Ensure that the aggregate, when combined at the job mix formula meets applicable Subsection 701.03.1 requirements. In addition to the applicable Subsection 701.03.1 requirements, ensure course aggregate absorption is 4 percent maximum as tested by MT 204. Aggregate Requirements. Furnish aggregate from sources meeting the applicable Section 106 requirements. Meet the aggregate gradation requirements shown in Table of Gradation Aggregate – Plant Mix Seal Course below as tested by MT 202. Aggregate must not contain adherent films of clay and other matter that prevents thorough coating and adhesion with bituminous material. Meet the following aggregate requirements at the job mix formula combined ratio: Coarse Aggregate (No. 4 (4.75 mm) and larger) Angularity (MT 217 or ASTM D-5821) 90% min. w/ 2 fractured Wear (MT 209 or AASHTO T-96) 30% max. Flat and Elongated Particles (ASTM D-4791) (5:1 Ratio; by mass; No. 4 (4.75 mm) and larger) 10% max. Fine Aggregate (No. 8 (2.36 mm) and smaller) Angularity (AASHTO T-304 Method A) 40% min. Sand Equivalent (MT 213 or AASHTO T-176) 45% min. If aggregate cannot meet the Sand Equivalent, meet the following: Volume Swell, untreated aggregates (MT-305) 10% max. Aggregate must be non-plastic (MT-208 or AASHTO T-89 & T-90) Asphalt Cement. Furnish performance asphalt binder (PGAB) meeting Section 702, Table 702-2 and the grade specified in the contract. Ensure PG 64-28, and PG 70-28 binders, after aging in the Rolling Thin Film Oven, and testing under AASHTO T 51 meet the following: Pull Rate: 5 cm/minute
Ensure that the aggregate, when combined at the job mix formula meets applicable Subsection 701.03.1 requirements. In addition to the applicable Subsection 701.03.1 requirements, ensure course aggregate absorption is 4 percent maximum as tested by MT 204. Aggregate Requirements. Furnish aggregate from sources meeting the applicable Section 106 requirements. Meet the aggregate gradation requirements shown in Table of Gradation – Aggregate Plant Mix Seal Course below as tested by MT 202. Aggregate must not contain adherent films of clay and other matter that prevents thorough coating and adhesion with bituminous material. Meet the following aggregate requirements at the job mix formula combined ratio: Coarse Aggregate (No. 4 (4.75 mm) and larger) Angularity (MT 217 or ASTM D-5821) 90% min. w/ 2 fractured Wear (MT 209 or AASHTO T-96) 30% max. Flat and Elongated Particles (ASTM D-4791) (5:1 Ratio; by mass; No. 4 (4.75 mm) and larger) 10% max. Fine Aggregate (No. 8 (2.36 mm) and smaller) Angularity (AASHTO T-304 Method A) 40% min. Sand Equivalent (MT 213 or AASHTO T-176) 45% min. If aggregate cannot meet the Sand Equivalent, meet the following: Volume Swell, untreated aggregates (MT-305) 10% max. Aggregate must be non-plastic (MT-208 or AASHTO T-89 & T-90) Asphalt Cement. Furnish performance asphalt binder (PGAB) meeting Section 702, Table 702-2 and the grade specified in the contract. Ensure PG 64-28, and PG 70-28 binders, after aging in the Rolling Thin Film Oven, and testing under AASHTO T 51 meet the following: Pull Rate: 5 cm/minute
special_provisions.docx