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Conductive cement and method for preparing same

A conductive cement and cement technology, which is applied in the preparation of conductive cement and the field of conductive cement, can solve the problems of high price, low concrete strength, unstable conductivity, etc., and achieve the goal of reducing cost, reducing environmental impact, and realizing recycling. Effect

Inactive Publication Date: 2008-01-30
MAGANG (GROUP) HOLDING CO LTD
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Problems solved by technology

[0006] However, the materials used in the above-mentioned technologies are relatively expensive, and in the process of mixing and forming, they will cause serious segregation, agglomeration, excessive air content in concrete, unstable electrical conductivity, and low concrete strength, which seriously affect the performance of conductive concrete. Performance, high cost of conductive concrete

Method used

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  • Conductive cement and method for preparing same

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preparation example Construction

[0046] When the above-mentioned preparation method is used to make clean slurry conductive products, the mass ratio of water to the conductive cement raw materials is 0.3:1, the clean slurry is stirred and molded, and cured for 24 hours or more to condense.

[0047] In addition, when the above-mentioned preparation method is used to make plastic sand conductive products, the raw material of the above-mentioned conductive cement is used, and in the c) step of the process, granular wind-quenched steel slag is added, wherein water, the above-mentioned The mass ratio of the raw material of the conductive cement to the granular wind-quenched steel slag is 0.3:1:3.8, the mortar is stirred and molded, and cured for 24 hours or more to solidify.

[0048] The maximum particle size of the above-mentioned granular air-quenched steel slag is ≤20mm. Furthermore, the maximum particle size of the granular air-quenched steel slag is ≤10mm. The selection of particles of different sizes for ai...

Embodiment 1

[0050] Embodiment 1: The described conductive cement is to use 45% Portland cement clinker, 50% wind-quenched steel slag, and the rest are natural dihydrate gypsum to grind and mix to make the raw material of conductive cement. The mass ratio of the raw materials of the conductive cement is 0.3:1, the pure slurry is stirred and formed, and cured for 24 hours or more under the conditions of an ambient temperature of 15-25°C and a humidity of 85%-95%. Its electrical conductivity is very good, but the setting time of cement is slightly longer and its strength is slightly lower.

[0051] The technical scheme of ambient temperature and humidity during specific implementation is: the described ambient temperature is 20° C.; the described humidity is 90%.

Embodiment 2

[0052] Embodiment 2: The conductive cement is made by mixing and grinding 78% Portland cement clinker, 20% wind-quenched steel slag, and 2% natural dihydrate gypsum. The clean slurry conductive product is formed by stirring the clean slurry with the mass ratio of water and conductive cement raw materials as 0.3:1, and curing for 24 hours or more under the ambient temperature of 15-25°C and the humidity of 85%-95%. Its electrical conductivity is good, but the setting time of cement is fast and its strength is high.

[0053] The environment for measuring various performance indexes of the conductive cement is: the ambient temperature is 20°C; the humidity is 90%.

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Abstract

The invention discloses conductive cement, comprising noumenon of cement, conductive material and modifying material. The invention is characterized in that the components of the conductive cement are in the following proportions that are ak quench steel slag: 20 percent - 50 percent; levigated natural dehydrate gypsum: 2 percent - 7 percent; others: portland cement clinker. The processing steps are that (1) the preparing of the raw materials for the conductive cement; (2).the mixing of the raw material in a certain proportion which is grinded in mill then; (3) the adding of water in a certain proportion and stirring the obtained material; (4) the molding, that is the obtained material from last step is maintained and coagulated under 15 DEG C-25 DEG C, and 85 percent -95 percent of humidity in 24 hours or more than 24 hours. The invention decreases the production cost of conductive cement, develops a new application of the industrial waste of ak quench steel slag, reduces the pollution to environment, and realizes recycling usage of byproduct of steel production.

Description

technical field [0001] The invention belongs to the technical field of building materials industry, and relates to cement products with special properties, more specifically, the invention relates to a conductive cement. In addition, the present invention also relates to a preparation method of the conductive cement. Background technique [0002] Conventional cement has poor electrical conductivity. In many occasions, such as in the construction and maintenance of various nuclear power, thermal power, hydropower facilities, lightning protection and anti-static engineering of various high-rise buildings, in the construction of heat exchangers, drying rooms, non-icing airport runways and Where shielding is required, the concrete needs to have a certain conductivity. [0003] In the current known technology, general conductive concrete is made by additionally adding conductive materials. At present, the materials used to prepare conductive concrete at home and abroad include...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B18/14C04B22/14C04B111/94
CPCC04B28/141C04B2111/94Y02W30/91C04B7/02C04B18/142C04B40/0281
Inventor 王宗森
Owner MAGANG (GROUP) HOLDING CO LTD
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