脱硫石膏改性及抹面材料的制备与性能研究  

Preparation and property research of modified desulfurization gypsum and plaster materials

作　　者：傅鹏[1] 李国忠[1] 

机构地区：[1]济南大学建筑材料制备与测试技术山东省重点试验室,山东济南250022

出　　处：《砖瓦》2015年第4期5-7,共3页Brick-tile

摘　　要：以脱硫石膏作为胶凝材料的石膏抹面材料,研究了各种石膏缓凝剂及对脱硫建筑石膏胶凝材料工艺性能的影响,并制备出脱硫石膏抹面材料。在石膏试样成型过程中掺加不同的缓凝剂改善工艺性能,研究其凝结时间和力学性能等。根据脱硫建筑石膏凝结时间和力学强度综合分析,得出缓凝剂最佳的掺入量为:柠檬酸0.06%;酒石酸没有合格的掺入量;三聚磷酸钠0.20%。Taking desulfurization gypsum as the cementitious materials of the plaster materials, the paper studies a variety of gypsum retarder and the impact on the process performance of construction desulfurization gypsum cementitious materials, and prepares desulfurization gypsum plaster materials. And researches its setting time and the mechanical properties, etc., by adding different retarders in molding gypsum samples to improve the process performance. According the comprehensive analysis of the construction desulfurization gypsum’s setting time and mechanical strength, the paper obtains the optimum retarder amount of 0.06%citric acid, 0.20%tripolyphosphate and tartaric acid without qualified incorporation.

关 键 词：脱硫石膏 抹面材料 缓凝剂 

分 类 号：TU522.09[建筑科学—建筑技术科学]