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Pren process of graphite-mixing conductive concrete

A conductive concrete and graphite technology, which is applied to conductive materials dispersed in non-conductive inorganic materials, manufacturing tools, molds, etc., can solve the problems of low strength of conductive concrete, achieve low cost, save consumption, and excellent conductivity

Inactive Publication Date: 2005-09-28
蔡庆宗
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention adopts a wet high-pressure extrusion molding process to solve the problem of low strength of graphite-doped conductive concrete, overcome the deficiencies in the prior art, and greatly improve the performance of graphite-doped concrete on the premise of ensuring excellent electrical conductivity. The strength of conductive concrete can be improved, thereby improving its application performance and expanding its application fields. At the same time, it is easy to implement and low in cost.

Method used

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  • Pren process of graphite-mixing conductive concrete
  • Pren process of graphite-mixing conductive concrete

Examples

Experimental program
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Embodiment

[0022] analyse as below:

[0023] The blank example is ordinary concrete made according to the existing technology;

[0024] Comparative examples 1 to 3 are after mixing different proportions of graphite, the common graphite-doped conductive concrete made according to the prior art, along with the relatively large increase of graphite content, its resistivity decreases linearly, but experiments show that when the graphite content is greater than After about 15%, the resistivity remains basically unchanged, and when the graphite content is 20%, the resistivity is 1.38; the experiment also shows that with the increase of curing age, the resistivity gradually increases, and the increasing trend gradually slows down, such as After curing for 56 days with graphite content of 4.82%, the resistivity is 117.36; as the graphite content increases, its compressive strength decreases linearly. Experiments show that when the graphite content is greater than about 15%, its compressiv...

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Abstract

The graphite-mixing conductive concrete is prepared through wet high voltage extruding process and has excellent conducting performance and high strength. The preparation process includes mixing the material in certain proportion, molding, demolding and curing; and features that after electrodes are embedded, high voltage is applied to extrude out the water in the concrete. The graphite-mixing conductive concrete has expanded application fields.

Description

technical field [0001] The invention belongs to the field of preparation methods of concrete products, and relates to a preparation method of graphite-doped conductive concrete. Background technique [0002] Because graphite has many excellent properties, conductive concrete mixed with graphite is the main type of conductive concrete. In the preparation process, except for graphite, the raw materials used, the proportion and the preparation method are similar to ordinary concrete products, but its strength The reason is that the length-to-diameter ratio of powdered graphite is small, and it is difficult to form an interconnected conductive network in cement concrete. It is necessary to add a higher content to make the concrete have good conductivity. However, with the increase of graphite content increase, the strength of concrete decreases linearly, which is determined by the inherent characteristics of graphite. Therefore, at present, conductive concrete mixed with graphit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B7/00B28B7/46B28B23/00B30B9/04C04B14/04C04B14/36C04B28/04H01B1/18
CPCB28B7/46H01B1/18C04B2111/94B30B9/04C04B28/04B28B23/0081B28B7/0097C04B14/024C04B14/06C04B20/0076C04B40/0259B28B3/02B28B23/0056
Inventor 蔡庆宗
Owner 蔡庆宗