ISSN 2319-5347, ISI Impact Factor: 0.763

VOLUME 03 NO. 02 APRIL 2014:

Title:        Performance of recycled waste concrete and its applicability in construction industry
Authors:  Fatima Naznin, Mossa Farhana Jesmin, Muhammad Harunur Rashid, Md. Mafuzur Rahaman
Abstract:  Urbanization demands the renovation of the old structures commonly in the developing countries, resulting in a huge amount of construction debris annually. The construction debris due to failure of aged or faulty structures is considered as waste concrete which are normally composed of concrete rubble, bricks and tiles, sand and dust, timber, plastics, cardboard and paper, and metals. Recycled waste concrete is manufactured from waste concrete by recycling the aggregates of waste concrete. As well as the demand for natural coarse aggregate is also increasing, the scarcity of it may happen. So, proper recycling of waste concrete is important to have an alternative material for utilization in concrete and to reduce the high consumption of natural aggregate. To achieve the suitability of recycled waste concrete the strength and durability of it are confirmed first. In this work, five type of sample are made by varying the percentage of recycled and fresh coarse aggregates( brick aggregates and stone chips) in which workability is constant. Compressive and tensile strength decreases in accordance with increasing amount of recycled coarse aggregate at 7, 28 and 90 days. (Rapid Chloride Permeability Test) is performed on hardened concrete.

Keywords:  Waste Concrete, Recycling, Mechanical Properties, Permeability, Usability
Page No:    172-175

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