Pavements, Active
Design and Construction of Two-Lift Concrete Pavements for Pennsylvania
Two-lift concrete pavement construction, a technique that involves the placement of two wet-on-wet layers of concrete with different mixes, can balance the need for different materials in different depths of the concrete slab. This project will develop design and construction recommendations for two-lift concrete pavements for Pennsylvania conditions. This will involve testing appropriate concrete mixes for both top and bottom layers with a focus on the former’s high-performance needs and the latter’s economical and sustainable aspects. An experimental section will be evaluated, focusing on the challenges of working consecutively with two pavers and two concrete mixes. A comprehensive evaluation of the bonding conditions between the two layers will be performed and documented using non-destructive methods. The potential cost saving and reduction in carbon footprint will be evaluated.
