A Framework to Quantify the Effect of Healing in Bituminous Materials using Material Properties

Bhasin, Amit; Little, Dallas N.; Bommavaram, Rammohan; Vasconcelos, Kamilla

doi:10.1080/14680629.2008.9690167

Cited by 144 publications

(49 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…al. [28] measured the amount of energy required for stripping. Based on the results presented in this study, it was found that if the moisture content is at the surface between asphalt binder-aggregate, stripping in both asphalt binder and aggregate will occur due to the work of adhesion or Gibbs free energy in the presence of water and are negative in values.…”

Section: Literature Reviewmentioning

confidence: 99%

Effects of Asphalt Binder Modifying with Polypropylene on Moisture Susceptibility of Asphalt Mixtures with Thermodynamically Concepts

Hamedi

Azarhoosh²,

Khodadadi³

2018

Period. Polytech. Civil Eng.

View full text Add to dashboard Cite

show abstract

Section: Literature Reviewmentioning

confidence: 99%

Effects of Asphalt Binder Modifying with Polypropylene on Moisture Susceptibility of Asphalt Mixtures with Thermodynamically Concepts

Hamedi

Azarhoosh²,

Khodadadi³

2018

Period. Polytech. Civil Eng.

View full text Add to dashboard Cite

show abstract

“…Researches have concentrated efforts on the development of innovative materials and techniques for asphalt pavement repair, many of them related to crack healing (Bhasin, Little, Bommavaram, & Vasconcelos, 2008;Shan, Tan, Underwood, & Kim, 2010;Nan, 2015;Sangadji & Schlangen, 2013;Barrasa et al, 2014;Ayar, Moreno-Navarro, & Rubio-Gámez, 2016;Menozzi, Garcia, Partl, Tebaldi, & Schuetz, 2015;Zanko, Hopstock, & Derocher, 2016). On the other hand, several studies have demonstrated that micro-wave radiation may be applied for crack healing purposes (Bosisio, Spooner, & Granger, 1974;Osborne & Hutcheson, 1987;Sangadji & Schlangen, 2013;NorambuenaContreras, Serpell, Valdés Vidal, González, & Schlangen, 2016;Zanko et al, 2016) as well as on the production and recycling of asphaltic pavements (Bosisio, et al, 1974;Osborne & Hutcheson, 1987;Norambuena-Contreras et al, 2016;Wang, Zhao, Yang, & Wang, 2011).…”

Section: Introductionmentioning

confidence: 99%

<b>Production of self-healing asphalt with steel short fibres and microwave heating: pilot study

2018

View full text Add to dashboard Cite

ABSTRACT. This pilot study aims to develop a self-healing asphalt through microwave heating, to reduce processing time, save energy and allow real commercial applications in a near future. Asphalt based composites were produced with different percentages of steel short fibers, obtained from the cutlery industry, to serve as a heat source for microwave radiation. Structural characteristics, morphology, and thermic behavior of the short steel fibers were characterized through X-ray Diffraction, X-ray Fluorescence, Scanning Electron Microscopy and Thermogravimetric Analysis, that was also used to verify the relation between mass variation and temperature of the asphalt-based composite. Temperature was monitored during micro wave heating to determine the heating rate of the composites with different percentage of fibers. Brookfield viscosity, penetration, ductility, softening point and density tests were carried out to characterize physical properties of the most representative asphalt-based composite. Results show the feasibility to use microwave heating in the production of the composite, indicating potential for future application as self-healing asphalt and pavement repair.Keywords: waste; bitumen; characterization; cutlery; temperature.Produção de asfalto auto cicatrizante com fibras curtas de aço e aquecimento por microondas: estudo piloto RESUMO. Este estudo piloto visa desenvolver um asfalto auto cicatrizável através de aquecimento por micro-ondas, buscando reduzir tempo de processamento, economizar energia e permitir aplicações reais em um futuro próximo. Os compósitos foram produzidos com diferentes porcentagens de fibras curtas de aço obtidas da indústria da cutelaria, que foram introduzidas no asfalto com o objetivo de servir como fonte de calor, permitindo assim o aquecimento por micro-ondas. Características estruturais, morfologia e comportamento térmico das fibras curtas de aço foram obtidos por meio de difração de Raios-X, Fluorescência de Raios-X, Microscopia Eletrônica de Varredura (MEV) e Análise Térmica (TGA), que também foi utilizada para verificar a variação da massa do compósito com a temperatura. A temperatura do compósito foi monitorada durante o aquecimento para determinação da taxa de aquecimento em função da porcentagem de fibras. Ensaios foram realizados para determinar viscosidade Brookfield, penetração, ductilidade, ponto de amolecimento e densidade, permitindo assim a caracterização das propriedades físicas da amostra mais representativa do compósito. Os resultados mostram a viabilidade do aquecimento por micro-ondas para produção do compósito, indicando potencial para futuras aplicações como asfalto auto cicatrizável e reparo de pavimentos.

show abstract

“…It was first proposed by Bazin in 1967 [1], and widely recognized by scholars. The healing mechanism and influence factors of asphalt materials were studied in paper [2,3]: when the interface between the cracks of the asphalt material contact, the asphalt molecules will diffuse until the crack completely closes. The healing performance of the asphalt depends on the surface energy of the material and the ability of the molecules to diffuse between the crack interfaces.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Self-healing Performance of Aging Asphalt Based on Dynamic Shear Rheometer

Zhu¹,

Gou²,

Fan³

2018

dtetr

View full text Add to dashboard Cite

To evaluate the effect of aging on asphalt self-healing performance, repeated shear tests on 70 # matrix asphalt and SBS modified asphalt aged through delayed rotating thin film oven test (RTFOT) are carried out under the stress control mode through dynamic shear rheological test (DSR). Intervals are drawn into the loading progress to make the self-healing phenomenon appear. The complex shear modulus of different ageing asphalt before and after healing is analyzed. The change ratio of complex shear modulus before and after healing (HI 1 ) and the ratio of complex modulus before and after loading (HI 2 ) are defined as selfhealing index of asphalt. These parameters are used to evaluate the self-healing property of asphalt. The results show that: the complex shear modulus of damaged asphalt can recover after self-healing thus the fatigue life is prolonged. The deeper the aging, the lower the self-healing ability of asphalt .The decrease rate of self-healing index with aging degree of 70 # matrix asphalt is greater than that of SBS modified asphalt. Compared with HI 2 , it is more reasonable to evaluate the self-healing property by HI 1 .1

show abstract

A Framework to Quantify the Effect of Healing in Bituminous Materials using Material Properties

Cited by 144 publications

References 10 publications

Effects of Asphalt Binder Modifying with Polypropylene on Moisture Susceptibility of Asphalt Mixtures with Thermodynamically Concepts

Effects of Asphalt Binder Modifying with Polypropylene on Moisture Susceptibility of Asphalt Mixtures with Thermodynamically Concepts

<b>Production of self-healing asphalt with steel short fibres and microwave heating: pilot study

Evaluation of Self-healing Performance of Aging Asphalt Based on Dynamic Shear Rheometer

Contact Info

Product

Resources

About