Short- and long-term properties of glass fiber reinforced asphalt mixtures

Enieb, Mahmoud; Diab, Aboelkasim; Yang, Xu

doi:10.1080/10298436.2019.1577421

Cited by 49 publications

(21 citation statements)

References 40 publications

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“…Conclusions: Studies (Table 2) found that nanosilica enhances the binder stability, TSR, and ITS of PAMs, while crumb rubber decreases the abrasion resistance with a few exceptions [8,89] and has no effect on stiffness of the mixtures. On the other hand, warm-mix additives improve the permeability but reduce the abrasion resistance.…”

Section: Additivesmentioning

confidence: 99%

“…This was further explained by Cheng et al [71], highlighting that if crumb rubber is uniformly distributed in the binder, it improves the toughness of the binder and results in higher low-temperature crack resistance. CR also enhances the affinity of bitumen resulting in less oxidation, lower stripping, and high raveling resistance [89,90].…”

Section: Additivesmentioning

confidence: 99%

“…The tensile modulus of glass fibers is very high, and its thermal susceptibility is very low [82]. Therefore, a noticeable increase is observed in the ITS value of mixtures by adding glass fibers [81,82,89]. Glass fibers absorb the binder and, hence, increase the air void content and the binder content of the mix without the risk of binder drainage [94].…”

Section: Additionsmentioning

confidence: 99%

“…Glass fiber acts as an elastic medium to reinforce the viscoelastic characteristics of the mixture, which subsequently improves the strain value, making the mixture stiffer. Therefore, glass fibers can be added to mixtures to reduce the rut depth [89]. Moreover, glass fiber enhances the ductility, improves the fatigue strength and also preserves the high-temperature stability of the mixture by improving its rutting resistance [81,84].…”

Section: Additionsmentioning

confidence: 99%

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Incorporation of Additives and Fibers in Porous Asphalt Mixtures: A Review

2019

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Despite the numerous benefits for preserving the hydrological cycle, permeable pavement systems (PPSs) found their major application in parking spots and for light traffic scenarios due to their limited durability and strength. To make the PPSs suitable for heavy traffic conditions without significant distresses, research is shifting toward the adoption of novel binders and additives for designing multifunctional porous asphalt mixtures which make up the surface course of PPSs. Certain additives are well known for enhancing the durability of dense graded asphalt mixtures and improving fatigue and rutting resistance. However, the studies on the influence of additives on abrasion resistance and binder draindown, which are the common problems in porous asphalt mixtures (PAMs), are still not well established. This paper summarizes best practices performed on PAMs and recommends possible future research directions for its improvement. Particular emphasis is placed on strength and resilience of PAMs by incorporating additives like nanosilica, crumb rubber, warm-mix additives, fibers (such as cellulose, glass, steel, and synthetic fibers), and some eco-friendly materials. It was found that different additives seem to have different effects on the properties of PAMs. Moreover, the combination of additives has synergistic benefits for the performance of PAMs, especially in urban pavements.

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Section: Additivesmentioning

confidence: 99%

Section: Additivesmentioning

confidence: 99%

Section: Additionsmentioning

confidence: 99%

Section: Additionsmentioning

confidence: 99%

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Incorporation of Additives and Fibers in Porous Asphalt Mixtures: A Review

2019

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“…Where the tensile strength (σt) computed by DPT at 20 o C is an indicator for the fatigue behavior of HMA mixtures, higher σt indicates reduced cracking in asphalt mixtures resulting from fatigue [40]. The HMA mixture that has a high σt is expected to demonstrate a high ability to absorb the energy without fracture [54]. Figure 13 shows the tensile strength values of the control and NSF-modified asphalt mixtures at 20 o C. The result showed a significant increase in tensile strength of HMA mixtures with increasing NSF content.…”

Section: Fatigue Behavior Of Asphalt Mixturesmentioning

confidence: 99%

Evaluation of Hot Mix Asphalt and Binder Performance Modified With High Content of Nano Silica Fume

Aboelmagd

Moussa

Enieb

et al. 2021

JES. Journal of Engineering Sciences

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This research aims to evaluate the mechanical properties of hot asphalt mixtures prepared using modified asphalt binders with various contents of nano-silica fume (NSF). The modification to virgin bitumen is done by shear mixing with NSF at low contents (2, 4, 6, and 8%) and high contents (20, 30, 40, and 50%) with bitumen weight. The homogeneity of the modified asphalts was assessed using Scanning Electron Microscopy. The rotational viscosity, softening point, and penetration tests were used to evaluate the rheological-physical properties of the modified asphalt binders. The stiffness, moisture damage, rutting, and fatigue of the hot mixes prepared with NSF-modified binders were evaluated using Marshall, indirect tensile strength, and double punching tests. The results showed a significant improvement in the rheological-physical properties of the modified binders with high content compared Aboelmagd et al., Evaluation of Hot Mix Asphalt and Binder Performance Modified with … to low content of NSF. Therefore, the modified binders with 30%, 40%, and 50% of NSF were selected to prepare NSF-modified mixtures. The results showed that asphalt mixtures incorporating 30, 40, and 50% NSF-modified binders were more resistant to moisture damage, rutting, and fatigue cracking compared to the control mixture. The novelty in this research is to produce a modified asphalt mixture with half a quantity of bitumen while achieving a high performance compared to the control mixture.

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