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| Last Updated | 03/04/2022 06:31 AM |
| Project Title | Anthracite Coal and Silica Sand |
| Physical Address | View project details and contacts |
| City, State (County) | Fort Collins, CO 80521 (Larimer County) |
| Category(s) | Heavy and Highway |
| Sub-Category(s) | Aggregates |
| Contracting Method | Competitive Bids. |
| Project Status | Results |
| Bids Due | View project details and contacts |
| Estimated Value | |
| Plans Available from | |
| Owner | View project details and contacts |
| Architect | View project details and contacts |
| Description | Anthracite Coal: 1. Layer Depth: 30-inch plus or minus ½-inch, after placement and skimming. Provide 1-inch skimming allowance and 5 percent extra. 2. Effective Size: 0.95 mm plus or minus 0.05 mm. 3. Uniformity Coefficient: Less than or equal to 1.40. 4. Specific Gravity: Greater than or equal to 1.65. 5. Mohs’ Hardness: Not less than 2.7. 6. Acid Solubility: Less than 5 percent. 7. Visibly free of shale, clay, wood, and other extraneous debris. B. Silica Sand: 1. Layer Depth: 12-inch plus or minus ½-inch, after placement and skimming. Provide ½-inch skimming allowance and 5 percent extra. 2. Effective Size: 0.50 mm plus or minus 0.05 mm. 3. Uniformity Coefficient: Less than or equal to 1.40. 4. Specific Gravity: Greater than or equal to 2.6. 5. Mohs’ Hardness: Not less than 6. 6. Acid Solubility: Less than 5 percent. 7. Visibly free of shale, clay, wood, and other extraneous debris. |
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| Bidder's List | View project details and contacts | ||
| Prospective Bidders | View project details and contacts | ||
| Project Documents |
 Engineered Spec Sheet  Architectural Plans  Other Documents |
