Trap Rock/Diabase is an aggregate that provide superior friction properties. It assists in building Voids in Mineral Aggregate (VMA) and allows for increased binder replacement (FRAP/RAP/RAS) content.
Ontario (DSM Inventory # B22-072)
- HL-1 (5/8″ clear)
- DFC Fines
- Unwashed Manufactured Sand
- ¼” Chip
Michigan (MDOT Source # 95-10)
- Aggregate Wear Index – 306
- CS-1
- CS-2
- 25-A
- 29-A
- Washed manufactured sand
- Unwashed manufactured sand
Illinois (IDOT Source # 52352-02)
- CM-13
- CM-14
- CM-16
- FM-22
Ohio (ODOT Source #4144-01)
- ODOT #7
- ODOT #8
- ODOT #9
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