PRODUCTION TECHNOLOGY OF LIGHTWEIGHT FOUNDATION BLOCKS WITH INSERTS OF POLYSTERYNE FOAM
DOI:
https://doi.org/10.33042/2522-1809-2025-3-191-362-367Keywords:
rationalization, void former, concrete, strength, formwork, fixing elementAbstract
The scientific work is dedicated to consideration of the main technological aspects of the production of effective lightweight foundation blocks with liners made of thermal insulation material. The existing latest construction technologies related to the design of lightweight structural systems, using various types of void formers, were analyzed. Based on previously implemented principles of rationalization of building structures, an experimental design of a lightweight foundation block is proposed. The experimental block was presented in the form of a solid reinforced concrete shell with ribs (lock) and the inner part was filled with inserts made of thermal insulation material. A full cycle of industrial production of experimental blocks with dimensions 1200×500×600 mm (analogous to the FBS 12-5-6 block) with void-forming inserts was carried out. The main parameters and characteristics of the applied materials (formwork, polystyrene foam, concrete) used during the production of experimental blocks were considered. Special fixing spatial element, made wire rods, for easy installation of liners was developed. Such a fixing element prevents damage, ensures stability and unchanging of geometric position of liners during concreting, while maintaining the necessary parameters of the protective layer. The time periods required for the element to gain initial strength, dismantling the formwork and subsequent storage are established. The next stage of the complex experiment involves determination of the strength characteristics of the tested samples. The obtained results can be used by technology engineers during the production of various types of individual lightweight elements and/or structural systems. These lightweight block structures can be put into permanent production by reinforced concrete structures factories (RCF). In the construction of civil structures or industrial buildings, in various hard-to-reach conditions (soil, logistics). At the same time, without violating the permissible axle load of the vehicle for transporting cargo on intercity and international roads.
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