Kerneos

Imertech

Hervé Fryda

Ratana Soth

Christoph Wohrmeyer

Serge Sabio

Eric Charpentier

Rose-Marie Mineau

Michel Testut

Eric Larnaudie

Enrique Elorza

Sabine Guichard

Rémy Jolly

Disclosed is a method for manufacturing a hydraulic binder including a calcium aluminate, which involves: a) providing a composition including a lime C source compound and an alumina source compound, the composition including at most 95% lime C and alumina, and at least 23% alumina, by weight relative to the total weight of dry matter of the composition; b) placing the composition provided in step a) in a moisture-saturated environment, at a hydration temperature of between 40° C. and 150° C., so as to precipitate hydrated phases containing at least one aluminium oxide combined with a calcium oxide and with water; and c) subjecting the precipitates obtained in step b) to a baking temperature of between 200° C. and 1300° C., for at least 15 minutes.

Method for manufacturing a hydraulic binder

A method for producing concrete parts and a structure includes (i) supplying a first concrete composition based on a quick binder containing Portland cement, curing accelerator system based on AlO, CaO lime and SOsulphates, a retardant system and a superplasticizer, (ii) adding a releaser system for forming a second concrete composition and pouring the second concrete composition into a concrete form. The use of a releaser system and the preparation of the first concrete composition are also disclosed.

Method for producing concrete parts and structure

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Meyrie, France

Hervé Fryda