复合防腐涂层钢筋-混凝土黏结性能试验研究  

Experimental study on bond behavior between steel bar and concrete with metal-nonmetal composite anticorrosive coating

作　　者：李兵[1] 张连英[1] 安云岐 晁兵 李雁[1] 朱炯[1] 仇培涛[1] 马超[1] 李承宇 杨甜甜 LI Bing;ZHANG Lianying;AN Yunqi;CHAO Bing;LI Yan;ZHU Jiong;QIU Peitao;MA Chao;LI Chengyu;YANG Tiantian(School of Civil Engineering,Xuzhou Institute of Technology,Xuzhou 221018,China;Jiangsu Zhuoqi New Material Technology Co.,Ltd.,Xuzhou 221008,China)

机构地区：[1]徐州工程学院土木工程学院,江苏徐州221018 [2]江苏卓奇新材料科技有限公司,江苏徐州221008

出　　处：《混凝土》2022年第1期37-40,共4页Concrete

基　　金：国家自然科学基金面上项目(52074240);住房和城乡建设部科学技术项目(2013-K4-22,2014-K4-042);国家建筑材料行业科技创新计划面上研究项目(2016-Z-8,Z2018J06);江苏省高等学校自然科学研究面上项目(18KJB560019);江苏省住房和城乡建设厅科学技术计划项目(2017ZD163);徐州市重点研发计划(KC18090,KC20176);徐州市创新能力建设计划(KC18241);公路检测装备测量数据准确性研究(00799953)。

摘　　要：基于ZnAl15、Al、AlMg5热喷涂金属涂层为底层、环氧封闭底漆为中间层和丙烯酸面漆为表层的单层、双层和三层复合防腐涂层钢筋与混凝土黏结性能推出试验研究,得到了其对应的位移-应力曲线、黏结强度和破坏特征,结果表明:黏结强度从大到小依次排列为b_(2)>b_(1)>d_(1)>c_(1)>a>c_(2)>d_(2)>b>c>d;ZnAl15+环氧封闭底漆+丙烯酸聚氨酯面漆的黏结强度最大,相对于无涂层提高了8.1%;黏结强度=8 MPa是试样破坏模式发生变化的一个临界值。The bond properties of single,double and three-layer composite anti-corrosion coatings with Zn Al15,Al and Al Mg5 as the bottom layer,epoxy sealer as the intermediate layer and acrylic topcoat as the surface layer were studied.The corresponding displacement-stress curve,bond strength and failure characteristics were obtained.The bond strength from large to small is b_(2)>b_(1)>d_(1)>c_(1)>a>c_(2)>d_(2)>b>c>d.The bond strength of Zn Al15+epoxy sealer+acrylic polyurethane topcoat is the largest,which is increased by 8.1% compared with that without coating.The peak strength bond strength is 8.0 MPa which is a critical value for the change of specimen failure mode.

关 键 词：工程防腐 金属涂层 复合涂层 钢筋混凝土 黏结性能 

分 类 号：TU528.01[建筑科学—建筑技术科学]