Title : INVESTIGATIONS OF COMPLEMENTARY BENEFITS OF FRP AGAINST CHLORIDE INTRUSIONS IN CONCRETE
Authors : Harish Chandra Arora, Dr. Umesh Kumar Sharma, Dr. Anupam Chakrabarty, Dr. B. Kameshwar Rao
Publication : 8 - 10, October 2015
Volume : 2
Pages :
Price : 250
Abstract : Lot of research studies have been carried out in the past for studying the structural performance and failure modes of concrete structural elements wrapped with Fibre Reinforced Polymers (FRP). Well established design guidelines are now available for the needed structural performance improvements in RC structures through FRP uses. On the other side the experimental and field data highlighting the effectiveness of FRP to prevent the chloride ingress and corrosion propagations in concrete structures is scarce. Among the studies performed in this area, there exist some contradictory outputs from laboratory investigations. This aspect is being experienced from the field maintenance engineer’s sides also. Considering this, systematic laboratory studies were carried out to enrich the data bank in the area of chloride penetration in RC structural beams with schemes of FRP application on them. A few of the results presented in this paper show that FRP provided higher resistance to penetration of chloride ions. This holds particularly true for initial stages of exposures. However, FRP application scheme type performs a great role here. The paper also highlights important observations from a few of the laboratory and field investigations performed in the past.