FIELD: construction.
SUBSTANCE: process of a sandwich wall formation involves the use of timbering of the vertical layers of the mix-in-situ concrete interlaid with, heat-insulating layers. The wall itself is formed of three vertical layers at least that are made of reinforced concrete and subsequently joined with the adjacent layers leaving a gap not exceeding the thickness of the layers. Joining is performed by means of stiff bars manufactured in a way enabling to compress and expand and located out of alignment in the adjacent gaps. For this purpose, prefabricated reinforcement cages of the layers are made and secure them vertically and then fasten them to the prefabricated reinforcement cages of the underlying formed parts of the wall as well as to the reinforcement cages of the adjacent layers. In this case, reinforcement bars are used that are located in places designed for arrangement of the stiff bars and fastened to the reinforcement cages of the layers. Having finished the reinforcement cage of the wall, timbering is put on its both sides, and the space between the layers is filled with formers capable of being removed. Then the space between the timbering is filled with concrete and the formers are removed after the concrete gains strength enough to prevent destruction of the layers.
EFFECT: improved strength of the wall; enhanced heat-insulating properties of the wall and a possibility of erecting the walls with a wide range of their thickness.
2 cl, 4 dwg
