刚性防水水泥基材料关键性能研究  

Research on Key Performance of Rigid waterproof Cement-based Material

作　　者：胡浩月 余保英 周建伟 王福涛 祝小靓 周晋筑 王学朋 Hu Haoyue;Yu Baoying;Zhou Jianwei;Wang Futao;Zhu Xiaoliang;Zhou Jinzhu;Wang Xuepeng(China West Construction Building Materials Science Research Institute Co.Ltd.,Chengdu,Sichuan 610000;China State Construction Railway Investment&Engineering Group Co.Ltd.,Beijing 102600)

机构地区：[1]中建西部建设建材科学研究院有限公司,四川成都610000 [2]中建铁路投资建设集团有限公司,北京102600

出　　处：《江西建材》2024年第8期17-21,共5页

基　　金：中建西部建设科技研发课题《海上溢油应急处置实验系统超长结构高抗裂抗渗混凝土研究与应用》(项目编号:ZJXJ-2024-02);中建西部建设科技研发课题《地下结构用低水泥熟料系数混凝土性能调控与应用技术研究》(项目编号:ZJXJ-PT-2023-07)。

摘　　要：文中研究了刚性防水水泥基材料(RigidWaterproof Cement-basedMaterial:RWCM)的力学性能和耐久性能。研究发现,通过配合比设计制备出的40、50、60MPa强度等级RWCM,弹性模量在22~30GPa且早期轴向拉伸性能优异。水养条件下RWCM干缩小;养护28d后,3.0MPa抗渗压力达下,渗透高度低于12mm;28d电通量小于112C,抗氯离子性能优异,且RWCM在不同拉伸应变(0~2%)也有优异的抗渗性能。This article investigates the mechanical and durability properties of rigid waterproof cement-based material(RWCM).The results indicated that RWCM with strength grades of 40,50,and 60 MPa were prepared through mix design,with elastic modulus ranging from 22 GPa to 30 GPa,which showed excellent early axial tensile properties.Drying shrinkage of RWCM was very low under water curing condi-tions.After curing for 28 days,the permeability height is less than 12 mm under the permeability pressure of 3.0 MPa.And,the electrical flux of those spacemen after curing for 28 days is less than 112 C,and the resistance to chloride ions is excellent,too.RWC also has excellent impermeability performance between different tensile strains(0~2%).

关 键 词：刚性防水水泥基材料 抗压强度 弹性模量 干燥收缩 抗渗性 

分 类 号：TU528.01[建筑科学—建筑技术科学]