Concrete annular pole and preparation method thereof

A technology of concrete and powder concrete, which is applied in the field of building materials to achieve the effects of good freeze-thaw resistance and acid, alkali and salt corrosion resistance, low cost and reduced weight

Active Publication Date: 2015-11-04
黄贺明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to provide a concrete ring-shaped electric pole with light weight, high strength, good impact toughness, small temperature difference effect ...

Method used

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  • Concrete annular pole and preparation method thereof
  • Concrete annular pole and preparation method thereof
  • Concrete annular pole and preparation method thereof

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preparation example Construction

[0033] Correspondingly, the embodiment of the present invention also provides a method for preparing a concrete ring-shaped electric pole, including the following steps:

[0034] S01. take each component by the formula of above-mentioned concrete annular electric pole;

[0035] S02. After mixing steel fiber, polypropylene fiber and river sand, Portland cement, silicon powder and mineral powder are added to further mix to form a mixed material, and high-efficiency water reducer and water are added to the mixed material to form a superplasticizer. high performance powder concrete;

[0036] S03. The above-mentioned ultra-high performance powder concrete is evenly distributed in the steel mesh concrete pole mold with a protective layer thickness of 8-12 mm through a distributing machine, and is densely formed by a centrifugal process. After a static stop for 1-2 hours, it is placed in a steam curing kiln The temperature is raised in the middle, and the curing temperature is 85-95...

Embodiment 1

[0043] A concrete annular pole, comprising the following formula components in the following parts by weight:

[0044]

[0045] Wherein, the Portland cement is 52.5 grade Portland cement with a particle size of 30-60 μm; the particle size of the silica fume is 0.18 μm, wherein SiO 2 The mass percentage content is more than 85%; the mineral powder is above S95 grade mineral powder with a particle size of 10-30 μm; the particle size of the river sand is 0.16-4.75 mm; the water reducing agent of the high-efficiency water reducer Rate > 30%. The steel mesh is made of Ф≥3.0mm prestressed steel wire as the main reinforcement and Ф≥2.0mm high-strength wire as the circumferential reinforcement. The thickness of the protective layer is 8-12 mm, and the distance between the two ends of the steel mesh is 50-100 cm. 10-30mm, and the circumferential rib spacing at other positions is 40-80mm.

[0046] The preparation method of above-mentioned concrete annular pole, comprises the steps:...

Embodiment 2

[0051] A concrete annular electric pole, comprising the following formula components in the following parts by weight: 550 parts of Portland cement;

[0052]

[0053] Wherein, the Portland cement is 52.5 grade Portland cement with a particle size of 30-60 μm; the particle size of the silica fume is 0.18 μm, wherein SiO 2 The mass percentage content is more than 85%; the mineral powder is above S95 grade mineral powder with a particle size of 10-30 μm; the particle size of the river sand is 0.16-4.75 mm; the water reducing agent of the high-efficiency water reducer Rate > 30%. The steel mesh is made of Ф≥3.0mm prestressed steel wire as the main reinforcement and Ф≥2.0mm high-strength wire as the circumferential reinforcement. The thickness of the protective layer is 8-12 mm, and the distance between the two ends of the steel mesh is 50-100 cm. 10-30mm, and the circumferential rib spacing at other positions is 40-80mm.

[0054] The preparation method of above-mentioned conc...

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Abstract

The invention belongs to the field of building materials, and provides a concrete annular pole and a preparation method thereof. The concrete annular pole is composed of powder concrete with ultra-high performance and mesh reinforcement, and the powder concrete with the ultra-high performance comprises, by weight, 500-650 parts of portland cement, 140-160 parts of ganister sand, 80-90 parts of mineral powder, 1,250-1,400 parts of river sand, 18-22 parts of efficient water reducing agents, 135-160 parts of water, 0.4-0.6 part of polypropylene fibers and 90-150 parts of steel fibers. The concrete annular pole has the advantages of being good in carbonization resistance, good in freeze thawing resistance, high in compressive strength, good in cracking resistance, low in weight, capable of being used as a common pole, part of prestress poles, prestress poles and the like, and suitable for building various power grids and the like.

Description

technical field [0001] The invention belongs to the field of building materials, in particular to a concrete ring-shaped electric pole and a preparation method thereof. Background technique [0002] Active powder concrete is a new type of concrete material with ultra-high strength, high toughness, high durability and stable volume developed by Western countries such as France in the early 1990s. The performance of this material is divided into 200MPa and 500MPa, 800MPa class. The main principle is to use the bulk density principle to design the concrete material components, increase the interface strength and density by reducing the volume ratio between particles, and adjust the flexural performance through steel fibers. At present, the main domestic application and promotion level is 200MPa, the performance compressive index can reach 120-200MPA, the flexural strength can reach 14-40MPA, the elastic modulus is above 45GPa, the impermeability is generally above P30, and the...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B14/48C04B16/06C04B14/06C04B18/12
CPCY02W30/91
Inventor 黄贺明刘福财王鸣珂李斌周思晴孙俊阳郭宗林
Owner 黄贺明
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