Internal Curing of Bridge Decks and Concrete Pavement to Reduce Cracking

Project Details
STATE

WI

SOURCE

RIP

START DATE

10/31/18

END DATE

10/31/20

RESEARCHERS

Bill Oliva

SPONSORS

Wisconsin DOT

KEYWORDS

Bridge decks, concrete, Cracking

Project description

Wisconsin Department of Transportation (WisDOT) has been successfully managing 12,000 total centerline miles of highway system and 5,293 state-owned bridges. The 2016 data shows 98.1 percent of the backbone system and 79.2 percent of the non-backbone system in fair and above condition. Currently 96.9 percent of State owned or maintained bridges have a good rating or fair rating1. Even though the condition of majority transportation system in Wisconsin is in fair or above condition, WisDOT has struggled to control cracking on bridge deck and concrete pavement in our High-Performance Concrete (HPC) and conventional concrete bridge (Grade A) construction projects (Standard Specification Sec. 501 and Sec. 415). Higher strength, lower water to cement ratio (w/c) concrete has been promoted for over 20 years due to the desire for increased strength and reduced permeability.
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