CORROSION INHIBITOR FOR CEMENT COMPOSITIONS

An anti-corrosion agent for use with a cementitious composition which is to be reinforced, comprising one or more species selected from a group consisting of alkyldiamines represented by the general formula RHN-(CH2)n-NH2 (in which R is an alkyl having C8-22 atoms, and n is an integer of 1-5) and al...

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Bibliographische Detailangaben
Hauptverfasser:	FURUSAWA, TAKAO, OZAWA, TAKEO, HAMABE, KENKICHI, HAGIWARA, YUKI
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY REFRACTORIES SLAG TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	An anti-corrosion agent for use with a cementitious composition which is to be reinforced, comprising one or more species selected from a group consisting of alkyldiamines represented by the general formula RHN-(CH2)n-NH2 (in which R is an alkyl having C8-22 atoms, and n is an integer of 1-5) and alkylamines represented by the general formula R-NH2 (in which R is an alkyl having C8-22 atoms). The agents give good anti-corrosion performance which does not decline with time and exposure to the elements to the same extent as is the case with conventional anti-corrosion agents. L'invention porte sur un agent anticorrosion s'utilisant avec une composition à base de ciment devant être renforcée, et comportant une ou plusieurs substances choisies des alkyldiamines de formule générale RHN-(CH2)n-NH2 (dans laquelle R est un alkyle C8-22 et n un entier de 1 à 5), ainsi que des alkylamines de formule générale R-HN2 (dans laquelle R est un alkyle C8-22). Ces agents présentent un bon pouvoir anticorrosif ne faiblissant pas dans le temps ni sous les intempéries autant que les agents anticorrosion usuels.