无熟料污泥灰基胶凝材料研制  

Development of sludge ash clinker-free cementitious materials

作　　者：胡家齐 孙家瑛[1,2] HU Jia-qi;SUN Jia-ying(Department of Civil Engineering,Shanghai University,Shanghai 200444,China;Ningbo Institute of Technology,Zhejiang University,Ningbo 315000,Zhejiang,China)

机构地区：[1]上海大学土木工程系,上海200444 [2]浙江大学宁波理工学院,浙江宁波315000

出　　处：《矿冶》2019年第6期60-65,共6页Mining And Metallurgy

基　　金：“十二五”国家科技支撑计划项目（2015BAL02B03）;浙江省自然科学基金资助项目（Y13E080050）

摘　　要：用少量碱性化合物和铝酸化合物作为复合激发剂激发污泥灰的活性,按一定比例再加入脱硫石膏、矿渣及粉煤灰混合,制成一种新型的无熟料胶凝材料。结果显示,所研制胶凝材料的各种基本性能符合32.5复合水泥的指数指标。首先通过试配选定各组分的掺量范围,然后采用正交试验设计,分析各组分掺量改变对强度的影响,并选定初步配比,最后基于胶凝材料的物理和力学性能,选择最优配比,并深入探讨了所制胶凝材料的其他性能。A small amount of alkaline compounds and aluminate compounds were mixed and used as compound activator to activate the activity of sludge ash.While desulfurization gypsum,slag and fly ash were added in a certain proportion to make a new type of clinker-free cementitious materials.The results show that the basic properties of the cementitious material accord with the index of 32.5 composite cement.Firstly,the mixing range of all materials were selected through trial mixing.Then the orthogonal test design was adopted to analyze the influence of each component content change on the strength of cementitious materials,and the preliminary mix ratio was selected.Finally,the optimal ratio was selected based on the physical and mechanical properties of the cementitious materials,and the other properties of the cementitious materials were further studied.

关 键 词：污泥灰 胶凝材料 正交试验 力学性能 

分 类 号：TU528[建筑科学—建筑技术科学]