C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 40/06 (2006.01) C04B 28/04 (2006.01)
Patent
CA 2631326
The invention relates to a method for producing concrete parts and a structure consisting (i) in supplying a first concrete composition based on a quick binder containing Portland cement, an curing accelerator system based on Al2O3, CaO lime and SO3 sulphates, a retardant system and a superplastisizer, (ii) in a adding a releaser system for forming a second concrete composition and in pouring said second concrete composition into a concrete form. The use of a releaser system and the preparation of the first concrete composition are also disclosed.
L'invention a pour objet un procédé de réalisation de pièces et ouvrages en béton, comprenant les étapes suivantes: (i) on fournit une première composition de béton à base d'un liant rapide comprenant du ciment Portland, un système accélérateur à base d'alumine Al2O3, de chaux CaO et de sulfate SO3; un système retardateur, et un superplastifiant; puis (ii) on ajoute un système déclencheur pour former une seconde composition de béton ; et (iii) on coule cette seconde composition de béton dans le coffrage. L'invention a aussi pour objet l'utilisation d'un système déclencheur et la préparation d'une première composition de béton rapide.
Fryda Herve
Sabio Serge
Testut Michel
Gowling Lafleur Henderson Llp
Kerneos
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