聚丙烯纤维和高效减水剂双掺对铁尾矿粉泡沫混凝土抗冻性能的影响  

The Study of Effects on the Resistance to Freezing-thawing of Foam Concrete with Iron Tailings Mixed with Polypropylene Fiber and Polycarboxylate Superplasticizer

作　　者：肖力光[1] 李杨[1] 张士停[1] 

机构地区：[1]吉林建筑大学材料科学与工程学院,长春130118

出　　处：《吉林建筑大学学报》2015年第3期1-4,共4页Journal of Jilin Jianzhu University

基　　金：国家"十二五"科技支撑计划项目(2011BAJ05B03);吉林省科技发展计划重大攻关项目(20130204009SF)

摘　　要：铁尾矿粉泡沫混凝土由铁尾矿粉、水泥、粉煤灰、高性能矿物掺合料、泡沫剂、聚丙烯纤维、聚羧酸系高效减水剂等制成.本实验研究了聚丙烯纤维和聚羧酸系高效减水剂双掺对铁尾矿粉泡沫混凝土抗冻性能的影响及其微观结构,实验结果表明,聚丙烯纤维和聚羧酸系高效减水剂双掺大大提高了铁尾矿粉泡沫的抗冻性能,使铁尾矿粉泡沫混凝土的孔微观结构有了明显的改善.Foam concrete with iron tailings is prepared by iron tailings, cement, fly ash, mineral admixtures with high performance, foaming agent, polypropylene fiber, polycarboxylate superplasticizer, et al. In this study, the influences on the resistance to freezing-thawing of foam concrete with iron tailings mixed with polypropylene fiber and poly-carboxylate superplasticizer were investigated, and its microstructure was observed. The results show that the resist-ance to freezing-thawing of foam concrete with iron tailings is greatly increased by adding polypropylene fiber and polycarboxylate superplasticizer, and the microstructure of pore in foam concrete is improved obviously.

关 键 词：铁尾矿粉综合利用 聚丙烯纤维 羧酸系高效减水剂 泡沫混凝土 

分 类 号：TU5[建筑科学—建筑技术科学]