Evaluation of Performance Based Concrete for Bridge Decks

The Washington State Department of Transportation (WSDOT) revised the concrete specification for bridge decks in 2011 to be more performance based with the desired effect of having less early-age shrinkage cracking. This report evaluates a sample of the bridges constructed with the revised performance based specification against a sample of bridges constructed with the traditional WSDOT specification.

The evaluation consists of visual inspections, noting cracks and developing crack intensity diagrams for each bridge. These diagrams are then used to rank and compare the bridge decks. The outcome of this study is that the bridge decks constructed with the performance based specification have much less early-age shrinkage cracking than those constructed using the traditional WSDOT specification.
Publication Date: 
Tuesday, June 30, 2015
Publication Number: 
WA-RD 845.1
Last modified: 
10/12/2016 - 15:42
Authors: 
Eric Ferluga, Patrick Glassford
Originator: 
Washington (State). Department of Transportation. Bridge and Structures Office
Number of Pages: 
295
Subject: 
Bridge decks, Concrete, Performance based specifications, Admixtures, Shrinkage, Cracking of concrete pavements, Evaluation and assessment, Alternatives analysis, Recommendations.