Sulphate aluminium cement and preparation method thereof

A sulfoaluminate cement, mass percentage technology, applied in the field of building materials, can solve the problems of not effectively meeting the requirements, affecting the early strength of cement, long-term strength decline, etc., to avoid large reduction, improve frost resistance, and high early strength Effect

Inactive Publication Date: 2015-07-22
苏州市德莱尔建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen from this technical scheme that the prepared cement has the characteristics of high density. However, due to the high anhydrite content, the initial setting time will be shortened while the early strength of the cement will be affected. The medium-term strength will be stable, but the long-term strength will decline. As Offshore cement cannot effectively meet the requirements

Method used

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  • Sulphate aluminium cement and preparation method thereof
  • Sulphate aluminium cement and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of sulphoaluminate cement, comprises each component of following mass percentage:

[0028] (1) Sulphoaluminate cement clinker 50.0%;

[0029] (2) Seaweed fiber 5.0%;

[0030] (3) Ferrochrome slag 20.0%;

[0031] (4) Boron slag 10.0%;

[0032] (5) Fly ash 10.0%;

[0033] (6) Desulfurization gypsum 5.0%.

[0034] According to the preparation method of sulphoaluminate cement provided by the present invention, the above-mentioned sulphoaluminate cement is prepared, and the preparation steps are as follows:

[0035] (1) Material preparation: Accurately weigh each component according to the mass content of each component;

[0036] (2) Pulverization: pulverize ferrochrome slag and boron slag until the average particle size of the powder is 100um;

[0037] (3) Grinding: Mix the various components together according to the mass percentage and grind until the average particle size is 25um to obtain sulphoaluminate cement.

Embodiment 2

[0039] A kind of sulphoaluminate cement, comprises each component of following mass percentage:

[0040] (1) Sulphoaluminate cement clinker 70.0%;

[0041] (2) Seaweed fiber 3.0%;

[0042] (3) Ferrochrome slag 10.0%;

[0043] (4) Boron slag 7.0%;

[0044] (5) Fly ash 5.0%%;

[0045] (6) Desulfurization gypsum 5.0%.

[0046] According to the preparation method of sulphoaluminate cement provided by the present invention, the above-mentioned sulphoaluminate cement is prepared, and the preparation steps are as follows:

[0047] (1) Material preparation: Accurately weigh each component according to the mass content of each component;

[0048] (2) Pulverization: pulverize ferrochrome slag and boron slag until the average particle size of the powder is 120um;

[0049] (3) Grinding: Mix the various components together according to the mass percentage and grind until the average particle size is 25um to obtain sulphoaluminate cement.

Embodiment 3

[0051] A kind of sulphoaluminate cement, comprises each component of following mass percentage:

[0052] (1) Sulphoaluminate cement clinker 60.0%;

[0053] (2) Seaweed fiber 8.0%;

[0054] (3) Ferrosilicon slag 12.0%;

[0055] (4) Boron slag 10.0%;

[0056] (5) Fly ash 6.0%;

[0057] (6) Desulfurization gypsum 4.0%. 3.0%-4.5%

[0058] According to the preparation method of sulphoaluminate cement provided by the present invention, the above-mentioned sulphoaluminate cement is prepared, and the preparation steps are as follows:

[0059] (1) Material preparation: Accurately weigh each component according to the mass content of each component;

[0060] (2) Crushing: Crushing ferrosilicon slag and boron slag until the average particle size of the powder is 60-120um;

[0061] (3) Grinding: Mix the various components together according to the mass percentage and grind until the average particle size is 10-25um to obtain sulphoaluminate cement.

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Abstract

The invention discloses sulphate aluminium cement and a preparation method thereof, and relates to the field of building materials. The sulphate aluminium cement comprises the following components in percentage by mass: (1) 50.0%-70.0% of sulphate aluminium cement clinker, (2) 3.0%-8.0% of alginate fiber, (3) 10.0%-25.0% of ferro-alloy slag, (4) 5.0%-15.0% of boron slag, (5) 5.0%-10.0% of pulverized fuel ash, and (6) 2.5%-5.0% of gypsum. The preparation method of the sulphate aluminium cement comprises the following steps: (1) preparing materials, (2) grinding, and (3) pulverizing. The sulphate aluminium cement has the characteristics of being high in hardening rate and high in early strength, and besides, the condition that the long-term strength of the sulphate aluminium cement is reduced greatly is avoided, and the service life of the sulphate aluminium cement is prolonged. Besides, the preparation method for the sulphate aluminium cement, provided by the invention, adopts primary grinding and mixed pulverizing processes, the granularity of the prepared sulphate aluminium cement is relatively small, the specific surface area is relatively large, and the performance is stable.

Description

technical field [0001] The invention belongs to the field of building materials, in particular to a sulphoaluminate cement and a preparation method of the cement. Background technique [0002] Sulfur-aluminate cement was invented and prepared in China. It was produced and used in the 1970s. Now the series of Portland cement products are generally referred to as the first series of cement, and the products of aluminate cement are generally referred to as the second series of cement. The sulphoaluminate cement, iron-aluminate cement and other cement varieties derived from them are commonly referred to as the third series of cement. The mineral composition of this series of cements is characterized by a large amount of C 4 A 3 Minerals, which distinguish it from other series of cements. The third series of cement has the basic characteristics of early strength, high strength, high impermeability, high frost resistance, corrosion resistance, low alkali and low production ene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B11/30
Inventor 计慷
Owner 苏州市德莱尔建材科技有限公司
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