The Innovation of Interlock Bricks with A Mixture of Bagasse Ash Without Combustion

Abstract

Nowadays, the wall building material is dominated by clay brick and the process requires combustion. Therefore, the need for the development of interlock brick to introduce wall material that is easy to install, strong, without combustion and environmentally friendly. The shape design of interlock brick is made with Modified Tanzanian Interlock Brick (MTIB). Interlock brick size is 25.1 × 12.6 × 7.8 cm. The method of brick making with the experiments of various variations of the mixture to know the product specifications of suction, absorption, salt content and compressive strength with a quality target of grade 50 kg/cm2 that qualified SNI 15-2094-2000. The result was an MTIB that meet the requirements of SNI in a mixture with a ratio of 2 Clay: 3 Sand: 3.5 Portland Cement: 1.5 Bagasse Ash. Specifications of MTIB product obtained results compressive strength of 63.78 kg/cm2, absorption of 19%, the salt content of 4.14%, volume weight of 1.549 g/cm3 and a specific gravity of 1.81 and water suction power of 57.34 g/dm2/minute. MTIB innovations made from the waste of bagasse ash and without combustion process could be utilized for efficient civil building construction, fast, economical, and environmentally friendly compared with other brick materials.