Reinforced concrete rust inhibitor

Abstract

The invention discloses a reinforced concrete rust inhibitor, and relates to the technical field of building materials. The reinforced concrete rust inhibitor consists of the following components in percentage by weight: 10.0 to 15.0 percent of nitrite, 0.1 to 1.0 percent of sodium hexametaphosphate, 0.5 to 1.0 percent of diethylenetriamine, 0.8 to 1.5 percent of thiourea, 0.5 to 1.0 percent of sodium benzoate, 1.0 to 1.5 percent of naphthamine, 3.0 to 5.0 percent of triethanolamine, 5.0 to 1.0 percent of water reducing agent, 0.001 to 0.005 percent of air entraining agent, and the balance of water. The reinforced concrete rust inhibitor has the advantages of low consumption, capability of reducing the consumption of a single rust inhibitor and the like, and can be widely applied to fresh reinforced concrete structures of projects of harbors, railways, coastal buildings, civil buildings and the like. The durability and the comprehensive corrosion resistance of concrete can be promoted, the service life of a building is remarkably prolonged, and remarkable economic benefit and social benefit can be brought.

Description

technical field [0001] The invention belongs to the technical field of building materials, in particular to a rust inhibitor for reinforced concrete. Background technique [0002] Steel corrosion has become the main factor affecting the durability of concrete in today's world. The economic loss caused by corrosion of steel bars is huge. The annual economic loss caused by steel corrosion damage to infrastructure in the United States is 150 billion U.S. dollars, the annual infrastructure repair cost in the United Kingdom is 5.5 billion pounds, and the annual corrosion loss in Australia is 2.5 billion. Billion US dollars, and specifically pointed out that the main part was caused by the corrosion of steel bars. In my country, the phenomenon of "sea sand houses" in coastal areas and the corrosion of steel bars caused by spraying deicing salt on roads and bridges in northern areas are also very serious. The anti-corrosion of steel bars in reinforced concrete structures has attr...

AI Technical Summary

Problems solved by technology

This invention uses a combination of organic and inorganic materials, which has excellent anti-rust performance, but fails to improve other properties of concrete, such as compactness, impermeability, etc., from the perspective of the concrete anti-corrosion agent itself.

If the concrete mix design is unreasonable, it may aggravate the occurrence of corrosion