Residual Strength & Post-Cracking Behaviour of Glass Wool FRC with SR

This book is as a result of academic research conducted to investigate the impact of glass wool fibre (GWF) on the residual flexural strength (RFS) of conventional reinforced concrete. Universally, concrete structure is prone to cracking in tension region which, in turn, can appreciably impair its long-term performance. To prevent potential failure, there is need to determine the load-carrying capacity existing in a potentially cracked concrete structure during service year. The tests conducted and results obtained showed that combining conventional steel reinforcement (SR) and GWF resulted in enhanced residual strength. Evidently, the effect of SR dominated that of GWF in concrete but the combined effect in terms of post-cracking behaviour and strength was favourable to the long-term performance of concrete. Hence, use of both SR and GWF should be given more consideration in concrete industry because of the possibility of improved RFS and as their synergic tensile properties could prolong the service life of concrete structures.