摘要
试验研究了无机改性掺和料对沸石调湿材料性能的影响,并根据扫描电子显微镜(SEM)观测数据和材料的吸附/解吸理论分析了沸石调湿材料的调湿机理.结果表明:无机改性掺和料掺量(质量分数)为15%～20%时,沸石调湿材料的抗压强度、耐水性和调湿性能均较优;改性掺和料与沸石反应生成了C-S-H凝胶和水化铝酸盐产物;沸石对空气中水分子的表面物理吸附、化学吸附和毛细孔道效应,使得沸石调湿材料能够自动调节湿度.
The effect of inorganic modified admixture on the performance of zeolite humidity-controlling materials was studied experimentally.The humidity-controlling mechanism of the zeolite humidity-controlling materials was investigated based on the analysis of scanning electron microscope(SEM)and the theory of moisture absorption/desorption of materials.The results show that the compressive strength,the softening coefficient and the humidity-controlling performance of the zeolite humidity-controlling materials are better when the content(by mass)of inorganic modified admixture is 15%20%.The modified admixture can react with zeolite to form C-S-H gel and hydrated aluminate products.The surface physical and chemical adsorption of water in the air and the capillary effect of the zeolite humidity-controlling materials makes the zeolite humidity-controlling materials be able to regulate the humidity automatically.
作者
胡明玉
刘章君
柯书俊
付超
樊财进
HU Mingyu;LIU Zhangjun;KE Shujun;FU Chao;FAN Caijin(School of Civil Engineering and Architecture,Nanchang University,Nanchang 330031,China;Key Laboratory for Ultra-low Energy Buildings of Jiangxi Province,Nanchang University,Nanchang 330031,China)
出处
《建筑材料学报》
EI
CAS
CSCD
北大核心
2018年第5期791-796,共6页
Journal of Building Materials
基金
国家自然科学基金资助项目(51362021)
江西省水利厅科技项目(KT201331)
关键词
沸石调湿材料
抗压强度
软化系数
平衡含湿率
吸放湿速率
zeolite humidity-controlling materials
compressive strength
softening coefficient
equilibrium moisture content
absorption and desorption rate
