Rust inhibitor for concrete reinforcement

Abstract

The invention discloses a rust inhibitor for a concrete reinforcement, and belongs to the technical field of building chemicals. The rust inhibitor for the concrete reinforcement is prepared from thefollowing components of water, dopamine, chromium salt, ammonium polyacrylate, a self-made surfactant, a thickener and graphene oxide dispersing liquid. The rust inhibitor is prepared by the followingsteps of dispersing the polyacrylamide, the self-made surfactant and the thickener into the water; then, adding the chromium salt and the graphene oxide dispersing liquid; heating, stirring to react,and cooling, so as to obtain a slurry; adding the dopamine into the slurry, and introducing carbon dioxide, so as to obtain the rust inhibitor for the concrete reinforcement. The rust inhibitor for the concrete reinforcement has excellent rust inhibiting effect.

Description

technical field [0001] The invention discloses a concrete steel bar rust inhibitor, which belongs to the technical field of construction chemicals. Background technique [0002] Corrosion of steel bars is an important factor reducing the durability of concrete, which can cause premature failure of reinforced concrete structures. Professor P.K.Mehta once clearly regarded "steel corrosion" as the primary factor affecting the durability of concrete. [0003] Steel bar rust inhibitor is a chemical substance that can hinder or delay the corrosion of steel bars. It can be mixed into the interior of the concrete or coated on the surface of the concrete to protect the concrete steel bars. The anti-corrosion mechanism of the rust inhibitor is generally believed that the rust inhibitor can migrate to the surrounding steel bars in the form of gas or liquid phase through the pores inside the concrete, and a chemical reaction occurs at the steel bar / concrete interface, which promotes th...

AI Technical Summary

Problems solved by technology

[0010] The technical problem mainly solved by the present invention is: Aiming at the problem that the anti-rust effec