Hydraulic binder with enhanced aging properties

Details Hydraulic binder with enhanced aging properties Hydraulic binder with enhanced aging properties

C - Chemistry, Metallurgy

04

B

C04B 24/04 (2006.01) C04B 28/02 (2006.01)

Patent

CA 2455338

The invention concerns mineral binders, in particular hydraulic binders, such as cements, mortars with enhanced aging properties. More particularly, the invention concerns hydraulic binders based on mineral silicates having greater aging strength, a method for making said binders and their uses and articles obtained from same. The invention is characterised in that it consists in adding an organic compound comprising two hydrophilic functions and a hydrophobic chain such as adipic acid to the hydraulic binder to slow down the water uptake rate of said binder.

La présente invention concerne les liants minéraux comme les liants hydrauliques tels que ciments, mortiers ô vieillissement amélioré.Elle se rapporte plus particulièrement aux liants hydrauliques ô base de silicates minéraux présentant une meilleure résistance au vieillissement, un procédé de fabrication de ces liants ainsi que leurs utilisations et articles obtenus avec de tels liants. L'invention consiste en l'addition d'un composé organique comprenant deux fonctions hydrophiles et une chaine hydrophobe tels que l'acide adipique au liant hydraulique pour ralentir la vitesse de reprise en eau de ce liant.

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