<p><p><h2>Summary of Example Specifications</h2>Summaries for each specification are provided below. The example specifications are included in this document after the summaries.<br><div class="grayed-title subsection"><strong>Specification Name/Number:</strong> Shallow Soil Mixing Construction</div><strong>Reference(s):<br></strong><em>GeoCon. <a href="http://www.geocon.net/resources-technicalspecifications.asp">http://www…; (July 24, 2014)</em></p><p>This specification is written for use with a large-diameter, crane-mounted mixing auger using a slurried binder. The specification is written primarily for environmental applications such as contaminant stabilization or fixation, but it does have some provisions for structural support. This is a performance specification: performance criteria are provided along with minimum equipment requirements. Quality control requirements include specific tests to be performed (measurements, penetration testing, UCS, etc.) and material certifications. The specification can be easily modified to include additional QC tests.<br>The specification requires a specialty contractor with significant shallow soil mixing experience, but it does not require proprietary equipment. The contractor must submit qualifications along with work and quality control plans. The contractor carries a majority of the responsibility.<br><div class="grayed-title subsection"><strong>Specification Name/Number:</strong> Guide Technical Specifications: Soil Mixing</div><strong>Reference(s):<br></strong><em>GeoCon. Geo-Solutions, Inc. <a href="http://www.geo-solutions.com/samplespecs/soil-mixing.php">http://www.ge…; (July 24, 2014)</em></p><p>This specification is written for use with a large-diameter, crane-mounted mixing auger using a slurried binder. The specification can be adapted for soil improvement, structural support, or environmental applications. This is a performance specification: conformance to the specification requires achievement of prescribed performance criteria. Minimum equipment requirements are also provided. The specification calls for a thorough design submittal including a design mix program, environmental testing, sampling plan, laboratory grout and soil mix, and material sources. Quality control requirements are clearly outlined including testing type, frequency, and performance criteria.<br>The specification requires a specialty contractor and shallow soil mixing design expert, both with significant shallow mixing experience. The specification prescribes specific equipment requirements but does not require proprietary equipment or methods. As a performance<br>specification, a majority of the responsibility is placed on the contractor.<br><div class="grayed-title subsection"><strong>Specification Name/Number:</strong> Guide Technical Specifications: Soil Mixing</div><strong>Reference(s):<br></strong><em>Hayward Baker Inc. (2009). “Dry Soil Mixing.” Publication U14, Hayward Baker.</em></p><p>This specification is written as a general specification for the dry mixing method. This may be applied to shallow mixing or mass stabilization (or deep mixing). The specification can be adapted for a number of soil mixing applications. This is a performance approach specification with equipment and method requirements provided. The specification can be modified for sitespecific constraints and performance criteria. The specification allows acceptance criteria to be defined in three different ways: a combination of bearing capacity and settlement criteria, global stability criteria, or strength and geometry criteria. The specification includes an extensive execution of work section, which includes specific information on site monitoring, laboratory and field testing, installation, and quality control. Column penetration tests (KPS) are specified as the primary quality control test.<br>The specification calls for a pre-qualified contractor and describes specific contractor qualifications. Specific binders are included, which may exclude other economically or environmentally advantageous binder materials.</p></p>