Performance evaluation of bitumen modified with pyrolysis carbon black made from waste tyres

Feng, Zheng; Rao, Wenyu; Chen, Chong; Tian, Bo; Li, Xinjun; Li, Peilong; Guo, Qilong

doi:10.1016/j.conbuildmat.2016.02.143

Cited by 65 publications

(22 citation statements)

References 22 publications

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“…Thus, the results indicate that CBNPs have enhanced the elastic behaviour of the asphalt binder and have influenced the asphalt binder's rheology. It has also been reported in literature that carbon black-modified asphalt binder exhibits more elastic behaviour than conventional asphalt binders [5].…”

Section: Dynamic Shear Rheological Propertiesmentioning

confidence: 79%

“…The tube was placed vertically in an oven for 48 h at 163 • C and then it was cooled in refrigerator at −7 • C for 4 h. The tube was finally cut in three equal sections and, after melting the samples, a softening point test was performed for top and bottom portions. A difference of softening point less than 2.5 • C is a widely used criterion for considering the blend to be stable at high temperatures [5].…”

Section: Storage Stabilitymentioning

confidence: 99%

“…Among the carbonaceous materials, different researchers have utilized carbon black because of its easy availability. It has been learnt that high dosages of carbon black in asphalt can increase the rutting resistance and lessen the temperature susceptibility [2][3][4][5][6][7][8][9][10][11]. It is also said that the performance of carbon black depends upon its structure, particle size and surface area [12,13].…”

Section: Introductionmentioning

confidence: 99%

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Performance Evaluation of Carbon Black Nano-Particle Reinforced Asphalt Mixture

et al. 2018

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Applications of nanotechnology in the pavement industry have increased rapidly during the last decade in order to enhance a pavement’s sustainability and durability. Conventional asphalt binder generally does not provide sufficient resistance against rutting at high temperatures. Carbon black nano-particles (CBNPs, produced by perennial mountain trees’ carbonization) were mixed into the performance grade (PG) 58 asphalt binder in this study. Conventional asphalt binder tests (penetration, ductility and softening point), frequency sweep, performance grading, and bitumen bond strength tests were conducted to study the enhancement in the properties of asphalt binder. Dynamic modulus and wheel tracking tests were also performed to investigate the effect of CBNPs on asphalt mixture properties. Experimental results demonstrated that preferred dosage of CBNPs in asphalt is 10% by weight of the bitumen. Results of scanning electron microscopy (SEM) and storage stability tests validated homogenous and stable dispersion of CBNPs in the asphalt binder. Asphalt mixtures became stiffer and resistant to rutting at high temperatures by addition of CBNPs in asphalt binder. Significant improvement in bitumen aggregate bond strength was also observed by incorporating CBNPs. It is concluded that CBNPs can be used to effectively enhance the high-temperature performance and consequently the sustainability of flexible pavements.

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Section: Dynamic Shear Rheological Propertiesmentioning

confidence: 79%

Section: Storage Stabilitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Performance Evaluation of Carbon Black Nano-Particle Reinforced Asphalt Mixture

et al. 2018

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“…Carbon black is an excellent light-shielding agent and thermal oxygen stabilizer. Due to the degradation of rubber powder and the release of carbon black, the thermal oxygen aging and UV aging properties of asphalt can be significantly improved, so the high-temperature deformation resistance and elastic recovery ability of asphalt improve [ 42 ].…”

Section: Resultsmentioning

confidence: 99%

Influence of Different Aging Environments on Rheological Behavior and Structural Properties of Rubber Asphalt

2020

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Research on asphalt aging properties mainly focuses on temperature and ultraviolet (UV) radiation, while water, acid and salt media in natural environment are often ignored. According to the aging simulation of self-made UV environment chamber, the influence of the coupling effect of different media and UV radiation on rubber asphalt properties was analyzed through physical properties, rheological properties and micro characteristics, and the structural properties of asphalt were revealed. The results indicated that different media can accelerate the aging of rubber asphalt. The penetration, creep rate and non-recoverable creep compliance of asphalt decreased, while the softening point, rutting factor, recoverable rate, fatigue factor and stiffness modulus increased. The coupling effect between acid and UV radiation had the most impact on asphalt rutting and fatigue cracking. The rubber asphalt performed better at high-temperature after aging, and it was more prone to fatigue damage and performed worse at low-temperature. Through the oxygen absorption reaction causing asphalt aging, the intensity of the absorption peaks of the carbonyl and sulfoxide groups increased and the light components of the asphalt transitioned to heavy components under UV radiation. These media intensified this process, which resulted in the gradual transformation of the asphalt colloid structure into a gel type. The carbon black contained in the waste rubber powder made the rubber asphalt exhibit better anti-aging properties.

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“…Through the comprehensive comparison of the simulation results with the triaxial CD shear test of the indoor rubber sand, it was demonstrated that when the volume content of rubber particle was between 30 and 40%, the load-deformation capacity relationship was most stable. Feng 26 prepared two pyrolytic carbon blacks from waste tires. The thermal aging and photo-oxidative aging of PCB-modified asphalt were evaluated using the methods of melt blending, film furnace test, pressure aging container, and natural aging.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Basic Properties of a Green New Coal Mine Grouting Reinforcement Material

Zhu

Zhang

et al. 2020

ACS Omega

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Waste tires are internationally recognized as hazardous waste. Many waste tires storing in the open air for a long time will not only waste the land resources but also pollute the environment after the incineration. Meanwhile, the cumulative accumulation of fly ash in China has also been one of the largest sources of solid waste in coal mines. Under the action of high winds, the accumulated fly ash forms flying dust, which pollutes the environment and endangers human health. Herein, a new type of grouting material for floor reinforcement was developed based on solid waste products using the waste tire rubber particles and fly ash. Using this new material, disaster accidents such as flooding and casualties caused by the inrush of the floor-confined water due to floor fractures, activation, and expansion in the mining process can be greatly reduced, thereby ensuring the safety of coal mine production. The grout body was prepared using a large amount of fly ash, waste tire rubber particles and clay, and mixing additives. The ratio optimization test, uniaxial compressive strength test, permeability characteristic test, stability test, and microanalysis of mine water environment were performed. From the test results, the macrophysical and chemical properties including optimal mix ratio, compressive strength, permeability coefficient, and stability of mine water environment were obtained. The microstructural properties of the grouts were analyzed using scanning electron microscopy microanalysis methods. Considering the situation of the coal floor and attempting to use as many solid waste products as possible, the optimized proportion that can meet the requirements of low cost, high bonds, and dense filling is as follows: 20% of rubber particles, 65% of fly ash, 15% of clay, and 1% of nanosilica. Furthermore, this study can provide scientific reference for large-scale floor grouting reinforcement and large-scale utilization of solid waste products.

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Performance evaluation of bitumen modified with pyrolysis carbon black made from waste tyres

Cited by 65 publications

References 22 publications

Performance Evaluation of Carbon Black Nano-Particle Reinforced Asphalt Mixture

Performance Evaluation of Carbon Black Nano-Particle Reinforced Asphalt Mixture

Influence of Different Aging Environments on Rheological Behavior and Structural Properties of Rubber Asphalt

Experimental Study on the Basic Properties of a Green New Coal Mine Grouting Reinforcement Material

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