EXPERIMENTAL STUDY ON EFFECT OF POLYPROPYLENE AND STEEL FIBRES ON CORROSION OF REBARS IN R.C.C by Kuldip Singh
Abstract
Corrosion of steel is the fundamental reason of decline of RCC structures in presenttime. When the RCC structures fails due to corrosion of rebars then unity of structures also under a danger. Due to the corrosion of the steel rebar, the structures fails and causes a loss of property and money also. Therefore corrosion of reinforcement steel is dangerous and required a study to minimize the corrosion of the steel reinforcement. In this this work PPF and SF were utilize to safe the steel rebars against the corrosion. The use of polypropylene fibres in the concrete mix improves moment capacity and ductility of the tested concrete beams. The result for the steel fibre also showed an improvement in moment capacity. The research work consists of investing the influence of the SF and PPF on corrosion of rebars in R.C.C. In this research (100 × 100 × 400) mm beams were cast having bottom steel bars of 8 mm dia for a corrosion process. In this research (100 × 100 × 500) mm beams were cast to check the flexural strength of PPFRC and SFRC beams and (150 × 150 × 150) mm size cubes were cast to check the compressive strength of PPFRC and SFRC cubes. For the study, monofilament
polypropylene fibres and hooked end steel fibres were used. In this research work 8 concrete mixes were prepared using a SF and PPF. From the research concluded that corrosion of rebars decreases with the addition of fibre content because the fibre provides discontinuity to the path of harmful agents in the concrete. From the research it has been observed that S1mix samples show best performance in compressive strength, SP2 mix in the flexural strength and P1 mix in corrosion resistance
