F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 58/06 (2006.01) F16L 58/10 (2006.01)
Patent
CA 2274016
The invention concerns a product for coating the internal surface of a conduit (1), in particular a metal conduit, comprising an internal wall (4) with strong curvature. Said product comprises a solid filler and a liquid. The liquid is an alkaline silicate solution and the solid filler comprises sand, between 20 and 30 % by volume of a binder with chemical setting by reacting with the liquid, and between 4 and 10 % by volume of plasticizing additives. The solid filler and the liquid are designed to be mixed (in 5) with a liquid/binder mass ratio between 0.35 and 0.45 approximately. The invention is applicable to high tensile iron conduits evacuating waste water.
Image L'invention concerne un produit de revêtement interne d'un élément de canalisation (1), notamment métallique, comprenant une paroi interne (4) à forte courbure. Ce produit comprend une charge solide et un liquide. Le liquide est une solution d'un silicate alcalin et la charge solide comprend du sable, entre 20 et 30 % en masse d'un liant à prise chimique par réaction avec le liquide, et entre 4 et 10 % en masse d'adjuvants plastifiants. La charge solide et le liquide sont destinés à être mélangés (en 5) avec un rapport massique liquide/liant compris entre environ 0,35 et 0,45. Application aux canalisations d'évacuation des eaux usées en fonte ductile.
Pont-A-Mousson S.a.
Robic
Saint-Gobain Pam
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