| Coarse Aggregate: | Aggregates held on the #4 (4.76 mm) sieve. |
| Fine Aggregate: | Aggregates that pass the #4 (4.76 mm) sieve and are retained on the #200 (74 micron) sieve. |
| Gravel: | Granular material resulting from abrasion and natural disintegration of rock that is predominately held on the #4 (4.76 mm) sieve. |
| Sand: | Granular material resulting from abrasion and natural disintegration of rock that almost entirely passes the #4 (4.76 mm) sieve. |
| Bank Gravel: | Gravel found in natural deposits, usually more or less intermized with fine material, such as sand or clay, or combinations thereof; gravelly savd, clayey gravel, and sandy gravel indicate the varying proportions of the materials in the mixture. * Definition from ASTM D8 |
| Crushed Gravel: | The result of artificially crushing of gravel; almost all fragments have at least one face that resulted from fracture. |
| Crushed Stone: | The result of artifically crushing rocks and boulders; almost all faces result from the crushing operation. |
| Crushed Rock: | The result of artifically crushing all rock; all faces result from blasting or the crushing operation. |
| Blast-Furnace Slag: | The nonmetallic product (composed mainly of silicates and alumino-silicates of lime and other bases) that is formed in a molten state simultaneously with iron in a blast furnace. |
