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• r <br /> 5 <br /> i <br /> N''Sr•ty, _ 'fit', �,� <br /> e I <br /> 44� <br /> Ati1 <br /> t <br /> FIGURE 2. - Wind tunnel. �. <br /> Y <br /> ffec- 2. Lignosulfonates--calcium, sodium, and ammonium lignosulfonates--were <br /> te- effective stabilizers in 2,400-pound-per-acre quantities costing about $130 <br /> order to $170 per acre dependent on the specific lignosulfonate used. <br /> r <br /> A <br /> cause 3. Compound SP-400, Soil Gard, and DCA-70 elastomeric polymers produced ;l <br /> ions wind- and water-resistant surfaces using respective quantities of 55, 90 , and <br /> SO gallons per acre costing about $130 per acre. All were exceptionally effec- <br /> tive on sandy tailings and produced satisfactory results on both acidic and <br /> ling alkaline tailings. <br /> cost- <br /> was 4. Cement and milk of lime additives were effective in stabilizing the <br /> • surface when applied at costs of about $190 per acre. <br /> only 5. Paracol TC 1842--a resin emulsion--was an effective stabilizer at <br /> costs of about $250 per acre. <br />