Gravel is a loose aggregation of rock fragments. Gravel is an important commercial product, with a number of applications.
Gravel is a loose aggregation of rock fragments. Gravel is an important commercial product, with a number of applications.
Gravel is used to support the filter sand and should have similar characteristics.
Technical Characteristics
| Application | Features |
|---|---|
| Potable Water | good hydraulic characteristics (permeable) |
| Surface Water | controlled sizing |
| Tertiary Treatment of El¬uent | precise product |
| Process Waters | simple chemical formula |
| Swimming Pool Water | hard and durable |
| brewing, paper processing | Hard and chemically inert |
| Biological and Nitri¬cation Support Media | high melting point |