的最主要影响因素为粉煤灰掺量，其次为水胶 比及再生粗骨料取代率，通过正交设计可以得出大掺量粉煤灰再生混凝土的配合比设计方法. 关键词：大掺量粉煤灰再生混凝土；正交设计；配合比；抗压强度 中图分类号：TU528.2 文献标识码：A文章编号：1005-8249(2016)04-0014-05 Chen Jianguo.2 Ling Xianzong.2 (1.Hydraulic Research Institute of Guangxi Nanning 530023; 2.Guangxi Key Laboratory cultivation base construction of Water Engineering Materials Nanning 530023) Abstract:The influence of the amount of water binder ratio fly ash content and replacement rate of recycled coarse aggregate on the pressive strength of high volume fly ash recycled concrete were studied.The results of orthogonal experiments showed that the main factor affecting the 7d 14d 28d 56d 90d pressive strength of concrete were the content of fly ash followed by water binder ratio and replacement rate of recycled coarse aggregate.Through the orthogonal design the mix proportion design method of high volume fly ash recycled concrete was obtained. Key Words:high volume fly ash recycled conerete;orthogonal design;mix proportion design;pressive strength 再生混凝土是指将废弃的混凝土经破碎、筛分、清 聚合物乳液、盐酸及硫酸)等改善再生骨料表面状态 洗后形成的再生集料，部分或全部的代替天然集料，再 对再生混凝土界面过度区进行强化[-.上述方法虽 与水、水泥、砂子按一定的比例拌合，凝结硬化后形成 然都不同程度提高了再生混凝土强度，但存在不足之 的新混凝土.但由于废弃混凝土破碎生成的再生 处...
大掺量粉煤灰再生混凝土配合比试验研究.pdf
