iSeal
  1. AAR

  2. in.
  3. %
  4. lbs/ft3
  5. %
  6. EAR

  7. %
  8. %

Median Particle Size

Enter the median particle size by typing in values. Typical values of selected aggregates used in Indiana are provided in the table below.

Aggregate Type Median Particle Size
No.11 0.274
No.12 0.159
SC 16 0.243

Flakiness Index

Enter the Flakiness Index by typing in values in the box.

Loose Unit Weight

Enter loose unit weight by typing in values in the box. ASTM C29 covers the determination of the loose unit weight of coarse aggregates.

Dry Bulk Specific Gravity

Enter the bulk specific gravity by typing in values in the box. ASTM C127 covers the determination of the specific gravity of coarse aggregates.

Wastage Factor

Enter the wastage factor by typing in values in the box. The factor accounts for the amount of aggregates being dislocated by passing vehicles. A typical value is 10 %.

Equipment Correction Factor

Enter the equipment correction factor by typing in values in the box. The factor accounts for the discrepancy occurring between designed rate and applied rate in the field. Finding from the study SPR-3087: JTRP/SPR-3087: Performance Evaluation of Seal Coat Materials and Designs recommend using the factor. It should be noted that the equipment factor varies by equipments used, thus limited application exits within the factor.

Traffic Factor

Enter the traffic factor from one of five categories corresponding to the average daily traffic for road segments on which the seal coat will be applied.

Average Daily Traffic Traffic Factor
Under 100 0.85
100 to 500 0.75
500 to 1000 0.70
1000 to 2000 0.65
Over 2000 0.60

Surface Correction Factor

Enter the surface correction factor from one of five categories corresponding to the surface condition of road segments on which the seal coat will be applied.

Surface Condition Surface Correction Factor
Black, flushed asphalt -0.03
Smooth, non-porous 0
Slightly porous, oxidized 0.03
Slightly pocked, porous, oxidized 0.06
Badly pocked, porous, oxidized 0.09

Absorption

Enter the water absorption of aggregates used for the seal coat application. ASTM C127 covers determination of water absorption of coarse aggregate.

Asphalt Contents of Emulsion

Enter the asphalt content of the emulsion by typing in values. Typical values of selected emulsions used in Indiana are provided in the table below.

Emulsion Type Asphalt Content
RS-2 68
AE-90 68
AE-90S 65
HFRS-2 68
  1. AAR :
    lbs/yd2
  2. EAR :
    gal/yd2