FIBROUS NANOCEMENT AND PREPARATION METHOD THEREOF Russian patent published in 2016 - IPC C04B7/52 C04B7/12 

FIELD: technological processes.

SUBSTANCE: fibrous nanocement, containing in wt%, alite portland cement clinker or alite portland cement, sulphate-calcium component (in terms of SO₃), powdered modifier - organic water-reducing agent in combination with hardening accelerator, as well as mineral additive (10.4-93.4):(1-7):(0.6-2.5):(3-88), including as sulphate-calcium - natural gypsum stone, as organic water-reducing agent with hardening accelerator - polymethylene naphthalene sulphonate with sodium sulphate, at specific surface area of 400-700 m²/kg. As a component of mineral additive nanocement includes glass-fibre material of silicate or aluminosilicate composition and/or waste glass-fibre production (wt%) 3-28 in form of fragments of microfibres or microthreads with length of 0.05-10 mcm.

EFFECT: invention is intended to improve quality characteristics of process, specifically increasing compression strength and tensile bending strength, crack resistance and corrosion resistance of materials and articles based thereon.

10 cl, 3 tbl