2004 Volume 45 Issue 4 Pages 222-228
It is difficult to completely prevent water from leaking into underground concrete structures when using normal waterproof sheeting. As the sheeting is not chemically bonded to the structures, underground water penetrates cracks through in the sheeting. We have developed a type of waterproof sheeting that chemically adheres to structural concrete after it is cast, and confirmed its performance through laboratory tests. This paper introduces the newly developed waterproof sheeting and test results.