Bonded Concrete Overlays

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Title: Bonded Concrete Overlays

Author(s): Johan Silfwerbrand

Publication: Concrete International

Volume: 39

Issue: 5

Appears on pages(s): 31-36

Keywords: fatigue, strength, interface, shotcrete

DOI: 10.14359/51700747

Date: 5/1/2017

Abstract:
Bonded concrete overlays are frequently used to repair concrete pavements, bridge decks, and industrial floors. They provide significantly higher load-carrying capacity and stiffness than unbonded overlays of equal thickness. Over 30 years of Swedish research indicates that a durable bond between the overlay and the existing concrete can be achieved with proper removal, surface preparation, placement, and curing.

Related References:

1. Carlswärd, J., “Shrinkage Cracking of Steel Fibre Reinforced Self Compacting Concrete Overlays,” doctoral thesis, Luleå Technical University, Department of Civil Engineering, Luleå, Sweden, 2006, 250 pp.

2. Turatsinze, A.; Beushausen, H.; Gagne, R.; Granju, J.-L.; Silfwerbrand, J.; and Walter, R., “Chapter 7: Debonding,” Bonded Cement-Based Material Overlays for the Repair, the Lining or the Strengthening of Slabs or Pavements, State-of-the-Arts Report of the RILEM Committee 193-RLS, B. Bissonnette, L. Courard, D.W. Fowler, and J.-L. Granju, eds., Springer, Dordrecht, Heidelberg, London, New York, 2011, 186 pp.

3. Silfwerbrand J., “Stresses and Strains in Composite Concrete Beams Subjected to Differential Shrinkage,” ACI Structural Journal, V. 94, No. 4, Jul. 1997, pp. 347-353.

4. Carter, A.; Gurjar, S.; and Wong, J., “Debonding of Highway Bridge Deck Overlays,” Concrete International, V. 24, No. 7, Jul. 2002, pp. 51-58.

5. Granju, J.-L., “Debonding of Thin Cement-Based Overlays,” Journal of Materials in Civil Engineering, ASCE, V. 13, No. 2, Apr. 2001, pp. 114-120.

6. Silfwerbrand, J., “Bonded Concrete Overlays for Repairing Concrete Structures,” Failure, Distress and Repair of Concrete Structures, N. Delatte, ed., Woodhead Publishing Limited, Oxford, Cambridge & New Dehli, 2009, pp. 208-243.

7. Silfwerbrand, J., and Beushausen, H., “Bonded Concrete Overlays – Bond Strength Issues,” Proceedings of the International Conference on Concrete Repair, Rehabilitation and Retrofitting, M.G. Alexander, H.-D. Beuhausen, F. Dehn, and P. Moyo, eds., Cape Town, South Africa, Nov. 2005, 512 pp.

8. Silfwerbrand, J., “Interaction between Partly Chipped Concrete Slab and Overlay Beam Tests,” Bulletin No. 142, Department of Structural Mechanics and Engineering, KTH Royal Institute of Technology, Stockholm, Sweden, 1984, 72 p. (in Swedish)

9. Silfwerbrand, J., “Repair of Concrete Damages Using Shotcrete. Tests on Beams Subjected to Static and Fatigue Loading,” Bulletin No. 153, Department of Structural Mechanics and Engineering, KTH Royal Institute of Technology, Stockholm, Sweden, 1988, 77 p. (in Swedish)

10. Silfwerbrand, J., “Concrete Repair with Shotcrete,” Proceedings of the IABSE Symposium on Durability of Structures, Lisbon, Portugal, Sept. 1989, pp. 785-790.

11. Silfwerbrand, J., and Paulsson, J,. “Better Bonding of Bridge Deck Overlays,” Concrete International, V. 20, No. 10, Oct. 1998, pp. 56-61.




  

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