云南化工2016，Vol.43Issue(3)：1-5,5.DOI:10.3969/j.issn.1004-275X.2016.03.001
可溶无水石膏Ⅲ对半水石膏水化过程的影响
Mechanism Analysis of the Soluble Anhydrite Ⅲ in Hydration Process of β-hemihydrate gypsum
摘要
Abstract
The paperstudied the influence of the soluble anhydrite III (A III)on the hydration process of β-hemihydrate gypsum.The raw material of β-hemihydrate gypsum,hydration processand gyp-sum products were analyzed by conventional analysis method,XRD and scanning electron microscopy.The results show that the activity of AⅢ is very high and the hydration speed is very quickly.So when the water reducing agents was investigated,the effects of reducing the amount of water and improving strength of gyp-sum products were not found.The additives of YT can improve the strength of gypsum products.When the a-mount is 0.1 ~0.2%,with 2 -hour and 24 -hour,the compressive strength can be improved to be 22%and 20 ~30% respectively.When the additives of FDN is 0.2%,the ratio of water -powder decreases from 0.7mL/g to 0.6mL/g and the amount of water decreases nearly 1 4.2%.The water reduction is obvious.关键词
无水石膏Ⅲ/半水石膏/增强加速剂Key words
AⅢ/β-hemihydrate gypsum/accelerator分类
化学化工引用本文复制引用
郑绍聪,余强,宁平,谢刚,王智娟,田林..可溶无水石膏Ⅲ对半水石膏水化过程的影响[J].云南化工,2016,43(3):1-5,5.基金项目
国家自然科学基金资助项目（E0415）；曲靖师范学院校级青年项目（2012QN018）。 （）
