Investigating the influence of using nano-composites on storage stability of modified bitumen and moisture damage of HMA

Amini, Behnam; Rajabbolookat, Mohammad Javad; Abdi, Ali; Salehfard, Reza

doi:10.1080/10916466.2017.1292292

Cited by 16 publications

(6 citation statements)

References 5 publications

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“…The storage stability test is used to check whether the modified binder is susceptible to separating the modifier and the binder at high temperatures [39,40]. According to ASTM D5892 [41], a liquid asphalt binder is poured into an aluminum tube.…”

Section: Storage Stabilitymentioning

confidence: 99%

Performance Evaluation of Asphalt Mixtures Modified with Nanomaterials. (Dept. C)

Abdel-Wahed¹,

Abdel-Raheem²,

Moussa³

2022

MEJ. Mansoura Engineering Journal

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 I. INTRODUCTIONRADITIONAL asphalt needs further improvements due to many problems, such as moisture susceptibility, debonding, and permanent deformation [1][2][3]. Recently, the use of nanomaterials to improve the performance of asphalt binder and hot mix asphalt (HMA) has become more widespread. Several kinds of nanoparticles have been used to modify HMA mixes, such as Nano-Carbon tubes, Nano-Clay (NC), Nano-Silica (NS), Nano-

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Section: Storage Stabilitymentioning

confidence: 99%

Performance Evaluation of Asphalt Mixtures Modified with Nanomaterials. (Dept. C)

Abdel-Wahed¹,

Abdel-Raheem²,

Moussa³

2022

MEJ. Mansoura Engineering Journal

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“…While the addition of NC caused a significant improvement in the CRM-modified binder’s storage stability, it had an insignificant effect on that of the SBS- and SBR-modified binders. In another study conducted by Amini et al, 2017, the effect of a composite of NC and SBR with different ratios on the binder and AC mixture performance was evaluated [ 29 ]. They reported an improvement in the binder’s storage stability and in the AC mixture’s moisture sensitivity with the addition of NC/SBR composite.…”

Section: Introductionmentioning

confidence: 99%

“…To this end, most of the previous studies dedicated to exploring polymer/nanocomposites for asphalt modification focused on incorporating thermoplastic-elastomer polymers, such as SBS and SBR, which are relatively expensive compared with other elastomer polymers, such as HDPE [ 29 , 40 , 41 , 42 ]. Moreover, most previous research efforts on polymer/nanocomposite have investigated the performance of the modified asphalt binder; however, a lack of research has investigated the modified AC mixture’s performance.…”

Section: Introductionmentioning

confidence: 99%

Effect of Nanoclay Particles on the Performance of High-Density Polyethylene-Modified Asphalt Concrete Mixture

2021

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Utilizing polymers for asphalt concrete (AC) mixture modification has many drawbacks that hinder its wide implementations for roadway construction. Recently, research on employing complementary materials, such as nanomaterials, to balance negative impacts of polymers while enhancing the AC mixture’s performance has received great attention. This study aimed to investigate the effect of incorporating nanoclay (NC) particles on the performance of a high-density polyethylene (HDPE)-modified AC mixture. A 60/70 asphalt binder was first modified with HDPE, and then NC particles were gradually added at a concentration of 1–4% by weight of the asphalt binder. The binders’ physical characteristics, storage stability, and chemical change were scrutinized. AC mixture performance, including pseudo-stiffness, moisture damage resistance, stripping susceptibility, and rutting tendency, was investigated. A statistical analysis on the experimental results was conducted using Kruskal–Wallis and Dunn tests. Test results showed that employing NC/HDPE significantly increased penetration index and thereby enhanced binder temperature sensitivity. Moreover, it prevented oxidation action and separation and, therefore, enhanced binder storage stability. Furthermore, incorporating NC amplified pseudo-stiffness and significantly improved resistance against moisture damage and stripping of HDPE-modified mixtures. Moreover, it improved both elastic (recoverable) and plastic (unrecoverable) deformations of mixtures. The most satisfactory results were attained when incorporating 3% of NC.

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“…The usage of improved asphalt binders has played a significant role in reducing pavement problems and in enhancing asphalt pavements' long-term efficacy [8]. Although the polymer-modified asphalt binder enhances pavement resistance to thermal cracking, fatigue cracking, and rutting resistance, it suffers from a major problem of incompatibility with asphalt and separation in two distinct phases during storage, poor adhesion, and oxidation [7,4,9,10]. This subject encourages researchers to investigate new materials and additives to develop the efficiency of polymer-modified bitumen [7].…”

Section: Introductionmentioning

confidence: 99%

Mixing and Compaction Temperature of Nanosilica Composite Polymer Modified Asphalt

Al-mousawi¹,

Al-Rubaee

Shubber

2020

ejuow

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Recently, polymer -nanocomposites were used to manufacture durable asphalt mixtures to replace the polymer modified binder, because of the remarkable properties and unique features of nanomaterials compared to conventional materials, such as their wide surface area and small dimensions, making it possible to be utilized as an additive for asphalt paving. Nanosilica particles (NS) are one of the latest minerals which likely integrate useful characteristics, such as huge surface area, good distributions, high absorption levels, high stability, and a high level of purity. Therefore, this paper is interested in studying the characteristics of nanocomposite-polymer modified asphalt. In laboratory work, a pure asphalt 60-70 penetration grade, has been modified separately with waste polypropylene polymer (WPP), and nanosillica composite polypropylene (NS/WPP) at different concentrations. As a result, two modified binders: waste polypropylene polymer- modified asphalt (WPP-MA), and nanosillica composite polypropylene modified asphalt (NSCPMA) were obtained. Traditional asphalt binder tests were performed for pure and modified binders such as penetration, ductility, flash and fire point test, softening point, and rotational viscosity. Also, storage stability test has been conducted to ensure the storage stability of binders at high temperatures. The results showed an improvement in physical properties and increase in mixing and compaction temperature due to the increase in stiffness of (NSCPMA). The results also indicated that the nanosillica composite polypropylene modified asphalt binders have good storage stability at high temperatures.

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Investigating the influence of using nano-composites on storage stability of modified bitumen and moisture damage of HMA

Cited by 16 publications

References 5 publications

Performance Evaluation of Asphalt Mixtures Modified with Nanomaterials. (Dept. C)

Performance Evaluation of Asphalt Mixtures Modified with Nanomaterials. (Dept. C)

Effect of Nanoclay Particles on the Performance of High-Density Polyethylene-Modified Asphalt Concrete Mixture

Mixing and Compaction Temperature of Nanosilica Composite Polymer Modified Asphalt

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