Early Opening of Concrete Pavements to Trafficby David D. Davis, Univ of Illinois, United States,
Michael I. Darter, Univ of Illinois, United States,
Abstract: Current practice for opening slab replacements and full-depth repairs to traffic ranges widely from 2 hours to several days. A rational and simple procedure is urgently needed for determining the minimum time required for a given concrete mixture to cure under prevailing temperature conditions before opening to traffic to avoid significant fatigue damage which would lead to premature cracking. To this end, a field and analytical study was conducted to determine the minimum curing time for a variety of mixtures, types of curing, temperature conditions and slab thicknesses. Guidelines are presented for field applications.
Subject Headings: Slabs | Traffic management | Curing | Concrete pavements | Concrete | Mixtures | Field tests | Model tests
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