Table 2 Selection of aggregate size for choker course
Project Location | Denver, Colorado, USA | Robbinsdale, MN, USA | Calgary, AB, Canada | Long Beach, CA, USA | |
|---|---|---|---|---|---|
Year of Construction | 2008 | 2009/2010 | 2011 | 2019 | |
Application | Parking Lot | Low-volume residential Intersections | Drive Lane | Parking Lot | |
Pavement Structure | 6.4 cm PA | 10.2 cm PA | 8.0 cm PA | 20 cm PA | |
5.1 cm Choker (AASHTO No.67) | 5.1 cm Choker (12.5 mm Crushed Stone) | 7.0 cm Choker (12.5 mm gravel) | 5 cm Choker (ASTM No.8) | ||
17.8 cm Stone Reservoir (No.3 Aggregate) | 30.5 cm Stone Reservoir (38.1 mm −63.5 mm Granitic Stone) | 50 cm Stone Reservoir (63 cm Gravel) | 50 cm Stone Reservoir (ASTM No.2) | ||
2.5 cm Sand Cushion | |||||
15.2 cm filter layer (ASTM C-33 Sand) | |||||
Geotextile fabric & Impermeable plastic liner | Geotextile fabric | Geotextile fabric | Geotextile fabric | ||
Subgrade Soil | No infiltration to subgrade | Sand (41st Ave. North) | Clay (27th Ave. North) | Low Infiltration Soil (0.58 mm/h) | Lean Clay to Clayey Sand |
Resources | Piza and Eisel [46] | Wenck Associates [64] | Huang [26] | Saadeh et al. [51] | |