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FP-96 English Version - Eastern Federal Lands Highway Division

FP-96 English Version - Eastern Federal Lands Highway Division

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Table 409-2Approximate Quantities of Material forMultiple-Course Surface Treatment(Using Cut-back Asphalt or Asphalt Cement)Aggregate Grading (1)(2)and Sequence ofOperationsFirst Course )Apply asphalt material(gal/yd ²)Treatment DesignationSection 409AT-19 AT-27 AT-33 AT-38 AT-610.220.250.150.300.20Spread aggregate (lb/yd²)Grading DGrading CGrading BGrading A2535405070Second Course )Apply asphalt material(gal/yd²)0.130.250.300.350.40Spread aggregate (lb/yd²)Grading EGrading DGrading C1015122020Third Course )Apply asphalt material(gal/yd²)0.150.20Spread aggregate (lb/yd²)Grading E812Fourth Course )Apply asphalt material(gal/yd²)0.20Spread aggregate (lb/yd²) (3)Grading FTOTALS )Asphalt material (gal/yd²)Aggregate (lb/yd²)0.35350.50500.60600.657081.00110(1) See Table 703-7 for aggregate gradations.(2) Aggregate masses are for aggregates having a bulk specific gravity of 2.65, as determinedby AASHTO T 84 and AASHTO T 85. Make proportionate corrections when the aggregatefurnished has a bulk specific gravity above 2.75 or below 2.55.(3) After final aggregate spread, apply additional cover aggregate, grading F, to all areaswith unabsorbed asphalt materials.291

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