705.01 Select Borrow
668 asphalt, and other organic materials. Ensure the aggregate conforms to the gradation limits of Table 703:1 3. Table 703:13 Polymer Overlay Aggregate Sieve Size Percent Passing by Weight No. 4 (4.75mm) 100 No. 8 (2.36mm) 30-75 No. 16 (1.18mm) 0-5.0 No. 30 (600μm) 0-1.0
705.01 Materials
Provide select borrow in accordance with Table 705:1. Table 705:1 Select Borrow Requirements Group Classification a Group Index (Maximum Value) A-1 0 A-2-4 0 A-3 0 a Classify select borrow material in accordance with AASHTO M 145. Provide select borrow that passes a 3 in [75 mm] sieve and remove material from the right -of-way that does not reduce to a size 3 in [75 mm] or less. Ensure select borrow produced from rocks has a Slake Durability Index of at least 80. If the Contractor encounters a lens, layer , or stratum of unacceptable material in a borrow pit or roadway cut, the Department wil l allow the Contractor to combine the unacceptable material with acceptable material as long as the resulting uniform mixture meets the Contract requirements. Provide select borrow that is uniform in gradation and plastic properties. Unless otherwise requi red by the Contract, provide all materials for select borrow. Make preliminary investigations to locate and verify the proposed material source. Test select borrow in accordance with Table 705:2. LIME 706.03 669 Table 705:2 Select Borrow Testing Methods Test Item Method Sieve analysis AASHTO T 88 a Preparing samples AASHTO R 58 Liquid limit AASHTO T 89 Plastic limit and plasticity index AASHTO T 90 Slake durability ASTM D 4644 a Omit the Hydrometer Test SECTION 706 LIME
706.01 Hydrated Lime
Provide hydrated lime in accordance with AASHTO M 216, except, ensure the Available Lime Index, expressed as Ca(OH) 2, is at least 90.0 percent in accordance with ASTM C 25. The Department will not allow b y-product lime.
706.02 Quick Lime
Provide quick lime in accordance with AASHTO M 216, except, ensure the Available Lime Index, expressed as CaO, is at least 90.0 percent in accordance with ASTM C 25. The Department will not allow by -product lime.
706.03 Agricultural Limesto Ne
Provide high calcitic or dolomitic limestone for agricultural limestone that is free of toxic salts and other harmful matter. Test limestone in accordance with ASTM C 602. Ensure the Calcium Carbonate Equivalent is at least 80.0 percent. Ensure the gradation is in accordance with Table 706: 1. Table 706:1 Agricultural Limestone Gradation Sieve Size Percent Passing No. 4 [4.75 mm] 100 No. 8 [2.36 mm] 90 – 100 No. 60 [250 µm] 30 – 100 The Department will not allow by -product lime.