Construction method of pumping concrete

A technology for pumping concrete and construction methods, which is applied in the processing of building materials, construction, building construction, etc. It can solve the problems of fewer pipelines and blockages, and achieve the effects of reducing consumption, reducing resistance, and not being easy to block

Inactive Publication Date: 2016-04-20
YANAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a construction method for pumping concrete, which solves the problem of blockage of the conveying pipeline caused by the low water content of the concrete when pumping concrete

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The required concrete strength is C24.

[0035] Step 1, configure pumped concrete;

[0036] The pumped concrete is composed of the following raw materials in terms of mass percentage: 14% cement, 26% sand, 50% gravel, 10% water, and the sum of the mass percentages of the above components is 100%;

[0037] Step 2, configuring dry hard concrete;

[0038] Dry hard concrete is composed of the following raw materials in terms of mass percentage: 14% cement, 29% sand, 50% gravel, 7% water, and the sum of the mass percentages of the above components is 100%;

[0039] Step 1 and Step 2 use 32.5 grade ordinary Portland cement.

[0040] Step 3, pouring;

[0041] Pour the pumped concrete configured in step 1 and the dry hard concrete configured in step 2 respectively according to the ratio of 3.5:1;

[0042] Step 4, vibration;

[0043] Use the concrete vibrator to vibrate the pumped concrete and dry hard concrete poured in step 3, that is, the construction of the pumped concr...

Embodiment 2

[0045] The required concrete strength is C26.

[0046] Step 1, configure pumped concrete;

[0047] The pumped concrete is composed of the following raw materials in terms of mass percentage: 15% cement, 28% sand, 48% gravel, 9% water, and the sum of the mass percentages of the above components is 100%;

[0048] Step 2, configuring dry hard concrete;

[0049] Dry hard concrete is composed of the following raw materials in terms of mass percentage: 15% cement, 27% sand, 51% gravel, 7% water, and the sum of the mass percentages of the above components is 100%;

[0050] Step 1 and Step 2 use 42.5 grade ordinary Portland cement.

[0051] Step 3, pouring;

[0052] Pour the pumped concrete configured in step 1 and the dry hard concrete configured in step 2 respectively according to the ratio of 3.5:1;

[0053] Step 4, vibration;

[0054] Use the concrete vibrator to vibrate the pumped concrete and dry hard concrete poured in step 3, that is, the construction of the pumped concre...

Embodiment 3

[0056] The required concrete strength is C30.

[0057] Step 1, configure pumped concrete;

[0058] The pumped concrete is composed of the following raw materials in terms of mass percentage: 16% cement, 27% sand, 48% gravel, 9% water, and the sum of the mass percentages of the above components is 100%;

[0059] Step 2, configuring dry hard concrete;

[0060] Dry hard concrete is composed of the following raw materials in terms of mass percentage: 16% cement, 27% sand, 50% gravel, 7% water, and the sum of the mass percentages of the above components is 100%;

[0061] Step 1 and Step 2 use 42.5 grade ordinary Portland cement.

[0062] Step 3, pouring;

[0063] According to the ratio of 4:1, respectively pour the pumped concrete configured in step 1 and the dry hard concrete configured in step 2;

[0064] Step 4, vibration;

[0065] Use the concrete vibrator to vibrate the pumped concrete and dry hard concrete poured in step 3, that is, the construction of the pumped concret...

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Abstract

The invention discloses a construction method for pumping concrete. The construction method for pumping concrete specially comprises the following steps that firstly, pumped concrete is prepared; secondly, no slump concrete is prepared; thirdly, the pumped concreted prepared in the first step and the no slump concrete prepared in the second step are respectively poured at the ratio of 3.5-4.5:1; fourthly, compacting is conducted, and then concrete pumping is completed. According to the construction method for pumping concrete, compared with the prior art, the water content of the concrete pumped according to the construction method is higher, a conveying pipeline is not prone to blockage, the resistance existing during conveyance can be reduced, and the energy consumption of a machine can be reduced.

Description

technical field [0001] The invention belongs to the technical field of building construction and relates to a construction method for pumping concrete. Background technique [0002] There are many ways to transport and pour concrete, and the pouring method depends on the transportation equipment. Commonly used transportation equipment includes trolleys, trucks, mixer trucks, hoists, tower cranes, belt conveyors and concrete delivery pumps. Pumping sodium fluorosilicate concrete is a fast-growing and widely used method. Pumping concrete is different from the traditional concrete construction method. Under the power of the concrete pump, the concrete is transported along the delivery pipeline, and the construction is poured directly at the outlet of the pipeline. At present, my country has widely used pumped concrete in the construction of high-rise buildings and high-height concrete. With the use of this new technology, its social and economic benefits in social and economi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G21/02C04B28/04
Inventor 李盛斌郭华斌徐健
Owner YANAN UNIV
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