Engineered Cementitious Composites with High-Volume Fly Ash

This paper discusses the mechanical performance of engineered cementitious composites (ECCs), a type of high-performance fiber-reinforced cementitious composites (HPFRCC) capable of withstanding significant strain-hardening under tension. In considering ECCs that incorporate high volume fly ash and bottom ash, the research concentrates on determining the influence of fly ash content on key micromechanics properties found to be relevant to composite ductility. Results show that the polyvinyl alcohol (PVA) fiber/matrix interface bond and matrix toughness has a tendency to be reduced when a high volume of fly ash is present; to compensate, high tensile strain capacity shows an increase. Moreover, compressive strength development is found to constrain the substitution limit of cement with ash.

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01053977
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 11 2007 7:46AM