Author : Shridharmurthy H N 1
Date of Publication :17th May 2017
Abstract: The main objective is to study the mechanical properties of a high strength concrete by using Rice Husk Ash (RHA) instead of different replacement in levels of an Ordinary Portland Cement (OPC). The standard cylinders (300mm height x 150mm dia), prisms (100mm X 100mm X500mm) and cubes (150mm X 150mm X 150mm) were casted. In all specimens having M50 and M40 grade mix are casted and tested. The comparison is done between the RHA of both grades with high strength concrete of various amount replacement of the cement viz i.e, 15%, 10% ,5%, 0% and along with high strength concrete without RHA. The compressive test is done for various number of days. A interesting and quite encouraging results are obtained of mechanical properties of RHA for a particular number of days. By increasing the Rice Husk Ash fineness, enhanced strength of the blended concrete are compared to coarser Rice Husk Ash and control OPC mixture. Increase in water demand in concrete by incorporation of the Rice Husk Ash. Up to 20% of cement can be replaced by RHA without adversely affecting in the strength and it shows excellent improvement in the strength.
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