Oct 01, 2021 The observations showed that the induced heating-healing rate of asphalt concrete made of siliceous aggregate was more than that of limestone aggregate (Jahanbakhsh et al., 2018). This observation attributes to higher electrical conductivity and sensitivity of siliceous aggregate to electromagnetic radiation compared to limestone aggregate.
Get PriceInduced heating-healing of asphalt concrete is rapidly emerging as an innovative repairing technique in pavement engineering. In this method, asphalt concrete is heated using the external ...
Get PriceJul 30, 2018 Induced heating-healing characterization of activated carbon modified asphalt concrete under microwave radiation. ... The electrical conductivity of the asphalt concrete plays the main role in the first mechanism of induction heating. More electrical conductivity leads to more eddy current and more induction heating through the first mechanisms.
Get PriceThe obtained results confirmed that AC is a potentially viable and robust binder-based conductive component for induced heating and healing of asphalt concrete. Graphical abstract The activated carbon, as a binder-based modifier, is added to the asphalt concrete to enhance electro-magnetic (e.g., microwave) radiation absorption.
Get PriceJun 20, 2018 The thermal conductivity, specific heat, and electrical conductivity of asphalt concrete play crucial roles in induction heating and induced healing features. Based on the aforementioned research studies, it can be concluded that the CB is a potential candidate to improve the thermal and electro-magnetic features of the asphalt concrete.
Get PriceInduced heating-healing of asphalt concrete is rapidly emerging as an innovative repairing technique in pavement engineering. ... This study covers the influence of conductive additive type on the ...
Get PriceDec 10, 2020 The effects of breaking temperature on efficiency of the induced healing process by considering the effects of aging: (a) control; (b) activated carbon modified samples. Similar to IDT and SCB tests at 25 ℃, H.I of asphalt mixes at various aging levels under cyclic breaking-healing in SCB test at −20 ℃ was studied.
Get PriceWhile several studies have investigated induced heatinghealing of unaged (virgin) asphalt mixes [7,16,20,25,28, 29, 38], limited studies have been conducted to evaluate the effects of aging on ...
Get PriceConductive asphalt concrete can be used to help pavement snow melting/deicing by an asphalt pavement electrical heater. It is an emerging technology to ensure safety driving during winter time.
Get PriceInduced heating-healing of asphalt concrete is rapidly emerging as an innovative repairing technique in pavement engineering. ... This study covers the influence of conductive additive type on the ...
Get PriceAbstract This study focused on induced heating and healing of asphalt concrete. Carbon black (CB) was added to asphalt binder as a conductive component to increase the electro-magnetic sensitivity of the asphalt concrete and to accelerate the heating and healing rate of this material. Samples were fabricated using siliceous and limestone aggregate types.
Get PriceOtherwise, by adding steel or carbon fibers to the mixture, fatigue life of asphalt concrete could be extended by approximately 20-25 times that of plain asphalt mixtures [11].Wu et al. [6] explain how the conductivity of asphalt concrete can be highly improved by adding small volumes of carbon fibers to the system aggregates-bitumen-conductive ...
Get PriceRequest PDF Correlation between asphalt concrete induced healing and rheological properties of asphalt binder The induction heating-induced healing of asphalt concrete is an innovative method ...
Get PriceApr 15, 2019 It is consensual that the self-healing property of asphalt concrete can repair the damage inside it during high temperature and rest period. In order to not affect the traffic, the rest period of asphalt pavement is very short and uncontrollable; so, it is necessary to obtain enough high temperature in a limited time to achieve higher healing efficiency of asphalt concrete.
Get Pricestudy was characterises the mechanical, rheological, induced heating, and induced healing behaviour of asphalt concrete containing steel wool fibers (SWFs) as the conductive material.Induced heating of asphalt concrete through the electromagnetic field is a latest method to heal the damages induced in asphalt concrete. Previous
Get PriceApr 14, 2014 Conductive asphalt concrete can be used to help pavement snow melting/deicing by an asphalt pavement electrical heater. It is an emerging technology to ensure safety driving during winter time. Based on the Joule heating law, an electric current passing through the conductive asphalt concrete (a conductor) could generate enough heat to prevent ...
Get PriceMar 24, 2014 When the temperature of asphalt concrete is above a certain threshold, bitumen may start flowing through any possible crack and healing it. Induction heating is a technique for increasing the temperature of asphalt mixture. It consists of adding electrically conductive and magnetically susceptible particles to the mixture.
Get PriceMar 25, 2016 Artificial healing of asphalt concrete by induction heating requires the addition of electrically conductive and/or magnetic materials into the asphalt mixture. Hence, bitumen can be heated up by an alternating electromagnetic field, decreasing therefore its viscosity and allowing it to flow for closing cracks and recover bonding among the mineral aggregates.In this work, a recent
Get PriceWhile healing is an intrinsic property of asphalt binder, it is practically impossible to grasp the benefits of this characteristic in the field, as the flow of traffic is beyond the designer’s control. Yet recent investigations attempted to accelerate the healing of asphaltic materials by adding conductive materials in the asphalt mixture.
Get PriceInduced Heating-Healing Characterization of Activated Carbon Modified Asphalt Concrete under Microwave Radiation, Construction and Building Materials , 178 , pp.254-271.
Get PriceCited by. Year. Effects of aging level on induced heating-healing properties of asphalt mixes. S Amani, A Kavussi, MM Karimi. Construction and Building Materials 263, 120105. , 2020. 11. 2020. Induced heating-healing of conductive asphalt concrete as a sustainable repairing technique: A review.
Get PriceThis study focused on induced heating and healing of asphalt concrete. Carbon black (CB) was added to asphalt binder as a conductive component to increase the electro-magnetic sensitivity of the ...
Get PriceInduced heating-healing characterization of activated carbon modified asphalt concrete under microwave radiation MM Karimi, H Jahanbakhsh, B Jahangiri, FM Nejad Construction and Building Materials 178, 254-271 , 2018
Get PriceOct 08, 2021 Induced heating-healing of conductive asphalt concrete as a sustainable repairing technique: A review 所属领域 材料科学 复合材料 传热 水分 使用寿命 沥青 沥青混凝土 级配 路面工程 骨
Get PriceTo make asphalt mastic and porous asphalt concrete electrically conductive and suitable for induction heating, steel (wool) fibers were incorporated into them. The electrical conductivity and induction heating speed of asphalt mastic and porous asphalt concrete were first studied in this research.
Get Price1. Introduction. Asphalt is a typical temperature-sensitive material, and its self-healing ability is highly dependent on temperature. Heating has been used by many researchers to enhance the self-healing properties of asphalt and asphalt mixtures [1,2,3,4,5].Electromagnetic induction, microwave, and infrared heating methods were widely applied to increase the temperature of an asphalt mixture ...
Get PriceIt is consensual that the self-healing property of asphalt concrete can repair the damage inside it during high temperature and rest period. In order to not affect the traffic, the rest period of asphalt pavement is very short and uncontrollable; so, it is necessary to obtain enough high temperature in a limited time to achieve higher healing efficiency of asphalt concrete.
Get Pricedifferent volumes of electrically conductive particles. It is well known that asphalt concrete is a self healing material. As Little and Basin explain [2], healing occurs only after a stress or strain is induced, A´. Garcı´a() E. Schlangen Faculty of Civil Engineering and
Get PriceThis study characterises the mechanical, rheological, induced heating, and induced healing behaviour of asphalt concrete containing steel wool fibers (SWFs) as the conductive constituent. Induced heating of asphalt concrete through the electromagnetic field is a novel method to heal the damage induced in asphalt concrete.
Get PriceApr 14, 2014 Conductive asphalt concrete can be used to help pavement snow melting/deicing by an asphalt pavement electrical heater. It is an emerging technology to ensure safety driving during winter time. Based on the Joule heating law, an electric current passing through the conductive asphalt concrete (a conductor) could generate enough heat to prevent ...
Get Price22 It is well known that asphalt concrete mixtures are characterized as non-conductive materials, but when 23 conductive additives are mixed into the asphalt mixtures, they become suitable for induction heating. The 24 asphalt mixtures can be heated locally under a time-variable magnetic. Specifically, when an alternating
Get PriceJan 01, 2017 First, a three-dimensional induction heating finite element model was developed to evaluate the design and effect of operational factors for a static single-turn induction coil system. The electrical conductivity values of the material in the inductive asphalt pavement were calibrated with a laboratory-scale induction device.
Get PriceThis study focused on induced heating and healing of asphalt concrete. Carbon black (CB) was added to asphalt binder as a conductive component to increase the electro-magnetic sensitivity of the ...
Get PriceWhile healing is an intrinsic property of asphalt binder, it is practically impossible to grasp the benefits of this characteristic in the field, as the flow of traffic is beyond the designer’s control. Yet recent investigations attempted to accelerate the healing of asphaltic materials by adding conductive materials in the asphalt mixture.
Get PriceAsphalt concrete is the most common material used in roads in many countries around the world. In the USA, more than 90% of roads are surfaced with asphalt concrete (1). Asphalt concrete is economical and safe that is why it is used widely in roads and highways. Roads can quickly be paved and finished with asphalt concrete.
Get PriceInduction heating of asphalt concrete is a technique to increase the self-healing rate of the asphalt concrete material. It basical ly consists in adding electrically conductive fibers to the asphalt mixture. Then, with the help of an induction heating source, it is possible to heat the
Get PriceBased on these mechanisms, conductive porous asphalt concrete used for induction heating has been developed, so that porous as- 3. Experimental methods phalt concrete can regularly repair itself by induction heating and raveling can be avoided or delayed [26–30].
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