Conductive pervious concrete pavement based on plane interlocking type electrode arrangement

Abstract

The invention relates to a conductive pervious concrete pavement based on plane interlocking type electrode arrangement, and belongs to the technical field of road engineering, the conductive pervious concrete pavement comprises a roadbed layer, a heat insulation layer, a conductive concrete heat production layer, an insulation layer and a pervious concrete pavement heat conduction layer which are hierarchically distributed from bottom to top; electrodes are arranged in the conductive concrete heat production layer, the electrodes are in a fishbone shape, the multiple sets of electrodes are arranged in the conductive concrete heat production layer in the length direction of the conductive concrete heat production layer, every two adjacent sets of electrodes are in a horizontal staggered distribution state, and the multiple sets of electrodes are located on the same horizontal plane. According to the conductive pervious concrete pavement based on plane interlocking type electrode arrangement, accumulated snow on the pavement can be removed, accumulated water can be discharged, and the conductivity, stability and durability of the pavement are improved.

Description

Technical Field

[0001] The invention relates to the technical field of road engineering, and in particular to a conductive permeable concrete pavement based on a planar interlocking electrode arrangement. Background Art

[0002] In most parts of my country, snowfall in winter can cause ice on the road, posing a safety hazard to vehicles on the road. The current deicing methods are mainly mechanical deicing or chemical deicing. Such traditional deicing methods are not only inefficient, but also affect the durability of the road surface structure to varying degrees. In particular, salt can cause alkali-aggregate reaction of cement, seriously damaging the concrete road surface. Compared with traditional deicing methods, conductive concrete can efficiently melt snow and de-ice without damaging the road surface structure.

[0003] Conductive concrete is made by adding conductive materials to concrete aggregates. Its working principle is that the Ca generated during cement hydration reaction 2+ OH - Plasma moves in a directional manner under the action of an external electric field to generate current, thereby generating heat and accelerating the melting of ice on the road surface. However, conductive concrete is a porous material, and its conductivity will decrease due to the evaporation of water over a long period of use.

[0004] In view of the above-mentioned technical phenomenon, the inventor provides a new type of conductive permeable concrete pavement to remove snow from the road and drain accumulated water, thereby improving the conductivity and durability of the road surface. Summary of the invention

[0005] The object of the present invention is to provide a conductive permeable concrete pavement based on a planar interlocking electrode arrangement to remove snow and drain accumulated water from the road surface, thereby improving the conductivity, stability and durability of the road surface.

[0006] The present invention provides a conductive permeable concrete pavement based on a planar interlocking electrode arrangement, which adopts the following technical solution: A conductive permeable concrete pavement based on a planar interlocking electrode arrangement, comprising a road base, a heat insulation layer, a conductive concrete heat generating layer, an insulating layer and a permeable concrete pavement heat conducting layer distributed from bottom to top; Electrodes are arranged inside the conductive concrete heat generating layer. The electrodes are in a fishbone shape. There are multiple groups of electrodes. The multiple groups of electrodes are arranged in the conductive concrete heat generating layer along the length direction of the conductive concrete heat generating layer. Two adjacent groups of electrodes are in a horizontally staggered distribution state, and the multiple groups of electrodes are in the same horizontal plane.

[0007] Preferably, the thermal insulation layer comprises the following raw material components in parts by weight: 400-500 parts of cement A, 50-70 parts of fly ash A, 550-700 parts of fine aggregate A, 900-1000 parts of coarse aggregate A, 2-4 parts of water reducer A, 420-530 parts of vitrified microspheres, and 150-200 parts of water.

[0008] Preferably, the cement A is P.O42.5 Portland cement; The fly ash A is Grade I fly ash with a density of 2.2 g / cm 3 , the content of SiO2 is 45%; The fine aggregate A includes any one or both of quartz sand and river sand, and the fineness modulus of the fine aggregate A is 2.2; The water reducer A is a polycarboxylic acid type high efficiency water reducer; The particle size of the vitrified microspheres is 0.5 mm-1.5 mm, the thermal conductivity is ≤0.045 W / (m·K), and the stacking coefficient is 80-120 kg / m 3 , volume floating rate ≥95%, surface vitrification rate ≥95%, water absorption rate 20-50%.

[0009] Preferably, the compressive strength of the conductive concrete heat-generating layer is 45-55 MPa, and the resistivity is less than 1000 Ω·cm; The conductive concrete heat generating layer comprises the following raw material components in parts by weight: 450-550 parts of cement B, 45-55 parts of carbon fiber, 45-55 parts of carbon black, 600-750 parts of fine aggregate B, 900-1000 parts of coarse aggregate B, 2-4 parts of water reducing agent B, and 120-200 parts of water.

[0010] Preferably, the method for preparing the conductive concrete heat-generating layer comprises the following steps: S1. Pretreatment of carbon fiber: taking cellulose dispersant to disperse the carbon fiber evenly for later use; S2, premixing of raw materials: cement B, carbon black, fine aggregate B, coarse aggregate B, water reducing agent B and the carbon fiber dispersed in step S1 are placed in a mixer and dry mixed until uniform, then water is added and mixed for 5-10 minutes to obtain conductive concrete mortar; S3, molding: placing the conductive concrete mortar obtained in step S2 into a mold treated with lubricating oil, curing and molding, and obtaining a conductive concrete heat-generating layer; The cement B is P.O42.5 silicate cement; The carbon fiber is glue-free chopped carbon fiber, the length of the carbon fiber is 8 mm, the diameter of the carbon fiber is 7 μm, and the carbon content of the carbon fiber is 90%; The fine aggregate B includes any one or both of quartz sand and river sand, and the fineness modulus of the fine aggregate B is 2.2; The water reducer B is a polycarboxylic acid type high efficiency water reducer.

[0011] Preferably, the electrode is a copper wire, and the electrode comprises a main stem, a secondary stem and a branch portion, wherein the secondary stem is provided in multiple groups, and the multiple groups of secondary stems are connected to the main stem at equal distances along the length direction of the main stem, and the branch portions are distributed in a herringbone shape on both sides of the secondary stem; The branch portions of two adjacent groups of electrodes are in a horizontally staggered distribution state.

[0012] Preferably, the diameter of the main stem and the secondary stem is 3 mm, and the diameter of the branch is 1.5 mm; The spacing between adjacent branch parts of one group of electrodes is 30 mm, and the spacing between the secondary branches of two groups of electrodes is 20 cm.

[0013] Preferably, the insulating layer is an epoxy resin adhesive; The thickness of the insulating layer is 1 cm.

[0014] Preferably, the permeable concrete pavement thermal conductive layer comprises the following raw material components in parts by weight: 500-600 parts of cement, 600-750 parts of fine aggregate, 900-1050 parts of coarse aggregate, 50-80 parts of fly ash, 2-4 parts of water reducer, 20-25 parts of reinforcing agent and 120-180 parts of water.

[0015] Preferably, the method for preparing the thermal conductive layer of the permeable concrete pavement comprises the following steps: S1. Put fine aggregate C and coarse aggregate C into a mixer, add 30% water into the mixer, stir for 40-50 seconds, then add cement C and fly ash C and stir for 90-100 seconds, then add fly ash C, water reducer C, reinforcing agent and remaining water, stir for 150-160 seconds to obtain permeable concrete mortar; S2, placing the permeable concrete mortar obtained in step S1 into a mold treated with lubricating oil, curing and molding, and obtaining a permeable concrete pavement heat conductive layer; The cement C is P.O42.5 silicate cement; The fine aggregate C includes any one or both of quartz sand and river sand; The fly ash C is Class I fly ash with a density of 2.2 g / cm 3 , the content of SiO2 is 45%; The water reducer C is a polycarboxylic acid type high efficiency water reducer; The reinforcing agent is a special reinforcing agent for permeable concrete.

[0016] In summary, the present invention includes the following beneficial technical effects: 1. The present application includes a roadbed, a heat-insulating layer, a conductive concrete heat-generating layer, an insulating layer and a permeable concrete pavement heat-conducting layer, which are distributed in layers from bottom to top, wherein electrodes are arranged inside the conductive concrete heat-generating layer; the roadbed improves the road bearing capacity and pavement stability; the setting of the heat-insulating layer reduces the phenomenon of heat generated by the conductive concrete heat-generating layer being transferred downward, and more heat is retained in the permeable concrete pavement heat-conducting layer; the conductive concrete heat-generating layer generates heat after being energized, which effectively melts the snow and ice on the road surface and prevents the road surface from icing; the electrode adopts a herringbone structure, and multiple groups of electrodes are arranged in a planar interlocking state and are arranged in the conductive concrete heat-generating layer to increase the contact area between the electrode and the conductive concrete heat-generating layer and improve the current transmission efficiency; the insulating layer effectively isolates the conductive concrete heat-generating layer from the surrounding environment to prevent current leakage; the porous structure of the permeable concrete heat-conducting surface layer can store water, provide water for the conductive concrete heat-generating layer, make up for the water evaporation loss, maintain its conductive properties, and extend its service life.

[0017] 2. The conductive concrete heat-generating layer in this application includes carbon fiber and carbon black to improve the conductivity of the conductive concrete heat-generating layer, which can generate heat faster and improve snow melting efficiency. In addition, the permeable concrete heat-conducting surface layer can provide moisture for the conductive concrete heat-generating layer in combination with the permeable concrete heat-conducting surface layer.

[0018] 3. The present application adopts a planar interlocking electrode arrangement structure, that is, multiple groups of electrodes are arranged in a staggered plane. Compared with the traditional copper mesh arrangement, the use of copper wire is reduced. In addition, during the later maintenance and dismantling of the concrete pavement arranged with the traditional copper mesh, the copper mesh and copper wire will be cut off. The present application can effectively solve this problem. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a conductive permeable concrete pavement based on a planar interlocking electrode arrangement provided by an embodiment of the present invention; Figure 2 It is a structural schematic diagram to show the electrode placement method; Figure 3 is a compressive strength trend diagram of the conductive permeable concrete pavement prepared in Example 2 of the present application and Comparative Example 1; Figure 4 It is a resistivity trend diagram of the conductive permeable concrete pavement prepared in Example 2 of the present application and Comparative Example 1; Figure 5 It is a temperature trend diagram of the conductive permeable concrete pavement prepared in Example 2 of the present application and Comparative Example 1.

[0020] Explanation of the reference numerals: 1. road base; 2. thermal insulation layer; 3. conductive concrete heat-generating layer; 4. insulating layer; 5. permeable concrete pavement heat-conducting layer; 6. electrode; 61. main trunk; 62. secondary trunk; 63. branch. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-4 The present invention is described in further detail.

[0022] Example 1 The present invention provides a conductive permeable concrete pavement based on a planar interlocking electrode arrangement, referring to Figure 1 and Figure 2 , including a road base layer 1, a heat insulating layer 2, a conductive concrete heat generating layer 3, an insulating layer 4 and a permeable concrete pavement heat conducting layer 5 which are distributed from bottom to top; wherein the conductive concrete heat generating layer 3 is provided with horizontally placed electrodes 6.

[0023] Reference Figure 1 The thickness of the roadbed 1 is generally 60-80cm. The roadbed 1 in this embodiment includes cement-stabilized crushed stone, which plays a role in improving the road bearing capacity, enhancing the road surface stability, and preventing the road surface from settling. The heat-insulating layer 2 is laid on the top of the roadbed 1. The setting of the heat-insulating layer 2 reduces the phenomenon of the heat generated by the conductive concrete heat-generating layer 3 being transferred downward, and more heat is retained in the permeable concrete pavement heat-conducting layer 5; the thickness of the heat-insulating layer 2 is 7-10cm, and the heat-insulating layer 2 includes the following raw material components by weight: 400-500 parts of cement A, 50-70 parts of fly ash A, 550-700 parts of fine aggregate A, 900-1000 parts of coarse aggregate A, 2-4 parts of water-reducing agent A, 420-530 parts of glass microspheres, and 150-200 parts of water. The cement A in this embodiment is P.O42.5 silicate cement; the fly ash A is Class I fly ash, with a density of 2.2g / cm3 and a SiO2 content of 45%; the fine aggregate A includes any one or two of quartz sand and river sand, and the fineness modulus of the fine aggregate A is 2.2; the water reducer A is a polycarboxylic acid type high-efficiency water reducer, and the water reducing efficiency of the water reducer A in this embodiment is greater than 30%; the particle size of the vitrified microspheres is 0.5mm-1.5mm, the thermal conductivity is ≤0.045W / (m•K), the stacking coefficient is 80-120kg / m3, the volume flotation rate is ≥95%, the surface vitrification rate is ≥95%, and the water absorption rate is 20-50% Reference Figure 1The conductive concrete heat-generating layer 3 is laid on top of the insulation layer 2. The conductive concrete heat-generating layer 3 generates heat after being energized, which effectively melts the snow and ice on the road surface and prevents the road surface from icing. The thickness of the conductive concrete heat-generating layer 3 is 20-25 cm. The conductive concrete heat-generating layer 3 includes the following raw material components in parts by weight: 450-550 parts of cement B, 45-55 parts of carbon fiber, 45-55 parts of carbon black, 600-750 parts of fine aggregate B, 900-1000 parts of coarse aggregate B, 2-4 parts of water reducer B, and 120-200 parts of water. The cement B in this embodiment is P.O42.5 silicate cement; the carbon fiber is glue-free short-cut carbon fiber, the length of the carbon fiber is 8mm, the diameter of the carbon fiber is 7μm, and the carbon content of the carbon fiber is 90%; the fine aggregate B includes any one or two of quartz sand and river sand, and the fineness modulus of the fine aggregate B is 2.2; the water reducer B is a polycarboxylic acid type high-efficiency water reducer, and the water reducing efficiency of the water reducer B in this embodiment is greater than 30%. In the process of preparing the conductive concrete heat-generating layer 3, a cellulose dispersant is taken to disperse the carbon fiber uniformly and set aside, and then cement B, carbon black, fine aggregate B, coarse aggregate B, water reducer B and dispersed carbon fiber are placed in a mixer and dry mixed until uniform, and then water is added and mixed for 5-10 minutes to obtain a conductive concrete mortar, and the conductive concrete mortar is placed in a mold treated with lubricating oil, and cured and formed to obtain a conductive concrete heat-generating layer 3. The compressive strength of the conductive concrete heat-generating layer 3 is 45-55MPa, and the resistivity is less than 1000Ω•cm.

[0024] Reference Figure 1 and Figure 2 , the electrode 6 is in a fishbone shape, and multiple groups of electrodes 6 are provided. In this embodiment, two groups of electrodes 6 are provided. The two groups of electrodes 6 are respectively distributed on both sides of the width direction of the conductive concrete heat generating layer 3, and the two groups of electrodes 6 are horizontally laid in the conductive concrete heat generating layer 3 along the length direction of the conductive concrete heat generating layer 3. The electrode 6 in this embodiment is a copper wire, and the electrode 6 includes a main body 61, a secondary body 62 and a branch 63. The diameters of the main body 61 and the secondary body 62 are 3mm, and the diameter of the branch 63 is 1.5mm; multiple groups of secondary bodies 62 are provided, and multiple groups of secondary bodies 62 are equidistantly connected to the main body 61 along the length direction of the main body 61. The spacing between two adjacent groups of secondary bodies 62 is 20cm. The branches 63 are distributed in a fishbone shape on both sides of the secondary body 62, and the spacing between the branches 63 is 30mm; and the branches 63 of the two groups of electrodes 6 are in a horizontally staggered distribution state. The two types of electrodes 6 in this embodiment adopt a planar interlocking arrangement structure, that is, the electrode 6 adopts a fishbone structure, and the two groups of electrodes 6 are in a horizontally staggered distribution state and are arranged in the conductive concrete heat generating layer 3 to increase the contact area between the electrode 6 and the conductive concrete heat generating layer 3, thereby improving the current transmission efficiency. The staggered arrangement of the electrodes 6 increases the distance for ions to pass, thereby increasing the resistance loss, increasing the heat generation, and further enhancing the snow melting efficiency.

[0025] Reference Figure 1 The insulating layer 4 is laid on the conductive concrete heat-generating layer 3. The insulating layer 4 is an epoxy resin adhesive with a thickness of 1 cm to prevent the potential safety hazards caused by leakage of the conductive concrete heat-generating layer 3. The permeable concrete pavement heat-conducting layer 5 is laid on top of the insulating layer 4. The permeable concrete pavement heat-conducting layer 5 has high compressive strength and wear resistance, can withstand vehicle loads, and ensure the service life of the pavement. The accumulated water after snow and ice melting can quickly penetrate into the lower layer to avoid water accumulation on the road and improve vehicle driving safety. The porous structure can store water, provide water for the conductive concrete, make up for the water evaporation loss, maintain its conductive properties, and extend its service life. The thickness of the permeable concrete pavement heat-conducting layer 5 is 10-12cm, and the permeable concrete pavement heat-conducting layer 5 includes the following raw material components in parts by weight: 500-600 parts of cement C, 600-750 parts of fine aggregate C, 900-1050 parts of coarse aggregate C, 50-80 parts of fly ash C, 2-4 parts of water reducer C, 20-25 parts of reinforcing agent, and 120-180 parts of water. The cement C in this embodiment is P.O42.5 silicate cement; the fine aggregate C includes any one or two of quartz sand and river sand; the fly ash C is Class I fly ash with a density of 2.2 g / cm3 and a SiO2 content of 45%; the water reducer C is a polycarboxylic acid type high-efficiency water reducer, and the water reducing efficiency of the water reducer C in this embodiment is greater than 30%; the reinforcing agent is a special reinforcing agent for permeable concrete, and its cement mortar water reduction rate is 4%, and the cement paste fluidity is 120 mm. In the preparation process of the permeable concrete pavement thermal conductive layer 5, firstly, fine aggregate C and coarse aggregate C are taken into a mixer, and 30% of water is introduced into the mixer, and after stirring for 40-50 seconds, cement C and fly ash C are added and stirred for 90-100 seconds, and then fly ash C, water reducing agent C, reinforcing agent and the remaining water are added and stirred for 150-160 seconds to obtain permeable concrete mortar, and then the permeable concrete mortar is placed in a mold treated with lubricating oil, cured and formed, and the permeable concrete pavement thermal conductive layer 5 is obtained.

[0026] Example 2 A method for preparing a conductive permeable concrete pavement based on a planar interlocking electrode arrangement comprises the following steps: S1. Construct a heat-insulating layer 2 on the surface of a roadbed 1 formed of 60-80 cm thick cement-stabilized crushed stone: take 400-500 parts of cement A, 50-70 parts of fly ash A, 550-700 parts of fine aggregate A, 900-1000 parts of coarse aggregate A, 2-4 parts of water reducer A and 420-530 parts of vitrified microspheres, dry-mix them in a mixer until uniform, add 150-200 parts of water, mix for 5-10 minutes, and obtain a heat-insulating concrete mortar; place the heat-insulating concrete mortar in a mold treated with lubricating oil, and cure and shape it to obtain a 7-10 cm thick heat-insulating layer 2; S2. Construct a conductive concrete heat-generating layer 3 on the surface of the heat-insulating layer 2: Take a cellulose dispersant to evenly disperse the carbon fiber and set aside for use. Then take cement B, carbon black, fine aggregate B, coarse aggregate B, water-reducing agent B and the dispersed carbon fiber and put them into a mixer for dry mixing until they are uniform. Then add water and mix for 5-10 minutes to obtain a conductive concrete mortar. The conductive concrete mortar is placed in a mold treated with lubricating oil. During this period, a fishbone-shaped electrode 6 is horizontally laid in the conductive concrete mortar in the mold. Two groups of electrodes 6 are distributed along the width direction of the conductive concrete mortar layer, and each group of electrodes 6 is distributed along the length direction of the conductive concrete mortar layer. The branch parts 63 of the two groups of electrodes 6 are distributed in a plane interlocking manner. After curing and molding, a 20-25 cm thick conductive concrete heat-generating layer 3 is obtained. S3, constructing an insulating layer 4 on the surface of the conductive concrete heat-generating layer 3: taking an epoxy resin adhesive and laying it on the surface of the conductive concrete heat-generating layer 3, curing and forming, and obtaining an insulating layer 4 with a thickness of 1 cm; S4. Construct a permeable concrete pavement heat-conducting layer 5 on the surface of the insulating layer 4: take fine aggregate C and coarse aggregate C into a mixer, and add 30% of water into the mixer, stir for 40-50 seconds, then add cement C and fly ash C and stir for 90-100 seconds, then add fly ash C, water reducer C, reinforcing agent and remaining water, stir for 150-160 seconds to obtain permeable concrete mortar, and then put the permeable concrete mortar into a mold treated with lubricating oil, and cure and shape it to obtain a 10-12 cm thick permeable concrete pavement heat-conducting layer 5, that is, a conductive permeable concrete pavement with staggered herringbone-like electrodes 6 is obtained.

[0027] Comparative Example 1 A method for preparing a conductive permeable concrete pavement based on a planar interlocking electrode arrangement, which is different from Example 2 in that, during the construction of the conductive concrete heat-generating layer 3 on the surface of the insulation layer 2 in step S2, the carbon fiber and carbon black are replaced with equal weight portions of cement B, and the remaining steps are the same as in Example 2.

[0028] Reference Figure 3 and Figure 4 , the compressive strength test graph and resistivity trend graph of the conductive permeable concrete pavement prepared in Example 2 and Comparative Example 1, the compressive strength of the conductive permeable concrete pavement of different ages prepared in Comparative Example 1 is stronger than that of the conductive permeable concrete pavement of corresponding ages prepared in Example 2, carbon fiber and carbon black have a certain influence on the compressive strength of the conductive permeable concrete pavement; however, the conductive permeable concrete pavements of different ages prepared in Example 2 all show a resistivity lower than that of the conductive permeable concrete pavement in Comparative Example 1; combined Figure 5In an ice melting test under a -10°C environment, the temperature of the conductive permeable concrete pavement prepared in Example 2 can reach 4°C within three hours, thereby melting the ice and snow on the conductive permeable concrete pavement, while the conductive permeable concrete pavement prepared in Comparative Example 1 does not have the snow melting function.

[0029] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A conductive permeable concrete pavement based on a planar interlocking electrode arrangement, characterized in that: It comprises a road base (1), a heat insulation layer (2), a conductive concrete heat generating layer (3), an insulating layer (4) and a permeable concrete pavement heat conducting layer (5) which are arranged in layers from bottom to top; An electrode (6) is arranged inside the conductive concrete heat generating layer (3), the electrode (6) is in a fishbone shape, and the electrode (6) is arranged in a plurality of groups. The plurality of groups of electrodes (6) are arranged in the conductive concrete heat generating layer (3) along the length direction of the conductive concrete heat generating layer (3), two adjacent groups of electrodes (6) are in a horizontally staggered distribution state, and the plurality of groups of electrodes (6) are in the same horizontal plane.

2. A conductive permeable concrete pavement based on planar interlocking electrode arrangement according to claim 1, characterized in that: The thermal insulation layer (2) comprises the following raw material components in parts by weight: 400-500 parts of cement A, 50-70 parts of fly ash A, 550-700 parts of fine aggregate A, 900-1000 parts of coarse aggregate A, 2-4 parts of water reducer A, 420-530 parts of vitrified microspheres, and 150-200 parts of water.

3. A conductive permeable concrete pavement based on planar interlocking electrode arrangement according to claim 2, characterized in that: The cement A is P.O42.5 silicate cement; The fly ash A is Class I fly ash, with a density of 2.2 g / cm3 and a SiO2 content of 45%; The fine aggregate A includes any one or both of quartz sand and river sand, and the fineness modulus of the fine aggregate A is 2.2; The water reducer A is a polycarboxylic acid type high efficiency water reducer; The particle size of the vitrified microspheres is 0.5mm-1.5mm, the thermal conductivity is ≤0.045W / (m•K), the stacking coefficient is 80-120kg / m3, the volume floating rate is ≥95%, the surface vitrification rate is ≥95%, and the water absorption rate is 20-50%.

4. The conductive permeable concrete pavement based on planar interlocking electrode arrangement according to claim 1, characterized in that: The conductive concrete heat-generating layer (3) has a compressive strength of 45-55 MPa and a resistivity of less than 1000 Ω•cm; The conductive concrete heat generating layer (3) comprises the following raw material components in parts by weight: 450-550 parts of cement B, 45-55 parts of carbon fiber, 45-55 parts of carbon black, 600-750 parts of fine aggregate B, 900-1000 parts of coarse aggregate B, 2-4 parts of water reducing agent B, and 120-200 parts of water.

5. The conductive permeable concrete pavement based on planar interlocking electrode arrangement according to claim 1, characterized in that: The method for preparing the conductive concrete heat-generating layer (3) comprises the following steps: S1. Pretreatment of carbon fiber: taking cellulose dispersant to evenly disperse the carbon fiber for later use; S2, premixing of raw materials: cement B, carbon black, fine aggregate B, coarse aggregate B, water reducing agent B and the carbon fiber dispersed in step S1 are placed in a mixer and dry mixed until uniform, then water is added and mixed for 5-10 minutes to obtain conductive concrete mortar; S3, molding: placing the conductive concrete mortar obtained in step S2 into a mold treated with lubricating oil, curing and molding, and obtaining a conductive concrete heat-generating layer (3); The cement B is P.O42.5 silicate cement; The carbon fiber is glue-free chopped carbon fiber, the length of the carbon fiber is 8 mm, the diameter of the carbon fiber is 7 μm, and the carbon content of the carbon fiber is 90%; The fine aggregate B includes any one or both of quartz sand and river sand, and the fineness modulus of the fine aggregate B is 2.2; The water reducer B is a polycarboxylic acid type high efficiency water reducer.

6. The conductive permeable concrete pavement based on planar interlocking electrode arrangement according to claim 1, characterized in that: The electrode (6) is a copper wire, and comprises a main body (61), a secondary body (62) and a branch part (63). The secondary body (62) is provided in a plurality of groups, and the plurality of groups of secondary bodies (62) are connected to the main body (61) at equal intervals along the length direction of the main body (61). The branch parts (63) are distributed in a herringbone shape on both sides of the secondary body (62); The branch portions (63) of two adjacent groups of electrodes (6) are in a horizontally staggered distribution state.

7. A conductive permeable concrete pavement based on planar interlocking electrode arrangement according to claim 6, characterized in that: The diameters of the main stem (61) and the secondary stem (62) are 3 mm, and the diameter of the branch portion (63) is 1.5 mm; The spacing between adjacent branch portions (63) of one group of electrodes (6) is 30 mm, and the spacing between adjacent branch portions (62) of two groups of electrodes (6) is 20 cm.

8. The conductive permeable concrete pavement based on planar interlocking electrode arrangement according to claim 1, characterized in that: The insulating layer (4) is an epoxy resin adhesive; The thickness of the insulating layer (4) is 1 cm.

9. The conductive permeable concrete pavement based on planar interlocking electrode arrangement according to claim 1, characterized in that: The permeable concrete pavement heat-conducting layer (5) comprises the following raw material components in parts by weight: 500-600 parts of cement, 600-750 parts of fine aggregate, 900-1050 parts of coarse aggregate, 50-80 parts of fly ash, 2-4 parts of water reducer, 20-25 parts of reinforcing agent and 120-180 parts of water.

10. The conductive permeable concrete pavement based on planar interlocking electrode arrangement according to claim 9, characterized in that: The method for preparing the permeable concrete pavement heat-conducting layer (5) comprises the following steps: S1. Put fine aggregate C and coarse aggregate C into a mixer, add 30% water into the mixer, stir for 40-50 seconds, then add cement C and fly ash C and stir for 90-100 seconds, then add fly ash C, water reducer C, reinforcing agent and remaining water, stir for 150-160 seconds to obtain permeable concrete mortar; S2, placing the permeable concrete mortar obtained in step S1 into a mold treated with lubricating oil, curing and molding, and obtaining a permeable concrete pavement heat conductive layer (5); The cement C is P.O42.5 silicate cement; The fine aggregate C includes any one or both of quartz sand and river sand; The fly ash C is Class I fly ash, with a density of 2.2 g / cm3 and a SiO2 content of 45%; The water reducer C is a polycarboxylic acid type high efficiency water reducer; The reinforcing agent is a special reinforcing agent for permeable concrete.

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