This research pertains to development of very-high early-strength concrete, herein referred to as fast track concrete, for rapid repair of highway pavements. This project is a sequel to an earlier study.

The objective of the former project was to develop the base mix design for the fast track concrete, establish in-place field, monitoring procedures, and demonstrate the fast track technology in actual field applications. The scope of the earlier project was limited to a single cement brand and type.

The objective of the study presented here was to explore the capability of Portland cement types I and III in achieving fast track properties. In doing so the project involved development of fast track concrete with a number of different cement brands currently use in New Jersey.

The concrete developed in this project will be employed in full-depth repair of jointed concrete pavement slabs.