PROPERTIES OF SFRC WITH PARTIAL REPLACEMENT OF CEMENT & SAND BY C.O.T & I.O.T
Chaithanya M.B, Shashi kumar N.V, G Narayana, B.K Narendra
Abstract: Most important problem facing mankind today is how best to utilize natural resources to meet human needs and nurture economic growth without exhausting the resources and endangering the environmental integral on which life economic prosperity and our security depend. Due to rapid growth of construction activity concreting materials became scarcity such as sand and cement, so alternative material such as iron ore tailing and copper ore tailing which is a waste produced in production of steel and copper is used as partial replacement as cement and sand respectively, and hence to avoid the environmental pollution. This experimental work is taken up to study the effect of volume replacement on concrete strength of concrete with different percentage replacement levels. This experimental investigation deals characterization of materials including iron ore tailing and copper ore tailing. The properties of materials are incorporated in concrete mix design and mix design as per procedure mentioned in IS 1026 – 2009. The fresh properties of the mixes and its hardened properties namely compressive strength for different curing periods of 3, 7 and 28 days, tensile strength for curing period of 7, 14 and 28days, and flexural strength for curing period of 28 and 56days are evaluated. Total eight different mixes viz 0%, 15%, 17.5%, 20%, 22.5%, 25%, 27.5% and 30% of replacements for both cement and sand with COT and IOT respectively, with 0.6% of steel fibres, for M20 grade of concrete. Total 192 specimens had casted, out of which 72 cube specimens for compressive strength, 72 cylinder specimens for tensile strength and 48 beam specimens for flexural strength.
Keywords: COT- Copper ore tailing, IOT- Iron ore tailing, Material properties, compressive strength, split Tensile strength, flexural strength, SFRC-Steel Fibre Reinforced concrete
DOI: https://doi.org/10.15623/ijret.2015.0408025
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