International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395 -0056
Volume: 04 Issue: 03 | Mar -2017
p-ISSN: 2395-0072
www.irjet.net
EXPERIMENTAL INVESTIGATION ON PERFORMANCE OF RECYCLED CONCRETE AGGREGATE AS COARSE AGGREGATE GOPALSAMY.P1, POORNIMA.E2, ABDUL RAZICK.M3, YASAR ARAFATH.N4, SUNDAR.V5, 1 2
Assistant Professor, Dept. of Civil Engineering, M.A.M. college of Engineering & Technology, Tamilnadu, India Assistant Professor, Dept. of Civil Engineering, M.A.M. college of Engineering & Technology, Tamilnadu, India 3UG Student, Dept. of Civil Engineering, M.A.M. college of Engineering & Technology, Tamilnadu, India 4UG Student, Dept. of Civil Engineering, M.A.M. college of Engineering & Technology, Tamilnadu, India 5UG Student, Dept. of Civil Engineering, M.A.M. college of Engineering & Technology, Tamilnadu, India
---------------------------------------------------------------------***--------------------------------------------------------------------the process of recycling and this is a solution in many areas. Abstract - In most of the construction industry and in urban areas, many concrete structures like buildings, bridges and roads, water tanks are razed after a period of time into their service life for purpose of replacement and also due to natural disasters, blasting of buildings, demolition of unused structures, etc. As a result large amount of demolished concrete is generated as waste. Most of the demolished waste is disposed off by dumping it as land fill. It will affect the soil properties and also increase transportation cost. It is becoming increasingly difficult to obtain good quality aggregate at reasonable prize. The increase in cost is mainly due to the cost transportation cost and few quarries. Considering the present situation the best solution would be to reuse the demolished concrete. Our project deals with an experimental investigation on the effective of replacement of natural aggregates by recycled aggregates in different percentages like ( 5%, 15%, 25%, 35%, 45%, 55%, 65%, 75%, 85% and 95%) on the strength characteristics of concrete. Key Words: Demolition, Recycling, Disasters, Strength.
1. INTRODUCTION The aim of designing a structure is to fulfill its intended purpose during its intended life time adequate serviceability in terms of stiffness, durability and economy. Safety implies that the like hood of partial or total collapse of the structure is acceptably low not only under the normal expected loads but also under abnormal but portable over loads such as due to earthquake or extreme wind. Collapse may occur due to various possibilities such as exceeding the load bearing capacity, overturning, sliding, buckling, fatigue fracture, etc. Serviceability implies satisfactory performance of the structure under service loads, without discomfort to the user due to excessive deflection, cracking, vibration, etc. other considerations under the preview of Serviceability are durability, impermeability, acoustic and thermal insulation etc. Conservation of natural resources and preservation of environment is the essence of any development. Nature has a way of clearing off some of mess by process of biodegradation but not certain products have come up which are non-biodegradable. One way of reducing such wastes is Š 2017, IRJET
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Rapid growth in population and urbanization are pushing the growth in construction, especially in the developing countries and old buildings are being demolished to be replaced with new ones. One of the problems arising from continuous technological and industrial development is the disposal of waste materials. Following this process in discriminately leads to two basic problems on the one had there is an urgent need to fruitfully construction debris, which is often simply thrown away have used has been filling materials, without considering the environment need of the problems on the other hand, the industry is facing with the non-availability of good quality aggregates with reasonable distances and deforestation from the thoughtless mining for aggregates from quarries. Recycling of the construction wastes is considering as the need of the hour. Research in different countries has suggested the possibility of reusing the hard inert materials in the construction wastes .Broken concrete and bricks mostly from buildings can be used to give recycled aggregate concrete and similarly broken pavement can be used to build reclaimed asphalt pavement. In our project we are using recycled aggregates to find the strength characteristics of concrete.
2. MATERIALS A brief specification of the materials used in the specimen and their properties are explained. 2.1. CEMENT Ordinary Portland cement of 43 grades in one lot was procured and stored in air tight container. The cement used was fresh i.e. used within three months of manufacture. It should satisfy the requirement of IS12262. The properties of cement are determined as per IS4031:1968 & results are tabulated
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