experimental studies on gfrp repaired hollow-block concrete sections

this study evaluates two different types of techniques for concrete hollow-block sections reinforced with traditional steel rebars and wire meshes, and compares their structural behaviour to that of an ordinary reinforced concrete beam section. the comparisons are based on the responses both before and after they were repaired with glass fibre reinforced polymers (gfrp). the specimens were subjected to concentrated loading up to initial failure. after failure, the specimens were repaired and loaded once again until ultimate failure. it was shown that the success of the repair by gfrp depended on the mode of failure of the hollow-block concrete beams.