USE OF CONSTRUCTION RENOVATION AND DEMOLITION WASTE IN PARTIAL REPLACEMENT OF COARSE AGGREGATE IN M20 CONCRETE

N. Sai Trinath Kumar, Chava Siva

Abstract: Concrete is a pourable mix of cement, water, sand, and gravel that hardens into a super strong building material. In the recent decades demolition of old buildings, renovation of construction gave rise to gargantuan amounts of construction and demolition waste. Even the waste produced by industries and households got amplified. So experiments were carried out in the laboratory to scrutinize a concrete made of partial replacement of coarse aggregate with construction and demolition waste materials like ceramic tiles waste, plastic debris, crushed bricks. The resultant concrete thus produced was tested on the following parameters like compressive strength, workability, flexural strength. The results thus obtained are compared with a plain cement concrete. By using low weight materials like plastic debris we got a light weight concrete. The workability of concrete produced with construction waste when compared with plain cement concrete is not reliable but it produced a considerable increase in the compressive strength. So we have increased quantity of plastic debris and deducted some quantity of other waste, by this the workability standards are maintained .Hence by using required quantities strength and workability are acquired. Economy plays a imperative role in any construction, by partially replacing of coarse aggregate with construction and demolition waste, plastic waste the cost of construction can be reduced. These wastes can cause pollution that effects human health. Using these wastes effectively in construction activities the rate of pollution can also be controlled. Even the properties of concrete can also be improved.

Keywords: Construction and Demolition waste, Plastic Debris, Compressive Strength, Flexural Strength, Workability.

DOI: https://doi.org/10.15623/ijret.2015.0410061