Problem to be solved: to provide a method in which the hardening of the repair material is not sufficiently cured even in an injection method using an adhesive tape when repairing a concrete surface.As a tape bonding stepThe second adhesive tape andA first adhesive tape having an adhesive ...
Existing concrete surfaces need to be roughened to a profile necessary to achieve mechanical interlocking with any repair material. In this study, different surface treatments (e.g. grinding, sandblasting, shotblasting, hand- and mechanical milling) were performed and the quality of the preparation ...
Concrete beams strengthened with prestressed near surface mounted reinforcement (NSFR) The need for repair and strengthening of concrete structures has increased considerably over the last decade. A number of methods for repair and/or strengt... H Nordin,B Täljsten,A Carolin 被引量: 218发表: ...
preparationand repairtechniques,p.546R-4 2.1—Introductionandgeneralconsiderations 2.2—Concreteremoval 2.3—Surfacepreparation 2.4—Reinforcementrepair 2.5—Anchoragemethods 2.6—Materialsplacement 2.7—Bondingmethods Chapter3—Repairmaterials,p.546R-16 3.1—Introduction 3.2—Cementitiousmaterials 3.3—Polymer...
Hammer drill holes in the remaining concrete, and then screw in anchors. You want them to rest just a hair lower than the finished step. The new concrete serves as rebar, increasing the repair’s stability by providing additional surface area for adhesion. ...
Before any repair operation, an effective assessment of the concrete substrate has to be performed. Usually next to the surface reparation of concrete, evaluation of the cohesion of the superficial concrete is requested for adhesion and durability reasons. Many authors describe the influence of the ...
In order to study the effect of surface roughness on the bond between a repair material and the concrete substrate, the roughness of the surface needs to be measured. No standard method for measuring surface roughness of concrete has been adopted. A range of methods are available and are in ...
Surface deterioration revealed by cracks can be repaired with materials such as silicates or mortar. Since such repair methods are time-consuming and expensive, the focus has recently been changed to the use of intelligent materials and techniques, such as microencapsulation, to prevent damage and mi...
How important is bond strength? Usually very important--most repairs will be considered failures if the repair material doesn't bond to the concrete matrix. A big part of getting good bond is surface preparation. Consider the dimensional characteristics of the repair material: Drying shrinkage can...
aThe construction must be stopped when the temperature is below 5℃ or the weather is rainy. The[translate] abase surface of concrete, brush the glue material, repair the lower parts on the surface by using the glue to[translate]