Evaluation of Bond (Adhesive) Strength Between Conventional Concrete and Steel Fiber Reinforced Concrete Interface

Abstract

Good bond strength between overlay and substrate is a key factor in performance of concrete repairs. This thesis was aimed at studying the evaluation of bond strength between conventional concrete substrate and steel fiber reinforced concrete. Many factors such as surface roughness, existence of micro cracks, compaction, curing etc. influence `the bond strength. The quality assurance of the bond strength requires test methods that can quantify the bond strength as well as identify the failure mode. There have been numerous investigations led to development of different test methods. The forces which are applied in each test and the failure mode are important in order to choose the proper test. An interpretive study on test methods is presented. While this study can provide individually useful information on bond strength and bond characterization.