USFS - Route 1 Road Repair - V2.

892 BITUMINOUS PRODUCTS 1 892 BITUMINOUS PRODUCTS (5/97) 1. ASPHALT CEMENTS Asphalt cement shall meet the requirements of AASHTO M 20 for penetration graded asphalt cement and to AASHTO M 226 for viscosity graded asphalt cement. 2. LIQUID ASPHALTS Liquid asphalts shall meet the requirements of the following specifications: Rapid Curing Liquid Asphalts AASHTO M 81 Medium Curing Liquid Asphalts AASHTO M 82 Slow Curing Liquid Asphalts AASHTO M 141 3. EMULSIFIED ASPHALTS Emulsified asphalts shall meet the requirements of the following specification: Emulsified Asphalt (Anionic) AASHTO M 140 (ASTM D Emulsified Asphalt (Cationic) AASHTO M 208* (ASTM D 2397) 4. BITUMINOUS DUST Bituminous dust palliatives shall meet the requirements listed in Table 892.06 5. CERTIFICATE OF COMPLIANCE a. In accordance with the requirements of Contract , the following format is established. Consignee ____________________ Designation ___________________ Contract Number _______________ Date _________________________ Identification (Truck No., Car No., Etc.) _________________________________ Type and Grade _____________ With Additive (%, brand) __________ Loading Temperature _________ Net Weight _____________________ -- 1 of 7 -- 892 BITUMINOUS PRODUCTS 2 Net Gallons _________________ b. The shipment of bituminous material identified above and covered by the bill of lading complies with Government Standard Specification as modified by Special Project Specifications applicable to this project. Producer ___________________ Signed _________________________ (Producer’s Representative) 6. APPLICATION TEMPERATURES Bituminous materials shall be applied within the temperature ranges indicated in Table 892.06. TABLE 892.06 - Application Temperatures Application Temperature Range # (Degrees F) Type & Grade of Material Spray Min./Max Mix Min./Max. RT 1-2-3 60-130 60-130 RT 4-5-6 85-150 85-150 RT 7-8-9 150-225 50-225 RT 10-11-12 175-250 175-250 RTCB 10-11-12 60-120 60-120 RC-MC-SC 70 105-185 90-155 RC-MC-SC 250 140-225 125-200 RC-MC-SC 800 175-265 160-225 RC-MC-SC 3000 215-290 200-260 DO-1-2-3 80-125 DO-4 80-175 Emulsified Asphalts: RS-1, SS1, SS-1H, & CRS-1, CSS-1, CSS-1H 75-130 70-160 RS-2, MS-2, CR-2, & CMS-2S, CMS-2 110-160 70-160 DO-6-7-8 50-140 Asphalt Cement (All Grades) 400 Max. 250-325 -- 2 of 7 -- 892 BITUMINOUS PRODUCTS 3 As required to achieve viscosity of 75-150 seconds. Saybolt-Furol or as required to achieve a Kinematic viscosity of 150-300 centistrokes. 7. EQUIPMENT The Contractor shall provide equipment for heating and applying the bituminous material. The bituminous distributor shall be self-powered and mounted on pneumatic tires. It shall be equipped with a pump and a circulating spray bar. The unit shall include a tachometer, pressure gauges, accurate volume measuring devices such as a visual volume dial or gauge calibrated to the tank, and a tank thermometer. All equipment shall be standard, commercial types, of proven performance. 8. WEATHER LIMITATIONS Bituminous dust palliative treatment shall be applied only when the surface to be treated contains sufficient moisture to get uniform dispersion of the dust palliative when the road surface and atmospheric temperature are 50 degrees F or more and rising, or above 60 degrees F if falling; and when the weather is not foggy, rainy, or stormy. -- 3 of 7 -- 893 AGGREGATE 1 893 AGGREGATE (5/97) 1. GRADATIONS a. Gradations for aggregates are included in Special Project Specifications for contracts where the aggregates are not provided by the Government. b. The inclusion of aggregate gradations does not constitute a warranty by the Government that commercial sources in the area are producing the gradation indicated. Aggregates commercially produced to meet State or County gradations and specifications for similar materials will be considered an equal alternate to the gradation in the contract provided the following quality requirements are met. Contractor shall provide testing and certification of supplied materials. 2. AGGREGATE FOR BITUMINOUS PLANT-MIX a. Coarse Aggregate - Coarse aggregate (retained on the No. 8 sieve) shall be crushed stone or crushed or natural gravel and shall conform to the quality requirements of AASHTO M 63. Gradation shall conform to the provisions of the Special Project Specifications. b. Fine Aggregate - Fine aggregate (passing the No. 8 sieve) shall be manufactured and conform to the quality requirements of AASHTO M 29 (ASTM D 1073). It shall be of such a gradation that when combined with the other required aggregate fractions in the proper proportion, the resultant mixture will meet the gradation required. 3. AGGREGATE FOR BITUMINOUS ROAD MIX a. Aggregates for bituminous road mix shall be crushed stone, or crushed or natural gravel which meets the quality requirements of AASHTO M 62 or M 63 for the specified gradation, except the sodium sulfate soundness loss shall not exceed 9 percent. The swell test will not be required. b. Gradation shall be as shown in the Special Project Specifications. When crushed gravel is used, not less than 50 percent by weight of the particles retained on the No. 4 sieve shall have at least one fractured face. 4. AGGREGATE FOR SPOT SURFACING a. Aggregates for spot surfacing shall be crushed stone, crushed slag, or crushed or natural gravel which conforms to the quality requirements of AASHTO M 147, or as specified in the Special Project Specifications, except as noted below: The requirements of M 147 shall apply, except that the liquid limit shall not exceed 35 and the plasticity index shall be not be less than 4 nor more than 9. -- 4 of 7 -- 893 AGGREGATE 2 b. Aggregate gradation shall conform to the provisions of the Special Project Specifications and AASHTO M 147. c. When crushed gravel is used, not less than 50 percent by weight of the particles retained on the No. 4 sieve shall have at least one fractured face. d. Gradations of each designated size of aggregates shall be obtained by crushing, sc…