What type of concrete buildings are built on-site by pumping concrete into a form?

• A. Precast buildings
• B. Panelized buildings
• C. Monolithic buildings
• D. Post-tensioned buildings

Answer: (C)

The key idea here is how the concrete structure is formed on site. When concrete is pumped into a form at the building site to create the structure in one continuous operation, that is called monolithic concrete construction. The goal is to form a single, unified mass with minimal joints, achieved by pouring concrete directly where the building stands and curing in place.

Precast buildings are made from elements cast off-site in molds, then transported and assembled on site. Panelized buildings use large wall or floor panels that are also manufactured elsewhere and fitted together on site. Post-tensioned refers to a reinforcement method—tending and stressing steel strands within the concrete after it cures—that can be used in various construction types, but it doesn’t define the process of pouring the entire structure in place. So pumping concrete into forms on-site describes monolithic construction, where the structure is formed in place as a single mass.