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Antifreeze cement

A cement and cement raw material technology, applied in the field of antifreeze cement, can solve problems such as uneven mixing, cement movement, and inability to construct, achieving remarkable early strength effects, increasing strength, and reducing corrosion and damage to steel bars

Inactive Publication Date: 2012-06-06
大连市铭源全科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The construction industry generally works outdoors, especially in winter, when the outdoor temperature is below zero and the cement will move, so construction will not be possible
At present, admixtures, such as early-strength agents and antifreeze agents, are usually used to prevent the mixture of cement and concrete from freezing at low temperatures. Early-strength agents and antifreeze agents generally can only make cement use at a minimum temperature of minus 10 degrees Celsius. The main components of strengthening agent and antifreeze are chlorine-containing salts, which will have adverse effects on cement performance, especially long-term durability.
At the same time, the cement antifreeze and early strength agent are only a few percent of the cement, and there are often uneven mixing, which makes the antifreeze effect not obvious. They can only be used in some areas, and cannot solve the problem of winter construction in all areas.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] After crushing and drying the raw materials of the cement material, antifreeze components are added during the batching. The weight percentages of each antifreeze component and the components in the cement raw material are as follows:

[0020] Calcium metaaluminate: 0.05%

[0021] Sodium thiocyanate: 0.05%

[0022] Calcium silicate hydrate: 0.0%

[0023] Triethanolamine: 0.05%

[0024] Alum: 0.1%

[0025] Gypsum: 0.1%

[0026] After the cement raw meal is ground together with the above components, it is calcined. After the calcining, antifreeze components are added to the cement clinker. The weight percentages of each antifreeze component and the components in the cement raw meal are as follows:

[0027] Calcium metaaluminate: 0.1%

[0028] Sodium thiocyanate: 0.1%

[0029] Calcium silicate hydrate: 0.2%

[0030] Triethanolamine: 0.1%

[0031] Alum: 0.2%

[0032] Gypsum: 0.1%

[0033] After the cement clinker and the above components are placed in the mixing d...

Embodiment 2

[0051] After crushing and drying the raw materials of the cement material, antifreeze components are added during the batching. The weight percentages of each antifreeze component and the components in the cement raw material are as follows:

[0052] Calcium metaaluminate: 0.1%

[0053] Sodium thiocyanate: 0.1%

[0054] Calcium silicate hydrate: 0.6%

[0055] Triethanolamine: 0.15%

[0056] Alum: 0.2%

[0057] Gypsum: 0.05%

[0058] After the cement raw meal is ground together with the above components, it is calcined. After the calcining, antifreeze components are added to the cement clinker. The weight percentages of each antifreeze component and the components in the cement raw meal are as follows:

[0059] Calcium metaaluminate: 0.2%

[0060] Sodium thiocyanate: 0.5%

[0061] Calcium silicate hydrate: 0.4%

[0062] Triethanolamine: 0.2%

[0063] Alum: 0.3%

[0064] Gypsum: 0.1%

[0065] After the cement clinker and the above components are placed in the mixing de...

Embodiment 3

[0067] After crushing and drying the raw materials of the cement material, antifreeze components are added during the batching. The weight percentages of each antifreeze component and the components in the cement raw material are as follows:

[0068] Calcium metaaluminate: 0.3%

[0069] Sodium thiocyanate: 0.3%

[0070] Calcium silicate hydrate: 0.2%

[0071] Triethanolamine: 0.2%

[0072] Alum: 0.3%

[0073] Gypsum: 0.65%

[0074] After the cement raw meal is ground together with the above components, it is calcined. After the calcining, antifreeze components are added to the cement clinker. The weight percentages of each antifreeze component and the components in the cement raw meal are as follows:

[0075] Calcium metaaluminate: 0.3%

[0076] Sodium thiocyanate: 0.3%

[0077] Calcium silicate hydrate: 0.3%

[0078] Triethanolamine: 0.3%

[0079] Alum: 0.3%

[0080] Gypsum: 0.35%

[0081] After the cement clinker and the above components are placed in the mixing devi...

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PUM

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Abstract

The invention relates to antifreeze cement, which is prepared by processes of crushing raw material and drying, burdening, grinding, calcining, stirring and grinding. The invention is characterized in that a proper proportion of the antifreeze component can be filled in cement raw material for calcining, the antifreeze component is added in calcinied clinker, placed in a stirring device for fully stirring and grinding to prepare the cement finished product.

Description

technical field [0001] The invention relates to the field of building materials and manufacturing methods thereof, in particular to an antifreeze cement. Background technique [0002] The construction industry generally works outdoors, especially in winter, when the outdoor temperature is below zero and the cement will move, so construction will not be possible. At present, admixtures, such as early-strength agents and antifreeze agents, are usually used to prevent the mixture of cement and concrete from freezing at low temperatures. Early-strength agents and antifreeze agents generally can only make cement be used at minus 10 degrees Celsius, and early The main components of strengthening agent and antifreeze are chlorine-containing salts, which will have adverse effects on cement performance, especially long-term durability. At the same time, cement antifreeze and early strength agent are only a few percent of cement, and there are often uneven mixing, which makes the ant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/42C04B24/12
Inventor 宫世全宫振鑫
Owner 大连市铭源全科技开发有限公司
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