Kerneos

Michael Lievin

Ratana Soth

Philippe Thouilleux

Bruno Espinosa

Mark Winslow Fitzgerald

Charles Walter Alt

Kamel Benyahia

Christoph Wohrmeyer

Jean-Michel Auvray

Farida Kebli

Disclosed is to a calcium aluminate cement, including a calcium aluminate with a first crystallised mineralogical phase of calcium dialuminate CA2 including one calcium oxide CaO for two aluminium oxides AlOand/or a second crystallised mineralogical phase of dicalcium alumina silicate C2AS including two calcium oxides CaO for one aluminium oxide AlOand one silicon dioxide SiO. The mass fraction of all of the first and second mineralogical phases in the calcium aluminate is greater than or equal to 80%.

Long-workability calcium aluminate cement with hardening promoted by a temperature increase, and related use

Disclosed is a cement or a refractory concrete composition, including, by weight, as compared to its total weight at least: (a) from 20% to 70% of at least one aluminum organic acid, (b) from 3% to 20% of at least one deflocculant chosen from a carboxylic acid polymer, a carboxylic acid, a salt thereof, or one of their combinations, and, (c) from 7% to 44% of at least one mineral oxide. Also disclosed is the use of such an adjuvant to improve the drying time of a refractory concrete composition or to improve the permeability of a refractory concrete composition, as well as a cement composition and to a refractory concrete composition, each including such an adjuvant.

Adjuvant for a cement or a refractory concrete composition, the uses thereof, and cement and refractory concrete compositions

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Veyrins-Thuellin, France

Michael Lievin