Effects of phosphorus slag powder and polyester fiber on performance characteristics of asphalt binders and resultant mixtures

Sheng, Yanping; Zhang, Ben; Yu, Yang; Chen, Huaxin; Xiong, Rui; Geng, Jiuguang

doi:10.1016/j.conbuildmat.2017.02.141

Cited by 40 publications

(13 citation statements)

References 13 publications

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“…When the amount of polyester fiber is 0.4%, the draindown of binder is the least, the Marshall stability and flow value are the maximum, the splitting tensile strength is the largest, and the water stability is the best. Considering, the polyester fiber content in the asphalt mixture is generally from 0.3% to 0.5% [23,24], the polyester fiber content in this paper is 0.3%, 0.35%, 0.4%, 0.45%, and 0.5%. Meanwhile, those without polyester fibers are taken as the control group.…”

Section: Polyester Fiber Content and Optimum Asphalt Contentmentioning

confidence: 86%

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Effect of Polyester Fiber on Air Voids and Low‐Temperature Crack Resistance of Permeable Asphalt Mixture

Wu¹,

Ma³

2020

Advances in Civil Engineering

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With the rapid development of asphalt pavement, the drainage capacity of asphalt pavement is becoming more and more demanding. Therefore, it is imperative to study the permeable asphalt mixture. The air voids and the connected air voids are the main factors affecting the drainage function and low-temperature performance of asphalt pavement. In order to solve the drainage and low-temperature cracking problem, it is proposed to incorporate a certain amount of polyester fiber into the permeable asphalt mixture. This paper studies the air voids and low-temperature performance of asphalt mixture with different polyester fiber contents. It is concluded that with the increase of polyester fiber content, both the air voids and the connected air voids decrease first and then increase and reach the minimum value when the polyester fiber content is 0.4%. At this time, the low-temperature crack resistance of the permeable polyester fiber asphalt mixture is also the best.

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Section: Polyester Fiber Content and Optimum Asphalt Contentmentioning

confidence: 86%

“…e incorporation of polyester fiber can increase the toughness of the asphalt mixture, reduce the sensitivity of the mixture to water, improve the crack resistance of the mixture, and prolong the service life of the mixture at low temperature [5,24,25].…”

Section: Introductionmentioning

confidence: 99%

Effect of Polyester Fiber on Air Voids and Low‐Temperature Crack Resistance of Permeable Asphalt Mixture

Wu¹,

Ma³

2020

Advances in Civil Engineering

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“…In summary, it is worth noting that the shape of the fibre and surface area play a key role in promoting the absorption and holding of the bitumen binder and in providing enhanced bonding which resists fracturing [41,51,52]. Further tensile and shear resistance of the bituminous mixtures are generated due to the three-dimensional network effect of the fibres.…”

Section: Fibres Microstructure Characteristicsmentioning

confidence: 99%

A laboratory study of high-performance cold mix asphalt mixtures reinforced with natural and synthetic fibres

Shanbara

Ruddock

Atherton

2018

Construction and Building Materials

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This research aims to examine the impact of using natural and synthetic fibres as reinforcing materials, on the mechanical properties and water susceptibility of cold mix asphalt (CMA) including indirect tensile stiffness and resistance to rutting, cracking and moisture damage. Four different types of fibres were used: glass as a synthetic fibre, and hemp, jute and coir as natural fibres. Various samples of CMA, with and without fibres, were fabricated and tested. Traditional hot mix asphalt (HMA) was also used for comparison. The results indicate a significant improvement in the indirect tensile stiffness modulus, for all fibre-reinforced CMA mixtures, over different curing times. The improved tensile behaviour represents a substantial contribution towards slowing crack propagation in bituminous mixtures, while scanning electron microscopy analysis confirmed the fibre shape and surface roughness characteristics. The improved performance of the reinforced mixtures with both natural and synthetic fibres, facilitated a substantially lower permanent deformation than traditional hot and cold mixtures at two different temperatures (45 and 60°C). When using glass and hemp fibres as reinforcing materials, there was 2 a significant improvement in CMA in terms of water sensitivity. Resistance to surface cracking was also improved when fibres were incorporated. Based on the test results, 0.35% fibre content by mass of dry aggregate and 14mm fibre length are recommended to achieve the optimum performance output for indirect tensile stiffness.

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“…The dynamic modulus is the property of the material required in the AASHTO empirical design method and is an important initial parameter in the mechanistic-empirical design guide. This parameter has been deemed a fundamental element in the design of pavements and, due to this, has been introduced as an element that rationally characterizes the force-deformation behavior of the material making up the structure [39]. Fig.…”

Section: Dynamic Modulusmentioning

confidence: 99%

Behavior of the Dynamic Modulus and Fatigue in Asphalt Mixtures with Blast Oxygen Furnace Slag and Blast Furnace Dust

Ochoa

López

Grimaldo

2021

Period. Polytech. Civil Eng.

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Slag from a Blast Oxygen Furnace (BOF) is produced during the transformation of cast iron, coming from the blast furnace, into steel during the integrated steelmaking process, just as blast furnace dust (BFD) is produced during the transformation of the iron mineral into cast iron. These residues have generated environmental problems due to the accumulation and inadequate disposal thereof. Consequently, this study aims to analyze the use and behavior of the dynamic modulus and the fatigue in asphalt mixtures with partial (50 %) and total (100 %) substitution of the coarse aggregate for BOF slag and the fine aggregate for BFD. The results are compared with the behavior of a mixture elaborated with conventional aggregates. To achieve this objective, the chemical and physical properties of BOF and BFD were determined along with the optimum asphalt cement content, determined using the Ramcodes methodology. Tests were carried out to evaluate the physical characteristics, the dynamic modulus, and the fatigue of each type of mixture. The results of this study demonstrate adequate fatigue behavior and a slight reduction in dynamic modulus in mixtures with BOF and BFD. This allows us to deduce that the use of these residues is feasible and thereby to contribute to sustainable development and the protection of the environment.

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Effects of phosphorus slag powder and polyester fiber on performance characteristics of asphalt binders and resultant mixtures

Cited by 40 publications

References 13 publications

Effect of Polyester Fiber on Air Voids and Low‐Temperature Crack Resistance of Permeable Asphalt Mixture

Effect of Polyester Fiber on Air Voids and Low‐Temperature Crack Resistance of Permeable Asphalt Mixture

A laboratory study of high-performance cold mix asphalt mixtures reinforced with natural and synthetic fibres

Behavior of the Dynamic Modulus and Fatigue in Asphalt Mixtures with Blast Oxygen Furnace Slag and Blast Furnace Dust

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