Sawdust Ash as an Inhibitor for Reinforcement Corrosion in Concrete

Abstract

An evaluation of the use of sawdust-ash (SDA) as an inhibitor for reinforcement corrosion in concrete has been investigated. The results obtained showed addition of SDA to concrete can be effective in the control of corrosion. The advantages are numerous. One of such is to do with the health of the environment where timber industries are located. When used as a pozzolanic material, SDA improved porosity and imparted strengths to the concrete. The experimental results showed that carbonation depth and weight loss, are reduced by approximately 24% and 43% respectively, and therefore the process of corrosion, delayed.