PERFORMANCE OF LATERITIC SOIL-CEMENT ROADS IN THAILAND

Because of the deficiency of rock aggregates for road construction in northeastern Thailand, soil-cement was used to replace crushed rock for base courses nearly two decades ago. There are approximately 1400 kilometers of soil-cement roads constructed in the region. However, this type of construction was stopped ten years ago because reflective cracks appeared in the roads giving cause for concern as regards their long term performance. In order to investigate the possibility of using soil-cement instead of crushed rock, a long term study of the design and performance of existing soil-cement roads in the region was undertaken. The results of the study showed that, even after a length of service of 12 to 16 years, soil-cement roads showed very good performance compared to crushed rock base roads. Soil-cement pavements are more stable, and plastic failure is uncommon. Results of recent research on lateritic soil-cement indicated that reflective cracking could be eliminated if the unconfined compressive strength of soil-cement is kept within a given range. (TRRL)

  • Availability:
  • Supplemental Notes:
    • This paper is also published in the Proceedings of the Fourth REAAA Conference, 22-26 August 1983, Jakarta, Indonesia.
  • Corporate Authors:

    Thailand Department of Highways

    Materials and Research Division
    Bangkok 4,   Thailand 
  • Authors:
    • Rananand, N
    • RUENKRAIRERGSA, T
    • Yossombat, S
  • Publication Date: 1983

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00379315
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Report/Paper Numbers: MR 85 Monograph
  • Files: ITRD, TRIS
  • Created Date: Jan 30 1984 12:00AM