Comparative Study of Compressive Strength Test of Burnt Bricks with Non-Fired Bricks using Agricultural Waste from Rice Hush Ask and Sugarcane Bagasse Ash

Abstract

Earthen bricks are one of the main building materials that are still widely used today. The high demand for bricks requires innovation and creativity in obtaining raw materials, including testing compressive strength and comparing it with burnt bricks available on the market to ensure appropriate standards are applied. In general, to compare unfired bricks with burned bricks, rice husk, and bagasse ashes were included in this study to establish the compressive strength test. Materials for non-burning bricks can have different ratios of cement, red earth, lime, rice husk ash, and bagasse ash, each with a different composition. The planned compressive strength value for burnt and unburnt reach bricks does not reach 5 MPa, for burnt bricks, the average is 3,59 MPa, and for burnt bricks with rice husk ash 4,3 MPa and with sugarcane bagasse ash 4,27 MPa. However, these bricks are still ideal for non-structural purposes. The comparative compressive strength test results show that rice husk ash increases the strength of unfired bricks by 16,51%, while sugarcane bagasse ash shows an increase of 18,94%. Thus, this study represents an advancement of science and environmental benefits.