Which statement about GCL installation is true?

Which statement about GCL installation is true?

• A. They offer ease of installation.
• B. They require no surface preparation.
• C. They are never suitable for use on slopes.
• D. They must be installed with asphalt.

Answer: (A)

Geosynthetic clay liners are roll‑type barriers designed for quick deployment, because the bentonite is already incorporated and they can be unrolled and overlapped without the extensive on‑site conditioning required for traditional clay liners. This makes installation comparatively faster and simpler, since crews can lay them out over the prepared surface with standard equipment and fewer material handling steps. However, they still need proper surface preparation—sharp objects removed, a smooth, dry, and clean base, and correct seam overlap and sealing—to ensure good contact and liner integrity. They can be used on slopes if installed correctly, so saying they’re never suitable for slopes isn’t accurate. They’re not installed with asphalt; instead, they’re typically placed and then covered with a protective layer or geomembrane. So the statement that they offer ease of installation best captures their practical advantage.

Geosynthetic clay liners are roll‑type barriers designed for quick deployment, because the bentonite is already incorporated and they can be unrolled and overlapped without the extensive on‑site conditioning required for traditional clay liners. This makes installation comparatively faster and simpler, since crews can lay them out over the prepared surface with standard equipment and fewer material handling steps. However, they still need proper surface preparation—sharp objects removed, a smooth, dry, and clean base, and correct seam overlap and sealing—to ensure good contact and liner integrity. They can be used on slopes if installed correctly, so saying they’re never suitable for slopes isn’t accurate. They’re not installed with asphalt; instead, they’re typically placed and then covered with a protective layer or geomembrane. So the statement that they offer ease of installation best captures their practical advantage.