Investigation of the Effect of Induction Heating on Asphalt Binder Aging in Steel Fibers Modified Asphalt Concrete

Induction heating is a valuable technology to repair asphalt concrete damage inside. However, in the process of induction heating, induced particles will release a large amount of heat to act on asphalt binder in a short time. The purpose of this paper was to study the effect of induction heating on asphalt binder aging in steel fibers modified asphalt concrete. The experiments were divided into two parts: induction heating of Dramix steel fibers coated with asphalt binder (DA) and steel wool fibers modified asphalt concrete. After induction heating, the asphalt binders in the samples were extracted for testing aging indices with Fourier Transform Infrared (FTIR), Dynamic Shear Rheometer (DSR), and Four-Components Analysis (FCA) tests. The aging of asphalt binder was analyzed identifying the change of chemical structure, the diversification of rheological properties, and the difference of component. The experiments showed that the binder inside asphalt concrete began aging during induction heating due to thermal oxygen reaction and volatilization of light components. However, there was no peak value of the carbonyl index after induction heating of ten cycles, and the carbonyl index of DA was equivalent to that of binder in asphalt concrete after three induction heating cycles, which indicated the relatively closed environment inside asphalt concrete can inhibit the occurrence of the aging reaction.

[1]  Wenbo Zeng,et al.  The temperature effects in aging index of asphalt during UV aging process , 2015 .

[2]  Erik Schlangen,et al.  Two Ways of Closing Cracks on Asphalt Concrete Pavements: Microcapsules and Induction Heating , 2009 .

[3]  José A. Sánchez,et al.  Fatigue and Healing of Asphalt Mixtures: Discriminate Analysis of Fatigue Curves , 2006 .

[4]  Shaopeng Wu,et al.  Induction heating of asphalt mastic for crack control , 2013 .

[5]  Martin van de Ven,et al.  A simple model to define induction heating in asphalt mastic , 2012 .

[6]  Manfred N. Partl,et al.  Induction healing of dense asphalt concrete , 2013 .

[7]  Alvaro Garcia.  Self-healing of open cracks in asphalt mastic , 2012 .

[8]  Shaopeng Wu,et al.  Investigation of sodium stearate organically modified LDHs effect on the anti aging properties of asphalt binder , 2018 .

[9]  Quantao Liu,et al.  Characterization of the material from the induction healing porous asphalt concrete trial section , 2013 .

[10]  Martin van de Ven,et al.  Evaluation of the induction healing effect of porous asphalt concrete through four point bending fatigue test , 2012 .

[11]  Quantao Liu,et al.  Unravelling porous asphalt concrete with induction heating , 2014 .

[12]  R. N. Hunter,et al.  The Shell bitumen handbook , 2015 .

[13]  Martin van de Ven,et al.  Induction healing of asphalt mastic and porous asphalt concrete , 2011 .

[14]  Shaopeng Wu,et al.  Influence of Water Solute Exposure on the Chemical Evolution and Rheological Properties of Asphalt , 2018, Materials.

[15]  Shaopeng Wu,et al.  Investigation of the effect of Mg-Al-LDH on pavement performance and aging resistance of styrene-butadiene-styrene modified asphalt , 2018 .

[16]  Virginie Mouillet,et al.  Comparison by Fourier transform infrared (FTIR) spectroscopy of different ageing techniques: application to road bitumens , 2001 .

[17]  Martin van de Ven,et al.  Induction heating of electrically conductive porous asphalt concrete , 2010 .

[19]  Dallas N. Little,et al.  Exploring Mechanism of H ealing in Asphalt Mixtures and Quantifying its Impact , 2007 .

[20]  Manfred N. Partl,et al.  Induction healing of fatigue damage in asphalt test samples , 2015 .

[21]  Bin Li,et al.  Heating Characteristics and Induced Healing Efficiencies of Asphalt Mixture via Induction and Microwave Heating , 2018, Materials.

[22]  Manfred N. Partl,et al.  Experimental evaluation of dense asphalt concrete properties for induction heating purposes , 2013 .

[23]  Shaopeng Wu,et al.  Effect of Ultraviolet Aging on Rheology and Chemistry of LDH-Modified Bitumen , 2015, Materials.

[24]  B. Li,et al.  Study on the gradient heating and healing behaviors of asphalt concrete induced by induction heating , 2019, Construction and Building Materials.

[25]  Erik Schlangen,et al.  Induction heating of mastic containing conductive fibers and fillers , 2011 .

[26]  Alvaro Garcia,et al.  Self-healing of asphalt mixture by microwave and induction heating , 2016 .