C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 22/08 (2006.01) C04B 24/26 (2006.01)
Patent
CA 2751577
The invention relates to a fast hydraulic binder that includes cement, at least a first super-plasticiser, a calcium salt and at least a second super-plasticiser. The second super-plasticiser is different from the first super-plasticiser and includes a main chain and pending groups connected to the main chain and adapted so as to leave the main chain in a basic medium, whereby the second super-plasticiser has a fluidifying action that increases at least temporarily with time in the basic medium.
La présente invention concerne un liant hydraulique rapide comprenant du ciment, au moins un premier superplastiflant, un sel de calcium et au moins un second superplastiflant. Le second superplastiflant est différent du premier superplastiflant et comprend une chaîne principale et des groupes pendants reliés à la chaîne principale adaptés à se séparer de la chaîne principale en milieu basique, d'où il résulte que le second superplastifiant a une action fluidifiante qui croît au moins temporairement dans le temps en milieu basique.
Boustingorry Pascal
Laye Jean-Michel
Naranjo Horacio
Pellerin Bruno
Rinaldi David
Chryso
Graham Lorelei G.
Lafarge
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