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Concrete pumping agent and preparation process thereof

A concrete pump and production process technology, applied in the field of concrete admixtures, can solve the problems of not being developed and reducing the amount of cement, and achieve the effect of saving resources, reducing the amount of cement, and reducing the amount of cement

Inactive Publication Date: 2021-08-20
天津市滨海金鹏建筑材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no pumping agent that can reduce the amount of cement and improve pumping performance during the pumping process.

Method used

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  • Concrete pumping agent and preparation process thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1: A concrete pumping agent, which is made by mixing the following raw materials in the mass proportion: 93% of tailings, 7% of slag, and 5% of grinding aid.

[0013] The grinding aid in this embodiment can help increase the grinding output and eliminate static electricity; the slag in this embodiment is an active substance that can improve the coagulation strength of concrete, and has the effect of eliminating static electricity.

Embodiment 2

[0014] Embodiment 2: A kind of manufacture craft of concrete pumping agent, is after tailings 93%, slag 7% and grinding aid 5% are mixed, put into double closed-circuit ball mill grinding system and grind, in grinding process In the experiment, the rotational speed of the double closed-circuit ball mill grinding system was set at 1200 rpm, so that the particles of 0.25-100 µm were obtained as the pumping agent.

[0015] The pumping agent in this embodiment is mixed in the concrete of different counterweights according to the specification of 50-80KG per cubic meter, and the comparison test after 7 days and 28 days is as follows:

[0016]

[0017] It can be concluded from the above table that adding 50-80KG per cubic meter of pumping agent to concrete instead of cement will not affect the strength of the test block, which is within the range of national standards.

[0018] The cement in the above experiment is PO42.5 cement, the mineral powder is S95 mineral powder, FA secon...

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Abstract

The invention discloses a concrete pumping agent which is prepared by mixing the following raw materials in percentage by mass: 93% of tailings, 7% of slag and 5% of a grinding aid. According to the invention, part of cement in commercial concrete can be effectively replaced, so that the cement consumption in the commercial concrete is effectively reduced; and the use amount of cement in constructional engineering every year can be reduced, so that the effects of energy conservation and emission reduction are achieved. According to the invention, the suitability of commercial concrete can be effectively improved, and the pumping performance of the concrete can be fundamentally improved. The tailings of the iron ore and the high-calcium stone are both waste utilization, and resources can be saved to the maximum extent.

Description

technical field [0001] The invention relates to the technical field of concrete admixtures, in particular to a concrete pumping agent and a manufacturing process thereof. Background technique [0002] Pumping concrete is to use concrete pump or pump truck to transport and pour concrete mixture along the delivery pipe. It is an effective way of transporting concrete mixture, with fast speed and less labor force, especially suitable for mass concrete and high-rise building concrete. Transportation and pouring. [0003] Concrete pumping agent is an admixture used in concrete mixing and construction. It can reduce the friction of concrete pumping, concrete segregation and slump loss, improve the workability of concrete, speed up the construction progress, and improve the efficiency of fresh mixing. The pumpability of concrete can also improve the durability of hardened concrete, such as impermeability and frost resistance. It is suitable for ready-mixed commercial concrete, hi...

Claims

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Application Information

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IPC IPC(8): C04B18/12C04B28/04
CPCC04B40/0042C04B28/04C04B2201/50C04B2111/00146Y02W30/91
Inventor 王冬俊
Owner 天津市滨海金鹏建筑材料有限公司
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