再生矿粉粗骨料混凝土正交配合比试验研究  

Orthogonal Proportion Experimental Study of Regenerated Mineral Powder Coarse Aggregate Concrete

作　　者：张婷[1] 秦拥军[2] 李祥[2] 郭尧[2] 

机构地区：[1]新疆工程学院,新疆乌鲁木齐830091 [2]新疆大学建筑工程学院,新疆乌鲁木齐830047

出　　处：《建材技术与应用》2015年第3期15-19,共5页Research and Application of Building Materials

基　　金：新疆维吾尔自治区自然科学基金资助项目(2012211A005);国家级大学生创新实验项目(201310755021);新疆工程学院自然科学课题(2013xgy091412)

摘　　要：为探究再生矿粉粗骨料混凝土中矿粉的作用,对采集的废弃混凝土进行破碎、筛分,得到再生粗骨料,试验研究了矿粉对再生混凝土性能的影响。依据GB/T 25177—2010《混凝土用再生粗骨料》,将不同来源的再生粗骨料分为Ⅰ类和Ⅱ类,分别进行了16组正交试验,运用极差分析讨论了水灰比、再生骨料取代率及矿粉掺量,对再生粗骨料混凝土工作性能及立方体抗压强度的影响,并采用功效系数法进行了多指标正交分析,得到了适合C30再生混凝土的配合比。To explore the role of mineral powder in renewable mineral powder coarse aggregate concrete, the author crushes,screens the waste concrete and gets the renewable coarse aggregate Experimental study on the influence of mineral powder on the properties of regenerated concrete is then conducted. According to GB/T 25177—2010 The Use of Regenerated Coarse Aggregate Concrete,the regenerated coarse aggregate of＆amp;nbsp;different sources is divided into class Ⅰ and class Ⅱ. 16 groups of orthogonal tests have been carried out respectively,using range analysis to discuss the water-cement ratio,regenerated aggregate replacement rate, mineral powder mixing amount,and its influence on the performance and cube compressive strength of regenerated coarse aggregate concrete,and the efficacy coefficient method is used for the multi - target orthogonal analysis,then the best C30 concrete mixture ratio is obtained.

关 键 词：矿粉 再生混凝土 配合比设计 正交试验 

分 类 号：TU528[建筑科学—建筑技术科学]