Physical, morphological and mineralogical properties of ceramic brick incorporated with Malaysia’s rice hush ash (Rha) agricultural waste

Abstract

In this work, the effect of various weight percentage of rice husk ash (RHA) in ceramic brick production was investigated in terms of mineralogical, physical, chemical and morphological properties. The evaluation of the use of RHA as a raw material for ceramic products is tested to determine the linear shrinkage, volumetric shrinkage, water absorption, apparent density and bulk density. These physical results suggested that the addition of RHA can improve the physical properties of ceramic brick. Scanning electron microscopy images confirmed the increased of ceramic strength with the addition of RHA and firing temperature. In addition, quantitative and qualitative chemical analysis supported the results obtained. Overall, the results demonstrated the high potential of RHA in green technology for ceramic production.