高湿环境下可溶盐对脱硫石膏板变形的影响研究

关键字：高湿环境下,可溶盐,脱硫石膏板

（1.东华理工大学 建筑工程学院，江西 南昌  330013；2.华东交通大学 土木建筑学院，江西 南昌  330013；
3.同济大学先进土木工程材料教育部重点实验室，上海  201804）

    摘要：运用DOE全因子实验设计方法，研究了Na+、Mg2+、Cl-和K+等4种常见可溶盐离子在高湿环境下对脱硫石膏板下垂变形的影响，并利用DOE实验分析方法对其影响的显著性进行研究。结果表明：高湿环境下K+、Mg2+和Na+均为脱硫石膏板下垂变形的显著因素，其中Mg2+和Na+会大幅增加其下垂挠度，而K+对含盐脱硫石膏板下垂变形则有明显的抑制作用，具体表现在K+明显降低脱硫石膏板因添加Na+、Mg2+可溶盐离子所引起的下垂变形。
    关键词：脱硫石膏板；吸湿下垂；全因子实验设计；可溶盐离子
    中图分类号：TU574；TQ177.3+78        文献标识码：A        文章编号：1001-702X（2017）11-0075-05
 

Analysis of impacts of soluble salts on the deformation of desulfurized gypsum board in high moisture environment
HAN Zhen1，2，3，WEI Yongqi1，3，YAO Wu3，ZHOU Shuangxi2
（1.College of Architecture Engineering，East China Institute of Technology，Nanchang 330013，China；
2.School of Civil Engineering and Architecture，East China Jiaotong University，Nanchang 330013，China；
3.Key Laboratory of Advanced Civil Engineering Materials，Ministry of Education，Tongji University，Shanghai 201804，China）

    Abstract：This thesis adopts full factorial design of the DOE（design of experiment） to explore the effects of four soluble salt ions（Na+，Mg2+，Cl- and K+） on the deformation of desulfurized gypsum board in high moisture environment，and the effect of each ion was analyzed by DOE analysis method. The results indicate that K+，Mg2+ and Na+ are significant factors affecting the sagging deformation of the desulfurized gypsum board in high moisture environment，in which Mg2+ and Na+ ions greatly will increase their sagging deflection，while K+ has the obvious inhibitory action on the deformation of desulfurized gypsum board，which is represented in reducing the sagging deformation of desulfurized gypsum board caused by adding of Na+ and Mg2+ ions.
    Key words：desulfurized gypsum board，deformation with moisture，full factorial design，soluble salt ions