Computer Based Guidelines For Concrete Pavements PDF Download

This report documents enhancements incorporated in the (HIgh PERformance PAVing) HIPERPAV® II software. Enhancements made within this project include the addition of two major modules: a module to predict the performance of jointed plain concrete pavement (JPCP) as affected by early-age factors, and a module to predict the early-age behavior (first 72 hours) and early life (up to 1 year) of continuously reinforced concrete pavement (CRCP). Two additional Federal Highway Administration (FHWA) studies were also incorporated: one that predicts dowel bearing stresses as a function of environmental loading during the early age, and a module for optimization of concrete paving mixes as a function of 3-day strength, 28-day strength, and cost. Additional functionality to the software was also incorporated by reviewing and prioritizing the feedback provided by users of the first generation of the software, HIPERPAV I. To accomplish the above, an extensive literature search was conducted in search of mechanistic and mechanistic-empirical models that could be used for this purpose. A system approach was followed for incorporating additional developments in the software following the same methodology employed during the development of the original HIPERPAV I software. Evaluation of the enhancements was accomplished with the help of a Technical Expert Panel (TEP). Likewise, validation of the model predictions was accomplished by employing existing databases and investigation of pavements during construction and in service. This report summarizes the work conducted to enhance the HIPERPAV concrete pavement design guidelines. This is the first volume in a series of three volumes that document the different tasks carried out in accomplishing the objectives for this project.