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Formula for improving effective prestress of concrete tubular pile

A concrete pipe pile and prestressing technology, which is applied in the field of pipe pile manufacturing, can solve problems such as the inability of the effective prestress value to be satisfied, and achieve the effects of improving the effective prestressing, reasonable material collocation and low manufacturing cost.

Inactive Publication Date: 2014-01-01
TUBULAR PILE BRANCH OF ANHUI FUQIANG CONCRETE PILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the manufacturing process of concrete pipe piles, the effective prestress of concrete also determines the structural strength of concrete pipe piles, the size of the anti-cracking moment and the quality of the surface after the pipe piles are formed, and the existing formula of concrete pipe piles and The effective prestress value of concrete pipe piles made by its processing technology is generally distributed in the range of 4.0-6.0N / mm 2 , for those important occasions, the effective prestress value cannot be satisfied, and it is necessary to further improve the batching of concrete pipe piles to improve its effective prestress

Method used

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  • Formula for improving effective prestress of concrete tubular pile
  • Formula for improving effective prestress of concrete tubular pile
  • Formula for improving effective prestress of concrete tubular pile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A formula for improving the effective prestress of concrete pipe piles, the formula includes cement, quartz sand, stone, tartrate, mixed additives and water, and the mass percentage of each component is as follows:

[0016]

[0017] The mixed additive includes sodium chlorate, sodium carbonate and quicklime, and the sodium chlorate, sodium carbonate and quicklime are mixed according to the ratio of 2:2:1.5.

[0018] The effect of using this ratio is as follows:

[0019] Pipe pile outer diameter Wall thickness Effective prestress

[0020] 400mm 95mm 8.1N / mm 2

[0021] The effect of using common pipe pile material ratio is as follows:

[0022] Pipe pile outer diameter Wall thickness Effective prestress

[0023] 400mm 95mm 4.0N / mm 2

[0024] From the comparison of the above two sets of data, it can be seen that under the same outer diameter and wall thickness, the effect of the pipe pile after adopting this ratio has a significant improvement in the effective pres...

Embodiment 2

[0026] A formula for improving the effective prestress of concrete pipe piles, the formula includes cement, quartz sand, stone, tartrate, mixed additives and water, and the mass percentage of each component is as follows:

[0027]

[0028] The mixed additive includes sodium chlorate, sodium carbonate and quicklime, and the sodium chlorate, sodium carbonate and quicklime are mixed according to the ratio of 2:2:1.5.

[0029] The effect of using this ratio is as follows:

[0030] Pipe pile outer diameter Wall thickness Effective prestress

[0031] 500mm 100mm 8.25N / mm 2

[0032] The effect of using common pipe pile material ratio is as follows:

[0033] Pipe pile outer diameter Wall thickness Effective prestress

[0034] 500mm 100mm 6.0N / mm 2

[0035] From the comparison of the above two sets of data, it can be seen that under the same outer diameter and wall thickness, the effect of the pipe pile after adopting this ratio has a significant improvement in the effective p...

Embodiment 3

[0037] A formula for improving the effective prestress of concrete pipe piles, the formula includes cement, quartz sand, stone, tartrate, mixed additives and water, and the mass percentage of each component is as follows:

[0038]

[0039] The mixed additive includes sodium chlorate, sodium carbonate and quicklime, and the sodium chlorate, sodium carbonate and quicklime are mixed according to the ratio of 2:2:1.5.

[0040] The effect of using this ratio is as follows:

[0041] Pipe pile outer diameter Wall thickness Effective prestress

[0042] 600mm 110mm 8.5N / mm 2

[0043] The effect of using common pipe pile material ratio is as follows:

[0044] Pipe pile outer diameter Wall thickness Effective prestress

[0045] 600mm 110mm 8.0N / mm 2

[0046] From the comparison of the above two sets of data, it can be seen that under the same outer diameter and wall thickness, the effect of the pipe pile after adopting this ratio has a significant improvement in the effective pr...

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Abstract

The invention relates to a formula for improving the effective prestress of a concrete tubular pile. The formula contains the following ingredients in percentage by mass: 14-17% of cement, 30-40% of quartz sand, 23-25% of stone, 5-10% of tartrate, 10-15% of mixed additives and 6-8% of water. The mixed additives contain sodium chlorate, sodium carbonate and quicklime, wherein sodium chlorate, sodium carbonate and quicklime are mixed according to the ratio of 2: 2: 1.5. The formula has the advantages of reasonable material proportion, low preparation cost and the like, the effective prestress of the concrete tubular pile can be improved, the forming quality of the concrete tubular pile is improved, and the service life of the tubular pile is prolonged.

Description

technical field [0001] The invention relates to the technical field of pipe pile manufacture, in particular to a formula for improving the effective prestress of concrete pipe piles. Background technique [0002] With the continuous development of the construction industry, the shape of the building is also constantly updated, and the requirements for building materials, especially concrete pipe piles, are also getting higher and higher. In the manufacturing process of concrete pipe piles, the effective prestress of concrete also determines the structural strength of concrete pipe piles, the size of the anti-cracking moment and the quality of the surface after the pipe piles are formed, and the existing formula of concrete pipe piles and The effective prestress value of concrete pipe piles made by its processing technology is generally distributed in the range of 4.0-6.0N / mm 2 , for those important occasions, the effective prestress value cannot be satisfied, and it is nece...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00
Inventor 胡德云
Owner TUBULAR PILE BRANCH OF ANHUI FUQIANG CONCRETE PILE
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