Lightly pyrolyzed tire rubber used as potential asphalt alternative

Wu, Xiaoyu; Wang, Shifeng; Dong, Ruifeng

doi:10.1016/j.conbuildmat.2016.02.208

Cited by 62 publications

(14 citation statements)

References 29 publications

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“…However, a reduction was noticed in the viscosity and high-temperature rheological properties due to the lower molecular weight and higher aromatics content in the TPO. Similar findings on the effects of TPO on the physical and rheological properties of bitumen have been reported [3,4,6]. Recent study has also showed that the incorporation of TPO with other modifiers such as polymers and nanomaterials exhibited an improvement in the physical and rheological performance of TPO-modified bitumen particularly at high temperature conditions [7].…”

Section: Introductionsupporting

confidence: 78%

Optimizing the Physical Properties of Waste Denim Fiber-Modified Rubberized Bitumen Through Response Surface Methodology

Al-Sabaeei

Napiah

Salaheen

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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In this study, waste denim fiber (WDF) was used as a modifier to enhance the properties of bitumen incorporating tire pyrolysis oil (TPO). The designing of the experiment, analysis data, modeling and multi-objective optimization performed using response surface methodology (RSM). Base bitumen was modified with 0%, 5%, 10% and 15% TPO and 0%, 2%, 4% and 6% of WDF using high shear mixer. The interaction effects of TPO and WDF on the penetration, softening point and temperature susceptibility of bitumen were evaluated. Results showed that the addition of TPO and/or WDF has a significant effect on the consistency and temperature susceptibility of base bitumen. RSM analysis exhibited high degrees of correlation (R2) of 0.982, 0.973 and 0.947 for the dependent variables’ penetration, softening point and temperature susceptibility, respectively. That indicates there is an adequate agreement between models developed by RSM and experimental results. The numerical multi-objective optimization showed that optimum properties can be achieved with 8.4% of TPO and 6% of WDF.

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Section: Introductionsupporting

confidence: 78%

Optimizing the Physical Properties of Waste Denim Fiber-Modified Rubberized Bitumen Through Response Surface Methodology

Al-Sabaeei

Napiah

Salaheen

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…Tires and used rubbers as present potential problems, due to the large volume produced, the durability, and the releasable harmful components, are under consideration in many countries. They are highly flammable, durable, and nonbiodegradable and consume valued space in landfills and create enormous risks. − Synthetic Styrene Butadiene Rubber (SBR) is widely used in the rubber industry, especially in different vehicles tire treads with attention to suitable mechanical and dynamic properties . The used rubbers in scrap tires as highly flammable organic materials have high volatile and fixed carbon contents with a heating value greater than the classic fuels.…”

Section: Introductionmentioning

confidence: 99%

The Consideration of Different Effective Zeolite Based Catalysts and Heating Rate on the Pyrolysis of Styrene Butadiene Rubber (SBR) in a Stirred Reactor

Abbas-Abadi

Nekoomanesh‐Haghighi

2017

Energy Fuels

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The pyrolysis products as well as composition of the condensed products generated from Styrene Butadiene Rubber (SBR) degradation have been investigated with reference to different zeolite based catalysts. The effects of different catalysts containing used FCC, gallium promoted used FCC (Ga/FCC), HZSM-5, and mordenite have been studied on the SBR degradation using a stirred semi-batch reactor. Main products obtained were light hydrocarbons within the gasoline range, though the Ga/FCC and used FCC tended to produce more condensed products with aromatics as the main product. Meanwhile, the nonisothermal mass losses of SBR were measured using a thermogravimetric analyzer (TGA) at heating rates of 5, 15, 30, 45, and 90 °C min −1 until the furnace wall temperature reached 600 °C. The TGA degradation trends of SBR were in between the TGAs of a usual plastic and polybutadiene rubber. Activation energies decreased by increasing the heating rate (154.7−131.5 kJ mol −1 ), although activation energy of the fast pyrolysis shows a significant decrease in comparison with the others. In slow pyrolysis, the double bonds in SBR chains could prepare the proper media for the cross-link mechanism, while phenyl groups boost the chain scission and unzipping mechanisms. In other words, the fast pyrolysis follows the chain scission and unzipping mechanisms along the most times of degradation.

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“…This indicates that light pyrolysis can be categorized as a method combining reclaiming and pyrolysis processes. This allows production of new group of waste tires recycling products, which could found application as bitumen modifiers [92], semi-reinforcing fillers [93] or reactive plasticizers [94,95]. Gasification is another interesting approach which should advance the application of microwave-assisted thermal decomposition in near future.…”

Section: Waste Rubber Pyrolysismentioning

confidence: 99%

Microwave treatment in waste rubber recycling – recent advances and limitations

Formela¹,

Hejna²,

Zedler³

et al. 2019

Express Polym. Lett.

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Environmentally-friendly microwave heating is increasingly used in polymer chemistry and technology. The selectivity and highly efficiency in the heat transfer present a huge advantage in systems based on recycling, improving their productivity and economic competitiveness. In case of the industrial recycling of waste rubbers, especially end-of-life tires, microwave-induced devulcanization and pyrolysis are nowadays considered as promising approaches. This work aims to report the recent progress in microwave treatments of vulcanized rubbers with different compositions. Special attention is focused on the correlation between microwave processing parameters and devulcanization/pyrolysis efficiency, which have a significant impact on the structure-property relationships of the obtained products. Moreover, the main challenges affecting the future of the industrial application of the microwave technology in rubber recycling are also discussed.

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Lightly pyrolyzed tire rubber used as potential asphalt alternative

Cited by 62 publications

References 29 publications

Optimizing the Physical Properties of Waste Denim Fiber-Modified Rubberized Bitumen Through Response Surface Methodology

Optimizing the Physical Properties of Waste Denim Fiber-Modified Rubberized Bitumen Through Response Surface Methodology

The Consideration of Different Effective Zeolite Based Catalysts and Heating Rate on the Pyrolysis of Styrene Butadiene Rubber (SBR) in a Stirred Reactor

Microwave treatment in waste rubber recycling – recent advances and limitations

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