6x8x16 Ballast Block
- Weight: 55 lbs/ea
- Compressive Strength, Min P.S.I. (Average Gross Area)
- Average of 3 Units: 4,500
- Individual Units: 4,500
- Dry Cast Block with 3/4" Aggregate
- No dimension shall vary more than 3% over or under the specified dimension for any form of unit.
- ASTM C-139-05 except that the units shall conform to the details shown hereon and that their thickness shall not be less that 5".