WATER REPELLENCY AND NON-FREEZING IN WINTER AQUEOUS CONCRETE SURFACE REINFORCING AGENT BASED ALKALI SILICATE, MANUFACTURING METHOD THEREOF AND METHOD OF TREATING CONCRETE SURFACE REINFORCEMENT USING THE SAME

摘要

The present invention is an aqueous concrete surface strengthening agent that does not freeze at -10 ° C., and can be applied even in winter, and the chemical reaction of potassium silicate (PMS) as well as the concrete surface strengthening effect expressed by the chemical reaction of alkali silicates. The present invention relates to an aqueous alkali silicate-based concrete surface hardener having water repellency and anti-freezing properties, a method for preparing the concrete surface hardener and a concrete surface hardening method using the concrete surface hardener. Since the concrete surface strengthening agent disclosed in the present invention contains alkali silicate and potassium methyl silicate, calcium silicate (or metal) reacts with polyvalent metal ions such as Ca ^{++ in} which the silicate penetrates deeply into the structure of concrete and flows out of concrete. At the same time, it forms a salt to fill the pores, while potassium methyl silicate reacts with carbon dioxide gas in the air to form polymethyl silicate to impart a filling effect and water repellency in the concrete structure, thereby providing properties such as water resistance, extrusion strength, and abrasion resistance of concrete structures. It can greatly improve.