STUDY ON THE CONCRETE CRACKS REPAIRED BY THE PERMEANT ADHESIVE

摘要：

Concrete Cracks is one of the most important reasons for deteriorating the durability of concrete,so repairing technique is of vital important. In this paper,a new type of permeant adhesive and a new technique called permeation-nonpressure technique are introduced for repairing the tiny cracks less than 0.1mm. The viscosity and strength of the permeant adhesive are tested,respectively. Then the adhesion between permeant adhesive and concrete is studied by the method of comparing strength and microscope. And then the sulphate attack,freeze-thaw resistance and impermeability of the repaired concrete are discussed by the method of immersion corrosion and freeze-thaw cycles. It is shown that temperature and reactive diluent are important factors in viscosity of the permeant adhesive. Curing agent and reactive diluent are important factors in strength. The strength of the repaired concrete can increase 24％ to 120％. The strength of the repaired concrete which is immersed in sulphate increases 3％ to 26.2％,while the freezethaw resistance and impermeability of the repaired concrete are better. The above provide the theoretic and experiment foundation for simpling the pressure grouting technique of the concrete repaired and the application on the permeant adhesive.

关键词： Permeant adhesive Concrete repair technique Concrete durability No pressure grouting Low viscosity epoxy resin

作者: Qi Zhou Ji-Ping Hao Ping Lv Jin-Jie Men

作者单位: College of Civil Engineering,Xian University of Architecture and Technology,Xian 710055,P.R. China College of Civil Engineering,Qingdao Technological University,Qingdao 266033,P.R.China

会议类型: 国际会议

会议名称: The Eleventh International Symposium on Structural Engineering(第十一届结构工程国际研讨会)

会议地点: 广州

会议语种:英文

页码: 1252-1257

在线出版日期: 2010-12-01（万方平台首次上网日期，不代表论文的发表时间）