造纸白泥-页岩-煤矸石新型混凝土掺合料性能研究  

Study on Concrete Admixture Produced by Lime Mud, Shale and Coal Gangue as Raw Materials

作　　者：刘哲益[1] 刘来宝[1] 徐光亮[1] 张礼华[1] 李浩[1] 

机构地区：[1]西南科技大学四川省非金属复合与功能材料重点实验室-省部共建国家重点实验室培育基地,四川绵阳621010

出　　处：《非金属矿》2013年第6期18-21,共4页Non-Metallic Mines

基　　金：国家科技支撑计划项目(2011BAA04B04);四川省教育厅科研重点项目(11ZD1002)

摘　　要：采用热激活法对造纸白泥-页岩-煤矸石进行改性,开发出一种新型混凝土掺合料,并研究了其对混凝土性能的影响。结果表明,新型掺合料在混凝土中掺量为20%时,未对混凝土早期力学性能产生负面影响,后期强度还较基准试样有一定程度提高。新型掺合料混凝土具有较好的减水剂适应性和耐久性。A new type of concrete admixture was manufactured by lime mud, shale and coal gangue through thermal activation. The impact of the new concrete admixture on the properties of concrete was studied. The results showed that the optimal ratio of substituted cement dosage was 20%, there was no negative effects on the early age mechanical behavior of the concrete by adding into this new admixture, and the mechanical strength had been improved at the later age compared with one without admixture. The concrete made by this new admixture has good adaptability with water reducing agent and good durability.

关 键 词：造纸白泥 混凝土掺合料 页岩 煤矸石 

分 类 号：TU528.041[建筑科学—建筑技术科学] X793[环境科学与工程—环境工程]