Evaluation of steel slag coarse aggregate in hot mix asphalt concrete

AHMEDZADE P., ŞENGÖZ B.

JOURNAL OF HAZARDOUS MATERIALS, cilt.165, ss.300-305, 2009 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 165
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1016/j.jhazmat.2008.09.105
  • Dergi Adı: JOURNAL OF HAZARDOUS MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.300-305
  • Anahtar Kelimeler: Steel slag, Bitumen, Stiffness modulus, Creep stiffness, Electrical conductivity, BASIC OXYGEN FURNACE, MIXTURES
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

This paper presents the influences of the utilization of steel slag as a coarse aggregate on the properties of hot mix asphalt. Four different asphalt mixtures containing two types of asphalt cement (AC-5; AC-10) and coarse aggregate (limestone; steel slag) were used to prepare Marshall specimens and to determine optimum bitumen content. Mechanical characteristics of all mixtures were evaluated by Marshall stability, indirect tensile stiffness modulus, creep stiffness, and indirect tensile strength tests. The electrical sensitivity of the specimens were also investigated in accordance with ASTM D257-91. It was observed that steel slag used as a coarse aggregate improved the mechanical properties of asphalt mixtures. Moreover, volume resistivity values demonstrated that the electrical conductivity of steel slag mixtures were better than that of limestone mixtures. (C) 2008 Elsevier B.V. All rights reserved.