Stabilization of Earth Block Using Rice Husk Ash as Partial Replacement in Cement

The most outstanding problem militating the production of earth block in Nigeria, is exorbitant prices cement, rice ash replaced with stabilized compressed to carry load. main objective this study was investigate sustainability earthen construction a partial replacement cement using Rice Husk Ash (RHA). RHA bye-product material obtained from combustion husk which consists non-crystalline silicon dioxide high specific surface area and pozzolanic reactivity set sieves 3.35um - 63um, weigh balance, oven maintained at temperature 105°C 110°C, six meta trays, bucket, soap, wire brushes, mechanical shaker. It used as block. Testing specimen were determined examine structural composition by means unconfined compressive strength hydraulically for crushing mix content ranges 10% 50% respectively. result shows significant resistance shear 30 90 kg/mm2, proving that can satisfactorily load when structurally loaded resist tensile stresses.