Corrosion-resistant and resistance-reduction conductive concrete for acid soil areas

Abstract

The invention relates to the field of conductive concrete and particularly relates to corrosion-resistant and resistance-reduction conductive concrete for acid soil areas. The corrosion-resistant and resistance-reduction conductive concrete is prepared from the following raw materials: cement, polyaniline and a filler, wherein the polyaniline is composed of the following components in parts by weight: 20-40 parts of aniline, 5-15 parts of acidic catalyst, 30-40 parts of oxidant and 3-20 parts of solvent; the filler is one or more of sand, stone, fly ash and grey stone; the acidic catalyst is one or more of hydrochloric acid, phosphoric acid, picric acid, dodecylbenzene sulfonic acid, dinonylnaphthalenesulfonic acid sol and succinic acid dioctyl phthalate sulfonic acid; the oxidant is one or more of persulfate ammonium, potassium dichromate, hydrogen peroxide, potassium iodate and potassium permanganate; the solvent is one or more of water, ethanol and ethyl acetate; when applied to a transmission line grounding grid, the conductive concrete provided by the invention can be used for not only reducing the grounding resistance, but also improving the corrosion resistance of a grounding electrode, especially in an acidic corrosive soil environment.

Description

technical field [0001] The invention relates to the field of conductive concrete, in particular to an anti-corrosion and resistance-reducing conductive concrete used in acidic soil areas. Background technique [0002] Lightning strike accidents are one of the common threats to the safe operation of power transmission lines and substations, which seriously affect the stability of power system transmission. The grounding grid is an important facility for the power transmission and transformation system to ensure the safety of electrical equipment and personal safety. Ensuring that the performance of the grounding grid meets the national standard is the key to safe operation. The main parameter to measure the performance of the grounding grid is the power frequency grounding resistance value. Transmission lines and substations located in mountainous areas have high soil resistivity and large grounding resistance. It is difficult to make the grounding resistance reach the resis...

AI Technical Summary

Problems solved by technology

Although the above-mentioned patented products can be used to a certain extent, carbon nanotubes are expensive and there are few sources, and the conductive concrete prepared by using carbon fibers is expensive and not easy to promote.

The use of graphite conductive filler is cheap, but the conductivity is unstable, and it is difficult to apply to the long-term stability and low resistance requirements of the grounding grid.

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