Roadbase Inspection Form

• Project Reference

• Project Name and Phase

• Date

  Date

• Contractor / Subcontractor

• Inspected by

• Subbase thickness

  Select CBR (%) 2 - 3 Thickness of Subgrade (mm) 275mm * A Geotextile is required CBR (%) 3 - 5 Thickness of Subgrade (mm) 225mm CBR (%) 5 - 7 Thickness of Subgrade (mm)175mm CBR 7 - 14 (%) Thickness of Subgrade (mm) 150mm CBR 15 + (%) Thickness of Subgrade (mm) 150mm

  • CBR (%) 2 - 3 Thickness of Subgrade (mm) 275mm * A Geotextile is required
  • CBR (%) 3 - 5 Thickness of Subgrade (mm) 225mm
  • CBR (%) 5 - 7 Thickness of Subgrade (mm)175mm
  • CBR 7 - 14 (%) Thickness of Subgrade (mm) 150mm
  • CBR 15 + (%) Thickness of Subgrade (mm) 150mm

• CBR Certificate

  Yes

  No

  N/A

• Kerb Race Installed

  Yes

  No

  N/A

• Gullies and Concrete cover

  Select Compliant Non-Compliant N/A

  • Compliant
  • Non-Compliant
  • N/A

Carriageway Surfacing Roadbase

• Carriageway Roadbase Surfacing

  Machine

  Hand Lay

• Material Depth

  Select 100mm 120mm 185mm Other Depth

  • 100mm
  • 120mm
  • 185mm
  • Other Depth

• Air Temperature (at or above 1 Degree's Celsius)

• Ground Temperature (At or below 2 Degree's Celsius)

• Wind Speed Table to be used in conjunction with air Temperatures

  

Material Specification

• DBM 20mm

• DBM 28mm

• DBM 32mm

• Other

Temperatures

• Wagon 1 Vehicle Reg, Temperature on arrival, Temp in Hopper, Temp before Rolling

• Wagon 2 Vehicle Reg, Temperature on arrival, Temp in hopper, Temp before Rolling

• Wagon 3 Vehicle Reg, Temperature on arrival, Temp in Hopper, Temp before Rolling

• Wagon 4 Vehicle Reg, Temperature on arrival, Temp in Hopper, Temp before Rolling

• Road Kerbs Installed

  Yes

  No

  N/A

Bitumen Paving Grade

• 40/50

• 70/100

• 100/150

• 160/220

• Other

Testing

• Rolling Straight Edge Compliant

  Yes

  No

  N/A

• 3 Metre Straight Edge Compliant

  Yes

  No

  N/A