Performance Evaluation of Asphalt Mixes Containing Steel Slag Aggregate as a Measure to Resist Studded Tire Wear

Studded tire wear can lead to the severe deterioration of asphalt pavement; therefore, the reduction of studded tire wear is urgently needed to improve asphalt pavement conditions and save repair costs. Steel slag is a coproduct of the steel industry and features high hardness compared to conventional crushed aggregate, such as granite and limestone. This study evaluated the performance of hot-mix asphalt (HMA) that contains steel slag aggregate (SSA) as a surface material to mitigate studded tire wear. The physical properties of the SSA were assessed to determine its suitability in HMA. Four percentages (0, 20, 40, and 60%) of SSA were used in asphalt mixes, and the mix designs for the HMA were conducted in accordance with Superpave mix design. The performance of the mixes was evaluated comprehensively in terms of studded tire wear resistance, thermal cracking resistance, moisture susceptibility, and rutting. The results indicate that the addition of steel slag increased the mixtures’ studded tire wear resistance, dynamic modulus values, thermal cracking resistance, and rutting resistance. The inclusion of SSA had no effect on top-down fatigue cracking resistance and moisture susceptibility. Based on these laboratory test results, SSA could be especially beneficial in the northwest region of the United States in surface courses where studded snow tires are used regularly, and could be used to extend the service life of the pavement.

• Record URL:
  https://doi.org/10.1061/(ASCE)MT.1943-5533.0001475
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/08991561
• Supplemental Notes:
  • © 2015 American Society of Civil Engineers.
• Authors:
  • Wen, Haifang
  • Wu, Shenghua
  • Bhusal, Sushanta
• Publication Date: 2016-5

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: 04015191
• Serial:
  • Journal of Materials in Civil Engineering
  • Volume: 28
  • Issue Number: 5
  • Publisher: American Society of Civil Engineers
  • ISSN: 0899-1561
  • EISSN: 1943-5533
  • Serial URL: http://ascelibrary.org/journal/jmcee7

Subject/Index Terms

• TRT Terms: Asphalt pavements; Deterioration; Durability; Fatigue cracking; Hot mix asphalt; Mix design; Moisture content; Rutting; Service life; Studded tires; Superpave; Thermal degradation
• Subject Areas: Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I30: Materials;

Filing Info

• Accession Number: 01581209
• Record Type: Publication
• Files: TRIS, ASCE
• Created Date: Nov 24 2015 9:28AM