Use of rice husk ash as natural inhibitors in reinforced concrete

Abstract

Infrastructure in the coastal area is mostly made of steel and reinforced concrete steel which is susceptible to corrosion due to direct contact with sea water and also climatic conditions. There are several ways that can slow down the rate of corrosion reaction, one of which is by adding certain substances that act as inhibitors of corrosion reactions. This study is to determine the effect of using Rice Husk Ash as a natural inhibitor to reinforcing reinforced concrete reinforcement. The inhibitors used were rice husk ash mixed with reinforced concrete mixture as much as 5% and 10%. This corrosion measurement by calculating the weight lost from the reinforcement (inhibition efficiency). From the experimental results show that the higher the concentration given the lower the corrosion rate, and the optimal conditions obtained the effect of the use of natural inhibitors (rice husk ash) to reinforcing steel corrosion on the addition of 10% inhibitor of rice husk ash ash by 96%.