Effects of Construction Time and Coarse Aggregate on Bridge Deck Cracking

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dc.contributor.author Riding, Kyle A.
dc.contributor.author Poole, Jonathan L.
dc.contributor.author Schindler, Anton K.
dc.contributor.author Juenger, Maria C. G.
dc.contributor.author Folliard, Kevin J.
dc.date.accessioned 2010-08-26T18:56:03Z
dc.date.available 2010-08-26T18:56:03Z
dc.date.issued 2010-08-26T18:56:03Z
dc.identifier.uri http://hdl.handle.net/2097/4755
dc.description.abstract Bridge deck temperature changes in the first few days after placement due to the concrete heat of hydration and changes in ambient conditions have long been identified as a significant contributor to early-age cracking. The goal of this project was to develop a method of quantifying how materials and construction methods can influence the thermal stresses in bridge decks. A series of tests on concrete mixtures were then performed to quantify the concrete material thermal stress behavior in bridge decks with different placement times and coefficients of thermal expansion. Concrete with a high coefficient of thermal expansion placed in the morning led to the development of thermal stresses equal to 75% of the stress at cracking. It was also found that the thermal stresses could be reduced by up to 50% by using concrete with a lower coefficient of thermal expansion and placing at night. en_US
dc.rights Permission to archive granted by Daniela Bedward, Publishing Services Assistant, American Concrete Institute, Aug. 13, 2010 en_US
dc.subject Bridge decks en_US
dc.subject Cracking en_US
dc.subject Thermal stresses en_US
dc.title Effects of Construction Time and Coarse Aggregate on Bridge Deck Cracking en_US
dc.type Article (publisher version) en_US
dc.date.published 2009 en_US
dc.citation.epage 454 en_US
dc.citation.issue 5 en_US
dc.citation.jtitle ACI Materials Journal en_US
dc.citation.spage 448 en_US
dc.citation.volume 106 en_US
dc.contributor.authoreid riding en_US

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