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Author Antico, F.C.; De la Varga, I.; Esmaeeli, H.S.; Nantung, T.E.; Zavattieri, P.D.; Weiss, W.J. pdf  doi
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  Title Using accelerated pavement testing to examine traffic opening criteria for concrete pavements Type Journal Article
  Year 2015 Publication Construction And Building Materials Abbreviated Journal Constr. Build. Mater.  
  Volume 96 Issue Pages 86-95  
  Keywords Early age-cracking; Opening to traffic; Accelerated pavement testing; Modeling; Finite element  
  Abstract The risk of cracking in a concrete pavement that is opened to traffic at early ages is related to the maximum tensile stress sigma(I), that develops in the pavement and its relationship to the measured, age dependent, flexural strength of a beam,f(r). The stress that develops in the pavement is due to several factors including traffic loading and restrained volume change caused by thermal or hygral variations. The stress that develops is also dependent on the time-dependent mechanical properties, pavement thickness, and subgrade stiffness. There is a strong incentive to open many pavements to traffic as early as possible to allow construction traffic or traffic from the traveling public to use the pavement. However, if the pavement is opened to traffic too early, cracking may occur that may compromise the service life of the pavement. The purpose of this paper is two-fold: (1) to examine the current opening strength requirements for concrete pavements (typically a flexural strength from beams, f(r)) and (2) to propose a criterion based on the time-dependent changes of sigma(I)/f(r), which accounts for pavement thickness and subgrade stiffness without adding unnecessary risk for premature cracking. An accelerated pavement testing (APT) facility was used to test concrete pavements that are opened to traffic at an early age to provide data that can be compared with an analytical model to determine the effective sigma(I)/f(r), based on the relevant features of the concrete pavement, the subgrade, and the traffic load. It is anticipated that this type of opening criteria can help the decision makers in two ways: (1) it can open pavement sections earlier thereby reducing construction time and (2) it may help to minimize the use of materials with overly accelerated strength gain that are suspected to be more susceptible to develop damage at early ages than materials that gain strength more slowly. (C) 2015 Elsevier Ltd. All rights reserved.  
  Address [Antico, F. C.; De la Varga, I.; Esmaeeli, H. S.; Zavattieri, P. D.; Weiss, W. J.] Purdue Univ, Lyles Sch Civil Engn, W Lafayette, IN 47907 USA, Email: zavattie@purdue.edu;  
  Corporate Author Thesis  
  Publisher (up) Elsevier Sci Ltd Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0950-0618 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000361402700010 Approved no  
  Call Number UAI @ eduardo.moreno @ Serial 750  
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