粉煤灰综合利用 2016no.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,凌贤宗 (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 ,Ling Xianzong ( 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 ...
大掺量粉煤灰再生混凝土配合比试验研究.pdf
