Effect of various filler types on the properties of porous asphalt mixture

Nurul Athma Mohd Shukry, Norhidayah Abdul Hassan, Mohd Ezree Abdullah, Mohd Rosli Hainin, Nur Izzi Md Yusoff, Ramadhansyah Putra Jaya, Azman Mohamed

Research output: Contribution to journalConference article

4 Citations (Scopus)

Abstract

The open structure of porous asphalt exposes a large surface area to the effects of air and water, which accelerates the oxidation rate and affects the coating properties of the binder. These factors may influence the adhesive strength of the binder-aggregate and lead to cohesive failure within the binder film, contributing to aggregate stripping and moisture damage. The addition of fillers in asphalt mixtures has been identified to stiffen the asphalt binder and improve mixture strength. This study investigates the effect of various filler types (hydrated lime, cement, and diatomite) on the properties of porous asphalt. Compacted samples of porous asphalt were prepared using Superpave gyratory compactor at the target air void content of 21%. Each sample was incorporated with 2% of filler and polymer-modified binder of PG76. The morphology and chemical composition of fillers were investigated with a field emission scanning electron microscope (FESEM) and energy dispersive X-ray (EDX) analysis. The properties of porous asphalt were evaluated in terms of permeability, abrasion loss, resilient modulus, and indirect tensile strength. All mixtures were found to show high permeability rates. Mixtures with hydrated lime exhibited lower abrasion loss compared to mixtures with cement and diatomite. The use of diatomite increases the resistance of the mixtures to rutting and moisture damage compared to other fillers as shown by the enhanced resilient modulus and indirect tensile strength.

Original languageEnglish
Article number012036
JournalIOP Conference Series: Materials Science and Engineering
Volume342
Issue number1
DOIs
Publication statusPublished - 6 Apr 2018
EventInternational Conference on Innovative Technology, Engineering and Sciences 2018, iCITES 2018 - Pekan, Pahang, Malaysia
Duration: 1 Mar 20182 Mar 2018

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asphalt
Asphalt mixtures
Asphalt
Binders
Fillers
Hydrated lime
Abrasion
Cements
Tensile strength
Moisture
Superpave
Energy dispersive X ray analysis
Air
Field emission
Adhesives
Polymers
Electron microscopes
Scanning
Coatings
Oxidation

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

Cite this

Effect of various filler types on the properties of porous asphalt mixture. / Mohd Shukry, Nurul Athma; Hassan, Norhidayah Abdul; Abdullah, Mohd Ezree; Hainin, Mohd Rosli; Md Yusoff, Nur Izzi; Jaya, Ramadhansyah Putra; Mohamed, Azman.

In: IOP Conference Series: Materials Science and Engineering, Vol. 342, No. 1, 012036, 06.04.2018.

Research output: Contribution to journalConference article

Mohd Shukry, Nurul Athma ; Hassan, Norhidayah Abdul ; Abdullah, Mohd Ezree ; Hainin, Mohd Rosli ; Md Yusoff, Nur Izzi ; Jaya, Ramadhansyah Putra ; Mohamed, Azman. / Effect of various filler types on the properties of porous asphalt mixture. In: IOP Conference Series: Materials Science and Engineering. 2018 ; Vol. 342, No. 1.
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