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Anticorrosion high-belit sulfoaluminate cement clinker and preparation method thereof, anticorrosion high-belit sulfoaluminate cement and preparation method of cement

A technology of special sulfoaluminate and cement clinker, which is applied in the field of corrosion-resistant high-belite sulfoaluminate cement and its preparation, and the field of corrosion-resistant high-belite sulfoaluminate cement clinker and its preparation. Solve the problems of poor seawater erosion resistance and poor abrasion resistance, and achieve the effects of improving seawater erosion resistance and abrasion resistance, high early strength and controllable early hydration speed

Active Publication Date: 2018-04-20
TANGSHAN POLAR BEAR BUILDING MATERIAL
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Problems solved by technology

[0005] The first object of the present invention is to provide a kind of corrosion-resistant high belite sulfoaluminate cement clinker, which is used in cement to alleviate the poor seawater erosion resistance and corrosion resistance of existing cement used in marine environments poor technical problem

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  • Anticorrosion high-belit sulfoaluminate cement clinker and preparation method thereof, anticorrosion high-belit sulfoaluminate cement and preparation method of cement
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  • Anticorrosion high-belit sulfoaluminate cement clinker and preparation method thereof, anticorrosion high-belit sulfoaluminate cement and preparation method of cement

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preparation example Construction

[0073] Another aspect of the present invention provides a method for preparing the above-mentioned corrosion-resistant high belite sulfoaluminate cement clinker, comprising the following steps:

[0074] The raw materials containing silicon, aluminum, sulfur, calcium and iron are mixed according to the content of the above mineral components, and the corrosion-resistant high belite sulfoaluminate cement clinker is obtained after high-temperature reaction.

[0075] Here, the raw material containing silicon, aluminum, sulfur, calcium and iron preferably refers to oxides of silicon, oxides of aluminum, oxides of sulfur, oxides of calcium and oxides of iron.

[0076] By optimizing the chemical composition of the raw materials, the content of each mineral composition obtained after the reaction is more accurate, so as to improve the performance of the corrosion-resistant high belite sulfoaluminate cement clinker.

[0077] As a preferred embodiment of the present invention, the raw m...

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Abstract

The invention provides an anticorrosion high-belit sulfoaluminate cement clinker and a preparation method thereof, anticorrosion high-belit sulfoaluminate cement and a preparation method of the cement, and relates to the field of building material. The anticorrosion high-belit sulfoaluminate cement clinker comprises the following mineral components by the weight percentage: 12%-30% of anhydrous calcium sulfoaluminate, 9.04%-35% of tetracalcium aluminoferrite, 37%-49% of dicalcium silicate, 6%-26% of calcium sulfate and 0.5%-4.1% of free calcium oxide. The anticorrosion high-belit sulfoaluminate cement clinker is used in cement to alleviate the technical problems of poor seawater erosion resistance and poor corrosion resistance of conventional cement used in marine environments, has the advantages of high early strength and easy construction, and can be used for preparing high-corrosion-resistant marine cement concrete for marine environments.

Description

technical field [0001] The invention relates to building materials, in particular to the technical field of sulphoaluminate cement, in particular to a corrosion-resistant high belite sulphoaluminate cement clinker and its preparation method and corrosion-resistant high belite sulphoaluminate cement and its preparation method. Background technique [0002] At present, the cement concrete used in the marine environment is susceptible to seawater erosion, and cracks and damage occur, seriously affecting the durability and service life of reinforced concrete structures. This is because seawater contains more SO 4 2- ion, SO 4 2- After the ions migrate into the interior of the concrete with water, they will react with the hydration product monosulfide calcium sulfoaluminate hydrate to form trisulfide calcium sulfoaluminate hydrate (ie ettringite), accompanied by a significant increase in solid phase volume Increase, leading to internal expansion, causing concrete cracking an...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/345C04B7/36
CPCC04B7/3453C04B7/36Y02P40/10
Inventor 周健张振秋陈智丰
Owner TANGSHAN POLAR BEAR BUILDING MATERIAL
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