Electric heating concrete plate for heating and preparation method thereof

A concrete and plate technology, applied in the field of conductive concrete, can solve the problems of uneven heating, increase the floor load, and reduce the net height, and achieve the effects of improving the uneven heating, reducing the floor load and reducing the net height.

Inactive Publication Date: 2021-03-05
王瑞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are still the following problems to be solved for electrothermal concrete slabs: most of the existing conductive concrete slabs are thick slabs of about 50mm. After thinning, there will be uneven heating during the electrification process

Method used

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  • Electric heating concrete plate for heating and preparation method thereof
  • Electric heating concrete plate for heating and preparation method thereof
  • Electric heating concrete plate for heating and preparation method thereof

Examples

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preparation example Construction

[0035] A second aspect of the present invention discloses a method for preparing an electric heating concrete slab for heating described in the first aspect of the present invention, comprising the following steps:

[0036] S1: Add the conductive material and water into the mixing tank, start stirring, and evenly disperse the conductive material in the water;

[0037] S2: mix cement, heat-conducting aggregate, ordinary aggregate, early strength agent, water reducer, and defoamer uniformly in proportion to obtain mixed powder;

[0038] S3: Add the mixed powder obtained in S2 into the mixing tank in S1 and stir evenly to obtain conductive concrete mortar;

[0039] S4: Pouring the conductive concrete mortar obtained in S3 into a mold with electrodes at both ends with a height of 10mm, and curing it for 28 days in a humid environment at room temperature to obtain an electrothermal concrete plate with a thickness not greater than 10mm, a length of 800mm, and a width of 400mm.

[0...

Embodiment 1

[0055] An electrothermal concrete for heating, comprising the following raw materials in parts by weight:

[0056] 42.5 Portland cement: 100 parts

[0057] Graphene: 1.5 parts

[0058] Conductive carbon black: 9.5 parts

[0059] 1-3mm white corundum: 67 parts

[0060] 0.15-1mm corundum: 33 parts

[0061] 0.15-1.5 river sand: 40 parts

[0062] 1-4mm gravel: 60 parts

[0063] Calcium acetate: 0.5 parts

[0064] Calcium formate: 0.25 parts

[0065] Water reducing agent: 0.5 parts

[0066] Defoamer: 0.3 parts

[0067] Water: 45 parts.

[0068] A method for preparing electric heating concrete for heating comprises the following steps:

[0069] S1: Add graphene, conductive carbon black and water into the mixing tank according to the above weight parts, start stirring, so that graphene and conductive carbon black are evenly dispersed in the water;

[0070] S2: Mix 42.5 Portland cement, white corundum, corundum, river sand, crushed stone, calcium acetate, calcium formate, w...

Embodiment 2

[0075] An electrothermal concrete for heating, comprising the following raw materials in parts by weight:

[0076] 42.5 Portland cement: 100 parts

[0077] Graphene: 2 parts

[0078] Conductive carbon black: 8 parts

[0079] 1-3mm white corundum: 80 parts

[0080] 0.15-1mm corundum: 120 parts

[0081] 0.15-1.5 river sand: 60 parts

[0082] 1-4mm gravel: 90 parts

[0083] Calcium acetate: 0.5 parts

[0084] Calcium formate: 0.5 parts

[0085] Water reducing agent: 0.5 parts

[0086] Defoamer: 0.3 parts

[0087] Water: 40 parts.

[0088] A method for preparing electric heating concrete for heating comprises the following steps:

[0089] S1: Add graphene, conductive carbon black and water into the mixing tank according to the above weight parts, start stirring, so that graphene and conductive carbon black are evenly dispersed in the water;

[0090] S2: Mix 42.5 Portland cement, white corundum, corundum, river sand, crushed stone, calcium acetate, calcium formate, water...

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Abstract

The invention discloses an electric heating concrete plate for heating. The electric heating concrete plate is prepared from the following raw materials in parts by weight: 100 parts of cement, 100-300 parts of heat-conducting aggregate, 0-150 parts of common aggregate, 5-15 parts of a conductive material, 25-55 parts of water, 0-4 parts of a defoaming agent, 0.5-1 part of a water reducing agent and 0.5-1 part of an early strength agent, wherein the early strength agent is at least one selected from calcium acetate and calcium formate. The heat-conducting aggregate is added into the electric heating concrete plate, so the heat-conducting property of the electric heating concrete plate is improved, and the condition of uneven heating of the plate can be improved; and calcium acetate and calcium formate are used as the early strength agent, so the early strength of the poured electric heating plate can be improved, and the resistivity of the plate can be reduced to a certain extent, thereby reducing the consumption of the conductive material and lowering production cost.

Description

technical field [0001] The invention relates to the technical field of conductive concrete, in particular to an electrothermal concrete plate for heating and a preparation method thereof. Background technique [0002] Conductive concrete slab, as a new type of building material with good electrical and thermal performance, is a research hotspot in indoor heating. Lay ordinary ground tiles or self-adhesive wear-resistant and waterproof plastics on the conductive concrete slab to make it integrated, and then lay it on the ground, the heat will be transferred from bottom to top to create a more comfortable environment. Can play the role of waterproof, but also can play the role of anti-electric shock. This heating method is easy to construct, low in cost, and easy to maintain. If a failure occurs, only the plate at the place where the failure occurs needs to be repaired or replaced. Moreover, by connecting it with accessories such as a temperature control switch, the indoor t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B28/04C04B28/06C04B28/34C04B24/04
CPCC04B28/00C04B28/04C04B28/06C04B28/34C04B24/04C04B2201/32C04B2111/00465C04B14/02C04B14/06C04B2103/302C04B14/024C04B14/022C04B14/303C04B14/324C04B2103/50C04B14/026
Inventor 王瑞
Owner 王瑞
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