Reinforced concrete anti-rusting agent

Abstract

the invention discloses a concrete bar anti-rust agent, which comprises the following parts: 10-20% amido alcohol, 10-30% acid and 60-70% water. The invention possesses high rust-proof property, which is fit for harbor engineering and civil concrete structure.

Description

technical field [0001] The invention relates to a building material, in particular to a rust inhibitor for reinforced concrete. Background technique [0002] Corrosion of steel bars has become the main factor affecting the durability of concrete in today's world, especially in the environment of chloride salts, corrosion of steel bars is the primary reason. The 1975 survey by the American Bureau of Standards showed that the annual various corrosion losses in the United States were 70 billion U.S. dollars, of which the corrosion loss of steel bars in concrete accounted for 40% (28 billion U.S. dollars). Recently, the U.S. Highway Research Strategic Plan disclosed that by the end of this century, it is estimated that it will cost 400 billion US dollars to replace or repair highway concrete bridge decks caused by icing salt in cold weather, most of which are caused by steel corrosion. In northern my country, reinforced concrete overpasses such as those in Beijing and Tianjin h...

AI Technical Summary

Problems solved by technology

However, nitrite rust inhibitors have the problem that insufficient dosage will accelerate corrosion, and domestic use is more cautious

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