CORRELATION OF QUALITY-CONTROL DATA AND PERFORMANCE OF PCC PAVEMENTS

This report summarizes the results of a study of the interrelationships between quality indicators and performance of portland cement concrete pavements. Historical and construction data relative to selected quality variables were collected for 104 concrete pavement projects in five States. These projects were then subjected to a pavement condition evaluation in order to establish the current level of performance. A number of statistical analyses were performed to establish relationships between the performance rating and the auality indicator data, and 55 models were developed and tested. The types of performance and quality indicator data required to develop statistically-reliable relationships, the types of results that can be obtained from such analyses, and the impact of missing data on model development and reliability are illustrated. (FHWA)