Precast concrete is a product used in construction and is made through molding (casting). The process involves the use of a reusable mold, and the cast formed is treated in a controlled environment and transported in special conditions to the construction site. The treatment area is closely monitored to ensure that it is appropriate, and the quality is maintained. Precast manufacturing plants are heavily regulated by construction bodies in all nations, as their demand is increasing. There are different types of precast concretes depending on the intended use, size, function, and cost. They are used in building free-standing walls, landscaping, security walls, soundproofing, water and sewerage pipes, and tunnels.