Heavy anti-corrosion device for PHC precast concrete pile
By installing multi-layer nanocoatings and reinforcements on the surface and interior of PHC pipe piles to form a high-strength anti-corrosion insulating sleeve, the problems of corrosion and insufficient structural rigidity of PHC pipe piles in sea areas are solved, and effective anti-corrosion and structural enhancement are achieved.
Patent Information
- Application Number
- CN202421955218.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-13
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-08-13
AI Technical Summary
In sea area projects, PHC pipe piles are exposed to seawater, salt spray and biological corrosion for a long time, resulting in rust on the outer surface and marine biological deposition, forming safety hazards. Existing anti-corrosion measures are difficult to effectively prevent corrosion and improve structural rigidity.
A PHC precast concrete pile heavy anti-corrosion device is adopted. By setting the first nanocoat, photocured nanosheet and second nanocoat on the surface of the concrete pile body, and setting reinforcements inside, including T-shaped reinforcement rods and annular steel bars, a high-strength, high-temperature-resistant, seamless sealed anti-corrosion insulating sleeve is formed to enhance structural rigidity.
It achieves comprehensive corrosion protection for concrete piles, eliminates corrosive media penetration, ensures long-term stability of the substrate, provides good protection and enhancement effects, and improves the corrosion resistance and service life of PHC precast concrete piles.
Smart Images
Figure CN222975844U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of anti-corrosion of PHC pipe piles, and particularly relates to a heavy anti-corrosion device for PHC precast concrete piles. Background Art
[0002] In recent years, due to the advantages of simple process, reliable quality, fast construction speed, low cost, and convenient detection, PHC pipe piles have been widely used in engineering projects in China. PHC pipe piles, also known as high-strength prestressed concrete pipe piles, are mainly made by the pretensioning prestress process and the centrifugal method, and are a kind of round pipe-shaped reinforced concrete precast piles formed by high-pressure and steam curing, with the characteristics of fast pile formation, high strength, and reliable quality.
[0003] In the construction of marine engineering, since the lower part of the concrete pile is immersed in seawater for a long time, and the upper part is in the tidal zone, splash zone, and heavy salt fog zone, it is subjected to seawater immersion, splashing, wet-dry alternation, and high-concentration salt fog Cl - corrosion. Coupled with the attachment and growth of marine organisms, long-term bioacid corrosion is also brought. After using for a certain number of years, large areas of rust return and marine organism deposits basically appear on the outer surface of the concrete pile, especially above the low tide level, posing a certain safety hazard to the foundation.
[0004] Therefore, it is urgent to develop a heavy anti-corrosion device for PHC precast concrete piles that is heavy anti-corrosion, erosion-resistant, crack-resistant, and impact-resistant. Content of the Utility Model
[0005] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide a heavy anti-corrosion device for PHC precast concrete piles.
[0006] To achieve the above purpose, the technical scheme adopted by the utility model is as follows: a heavy anti-corrosion device for PHC precast concrete piles, including a concrete pile body, a first nano-coating is provided on the surface of the concrete pile body, a photocurable nano-sheet is provided on the first nano-coating, and a second nano-coating is provided on the photocurable nano-sheet; a reinforcing member is provided inside the concrete pile body, the reinforcing member includes a reinforcing rod, and steel bars for fixing the reinforcing rod are connected to the reinforcing rod, and the reinforcing member is arranged inside the first nano-coating.
[0007] Further, the thickness of the photocurable nano-sheet is 1.75 - 1.85 mm.
[0008] Further, the first nano-coating includes two layers, and the thickness of each layer of the first nano-coating is 0.07 - 0.08 mm.
[0009] Further, the second nano-coating is an anti-corrosion coating, the anti-corrosion coating includes two layers, and the thickness of each layer of the anti-corrosion coating is 0.04 - 0.6 mm.
[0010] Furthermore, the reinforcing bars are arranged in a T shape.
[0011] Furthermore, the reinforcing bars are arranged in a ring shape, and there are several of them. The several reinforcing bars are arranged at equal intervals, and several of the reinforcing bars are provided between adjacent reinforcing bars.
[0012] Furthermore, several through holes for the reinforcing bars to penetrate are formed in the reinforcing bars, and grooves adapted to the tops of the T-shaped reinforcing bars are provided on the periphery of the through holes.
[0013] Furthermore, positioning holes for fixing the T-shaped reinforcing bars are provided on the reinforcing bars, and the positioning holes and the through holes are arranged at intervals.
[0014] Furthermore, the inner diameter of the annular reinforcing bar is smaller than the diameter of the concrete pile body.
[0015] Furthermore, the reinforcing bar is a stainless steel round pipe.
[0016] Compared with the prior art, the technical solution of the present application has the following beneficial effects:
[0017] 1. In the present application, a first nano-coating is provided on the surface of the concrete pile body, a photocurable nano-sheet is provided on the first nano-coating, and a second nano-coating is provided on the photocurable nano-sheet, so as to form a high-strength, high-adhesion, high-temperature-resistant and seamless-sealed anti-corrosion and insulation sleeve on the surface of the concrete pile body, thereby fundamentally preventing the penetration and convection of internal and external corrosion media or air, ensuring the long-term stability of the base material, and providing good anti-corrosion, protection and strengthening effects.
[0018] 2. In the present application, a reinforcing member is provided inside the concrete pile body. The reinforcing member includes a reinforcing bar, and a reinforcing bar for fixing the reinforcing bar is connected to the reinforcing bar. The reinforcing member is arranged inside the first nano-coating, so that the PHC precast concrete pile has good structural rigidity and use stability. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic structural diagram of a heavy anti-corrosion device for a PHC precast concrete pile in a preferred embodiment of the present invention;
[0020] Figure 2 It is a schematic structural diagram of a reinforcing member in a preferred embodiment of the present invention.
[0021] Reference numerals: 1. Concrete pile body; 2. First nano-coating; 3. Photocurable nano-sheet; 4. Second nano-coating; 5. Reinforcing bar; 6. Reinforcing bar. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.
[0023] Referring to Figure 1 - Figure 2 As shown, in a preferred embodiment of the present utility model, a heavy anti-corrosion device for PHC precast concrete piles includes a concrete pile body 1. A first nano-coating 2 is provided on the surface of the concrete pile body 1. A photocurable nano-sheet 3 is provided on the first nano-coating 2. A second nano-coating 4 is provided on the photocurable nano-sheet 3, realizing the formation of a high-strength, high-adhesion, high-temperature-resistant and seamless-sealed anti-corrosion and insulation sleeve on the surface of the concrete pile body, thereby fundamentally preventing the penetration and convection of internal and external corrosive media or air, ensuring the long-term stability of the base material, and providing good anti-corrosion, protection and strengthening effects. A reinforcing member is provided inside the concrete pile body 1. The reinforcing member includes a reinforcing rod 5, and a steel bar 6 for fixing the reinforcing rod 5 is connected to the reinforcing rod 5. The reinforcing member is arranged inside the first nano-coating 2, making the PHC precast concrete pile have good structural rigidity and service stability.
[0024] As a preferred embodiment of the present utility model, it may also have the following additional technical features: the thickness of the photocurable nano-sheet 3 is 1.75 - 1.85 mm; the first nano-coating 2 includes two layers, and the thickness of each layer of the first nano-coating is 0.07 - 0.08 mm; the second nano-coating 4 is an anti-corrosion coating, and the anti-corrosion coating includes two layers, and the thickness of each layer of the anti-corrosion coating is 0.04 - 0.6 mm. Thus, the heavy anti-corrosion device for PHC precast concrete piles has good anti-corrosion performance and anti-seepage performance; and the first nano-coating and the second nano-coating can repair the base material, facilitating the photocurable nano-sheet to effectively protect the base material. The photocurable nano-sheet is hybrid-composited by a variety of nano-scale corrosion-resistant and anti-seepage materials, and is a multi-functional photocurable fiber-reinforced composite material. And the photocurable nano-material is a special anti-seepage and strengthening inorganic nano-material with a hollow "bayberry type". Its superior particle morphology can form a nano-scale sealing protection net with extremely high chemical density and excellent mechanical properties on the surface and inner layer of the lining, and can isolate the penetration of molecules, ions and gases in the corrosive medium to the greatest extent, solving problems such as the peeling, falling off, swelling and cracking of the lining caused by rust return. At the same time, the photocurable nano-sheet is a double-layer supermolecular nano-material, having two lamellae with positive and negative charges, respectively having a strong repulsive effect on the cations and anions in the corrosive medium, and can effectively prevent the corrosive ions from contacting the base material.
[0025] In this embodiment, the reinforcing bars 5 are arranged in a T shape; the steel bars 6 are arranged in a ring shape, the inner diameter of the ring-shaped steel bars 6 is smaller than the diameter of the concrete pile body 1, and the steel bars 6 include several pieces, and several of the steel bars 6 are arranged at equal intervals. Several of the reinforcing bars 5 are provided between adjacent steel bars 6, and the reinforcing bars 5 are stainless steel round tubes; at the same time, several through holes for the reinforcing bars 5 to penetrate are formed in the steel bars 6, and grooves adapted to the tops of the T-shaped reinforcing bars 5 are provided outside the through holes; and positioning holes for fixing the T-shaped reinforcing bars are provided on the steel bars 6, and the positioning holes and the through holes are arranged at intervals. Thus, the structural strength of the PHC precast concrete pile can be enhanced.
[0026] The working principle of the present utility model: By providing a first nano-coating 2 on the surface of the concrete pile body 1, a photo-cured nano-sheet 3 is provided on the first nano-coating 2, and a second nano-coating 4 is provided on the photo-cured nano-sheet 3, an anti-corrosion and insulation sleeve with high strength, high adhesion, high temperature resistance and seamless sealing is formed on the surface of the concrete pile body, so as to fundamentally prevent the penetration and convection of internal and external corrosion media or air, ensure the long-term stability of the base material, and provide good anti-corrosion, protection and strengthening effects; and a reinforcing member is provided inside the concrete pile body 1, the reinforcing member includes a reinforcing bar 5, and a steel bar 6 for fixing the reinforcing bar 5 is connected to the reinforcing bar 5, and the reinforcing member is arranged inside the first nano-coating 2, so that the PHC precast concrete pile has good structural rigidity and service stability, and improves the anti-corrosion performance and service life of the PHC precast concrete pile.
[0027] On the premise of not causing conflicts, those skilled in the art can freely combine and superimpose the above-mentioned additional technical features.
[0028] It can be understood that the present utility model is described through some embodiments. As is known to those skilled in the art, without departing from the spirit and scope of the present utility model, various changes or equivalent replacements can be made to these features and embodiments. In addition, under the teaching of the present utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present utility model.
Claims
1. A PHC precast concrete pile heavy-duty anti-corrosion device, characterized in that: It comprises a concrete pile body, wherein a first nano coating is arranged on the surface of the concrete pile body, a photocurable nano sheet is arranged on the first nano coating, and a second nano coating is arranged on the photocurable nano sheet; a reinforcement is arranged inside the concrete pile body, wherein the reinforcement comprises a reinforcement rod, wherein the reinforcement rod is connected to a steel bar for fixing the reinforcement rod, and the reinforcement is arranged inside the first nano coating.
2. The PHC precast concrete pile heavy-duty anti-corrosion device according to claim 1 is characterized in that: The thickness of the photocurable nanosheet is 1.75-1.85 mm.
3. The PHC precast concrete pile heavy-duty anti-corrosion device according to claim 1 is characterized in that: The first nano coating layer includes two layers, and the thickness of each layer of the first nano coating layer is 0.07-0.08 mm.
4. The PHC precast concrete pile heavy-duty anti-corrosion device according to claim 1 is characterized in that: The second nano coating is an anti-corrosion coating, which includes two layers, and the thickness of each layer of the anti-corrosion coating is 0.04-0.6 mm.
5. The PHC precast concrete pile heavy-duty anti-corrosion device according to claim 1 is characterized in that: The reinforcing rods are arranged in a T shape.
6. The PHC precast concrete pile heavy-duty anti-corrosion device according to claim 5 is characterized in that: The steel bars are arranged in a ring shape, and the steel bars include a plurality of steel bars, the plurality of steel bars are arranged at equal intervals, and a plurality of reinforcing rods are provided between adjacent steel bars.
7. The PHC precast concrete pile heavy-duty anti-corrosion device according to claim 6 is characterized in that: The steel bar is provided with a plurality of through holes for the reinforcing rod to pass through, and the periphery of the through holes is provided with a groove matched with the top of the T-shaped reinforcing rod.
8. The PHC precast concrete pile heavy-duty anti-corrosion device according to claim 7 is characterized in that: The steel bar is provided with a positioning hole for fixing the T-shaped reinforcing rod, and the positioning hole and the through hole are arranged at intervals from each other.
9. The PHC precast concrete pile heavy-duty anti-corrosion device according to claim 6 is characterized in that: The inner diameter of the annular steel bar is smaller than the diameter of the concrete pile body.
10. The PHC precast concrete pile heavy-duty anti-corrosion device according to claim 1 is characterized in that: The reinforcing rod is a stainless steel round tube.