Evaluation of prestress losses in an innovative prestressed precast pavement system

Abstract

and most recently Charleston, Missouri are paving the way for the use of prestressed precast concrete pavement. The use of prestressed precast concrete pavement for the replacement of damaged roadways gives contractors and designers significant advantage by decreasing construction time, improving pavement performance, and mitigating user cost. The project in Charleston, Missouri, funded by the FHWA and MoDOT, is the focus of this thesis. A total of 101 panels were cast and seven were instrumented to monitor temperature and strain. The objectives set forth were to understand important properties of the materials used, study losses due to creep and shrinkage of precast pavement panels, and develop pre and post-tension loss prediction models and compare them to actual values measured in the pavement. Concurrent works by Cody Dailey and Grant Luckenbill examine early age performance of the precast panels and analyze strains relating to daily thermal gradients, seasonal trends, and traffic.

Evaluation of Precast Panels for Airfield Pavement Repair. Phase 1: System Optimization and Test Section Construction

“…Numerous highway agencies have investigated the use of precast panels for pavement repair since 2000 including: Illinois Tollway Authority, New Jersey Turnpike, and New York State Thruway Authority. State DOTs included California, Iowa, New Jersey, New York, Colorado, Delaware, Florida, Hawaii, Indiana, Michigan, Minnesota, Missouri, Texas, and Virginia (Tayabji et al 2009;Davis 2006). In 2006, the AASHTO promoted technology transfer activities related to precast PCC systems for a variety of highway paving and repair activities.…”

“…Several pilot factory-produced modular road surface studies were conducted in the Netherlands during 2004-2006(van Dommelen et al 2004. One precast panel concept investigated was a modular pavement structure called ModieSlab.…”