期刊论文

Effect of Water Cement Ratio on Properties of Magnesium Inorganic Light Materials

Wu, Yiqiang(wuyq0506@126.com)

中文

材料导报

1005-023X

2018

32

14

2370-2375

10.11896/j.issn.1005-023X.2018.14.009

“十二五”国家科技支撑计划课题（2012BAD24B03） 林业专利产业化引导项目（2016-11） 国家林业公益性行业科研重大专项（201204704） 湖南省科技人才计划项目（2016TP1013） 湖南省科技创新平台（2016RS2010）

本校为第一且通讯机构

以镁系胶凝材料为主料,双氧水为发泡剂,二氧化锰为激发剂,硬脂酸钙为稳定剂,聚丙烯酰胺为增稠剂,通过化学发泡法制备内部含有大量密闭气孔的镁系无机轻质材料。探讨了水灰比(镁盐水用量与氧化镁粉比率)对镁质无机轻质材料表观密度、压缩强度、弯曲强度、孔结构及耐水性的影响规律。实验结果表明,水灰比不仅影响镁系无机轻质材料的孔结构和发泡成型,对晶体结构也有较大影响。随着水灰比增大,浆体稠度降低,镁系无机轻质材料的表观密度减小,孔结构形态逐渐得到改善,力学强度和耐水性则是先增大后减小。在水灰比为1.4时,强度相峰值最大,镁系无机轻质材料压缩强度和弯曲强度最大,耐水性最佳,同时平均...

Magnesium inorganic light material containing a large number of closed pores inside were prepared by chemical foaming process, in which magnesium based cementing material as raw material, hydrogen peroxide as foaming agent, manganese dioxide as activator, calcium stearate as stabilizer and polyacrylamide as thickener. The effect of water cement ratio (the ratio of magnesium salt and magnesium oxide) on the apparent density, compression strength, bending strength, pore structure and water resistance of magnesium inorganic light materials were st...