What type of concrete structure is created on-site by pouring concrete into forms?

The type of concrete structure created on-site by pouring concrete into forms is known as cast-in-place. This method involves the construction of a framework or formwork, which is then filled with concrete that hardens on the spot, forming a monolithic structure. This technique allows for greater flexibility in design and adaptability to site-specific conditions, as the concrete is mixed and poured directly where it is needed.

Cast-in-place construction is commonly used for foundations, walls, and various structural elements within many types of buildings. Its major advantage lies in the ability to create complex shapes and integrate other building materials seamlessly, leading to a durable and cohesive structure. The curing and hardening process occurs right on-site, ensuring that the concrete achieves optimal strength suitable for the intended load-bearing tasks of the building.

Other types mentioned, such as precast, involve fabricating concrete elements off-site and transporting them to the construction location, which differs fundamentally from the in-situ process of cast-in-place. Modular construction focuses on assembling pre-made components or modules rather than pouring concrete on-site. Slip-forming is a specialized technique used for continuous vertical structures like silos or towers but still differs from the general practice of cast-in-place, which can apply to various structural elements.