EFFECT OF RICE HUSK ASH AND MARBLE DUST POWDER ON THE PROPERTIES OF CONCRETE

The objective of this research was to examine the behavior of concrete when the cement is duly replaced by two different materials viz. Rice Husk Ash and Marble Dust Powder. This project presents the study of concrete mix design (M30mix) using rice husk ash and marble Dust. The problems of disposal of the rice husk ash & Marble Dust also seemed feasible by the results obtained. RHA-MD causes significant increase in the compressive strength of concrete. Compressive strength, Flexural strength test as well as Split tensile Strength were conducted on RHA-MD concrete mix. The Marble Dust Powder used in experiment was obtained from marble processing factory in Triacta Nig Limited, Bauchi State. Rice husk was obtained from rice milling factory in Bauchi Metropolitan. Rice Husk Ash was obtained from Industrial Design Department. The concrete is mixed with RHA and MD in varying percentage of 10-25% with both the materials varying, then properties like compressive strength and split tensile strength are studied. There has been a linear increase in the strength properties of concrete mix up to 25% of RHA-MD there after gradual decrease is observed in the strength properties of the mix. The optimum value of RHA-MD in concrete is 25% with the proportion of RHA being 15% and MD being 10%. The investigation concluded that the concrete containing RHA-MD has better strength characteristics than the normal concrete.