Cement-bound active substance

Details Cement-bound active substance Cement-bound active substance

C - Chemistry, Metallurgy

04

B

C04B 28/02 (2006.01) C04B 32/02 (2006.01)

Patent

CA 2409528

The invention relates to a novel cement-bound material with a mineral binding agent, a mineral filler and/or mineral aggregates. Said cement-bound material has a proportion of a mass hydrophobing agent comprised of stearates, siliconates, silanes or siloxanes ranging from 0.5 to 20 wt. % with regard to the weight of the mineral binding agent. The cement-bound material also has a proportion of a corrosion inhibitor, which is capable of migrating and which is comprised of nitrites, benzoates, amio alcohols or of sodium monofluorophosphates ranging from 01. to 20 kg per m3 of the active substance, and/or has a proportion of flexible fibers.

L'invention concerne un nouveau matériau lié au ciment, comprenant un liant minéral, une charge minérale et/ou des additifs minéraux. Ledit matériau lié au ciment présente une part d'agent hydrofuge de masse, à base de stéarates, de siliconates, de silanes ou de siloxanes, dans une proportion comprise entre 0,5 et 20 % en poids par rapport au poids du liant minéral. Ledit matériau contient une part d'inhibiteur de corrosion apte à la migration, à base de nitrures, de benzoates, d'aminoalcools ou de monofluorophosphates de sodium, de l'ordre de 0,1 à 20 kg par m<3> de matériau et/ou une proportion de fibres flexibles.

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