Prevention of Cracks in Concrete Birdge Decks: Report on Observations of BridgeDecks Constructed with Type K Cement

摘要

Transverse cracking in newly constructed concrete bridge decks is a concern inPennsylvania. One of the solutions under investigation is the use of Type K cement. This project observed placement of several Pennsylvania bridge decks using Type K cement; measured shrinkage of concrete, and evaluated the post-construction performance of those decks with respect to cracking. The research recommends the maximum allowable shrinkage to limit cracking of bridge decks built with Type K cement to an acceptable level.