EXPERIMENTAL STUDY ON HEAVY WEIGHT CONCRETE BY PARTIAL REPACEMENT OF COARSE AGGREGATE WITH HEMATITE

Heavy weight concrete or high density concrete is commonly used for radiation shielding either in nuclear power plant or in radiation therapy units. It can also be used as ballast in offshore location such as pipelines. Heavy weight concrete is designed by using heavy weight aggregate such as hematite, magnetite, barite, etc. The rise in construction activity has resulted in an increase in demand for variety of materials. This research into alternative material for used as concrete ingredient that are not inferior to conventional material. The work focuses on the partial replacement of course aggregate with hematite aggregate in a varying percentage of M30 concrete mix. In this work, conventional coarse aggregate is partially replace with hematite aggregate that passes through 20mm IS sieve size. Hematite replaces in a percentage of 25%, 50%, and 75%, and compressive strength are determined.