鄂西赤铁矿尾矿渣免烧免蒸砖的研究  

EXPERIMENTAL STUDY OF USING TAILINGS OF HEMATITE IN WESTERN HUBEI TO PRODUCE NON-BURNED AND NON-AUTOCLAVED BRICKS

作　　者：张婷婷[1] 张一敏[1] 陈铁军[2] 刘涛[2] 陈永亮[2] 陈章[1] 

机构地区：[1]武汉理工大学资源与环境工程学院,武汉430070 [2]武汉科技大学资源与环境工程学院,武汉430081

出　　处：《工业建筑》2011年第9期81-84,107,共5页Industrial Construction

基　　金："十一五"国家科技支撑计划重点项目(2007BAB15B02)

摘　　要：利用鄂西赤铁矿尾矿为主要原料制备免烧免蒸砖,对赤铁矿尾矿渣与建筑标准砂的用量进行配比试验,并考察成型水分、成型压力和外加剂用量对制品抗压强度的影响。试验结果表明,在尾矿渣掺量为78%、标准砂10%、水泥10%和石膏2%的配合比下,且成型水分15%、成型压力20 MPa和外加剂三乙醇胺0.01%的最佳条件下,制备的免烧免蒸砖制品抗压强度达到15.9 MPa,可满足JC/T 422—2007《非烧结垃圾尾矿砖》建筑材料强度要求,提高了鄂西赤铁矿尾矿渣的综合利用程度。The ratio of hematite tailings from western Hubei Province, as the main material in preparation of nonburned and non-autoclaved bricks, to standard building sands were studied in this paper. In addition, the effects of forming water contents, forming pressures and mixture contents on compressive strength were also investigated. The results showed that the non-burned and non-autoclaved brick with compressive strength at 15.9 MPa could be prepared in the optimum condition of 78% hematite tailing, 10% the standard building sand, 10% cement, 2% gypsum, 15% molding water, 20 MPa molding pressure, and 0. 01% triethanolamine. The strength of product meeted the standard of JC/T422--2007 and this technology could promote the comprehensive utilization of the hematite tailings from western Hubei Province.

关 键 词：鄂西赤铁矿尾矿渣 免烧免蒸砖 压制成型 外加剂 

分 类 号：TU522.1[建筑科学—建筑技术科学]