HPC in Structural Applications and in Building Costs

High Performance Concrete (HPC) opens new perspectives to several applications in civil engineering. The possibility of using HPC in order to have adequate strength at an early age is analyzed here by considering the real situation of a small span bridge, located in an industrial area, that was open to traffic 24 hours after casting since the compressive strength, equal to 80 MPa, reached the design value. Due to the strategic location of the bridge, this allowed savings in industrial costs related to the limitation or interruption of heavy traffic over the bridge. Concrete with an enhanced toughness, due to the presence of steel fibers, was used for prestressed thin-web roof elements. Experimental results from full-scale elements show that steel fibers can almost totally replace conventional (welded mesh) reinforcement. Once again, HPC enables lower construction costs due to reduced labor needed for the replacement of the welded mesh. Finally, some considerations on the development of the building codes with respect to the new concrete performances are presented.

Language

  • English

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 13-26
  • Monograph Title: Role of Concrete in Sustainable Development

Subject/Index Terms

Filing Info

  • Accession Number: 01010842
  • Record Type: Publication
  • ISBN: 0727732471
  • Files: TRIS
  • Created Date: Nov 28 2005 10:34AM