1 Introduction</h5> Mitigation of cracking in concrete bridge decks remains a challenging problem across the United States, with the dominant pattern of cracking being transverse along the deck as shown in Fig. 1 . Though many factors can exacerbate this cracking (such as traffic loads, temperature gradients, and steel deck corrosion), most cracks are initially formed due to shrinkage of concrete. Concrete shrinks anywhere that it is poured, but bridge decks are especially vulnerable to cracking due to their large surface-to-volume ratios, which exposes the concrete to a high water evaporation rate. Even so, there are many ways to counteract the effects of shrinkage, reduce cracking, and increase the life-span and durability of bridges. Due to the overwhelming amount of agreement that restraint shrinkage is the primary cause of cracking, this study focuses on combating that type of shrinkage.</P>Restraint shrinkage that occurs soon after the deck has been poured is theorized to be one of the primary causes of cracking. In order to verify this, bridges in the state of Illinois were inspected and it was found that regular transverse crack patterns occurred in both positive and negative moment regions in multiple decks. Many of the inspected bridges
Construction and Building Materials – Elsevier
Published: Feb 15, 2014
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