Specifications Vol. II - Laserfiche WebLink

Home Browse Search

..., . ,., . comparing the length (longest dimension) to the thickness (shortest dimension) of the aggregate particles. 334-3.2.3.4 Sand Equivalent: When tested in accordance with AASHTO T 176, meet the sand equivalent requirements specified in AASHTO M323-04, Table 5. 334-3.2.4 Gyratory Compaction: Compact the design mixture in accordance with AASHTO T312-04. Use the number of gyrations as defined in AASHTO R35-04, Table 1 with the following exceptions: for Traffic Level C mixes, compact the mixture as specified for the Traffic Level of 0.3 x 106 to < 3 x 106 ESAL's; for Traffic Level E mixes, compact the mixture as specified for 10 x 106 to < 30 x 106 ESAL's. 334-3.2.5 Design Criteria: Meet the requirements for nominal maximum aggregate size as defined in AASHTO M323-04, as well as for relative density, VMA, VFA, and dust-to-binder ratio as specified in AASHTO M323-04, Table 6. Use a dust-to-binder ratio of 0.8 to 1.6 for coarse mixes. 334-3.2.6 Moisture Susceptibility: Test 4 inch [100 mm] specimens in accordance with FM 1- T 283. Provide a mixture having a retained tensile strength ratio of at least 0.80 and a minimum tensile strength (unconditioned) of 100 psi [690 kPa]. If necessary, add a liqu id anti-stri pping agent, which is on the Department's Qualified Products List or hydrated lime (meeting the requirements of 337-10.2) in order to meet these criteria. 334-3.2.7 Additional Information: In addition to the requirements listed above, provide the following information with each proposed mix design submitted for verification: 1. The design traffic level and the design number of gyrations (Ndesign). 2. The source and description of the materials to be used. 3. The DOT source number and the DOT product code of the aggregate components furnished from a DOT approved source. 4. The gradation and proportions of the raw materials as intended to be combined in the paving mixture. The gradation of the component materials shall be representative of the material at the time of use. Compensate for any change in aggregate gradation caused by handling and processing as necessary. 5. A single percentage of the combined mineral aggregate passing each specified sieve. Degradation of the aggregate due to processing (particularly material passing the No. 200 [75 pm] sieve) should be accounted for and identified. 6. The bulk specific gravity (Gsb) value for each individual aggregate and RAP component, as identified in the Department's aggregate control program. 7. A single percentage of asphalt binder by weight of total mix intended to be incorporated in the completed mixture, shown to the nearest 0.1 percent. 8. A target temperature at which the mixture is to be discharged from the plant and a target roadway temperature (per 330-6.3). Do not exceed a target temperature of 3300F [1650C] for modified asphalts and 3150F [1570Cl for unmodified asphalts. 9. Provide the physical properties achieved at four different asphalt binder contents. One of which shall be at the optimum asphalt content, and must conform to all specified physical requirements. 10. The name of the CTQP Qualified Mix Designer. 11. The ignition oven calibration factor. ,.., . r"l . ..., . ,., . .., . I' . ,., . ,., . r"1 . .., . ~ . ,., . ,., . .., . ...... . ,..., . ..... 09/09 01000-57 03-4122.F .