掺蛇纹石粉末的N-羟甲基丙烯酰胺复合外加剂对混凝土性能的影响  

Effect of N-hydroxymethylacrylamide composite admixture with serpentine powder on the properties of concrete

作　　者：石建军 汪佳乐 李景阳 许新春 刘正宇 张兰硕 唐刘毅 SHI Jianjun;WANG Jiale;LI Jingyang;XU Xinchun;LIU Zhengyu;ZHANG Lanshuo;TANG Liuyi(School of Civil Engineering,University of South China,Hengyang 421001,China)

机构地区：[1]南华大学土木工程学院,湖南衡阳421001

出　　处：《混凝土与水泥制品》2025年第1期25-28,33,共5页China Concrete and Cement Products

基　　金：大学生创新创业训练计划项目(S202210555217)。

摘　　要：采用N-羟甲基丙烯酰胺水溶液与粒径为0.08~0.10 mm的蛇纹石粉末制备了外加剂,研究了掺该外加剂的蛇纹石混凝土高温后的性能。结果表明:掺N-羟甲基丙烯酰胺蛇纹石粉末复合外加剂的蛇纹石混凝土具有良好的高温防辐射能力;N-羟甲基丙烯酰胺蛇纹石粉末复合外加剂对蛇纹石混凝土高温前后的轴心抗压强度均有提高作用,同时,还可以提高高温后力学性能的稳定性。An admixture was prepared using N-hydroxymethacrylamide aqueous solution and serpentine powder with a particle size of 0.08~0.10 mm,and the properties of serpentine concrete after high temperature were studied.The results indicate that the serpentine concrete mixed with N-hydroxymethylacrylamide serpentine powder composite admixture has good high-temperature radiation resistance.The N-hydroxymethylacrylamide serpentine powder composite admixture can improve the axial compressive strength of serpentine concrete before and after high temperature,and also enhance the stability of mechanical properties after high temperature.

关 键 词：蛇纹石 N-羟甲基丙烯酰胺 混凝土 热重损失 工作性 抗压强度 

分 类 号：TU528.35[建筑科学—建筑技术科学]