FP-96 English Version - Eastern Federal Lands Highway Division

Section 401401.06 Surface Preparation. Prepare the surface according to 303.07, 413,502, or 503 as applicable. Apply an asphalt tack coat to contact surfaces ofpavements, curbs, gutters, manholes, and other structures according toSection 412.401.07 Weather Limitations. Place hot asphalt concrete pavement on a dry,unfrozen surface when the air temperature in the shade is above 35 bF andrising and the temperature of the road surface in the shade conforms to Table401-6.Table 401-6Asphalt Concrete Mix Placement TemperatureCompacted Lift Thickness S < 2 in 2–3 in > 3 inRoad Surface Temperature bF Minimum Lay-Down Temperature (1) bF< 35(2) (2) (2)35 - 39.9(2) (2)28040 - 49.9(2)285 27550 - 59.9 295 280 27060 - 69.9 285 275 26570 - 79.9 280 270 26580 -89.9 270 265 260> 90 265 260 255(1) In no case shall the asphalt concrete mix be heated above the temperaturespecified in the approved mix design.(2) Paving not allowed.401.08 Asphalt Preparation. Uniformly heat the asphalt cement to providea continuous supply of the heated asphalt cement from storage to the mixer.Do not heat asphalt cement above 350 bF.If the job-mix formula requires a liquid heat stable antistrip additive, meter itinto the asphalt cement transfer lines at a bulk terminal or mixing plant. Injectthe additive for at least 80 percent of the transfer or mixing time to obtainuniformity.241