Fast Track Paving May Offer Applications to Structuresby Gerald W. Chase, Iowa State Univ, United States,
John Lane, Iowa State Univ, United States,
Abstract: 'Fast Track' is a technique that permits portland cement concrete pavements to be opened to traffic in a day or less after they are poured. The method has been developed and used in the state of Iowa for municipalities, counties, and the state, as well as private owners, all of whom need to minimize the time that a roadway is denied to traffic. Through the proper selection of cement type, mix design, and curing conditions, it has been possible to achieve beam flexural strengths in excess of 400 psi in 12 hours. The Iowa DOT considers 350 psi the minimum flexural strength necessary to open a pavement to traffic. The Fast Track paving technique was first used on several demonstration projects in 1986. This paper discusses the development effort, mix design, strength development, pavement design, construction techniques, and pavement performance for several projects.
Subject Headings: Concrete pavements | Flexural strength | Pavements | Pavement design | Concrete beams | Materials processing | Traffic management | Structural strength | Iowa
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