Considering that crack tip undergoes plastic deformation and in turn absorbs strain energy, Griffith's Theory of brittle fracture has been modified. Making use of a semiempirical model with this modification, the crack propagation in a pavement slab caused by ambient shrinkage stresses was studied. To complement the results, a 4 ft. by 2 ft. by 1 in. thick soil cement slab was investigated in the laboratory. In comparing the results in two different soils (cohesive and granular), the paper reports that the crack pattern in cohesive soils tends to form a nearly polygonal shape. The rate of crack propagation, however, is faster in granular soils than in cohesive soils.

Media Info

  • Features: References;
  • Pagination: p. 567-581
  • Serial:
    • Volume: 1

Subject/Index Terms

Filing Info

  • Accession Number: 00158330
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: Conf Paper
  • Files: TRIS
  • Created Date: Oct 13 1977 12:00AM