<p><p><figure id='attachment_2601' style='max-width:751px' class='caption aligncenter'><img class="wp-image-2601 size-full" src="https://www.geoinstitute.org/sites/default/files/geotech-tools-uploads/…; alt="Diagram showing Deep Injection Procedure." width="751" height="435" /><figcaption class='caption-text'> Deep Injection Procedure (URETEK (2004))</figcaption></figu
<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>
<p><p><strong>Reference(s):<br></strong><em>Abu Al-eis and LaBarca (2007)<br>Kantor (2004)<br>Gaspard (2004)<br>Uretek (2005)</em></p><p>The quality of polyurethane injected beneath continuously reinforced concrete pavement and bridge approach slabs is usually estimated using the profile data obtained by rod and level surveys, profile data from the working profiler, and curves that match the profile of the pavement depression (Abu Al-eis and LaBarca, 2007).
<p><p><strong>References:<br></strong><em>Crawley et al.
<p><p><strong>References:<br></strong><em>Christopher et al. (2010)<br>Vennapusa and White (2009)</em></p><p><strong>Method Summary</strong></p><p>Static plate load tests involve obtaining load-deflection curves to determine modulus of subgrade reaction, soil elastic modulus, or soil bearing capacity. The test is conducted by increasing a static load on the soil and recording the corresponding plate deflections.
![https://www.geoinstitute.org/sites/default/files/geotech-tools-uploads/…](https://www.geoinstitute.org/sites/default/files/geotech-tools-uploads/DIP.png"){kind=link}