This study is part of the FHWA sponsored Special Project 202, "Break and Seat of Jointed Reinforced Concrete Pavement" (SP-202). In addition to Kentucky, West Virginia, Ohio, and Louisiana are also participating in the project. The projects were constructed under the experimental design defined in the FHWA Document "Special Project 202 Technical Resource Forum", June 6 and 7, 1989. Breaking patterns of 6, 18, and 30 inches, along with a control section which was not broken were used in each of the participating states.
The only major problem which occurred during construction occurred in the inside lane of the 6-inch test section. In this section, settlement of the broken slab was observed, causing the roller to sink into the underlying dense graded aggregate and subgrade. Subsequently, an area approximately 100 feet long was excavated and backfilled with large stone and full depth asphaltic concrete. The remainder of the construction process and installation of the monitoring gauges and access boxes went very well.
The gauges are working; i.e., horizontal movement is being detected during the observation periods. The data currently are limited due to the long-term nature of the project. No conclusions on the relative performance of each test section can be made. Once more data become available during the upcoming evaluation periods, relative performance between each section will be evaluated.
Digital Object Identifier
Graves, R. Clark and Allen, David L., "Construction Report FHWA Special Project 202, Break and Seat of Jointed Reinforced Concrete Pavement" (1993). Kentucky Transportation Center Research Report. 567.