Carbonized concrete structure becomes superannuated gradually and its accelerated subsequent deterioration process leads to corrosion of steel while it ages. Recently economical and environmental concern about remodeling such superannuated concrete, including the basic structure of concrete, has been rapidly growing. Alkali restorative, which restores alkalinity in carbonized concrete structure, is used in the field of remodeling in order to improve the property of concrete structure. There have been many different kinds of materials which restore alkalinity in carbonized concrete. They can be classified according to their structural elements. This study focuses on the alkali restorative which mainly consists of silicic lithium metallic salt while examining the durable effectiveness of the factors (such as water permeation, surface erosion, elution of alkali, etc.), which will continuously affect concrete as deteriorating factors even after the restoration of alkali. The result shows that the alkali restorative consisting mainly of silicic lithium contributes to water-resistance, surface strength, and long term durability of alkali due to water permeation in carbonized concrete.