Feasibility of using phosphate wastes for enhancing high-temperature rheological characteristics of asphalt binder

Amrani, Mustapha; Haloui, Yassine El; Hajikarimi, Pouria; Sehaqui, Houssine; Hakkou, Rachid; Barbachi, Mohamed; Taha, Yassine

doi:10.1007/s10163-020-01026-1

Cited by 23 publications

(7 citation statements)

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“…It was concluded that mine tailings alone and mixed with fly ash mine wastes can be favourably used as road embankment materials cost-effectively and sustainably. Also, the coal mine waste rocks (CMWR) wastes were successfully interred for the production of eco-friendly fired bricks at a laboratory scale [10,11], in the production of cement [12,13] and asphalt concrete products [14,15].…”

Section: Introductionmentioning

confidence: 99%

Sustainable Reuse of Coal Mine Waste: Experimental and Economic Assessments for Embankments and Pavement Layer Applications in Morocco

et al. 2020

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This paper deals with the potential reuse of coal mine waste rocks (CMWR) as an alternative material for road construction to conserve the natural resources and sustainable management of mining waste. The investigation was conducted through the determination of the chemical, mineralogical, geotechnical properties, and acid mine drainage formulation of CMWR as well as economic feasibility. This waste was used either alone for embankments and mixed with stabilizing agents fly ash (FA) and hydraulic road binder (HRB) for pavement applications. The experimental results confirmed that weathered CMWR can be successfully used alone as a sustainable alternative material for the embankment. Furthermore, the use of stabilizing agents in the following ratio CMWR:FA:HRB = 80:20:5 allow the use of CMWR in road sub-base layers for high-traffic pavements. Also, the environmental investigations showed that CMWR does not present any potential contaminating risk on the surrounding environment and most of the pyrite particles were already oxidized. Therefore, the environmental impact of acid mine drainage produced by pyritic waste throughout its life cycle can be neglected. Finally, an economic case study confirmed the workability of CMWR reuse in a radius of 29 km around their dumps by resulting in a lower cost compared with conventional materials.

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Section: Introductionmentioning

confidence: 99%

Sustainable Reuse of Coal Mine Waste: Experimental and Economic Assessments for Embankments and Pavement Layer Applications in Morocco

et al. 2020

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“…El ligante asfaltico es un material altamente visco elástico, que contribuye consistencia y define su comportamiento frente al tiempo, la temperatura y la tasa de carga [40] [41], ayudando en la adhesión de las partículas de los áridos [42], es también un material termoplástico [43] ya que se convierte en sólido a mayores temperaturas y líquido cuando esta disminuye [44], pues la calidad, la naturaleza y su compleja estructura química influye grandemente en la durabilidad de los pavimentos asfálticos [45].…”

Section: Identificación Del Asfalto (Bitumen Betún O Ligante Asfáltico)unclassified

Revisión sistemática del comportamiento convencional y reológico del biocompuesto asfalto-biomasas producidas

2023

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La ingeniería de pavimentos, busca con ahínco materiales no petrolíficos como sustituyentes/mejoradores del asfalto. La producción de bioasfalto con biomasa es la técnica más usual con beneficios económicos, sociales y medioambientales. Este documento tiene como objetivo realizar una revisión literaria del mejoramiento del asfalto con biomasa en subproductos de biocarbón o bioaceite. Se efectuó una revisión de 80 artículos científicos, los cuales estudiaron las propiedades convencionales y reológicas del asfalto con porcentajes óptimos de adición de biomodificadores, considerándolos como nuevas tecnologías en las construcciones viales. Los resultados muestran que la dosis y tipo del biomaterial influye mucho como modificador, dado que el rendimiento del bioasfalto a base de biomasa garantiza reacciones positivas con una mínina adición de 1% de aceite de palma hasta 100% de ceniza de madera como máximo. En conclusión, a mayor dosis de biomodificador a altas temperaturas mayor es la mejora en la viscosidad, estabilidad, grado de penetración, punto de reblandecimiento, resistencia a la tracción indirecta, módulo de resistencia, resistencia a la deformación, resistencia a la fatiga, resistencia al deslizamiento y resistencia a la humedad del asfalto, además de tener mejores condiciones de envejecimiento oxidativo, pues generalmente el ligante asfáltico es compatible con la mayoría de los biomateriales, siendo viable como fuente de energía renovable, sostenible y de calidad.

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“…According to the research of Cuadri et al, the incorporation of phosphogypsum into asphalt mixes within a reasonable range can significantly improve the high temperature rutting resistance and Marshall performance of asphalt mixes [10]. Amrani et al carried out rutting tests and showed that the dynamic stability of phosphogypsum asphalt mixes would be significantly improved, a phenomenon that suggests that phosphogypsum incorporation can improve the high temperature stability of asphalt mixes [5]. Since phosphogypsum contains some calcium sulphate whiskers, Cuadri et al (2014) found that the high temperature performance of the asphalt mixture was not as significant as that of conventional polymer modified asphalt when the calcium sulphate whiskers were mixed into the asphalt mixture alone.…”

Section: Effect Of Phosphogypsum On the Technical Properties Of Aspha...mentioning

confidence: 99%

The State-of-the-Art Review on Road Harmless Utilization Technology of Phosphogypsum

Wang¹,

Jia³

et al. 2022

Advances in Transdisciplinary Engineering

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The “Guiding Opinions on the Comprehensive Utilization of Bulk Solid Waste during the 14th Five-Year Plan” issued by the Ministry of Ecology and Environment in 2021 pointed out that by 2021, China’s cumulative bulk solid waste stockpiles are about 60 billion tons, and the annual new stockpiles are nearly 3 billion. At the same time, there is a problem of low solid waste utilization rate, occupying a large amount of land resources, and a large hidden danger to the ecological environment. In order to further improve the utilization of solid waste, reduce the cost of road construction, and reduce the damage and impact of solid waste accumulation on the environment. This paper analyzes phosphogypsum impaction of the incorporation of various solid wastes on asphalt penetration, softening point, ductility and other properties, as well as the impact on the high temperature stability, low temperature crack resistance and water stability of asphalt mixtures, and the summarize and evaluate the microscopic modification mechanism and other aspects. At present, there is a relatively lack of research on the reuse of some solid wastes in asphalt in China. This review can provide reference and reference for judging a variety of solid wastes as asphalt modifiers, promote the green reuse of solid wastes, and reduce the construction of asphalt pavements.

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Feasibility of using phosphate wastes for enhancing high-temperature rheological characteristics of asphalt binder

Cited by 23 publications

References 24 publications

Sustainable Reuse of Coal Mine Waste: Experimental and Economic Assessments for Embankments and Pavement Layer Applications in Morocco

Sustainable Reuse of Coal Mine Waste: Experimental and Economic Assessments for Embankments and Pavement Layer Applications in Morocco

Revisión sistemática del comportamiento convencional y reológico del biocompuesto asfalto-biomasas producidas

The State-of-the-Art Review on Road Harmless Utilization Technology of Phosphogypsum

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