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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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Section 409Aggregate Grading (1)(2)and Sequence ofOperationsFirst Course )Apply asphalt material(gal/yd²)Table 409-3Approximate Quantities of Material forMultiple-Course Surface Treatment(Using Emulsified Asphalt)Treatment DesignationE-19 E-27 E-33 E-38 E-610.450.350.450.500.40Spread aggregate (lb/yd²)Grading DGrading CGrading BGrading A2530364070Second Course )Apply asphalt material(gal/yd²)0.250.250.250.250.45Spread aggregate (lb/yd²)Grading EGrading D1010162020Third Course )Apply asphalt material(gal/yd²)0.250.250.250.25Spread aggregate (lb/yd²)Grading E1081012Fourth Course )Apply asphalt material(gal/yd²)0.25Spread aggregate (lb/yd²) (3)Grading FTOTALS )Asphalt material (gal/yd²)Aggregate (lb/yd²)0.70350.85500.95601.007081.35110(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.292

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