PSI - Issue 70

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ScienceDirect

Procedia Structural Integrity 70 (2025) 335–342

Structural Integrity and Interactions ofMaterials in Civil Engineering Structures (SIIMCES-2025)

Sidhartha Parida a,* , Sanjay P a , Santhosh P a , Karthikeyan V M a , Surendar M a Development of self compacting concrete by replacing fine aggregate with industrial waste

a Department of Civil Engineering, Easwari Engineering College, Ramapuram, Chennai 600 089, India

1. Introduction The sudden development of construction works has raised the level of natural resource demand, especially river sand, which forms a large percentage of the composition of concrete mix. Nevertheless, production of concrete from sand mining poses huge environmental issues by depleting finite resources and disturbing the ecosystem. This study, therefore, investigates the use of industrial byproducts specifically bottom ash and copper slag as sustainable alternatives for river sand. These byproducts, which are usually wasted through energy consuming processes such as Keywords: Industrial By products; Eco friendly Fine Aggregates; Green Building Practices; Self compacting concrete; Waste to Resource Conversion; Sustainable construction practices. © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under the responsibility of International Conference on Structural Integrity Organizers Abstract About 100 million metric tonnes of industrial waste are produced annually in India, including materials like copper slag and bottom ash that are challenging to dispose of due to a lack of regulations. Destructive dumping that degrades the soil and water quality is often the result of this. The study investigates the use of bottom ash and copper slag as environmentally friendly substitutes for natural sand in M30 grade self-compaction concrete. The study shows mixes surpasses other mixes, showing over 20% improvement in compressive strength, 24% in flexural strength and 28% in split tensile strength. The mix using bottom ash and copper slag in M30 grade self-compacting concrete shows superior durability, especially in harsh environments. It enhances resistance to chloride permeability by 30%, significantly reducing the risk of corrosion with enhanced workability. The study shows a potential breakthrough in waste management by evaluating the durability and mechanical qualities ofthis environmentally friendly concrete and contrasting it with traditional mixes. In addition to conserving natural resources, this creative method lowers pollution and encourages sustainable building methods that meet industry demands for environmentally friendly solutions. The findings contribute to environmental sustainability by providing practical steps toward greener construction and addressing critical waste disposal issues in India.

* Corresponding author. Tel.: +91-9940118162 E-mail address: sidhartha0830@gmail.com

2452-3216 © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under the responsibility of International Conference on Structural Integrity Organizers 10.1016/j.prostr.2025.07.061