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ABSTRACT
Jointed concrete pavements (JCP) develop transverse cracks as the drying and temperature-related volume changes of the PCC slab are resisted by the friction with the foundation layers. These transverse cracks degrade over time because of traffic and loss of shear capacity. This rapid deterioration triggers unscheduled maintenance and reduced performance lives. This paper synthesizes the impact of aggregate type on the load transfer potential of transverse cracks in JCPs. The ongoing work involves the collection and analysis of deflection data from 49 field sites. Based on the field investigation it can be concluded that jointed concrete slabs constructed using the natural aggregate products provided better crack deterioration performance than did concrete slabs constructed using the manufactured aggregate when all other variables were held constant.