Effects of rice husk ash on characteristics of the briquette produced for masonry units

Abstract

This study was carried out to investigate the physical and mechanical properties of briquette produced from rice husk ash (RHA). To do this, six briquette classes were formed by changing the volume of RHA and cement and porous briquettes were produced for each class according to Turkish Codex no. 406 (TS 406) and tested. Increasing ratio of RHA volume affected the compressive strength, water absorption and losses due to freezing-thawing of the briquettes negatively. As for the dimensional changes, bulk densities and heat conductivity decreased and were affected positively. It was concluded that RHA might be used in briquette production replaced the cement in certain ratio to make them profitable and lessen their adverse effects on the environment. © 2011 Academic Journals.