Farayandno

Farayandno

Recycling Waste Molecular Sieves as Sustainable Additives in Concrete: A Technical-Environmental Assessment

Document Type : Original research

Authors
sasan Motaghed 1
ensie bekhradinassab 2
Mohammad Hossein Shabaneh 3
Abdollah Golami Mehr 4
1 Department of Civil Engineering, Faculty of Civil Engineering and Architecture, Shahid Chamran University of Ahvaz, Ahvaz, Iran
2 Chemical Engineering Department, Faculty of Engineering, Behbahan Khatam Alanbia University of Technology, Behbahan, Iran
3 Civil Engineering Department, Faculty of Engineering, Behbahan Khatam Alanbia University of Technology, Behbahan, Iran
4 Persian Gulf Bidboland Gas Refining Company, Behbahan, Iran
10.22034/farayandno.2026.2073631.2020
Abstract
The management of industrial waste poses a significant environmental challenge in the modern era. This study explores the potential of recycling waste molecular sieves as a sustainable additive in concrete production. Using a comprehensive range of advanced analytical techniques, including XRF, XRD, FESEM, TEM, EDAX, BET-BJH, FTIR, TGA, and TPD, the physicochemical properties of this industrial waste were thoroughly characterized. The results revealed that gray and white waste molecular sieves primarily consist of aluminosilicate compounds and are free from hazardous environmental elements. Grinding up to 30,000 rpm significantly increased the amorphous phase, enhancing pozzolanic reactivity. The high specific surface area (140.9 m²/g) and suitable porous structure indicate the high potential of this material for use in concrete. TPD analyses confirmed the presence of strong basic sites, ensuring compatibility with the alkaline environment of cement. These findings represent a significant step toward sustainable industrial waste management and the production of green construction materials.
Keywords
Waste Molecular Sieve
Industrial Recycling
Sustainable Concrete
Environmental Assessment
Pozzolan
Subjects
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