When is precast floor panel jacking typically removed?

The removal of precast floor panel jacking is appropriately conducted when the grout has hardened. This timing is crucial to ensure the structural integrity and stability of the panels once they are set in place. Grout serves as an important component in the overall load transfer and bonding of the precast elements; thus, waiting until it has cured fully helps guarantee that the panels have sufficient support and are securely positioned before any lifting or stressing forces are applied to them.

In addition, if jacking were to occur too early, when the grout has not yet hardened, it could lead to misalignment or even failure of the grout joint, compromising the entire assembly’s integrity. Ensuring that the grout has had adequate time to cure before removing any support mechanisms allows for the proper distribution of loads and ensures that the construction can proceed safely and effectively.