Optimizing Mechanical and Durability Properties of Eco-Friendly Composite Materials Using Recycled Fillers and ML Techniques

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Notice

nThis is an unedited manuscript accepted for publication and provided as an Article in Press for early access at the author’s request. The article will undergo copyediting, typesetting, and galley proof review before final publication. Please be aware that errors may be identified during production that could affect the content. All legal disclaimers of the journal apply.n

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Year : 2025 [if 2224 equals=””]26/08/2025 at 2:36 PM[/if 2224] | [if 1553 equals=””] Volume : 13 [else] Volume : 13[/if 1553] | [if 424 equals=”Regular Issue”]Issue : [/if 424][if 424 equals=”Special Issue”]Special Issue[/if 424] [if 424 equals=”Conference”][/if 424] 05 | Page : 269 309

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    Brahma. Dutt. Purohit, Nitin Kumar Samaiya, Abhishek Verma, Rupal Purhoit,

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  1. Ph.D. Scholar, Professor, Assistant Professor, Seniour Lecturer, Department of Civil Engineering, Jaypee University, Guna, Department of Civil Engineering, Jaypee University, Guna, Department of Civil Engineering, Jaypee University, Guna, Department of Civil Engineering, Govt. Polytechnic, Bhind, Madhya Pradesh, Madhya Pradesh, Madhya Pradesh, Madhya Pradesh, India, India, India, India

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Abstract

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nThe increasing demand for sustainable construction materials has intensified the exploration of recycled fillers as partial or full replacements for natural aggregates in composite materials. This study investigates the mechanical and durability performance of polymer matrix composites incorporating processed recycled fillers derived from construction and demolition (C&D) waste. Three distinct processing methods were employed to prepare the recycled fillers: untreated (URF), single processed (SPRF), and double processed (DPRF), with replacement levels ranging from 0% to 100%. The composite formulations were prepared using the Standard Composite Blending Method (SCBM), and their performance was evaluated through a series of mechanical and durability tests, including compressive strength, tensile strength, curing agent absorption, diffusion coefficient, and workability assessments. The results revealed that increasing recycled filler content led to reductions in strength and workability, primarily due to increased porosity and weak interfacial bonding. However, the double processed recycled filler (DPRF) consistently outperformed the other variants across all tests, demonstrating superior matrix compatibility, reduced permeability, and enhanced mechanical integrity, even at full replacement levels. Notably, the compressive strength increased from 28 to 90 days across all mixtures, indicating continued hydration and strength development. To support experimental findings, machine learning models—Polynomial Regression, Random Forest Regression, and Support Vector Regression (SVR)—were developed to predict mechanical properties based on input parameters such as filler type, replacement ratio, and curing duration. Among these, Polynomial Regression yielded the highest accuracy, with R² values exceeding 0.99 for tensile and flexural strength predictions. These outcomes validate the applicability of data-driven modelling in optimizing sustainable composite formulations. The study concludes that DPRF is a technically and environmentally viable substitute for natural aggregates in composite materials, and that predictive modelling can significantly enhance material design processes by enabling accurate performance estimation.nn

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Keywords: Recycled aggregate composite material, DPRF, normal mixing approach, compressive strength, durability.

n[if 424 equals=”Regular Issue”][This article belongs to Journal of Polymer and Composites ]

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How to cite this article:
nBrahma. Dutt. Purohit, Nitin Kumar Samaiya, Abhishek Verma, Rupal Purhoit. [if 2584 equals=”][226 wpautop=0 striphtml=1][else]Optimizing Mechanical and Durability Properties of Eco-Friendly Composite Materials Using Recycled Fillers and ML Techniques[/if 2584]. Journal of Polymer and Composites. 15/08/2025; 13(05):269-309.

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nBrahma. Dutt. Purohit, Nitin Kumar Samaiya, Abhishek Verma, Rupal Purhoit. [if 2584 equals=”][226 striphtml=1][else]Optimizing Mechanical and Durability Properties of Eco-Friendly Composite Materials Using Recycled Fillers and ML Techniques[/if 2584]. Journal of Polymer and Composites. 15/08/2025; 13(05):269-309. Available from: https://journals.stmjournals.com/jopc/article=15/08/2025/view=0

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[if 424 not_equal=””]Regular Issue[else]Published[/if 424] Subscription Original Research

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Journal of Polymer and Composites

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[if 344 not_equal=””]ISSN: 2321–2810[/if 344]

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Volume 13
[if 424 equals=”Regular Issue”]Issue[/if 424][if 424 equals=”Special Issue”]Special Issue[/if 424] [if 424 equals=”Conference”][/if 424] 05
Received 29/04/2025
Accepted 30/06/2025
Published 15/08/2025
Retracted
Publication Time 108 Days

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