<p><p><strong>Reference(s):</strong></p><p><em>Rogbeck et al. (2003)</em></p><p><strong>Method Summary</strong></p><p>The test is conducted in a laboratory. A soil nail is loaded in tension to determine strength. Opposing outward loads are applied using testing machines. The nail is loaded until failure or yielding. The test is a standard procedure that is simple to perform with the proper equipment.</p><p><strong>Accuracy and Precision</strong></p><p>This is a highly accurate and precise laboratory test.</p><p><strong>Adequacy of Coverage</strong></p><p>A small percentage of nails are tested. Results from tension-tested nails in the laboratory can be used to represent a batch of nails to be installed in the field.</p><p><strong>Implementation Requirements </strong></p><p>This is an inexpensive test on representative nails that can be conducted by someone with minimal training using the proper equipment.</p><p><strong>General Comments</strong></p><p>The tension test is a quality control measure that determines the ultimate tensile strength of a batch of nails by a destructive tensile test on a representative nail. Typically, it is required that the manufacturer provides certifications on the strength of the nail. For this reason, tension tests are an ancillary test typically performed as part of a more aggressive QC/QA program. Tension testing is applicable to performance and method approach specifications.</p></p>