新旧混凝土粘结强度研究  

Study on the Adhesive Strengths of Young and Old Concretes

作　　者：黄瑞阳 

机构地区：[1]湖南省祁东县第二建筑安装工程公司,湖南衡阳421001

出　　处：《建材技术与应用》2010年第4期3-5,共3页Research and Application of Building Materials

摘　　要：基于新旧混凝土的粘结机理,通过对新旧混凝土不同处理方式的粘结面的抗拉强度和抗折强度的试验研究,对影响粘结强度的因素进行了方差分析。结果表明,高压水冲粘结面以及在新混凝土中掺入一定量的钢纤维,是提高粘结强度的有效方法;界面剂对粘结强度的影响较小。According to the different adherence mechanism of young concrete from the old and through the trial study on different treatments of the tensile strength and the flexural strength of the adhesive surfaces, a variance analysis is given to the factors that affect the bonding performances. The results indicate that jetting to the adhesive surfaces with high pressure water and adding certain amount of steel fiber to the new concrete are effective methods to improve the adhesive strength and that the interfacial agent has little influence on that.

关 键 词：新旧混凝土 粘结面 粘结强度 

分 类 号：TU528[建筑科学—建筑技术科学]