Abstract
This study aims to reduce the cement content using in cement brick, and replace the cement by using corn cob ash in bricks to achieve the normal strength. Corn cob ash mixed with sand with various proportions (50%, 60%, 70%) to achieve the strength of the nominal bricks and also to posses thermal and sound insulation. The result in increase the strength of structure and weight reduction of bricks was tested for compressive strength. Based on the comparison of conventional and corn cob ash brick, optimum strength was analyzed. The results are clearly shows that corn cob ash used in the production of brick.