<p><p><h2>Preferred Design Procedure</h2>No FHWA design guidance currently exists. Two design methods, pavement injection and deep injection, are presented here. Table 1 lists inputs and outputs for design and analysis procedures for this technology.</p></p>
<p><p><h2>References</h2>Abu Al-eis, K. and LaBarca, I.K. (2007). <em>Evaluation of the Uretek Method of Pavement Lifting.</em> WI-02-07, Wisconsin Department of Transportation.</p><p>Brunate, C.C. (2003). (To Uretek Worldwide Oy) <em>Method for Increasing the Bearing Capacity of Foundation Soils for Built Structures,</em> U. S. Patent 6,634,831 B2, October 21, 2003.</p><p>Crawley, A.B., Albritton, G.G., and Gatlin, G.R. (1996). <em>Evaluation of the Uretek Method Pavement Undersealing and Faulting Correction.</em> Interim Report, FHWA/MA-DOT-RD-96-113, Mississippi Department of Transportation Research Division.</p><p>Gaspard, K. and Morvant, M. (2004). <em>Assessment of the Uretek Process on Continuously Reinforced Concrete Pavement, Jointed Concrete Pavement, and Bridge Approach Slabs.</em> LTRC Project No. 05-1 TA, Louisiana Department of Transportation and Development, Louisiana Transportation Research Center.</p><p>Kantor J. (2004). <em>The Uretek Method Drives More</em><em> Effective Road and Highway Maintenance.</em> URETEK USA, Tomball, TX. NCDOT (2008). Contract Proposal to Perform pavement Repairs for Asphalt and Concrete Roads and Bridges Upon Request – Special Provision for HDPF(High Density Polyurethane Foam) Processes, Department of Transportation Division of Highways, State of North Carolina</p><p>URETEK (2004). <em>The Uretek Deep Injection Process (UDI) for Roadways and Building Structures.</em> URETEK USA, Tomball, TX.</p><p>URETEK (2005). <em>The Uretek Method for Roadways and Transportation Assets.</em> URETEK USA, Tomball, TX</p><p> </p></p>