Accelerator mixture and method of use

Details Accelerator mixture and method of use Accelerator mixture and method of use

C - Chemistry, Metallurgy

04

B

C04B 22/14 (2006.01) C04B 22/06 (2006.01) C04B 24/12 (2006.01)

Patent

CA 2744931

The invention concerns an alkali-free and HF-free accelerator mixture which contains aluminium in oxidation state 3, sulphate and hexafluorosilicic acid, a process for the preparation of said accelerators and the use of said accelerators for the coating of substrates with concrete or mortar. Furthermore the invention relates to concrete or mortar containing accelerators according to the invention and the hardened layers produced by applying the accelerators to concrete or mortar. The invention relates also to the use of hexafluorosilicic acid as a stabilizer.

Linvention concerne un mélange accélérateur sans alcali et sans HF contenant de laluminium à létat doxydation 3, un sulfate et de lacide hexafluorosilicique, un procédé de préparation desdits accélérateurs et lutilisation desdits accélérateurs pour le revêtement de substrats avec un béton ou un mortier. En outre, linvention concerne un béton ou un mortier contenant les accélérateurs de linvention et les couches durcies produites par lapplication des accélérateurs sur un béton ou un mortier. Linvention concerne également lutilisation dacide hexafluorosilicique comme stabilisateur.

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