A false work is created using treated wood to support poured concrete as it cures, which can burn away and create a collapse hazard. What is this method called?

A false work is created using treated wood to support poured concrete as it cures, which can burn away and create a collapse hazard. What is this method called?

• A. Wood Construction
• B. Cast in Place
• C. Spalling
• D. Tensioned framework within concrete

Answer: (B)

The situation describes casting concrete in place behind temporary forms on the job site. Cast in place means the concrete is poured into forms and allowed to cure where the structure stands, with temporary supports (falsework) like treated wood holding the form until the concrete gains strength. If the wood falsework burns away or fails during curing, the fresh concrete can lose support and collapse, creating a hazard. Why the other terms don’t fit as the method: Wood Construction refers to building with wood framing overall, not the specific process of pouring and curing concrete in place. Spalling is about cracking or breaking of concrete surface, often from internal stress or fire exposure, not about the method of construction. Tensioned framework within concrete points to post-tensioning within the cured concrete, a permanent reinforcement method, not the temporary formwork used during casting.

The situation describes casting concrete in place behind temporary forms on the job site. Cast in place means the concrete is poured into forms and allowed to cure where the structure stands, with temporary supports (falsework) like treated wood holding the form until the concrete gains strength. If the wood falsework burns away or fails during curing, the fresh concrete can lose support and collapse, creating a hazard.

Why the other terms don’t fit as the method: Wood Construction refers to building with wood framing overall, not the specific process of pouring and curing concrete in place. Spalling is about cracking or breaking of concrete surface, often from internal stress or fire exposure, not about the method of construction. Tensioned framework within concrete points to post-tensioning within the cured concrete, a permanent reinforcement method, not the temporary formwork used during casting.