绿色高性能混凝土正交试验研究  

Orthogonal Experiment of High-performance Concrete

作　　者：陈剑毅[1] 胡明玉[2] 刘文华[1] 罗靓[1] 

机构地区：[1]江西理工大学南昌校区建筑与资源工程系,南昌330013 [2]南昌大学建筑工程学院,南昌330031

出　　处：《硅酸盐通报》2014年第9期2195-2199,共5页Bulletin of the Chinese Ceramic Society

基　　金：江西理工大学科研基金项目资助(NSFJ2014-G37)

摘　　要：采用粉煤灰、矿渣、沸石和硅藻土作为混凝土掺合料,在自然养护和复合盐冻融环境下测试混凝土试块的抗压强度。通过混凝土配合比的正交试验,分析了有关因素对该高性能混凝土的影响和效果,验证了这四种矿物掺合料都具有很好的活性,可以作为掺合料配制高性能混凝土。研究发现:在复合盐冻融环境下,掺硅藻土和沸石的混凝土耐久性要优于掺粉煤灰和矿渣的混凝土,本实验中最优组合为A2B2C3D2。硅藻土的最佳掺量还可以适当增加,掺量修正后的混凝土符合高性能的要求。Using fly ash,slag,diatomite and zeolite as mineral admixtures,concrete compressive strength is tested in compounded salt attack and cycle of freeze-thaw environment. Through the concrete orthogonal experiment,the paper analyzed the effects and results of the relevant factor on this concrete,and verified that four kinds of mineral admixture all have good activity,can be used as admixture of high performance concrete. Results show that： in compounded salt attack and cyclic freeze-thaw environment,concrete durability using diatomite and zeolite as mineral admixtures is better than that using fly ash and slag,the A2B2C3D2 is the more excellent combination. The diatomite ＇ content can be increased properly,improving concrete is accord with high-performance.

关 键 词：混凝土 正交试验 矿物掺合料 复合盐冻融 

分 类 号：TU528[建筑科学—建筑技术科学]