<p><p><div class="grayed-title subsection"><strong>Specification Name/Number:</strong> URETEK Deep Injection</div><strong>Reference(s):<br></strong><em>DI URETEK (2008)<br>Infrastructure URETEK (2008)</em></p><p>URETEK Deep Injection is a method specification. Some important items such as performance requirements and acceptance criteria should be added to the specification. The specification is a proprietary specification for both deep injection and subgrade stabilization. Because two applications are specified, the specification can be confusing in regards to construction methods and equipment requirements. The owner is responsible for marking construction locations and utilities prior to the contractor commencing work. The contractor will not be held liable for damage to any unmarked buried utilities buried utilities (DI URETEK 2008). Because URETEK material is still a proprietary material, few contractors can conduct this type of work. The specification sections include foam fill requirements, construction methods, equipment requirements, and QC/QA methods.<br><div class="grayed-title subsection"><strong>Specification Name/Number:</strong> Slab Stabilization</div><strong>Reference(s):<br></strong><em>City of Columbus (2001)<br>MO DOT (2009)<br>NC DOT (2008)<br>Ohio DOT (2007)<br>PennDOT (2010)<br>URETEK Method Specification (2008)</em></p><p>Several States have specifications for slab stabilization using injected light foam fill. Only PA specification is attached in the last section. Slab stabilization is a combined method/performance specification. Some important items to be added include performance requirements and acceptance criteria.</p><p>The specification is intended as a generic specification for stabilization subgrade. According to City of Columbus (2001), the contractor is responsible for any pavement blowout, excessive lifting, or uneven pavement that causes ponding as a result of the stabilization of the pavement. Damaged areas should be repaired to the satisfaction of the engineer by the contractor without any additional cost. Because URETEK material is still a proprietary material, few contractors can conduct this type of work. The specification has sections including foam fill requirements, construction methods, equipment requirements, and QC/QA methods.</p></p>