A THICKNESS DESIGN PROCEDURE FOR PAVEMENTS WITH CEMENT STABILIZED BASES AND THIN ASPHALT SURFACINGS

A thickness design procedure applicable to a pavement system consisting of a cement-stabilized layer resting on a subgrade and protected by a thin asphalt surface layer is described. Stresses and deformations are estimated using layered elastic theory. The first step is to select a thickness adequate to prevent fatigue in the cement-stabilized layer. The second step is to insure that the combination of load and thermal stresses will not crack the stabilized layer. The procedure accounts for the fact that cement-stabilized bases will crack shortly after construction due to shrinkage stresses. Base and subgrade stiffnesses can be determined either by laboratory tests or estimated by approximate procedures. Comparisons of thicknesses obtained by this procedure for highway type loading conditions with those by existing procedures show that the new method gives comparable values. Generally, the thicknesses are great enough to minimize initial pavement cracking, and may, therefore, be conservative for low members of repetitions of heavy loads. /Author/

• Supplemental Notes:
  • Volume I of proceedings of 4th International Conference on Structural Design of Asphalt Pavements, Ann Arbor, Michigan, August 22-26, 1977.
• Corporate Authors:

  University of Michigan, Ann Arbor

  Department of Civil Engineering
  Ann Arbor, MI  United States  48109
• Authors:
  • Mitchell, J K
  • Monismith, C L
• Conference:
  • Volume I of proceedings of 4th International Conference on Structural Design of Asphalt Pavements, Ann Arbor, Michigan, August 22-26, 1977.
• Publication Date: 1977-1

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 409-416

Subject/Index Terms

• TRT Terms: Asphalt; Asphalt pavements; Base course (Pavements); Cement treated soils; Deformation; Elasticity (Mechanics); Loads; Pavement cracking; Pavement design; Pavement layers; Pavements; Shrinkage; Thermal stresses; Thickness
• Uncontrolled Terms: Cement treated bases; Pavement thickness
• Old TRIS Terms: Elastic theory
• Subject Areas: Geotechnology; Highways; Pavements;

Filing Info

• Accession Number: 00170227
• Record Type: Publication
• Report/Paper Numbers: Proceeding
• Files: TRIS
• Created Date: Mar 14 1978 12:00AM