Effect of Carbon-Fiber Properties on Volumetrics and Ohmic Heating of Electrically Conductive Asphalt Concrete

Notani, Mohammad Ali; Arabzadeh, Ali; Ceylan, Hali̇l; Kim, Sunghwan; Gopalakrishnan, Kasthurirangan

doi:10.1061/(asce)mt.1943-5533.0002868

Cited by 50 publications

(15 citation statements)

References 27 publications

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“…In order to improve the microwave-absorbing ability of asphalt mixtures and reduce the energy consumption of microwave deicing, various kinds of microwave absorbers are used in asphalt mixture. Notani [15] found that carbon fiber modified asphalt concrete can melt dense layers of snow and ice and be used in critical areas such as airfields. Sun [16] studied the self-healing performance of asphalt mixtures containing steel fibers with microwave heating.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Microwave Absorption of Asphalt Mixtures Containing Magnetite Powder

et al. 2019

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This article is intended to investigate the microwave heating performance of asphalt mixtures containing magnetite powders (MPAM). For this purpose, the surface temperatures of asphalt mixtures containing different dosages of magnetite powders were measured during microwave heating. The low-temperature bending test and water sensitivity test were also conducted to evaluate the performance of MPAM. Heating rate and reflection loss of different thicknesses of MPAM were determined using a microwave heating test and arch reflectivity test, respectively. The results showed that because its main components are triiron tetroxide and iron oxide, which have excellent microwave-absorbing properties, magnetite powders can be used as microwave absorbers to improve the ability of microwave absorption and increase the heating rate of asphalt mixtures. The heating rate of the asphalt mixtures increased with the increase of the amount of magnetite powder. The addition of magnetite powder improved the low-temperature properties of the asphalt mixture, but it reduced the water stability of the asphalt mixture. Considering that the microwave-absorbing asphalt mixture used for melting snow and ice should have good water stability, the recommended dosage of magnetite powders was 60%. The microwave-absorbing properties of MPAM were related to its thickness in the pavement structure and frequency of microwaves. In order to greatly enhance the absorbing efficiency, future work should be focused on matching thickness and matching frequency.

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Section: Introductionmentioning

confidence: 99%

Investigation of the Microwave Absorption of Asphalt Mixtures Containing Magnetite Powder

et al. 2019

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“…Hydrated Lime (HL) is also used to improve HMA as mineral filler. It is an additive that increases pavement life and performance through multiple mechanisms [11].…”

Section: Introductionmentioning

confidence: 99%

The Possibility of Minimizing Rutting Distress in Asphalt Concrete Wearing Course

Kareem

Albayati

2022

Eng. Technol. Appl. Sci. Res.

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The excessive permanent deformation (rutting) in asphalt-concrete pavements resulting from frequent repetitions of heavy axle loads is studied in this paper. Rutting gradually develops with additional load applications and appears as longitudinal depressions in the wheel path. There are many causes of the rutting of asphalt roads, such as poor asphalt mixing and poor continuous aggregate gradation. All factors affecting the mixture resistance to permanent deformation must be discussed, and all must be properly considered to reduce the rutting propensity of asphalt-aggregate mixtures. In this study, several mixtures were produced with the most common techniques in rutting resistance (using the most effective additives for each mixture), and their performance was compared with the (conventional) mixture currently used in Iraq. The tests focused on the asphalt-concrete mixture for wearing courses. Different mixtures types were tried, namely, dense hot asphalt mixture (HMA) with two different asphalt contents (4.7% and 5.3%), Open-Grade Friction Course (OGFC) mixture, Stone Mastic Asphalt (SMA) mixture, and Beton Bitumineux a Module Eleve (BBME). The modifiers included natural Sisal Fibers (SFs), Carbon Fibers (CFs), and mineral filler (hydrated lime, HL). Marshall test was carried out to find stability and flow values. Rutting was evaluated by the repeated load test for cylindrical specimens under two temperatures (40°C and 60°C) to obtain the permanent deformation parameters. The parameters were used as input to the VESYS 5W software to evaluate the rut depth during different times of design life under 7×10^6 Equivalent Single Axle Loads (ESALs). The results of the selected mixtures were compared with the mixture designed in the laboratory dense gradation mix Job-Mix Formula (JMF)) within the limits of the Iraqi specification (SCRB,2003). Manipulation of the aggregate gradation that is customary in the implementation of the local mixture showed that the best performance regarding rutting resistance was exhibited by JMF, which decreased the rut depth at 40°C and 60°C by 21.63mm and 44.304mm respectively, in comparison with the conventional mixture. Changing the aggregate gradation of the local mixture gives better performance in rutting resistance without additives or changing the percentage of asphalt, at the same cost.

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“…To enhance the capability and resiliency of transportation systems to overcome the challenges that arise during snow events, an electrically conductive concrete (ECON) heated pavement system (HPS) has been developed (1)(2)(3)(4). This is a special type of heated pavement system (5)(6)(7)(8) that includes a top concrete layer made by adding electrically conductive material, such as carbon fibers (9)(10)(11) and steel shavings (3) to the concrete mixture (12). These systems not only enhance the accessibility of transportation infrastructure but also prevent the excessive need for chemicals and fossil fuelbased vehicles for snow and ice removal.…”

Section: Introductionmentioning

confidence: 99%

Design and Full-scale Implementation of the Largest Operational Electrically Conductive Concrete Heated Pavement System

Malakooti

Theh

Sadati

et al. 2020

Construction and Building Materials

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Effect of Carbon-Fiber Properties on Volumetrics and Ohmic Heating of Electrically Conductive Asphalt Concrete

Cited by 50 publications

References 27 publications

Investigation of the Microwave Absorption of Asphalt Mixtures Containing Magnetite Powder

Investigation of the Microwave Absorption of Asphalt Mixtures Containing Magnetite Powder

The Possibility of Minimizing Rutting Distress in Asphalt Concrete Wearing Course

Design and Full-scale Implementation of the Largest Operational Electrically Conductive Concrete Heated Pavement System

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