2. Preparing for execution

2.1 Compliance with contract documents

The special technical specifications (CCTP) often give the contractor the option of building certain parts of the structure in concrete, either directly in situ, or using prefabricated components, on the express condition that the final structure conforms to the project and is of identical quality.

The quality of the facings and compliance with the tolerances stipulated in the CCTP, but also in the DTUs in force, are the sine qua non of this freedom to choose the construction method.

The company must then decide whether to :

• produce the concrete elements themselves using traditional methods (formwork, reinforcement, then casting on site);

• ...