Intelligent concrete deicing system and construction method

Abstract

The invention relates to an intelligent concrete deicing system and a construction method, the system comprises CNT-CF / intelligent concrete, stainless steel meshes and a power supply, the CNT-CF / intelligent concrete is poured on a road surface, the two stainless steel meshes with the same height are inserted into the two sides of the CNT-CF / intelligent concrete according to a certain interval, the stainless steel meshes are connected with the power supply, and current is monitored through an ampere meter. When the road surface is frozen in winter, ice and snow are melted through heat generated after an alternating-current or direct-current electric field is externally added by means of good conductivity of the intelligent concrete. According to the intelligent concrete deicing system, based on the good electrothermal effect of the intelligent concrete, the heating power of the intelligent concrete deicing system is very stable after the intelligent concrete deicing system is powered on, and the intelligent concrete deicing system can be used for melting snow and ice on concrete pavements, bridge floors, airport runways and other structures and is beneficial to achieving low-carbon and environment-friendly effects. The intelligent concrete deicing system not only can guarantee road smoothness and traffic safety, but also can improve the operation efficiency of roads and airports, and has remarkable economic and social benefits.

Description

Technical Field

[0001] The invention belongs to the technical field of building materials, and in particular relates to an intelligent concrete deicing system and a construction method. Background Art

[0002] A large number of cement concrete pavements have been built on highways, urban roads, ports, and airports in my country. In the cold winter, when the cement concrete pavement is covered with snow and ice due to snowfall, it has a serious impact on the smooth flow of roads and driving safety, and even causes the closure of roads and airports, which brings inconvenience to passenger and freight transportation and causes huge economic losses to the construction units. In order to ensure smooth roads and driving safety, measures must be taken to melt snow and ice on the concrete pavement structure.

[0003] Therefore, there is an urgent need to provide a convenient and safe intelligent concrete deicing system and construction method to solve the problem that when snow and ice form on cement concrete roads, the smooth flow of roads and driving safety are seriously affected. Summary of the invention

[0004] The present invention provides an intelligent concrete deicing system and construction method, which prepares intelligent concrete with electrothermal effect by adding conductive components such as carbon nanotubes and carbon fibers into cement-based materials. Intelligent concrete is used to melt snow and ice, that is, the good conductivity of intelligent concrete is used to melt ice and snow through the heat generated by applying an AC or DC electric field. This not only helps to keep roads unobstructed and drive safely in winter, but also eliminates the use of deicing salt and the negative effects of deicing salt on concrete structures and the environment.

[0005] In order to solve the above technical problems, the present invention includes the following technical solutions:

[0006] An intelligent concrete deicing system includes CNT-CF / intelligent concrete, a stainless steel mesh, and a power source. The CNT-CF / intelligent concrete is poured on a road surface. Two pieces of the stainless steel mesh of the same height are inserted into both sides of the CNT-CF / intelligent concrete at a certain interval. The stainless steel mesh is connected to the power source as an electrode, and the current is monitored by an ammeter.

[0007] Furthermore, the CNT-CF / smart concrete includes cement, water, sand, gravel, carbon nanotubes and carbon fibers, and its mass ratio is as follows: cement: water: sand: gravel = 1:0.57:1.73:3.08, the mass ratio of carbon nanotubes to carbon fibers is 1:1, and the total mass of carbon nanotubes and carbon fibers is 0.2% to 0.5% of the mass of cement.

[0008] The present invention also provides a construction method of an intelligent concrete deicing system, comprising the following steps:

[0009] Step S1: pre-dispersing carbon nanotubes and carbon fibers respectively: adding carbon nanotubes and dispersant to a suitable amount of water at a ratio of 1:1, then heating and stirring for 15 minutes with a magnetic stirrer, and then ultrasonically treating for 45 minutes to obtain a carbon nanotube suspension dispersion; at the same time, dissolving carbon fibers and methyl cellulose in a suitable amount of water at a ratio of 1:1, heating and stirring for 15 minutes with a magnetic stirrer, and then ultrasonically treating for 45 minutes to obtain a carbon fiber suspension dispersion;

[0010] Step S2: Cement, water, sand and gravel are mixed evenly in a mass ratio of 1:0.57:1.73:3.08 to prepare concrete, wherein the amount of water used for mixing the concrete is deducted from the amount of water used for the carbon nanotube and carbon fiber dispersion;

[0011] Step S3: adding the carbon nanotube suspension dispersion and the carbon fiber suspension dispersion to the concrete prepared in step S2, and stirring evenly, thereby preparing CNT-CF / smart concrete;

[0012] Step S4: Pour the CNT-CF / smart concrete obtained in step S3 onto the road surface, gently vibrate and smooth it, then insert two pieces of stainless steel mesh of the same height at a certain distance on both sides of the CNT-CF / smart concrete, use a wire to connect the stainless steel mesh to an external power supply, and monitor the current through an ammeter, so as to obtain a smart concrete deicing system.

[0013] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0014] The present invention provides an intelligent concrete deicing system, including CNT-CF / intelligent concrete, a stainless steel mesh, and a power supply. The CNT-CF / intelligent concrete is cast on the road surface, and two pieces of the stainless steel mesh of the same height are inserted into the two sides of the CNT-CF / intelligent concrete at a certain interval. The stainless steel mesh is connected to the power supply as an electrode, and the current is monitored by an ammeter. When the road surface is frozen in winter, the good conductivity of the intelligent concrete is utilized to melt the ice and snow through the heat generated by applying an AC or DC electric field. The intelligent concrete deicing system is based on the good electrothermal effect of the intelligent concrete. After power is turned on, its heating power is very stable, and it can be used to melt snow and ice on structures such as concrete roads, bridge decks and airport runways, which is conducive to achieving low-carbon and environmentally friendly effects. The intelligent concrete deicing system can not only ensure the smooth flow of roads and driving safety, but also improve the operating efficiency of roads and airports, with significant economic and social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The figure is a schematic diagram of the structure of an intelligent concrete deicing system according to an embodiment of the present invention.

[0016] In the figure:

[0017] 1-CNT-CF / smart concrete; 2-stainless steel mesh; 3-power supply. DETAILED DESCRIPTION

[0018] The following is a further detailed description of an intelligent concrete deicing system and construction method provided by the present invention in conjunction with the accompanying drawings and specific embodiments. Based on the following description, the advantages and features of the present invention will become clearer. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. For the convenience of description, the "upper" and "lower" described below are consistent with the upper and lower directions of the accompanying drawings, but this cannot be a limitation of the technical solution of the present invention.

[0019] Embodiment 1

[0020] Combine the following Figure 1 , the structural composition of the intelligent concrete deicing system of the present invention is described in detail.

[0021] Please continue to refer to Figure 1 , an intelligent concrete deicing system, including CNT-CF / intelligent concrete 1, stainless steel mesh 2, and power supply 3. The CNT-CF / intelligent concrete 1 is poured on the road surface, and two stainless steel meshes 2 of the same height are inserted into both sides of the CNT-CF / intelligent concrete 1 at a certain interval. The stainless steel mesh 2 is connected to the power supply 3 as an electrode, and the current is monitored by an ammeter.

[0022] In this embodiment, more preferably, the CNT-CF / smart concrete 1 includes cement, water, sand, gravel, carbon nanotubes and carbon fibers, and its mass ratio is as follows: cement: water: sand: gravel = 1:0.57:1.73:3.08, the mass ratio of carbon nanotubes to carbon fibers is 1:1, and the total mass of carbon nanotubes and carbon fibers is 0.2% to 0.5% of the mass of cement.

[0023] Specifically, CNT (carbon nanotube) and CF (carbon fiber) are uniformly mixed and added into cement-based materials to prepare CNT-CF / intelligent cement-based materials to improve the electrothermal effect of cement-based materials. On this basis, an intelligent ice-breaking system is established, which can be used in projects such as highways, urban roads, ports, terminals and airports.

[0024] Please continue to refer to Figure 1 This embodiment also provides a construction method of an intelligent concrete deicing system, comprising the following steps:

[0025] Step S1: pre-dispersing carbon nanotubes and carbon fibers respectively: adding carbon nanotubes and dispersant to a suitable amount of water at a ratio of 1:1, then heating and stirring for 15 minutes with a magnetic stirrer, and then ultrasonically treating for 45 minutes to obtain a carbon nanotube suspension dispersion; at the same time, dissolving carbon fibers and methyl cellulose in a suitable amount of water at a ratio of 1:1, heating and stirring for 15 minutes with a magnetic stirrer, and then ultrasonically treating for 45 minutes to obtain a carbon fiber suspension dispersion;

[0026] Step S2: Cement, water, sand and gravel are mixed evenly in a mass ratio of 1:0.57:1.73:3.08 to prepare concrete, wherein the amount of water used for mixing the concrete is deducted from the amount of water used for the carbon nanotube and carbon fiber dispersion;

[0027] Step S3: adding the carbon nanotube suspension dispersion and the carbon fiber suspension dispersion to the concrete prepared in step S2, and stirring evenly, thereby preparing CNT-CF / smart concrete;

[0028] Step S4: Pour the CNT-CF / smart concrete obtained in step S3 onto the road surface, gently vibrate and smooth it, then insert two pieces of stainless steel mesh of the same height at a certain distance on both sides of the CNT-CF / smart concrete, use a wire to connect the stainless steel mesh to an external power supply, and monitor the current through an ammeter, so as to obtain a smart concrete deicing system.

[0029] The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. The above embodiments only express several embodiments of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An intelligent concrete deicing system, characterized in that: include: CNT-CF / smart concrete, stainless steel mesh, power supply, the CNT-CF / smart concrete is poured on the road surface, two pieces of stainless steel mesh of the same height are inserted into the two sides of the CNT-CF / smart concrete at a certain distance, the stainless steel mesh is connected to the power supply as an electrode, and the current is monitored by an ammeter.

2. The intelligent concrete deicing system according to claim 1, characterized in that: The CNT-CF / smart concrete includes cement, water, sand, gravel, carbon nanotubes and carbon fibers, and its mass ratio is as follows: cement: water: sand: gravel = 1:0.57:1.73:3.08, the mass ratio of carbon nanotubes to carbon fibers is 1:1, and the total mass of carbon nanotubes and carbon fibers is 0.2% to 0.5% of the mass of cement.

3. A construction method of an intelligent concrete deicing system, characterized in that: The steps include: Step S1: pre-dispersing carbon nanotubes and carbon fibers respectively: adding carbon nanotubes and dispersant to a suitable amount of water at a ratio of 1:1, then heating and stirring for 15 minutes with a magnetic stirrer, and then ultrasonically treating for 45 minutes to obtain a carbon nanotube suspension dispersion; at the same time, dissolving carbon fibers and methyl cellulose in a suitable amount of water at a ratio of 1:1, heating and stirring for 15 minutes with a magnetic stirrer, and then ultrasonically treating for 45 minutes to obtain a carbon fiber suspension dispersion; Step S2: Cement, water, sand and gravel are mixed evenly in a mass ratio of 1:0.57:1.73:3.08 to prepare concrete, wherein the amount of water used for mixing the concrete is deducted from the amount of water used for the carbon nanotube and carbon fiber dispersion; Step S3: adding the carbon nanotube suspension dispersion and the carbon fiber suspension dispersion to the concrete prepared in step S2, and stirring evenly, thereby preparing CNT-CF / smart concrete; Step S4: Pour the CNT-CF / smart concrete obtained in step S3 onto the road surface, gently vibrate and smooth it, then insert two pieces of stainless steel mesh of the same height at a certain distance on both sides of the CNT-CF / smart concrete, use a wire to connect the stainless steel mesh to an external power supply, and monitor the current through an ammeter, so as to obtain a smart concrete deicing system.

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