聚合物改性闸底板硅粉混凝土抗盐冻试验研究  

Experimental Study on Salt Frost Resistance of Polymer Modified Silica Fume Concrete for Sluice Floor

作　　者：周翔 ZHOU Xiang(Tarim River Basin Engineering Construction Office,Korla 841000,Xinjiang,China)

机构地区：[1]塔里木河流域工程建设处,新疆库尔勒841000

出　　处：《水利科技与经济》2022年第3期134-137,共4页Water Conservancy Science and Technology and Economy

摘　　要：为提升闸底板硅粉混凝土的抗盐冻侵蚀性能,采用室内试验方法,对不同聚灰比下硅粉混凝土的抗盐冻力学性能进行研究。结果表明,聚合物可以明显改善硅粉混凝土的内部孔隙结构,使混凝土密实性得到提升,从而对强度、抗冻和抗渗性能起到明显的改善作用;随着聚灰比的增大,混凝土的强度下降幅度、质量损失率、电通量逐渐减小,相对动弹性模量逐渐增大;当聚灰比达到10%以后,硅粉混凝土将具有较好的抗盐冻力学性能。In order to improve the salt frost resistance of silica fume concrete on gate floor,the salt frost resistance mechanical properties of silica fume concrete under different aggregate cement ratio were studied by indoor test method.The results show that the polymer can obviously improve the internal pore structure of silica fume concrete and improve the compactness of concrete,so as to significantly improve the strength,frost resistance and impermeability of silica fume concrete;with the increase of aggregate cement ratio,the strength decline,mass loss rate and electric flux of concrete gradually decrease,and the relative dynamic elastic modulus gradually increases;when the aggregate cement ratio reaches 10%,silica fume concrete will have better mechanical properties of salt freezing resistance.

关 键 词：闸底板 聚合物 硅粉混凝土 盐冻融试验 

分 类 号：TU528[建筑科学—建筑技术科学]