TENSILE POSTCRACK BEHAVIOR OF STEEL FIBER REINFORCED ULTRA-HIGH-STRENGTH CONCRETE

Approximately 30 direct tensile tests have been performed on so-called Compresit matrix. This matrix is based on micro silica particles compacted in between the cement particles. The dense matrix, which shows high brittleness, is provided with ductility by means of steel fibers mixed randomly with respect to both position and orientation. Compressive strengths reaching 200 MPa are experienced with this particular matrix. It is concluded that the micro-mechanical prediction does not seem to be sufficient to model the post-crack behavior of high-strength matrix reinforced with high amounts of steel fibers. However, the post-crack strength provided by the fibers crossing a crack plane is modelled satisfactorily.

Language

  • English

Media Info

  • Pagination: p. 231-245

Subject/Index Terms

Filing Info

  • Accession Number: 00728929
  • Record Type: Publication
  • Report/Paper Numbers: SP-159
  • Files: TRIS
  • Created Date: Nov 13 1996 12:00AM