Conductive material co-doping conductive concrete and preparation method thereof

Abstract

The invention provides conductive material co-doping conductive concrete and a preparation method thereof. The concrete is formed by cement, silica fume, carbon fiber, carbon nanomaterials (carbon nano tube, carbon black and graphite), nano-zinc oxide, water reducer, filler, dispersant, defoaming agents and water. The multifunctional conductive material co-doping conductive concrete is simple in preparation method, and excellent in performance. Part of carbon fiber is replaced with the carbon nanomaterials, and compared with the traditional conductive concrete, the conductive material co-doping conductive concrete has the advantages that the cost is low, the conductive property is stable, and nano-zinc oxide is mixed, so that the conductivity of the concrete can be greatly improved. Under the power on condition, the concrete has the excellent electrothermal performance, and is applied to an airfield pavement, a bridge floor and a cement concrete pavement, so that the effect of melting ice and snow can be realized, the bearing load of the road, the concrete structure crack and extension situations can be detected; under the power off condition, the concrete has the excellent electromagnetic performance, and can efficiently shield electromagnetic waves, reduce electromagnetic radiation, and reduce electromagnetic interference.

Description

technical field [0001] The invention relates to the field of building materials, in particular to conductive concrete compounded with conductive materials and a preparation method thereof. Background technique [0002] The problem of ice and snow accumulation on road surface in winter has always been the biggest problem in road maintenance in cold regions of our country. In the Northeast and Northwest of my country, snow falls early in winter and lasts for several months. The severe ice and snow weather is extremely unfavorable to the smooth flow of roads, railways, highways and airports and driving safety, and brings many inconveniences to people's life and production. In 2008, ice and snow covered 19 provinces across the country, causing large-scale traffic congestion and paralysis, and huge losses. [0003] At present, the main methods of deicing and snow removal are manual and mechanical snow removal and chemical snow removal, but manual snow removal is time-consuming,...

AI Technical Summary

Problems solved by technology

The installation and construction of the geothermal pipe method is obviously complicated; the infrared heating lamp method is easily affected by the surrounding wind direction, and the temperature rises slowly, which is not conducive to rapid snow melting

Due to the movement of traffic, the heating wire will be pulled out of the asphalt concrete pavement layer; the fluid heating method needs to establish a system for melting ice and snow, but the construction of the system itself is troublesome, and the device requires a lot of capital investment. The hot water system is not easy to arrange, and it is more difficult Control, the heating effect is not ideal, when the automatic control system fails and the PVC pipe leaks, the hot water con