What is the minimum time for the removal of forms and false works for beams and all other vertical surfaces?

The minimum time for the removal of forms and falsework for beams and other vertical surfaces is influenced by the curing and setting characteristics of the concrete used. The standard practice typically allows for the removal of formwork after a period of one day, provided that the concrete has attained sufficient strength to support its own weight and any loads imposed upon it.

This timeframe is based on the assumption that the concrete mix contains sufficient cement and has been placed under optimal curing conditions. The rapid development of strength in concrete depends on several factors including temperature, humidity, and the specific characteristics of the mix.

In many construction codes and guidelines, the minimum time may be set at one day for vertical surfaces (such as walls and columns) because these structures generally need less time to achieve initial set and, subsequently, enough strength to withstand some loading once the forms are stripped.

Longer durations for form removal, as indicated in the other options, are typically recommended for horizontal surfaces or when specific conditions necessitate a more cautious approach to ensure safety and structural integrity.