International Concrete Abstracts Portal

  


Title: Getting Better Bond in Concrete Overlays

Author(s): John A. Wells, Robert D. Stark, and Dimos Polyzois

Publication: Concrete International

Volume: 21

Issue: 3

Appears on pages(s): 49-52

Keywords: bond strength; concrete overlay; concrete repair; debonding; surface preparation

DOI:

Date: 3/1/1999

Abstract:
The continuing surge in structural restoration has generated considerable interest in methods and materials used to bond fresh, plastic concrete to hardened concrete. Resurfacing offices, warehouses, bridge decks, and parking structures with bonded concrete overlays is a well-recognized restoration option. In our practice, we have frequently investigated cracking and debonding in concrete overlays and have observed considerable disagreement between owners, engineers, and contractors on what constitutes acceptable surface preparation and/if necessary, what type of bonding agents to be used to enhance the bond between an overlay and the existing substrate.




  


ABOUT THE INTERNATIONAL CONCRETE ABSTRACTS PORTAL

  • The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.