透水混凝土专用改性剂的制备及对其性能的影响研究  

Study on preparation of special modifier for pervions concrete and influences on its properties

作　　者：胡锦轩 吴克雄 李顺凯[3] 沈尔卜 高玉军 HU Jinxuan;WU Kexiong;LI Shunkai;SHEN Erbu;GAO Yujun(CCCC Wuhan Harbor Engineering Design And Research Co.Ltd.,Wuhan 430000,China;Hubei Key Laboratory of Advanced Materials&Reinforcement Technology Research for Marine Environment Structures,Wuhan 430000,China;Key Laboratory of Large-span Bridge Construction Technology,Wuhan 430040,China)

机构地区：[1]中交武汉港湾工程设计研究院有限公司,湖北武汉430000 [2]海工结构新材料及维护加固技术湖北省重点实验室,湖北武汉430000 [3]长大桥梁建设施工技术交通行业重点实验室,湖北武汉430040

出　　处：《新型建筑材料》2020年第4期10-12,27,共4页New Building Materials

摘　　要：针对常规路面不透水、易导致降雨量大时城市内涝的问题,研制了一种透水混凝土专用改性剂,并与市售改性剂进行对比,研究其对水泥透水混凝土强度和透水系数的影响。结果表明:专用改性剂能增强透水混凝土的抗压强度和透水系数,掺量为5%时效果最好,抗压强度较空白对照组提高了20.5%,透水系数增大了17.6%;与市售改性剂相比,自制专用改性剂对透水混凝土的强度和透水系数增加更明显。A special modifier for pervious concrete was developed aimed at the problem of impervious road surface,which can easily lead to urban waterlogging when the rainfall is large.Different modifiers were selected to compare their influences on the strength and permeability coefficient of cement pervious concrete.The test results showed that the self-made modifier can enhance the strength and permeability coefficient of pervious concrete,and the increment of permeability coefficient is the largest when the content is 5%.What's more,compared with the commercial modifier,the strength and permeability coefficient of pervious concrete increased more obviously when the self-made modifier was used.The self-made modifier could increase the strength of pervious concrete by 20.5% and the permeability coefficient by more than 17.6%.

关 键 词：透水混凝土 专用改性剂 增强剂 强度 透水系数 

分 类 号：TU528.042[建筑科学—建筑技术科学]