Evaluation of Concrete Overlays for Bridge Applications

This report documents performance of 12 concrete bridge decks that were rehabilitated and/or protected with latex-modified concrete and low-slump dense concrete overlays in order to prevent future de-icing salt penetration and reinforcing steel corrosion.

Regardless of concrete deterioration caused by rebar corrosion, the overlaid bridge decks will require maintenance in the form of resurfacing in the future. This maintenance may be due to traffic action and a severe environment causing surface distress such as scaling, rutting, and a lack of skid resistance, or stripping of the overlays from the decks.

There are indications that the continued corrosion of reinforcing steel in the salt contaminated underlying decks is less extensive in the absence of overlay surface cracking.


Publication Date: 
Thursday, October 1, 1987
Publication Number: 
WA-RD 137.1
Last modified: 
10/12/2016 - 15:41
Khossrow Babaei.
Washington State Transportation Center (TRAC)
Number of Pages: 
Bridge decks, Concrete, Corrosion protection, Defects, Deicing chemicals, Density, Deterioration, Environment, Evaluation, Latex modified concrete, Maintenance, Overlays (Pavements), Pavement distress, Pavements, Performance, Reinforcing steel, Resurfacing, Slump test, Traffic.