Title:
Performance Evaluation of Polymer Concrete Overlays
Author(s):
ElBatanouny
Publication:
Web Session
Volume:
Issue:
Appears on pages(s):
Keywords:
DOI:
Date:
10/23/2022
Abstract:
The Iowa Department of Transportation (DOT) has used concrete bridge deck overlays to extend the service life of their bridge decks since the 1970s. While portland cement and high-performance concrete overlays are currently standard practice in Iowa, they require extensive deck preparation and three days of moist curing, resulting in undesirably high traffic control costs and long traffic disruptions to users. While relatively more expensive in terms of material cost, polymer concrete overlays are an attractive alternative because they may be completed over a weekend or overnight in some cases. As such, the Iowa DOT decided to install two polymer concrete overlays and conduct a case study to document their performance and the lessons learned. This presentation provides a summary of the completed work that included initial deck evaluation to document the pre-existing condition of the two bridge decks before overlay installation, construction documentation, and post-installation inspections over a period of 3-years to evaluate the performance of the overlays.