A state-of-the-art review on recycling rubber in concrete: Sustainability aspects, specialty mixtures, and treatment methods

Surehali, Sahil; Singh, Avishreshth; Biligiri, Krishna Prapoorna

doi:10.1016/j.dibe.2023.100171

Cited by 11 publications

(3 citation statements)

References 176 publications

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“…All these materials have been classified as replacements or additives. Due to the wide interest in rubberized concrete, several hundred articles (above 1100 based on the Web of Science, September 2023, combining "recycled rubber" with "concrete") have been published, which can be regrouped into a dozen review articles over the last two years [56][57][58][59][60][61][62][63]. The main results are reported here.…”

Section: Concretementioning

confidence: 99%

Application of Waste Tire in Construction: A Road towards Sustainability and Circular Economy

Hassan,

Rodrigue

2024

Sustainability

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The global demand for rubber is on a steady rise, which is driven by the increasing production of automobiles and the growing need for industrial, medical, and household products. This surge in demand has led to a significant increase in rubber waste, posing a major global environmental challenge. End-of-life tire (ELT) is a primary source of rubber waste, having significant environmental hazards due to its massive stockpiles. While landfilling is a low-cost and easy-to-implement solution, it is now largely prohibited due to environmental concerns. Recently, ELT rubber waste has received considerable attention for its potential applications in civil engineering and construction. These applications not only enhance sustainability but also foster a circular economy between ELT rubber waste with the civil engineering and construction sectors. This review article presents a general overview of the recent research progress and challenges in the civil engineering applications of ELT rubber waste. It also discusses commercially available recycled rubber-based construction materials, their properties, testing standards, and certification. To the best of the authors’ knowledge, this is the first time such a discussion on commercial products has been presented, especially for civil engineering applications.

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Section: Concretementioning

confidence: 99%

Application of Waste Tire in Construction: A Road towards Sustainability and Circular Economy

Hassan,

Rodrigue

2024

Sustainability

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“…To summarize, based on the numerous published papers, there are around 675 articles dealing with the recovery of tire wastes in concrete and/or mortar as aggregates (87% of these publications concern concrete while only 13% are on mortars). Moreover, according to some review papers dealing with the state-of-the-art on this theme (Al-Attar et al 2021;Qaidi et al 2021;Rashad 2016;Surehali, Singh, and Biligiri 2023), it appears that existing studies on concrete consider crumb rubber aggregates at percentages less than 30% by volume. Some works deal with replacements greater than 30% (Aiello and Leuzzi 2010;Alsaif et al 2018;Khaloo, Dehestani, and Rahmatabadi 2008;Marie 2016) and only few studies focus on total replacement (Atahan and Yücel 2012;Batayneh, Marie, and Asi 2008;Khaloo et al 2008;Marie 2016;Medina et al 2017).…”

Section: Recovery Of Elt Tires As Tyre Derived Aggregate For Mortars/...mentioning

confidence: 99%

Recovered Tire-Derived Aggregates for Thermally Insulating Lightweight Mortars

GHORBEL,

Omary,

Karrech

2024

Preprint

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In this study, seven mortar mixes were prepared by replacing natural sand by crumb rubber ,CR, (10%, 25%, 50%, 60%, 75% and 100%). The properties of mortars, both in their fresh and hardened states, were studied. Key characterisitcs, including density, water absorption coefficient, porosity, thermal conductivity, heat capacity, shrinkage/swelling, elastic modulus, compressive strength, flexure strength, fracture energy and performance after exposure to heat, were evaluated. The results obtained showed that as the CR fraction increased, density, initial setting time, and workability decreased but mortars with CR fractions ranged between 25% and 50% are lightweight and can be used for repairing as they fulfill satndards. It was observed that strengths and stiffness decreased with higher CR content while shrinkage increased for CR percentage higher than 60%. However, up to 50% of CR content the mortars obey to the standards for repair. Interestingly, incorporating up to 50% waste tires proved to improve comfort and thermal resistance without affecting thermal inertia. A slight increase in the mass loss is observed when mortars are exposed to high temperatures. Mortars containing CR between 25% and 50% can be classified as lightweight and thermally insulating mortars, suitable for repairing concrete structures in accordance with industry standards.

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“…Consequently, rehabilitation projects of asphalt pavement generate approximately 100 million tons of reclaimed asphalt pavement (RAP) per year [1]. To address this issue, the utilization of RAP has gained significant attention [2]. The recycling of RAP offers benefits such as reduced energy consumption, preserved landfill space, minimized air pollution, conservation of nonrenewable resources, and decreased production costs [3].…”

Section: Introductionmentioning

confidence: 99%

Optimization Design and Mechanical Performances of Plant-Mix Hot Recycled Asphalt Using Response Surface Methodology

Liu,

Wang,

et al. 2023

Materials

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This study aimed to explore the influence of material design parameters on the physical and mechanical properties of recycled asphalt. A Box–Behnken design was employed to determine the optimal preparation scheme for 17 groups of recycled asphalt. The effects of styreneic methyl copolymer (SMC) regenerant content, styrene–butadiene–styrene (SBS)-modified asphalt content, and shear temperature on the mechanical properties of recycled asphalt were analyzed using conventional and high/low-temperature rheological tests. The optimal processing parameters were determined by a response surface model based on multiple response indexes. The results revealed that the SBS-modified asphalt content had the most significant effect on the penetration of recycled asphalt. An increase in SMC regenerant content led to a gradual decrease in the rutting factor, while SBS-modified asphalt content had the opposite effect. The usage of SMC regenerant helped to reduce non-recoverable creep compliance by adjusting the proportion of viscoelastic–plastic components in recycled asphalt. Furthermore, the stiffness modulus results indicated that the addition of SMC regenerant improved the recovery performance of recycled asphalt at a low temperature. The recommended contents of SMC regenerant and SBS-modified asphalt are 7.88% and 150%, respectively, with a shear temperature of 157.7 °C.

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A state-of-the-art review on recycling rubber in concrete: Sustainability aspects, specialty mixtures, and treatment methods

Cited by 11 publications

References 176 publications

Application of Waste Tire in Construction: A Road towards Sustainability and Circular Economy

Application of Waste Tire in Construction: A Road towards Sustainability and Circular Economy

Recovered Tire-Derived Aggregates for Thermally Insulating Lightweight Mortars

Optimization Design and Mechanical Performances of Plant-Mix Hot Recycled Asphalt Using Response Surface Methodology

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