During construction of cast-in-situ reinforced concrete structures, the quality of formwork and its attachments shall be controlled in the first place. Provisions are made for application of prefabricated reusable formwork (“Doka”, “Peri”, etc.). It is required to check the correctness of layout of the structure axes, formwork geometrical dimensions and conformity with design dimensions. The diameters and dimensions of reinforcement bars as well as correctness of their installation and welding shall also be checked. Welded joints of reinforcement and embedded parts shall be performed in compliance with GOST 14098-2014. Concrete preparation and placement, quality of applied materials, procedure of their acceptance and testing as well as transportation and storage are subject to control. All the above mentioned shall comply with GOST for materials, SP 48.13330.2011 and detailed design drawings. Quality control of the concrete shall be carried out at the stages of its preparation and in ready state. Strength, frost resistance and water tightness of the concrete shall be checked.