SULFUR AS A PARTIAL REPLACEMENT FOR ASPHALT IN PAVEMENT

A full-scale experiment on introducing sulfur as a partial replacement for asphalt in road-paving mixtures was conducted in Kuwait. Laboratory and field testing programs were designed and carried out to analyze and investigate the results of this experiment. The optimum sulfur percentage in the sulfur-asphalt binder and the optimum binder content were established for the investigated mixtures at various curing ages. These mixtures were used in constructing two sections, each 0.67-mi long, of the driving lane of a main road. The first one, considered a control section, was constructed using the conventional asphalt concrete mixture. The second was the test section in which the sulfur-asphalt mixture was used in the entire pavement structure. The sulfur-asphalt mixture was found to significantly reduce rutting on the road. This was established in both field and laboratory investigations. Laboratory-aged samples showed longer fatigue life (indirect tensile stress control fatigue test). Inclusion of sulfur in the mixture was also shown to improve Marshall stability, indirect tensile strenth, and the rate at which strength was gained during curing. On the other hand, including sulfur made the mixture more susceptible to loss of stability on immersion in water and to having a lower resilient modulus at higher temperatures (above 95 deg F). Field Dynaflect measurements showed higher deflections for the road test section than for the control section.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1987/1115/1115-014.pdf
• Record URL:
  • https://scholar.google.com/scholar_lookup?title=SULFUR+AS+A+PARTIAL+REPLACEMENT+FOR+ASPHALT+IN+PAVEMENT&author=F.+Bayomy&author=S.+Khedr&publication_year=1987
• Availability:
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• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Nonbituminous Components of Bituminous Paving Mixtures. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Bayomy, Fouad
  • Khedr, Safwan A
• Conference:
  • 66th Annual Meeting of the Transportation Board
  • Location: Washington District of Columbia, United States
  • Date: 1987-1-12 to 1987-1-15
• Publication Date: 1987

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 150-160
• Monograph Title: Asphalt Materials and Mixtures
• Serial:
  • Transportation Research Record
  • Issue Number: 1115
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Binder content; Deflection; Dynaflect; Fatigue (Mechanics); Field tests; High temperature; Laboratory tests; Marshall test; Modulus of resilience; Reduction (Chemistry); Ruts (Pavements); Strength of materials; Sulfur; Sulfur asphalt; Tension tests; Test sections
• Uncontrolled Terms: Fatigue life; Indirect tensile test; Rut; Sulfur content
• Old TRIS Terms: Dynaflect deflections; Reduction
• Subject Areas: Highways; Materials; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 00467879
• Record Type: Publication
• ISBN: 0309044603
• Files: TRIS, TRB, ATRI
• Created Date: Mar 31 1988 12:00AM