Innovative Approaches To Improving The Bond Between Concrete and Steel Surfaces
Abstract
A reactive silicate layer fused onto the surface of reinforcing steel provides a coupling layer that allows a very strong bond to develop between hydrating Portland cement paste and the surface of the steel. The reactive layer eliminates the problem of a weak, low-density hydrated, layer of paste forming on the surface of the steel. Steel enameling techniques are used to bond a low-melting point glass frit onto the steel. A high melting point hydraulically reactive silicate (such as Portland cement) embedded in the bonded glass reacts with the surrounding paste and the paste adheres strongly to the coupling layer. Bench-scale pull-out tests show that the bond can be up to four times that observed with uncoated rods. The porcelain-based coating can potentially provide protection from corrosion for the coated reinforcing elements.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 2006
- Accession Number
- ADA481587
Entities
People
- Charles A. Weiss
- Donna C. Day
- Earl H. Baugher Jr.
- Mariangelica Carrasquillo
- Melvin C. Sykes
- Philip G. Malone
Organizations
- Engineer Research and Development Center