MILDGLASS: GFRP Strand for Resilient Mild Pre-Stressed Concrete

This project develops corrosion-resistant tendons for PC application that, in addition to durability and mechanical performance, exhibits favorable constructability and cost characteristics. These Glass Fiber Reinforced Polymer (GFRP) tendons address the need for cost-effective corrosion-resistant prestressing systems. These tendons are coilable, shippable and compatible with traditional techniques applied to steel-PC tensioning and construction. The focus of this project is on GFRP that retains immunity to corrosion and maintains a material cost comparable to traditional carbon steel reinforcement ($1.15/ft.) while also showing higher strain at failure (2.0% ultimate elongation) and lower modulus of elasticity (approximately 45 GPa) with respect to other non-corrosive reinforcing solutions such as High Strength Stainless Steel (HSSS) and Carbon FRP (CFRP). The low modulus is an advantageous feature in PC construction during fabrication (larger and more controllable displacement at prestressing) and design (lower elastic shortening).

Language

  • English

Media Info

  • Media Type: Digital/other
  • Edition: Final Report
  • Features: Figures; Photos; References;
  • Pagination: 39p
  • Serial:
  • Publication flags:

    Open Access (libre)

Subject/Index Terms

Filing Info

  • Accession Number: 01741857
  • Record Type: Publication
  • Report/Paper Numbers: NCHRP IDEA Project 207
  • Files: TRIS, TRB, ATRI
  • Created Date: Jun 3 2020 8:51AM