Utilization of waste fibers in stone matrix asphalt mixtures

Putman, Bradley J.; Amirkhanian, Serji

doi:10.1016/j.resconrec.2004.04.005

Cited by 271 publications

(131 citation statements)

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“…(2015) 12:189-196 193 improve interface adhesion between asphalt and fiber or aggregate. Moreover, the increased fiber-asphalt interface adhesion improves the anti-cracking strength of AC mixture (Putman and Amirkhanian 2004).…”

Section: Adsorption and Adhesion Of Asphaltmentioning

confidence: 99%

Stabilizing and reinforcing effects of different fibers on asphalt mortar performance

Zhang

et al. 2015

Pet. Sci.

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Physical properties of different fibers (mineral, cellulose, or carbon fiber) and their stabilizing and reinforcing effects on asphalt mortar performance were studied. Scanning electron microscopy was used to study the effect of fiber's microstructure on asphalt mortar's performance. Laboratory tests of mesh-basket draindown and oven heating were designed and performed to evaluate the fibers' asphalt absorption and thermostability. A cone penetration test was used to study the flow resistance of fiber-modified asphalt mortar. Results showed that fiber can form a three-dimensional network structure in asphalt, and this network can be retained at high temperature. This network of fibers favors the formation of a thick coating of mastic without asphalt draining down. Cellulose fiber possessed a greater effect on asphalt absorption and stabilization than did the other fibers (mineral and carbon fiber). A dynamic shear rheometer was used to evaluate their rheological properties and rut resistance. Results indicated that fiber can effectively improve the rut and flow resistance of asphalt mortar. However, the bending beam rheometer results demonstrated that the addition of fiber had negative effects on the creep stiffness and creep rate of asphalt mortar.

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Section: Adsorption and Adhesion Of Asphaltmentioning

confidence: 99%

Stabilizing and reinforcing effects of different fibers on asphalt mortar performance

Zhang

et al. 2015

Pet. Sci.

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“…In 2004, a comparison study carried was carried out by Putman and Amirkhanian [51] to investigate the performance of SMA mixtures containing waste CR from used tires, and carpet fibers with commonly used cellulose in one occasion and polyester fibers in the other. The results indicated that the.…”

Section: International Journal Of Environmental Science and Developmementioning

confidence: 99%

Utilization of Recycled Polyethylene Terephthalate (PET) in Engineering Materials: A Review

Sulyman¹,

Haponiuk²,

Formela³

2016

IJESD

108

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Abstract-In general, the quantity of plastics of all types consumed annually all over the world has been growing in a phenomenal way. The manufacturing processes, service industries and municipal solid wastes (MSW) generate numerous waste plastic materials. The increasing awareness about the environment has tremendously contributed to the concerns related with disposal of the generated wastes. It is believed that the management of solid waste is one of the major environmental concerns in the world. Due to limited space on landfills and increasing costs of plastics, utilization of waste plastics has become an attractive alternative for disposal. This paper provides a summary of experimental efforts on the utilization of poly(ethylene terephthalate) (PET) in civil engineering projects, mainly in road pavement, cements and concretes. Presented data indicate that use of waste PET for modification of asphalt, cement and concretes improved their selected properties, which makes economical this approach. Furthermore, using of waste PET in building materials reduce usage of new polymeric materials, which has significant effect on environment pollution (e.g. emission of carbon dioxide, waste disposal problems, etc.) Index Terms-Bitumen, building materials, concrete, PET, recycling.

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“…Ageing [2], moisture damage [3] and thermal cracking [4] are the main factors that affect the durability of asphalt pavements. With the aim of improving the behaviour of flexible pavements against these factors, different types of fibres can be added to the asphalt mixtures [5], such as: cellulose and mineral fibres [6]; polymeric fibres like polypropylene and polyester [7]; and steel wool and other waste fibres [8]. In particular, due to the higher tensile strength of metallic fibres compared with asphalt mixtures they can improve the tensile resistance and cohesive force when added to the mixture [5].…”

Section: Introductionmentioning

confidence: 99%

Influence of the Microwave Heating Time on the Self-Healing Properties of Asphalt Mixtures

Norambuena-Contreras

Gonzalez-Torre

2017

Applied Sciences

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Featured Application: A new generation of advanced self-healing asphalt pavements is coming. The asphalt mixture presented in this study could be potentially used to build long-life roads with crack-healing properties through electromagnetic heating, e.g., induction and microwaves.Abstract: This paper aims to evaluate the influence of the microwave heating time on the self-healing properties of fibre-reinforced asphalt mixtures. To this purpose, self-healing properties of dense asphalt mixtures with four different percentages of steel wool fibres were evaluated as the three-point bending strength before and after healing via microwave heating at four different heating times. Furthermore, the thermal behaviour of asphalt mixtures during microwave heating was also evaluated. With the aim of quantifying the efficiency of the repair process, ten damage-healing cycles were done in the test samples. In addition, self-healing results were compared with the fibre spatial distribution inside asphalt samples evaluated by CT-scans. Crack-size change on asphalt samples during healing cycles was also evaluated through optical microscopy. It was found that the heating time is the most influential variable on the healing level reached by the asphalt mixtures tested by microwave radiation. CT-Scans results proved that fibre spatial distribution into the asphalt mixtures play an important role in the asphalt healing level. Finally, it was concluded that 40 s was the optimum heating time to reach the highest healing levels with the lowest damage on the asphalt samples, and that heating times over 30 s can seal the cracks, thus achieving the self-healing of asphalt mixtures via microwave heating.

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Utilization of waste fibers in stone matrix asphalt mixtures

Cited by 271 publications

References 1 publication

Stabilizing and reinforcing effects of different fibers on asphalt mortar performance

Stabilizing and reinforcing effects of different fibers on asphalt mortar performance

Utilization of Recycled Polyethylene Terephthalate (PET) in Engineering Materials: A Review

Influence of the Microwave Heating Time on the Self-Healing Properties of Asphalt Mixtures

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