Technology for the Construction and Renovation of Buildings Using Modern Formwork

Formwork operations account for 45–65% of the total labour input in monolithic reinforced concrete construction, so the choice of formwork system largely determines the efficiency of both new building and renovation. This study systematises and compares the technical characteristics of reusable formwork systems by Doka, NOE, Dalli and Utinor. A qualitative comparative analysis of manufacturers’ documentation and published research assessed structural design, permissible concrete pressure, handling method, reuse cycles and suitability for walls, columns, foundations and floor slabs. The systems differ mainly in frame material, load capacity and service life: reuse potential reaches 800 cycles for Utinor steel formwork, 500 for the NOE steel frame and 400 for the NOE aluminium frame. Lightweight aluminium systems suit manual assembly in confined spaces, whereas steel panel systems suit large wall areas with a crane.