Abstract
Honeycombing is one of the surface imperfections in concrete structures. In the conventional repair method of honeycombing, the bond compatibility of the repair material with the existing sound concrete is important issue. If it is not enough, it may cause spalling of the repaired part and deteriorate the structural performance and durability of the structures. In this study, we proposed a new repair method which injects the resin without removing the honeycombed area. At first, to evaluate the degree of the honeycombing, the non-filled concrete ratio of the honeycombed concrete specimen was defined based on the densities. Then, the procedure of the new repair method was established. Finally, it was shown that the compressive, tensile and flexural strengths of the specimens repaired by the proposed method were almost the same or more than those of the sound concrete specimens.
