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This document summarizes a field study evaluating the rehabilitation of a jointed concrete pavement in Pennsylvania using injected high-density polyurethane foam and dowel bar retrofitting. The pavement exhibited premature cracking and faulting. A 9.7 km section was rehabilitated by injecting foam into the underlying open-graded stone layer to improve support and installing dowels at cracks. A 160 m section used cementitious grout for comparison. Laboratory testing characterized the properties of open-grade

Author

Fernão Dias

Language

EN