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<br />ATTACHMENT 1 <br />PROTOCOL FOR BENCH-SCALE TESTING (FREEZE-THAV~ OF SOIL LINER FILL FOR <br />PHASE II OF CRESSON PROTECT. <br />• Samples of 1996 Soil Liner Fill and Ironclad Soil Liner Fill will be tested. <br />• The Soil Liner Fill material will be characterized by grain size distribution and Atterberg <br />limits. <br />• Standard Proctor will be performed to identify maximum dry density and optimum water <br />content. <br />• Samples will be compacted into molds, one-foot in length. The ends will be covered to <br />control desiccation. <br />• Samples will be frozen in a freezer set near 20°F. "Frozen" will be achieved when the <br />sample is 32°F or lower, and a <_32°F temperature is maintained for twelve hours. The <br />samples will then be removed to room temperature until the sample has risen to at least 35°F. <br />• Permeability tests will be conducted after five cycles for all Soil Liner Fill materials <br />undergoing the testing. <br />• Comparison will be made between the Ironclad Soil Liner Fill and the 1996 Soil Liner Fill <br />to ascertain whether any substantial and detrimental increase in permeability is demonstrated. <br />