油页岩灰渣蒸压法制备墙体材料的实验研究  

Preparation of autoclaved wall materials from oil shale ash

作　　者：张奇[1] 李金洪[1] 侯磊[1] 申巧蕊 钱婷婷[1] 

机构地区：[1]中国地质大学材料科学与工程学院,北京100083

出　　处：《新型建筑材料》2013年第10期14-17,共4页New Building Materials

基　　金：中国地质调查局项目(1212011120323)

摘　　要：以油页岩灰渣为主要原料,添加生石灰、脱硫石膏,经蒸压养护(193℃,1.33 MPa)制备新型墙体材料。主要探讨了生石灰、脱硫石膏以及骨料的添加量对制品性能和微观结构的影响。当生石灰、脱硫石膏和骨料的添加量(质量比)分别为20%、4%和20%,所得制品的吸水率为11%,抗压强度为37 MPa;15次冻融循环后材料抗压强度为21 MPa,质量损失率1.9%。物相和显微结构分析表明,蒸压过程中水化反应生成的主要产物为水化硅酸钙和水化硅铝酸钙凝胶。In this paper, antoclaved wall materials were prepared from the oil shale ash,quicklime and FGD gypsum after autoclaved curing （193℃, 1.33 MPa）. The article mainly discusses the influence of addictive amount of quicklime,light aggregate and desulfurized gypsum to the performance and microstructure of autoclaved wall materials. When the addition amount （mass ratio） of the quick lime, FGD gypsum and aggregate is 20%,4%,and 20% respectively,the water absorption of the products is 11% and the compressive strength is 37 MPa. After 15 freeze-thaw cycles,the material strength is 21 MPa and the quality loss less than 1.9%. The XRD analysis and microstructure characteristic of the products show that the main hydration reaction products are CSH and hydrated aluminosilieate calcium gel.

关 键 词：油页岩灰渣 蒸压砖 性能 微观结构 

分 类 号：TU52[建筑科学—建筑技术科学]