Recycling of Waste Materials for Asphalt Concrete and Bitumen: A Review

Rahman, Tareq; Mohajerani, Abbas; Giustozzi, Filippo

doi:10.3390/ma13071495

Cited by 124 publications

(56 citation statements)

References 55 publications

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“…The rigidity of the binder increased as high as 4-6% of PET content due to the high compatibility between particles [79]. Two parameters that show the hardness, resistance to binder deformation under load, and fermentation or elasticity of asphalt, which are the complex shear and phase angle of the virgin binder, were drawn at different rates of LDPE, HDPE, against the temperature to deliver concurrent plots.…”

Section: Physical Propertiesmentioning

confidence: 99%

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A Review of the Utilisation of Recycled Waste Material as an Alternative Modifier in Asphalt Mixtures

2020

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The possibility of using waste materials in road construction is of great interest as their utilisation may contribute to reducing the problems of hazard and pollution and conserve natural resources. Thus, there is an urgent need to find a sustainable method for using waste materials as a substitute in the standard asphalt binders. There are several concerns about the physical and chemical properties and mechanical performance of asphalt pavements incorporated with waste material in the effort to reduce permanent deformation of the road surface. This review article presents a brief discussion of the asphalt mixtures modified with waste material, and the recycled materials used as a modifier in the asphalt mixture. The present paper summarises the use of crumb rubber, crushed concrete, steel slag, glass fibre and plastic waste in asphalt mixtures. The use of waste materials as a modifier in asphalt mixture resulted in improved asphalt pavement performance. Results advocate that rubberised asphalt mixture with desired properties can be designed as an additive with a friendly environmental approach in construction materials. The researches that adopted the influence of usage, recycle waste material to improve the performance of the asphalt of the road are still limited compared to other construction fields. Doi: 10.28991/cej-2020-SP(EMCE)-05 Full Text: PDF

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Section: Physical Propertiesmentioning

confidence: 99%

“…The use of demolition waste in an asphaltic mixture can reduce the need for landfilling. On the other hand, tire rubber can be used in asphaltic mixture and asphalt binder [79]. This waste provides a low-cost solution both as an additive and binder modifier.…”

Section: Considerations Of Environmental and Economic Aspectmentioning

confidence: 99%

A Review of the Utilisation of Recycled Waste Material as an Alternative Modifier in Asphalt Mixtures

2020

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“…However, this is not the best solution, since such an important sector as the building industry cannot be stopped. Today there are new trends to reduce consumption of virgin materials or optimize processes [8]. These trends include the development of geopolymers or the incorporation of waste into bricks.…”

Section: Introductionmentioning

confidence: 99%

Study of the Incorporation of Biomass Bottom Ashes in Ceramic Materials for the Manufacture of Bricks and Evaluation of Their Leachates

et al. 2020

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Scarcity of raw materials, reduction of greenhouse gas emissions and reduction of waste disposal in landfills are leading to the development of more sustainable building materials. Based on these lines, this work studies the incorporation of biomass bottom ashes into ceramic materials for brick manufacture, in order to reuse this currently unused waste and reduce clay extraction operations. To this end, different groups of samples were made with different combinations of clay and biomass bottom ashes, from 100% clay to 100% biomass bottom ashes. These samples were shaped, sintered and subjected to the usual physical tests in ceramics. In turn, the mechanical resistance, color and leaching of the contaminating elements present were studied. The physical and mechanical tests showed that the results of all the families were adequate, achieving compressive strengths of over 20 MPa and leaching of the contaminating elements acceptable by the regulations. Therefore, a sustainable range of ceramics was developed, with specific properties (porosity, density, resistance and color), with a waste that is currently unused and sustainable with the environment.

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“…In addition to the plastomer and elastomer groups, several polymers are now being produced from recycled materials. Nowadays, the use of recycled material in asphalt applications is gaining continuous attention [35]. Historically, crumb rubber (CR) is one of them, which is produced from recycled and processed automotive tires.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Polymerisation: An Exploratory Study of the Chemo-Mechanical and Rheological Properties of Hybrid-Modified Bitumen

Joohari

Giustozzi

2020

Polymers

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In this study, the mechanical and rheological properties of hybrid polymer-modified bitumen (PMB) have been investigated. For this purpose, nine different polymers—including crumb rubber, elastomers and plastomers at varying content—were studied to evaluate their mechanical performance as single polymers, first, and as a combination of two or more polymers as a hybrid polymer blend. Subsequently, the hybrid polymer blends were added in a relatively small percentage into the base bitumen to study its influence on the rheological performance of hybrid PMB. The mechanical properties identified from the analysis of the stress-strain curve of the single polymers were the Young’s Modulus, tensile stress, and elongation at break. The chemical structure of the polymer hybrid blends was analysed using FTIR, followed by frequency sweep tests conducted using the dynamic shear rheometer (DSR) to determine the bitumen rheological properties. Results showed that hybrid PMB enhances the viscoelastic behaviour of bitumen at both low and high temperature compared to other PMBs only including single polymers.

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Recycling of Waste Materials for Asphalt Concrete and Bitumen: A Review

Cited by 124 publications

References 55 publications

A Review of the Utilisation of Recycled Waste Material as an Alternative Modifier in Asphalt Mixtures

A Review of the Utilisation of Recycled Waste Material as an Alternative Modifier in Asphalt Mixtures

Study of the Incorporation of Biomass Bottom Ashes in Ceramic Materials for the Manufacture of Bricks and Evaluation of Their Leachates

Hybrid Polymerisation: An Exploratory Study of the Chemo-Mechanical and Rheological Properties of Hybrid-Modified Bitumen

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