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Anodic sacrifice protection method of steel reinforced concrete bridge pier

A sacrificial anode protection and reinforced concrete technology, applied in bridges, bridge parts, bridge construction, etc., can solve the problems of limited application, low price, unfavorable use of large-scale reinforced concrete structures, etc., to achieve low price, enhanced protection, The effect of easy installation

Inactive Publication Date: 2008-01-23
SUNRUI MARINE ENVIRONMENT ENG
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  • Abstract
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Problems solved by technology

However, the price of these additives is not cheap, which is not conducive to large-scale use on large reinforced concrete structures, thus limiting the application of the above technology

Method used

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  • Anodic sacrifice protection method of steel reinforced concrete bridge pier

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Embodiment

[0021] First determine the protected area of ​​the expanded anode, the area is above the average low tide level and the splash area, fix the expanded anode 2 on the surface of the inner reinforced concrete pier 8, and then wrap the expanded anode 2 with a composite sheath 4, and fill it with conductive cement mortar The material 12 is poured between the composite sheath 4 and the reinforced concrete pier 8, so that the conductive cement mortar filler 12 evenly wraps the extended anode 2; during the fixing of the composite sheath 4 and the curing of the conductive cement mortar filler 12, non The metal fastener 5 assists in fixing the composite material sheath 4, and finally promotes the combination of the composite material sheath 4 and the conductive cement mortar filler 12; one end; the extended anode 2 is integrated through the extended anode connector 11 to generate a protective current; the underwater sacrificial anode 7 is fixed with an underwater fixture 14, and the fixi...

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Abstract

The utility model relates to an abandon-anode-protection method in the technical field of anti-corrosion for metals in reinforced concrete structures in marine environment, in particular to an abandon-anode-protection method for reinforced concrete in an area with tide difference and wave splashing. The main structure includes a terminal box, an extended anode, an electric connecting wire, a composite sheath, a metallic fastener, a sheath-connecting slot, an under-water abandon anode, a reinforced concrete bridge pier, rebars, fixing parts, extended-anode connector, electrically conductive cement mortar filler, conductive connectors and under-water fixers. The rebars in the concrete are fixedly connected with the conductive connectors at one end of the abandon anode; the electrically conductive cement mortar filler fixes the extended anode on the surface to be protected; the under-water abandon anode is fixed by steel strip or angle steel, and is electrically connected with the rebars in the concrete. The abandon-anode-protection method for reinforced concrete in an area with tide difference and wave splashing is characterized by no maintenance, easy installation, is helpful for after-stage replacing and re-protection, and will not influence the service life or operation of the reinforced concrete structures.

Description

Technical field: [0001] The invention relates to a sacrificial anode protection method in the technical field of metal anticorrosion of reinforced concrete structures in marine environments, in particular to a sacrificial anode protection method for reinforced concrete in tidal range and splash zones. Background technique: [0002] As we all know, reinforced concrete is not only the most used building material, but also the largest man-made material in contemporary times. In reinforced concrete structures, steel bars are the main load-bearing materials. Under normal circumstances, steel bars are passive in the highly alkaline environment of concrete and are not subject to corrosion. However, with the deterioration of concrete or environmental erosion, steel bars will rust, which will affect the bearing capacity of the structure, and even lead to structural damage in severe cases. It can be said that the corrosion of reinforced concrete has become a worldwide problem. In th...

Claims

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Application Information

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IPC IPC(8): C23F13/06E01D19/02
Inventor 赵永韬高通和侯健史俊虎
Owner SUNRUI MARINE ENVIRONMENT ENG
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