Concrete for shortening the steam curing period of cement poles

A technology for steam curing and cement poles, applied in the field of concrete, can solve the problems of low pole production output and long curing time, and achieve the effects of improving 28d strength, prolonging initial setting time, and reducing production costs.

Active Publication Date: 2018-03-13
HUBEI CHANG YAOXIN MATERIALS LIMITED BY SHARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The most critical thing is that the traditional pole concrete needs a long curing time to achieve the corresponding demoulding strength, which usually takes 6-7 hours. A set of molds can only produce 2 poles a day. It can be seen that the production output of poles is not high. high

Method used

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Embodiment Construction

[0011] In order to make the technical means realized by the present invention, the creative features, the purpose and the effect to be achieved more clearly and easy to understand, the present invention will be further elaborated below in conjunction with the specific embodiments:

[0012] The invention provides a concrete for shortening the steam curing period of cement poles. The concrete is made from the following raw materials in proportion by mass: 250-280 parts of cement, 35-50 parts of mineral powder, and 35-50 parts of fly ash 140-160 parts of residual slurry, 640-670 parts of sand, 1150-1220 parts of gravel, 64-114 parts of water, and 2.5-4 parts of water reducing agent; wherein, the residual slurry is released immediately after the completion of the pole centrifugation of fresh slurry.

[0013] For the above formula, first of all, in terms of fluidity, a part of fly ash is used to replace a part of the water reducing agent, which not only ensures that the fluidity of...

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Abstract

The invention provides a concrete for shortening steam curing periods of cement electric poles. The concrete is prepared from the following raw materials in mass distribution ratio: 250-280 parts of cement, 35-50 parts of mineral powder, 35-50 parts of coal ash, 140-160 parts of residual grout, 640-670 parts of sand, 1150-1220 parts of gravels, 64-114 parts of water and 2.5-4 parts of a water reducer, wherein the residual grout is fresh grout immediately discharged after the centrifugation of electric poles is finished. The concrete for shortening steam curing periods of cement electric poles has the outstanding advantages of being moderate in flow property, proper in initial setting time, short in curing time and high in demoulding strength.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a concrete for shortening the steam curing period of cement poles. Background technique [0002] The traditional pole concrete is generally plain concrete without any additives or a small amount of water reducing agent added to the concrete. The forming principle of pole concrete is to drive the steel mold to rotate through a high-speed rotating centrifuge. Under the action of centrifugal force, the concrete is compacted and the annular cavity state of the pole is formed. In the process of high-speed centrifugation, stones, sand and cement with a large specific gravity will be accumulated in the outer layer of the annular cavity, while water with a light specific gravity will be placed in a large amount in the inner layer of the annular cavity. Therefore, the pole concrete must have a certain fluidity: if the fluidity is too small, it is extremely difficult to fill the mold, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B18/08C04B14/02C04B14/06C04B18/16
CPCC04B28/04C04B2201/05C04B2201/50C04B18/08C04B14/02C04B14/068C04B24/24C04B18/167Y02W30/91
Inventor 杨新峰吕伟赵楚鑫陈吉思陈浩然
Owner HUBEI CHANG YAOXIN MATERIALS LIMITED BY SHARE
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