矿渣粉-沸石粉海工混凝土配制及耐久性研究  

Research on Preparation and Durability of GGBS-Zeolite Powder for Marine Concrete

作　　者：明阳 李玲 陈平 陈宣东 甘国兴 MING Yang;LI Ling;CHEN Ping;CEHN Xuan-dong;GAN Guo-xing(College of Civil and Architecture Engineering.Guilin Universily of Technology,Guilin 541004.China;Guangxi Key Laboratory of New Energy and Building Energy Saving,Guilin 541004,China;Guangxi Beibu Gulf Engineering Research Center for Green Marine Materials,Guilin 541004,China;Guangxi Engineering and Technology Center for Utilization of Industrial Waste Residue in Building Materials,Guilin 541004,China)

机构地区：[1]桂林理工大学土木与建筑工程学院,桂林市541004 [2]广西建筑新能源与节能重点实验室,桂林市541004 [3]广西壮族自治区北部湾绿色海工材料工程研究中心(广西发改委),桂林市541004 [4]广西工业废渣建材资源利用工程技术研究中心(广西科技厅,广西重大创新基地),桂林市541004

出　　处：《公路》2020年第8期317-322,共6页Highway

基　　金：广西重点研发计划,项目编号桂科AB19259008,桂科能19-J-21-12。

摘　　要：试验研究了矿渣粉—沸石粉的掺入对混凝土工作性能以及抗侵蚀性能的影响,并通过XRD和SEM对化学侵蚀后水化产物进行了分析。研究结果表明:矿渣粉的掺入能改善混凝土的工作性能,但会增加混凝土的泌水率;沸石粉没有矿渣粉一样的低需水性,但沸石粉的掺入能减少泌水;矿渣粉和沸石粉双掺可显著提高混凝土的抗硫酸盐和耐海水侵蚀性。The impact of adding GGBS-zeolite powder on the performance and erosion resistance of concrete is studied,and the hydration products of cementitious materials after chemical erosion are analyzed by XRD and SEM.The result shows that:GGBS can improve the performance of concrete,but will increase the bleeding rate of the concrete;zeolite powder doesn’t possess the same lower water demand as that for GGBS,but the zeolite powder can reduce the bleeding rate;and the resistance to sulphate and anti-sea erosion of the concrete can be improved significantly when both the zeolite powder and GGBS are added.

关 键 词：海工混凝土 矿渣粉 沸石粉 耐久性 

分 类 号：U414.01[交通运输工程—道路与铁道工程]