Use of steel slag aggregate in asphalt concrete mixes

There are three major steel-manufacturing factories in Jordan. All of their by-product, steel slag, is dumped randomly in open areas, causing many environmentally hazardous problems. This research was intended to study the effectiveness of using steel slag aggregate (SSA) in improving the engineering properties of locally produced asphalt concrete (AC) mixes. The research started by evaluating the toxicity and chemical and physical properties of the steel slag. Then 0%, 25%, 50%, 75%, and 100% of the limestone coarse aggregate in the AC mixes was replaced by SSA. The effectiveness of the SSA was judged by the improvement in indirect tensile strength, resilient modulus, rutting resistance, fatigue life, creep modulus, and stripping resistance of the AC samples. It was found that replacing up to 75% of the limestone coarse aggregate by SSA improved the mechanical properties of the AC mixes. The results also showed that the 25% replacement was the optimal replacement level. (A)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03151468
• Authors:
  • ASI, IM
  • QASRAWI, HY
  • SHALABI, FI
• Publication Date: 2007

Language

• English

Media Info

• Media Type: Print
• Pagination: pp 902-911
• Serial:
  • Canadian Journal of Civil Engineering
  • Volume: 34
  • Issue Number: 8
  • Publisher: National Research Council of Canada
  • ISSN: 0315-1468
  • Serial URL: http://www.nrcresearchpress.com/loi/cjce

Subject/Index Terms

• TRT Terms: Aggregates; Bituminous mixtures; Creep; Durability; Mechanical fatigue; Rutting; Slag; Steel; Tension
• Geographic Terms: Jordan
• Subject Areas: Geotechnology; Materials; I33: Other Materials used in Pavement Layers; I36: Aggregates;

Filing Info

• Accession Number: 01089067
• Record Type: Publication
• Source Agency: Transportation Association of Canada (TAC)
• Files: TAC
• Created Date: Feb 26 2008 11:48AM