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Low-alkaline accelerator and preparation method thereof

A technology of quick-setting agent and mineral additive, which is applied in the field of low-alkali quick-setting agent and its preparation, can solve the problems of corrosion and injury, high alkali content, low adhesion, etc., and achieves cost saving, high adhesion, and equipment. less demanding effects

Inactive Publication Date: 2014-08-13
北京市新世纪东方建筑材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the quick-setting agent in the prior art has the disadvantages of large dust, low adhesion, large alkali content, corrosion and injury.

Method used

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Examples

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Comparison scheme
Effect test

preparation example Construction

[0027] A preparation method of the low-alkali quick-setting agent, the preparation method is: taking sodium fluoride, thiocyanate, organic alcohol amine and mineral additives in proportion and adding them to a mixing mixer, stirring, Mix well and evenly to obtain the low-alkali quick-setting agent.

[0028] As a further preference, the thiocyanate includes sodium thiocyanate, potassium thiocyanate, ammonium thiocyanate and the like.

[0029] As a further preference, the mineral additives include fly ash and silica fume.

[0030] As a further preference, the mixing agitator is provided with air-induced dust removal equipment.

Embodiment 1

[0033] A preparation method of a low-alkali quick-setting agent is as follows: Weigh 12-14kg of sodium fluoride, 25-30kg of thiocyanate, 6-7kg of organic alcohol amine and 50-60kg of mineral additives, and add them into a mixing mixer , stir, and fully mix uniformly to obtain the low-alkali quick-setting agent.

Embodiment 2

[0035] A preparation method of a low-alkali quick-setting agent is as follows: Weigh 14-16kg of sodium fluoride, 30-35kg of sodium thiocyanate, 6-8kg of organic alcohol amine and 40-50kg of mineral additives, and add them to the mixing mixer , stir, and fully mix uniformly to obtain the low-alkali quick-setting agent.

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PUM

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Abstract

The invention relates to a low-alkaline accelerator and a preparation method thereof. The accelerator comprises sodium fluoride, thiocyanate, organic hydramine and mineral additive. The preparation method comprises the following steps: weighing all the components in proportion, putting the components into a mixing agitator, stirring and mixing the components uniformly so as to obtain the low-alkaline accelerator. The accelerator prepared by the method can be used for reducing dust, has strong adhesive strength, and also can be used for reducing falling ash.

Description

technical field [0001] The invention relates to a concrete admixture in the construction field, in particular to a low-alkali quick-setting agent and a preparation method thereof. Background technique [0002] Accelerator is a kind of admixture mixed into concrete that can make concrete set and harden rapidly. Mixing a small amount of quick-setting agent can make the concrete solidify in a short time, and form sufficient strength in a short time to meet the requirements of special construction and achieve the purpose of rapid repair or rapid setting of concrete in shafts. Indispensable additive in concrete construction method. However, the quick-setting agent in the prior art has the disadvantages of large dust, low adhesion, large alkali content, corrosion and injury to people. Contents of the invention [0003] The object of the present invention is to provide a kind of low-alkali quick-setting agent and preparation method thereof, the quick-setting agent prepared by t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/12C04B22/14
Inventor 王永康
Owner 北京市新世纪东方建筑材料有限公司
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