Page 527879 BLOTTING SAND
879.1 Requirements
A.Sand for Prime: Sand for prime will meet the following requirements: Percent passing 3/8 inch sieve .............................................................................. 100 Percent passing #40 sieve .................................................................................... 0-60 Percent passing #200 sieve ............................................................................... 0-20.0 Plasticity Index ................................................................................................ 12 Max. B.Sand for Flush Seal and Sand for Fog Seal: Sand for flush seal and sand for fog seal will meet the following requirements: Percent passing 3/8 inch sieve .............................................................................. 100 Percent passing #8 sieve ...................................................................................... 0-95 Percent passing #40 sieve .................................................................................... 0-70 Percent passing #200 sieve ............................................................................... 0-12.0 Plasticity Index .................................................................................................. 6 Max. The sand will be free from dirt and vegetation. Crushing is not required. Blow sand is not considered satisfactory material. C.Sampling and Testing: Sampling .......................................................................................................... SD 201 Gradation ......................................................................................................... SD 202 Plasticity Index ................................................................................................. SD 207 Page 528880 AGGREGATES FOR ASPHALT CONCRETE
880.1 General Requirements
The material will conform to the specifications for the particular material required by the contract. The material will not contain dirt, clay balls, vegetation or organic debris, paper, metal, glass, and other foreign material. The particles will be free from coating with clay or dust which prevents thorough coating with asphalt.
880.2 Specific Requirements
A.Reclaimed Asphalt Pavement (RAP): RAP will conform to the requirements of Section 884. B.Mineral Aggregate: The mineral aggregate job mix formula, without the addition of hydrated lime, will conform to the requirements shown in Table 1. The single percentage aggregate gradation established in the job mix formula for Class D, E, and G asphalt concrete mixes will be within the limits in Table 1. The single percentage aggregate gradation established in the job mix formula for Class S asphalt concrete mixes will be the center of the gradation band in Table 1. The Class S gradation will include mineral fillers or other approved additives. Table 1 Class D Class E Class G Class SRequirementsType 1Type 2Type 1Type 2Type 1Type 2Type 1*1Type 2*1 Sieve Percent Passing 1 inch 100 100 100 3/4 inch 97-100 100 97-100 100 97-100 100 100 5/8 inch 97-100 100 1/2 inch 75-95 97-100 75-95 97-100 75-95 97-100 86-100 97-100 3/8 inch 66-80 80-100 #4 45-75 60-80 45-75 60-80 45-75 60-80 24-34 24-45 #8 30-55 40-60 30-55 40-60 30-55 40-60 10-20 10-22 #16 20-45 25-50 20-45 25-50 20-45 25-50 #40 10-30 15-35 10-30 15-35 10-30 15-35 #200 3.0-7.0 4.0-8.0 3.0-7.0 4.0-8.0 3.0-7.0 4.0-8.0 6.0-10.0 4.0-8.0 Other Properties Processing Required Crushed Crushed Crushed Crushed Fine Aggregate Angularity (min) 41.5 42.5 44.0 NA Sand Equivalent (min) 42 45 50 NA LA Abra. Loss, (max) 45% 40% 35% 40% +#4Absorption (max)*21.0% Sodium Sulfate Soundness (Maximum) +#4 sieve 15% 15% 12% 8% -#4 sieve 15% 15% 12% 8% Lightweight Particles (Maximum) +#4 sieve 4.5% 3.0% 1.0% 1.0% -#4 sieve 4.5% 3.0% 1.0% 1.0% Crushed Particles (Minimum) +#4 sieve 50% 1-CF 70% 2-CF 90% 2-CF 95% 2-CF *1Mineral aggregate will be produced from a ledge rock source. *2Will be evaluated at mix design by the Department’s Central Materials Laboratory.
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