STRENGTH PARAMETERS OF SELF COMPACTING CONCRETE WITH PARTIAL REPLACEMENT OF CEMENT BY FLY ASH AND SAND BY ROCK CRUSHED POWDER.

Prof
Assistant Professor, Dept, of civil Engineering JAGMIT, Jamkhandi- 587301 BE Student, Dept, of civil Engineering JAGMIT, Jamkhandi- 587301 , IN

Ms S. B. Kori
Assistant Professor, Dept, of civil Engineering JAGMIT, Jamkhandi- 587301 BE Student, Dept, of civil Engineering JAGMIT, Jamkhandi- 587301 , IN

Abhishek Kulkarni
Assistant Professor, Dept, of civil Engineering JAGMIT, Jamkhandi- 587301 BE Student, Dept, of civil Engineering JAGMIT, Jamkhandi- 587301 , IN

Ashok Halolli
Assistant Professor, Dept, of civil Engineering JAGMIT, Jamkhandi- 587301 BE Student, Dept, of civil Engineering JAGMIT, Jamkhandi- 587301 , IN

Iranna Mudalagi
Assistant Professor, Dept, of civil Engineering JAGMIT, Jamkhandi- 587301 BE Student, Dept, of civil Engineering JAGMIT, Jamkhandi- 587301 , IN

Shriram Joshi
Assistant Professor, Dept, of civil Engineering JAGMIT, Jamkhandi- 587301 BE Student, Dept, of civil Engineering JAGMIT, Jamkhandi- 587301 , IN

Keywords: Self compacting concrete, conventional self compacting concrete, fly ash, rock crushed powder, super plasticizers, water, cement, sand, aggregate, compressive strength, split tensile strenght

Abstract

Construction activity in India during the last decades has more than doubled. The utilization concrete all over the globe has made the constituents of this composite material to be in great demand. Concrete has been the most preferred construction material for over five decades. It is being increasingly used day by day all over the world due to its versatility, mould ability, high compression strength and many more advantages. The problems of how to meet the increasing demand and cost of concrete in sustainable manner is a challenge in the field of civil engineering and environmental studies.Necessity of use of alternative material is the need of the hour because of environmental and economic reason it requires thinking about the use of industrial waste as alternative materials in concrete production, which not only reduce the cost of production of concrete but also control the pollution leading to sustainable development. Concrete as a construction material has a large potential all over the world and net only to consumption of water. Aggregate contributing about 70%to80% of concrete mass, hence there exists a vast demand for aggregate.

River sand is becoming a very scarce material. The sand mining from our rivers have become objectionably excessive in view of both economy and environment. Rock crush powder (RCP) can be used as an alternative to sand and its effect on the strength and properties of fresh concrete are needed to be investigated. Unfortunately limited research has been conducted to explore the potential utilization of RCP in concrete mixture. In view of the above investigation it is an attempt towards the assessment of suitability of use of Fly Ash (FA) and Rock Crushed Powder (RCP) in concrete production. The present experimental work consists of experimental studies are carried out to understand the strength characters of self compacting concrete with two replacement 10% and 20% of Fly Ash for cement and four different replacement levels for RCP for sand i.e.(0%,25%,50%,75%,100%.) in comparison to Conventional SCC
for this experimental work the grade concrete used is M50.

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