| Product | High Grade |
| Area of application | Special applications |
| Country | Switzerland |
| Location | Hettlingen |
| Year | 1989 |
| Floor size | 2.600 m2 |
| Underground conditions | No bedding |
| Additional steel reinforcement | No |
| Additional Information | Protection mortar |
www.contecfiber.com/en/references/reference-database/report/57-open-working-tunnel/