Natural pozzolan sources
Updated June 10, 2024
| Product Name | Product Company | Product Location | Class | Specific Gravity | MnDOT Standard Abbreviation |
|---|---|---|---|---|---|
| NP100W | 3M Company | Wausau, WI | N | 2.70 | 3MNP100W |
| Hess Pumice | Hess Pumice Products, Inc. | Malad, ID | N | 2.37 | HPPMAID |