Construction technology of fixed formwork and quality control

Abstract

Abstract The main results of the research are to find numerical solutions for selecting effective fixed formwork material for columns and analysis of technological operations. The use of fixed formwork of glass-magnesite sheet allows improving quality and stability of the structure, increase fire resistance, which helps to extend the life of the concrete structure. Based on numerical and experimental studies, a model of the formwork fastener for a round column of 3 m high, with a diameter 500 mm was developed. A calculation model was created and the design of the formwork made of glass-magnesite sheet was calculated. So, for the diameter of the concrete column from 300 to 600 mm, the thickness of the glass-magnesite sheet varies in the range: 7-23 mm. A workflow has been developed for the installation of fixed formwork and for concreting columns with the determination of the required amount and type of work, with the determination of the complexity; a workflow for the quality control of work has also been developed. Such periods as: accepting of elements of fixed formwork, installation of fixed formwork elements, accepting of timbering construction operations must be monitored.