Asphalt pavement accounts for ~87% of the overall in Korea. However, owing to black surface and extensive cover area, ambient temperature rapidly increases, thereby contributing urban heat island effect. Therefore, materials with modified porosity conditions have been developed; however, studies on heat-related characteristic values such are insufficient. In this study, thermal characteristics ...

This study investigated the effect of distribution aged binder from reclaimed asphalt pavement (RAP) on fracture tolerance recycled mixtures. Two RAP sources (one coarse, one fine), virgin polymer-modified binder, and four contents (0 %, 20 30 40 %) were used to produce a total seven Fracture was assessed in terms energy density (FED) at three levels: interstitial component (IC) (composed effec...

The diffusion between the virgin and aged asphalt binder in recycled mixture is a crucial factor affecting its macro-mechanical performance. In this study, combined model of virgin-aged layered structure was assembled based on molecular dynamics (MD) method. A four-component twelve-category molecule were used to asphalt. behaviors characterized by mean square displacement (MSD), coefficient, re...

Conventional hot mix plants operate to support large paving projects, making production more economic with high volume output. When repairs and maintenance are needed, it can be challenging maintain small quantities of bituminous mixtures at a sufficient temperature, especially in the case winter maintenance. Consequently, repair materials cannot compacted desired level on some occasions. This ...

The recyclability of waste cooking oil (WCO) as rejuvenator for aged asphalt mixture improved the serviceability pavement itself. Currently, researcher is exploring new potential WCO modifier binder modification. However, issue compatibility properties in modification with arises since poor mechanical performance globally recorded thus reflected weakness adhesion bonding inside material. Basica...

This study presents an application of artificial neural networks (ANN) for the prediction of repeated creep test results for polypropylene (PP) modified asphalt mixtures. Polypropylene fibers are used to modify the bituminous binder in order to improve the physical and mechanical properties of the resulting asphaltic mixture. Marshall specimens, fabricated with M-03 type polypropylene fibers at...