Fiber Reinforced Concrete for Structure Component

Deterioration of concrete is one of the major causes for poor performance and shortened life expectancy of road way infrastructures nationwide. Transportation departments are challenged to extend the service life of PCC (Portland cement concrete) structural components such as columns, bridge decks, and abutments in light of budget constraints. Because traditional concrete material has very poor resistance to tensile stress, reinforced structures often experience cracking and spalling, leading to accelerated corrosion of imbedded reinforcement, failure under severe loading, and lack of durability. One technology that may generate promising solution to this longevity problem is applying fiber reinforced concrete (FRC) material to these dynamically loaded structural components. Originated in the 1950's, concrete material reinforced with steel (SFRC), glass (GFRC), and synthetic fibers such as polypropylene fibers has been used in many structural engineering applications for several decades. It has a solid reputation for superior resistance to crack development and abrasion. Studies also indicated improvement on strength, ductility, resistance to dynamic loading, and resistance to freeze-thaw effects. Because of these improved properties, FRC has been used in many forms including bridge deck, repair, and building beam column connections. Currently, there is a wide variety of FRC products available for engineering applications, the applicability and cost-effectiveness of different products has not been evaluated systematically for the South Dakota Department of Transportation (SDDOT) in the past. There are many variables in the adoption of FRC products. Micro-synthetic or larger (macro) fibers are manufactured from polypropylene, polyethylene, polyester, nylon and other synthetic materials such as carbon, aramid and other acrylics. Depending on fiber type and application, dosage rates may range from 0.03 to 0.2% by volume of concrete (0.5 to 3.0 lb/y3). Engineers find it challenging to interpret performance claims by manufacturers based on unstandardized testing procedures and what seem to be high fiber dosage recommendations.

Language

  • English

Project

  • Status: Completed
  • Funding: $100000
  • Contract Numbers:

    DTRT12-G-UTC08

  • Sponsor Organizations:

    Research and Innovative Technology Administration

    University Transportation Centers Program
    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    Federal Highway Administration

    Department of Pavement Technology, HIPT-10
    1200 New Jersey Avenue, SE
    Washington, DC    20590
  • Project Managers:

    Kline, Robin

  • Performing Organizations:

    South Dakota State University, Brookings

    Department of Civil and Environmental Engineering
    Brookings, SD  United States  57007
  • Principal Investigators:

    Wehbe, Nadim

  • Start Date: 20120101
  • Expected Completion Date: 20161231
  • Actual Completion Date: 20180209
  • Source Data: MPC-437

Subject/Index Terms

Filing Info

  • Accession Number: 01497115
  • Record Type: Research project
  • Source Agency: Mountain-Plains Consortium
  • Contract Numbers: DTRT12-G-UTC08
  • Files: UTC, RiP
  • Created Date: Oct 30 2013 1:00AM