High-strength light-weight wind-resistant electric wire pole and manufacturing method thereof

Abstract

The application relates to the field of power facilities, in particular to a high-strength light-weight wind-resistant electric wire pole and a manufacturing method thereof, which comprises a foundation cage and a pole body composed of a concrete material and a steel reinforcement cage; the pole body is connected with the foundation cage through the steel reinforcement cage; the concrete material is made of the following raw materials in parts by weight: cement 80-100 parts, EPS granules modified by geopolymer 30-50 parts, 12 stone 80-100 parts, river sand 130-150 parts, silica fume 10-20 parts, fly ash 20-30 parts, hydroxypropyl methyl cellulose ether 0.1-0.5 parts, polycarboxylic acid water reducing agent 0.5-1 part, reinforcing fiber 10-20 parts and water 40-50 parts; the prepared concrete material has good mechanical properties and is suitable for manufacturing electric wire poles; the prepared electric wire pole is light in weight, high in strength and excellent in wind resistance and anti-falling performance.

Description

Technical Field

[0001] The present invention relates to the field of electric power facilities, and in particular to a high-strength, lightweight, wind-resistant electric pole and a manufacturing method thereof. Background Art

[0002] As the main line support tower structure for my country's power grid construction, concrete poles have the advantages of low cost and long life. They are still the main supporting structure for short-distance power transmission lines. Whether in cities, villages, mountains or fields, as long as short-distance power transmission lines are erected, concrete poles are indispensable. The current concrete poles basically have no wind and fall resistance function. When they are installed, they are simply dug and filled. However, with the increase in extreme weather, every time a typhoon passes or a storm passes, many poles can always be seen being pulled out of the ground or broken in half, causing paralysis of power facilities, traffic jams and even casualties. Summary of the Invention

[0003] Purpose of the invention: In order to solve the above technical problems, the present invention proposes a high-strength, lightweight, wind-resistant utility pole and a manufacturing method thereof.

[0004] The technical solutions adopted are as follows:

[0005] A high-strength, lightweight, wind-resistant electric pole comprises a foundation cage and a pole body formed by a composite of concrete material and a steel frame;

[0006] The rod body is connected to the foundation cage through the steel frame;

[0007] The concrete material is made of the following raw materials in parts by weight:

[0008] 80-100 parts of cement, 30-50 parts of geopolymer modified EPS particles, 80-100 parts of 12-gravel, 130-150 parts of river sand, 10-20 parts of silica fume, 20-30 parts of fly ash, 0.1-0.5 parts of hydroxypropyl methylcellulose ether, 0.5-1 parts of polycarboxylate water reducer, 10-20 parts of reinforcing fiber, and 40-50 parts of water.

[0009] Furthermore, the preparation method of the geopolymer-modified EPS particles is as follows:

[0010] Spray the EPS particles with the binder solution to evenly moisten the surface, then immerse them in the geopolymer slurry, take them out and keep them warm at 50-60℃ for 48-72h.

[0011] Furthermore, the particle size of the EPS particles is 1-5 mm.

[0012] Furthermore, the binder solution includes polyvinyl alcohol and a silane coupling agent.

[0013] Further, the geopolymer slurry comprises fly ash, metakaolin and alkali activator.

[0014] The mass ratio of the fly ash, metakaolin and alkali activator is 3-5:3-5:0.5-1.

[0015] Further, the alkali activator is water glass with modulus of 1.2-1.8.

[0016] Further, the reinforcing fiber is any one of steel fiber, boron fiber, glass fiber, polyethylene fiber and basalt fiber, and preferably is basalt fiber.

[0017] Further, the basalt fiber is subjected to organic silicon resin modification treatment.

[0018] Further, the organic silicon resin is methyl silicon resin, methyl phenyl silicon resin or phenyl silicon resin.

[0019] Further, the preparation method of the basalt fiber is as follows:

[0020] The organic silicon resin is added dropwise into ammonia water under stirring, and a sol is obtained after ultrasonic treatment under continuous stirring, and then the basalt fiber is immersed in the sol and dried.

[0021] The beneficial effects of the present application are:

[0022] The present application provides a high-strength lightweight wind-resistant electric wire pole, the foundation cage can bear the weight of the electric wire pole, keep the structure stable and safe, especially in strong wind, will not be blown down and produce safety hidden trouble, the concrete material uses EPS particles as aggregate to reduce the dead weight to the maximum extent, but due to the poor cementing property of EPS particles, the interface transition zone defect exists in the concrete, the geopolymer is used to modify it, a three-dimensional network gel body mainly formed by covalent bond is formed, which is tightly combined with the interface of the remaining aggregate, and similar transition zone does not appear, so that the concrete material has higher mechanical properties, the basalt fiber can play the role of toughness and reinforcement on the concrete structure, but calcium hydroxide generated in the cement hydration process and sodium hydroxide generated by the reaction of sodium sulfate and free calcium hydroxide will cause corrosion to the basalt fiber and reduce its interlocking and toughening effect, the organic silicon resin can improve its waterproof and alkali corrosion resistance after modification, and the mechanical strength of the electric wire pole is maintained to the maximum extent, the prepared concrete material has good mechanical properties, is suitable for making electric wire pole, and the prepared electric wire pole has light dead weight, high strength and excellent wind-resistant and anti-falling performance. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a structural schematic view of the foundation cage in example 1.

[0024] Figure 2A structure diagram of the flange plate in Example 1;

[0025] Figure 3 A structure diagram of the pole body in Example 1;

[0026] The reference numerals in the figure respectively represent:

[0027] 1-flange plate, 2-steel bar, 3-concrete material, 4-steel reinforcement cage, 5-A hole, 6-B hole. DETAILED DESCRIPTION

[0028] Unless otherwise specified in the examples, the conventional conditions or the conditions recommended by the manufacturer are used. Unless otherwise specified, the reagents or instruments used are conventional products that can be purchased on the market. The techniques not mentioned in the present application are referred to the prior art.

[0029] Example 1:

[0030] Reference Figure 1 A high-strength lightweight wind-resistant electric wire pole, comprising a foundation cage and a pole body composed of a concrete material (3) and a steel reinforcement cage (4), the foundation cage comprises a plurality of flange plates (1) arranged at intervals, the flange plate (1) is provided with a plurality of A holes (5) and B holes (6), the steel bar (2) is arranged in the A hole (5), the flange plates (1) arranged at intervals are welded and fixed into one body through the steel bars (2), the size of the B hole (6) is consistent with that of the steel reinforcement cage (4), the steel reinforcement cage (4) in the pole body can extend downward into the B hole (6), so that the pole body is connected with the foundation cage through the steel reinforcement cage (4);

[0031] The concrete material (3) is made of the following raw materials by weight:

[0032] Cement 95 parts, geopolymer modified EPS particles 35 parts, 12 stone 90 parts, river sand 145 parts, silica fume 12 parts, fly ash 28 parts, hydroxypropyl methyl cellulose ether 0.5 parts, polycarboxylic acid water reducer 0.8 parts, reinforcing fiber 16 parts, water 45 parts.

[0033] The preparation method of the geopolymer modified EPS particles is as follows:

[0034] Take 100g polyvinyl alcohol and 5g silane coupling agent kh550 into 500mL ethanol aqueous solution (75%), heated, stirred and mixed uniformly to obtain a uniform binder solution, take 500g EPS particles with particle size of 1-5mm, spray the binder solution on the surface of the EPS particles, move while spraying, make the surface of the EPS particles wet evenly, adjust the modulus of sodium silicate to 1.6 with sodium hydroxide, cool to room temperature, then add fly ash, metakaolin, mix evenly to obtain geopolymer slurry, liquid-solid ratio is 3, mass ratio of fly ash and metakaolin is 1:5, immerse the EPS particles in the geopolymer slurry for 5min, take out and keep at 60℃ for 72h.

[0035] The reinforcing fiber is basalt fiber modified by organic silicon resin, and the preparation method is as follows:

[0036] Take 150mL TM10 methyl silicone resin, drop 45mL ammonia water under stirring, after dropping, ultrasonic stirring treatment for 8min to obtain sol, immerse the basalt fiber in it for treatment and dry.

[0037] Example 2:

[0038] The same as example 1, the difference is that the concrete material is made of the following raw materials by weight:

[0039] Cement 100 parts, geopolymer modified EPS particles 50 parts, 12 stone 100 parts, river sand 150 parts, silica fume 20 parts, fly ash 30 parts, hydroxypropyl methyl cellulose ether 0.5 parts, polycarboxylic acid water reducer 1 part, reinforcing fiber 20 parts, water 50 parts.

[0040] Example 3:

[0041] The same as example 1, the difference is that the concrete material is made of the following raw materials by weight:

[0042] Cement 80 parts, geopolymer modified EPS particles 30 parts, 12 stone 80 parts, river sand 130 parts, silica fume 10 parts, fly ash 20 parts, hydroxypropyl methyl cellulose ether 0.1 parts, polycarboxylic acid water reducer 0.5 parts, reinforcing fiber 10 parts, water 40 parts.

[0043] Example 4:

[0044] The same as example 1, the difference is that the concrete material is made of the following raw materials by weight:

[0045] Cement 100 parts, geopolymer modified EPS particles 50 parts, 12 stone 80 parts, river sand 150 parts, silica fume 10 parts, fly ash 30 parts, hydroxypropyl methyl cellulose ether 0.1 parts, polycarboxylic acid water reducer 1 part, reinforcing fiber 10 parts, water 50 parts.

[0046] Example 5:

[0047] The same as example 1, the difference is that the concrete material is made of the following raw materials by weight parts:

[0048] Cement 80 parts, geopolymer modified EPS particles 30 parts, 12 stone 100 parts, river sand 130 parts, silica fume 20 parts, fly ash 20 parts, hydroxypropyl methyl cellulose ether 0.5 parts, polycarboxylic acid water reducer 0.5 parts, reinforcing fiber 20 parts, water 40 parts.

[0049] Comparative example 1:

[0050] The same as example 1, the difference is that EPS particles are directly added without geopolymer modification.

[0051] Comparative example 2:

[0052] The same as example 1, the difference is that basalt fiber is directly added without organic silicon resin modification treatment.

[0053] Performance test:

[0054] ①The concrete material prepared in examples 1-5 and comparative examples 1-2 of the application is tested as a sample;

[0055] The test method is based on GB / T50081-2019 "Standard for test methods of physical and mechanical properties of concrete", and the compressive strength (28d), flexural strength (28d) and splitting tensile strength (28d) of the sample are detected;

[0056] The test results are shown in Table 1 below:

[0057] Table 1

[0058]

[0059]

[0060] From the above table 1, it can be seen that the concrete material prepared by the application has good mechanical properties, and is suitable for making cement poles.

[0061] ②The organic silicon resin modified basalt fiber prepared in examples 1-5 and comparative examples 1-2 of the application is tested as a sample, and the blank example is the basalt fiber without modification;

[0062] The sample is soaked in saturated calcium hydroxide solution for 28 days, and then the mass loss rate is tested, and the test results are shown in Table 2 below:

[0063] Table 2:

[0064]

[0065] The basalt fiber treated by the organic silicon resin modification process has good chemical stability to calcium hydroxide medium.

[0066] The above examples are only used to illustrate the technical solutions of the present application, but not limit it; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A high strength lightweight wind resistant electrical line pole characterized by, The rod body is composed of a foundation cage and a concrete material and a steel reinforcement cage; The rod body is connected with the foundation cage through the steel reinforcement cage; The concrete material is made of the following raw materials in parts by weight: Cement 80-100 parts, geopolymer modified EPS particles 30-50 parts, 12 stone 80-100 parts, river sand 130-150 parts, silica fume 10-20 parts, fly ash 20-30 parts, hydroxypropyl methyl cellulose ether 0.1-0.5 parts, polycarboxylic acid water reducing agent 0.5-1 part, reinforcing fiber 10-20 parts, water 40-50 parts; The preparation method of the geopolymer modified EPS particles is as follows: The EPS particles are sprayed with a binder solution, the surface is uniformly wetted, then they are immersed in a geopolymer slurry, and after being taken out, they are kept at 50-60℃ for 48-72h; The geopolymer slurry includes fly ash, metakaolin and alkali activator; The mass ratio of the fly ash, metakaolin and alkali activator is 3-5:3-5:0.5-1; The reinforcing fiber is basalt fiber; The basalt fiber is modified by organosilicon resin; The preparation method of the basalt fiber is as follows: Take organosilicon resin, under stirring, drop in ammonia water, continue to stir and ultrasonic treat to obtain sol, then immerse basalt fiber in the sol, dry it and it is ready.

2. The high strength light weight wind resistant electrical pole of claim 1 wherein, The particle size of the EPS particles is 1-5mm.

3. The high strength light weight wind resistant electrical pole of claim 1 wherein, The binder solution includes polyvinyl alcohol and silane coupling agent.

4. The high strength light weight wind resistant electrical pole of claim 1 wherein, The alkali activator is water glass with modulus of 1.2-1.8.

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