TENSILE STRESS-STRAIN PROPERTIES OF SIFCON

Slurry-infiltrated fiber concrete (SIFCON) composites differ from conventional fiber reinforced concrete in at least two aspects: they contain a much larger volume fraction of fibers, and they use a matrix consisting of very fine particles. As such, they could be made simultaneously to exhibit outstanding strength and ductility properties. This research deals with the tensile stress-strain properties of SIFCON and comprises an experimental and an analytical program. Parameters investigated include the matrix composition and the fiber type where length, aspect ratio, surface characteristics, and overall fiber geometry vary. It is shown that SIFCON composites can exhibit tensile strength up to 4 ksi (28 MPa) at peak strains ranging from 1 to 2 %. A model is proposed to predict the ascending branch of the stress-strain curves of SIFCON from its compressive strength and its fiber-reinforcing parameters.

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  • Accession Number: 00485178
  • Record Type: Publication
  • Report/Paper Numbers: Title No. 86-M25
  • Files: TRIS
  • Created Date: Jun 30 1989 12:00AM