Investigation of the Performance of Neat and Modified Asphalt Binders

Tang, Yalan; Haddock, John E.

doi:10.5703/1288284313381

Cited by 6 publications

(3 citation statements)

References 21 publications

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“…Regarding blending procedures, there are pre-established procedures for the preparation of asphalt mixtures with conventional bitumen; however, there is a lack of protocols on how asphalt mixtures should be made when new materials such as fibers are incorporated [80]. Two methods are commonly known.…”

Section: Mesh Basket Drain Down Testmentioning

confidence: 99%

Mechanical performance of fibers in hot mix asphalt: A review

Slebi-Acevedo

Lastra-González

Pascual-Muñoz

2019

Construction and Building Materials

174

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The use of fibers in hot mix asphalt (HMA) has become a much more attractive alternative for the construction of road pavements. Numerous studies have shown that the incorporation of fibers in the mixture improves fatigue resistance, permanent deformation and stiffness. The aim of this paper is to present a review of the mechanical impact of fibers in HMA by analyzing their reinforcement effect in a qualitative and quantitative manner. Fiber properties and characterization tests on fiber-modified bitumen are discussed. Quantities, blending procedures and performance of bituminous mixtures with different types of fibers are presented. Results of mechanical improvement are displayed. Based on the current research results, depending on the properties and the type of mixture in which they are used, each type of fiber seems to improve certain parameters more than others. Coconut fibers and waste fibers are described as environmentally friendly alternatives.

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Section: Mesh Basket Drain Down Testmentioning

confidence: 99%

Mechanical performance of fibers in hot mix asphalt: A review

Slebi-Acevedo

Lastra-González

Pascual-Muñoz

2019

Construction and Building Materials

174

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“…Modified binders are frequently employed in high-stress, high-traffic, and extreme-climate environments [55]. Engineers can select suitable modifiers to obtain the desired qualities by understanding the effects of modifiers on the performance of asphalt binders.…”

Section: Sustainable Impact Of Pmasmentioning

confidence: 99%

“…Additives generally exhibit a phenomenon known as pseudo-plasticity, in which viscosity values are dependent on shear rate. As a result, binder test procedures may not be appropriate with changed binders [55] [45]. Polymer content ranges between 2 and 10% by weight; however, the most common proportions were about 5 or 6% a few years ago.…”

Section: Sustainable Impact Of Pmasmentioning

confidence: 99%

Sustainable Use of Polymer in Asphalt Mixture: A Review

Masri

Ferdaus²,

Ramadhansyah³

2022

Constr.

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Polymer modified asphalt (PMA) mixtures are commonly employed in flexible pavement and overlays with large traffic volumes. In contrast, a number of laboratory and field tests have been conducted to evaluate the performance of PMA with that of conventional hot mix asphalt (HMA) mixtures. This paper presents an overview of the various polymers utilised in asphalt mixtures and their effects on the rheological, morphological, physical, and mechanical properties of polymer-modified asphalt binders. According to a review of the relevant literature, a good modifier affects the failure characteristics of the binder, allowing it to withstand greater stresses and strains before failing. In asphalt pavement, adding polymers to asphalt binders to improve their qualities has a long history. Due to polymers' limited solubility, polymer-modified asphalt binders may have several disadvantages. In addition, a brief description of the general approach to mixing polymers is provided. A summary of the benefits and drawbacks of the most common polymers used to alter asphalt binders Styrene-butadiene-styrene (SBS), Styrene-butadiene–rubber (SBR), Polyethylene Terephthalate (PET), Polypropylene (PP), Polyvinyl Chloride(PVC) etc. are illusrated. The paper continues with a discussion of the lasting effects of PMAs on asphalt pavement. To evaluate the economic and environmental impacts, a life cycle assessment (LCA) is required.

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