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Pumped concrete and production method thereof

A production method and technology for pumping concrete, applied in the field of concrete, can solve the problem of non-solidification of pumping agent concrete, and achieve the effects of high early strength, speeding up construction progress and reducing cost

Inactive Publication Date: 2010-06-23
ANGANG MINE CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the pumping agent used in the prior art does not solidify the concrete, the present invention provides a raw material composition and production method for preparing pumped concrete using a high-efficiency water reducer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A pumping concrete is prepared by mixing the following components in proportion by weight: 250 parts of cement, 50 parts of superfine slag powder, 50 parts of fly ash, 1000 parts of gravel, 680 parts of sand, 150 parts of water, and 2.5 parts of high-efficiency water reducer.

[0019] A production method of pumping concrete, the technical process of the method is:

[0020] (1) take each raw material by above-mentioned weight ratio;

[0021] (2) Put the weighed raw materials together and stir;

[0022] (3) Detect and adjust the proportioning ratio to the mixed material after stirring until it meets the requirements;

[0023] (4) Transport to the construction site and provide it to the concrete pump truck.

Embodiment 2

[0025] A pumping concrete, which is made by mixing the following components in proportion by weight: 300 parts of cement, 80 parts of superfine slag powder, 55 parts of fly ash, 1050 parts of gravel, 700 parts of sand, 180 parts of water, and 3 parts of superplasticizer.

[0026] Production method is the same as embodiment one.

Embodiment 3

[0028] A pumping concrete, which is made by mixing the following components in proportion by weight: 390 parts of cement, 120 parts of superfine slag powder, 60 parts of fly ash, 1100 parts of crushed stone, 750 parts of sand, 200 parts of water, and 4 parts of superplasticizer.

[0029] Production method is the same as embodiment one.

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PUM

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Abstract

The invention relates to pumped concrete and a production method thereof. The pumped concrete is prepared by mixing the following components in part by weight: 25 to 390 parts of concrete, 50 to 120 parts of super-fine slag powder, 50 to 60 parts of flyash, 1,000 to 1,100 parts of crushed stones, 680 to 750 parts of sand, 150 to 200 parts of water and 2.5 to 4 parts of water reducing agent. Various raw materials are weighed in proportion and are stirred to regulate the proportion, and after the mixed raw materials are qualified, the mixed raw materials are transported to a construction site and are supplied to a concrete pump truck for conveying. The pumped concrete produced by the method has the advantages of high intensity, quick solidification and low cost, and better meets the requirements of various construction units.

Description

technical field [0001] The invention relates to a concrete, in particular to a pumping concrete and a production method thereof. Background technique [0002] In the ready-mixed concrete industry, almost all admixtures used in the production of pumped concrete by mixing plants are pumping agents. Due to the many components of the pumping agent, it is composed of water reducing, retarding, plastic retaining, air-entraining and other components. Sometimes the adaptability of cement and pumping agent is not good, which will cause serious quality problems. That is, the concrete will not solidify for 3-5 days, sometimes longer. The main reason is that the retarding component in the pumping agent is superimposed on a certain retarding component in the cement, or the over-mixing of the pumping agent causes the pumped concrete to not solidify for a long time after pouring, which not only affects the construction period, but also leaves serious problems. In order to prevent the lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B18/12C04B18/08C04B14/02C04B14/06
CPCY02W30/91
Inventor 武成兵周志华陶贵闪丁文
Owner ANGANG MINE CONSTR
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