Experimental investigation of mechanical properties and multi-objective optimization of electronic, glass, and ceramic waste-mixed concrete.

Autor: Mageswari DU; Department of Science and Humanities, RMK Engineering College, Thiruvallur district, Tamil, Nadu, 601206, India., Kareemullah H; Department of Electronics and Instrumentation Engineering, B.S.A Crescent Institute of Science and Technology, Chennai, Tamil Nadu, 600048, India., Jithesh K; Department of Computer Science, Mahatma Gandhi College, Iritty Kannur, Kerala, 670703, India., Boopathi S; Department of Mechanical Engineering, Muthayammal Engineering College, Namakkal, Tamilnadu, 637 408, India. boopasangee@gmail.com., Rachel PMPP; Department of Civil Engineering, Saveetha School of Engineering, Thandalam, Chennai, Tamil Nadu, 602107, India., Ramkumar MS; Department of Electrical and Electronics Engineering, Karpagam Academy of Higher Education, Coimbatore, Tamil Nadu, 641021, India.
Jazyk: angličtina
Zdroj: Environmental science and pollution research international [Environ Sci Pollut Res Int] 2024 Oct; Vol. 31 (46), pp. 57158-57176. Date of Electronic Publication: 2024 May 28.
DOI: 10.1007/s11356-024-33751-7
Abstrakt: The utilization of waste from various sources plays an important role in minimizing environmental pollution and civil construction costs. In this research, the mechanical properties of concrete were studied by mixing electronic waste (EW), glass powder (GW), and ceramic tile waste (CW). The effects of weight percentages of EW, GW, and CW are considered to investigate improvements in mechanical properties such as compressive strength (CS), split tensile strength (STS), and flexural strength (FS) of concrete. Taguchi analysis has been applied to predict the optimum composition of waste mixing percentages. The Multi-Objective Optimization Ratio Analysis (MOORA) techniques are applied to estimate the optimum composition of mixing wastes for maximizing the CS, STS, and FS of concrete. It was observed that 10 wt.% of EW, 15 wt.% of GW, and 30 wt.% of CW are predicted as the optimal mixing combinations to obtain a maximum compressive strength of 48.763 MPa, a split tensile strength of 4.178 MPa, and a flexural strength of 7.737 MPa, respectively. Finally, the predicted optimum waste-mixed weight percentages were used to examine the microstructure and various elements in the concrete using SEM and XRD analysis. When compared to conventional concrete, the optimum waste-mixed concrete has improved its compressive strength (38.453%), split tensile strength (41.149%), and flexural strength (36.215%).
(© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
Databáze: MEDLINE
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