Method for preventing hardened cementitious material from deteriorating
AssigneeNissan Chemical Industries, Ltd.
InventorsMakoto Takakura, Takahiro Hori, Yuriko Sakaguchi, Yuji Nakamura
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Abstract
The invention is a method for preventing a hardened cementitious material from deteriorating or for repairing a deteriorated cementitious material, and more particularly to such method for the hardened cementitious material comprising metal materials to be corroded by a salt content and cause alkali-aggregate. It is characterized by applying a cement paste, mortar or concrete added with 1-25 weight % lithium nitride relative to the cement content so as to cover the surface of hardened cementitious material.
Claims3
A method for preventing a hardened cementitious material from deteriorating comprising the steps of:
- (a) applying a cement paste, mortar or concrete composition containing 1-25 weight % of lithium nitrite relative to the cement content, so as to cover the surface of a hardened cementitious material, and
- (b) allowing said composition to harden.
Dependencies are inferred from the claim text.