Humphreys County Airport serves 15 locally-based aircraft with nearly 120 operations per week. Because of limited development area, the T-Hangar had been built on a location with very poor sub-grade soil. They hired RoadWorx, Inc. to repair the failing pavement and correct the surface and sub-grade issues.
We chose FDR to rectify the situation, and used a mix design of 14 inches with 6% cement. Initially, the sub-grade was so soft, trucks were sinking into the ground. However, within hours of the process, the surface was stiffened enough to support all the equipment. The following morning the site was as hard as any stone base and was ready to accept new asphalt surface.
Although this was a relatively small project, it was a huge stepping stone for regional airports in Tennessee, as the first FAA approved project using the FDR process.