Experimental study on high strength concrete (M60) with reused E-waste plastics

Abstract

Abstract High strength concrete is gaining popularity over normal strength concrete in the design of various structural components because of its advantageous nature. American Concrete Institute and Indian Standard Institute define the high strength concrete as having compressive strength greater than 41.4 MPa and 60 MPa or more respectively. The basic difference between high strength and normal strength concrete relates to the compressive strength that refers to the maximum resistance of a concrete sample to applied pressure and is the most important characteristic and has prime importance to state whether the concrete is suitable for construction or not, though other properties like tensile and flexural strength are being tested for and hence with higher compressive strengths the concrete becomes more desirable. The super plasticizer gives the concrete adequate workability at low water-cement ratios, leading to concrete with greater strength and the addition of super plasticizers can also be implied to increase the workability for the desired water content or decrease the water content for the desired workability. The main objective of the present study is to understand the behaviour of M60 grade high strength concrete by replacing the E-waste plastics in varying percentage along with super plasticizer by reusing the E-waste plastics in the required shape and properties. Coarse aggregates were partially replaced with different percentages of E-plastic by volume ranging from 0 to 16%. The compression, flexural and split tensile strength of concrete contain E-waste plastic retain more when compared to conventional concrete for 28 days. However strength noticeably increases when the E-waste plastic content percentage is high.