SWELLING SOILS

Lime is often added to clay soils before pavement construction to improve mechanical stability and durability. Mixing lime with soils high in sulfate, though, can be disastrous, as the resulting expansion and cracking is referred to as heave. This article describes a new field test procedure that uses a permittivity probe and regression equation models to determine whether a clay soil is likely to suffer from sulfate-induced heave. The seven-step procedure is explained. Fly ash can be substituted for lime when necessary.

Language

  • English

Media Info

  • Features: Photos;
  • Pagination: p. 8-9
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00716518
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Feb 24 1996 12:00AM