INFLUENCE OF SEASONAL VARIATION OF SUBGRADE MOISTURE ON THE DESIGN AND PERFORMANCE OF FLEXIBLE PAVEMENTS

Moisture variation in the subgrade below semi-impervious bituminous pavements has a significant influence on the performance of the pavement, depending on soil, environmental and climatic conditions. This aspect has to be taken into account while deciding on the strength of the subgrade which, in turn, influences pavement thickness design. The Highways Research Station in Madras undertook detailed studies of the variation in the moisture of pavement subgrades under different climatic and soil conditions in the tamil nadu state. As many as 34 sites were investigated between 1962 and 1976. This paper gives a brief review of the research carried out abroad and on the experimental sites. It is hoped that the results obtained will help to determine the maximum moisture that a compacted subgrade soil would retain from the knowledge of a given site, rainfall and engineering characteristics of the soil. For the covering abstract see TRIS 450968. (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03764788
• Supplemental Notes:
  • Indian Roads Congress, Highway Research Bulletin N24, Soil Engineering, 1984.
• Authors:
  • Latheef, S A
  • RAGHAVAN, N
• Publication Date: 1984

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 27-55
• Serial:
  • Highway Research Bulletin, (New Delhi)
  • Issue Number: 24
  • Publisher: Indian Roads Congress
  • ISSN: 0376-4788

Subject/Index Terms

• TRT Terms: Climate; Durability; Environment; Flexible pavements; Moisture content; Network analysis (Planning); Pavement design; Rain; Rainfall; Seasons; Subgrade (Pavements)
• Uncontrolled Terms: Modifications; Network flows; Seasonal variations
• Geographic Terms: India
• ITRD Terms: 5910: Durability; 2944: Flexible pavement; 8045: India; 9048: Modification; 5920: Moisture content; 3055: Pavement design; 2507: Rain; 2525: Season; 2950: Subgrade; 2545: Weather
• Subject Areas: Design; Geotechnology; Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 00450970
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Aug 27 2004 9:57PM