Interstate 17/Loop 101 Interchange
Glendale Sports Complex Parking Lot
Pulverize & Stabilize-Rainbow Valley Road, Goodyear
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Reclamation of Rainbow Valley Road, Goodyear
 This project was on 5 miles of chip sealed road which was badly deteriorated with huge potholes. The borings from the engineer’s report showed poor subgrade support for the road.
The design called for 4” of asphalt on 12” of ABC. As an economical alternative it was proposed to pulverize the existing roadway and mix cement into the base material instead of the 12” of ABC. A mix design was done and it was determined that 4% cement 8” deep would work.
Asphalt Busters pulverized the entire 5 miles of road. Cement was then spread at 4%, injected with water and mixed 8” deep.
As the contractor was paving over the stabilized subgrade, a huge rainstorm moved in dropping a massive amount of water flooding the entire area. Water ran down the sides of the road and then across the cement-treated subgrade. Many areas of the road were under water. The next day upon inspecting the road it was obvious the cement held up. There was no damage to the subgrade. The project could continue on schedule. If ABC had been used, the water would have penetrated to the subgrade and the project would have been shut down for weeks and taken thousands of dollars to repair the damage and dry out the subgrade.
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