Precast concrete retaining walls are used in both commercial and residential applications, and may include products such as sea walls, mechanically stabilized earth (MSE) panels, and modular block ...

Concrete blocks and cement blocks are preformed, manufactured concrete structures that are ready for on-site installation. They are manufactured, cast, and cured in factories or other production ...

The concave concrete structures were designed to pick up sound waves from enemy aircraft, making it possible to predict their flight trajectory, giving enough time for ground forces to be alerted ...