High-early-strength engineered cementitious composites

Quick repair and retrofitting of existing infrastructure requires durable high-early-strength materials delivering not only adequate strength within hours of placement but also significantly prolonging maintenance intervals. This paper describes a class of newly developed polyvinyl alcohol fiber-reinforced, high-early-strength engineered cementitious composite (ECC) materials featuring extraordinary ductility. While micromechanics were applied in many aspects of the material design process, emphasis in this research was placed on the tailoring of preexisting flaw size distribution in matrix for high tensile ductility. The resulting high-early-strength ECC materials are capable of delivering a compressive strength of 21 MPa within 4 hours of placement and retaining long-term tensile strain capacity above 2%.

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01025088
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 31 2006 9:29AM