Sustainability Enhancement through High-Dose Recycled Tire Steel Fibers in Concrete: Experimental Insights and Practical Applications

Asad Zia, Pu Zhang (), Ivan Holly and Jaroslav Prokop
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Asad Zia: School of Water Conservancy and Civil Engineering, Zhengzhou University, Zhengzhou 450001, China
Pu Zhang: School of Water Conservancy and Civil Engineering, Zhengzhou University, Zhengzhou 450001, China
Ivan Holly: Department of Concrete Structures and Bridges, Slovak University of Technology, 811 05 Bratislava, Slovakia
Jaroslav Prokop: Department of Concrete Structures and Bridges, Slovak University of Technology, 811 05 Bratislava, Slovakia

Sustainability, 2023, vol. 15, issue 22, 1-31

Abstract: This study investigates the viability of incorporating high doses of recycled tire steel fibers (RSFs) in concrete to enhance sustainability. To address this, RSFs are incorporated at volume fractions ranging from 1% to 1.75% in the concrete mixture. The study evaluates various performance parameters, including workability, elastic modulus, compressive strength (CS), split tensile strength (SS), flexural strength (FS), linear shrinkage (LS), and water absorption (WA). Results show a 10% improvement in SS and a 4% improvement in FS compared to plain concrete (0RFRC). Additionally, RSF-reinforced concrete (RFRC) exhibits a maximum 15% reduction in LS. Water absorption slightly increases, and adverse effects on CS and workability are noted with high RSF doses. RFRC can impact the cost of rigid pavements due to reduced depth requirements. Disposing of discarded tires and their by-products has emerged as a substantial environmental challenge, obstructing progress toward achieving net-zero targets. As a sustainable solution, this study explores the potential utilization of secondary materials derived from discarded tires within the construction industry. In conclusion, this research highlights the significant potential of utilizing RSFs to enhance the sustainability of infrastructure and contribute to more eco-friendly construction practices.

Keywords: waste recycling; fiber-reinforced concrete; waste tires; sustainability; durable materials; concrete pavements (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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