水力发电2025，Vol.51Issue(4)：104-110,7.
渗透结晶型防水剂对混凝土抗冻性能的影响
Influence of Cementitious Capillary Crystalline Waterproofing Agent on the Frost Resistance of Concrete
摘要
Abstract
To study the effect and mechanism of cementitious capillary crystalline waterproofing(CCCW)agent on the antifreeze property of concrete,concrete specimens are prepared by using five kinds of CCCW agent contents(0,2%,4%,6%,8%),and the rapid freezing and thawing tests with 25,50,75 and 100 times cycle are carried out,respectively,to investigate the effect of CCCW on the antifreeze property of concrete through the variation rules of appearance,mass loss rate,relative dynamic elastic modulus,compressive strength,flexural strength,and relative impact elastic wave velocity during the freeze-thaw cycle.Combined with the results of X-ray diffraction(XRD)and scanning electron microscope(SEM)analysis,the effect of CCCW on the freezing resistance of concrete and its mechanism is revealed.The results show that,with the increase of CCCW content,the freezing resistance and mechanical properties of concrete show a trend of increasing first and then decreasing,and its strength is the best when the content is 6%.关键词
混凝土/渗透结晶型防水剂/抗冻性能/微观机理Key words
concrete/cementitious capillary crystalline waterproofing agent/antifreeze property/microscopic mechanism分类
水利科学引用本文复制引用
郑寒,董玉文,王宗波..渗透结晶型防水剂对混凝土抗冻性能的影响[J].水力发电,2025,51(4):104-110,7.基金项目
国家自然科学基金资助项目(52379115) （52379115）
