Rheological Property of Bitumen Modified by the Mixture of the Mechanochemically Devulcanized Tire Rubber Powder and SBS

Zhu, Xiaoqing; Lu, Canhui; Liang, Mei

doi:10.1061/(asce)0899-1561(2009)21:11(699)

Cited by 18 publications

(3 citation statements)

References 23 publications

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“…22% of weight is synthetic fibre, 18% of weight is steel wire, and more than 60% of weight is rubber mixture, all of, which were produced from non-renewable resources (Dong et al 2011). It was discovered that tyre rubber crumbs can be used for bituminous binders and asphalt mixtures (Zhang et al 2010;Çelik, Atiş 2008;Lee et al 2008;; Putman, Amirkhanian 2010; Xiao-qing et al 2009). Crumbed rubber (CR) from vehicle tyres, mixed in with concrete, changes the properties of concrete (Ling 2011(Ling , 2012Gesoğlu, Güneysi 2011;Wong, Ting 2009;Rodezno et al 2005;Vydra et al 2012;Muhammad et al 2012;Najim, Hall 2012;Sukontasukkul, Tiamlon 2012).…”

Section: Introductionmentioning

confidence: 99%

Tyre Rubber Additive Effect on Concrete Mixture Strength

Grinys

Sivilevičius

Daukšys

2012

Journal of Civil Engineering and Management

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This article describes the observed and examined effect of crumb rubber on the strength (compressive, bending and splitting tensile) of concrete. The tests have shown that the change in the strength of concrete with crumb rubber waste additives can be forecasted from exponential equations. These relationships enable to foresee the regularities of strength properties when a certain amount of crumb rubber of a certain size fraction is added to concrete. The obtained exponential equations show that concrete compressive, flexural and splitting tensile strengths decrease with increasing crumbed rubber additive amount. The testing has also shown that the addition of a small amount of crumbed rubber slightly increases (7%) the tensile splitting strength. The reason is better adhesion of the cement stone with rubber particles compared to the adhesion of sand, which was replaced by crumbed rubber. With higher content of crumbed rubber additive in the concrete, the tensile splitting strength decreases due to the significant increase of entrained air content and lower density.

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Section: Introductionmentioning

confidence: 99%

Tyre Rubber Additive Effect on Concrete Mixture Strength

Grinys

Sivilevičius

Daukšys

2012

Journal of Civil Engineering and Management

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“…Limited studies have considered applying warm-mix technology additives (WMA) to the RTR-MBs in order to lower the mixing and compaction temperatures and allow better workability and handling , Akisetty et al 2011, Rodríguez-Alloza et al 2013). On the other hand, fewer studies have considered using devulcanised rubber by the cleavage of cross-linking sulphur bonds in rubber vulcanizates without cleavage of the polymer chain bonds, this resulted in improving the dispersion and interfacial adhesion of RTR and binder (Dong et al, 2011;Liang, 1999;Liang & Woodhams, 1998;Xiao-qing et al, 2009). Even though, utilizing devulcanized rubber as bitumen modifier showed enhanced properties and storage stability, there are very limited published studies in this area because of the high level of contaminated fumes and unpleasant odours associated with the processing procedure of in situ devulcanization (Dong, Li et al 2011).…”

Section: Introductionmentioning

confidence: 99%

An investigation on using pre-treated tyre rubber as a replacement of synthetic polymers for bitumen modification

Subhy

Presti

Airey

2015

Road Materials and Pavement Design

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“…Another limitation of the SBS-polymer-modified asphalt is the phase separation tendency during high-temperature storage [168,169]. Various additives have been used to improve the storage stability of SBS polymer-asphalt blends, including phosphorus-based compounds [169], montmorillonite composites [69,170], sulfur-based additives [171], polystyrene [172], kaolinite clay [172], tall oil pitch (TOP) [173], GMA [174], and ground tire rubber (GTR) [175].…”

Section: Thermoplastic Elastomersmentioning

confidence: 99%

A Comprehensive Literature Review on Polymer-Modified Asphalt Binder

Emtiaz,

Imtiyaz,

Majumder

et al. 2023

CivilEng

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Due to periodic variations in temperature and heavy traffic loading, hot-mix asphalt (HMA) pavements undergo considerable distress during their service life. The rheological properties of asphalt binder, when subjected to complex physical and chemical processes, make it stiff and sometimes brittle, which ultimately plays a huge part in pavement deterioration. This phenomenon is commonly known as asphalt aging. Incorporating polymer modifiers with virgin asphalt can work as an effective means to change the binder properties and alleviate the issues related to asphalt aging. Different types of polymers, including elastomers, plastomers, and reactive polymers, can mixed in different combinations with the virgin asphalt to create polymer-modified binders (PMBs). In general, polymers are typically added to the virgin asphalt binder in PMB manufacturing at weight percentages ranging from 3% to 7%. Previous research suggests that many polymer-modified binders (PMBs) show great resiliency and perform extremely well during field and laboratory testing, although the complex nature of asphalt itself makes it significantly difficult to understand the relationship and compatibility of the asphalt–polymer system. This paper aims to develop a comprehensive literature review on the chemical aspects, microscopic structure, and compatibility of polymers with virgin asphalt. It was found that swelling, storage stability, blend morphology, and the polymer mixing technique play a great role in the compatibility of asphalt–polymer systems. Thermoplastic elastomers (e.g., styrene–butadiene–styrene) and plastomers (e.g., ethylene–vinyl acetate) are the most used polymer modifiers for asphalt binders. The compatibility of the polymer–asphalt system can be improved by sulfur vulcanization, antioxidants, hydrophobic clay minerals, functionalization, and reactive polymers, among other techniques.

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Rheological Property of Bitumen Modified by the Mixture of the Mechanochemically Devulcanized Tire Rubber Powder and SBS

Cited by 18 publications

References 23 publications

Tyre Rubber Additive Effect on Concrete Mixture Strength

Tyre Rubber Additive Effect on Concrete Mixture Strength

An investigation on using pre-treated tyre rubber as a replacement of synthetic polymers for bitumen modification

A Comprehensive Literature Review on Polymer-Modified Asphalt Binder

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