石膏泡沫混凝土的性能研究.pdfVIP

学兔兔 全国中文核心期刊 新癯建巍 中国科技核心期刊 石胃泡沫混凝土硇胜鹾研究 向仁科 ，石宗利 ，谢建海 (1．兰州交通大学 机电工程材料系，甘肃 兰州 730070； 2．湖南大学 复合材料研究所，湖南 长沙 4l0082) 摘要：以脱硫石膏为基材，通过添加矿渣、水泥和自制添加剂改性，外掺少量生石灰、促凝剂和发泡剂制备／1 同密度等级的石膏泡 沫混凝土。研究了不同外加剂掺量对胶凝材料初、终凝时间和力学性能的影响，测试_『石膏泡沫混凝土的导热系数，阐述了产品的热工 性能。测试结果表明，产品的强度高、导热系数低，综合性能优良，有利于工业副产石膏的资源化利用和提高节能减排水平。 关键词：石膏泡沫混凝土；冻融循环：导热系数 中图分类号：TU528．2 文献标识码：B 文章编号：1001—702X(2011)09—0008—03 Study on property of gypsum foamed concrete X／ANG Renke ，SHI Zongli ～，X Jianhai (1．Institute of Materials Science and Engineering，Lanzhou Jiaotong University，Lanzhou 730070，Gansu，China： 2．Institute of Composite Materials，Hunan University，Changsha 410082，Hunan，China) Abstract：The gypsum foamed concrete with different density level is made by taking flue gas desulphurization gypsum as hase ma— terial，slag，Poaland cement and self-made additives as modifier，small amount of CaO，accelerator and foaming agent as admixture．_rhP influence of different admixture on the initial—final setting times and mechanics performance of gelled material was researched，the thermal conductivity coefficient of gypsum foamed concrete was tested and the product thermal performance was described．The results indicate that the product has high strength，low thermal conductivity and good comprehensive performance．It is conducive to using FGD gypsum (industrial by-product)and improving energy efficiency leve1． Key words：gypsum foamed concrete：fieeze—thaw cycle；thermal conductivity 世界能源日趋紧缺，节能