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Bond

  • J. Silfwerbrand
  • H. Beushausen
  • L. Courard
Chapter
Part of the RILEM State of the Art Reports book series (RILEM State Art Reports, volume 3)

Abstract

Good bond is a key factor for providing monolithic action in bonded concrete overlays. This chapter starts with three theoretical sections classifying bond in three groups (complete, uncertain, and poor), defining bond strength, and describing the fundamental bond mechanisms. The main part of this chapter covers a thorough description in chronological order of how the 13 most important factors affect bond. All events from removal of deteriorated concrete to concrete placing and curing and long-term exposure are investigated. There exist a number of different methods to determine bond strength and the most frequent ones are briefly described in a separate section. It is shown that there is an evident relationship between the two most frequently used families of test methods, i.e., between methods determining bond strength in tension and bond strength in shear. Furthermore, it is shown that it is possible to provide durable bond in concrete overlays if all operations for concrete removal, surface cleaning, concrete placing, and curing are conductedmeticulously. The chapter is ended by two sections devoted to design strength values in various international codes and performance requirements that can be used for quality control.

Keywords

Bond Strength Interface Shear Bridge Deck Shear Bond Strength Torsional Moment 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  • J. Silfwerbrand
    • 1
  • H. Beushausen
    • 2
  • L. Courard
    • 3
  1. 1.Swedish Cement and Concrete Research Institute (CBI)StockholmSweden
  2. 2.Department of Civil EngineeringUniversity of Cape TownCape TownSouth Africa
  3. 3.GeMMe – Building Materials, ArGEnCo DepartmentUniversity of LiègeLiègeBelgium

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