<p><p><strong>Reference(s):</strong></p><p><em>Bhattacharya and Pandey (1984)<br>Liang (1992)<br>Crockford et al. (1993)<br>Medjo Eko and Riskowski (1994)<br>Consoli et al. (1998 b)<br>Puppala and mesunda (2000)<br>Kaniraj and Havanagi (2001)<br>Tingle et al. (2002)<br>Consoli et al. (2003)<br>Khattak and Alrashidi (2006)<br>Kumar et al. (2006)<br>Kumar et al. (2007)<br>Rafalko et al. (2007)<br>Tang et al. (2007)<br>Kalantari and Huat (2008)<br>Kumar et al. (2008)<br>Newman and White (2008)<br>Sivakumar Babu and Vasudevan (2008)</em></p><p><strong>Method Summary</strong></p><p>Laboratory tests of the construction materials and fiber-soil mix are required to ensure that the raw materials meet the quality and the mixing and curing processes are adequate.</p><p>Reinforcing fibers’ nominal diameter, length, specific gravity, tensile strength, and Young’s modulus are measured to ensure the use of quality material in the mix.</p><p>The compressive strength, shear strength, internal friction angle, cohesion, stiffness, flexural strength, ductility, toughness, impact strength, fracture resistance, resilient modulus, and CBR of the fiber-reinforced mix are measured as per the application of fiber reinforcement mix to ensure that the proper mixing and curing have been followed during the construction.</p><p>Tests for reinforced subgrade and base course properties include CBR test (ASTMD1833), modified Proctor test (ASTM D1557), triaxial tests, direct shear tests (ASTM D3080), and unconfined compression tests.</p><p><strong><em> </em></strong><strong>Accuracy and Precision</strong></p><p>Accuracy and precision depends upon the particular laboratory tests, but all tests are well established and accepted<em>.</em></p><p><strong> </strong><strong>Adequacy of Coverage</strong></p><p>Laboratory tests of the geosynthetic fibers are adequate and have a high coverage, while the adequacy of coverage of laboratory tests on soils and soil/fiber mixtures is dependent on the uniformity of the placed soils.</p><p><strong> </strong><strong>Implementation Requirements </strong></p><p>The implementation requirements vary for each particular laboratory test, however the tests are well established and straight-forward.</p></p>