Use of rice husk ash in cement mortar

Abstract EN

This research deals with the effects of using rice husk ash (RHA) as a partial weight of cement replacement materials in cement mortar mixes.

This work is based on an experimental study of mortar made with ordinary Portland cement (OPC) and 5 %, 10 %, 15 % and 20 % (OPC) replaced by RHA.

The rice husk ash used was produced by burning the rice husk at 500° C, then grinding it to a fineness of 11200 cm2 / gm (Blaine).

The tests which were performed evaluate the action of this material were : normal consistency, setting time, compressive strength, flexural strength and porosity.

The results show that addition of RHA show better results for 15 % replacement level than OPC at 90 days.