MATRIC SUCTION MONITORING IN AN EXPANSIVE SOIL SUBGRADE IN KENYA

Pavements constructed in areas with expansive soil subgrades suffer damage caused by changes in bearing capacity and movements of the subgrade soil due to seasonal variations in moisture content. In a bid to improve the understanding of the behaviour of pavements constructed on unsaturated expansive soils, a research project was initiated to establish typical variations of matric suction in pavement layers. The selection, calibration and installation of thermal conductivity sensors in a pavement test site in Kenya are presented in this paper, as are typical variations of matric suction with pavement geometry and time. (A) For the covering abstract see IRRD 881647.

Language

  • English

Media Info

  • Features: References;
  • Pagination: p. 631-5

Subject/Index Terms

Filing Info

  • Accession Number: 00729123
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 90-5410-583-6
  • Files: ITRD
  • Created Date: Dec 12 1996 12:00AM