METHOD FOR LAMINATED BUILDING BLOCK PRODUCTION Russian patent published in 2007 - IPC E04C1/40 

FIELD: construction, particularly to erect multilayered units, for instance, concrete articles, namely building blocks and slabs for envelope forming during industrial, civil and other building structures erection.

SUBSTANCE: method to produce multilayered building block on the base of rigid cement mixes and including one at least one heat-insulation layer of light-weight concrete and at least two fine concrete layers involves serially pouring different concrete mixes in form. After at least two different concrete mix layers pouring in two horizontal parallel planes upper block part is covered with additional form part. Then form with laid concrete mix layers is rotated through 90° about horizontal axis. Form part is removed from top part of the block and form is built up to adapt form for upper fine concrete layer pouring so that upper fine concrete layer is transversal to previously poured layers. After that all layers are subjected to vibroforming and curing up to cement mix stiffening. Finally form is removed.

EFFECT: improved heat insulation properties of straight and corner wall areas, window and door openings, increased strength, possibility to erect high buildings and buildings characterized by varying number of stories without the use of additional structural members to cover opened heat-insulation layers at wall corners and in window and door opening edges.

6 dwg