Field tests results on static effects of prefabricated large size panels

Research relevance: prefabricated large-sized partition panels and frame fillings made of polystyrene concrete with a thickness of δ = 100 mm for multi-storey, frame-monolithic construction, are the own development of Center for Construction Technologies LLC and currently have no analogues in the Kyrgyz Republic. Research objectives: carrying out a complex of full-scale static and dynamic tests in order to issue a technical opinion on the strength, rigidity and crack resistance for prefabricated, large-sized partition panels and frame fillings made of polystyrene concrete with a thickness of δ = 100 mm. Research methods and materials: assessment of strength, stiffness and crack resistance of products made of polystyrene concrete, by conducting full-scale static and dynamic tests in the working position, in addition, a set of tests is provided to determine the actual physical and mechanical characteristics of polystyrene concrete and working reinforcement in accordance with GOST 10180-2012 “Concrete”. Research results: when tested for static impacts, the stage of cracking occurred at a concentrated load of 200 kgf, and the loss of the panel's bearing capacity occurred at a concentrated load of 828 kgf. Conclusions: it is allowed to use polystyrene concrete panels δ=100 mm as partitions and wall filling of the frame of residential and public buildings, including for external non-bearing walls with insulation in accordance with the current rules. Results obtained after dynamic tests of panels, key joints and attachment points of panels to supporting structures from the top and bottom showed that the materials were subjected to minor destruction.