Its average need for ceilings is 0.24 m3 per 1 m2 of living space. Unlike prefabricated reinforced concrete, monolithic reinforced concrete overlap requires the device of scaffolds, formwork, installation of reinforcement, laying a concrete mixture, long -term exposure at positive temperatures, disassembling the scaffolding and lifting.
All this is due to laborious operations, wet processes and takes a lot of time. Even with the construction of the simplest prefabricated structure from reinforced concrete beams with filling with hollow blocks, the construction time is reduced. Narrow (up to 40 cm) ribbed slabs reduce the complexity of work, but do not eliminate the plaster process and from rafting under the floors.
Enlargement and increase in the degree of readiness of prefabricated reinforced concrete ceilings, for example, an increase in the overlap area to 3-10 m2, preliminary preparation of the surface of the ceiling for painting and floor for laying parquet sharply reduce the complexity of the assembly and almost completely release from wet processes. A finished panel for a whole room with an area of up to 25 m2 reduces the complexity of assembly of the interference ceilings by about 5 times compared to the above example.
Linear elements of prefabricated interference ceilings – reinforced concrete runs and crossbars – replace metal beams in ceilings and can perceive increased loads. For example, a rectangular reinforced concrete run of 6.8 m long, replacing a double -barreled metal beam No. 36, reduces the metal consumption by 4.2 times and frees from wet promotion processes. A multi -stroke reinforced concrete flooring (6.4 m long and 1.2 m wide) makes it possible to carry out a free -tributary prefabricated interference ceiling.