A high heat dissipation concrete material

Abstract

The invention belongs to the technical field of graphite membrane application, and relates to a concrete material high in heat dissipation performance and used for the field having heat dissipation requirements such as underfloor heating and industrial pipeline. The concrete material includes, by weight, 20-25 parts of pebbles, 30-40 parts of cement, 5-15 parts of a graphite membrane, 1-3 parts of a water reducer, 1-2 parts of nanometer magnesium oxide and 1-2 parts of active calcium oxide, with the balance being water. The objective of the invention is to provide the concrete material high in heat dissipation performance. The strip-shaped, sheet or irregular-shaped graphite membrane is added into the concrete, and heat of a heat source can be rapidly dissipated on the graphite membrane, and therefore the overall heat of the concrete tends to be uniform, and temperatures of the concrete near the heat source and concrete far away from the heat source are homogenized.

Description

technical field [0001] The invention belongs to the technical field of graphite film application, and relates to a high heat dissipation concrete material used in fields with heat transfer requirements such as floor heating and industrial pipelines. Background technique [0002] In recent years, graphite film materials have been widely used in technical fields such as heat dissipation of electronic products, heat-resistant sealing materials, and heating elements due to their excellent high thermal conductivity, heat resistance, corrosion resistance, and high electrical conductivity. Graphite film with high thermal conductivity is widely used in handheld terminals such as smartphones and tablet computers with dense electronic components and high heat generation, and realizes heat dissipation through high thermal conductivity. [0003] The cement layer in traditional concrete is thermally inert. When temperature adjustment is required, the cement layer will respond after a del...

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Problems solved by technology

[0003] The cement layer in traditional concrete is thermally inert. When temperature adjustment is required, the cement layer will respond after a delay of about 2-3 hours, which loses the meaning of temperature adjustment. Therefore, the traditional cement layer has poor thermal conductivity and heat loss rate High

At present, carbon fiber is mostly used in the heat-conducting phase of heat-conducting concrete, and the price of carbon fiber is relatively high. After adding, the cost of heat-conducting concrete will increase. Compared with carbon fiber, graphite is relatively easy to obtain, the price is also low, and it has good thermal conductivity and chemical inertness. Therefore, graphite can be used as a thermally conductive phase material. Although graphite will increase the thermal conductivity of concrete to a certain extent, graphite is distributed in units of points in concrete, which cannot quickly dissipate excessive local heat, and there is still a temperature near the heat source. Too high, the temperature of the concrete away from the heat source is lower

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