C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 14/34 (2006.01) C04B 20/10 (2006.01) C04B 20/12 (2006.01) C04B 22/04 (2006.01)
Patent
CA 2373435
The invention relates to mortar and reinforced concrete used in the building industry and civil engineering. The inventive nodules respectively comprise: a metal core containing one or several metals or metal alloys chosen from those which have an electrochemical potential which is lower than that of iron, and a protective envelope surrounding the core and made in such a way that when the nodules are used to produce and apply a mortar, concrete or the like, sufficient mechanical resistance is provided when mixing occurs with grains that make up mortar, concrete or the like and a temporary barrier against water is established at least until the mortar, concrete or the like has set. The invention can be used to repair reinforced concrete structures which have been damaged by corrosion.
Protection contre la corrosion des armatures métalliques d'ouvrages en béton armé ou analogue par utilisation de nodules métalliques comme anodes sacrificielles dans le béton. Les nodules comprennent chacun: un noyau métallique contenant un ou plusieurs métaux ou alliages métalliques choisis parmi ceux présentant un potentiel électrochimique inférieur à celui du fer; et une enveloppe protectrice, entourant le noyau, réalisée de manière, lors de l'utilisation des nodules pour la préparation et la mise en oeuvre d'un mortier, béton ou analogue, à: d'une part, présenter une résistance mécanique suffisante pour résister à un malaxage avec des granulats constitutifs du mortier, béton, ou analogue; et, d'autre part, constituer une barrière temporaire à l'eau, jusqu'à une prise partielle au moins du mortier, béton ou analogue.
Guerin Richard
Loyer Jacques-Henri
Guerin Richard
Loyer Jacques-Henri
Robic
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