A resource-efficient method of installation of prefabricated monolithic floor slabs by increasing the degree of their construction readiness is proposed in the article. This effect is achieved by the reducing of their own weight and the use of fixed formwork. The reduction in the dead weight of the precast-monolithic floor slab is ensured by the use of light three dimensional lined forms of trapezoidal or rectangular shape, preferably made of expanded polystyrene during the installation of the floor slab. The use of fixed timber formwork will obviate the need for the later implementation of labor-intensive finishing and insulation works. Thus, the installed floor slab will have an increased degree of building readiness immediately after its manufacture, and will also reduce the weight of the structure, which in turn will reduce the material consumption and accordingly the cost of the supporting structures of the building.
The article shows the feasibility of improving the manufacturability of the prefabricated monolithic floors reinforced concrete structures production by reducing their own weight. In the works of the authors, the reduction of the sole weight and the cost is achieved by using the light materials filling the inter-gully space. It is proposed to use gas-concrete, polystyrene foam concrete blocks or limestone-limestone blocks as a local building material in the Crimea with such materials for the advanced system MARCO. Due to that, the cost of the interfloor overlap device has been reduced by approximately 10%. In addition, there is an additional cost reduction also due to the improved ergonomic work performance, increasing the productivity of workers by 6%. Innovative design and technological solutions are also presented, replacing the part of heavy concrete in a flat floor slab with hollow cores made of lightweight artificial materials - expanded polystyrene, polyethylene or cement wood.
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