Cementitious mortar and method for improved reinforcement of building structures

摘要

Cementitious mortar with improved characteristics for forming structures incorporating synthetic fibres, in particular in the form of webs, for reinforcing building structures. The mortar comprises a methylmethacrylate/n-butylacrylate copolymer resin and glass filaments dispersed in the mortar.;The invention also relates to a reinforcement method for building structures, using said mortar.

主权项

1. A cementitious mortar consisting of:
(a) 5% to 89.595% of a cement, (b) 10% to 70% of an inert mineral filler having a particle dimension less than 700 microns, (c) 0.05% to 2.5% of at least one additive selected from the group consisting of a fluidifying additive and a superfluidifying additive, (d) 0.005% to 1% of a thixotropic additive of a cellulose class, (e) 0.3% to 24% of a methylmethacrylate/n-butylacrylate copolymer resin, and (f) 0.05% to 30% of a glass filament dispersed in the mortar, the glass filament having a length of 1 to 30 mm and a diameter of 5 to 100 microns, and (g) a laurylsulphonic acid compound in an amount of up to 1.5%, the percentages being by weight referred to the total weight of the cementitious mortar.