高强石膏的生产工艺及其改性研究  

Study on production technology and improvement of high strength gypsum

作　　者：余红发[1] 裴锐 王维华 

机构地区：[1]沈阳建筑工程学院材料科学与工程系

出　　处：《沈阳建筑工程学院学报》1999年第4期337-341,共5页Journal of Shenyang Archit Civil Eng Univ: Nat Sci

摘　　要：采用蒸炼法生产出抗压强度４０ＭＰａ 的α半水石膏．基于α半水石膏力学性能与其结晶形态的关系，探讨外加剂技术对α半水石膏晶体形态的控制机理，认为掺加有机无机复合外加剂可以获得理想的短柱状α半水石膏晶体．并对蒸炼法利用外加剂技术的可行性进行探索．This paper introduces the production of higher strength α hemihydrate by steaming method.The compressive strength of high strength gypsum is more than 40 MPa.The controlled mechanism of addition on the crystal shape of α hemihydrate is discussed on the basis of the relationship between α hemihydrate mechanical property and its crystal shape.The compound of organic acid(organic salt)with inorganic acid can make ideally short pillar like shape of α hemihydrate crystal.The possibilite is explored for the improvement of addition on the technology of steaming method.

关 键 词：高强石膏 Α-半水石膏 结晶形态 外加剂 蒸炼法 

分 类 号：TQ177.373[化学工程—硅酸盐工业] TQ177.37