When is damage to liners most likely to occur?

When is damage to liners most likely to occur?

• A. During the installation of cover material
• B. While performing quality tests
• C. During placement of sand or granular drainage materials
• D. When the membranes are seamed together

Answer: (C)

Damage to liners is most likely to occur during the placement of sand or granular drainage materials because this process involves heavy machinery and the movement of potentially abrasive materials which can come into contact with the liner. The weight and pressure from equipment, combined with the rough texture of the materials being placed, increase the risk for punctures or tears in the liner. While the other scenarios could potentially cause damage, they are generally less likely to result in significant harm to the liner. For instance, during installation of cover material, care is usually taken to avoid damaging the underlying liner. Quality tests are typically performed on the liner without heavy machinery directly on top of it, further reducing the risk of damage. Seaming the membranes together involves careful handling to secure integrity and minimize risks.

Damage to liners is most likely to occur during the placement of sand or granular drainage materials because this process involves heavy machinery and the movement of potentially abrasive materials which can come into contact with the liner. The weight and pressure from equipment, combined with the rough texture of the materials being placed, increase the risk for punctures or tears in the liner.

While the other scenarios could potentially cause damage, they are generally less likely to result in significant harm to the liner. For instance, during installation of cover material, care is usually taken to avoid damaging the underlying liner. Quality tests are typically performed on the liner without heavy machinery directly on top of it, further reducing the risk of damage. Seaming the membranes together involves careful handling to secure integrity and minimize risks.