Lining Tunnels: Toughest Concreting Job?

Serial Information: Civil Engineering—ASCE, 1983, Vol. 53, Issue 11, Pg. 60-63


Document Type: Feature article

Abstract:

Concrete linings for water supply tunnels must resist sulphate and other chemical attack, not contribute pollutants to the water it is carrying, and not leak for its design life, which may be a century. Workability is important in lining tunnels. Two projects are presented in which these problems are solved, using natural pozzolan and a water reducing agent plus strict supervision during each step of the project.

Subject Headings: Water leakage and water loss | Tunnels | Linings | Water tunnels | Water supply | Water pollution | Project management

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