A workability test for slip formed concrete pavements

Evaluating the workability of concrete pavements prior to paving can be challenging. In this paper a novel test was developed using a simplistic and economic approach to measure the response of the concrete to vibration and the ability of the concrete to hold an edge. The variability of the test was evaluated and two comparisons were made to slip formed pavers. Also, a procedure was developed using the test for comparing the workability performance of different mixtures. The procedure was used to briefly investigate the impacts of aggregate gradation on the workability of slip formed paving mixtures.