FIELD: fire safety.
SUBSTANCE: composite product contains gypsum in the amount of 60-90 wt %, fibre in the amount of 1.5-26 wt %, essentially, uniformly distributed in the composite, and rheology modifier in the amount of 0.5-6 wt %. The composite is cured or allowed to solidify to form a cured composite. The cured composite is a fire-resistant element used in a fire-resistant core of a door, a fire-resistant door or a fire-resistant structural panel. The fire-resistant element may be a structural panel, a door panel, a door core, a door rail, a door stile, a door lock, a door frame or a door insert.
EFFECT: increased fire resistance.
52 cl, 30 dwg
