Title: Green environmental sustainability development in construction industry using response surface methodology

Authors: Murugaboopathy Rajagopal; Ganesan Karuppiah

Addresses: Department of Civil Engineering, P.A.C. Ramasamy Raja Polytechnic College, Rajapalayam, Tamilnadu, 626108, India ' Department of Civil Engineering, Sudharsan Engineering College, Pudukkottai, Tamilnadu, 622501, India

Abstract: The purpose of this study was to investigate an effective method for the partial replacement of cement using waste materials to create green environmental sustainability in the construction industry. The tests were performed to predict the strengths of concrete by replacing the cement with waste materials, such as GSA (X1: 6%-10%), GGBS (X2: 20%-50%) and PPF (X3: 0.1%-0.5%) using RSM. The experimental variables were optimised using Design-Expert 8.0.7.1 software package. The optimum replacement of cement was observed at 7.5%-8% (GSA), 35% (GGBS) and 0.3% (PPF). Under this situation, the optimum cube compressive strengths at 7 and 28 days were 18.76-18.83 N/mm² and 30.91-31.06 N/mm²; the cylinder splitting tensile strengths at 7 and 28 days were 2.32-2.39 N/mm² and 4.32-4.41 N/mm² respectively and the prism flexural strengths at 7 and 28 days were 3.37-3.49 N/mm² and 5.24-5.32 N/mm² respectively.

Keywords: compressive strength; flexural strength; groundnut shell ash; ground granulated blast furnace slag; polypropylene fibre; response surface methodology; splitting tensile strength.

DOI: 10.1504/IJESD.2019.098639

International Journal of Environment and Sustainable Development, 2019 Vol.18 No.1, pp.13 - 44

Received: 20 Jun 2017
Accepted: 29 Mar 2018
Published online: 29 Mar 2019 *

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