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Efficient concrete accelerator

A concrete and quick-setting agent technology, which is applied in the field of coating additives, can solve the problems of large amount of quick-setting agent, decrease in concrete strength, and influence on setting speed, etc., and achieve the effect of simple production process, short setting time and low price

Inactive Publication Date: 2015-12-09
王嘉文
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the accelerator is easy to affect the setting speed due to weathering, the amount of the accelerator added in the construction is relatively large; it not only increases the construction cost, but also causes a large decrease in the strength of the concrete in the later stage and rebounds. Defects such as high rate, can not meet the construction quality requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A high-efficiency concrete quick-setting agent, comprising the following raw materials in parts by weight: 2 parts of sodium fluoride, 15 parts of fatty alcohol polyoxyethylene ether, 10 parts of fatty acid methanol amide, 6 parts of alumina clinker, 1 part of alum stone, 12 parts of chloro-m-xylenol, 1 part of zinc sulfate, 12 parts of calcium formate, 10 parts of naphthalenesulfonate formaldehyde condensate, 15 parts of sodium metaaluminate, 2 parts of cellulose, 9 parts of aluminum sulfate, and 3 parts of iron powder.

Embodiment 2

[0017] A high-efficiency concrete quick-setting agent, comprising the following raw materials in parts by weight: 5 parts of sodium fluoride, 10 parts of fatty alcohol polyoxyethylene ether, 15 parts of fatty acid methanolamide, 4 parts of alumina clinker, 3 parts of alum stone, 8 parts of chloro-m-xylenol, 3 parts of zinc sulfate, 8 parts of calcium formate, 13 parts of naphthalenesulfonate formaldehyde condensate, 10 parts of sodium metaaluminate, 4 parts of cellulose, 6 parts of aluminum sulfate, and 7 parts of iron powder.

Embodiment 3

[0019] A high-efficiency concrete accelerator, comprising the following raw materials in parts by weight: 8 parts of sodium fluoride, 5 parts of fatty alcohol polyoxyethylene ether, 20 parts of fatty acid methanolamide, 2 parts of alumina clinker, 5 parts of alum stone, 4 parts of chloro-m-xylenol, 5 parts of zinc sulfate, 4 parts of calcium formate, 16 parts of naphthalenesulfonic acid formaldehyde condensate, 5 parts of sodium metaaluminate, 6 parts of cellulose, 3 parts of aluminum sulfate, 12 parts of iron powder.

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PUM

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Abstract

The invention discloses an efficient concrete accelerator, and belongs to the field of coating additives. The efficient concrete accelerator comprises the following raw materials in parts by weight: 2 to 8 parts of sodium fluoride, 5 to 15 parts of fatty alcohol polyoxyethylene ether, 10 to 20 parts of fatty acid methylformamide, 2 to 6 parts of alumina clinker, 1 to 5 parts of aluminite, 4 to 12 parts of chloroxylenol, 1 to 5 parts of zinc sulfate, 4 to 12 parts of calcium formate, 10 to 16 parts of naphthalene sulfonated formaldehyde condensate, 5 to 15 parts of sodium metaaluminate, 2 to 6 parts of cellulose, 3 to 9 parts of aluminum sulfate and 3 to 12 parts of iron powder. The efficient concrete accelerator is short in setting time, strong in strength, low in cost and suitable for large-scale production, and a production process is simple.

Description

technical field [0001] The invention relates to a high-efficiency concrete quick-setting agent, which belongs to the field of paint additives. Background technique [0002] Accelerator is an admixture mixed into concrete to make it set and harden rapidly. It is an indispensable additive in sprayed concrete during the construction of mine shafts, railway tunnels, water diversion culverts, and underground projects. Its function is to accelerate the hydration and hardening of cement and form sufficient strength in a short period of time to meet the requirements of special construction. [0003] At present, commonly used quick-setting agents are usually prepared from alumina clinker, calcined alunite and gypsum. Because the accelerator is easy to affect the setting speed due to weathering, the amount of the accelerator added in the construction is relatively large; it not only increases the construction cost, but also causes a large decrease in the strength of the concrete in t...

Claims

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Application Information

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IPC IPC(8): C04B24/38
Inventor 王嘉文
Owner 王嘉文
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