缓凝剂对云南磷建筑石膏性能影响研究

摘要

In this paper, through the experimental study of tartaric acid, polyvinyl alcohol (PVA), thiocarbamide, osseocolla four kinds of retarders, which affected the compressive strength, setting time of Yunnan building phosphogypsum, we found osseocolla retarder was the best retarder of Yunnan building phosphogypsum, further using origin software for data iftting, obtained it’s iftting equation, then through the ift of the experiment, ifnally determined the best content of osseocolla retarder.%研究酒石酸、聚乙烯醇（PVA）、硫脲、骨胶4种缓凝剂对云南磷建筑石膏的抗压强度、凝结时间的影响，确定骨胶缓凝剂是最佳缓凝剂，进一步利用Origin软件进行数据拟合，获得其各拟合方程，通过实验验证拟合度，最终确定骨胶缓凝剂的最佳掺量。