石膏对混凝土性能的影响分析  

Analysis of the Influence of Gypsum on Concrete Performance

作　　者：章典典 姚晓阳 于飞宇 朱巧勇 曾贤华 熊浩男 ZHANG Diandian;YAO Xiaoyang;YU Feiyu;ZHU Qiaoyong;ZENG Xianhua;XIONG Haonan(Kezhijie New Materials Group Zhejiang Co.,Ltd.Lanxi 321100,China)

机构地区：[1]科之杰新材料集团浙江有限公司,浙江兰溪321100

出　　处：《广东土木与建筑》2021年第2期84-86,共3页Guangdong Architecture Civil Engineering

摘　　要：对磷石膏(LS)、脱硫石膏(TS)、二水石膏(ES)、氟石膏(FS)和硬石膏(YS)等5种不同类型的石膏对混凝土减水率、经时损失、抗压强度和凝结时间的影响进行了研究。研究结果表明,掺入特定比例的LS、YS可以减少混凝土的经时损失、延长混凝土的凝结时间、增加混凝土抗压强度。其中LS对混凝土的减水率、经时损失和凝结时间的影响最大。Five different types of gypsum,including phosphogypsum(LS),desulphurized gypsum(TS),dihydrate gypsum(ES),fluorogypsum(FS)and anhydrite(YS),have an effect on concrete water reduction rate,loss over time,and compressive strength and the effect of setting time was studied.The research results show that adding a specific proportion of LS and YS can reduce the loss of concrete over time,extend the setting time of concrete,and increase the compressive strength of concrete.Among them,LS has the greatest impact on the water reduction rate,time loss and setting time of concrete.

关 键 词：石膏 混凝土经时损失 混凝土凝结时间 抗压强度 水泥硫含量 

分 类 号：TU528.47[建筑科学—建筑技术科学]