Protective rod, rod for concrete structure, manufacturing process of rod body and anchor rod

Abstract

The invention provides a protective rod. At least one section of the rod body of the protective rod is a protective section. Protective material coats the protective sections. A protective sleeve capable of wrapping the protective material sleeves each protective section. One end or two ends of each protective sleeve are provided with sealing fixing ends which allows the tips of the protective sleeves to combine and fix with the rod body so as to prevent the sliding of the protective sleeves and avoid protective material leaking. The protective sleeves are heat-shrinkable bushes or thermos-melting bushes formed through thermos-melting extrusion. The protective rod has the advantages that sealing of the protective material is achieved by the protective sleeves, the protective material is prevented from losing, the protection function of the protective material can be kept, and the protective sleeves constantly and tightly wraps the protective material to prevent the protective material from leaking; the protective sleeves are positioned and fixed by the sealing and fixing ends, and protection reliability of the protective sections is increased. The invention further provides an anchor rod with the protective rod, a rod for a concrete structure, and a manufacturing process of the rod.

Description

technical field [0001] The invention relates to the field of civil engineering, in particular to a protective rod body with good corrosion resistance, a rod body used for concrete structures, a manufacturing process of the rod body and an anchor rod with a protective rod body, which are mainly used in concrete structures, foundation anti-floating , foundation pit and slope support, and also used for reinforcement of tunnels and dams, as well as connecting rods or stress rods used in various projects. Background technique [0002] Rod bodies are widely used in various fields, such as screw steel in concrete engineering, anchor rods for foundation pits, slopes, basement anti-floating, tunnel and underground engineering reinforcement and protection, and some are used as connecting rods or rods in other projects. force rod and so on. [0003] For the rod body, it is generally made of metal materials. Because it is easily affected by environmental conditions, it is faced with an...

AI Technical Summary

Problems solved by technology

This method has the following disadvantages: First, there is a gap between the casing and the anchor rod, and the risk and possibility of underground water and soil penetrating the gap are relatively high. It is also easy to mix other debris during on-site construction and installation, which will affect the anchor rod. Second, the ports at both ends of the casing are open, so that when the anchor is installed, the connection will crack or fall off, and the anti-corrosion material (grease, etc.) in the casing will easily leak into the anchor hole and affect the nature of groundwater. , affecting the solidification and mechanical properties of the cement slurry, groundwater and other impurities can easily penetrate between the anti-corrosion layer of the bolt and the casing, and it is difficult to achieve a better anti-corrosion effect; third, in order to ensure the sealing performance of the casing port, When it is connected with related components, it needs to be realized by a combined structure of sealing material and fasteners, which undoubtedly increases the product cost, and this on-site assembly method cannot better guarantee its better sealing performance

Based on the above defects, it is difficult for this form of bolt to truly meet the requirements of permanent anticorrosion

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