FIELD: construction.
SUBSTANCE: invention relates to a lightweight construction slab, in compliance with the restrictive part of paragraph 1 of the claim, to the use of lightweight construction slab to create the building shell, in compliance with the restrictive part of paragraph 10 of the claim; and to the method of manufacturing the lightweight construction slab, in compliance with the restrictive part of paragraph 11 of the claim. A lightweight construction slab (100) with a rectangular base shape and flatly interconnected layers (01, 02, 03, 04 …), each of which is formed by a plurality (20) of boards (2). The boards (2) of each layer (01, 02, 03, 04, …) on their lateral surfaces are connected with one another on the sides and on at least one principal surface (205, 205') have a plurality of grooves parallel to one another. The boards of the first and the second layer (01, 02) are oriented at a first acute angle (+α, -α) from 25 to 60° with respect to the longitudinal side surfaces (200, 200') of the lightweight construction slab (100). The boards (2) of the first layer (01) are oriented with respect to the boards (2) of the second layer (02) at an angle (2α). The lightweight construction slab (100) on at least two longitudinal lateral surfaces (101, 101') parallel to each other has at least one connecting tongue (102) and a connecting ridge (102') interacting with it with the form closure, for connecting with the form closure on both sides with lightweight construction slabs (100) made in the same manner. Wherein the boards of at least one layer are connected at the sides to one another with the form closure through the tongue (202) and the ridge (202), and the boards (2) of at least one layer (01, 02) located in the middle stratum (Ml) on both sides (205, 205') or, respectively, on both main surfaces (205, 205') are equipped with a first and a second plurality of grooves (3, 3') crossing one another at angles (γ) from 5 to 100°, the grooves of each plurality passing parallel to one another. The application of a lightweight construction slab and the method for manufacturing a lightweight construction slab are also described.
EFFECT: finding a simple solution, by means of which it is possible to make lightweight construction slabs having no tensions, if possible, with a sufficiently high elasticity and a high residual strength at strong bending; the possibility for applying the lightweight construction slabs in buildings in places subject to earthquake hazards should be ensured.
13 cl, 19 dwg
