Effectiveness Of Epoxy Coating Nitoprime Zincrich As Corrosion Protection Method For Reinforcing Steel

Download or read book Effectiveness of Epoxy Coating Nitoprime Zincrich as Corrosion Protection Method for Reinforcing Steel written by S.Amutha Subramaniam and published by . This book was released on 2005 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: The principal cause of degradation of steel reinforced structures is corrosion damage to the rebar embedded in the concrete. The two most common causes of reinforcement corrosion are chloride ions and carbonation. The scale of this problem has reached alarming proportions in various parts of the world. Thus, a lot of money being spent on the rehabilitation of concrete structures i.e. bridges, marine structures etc. In realizing this crucial situation, the corrosion protection methods were emphasized widely in the past. However, the proposed methods somehow failed to be implemented widely due to various factors. Hence this project is trying to look into the potential corrosion protection method on reinforcement steel. Laboratory tests were carried out using small reinforced concrete beam specimens exposed to different corrosive environment namely tap water, chloride, tap water accelerated, marine accelerated and acidic accelerated. Out of total 10 numbers of specimens, 5 specimens contain reinforcement painted with epoxy-coating (Nitoprime Zincrich) having coating thickness of 40 11m. Acceleration tests were carried out on 60% of the specimens to expedite the various environmental effects on the specimens. From the study, it is apparent that coating the reinforcement prior to placing inside concrete plays a key role in protecting the reinforcement from corrosion. However, one needs to study the environment prior to choosing the suitable coating material.