Research on water resistance and mechanism of magnesium oxychloride cement foam concrete with compound modifiers

被引：0
作者：
Wang, Luming [1 ,2 ]
Feng, Koubao [2 ]
Chen, Xuefei [2 ]
机构：
[1] College of Materials Science and Engineering, Nanjing University of Technology, Nanjing
[2] College of Materials Engineering, Yancheng Institute of Technology, Yancheng
来源：
Gongneng Cailiao/Journal of Functional Materials | 2015年 / 46卷 / 12期
关键词：
Calcium stearate; Compound modification; Compressive strength; MOC foam concrete; Water resistance;
D O I：
10.3969/j.issn.1001-9731.2015.12.002
中图分类号：
学科分类号：
摘要：
On the basis of the research on the modification on magnesium oxychloride cement (MOC) foam concrete with phosphoric acid and calcium stearate respectively, then phosphoric acid, calcium stearate and styrene-acrylic emulsion were adopted to improve the water resistance of MOC foam concrete. The results show that, while adding 1wt% phosphoric acid and 1wt% calcium stearate to the foam concrete, comprehensive modification effect of MOC foam concrete were better than the one only modified by calcium stearate or phosphoric acid; Admixed with 1% styrene-acrylic emulsion, water resistance and compressive strength of MOC foam concrete were further improved. Its softening coefficient were up to 0.83. Compressive strength of specimen cured 3, 7 d and soaked in water 7 d could reach 1.40, 1.48 and 1.23 MPa respectively, which were approaching and better than the blank. Comprehensive effect of compound modification is superior. ©, 2015, Journal of Functional Materials. All right reserved.
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页码：12009 / 12013
页数：4
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