COMPOSITE COMPOSITION FOR THE RESTORATION OF WHITE STONE MASONRY Russian patent published in 2022 - IPC C04B28/02 C04B14/06 C04B16/06 C04B24/24 

FIELD: building materials and products.

SUBSTANCE: invention relates to the production of building materials and products, in particular to pre-layout restoration and repair compositions of white stone. The composition of the composite building material consists of components in the following ratio, wt.%: cement - 20.6-22; water - 18-20.1; stone flour - 27.5-29.3; polypropylene fiber - 1.23-1.3; plasticizer - polycarboxylate - 0.4-0.7; polyvinyl acetate - PVA - 2.62-4; foam glass-ceramic microgranules - 26.5-28.2.

EFFECT: improvement of the technology for obtaining restoration material due to the content of stone flour in it, which increases the strength of the material, as well as a plasticizer, which allows to control the crystallization processes during the hardening of the binder.

1 cl, 3 tbl