Utilisation of steel slag as an aggregate replacement in porous asphalt mixtures

Mohd Rosli Hainin, Gatot Rusbintardjo, Mohd Anwar Sahul Hameed, Norhidayah Abdul Hassan, Nur Izzi Md Yusoff

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The utilization of porous asphalt mixtures has become increasingly important. This type of pavement has been used in many developed countries for many years with the addition of by-products to reduce the consumption of aggregates in road construction. Recently, the Malaysian Public Works Department (PWD) launched specifications for specialty mixtures and surface treatments, including porous asphalt. Therefore, this study was conducted to investigate the use of steel slag as a conventional aggregate replacement in porous asphalt mixtures. Two porous asphalt gradations, designated as Grade A and Grade B, were used in this study in accordance with the new specification - JKR/SPJ/2008-S4. Steel slag was chosen because its characteristics are quite similar to those of aggregates compared with other by-products such as crumb rubber, glass and many more. It was observed that steel slag aggregate meets all the criteria of the PWD specification except for the water absorption test. The samples of steel slag aggregate mixtures produced were tested for resilient modulus, rutting and permeability, which were later compared with conventional aggregate mixtures. The results show that there is a significant difference in terms of resilient modulus between the steel slag aggregate-based mixture and the conventional aggregate-based mixture. The same scenario was observed in the rutting test, where the steel slag aggregate mixture possesses a higher rut resistance. However the mixtures made from conventional aggregate had higher permeability values compared to the steel slag mixtures. It can be concluded that the use of steel slag could performed admirably during high traffic loading.

Original languageEnglish
Pages (from-to)67-73
Number of pages7
JournalJurnal Teknologi (Sciences and Engineering)
Volume69
Issue number1
DOIs
Publication statusPublished - 2014

Fingerprint

Asphalt mixtures
Slags
Steel
Public works
Asphalt
Specifications
Byproducts
Road construction
Water absorption
Pavements
Surface treatment
Rubber
Glass

Keywords

  • Porous asphalt
  • Resilient modulus
  • Rutting and permeability
  • Steel slag

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Utilisation of steel slag as an aggregate replacement in porous asphalt mixtures. / Hainin, Mohd Rosli; Rusbintardjo, Gatot; Hameed, Mohd Anwar Sahul; Hassan, Norhidayah Abdul; Md Yusoff, Nur Izzi.

In: Jurnal Teknologi (Sciences and Engineering), Vol. 69, No. 1, 2014, p. 67-73.

Research output: Contribution to journalArticle

Hainin, Mohd Rosli ; Rusbintardjo, Gatot ; Hameed, Mohd Anwar Sahul ; Hassan, Norhidayah Abdul ; Md Yusoff, Nur Izzi. / Utilisation of steel slag as an aggregate replacement in porous asphalt mixtures. In: Jurnal Teknologi (Sciences and Engineering). 2014 ; Vol. 69, No. 1. pp. 67-73.
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