<p><p><h2>Summary of Example Specifications</h2><div class="grayed-title subsection"><strong>Specification Name/Number:</strong> Specification for Geotextiles Used in Separation and Stabilization Applications</div><strong>Reference(s):<br></strong><em>AASHTO M288 (2006)<br>Holtz et. al. (2008)<br></em>This specification is easy to read, logically ordered, and provides clear instructions for the construction procedure. It gives clearly defined material properties and a list of approved geotextiles. This guide is not complete for all the aspects of pavement construction because contractor minimum qualifications, equipment needed, and QC/QA after construction are not covered in this document.</p><p>A certificate has to be provided by the contractor to the engineer stating the name of the manufacturer, product name, style number, chemical composition of the fibers, and other necessary information for geotextiles. The contractor has to submit the seam assembly description including seam type, stitch type, sewing thread, and stitch density. Manufacturer is responsible for quality of the geotextiles to meet the requirements of the specification. Hence, the risk is appropriately shared between the owner and the contractor.</p><p>Contractors can bid on the work without needing additional information as it includes the basis of maintenance, measurement and pavement and the specification allows substitution for proprietary products however the section for minimum contractor qualifications is lacking.</p><p>The construction method in this specification is well-defined and do not have overly elaborated or expensive construction requirements.</p><p>The specification contains all the detailed requirements necessary for QC/QA. For the material related quality control, it includes soil property requirements (CBR and permeability) and geosynthetic property requirements (chemical composition of the geosynthetic fiber, grab strength, puncture strength, apparent opening size etc). It also addresses the construction process such as placement and compaction of base course, placement of geosynthetics, and overlap or seam requirement etc. But, this specification does not contain the information of the some performance criteria such as resilient modulus, rut measurement, surface curvature index (SCI), and base damage index (BDI). It also does not provide the information regarding the emerging technologies like Intelligent compaction control, FWD and GPR testing for the QC/QA procedure.</p></p>