Multi-layer lightweight RPC (Reactive Powder Concrete) electric pole and manufacturing method thereof

A multi-layer, electric pole technology, applied in the field of power transmission and transformation projects, can solve the problems of short service life, weak resistance, insufficient strength of electric poles, etc., and achieve the goal of improving corrosion resistance, increasing service life, and promoting construction and transformation Effect

Inactive Publication Date: 2018-07-27
四川省川铁枕梁工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a multi-layer lightweight RPC pole and its preparation method, which can effectively solve the problem of insufficient strength of existing poles, weak resistance in harsh environments, and short service life. question

Method used

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  • Multi-layer lightweight RPC (Reactive Powder Concrete) electric pole and manufacturing method thereof

Examples

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Effect test

Embodiment 1

[0035] A method for preparing a multi-layer lightweight RPC pole, comprising the following steps:

[0036] (1) Put the RPC cloth into the pipe mold, clean and close the mold after the cloth is completed;

[0037] (2) Centrifuge at 50r / min for 300s, then centrifuge at 1000r / min for 240s to obtain an outer protective layer with a thickness of 5mm;

[0038] (3) After the outer protective layer of the pole is centrifugally formed, use RPC as the raw material, add steel fibers accounting for 3% of its volume to it, stir, and then use the high-pressure concrete pump to pump the material in the outer protective layer , after the fabric is finished, carry out the centrifugal forming of the core layer, wherein, the centrifugation condition is: centrifuge at 50r / min for 30s, and then centrifuge at 1000r / min for 240s to obtain a core layer with a thickness of 15mm;

[0039] (4) After the core layer of the pole is centrifugally formed, the inner protective layer of the pole needs to be s...

Embodiment 2

[0042]A method for preparing a multi-layer lightweight RPC pole, comprising the following steps:

[0043] (1) Put the RPC cloth into the pipe mold, clean and close the mold after the cloth is completed;

[0044] (2) Centrifuge at 100r / min for 150s, then centrifuge at 600r / min for 150s to obtain an outer protective layer with a thickness of 5mm;

[0045] (3) After centrifugally forming the outer protective layer of the pole, use RPC as the raw material, add steel fibers accounting for 4% of its volume to it, stir, and then use the high-pressure concrete pump to pump the material in the outer protective layer , after the fabric is finished, carry out the centrifugal molding of the core layer, wherein, the centrifugation condition is: centrifuge at 100r / min for 100s, and then centrifuge at 800r / min for 150s to obtain a core layer with a thickness of 30mm;

[0046] (4) After the outer protective layer and the core layer are formed, let stand for 6h, then raise the temperature to ...

Embodiment 3

[0048] A method for preparing a multi-layer lightweight RPC pole, comprising the following steps:

[0049] (1) Put the RPC cloth into the pipe mold, clean and close the mold after the cloth is completed; and centrifuge at 120r / min for 60s, and then centrifuge at 300r / min for 480s to obtain an outer protective layer with a thickness of 5mm;

[0050] (2) After centrifugally forming the outer protective layer of the pole, use RPC as the raw material, add steel fibers accounting for 2% of its volume to it, stir, and then use the high-pressure concrete pump to pump the material in the outer protective layer , after the fabric is finished, carry out the centrifugal molding of the core layer, wherein, the centrifugation condition is: centrifuge 180s under 120r / min, then centrifuge 360s under 300r / min, obtain the core layer that thickness is 25mm;

[0051] (4) After the core layer of the pole is centrifugally formed, the inner protective layer of the pole needs to be set, and the RPC ...

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Abstract

The invention discloses a multi-layer lightweight RPC (Reactive Powder Concrete) electric pile and a manufacturing method thereof. The electric pole is of an annular hollow shape and comprises an outer protecting layer, a core layer and an inner protecting layer which are sequentially arranged from outside to inside. The manufacturing method comprises the steps of (1) manufacturing the outer protecting layer; (2) manufacturing the core layer in the outer protecting layer; (3) manufacturing the inner protection layer in the core layer; and (4) standing and maintaining to obtain the multi-layerlightweight RPC electric pole. According to the RPC electric pole manufactured by the method, the inner protecting layer and the outer protecting layer which are capable of steel fibers in RPC from rusting are arranged; the electric pole has the advantages of being resistant to abrasion, and light in weight; the service life is long; and the electric pole is suitable for situations with various severe conditions.

Description

technical field [0001] The invention belongs to the field of power transmission and transformation engineering, and in particular relates to a multilayer lightweight RPC pole and a preparation method thereof. Background technique [0002] Concrete poles are widely used in projects such as electric power, communication and catenary overhead line lighting pillars and signal poles, and their environments are quite different. Concrete poles have the advantages of high strength and good durability in a dry and non-corrosive environment. The general life span is about 30 years, and the maximum can exceed 50 years. [0003] In harsh environments such as paddy fields, reed ponds, swamps, saline-alkali lands, and coastal areas, because the concrete poles are located at the junction of the ground or water surface and the atmosphere, they will also be subjected to dry-wet cycles, freeze-thaw cycles, and cold The common influence of unfavorable conditions such as heat alternation leads...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B21/30B28B21/56B28B11/24
CPCB28B21/30B28B11/245B28B21/56
Inventor 杨奉源彭丙杰李彬
Owner 四川省川铁枕梁工程有限公司
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