Effect of Rice Husk Ash to Mechanical Properties of Clay Bricks

This research explored the effect of rice husk ash on the mechanical properties of clay bricks, for example, strength, density, and water absorption. Rice husk ash, varying 0 to 5% by weight, was added. The results showed that porosity increased when adding rice husk. Adding 3% rice husk ash by weight showed the best mechanical brick properties, with 13.50 MPa of compressive strength, 1.69 g/cm3 of density, and 11.50% of water absorption.