Conductive cement and method for preparing same

Abstract

The invention discloses a conductive concrete and a preparation method; the conductive cement comprises the following components based on weight proportion: 100 portions of cement, 50-300 portions of sand, 1-30 portions of graphite, and water; wherein, the mass ratio between the dosage of water and the total dosage of the cement, sand and graphite is 0.3:1-0.35:1; the graphite is nano-graphite microchip which is 10-80nm in thickness and 0.2-20 microns in diameter. The cement, the sand and the nano-graphite microchip are evenly mixed, poured and molded, and then maintained for 24 hours at room temperature and under the conditions of 90% humidity for condensation. The conductive concrete obtained in the invention has good conductive properties, simple preparation method, small volume resistivity and high mechanical strength, and can be made into refined products, dope, mortar and concrete; the conductive concrete can be widely applied to industrial anti-static and shielding electromagnetic wave materials and non-metallic electric heating elements.

Description

technical field [0001] The invention relates to a conductive cement and a preparation method thereof, belonging to the technical field of building material industry. Background technique [0002] As an ideal structural material, cement has been invented for a century and a half. It has played a great role in the development of human civilization. However, with the development of human society and science and technology, the traditional cement material with a single function can no longer be used. Meet the needs of engineering and new technology requirements. Modern architecture requires cement materials to have some special functions (such as electricity, sound, magnetism, heat, etc.) in addition to maintaining the original characteristics, so as to meet the requirements of multifunctional and intelligent buildings. [0003] In the current known technology, general conductive cement and its conductive cement products are made by adding conductive materials. The conductive ...

AI Technical Summary

Problems solved by technology

[0006] In the prior art, in the process of making conductive cement, it is necessary to add a large amount of graphite or other conductive fillers to achieve a better conductive effect, which leads to problems such as unstable conductivity, low strength of conductive cement and its products, and seriously affects the conductivity. Properties of cement and its products

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