Investigating effects of using nanomaterial on moisture susceptibility of hot-mix asphalt using mechanical and thermodynamic methods

Abandansari, Hossein Fallahi; Modarres, Amir

doi:10.1016/j.conbuildmat.2016.11.052

Cited by 25 publications

(7 citation statements)

References 18 publications

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“…A reduction in stripping and moisture susceptibility is achieved by adding SBS nano-composite, which increases surface free energy and increases bitumen and aggregate adhesion. The addition of 2% of the nanocomposite increased the TSR value considerably [33].…”

Section: Rap With Nanomaterialsmentioning

confidence: 94%

Application and Performance of RAP in Highway Construction: A Literature Review

Chingakham,

Sarkar

2024

Advanced Materials in Civil Engineering

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Reclaimed Asphalt Pavement (RAP) is degraded asphalt that has been removed from damaged flexible pavement. The second-largest road network in the world, with a length of more than 63.72 lakh km, is found in India, according to the MoRTH's annual report for 2021–2022. Large quantities of RAP are produced each year during highway maintenance and construction. When the flexible pavements are removed for reconstruction or resurfacing, they are dumped in landfills, posing serious environmental concerns. Recycling overcomes the exploitation of natural resources, reduces the unwanted increase of road elevation due to periodical overlays, and disposal of RAP generated from pavement construction. An overview of the application of RAP is provided in this publication, to understand its importance and performance in highway construction when mixed with different materials viz. rejuvenators, nanomaterials, WMA additives, reinforcement with polymer or bamboo, fly ash – lime, etc. The use of recycled asphalt pavement is progressively expanding in India for road building, which meets the overall goal of sustainable development by lowering the consumption of natural resources, the emission of hazardous gases, the cost and energy of disposal, and landfill utilization.

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Section: Rap With Nanomaterialsmentioning

confidence: 94%

Application and Performance of RAP in Highway Construction: A Literature Review

Chingakham,

Sarkar

2024

Advanced Materials in Civil Engineering

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“…The results of his study showed that thermodynamic changed in adhesion and cohesion of SFE were directly related to debonding in the asphalt binder aggregates contact surface and cracks in the mastic. Abandansari and Modarres [7] investigated the |547 influence of nanomaterials additives on moisture strength of asphalt mixtures by using the mechanical and thermodynamic methods. Bhasin [8] firstly developed the methods to measure the SFE components of asphalt binder and aggregate.…”

Section: Previous Studiesmentioning

confidence: 99%

An Experimental Investigation into the Effect of Asphalt Binder Modified with SBR Polymer on the Moisture Susceptibility of Asphalt Mixtures

Hamedi¹,

Sahraei²,

Pirbasti³

2021

Period. Polytech. Civil Eng.

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There are several experimental methods for improving the moisture strength of asphalt mixtures. Utilization of anti-stripping materials is the most prevalent method. In the present paper, the influence of polymer materials on asphalt binder was investigated using repetitive loading test in wet and dry conditions along with thermodynamic parameters based on the Surface Free Energy components of asphalt binder and aggregates. The results obtained from the present study indicated that using Styrene Butadiene Rubber polymer has improved the asphalt mixtures strength against the moisture damage, especially in the specimens made of granite aggregates. Also, Styrene Butadiene Rubber polymer increased the cohesion free energy and reduced the energy released by the system during the stripping event, which represented a decrease in the tendency for stripping. The stripping percentage index, which is obtained by a combination of the results of the repetitive loading test in wet and dry conditions along with the results of thermodynamic parameters, represented that the specimens made of controlled asphalt binder in the loading cycles under wet conditions had a higher stripping rate. It was also concluded that the modulus loss rate in the control asphalt mixtures was faster than the modified specimens.

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“…Based on earlier literature surveys [14][15][16], the moisture susceptibility of the ATH modified asphalt was evaluated by the SFE components, as well as the cohesion energy of asphalt, the work of adhesion (under dry conditions), work of debonding (under wet conditions), wettability, and energy ratio. The relationships between the contact angle (q), SFE of liquid or solid (g l or g s ), and interaction energy of liquid-solid (g ls ) was determined using the Young equation expressed by Eq.…”

Section: Sfe Parameters and Fundamentalsmentioning

confidence: 99%

Estimating moisture susceptibility of asphalt modified with alumina trihydrate

2018

JCE

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Estimating moisture susceptibility of asphalt modified with alumina trihydrate The moisture susceptibility of asphalt containing alumina trihydrate (ATH) was assessed through the surface free energy. Physical properties and flame retardancy of ATH samples were also investigated. For research purposes SBS modified asphalt samples with different dosages (0-14 %) of ATH were prepared. Increased viscosity, softening point limiting oxygen index and lower penetration ductility, were investigated for the ATH modified samples. ATH has a significant negative effect on the moisture-induced damage potential of asphalt mixture from the view of micromechanisms.

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Investigating effects of using nanomaterial on moisture susceptibility of hot-mix asphalt using mechanical and thermodynamic methods

Cited by 25 publications

References 18 publications

Application and Performance of RAP in Highway Construction: A Literature Review

Application and Performance of RAP in Highway Construction: A Literature Review

An Experimental Investigation into the Effect of Asphalt Binder Modified with SBR Polymer on the Moisture Susceptibility of Asphalt Mixtures

Estimating moisture susceptibility of asphalt modified with alumina trihydrate

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