Concrete thrust blocks are primarily used to achieve what purpose?

Concrete thrust blocks play a crucial role in preventing the opening of joints within the piping system under pressure. They provide the necessary resistance against the forces exerted by pressurized fluids flowing through the pipes. When water or any other liquid travels at high velocities, it generates significant internal forces, especially at bends, tees, or fittings. Without proper anchoring, these forces can cause pipe misalignment, joint separation, and ultimately failure of the system.

By using thrust blocks, the side forces are effectively distributed and managed, ensuring that the joints remain sealed and intact. This is particularly important in maintaining the integrity of water distribution systems, which rely on tightly fitted joints to function correctly and prevent leaks or potential backflow that could contaminate potable water supplies. Therefore, the primary purpose of concrete thrust blocks is to keep joints from opening under operational conditions, ensuring system reliability and longevity.