What pound of tarpaper is typically used for separation of thrust blocks?

The typical pound of tarpaper used for separation of thrust blocks is 45 lb. This specific weight provides the necessary durability and resistance to the forces exerted by the thrust blocks, which are crucial in preventing pipeline movement and ensuring the stability of the system. The 45 lb tarpaper effectively serves as a buffer material, helping to distribute the load and reduce the risk of soil erosion or damage to the surrounding infrastructure. The weight is a balance between providing adequate strength and maintaining practicality during installation, making it the standard choice in many waterworks applications. Thrust blocks are essential for redirecting the force of the water when it changes direction, so the material used to separate them must withstand these forces effectively.