Conductive concrete composition capable of being rapidly cured and molded, preparation method and application thereof

A conductive concrete, fast curing technology, applied in the field of conductive concrete materials, can solve the problem of less research

Pending Publication Date: 2021-04-09
仙居科信智陶新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the research on graphene at home and abroad is mainly concentrated in the fields of energy storage materials, piezoelectric materials and catalytic reduction materials, and there is still quite little research on graphene conductive concrete.

Method used

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  • Conductive concrete composition capable of being rapidly cured and molded, preparation method and application thereof

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Experimental program
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preparation example Construction

[0030] Another aspect of the embodiments of the present invention provides the preparation method of any one of the aforementioned conductive concrete compositions that can be quickly cured and molded, which includes: quickly curing cement, graphene, graphene dispersant, conductive filler and water Mixing, stirring and dispersing to prepare the rapidly curing and forming conductive concrete composition.

[0031] Further, the preparation process of the rapidly solidified conductive concrete composite material is:

[0032] The first step is to add the fast-curing cement powder into the high-speed mixer, then start stirring, then add the semi-solid dispersed graphene slurry and other conductive fillers, stir and disperse at high speed for 15-20 minutes, and then stir at low speed for 2-3 minutes , to prepare a conductive concrete composite material that can be quickly solidified.

[0033] In the second step, based on the conductive concrete composite material prepared in the first...

Embodiment 1

[0039] The composition of the conductive concrete composition that can be cured rapidly in the present embodiment is as follows:

[0040] Phosphorus magnesium cement: 100 parts, 3-day compressive strength is 48.1MPa, 3-day flexural strength is 7.1MPa.

[0041] Graphene: 0.05 parts.

[0042] Graphene dispersant: 0.5 parts

[0043] Conductive filler: graphite (5 parts), carbon fiber (1 part), carbon black (24 parts).

[0044] Mixing water: 25 parts, tap water in Ningbo City.

[0045] The preparation steps are as follows:

[0046] Add the fast-curing cement powder into the high-speed mixer, then start stirring, then add the semi-solid dispersed graphene slurry and conductive filler, carry out high-speed stirring and dispersing for 15-20 minutes, and then stir at low speed for 2-3 minutes. Cured into a conductive concrete composition.

[0047] Based on the conductive concrete composite material prepared above, add water and a small amount of water reducer to make conductive c...

Embodiment 2

[0049] The composition of the conductive concrete composition that can be cured rapidly in the present embodiment is as follows:

[0050] Phosphorus magnesium cement: 100 parts, 3-day compressive strength is 48.1MPa, 3-day flexural strength is 7.1MPa.

[0051] Graphene: 0.5 parts.

[0052] Graphene dispersant: 1 part

[0053] Conductive filler: graphite (15 parts), carbon fiber (1 part), carbon black (14 parts).

[0054] Mixing water: 25 parts, tap water in Ningbo City.

[0055] The preparation steps are as follows:

[0056] Add the fast-curing cement powder into the high-speed mixer, then start stirring, then add the semi-solid dispersed graphene slurry and conductive filler, carry out high-speed stirring and dispersing for 15-20 minutes, and then stir at low speed for 2-3 minutes. Cured and formed conductive concrete composite

[0057] Based on the conductive concrete composite material prepared above, add water and a small amount of water reducer to make conductive con...

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Abstract

The invention discloses a conductive concrete composition capable of being rapidly cured and molded, a preparation method and application thereof. The conductive concrete composition capable of being rapidly cured and molded comprises rapidly cured cement serving as a base material and conductive concrete combined slurry taking the base material as a benchmark, and the conductive concrete combined slurry comprises the following components by mass percentage: 0.05-2% of graphene, 0.5-3% of a graphene dispersing agent, 0-40% of a conductive filler and 15-30% of water. The rapidly cured cement is phosphorus-magnesium cement. The conductive concrete composition provided by the invention has the advantages of rapid mass production of concrete products with good conductivity, high mechanical strength, stable resistivity and good durability, not only improves the conductivity (the resistivity can reach 10ohm.cm) of a base material, but also accelerates the molding process (room temperature curing within 30min), and can be widely applied to the fields of electric heating, electric heating pavements and the like.

Description

technical field [0001] The invention relates to a conductive concrete material, in particular to a graphene nanomaterial-based conductive concrete composition that can be quickly solidified and formed, a preparation method and application thereof, and belongs to the technical field of electrothermal materials in functional materials. Background technique [0002] Housing is the product of humans adapting to and transforming nature in order to meet their own needs, and it is also a contradictory unity between human needs and nature. becomes an important issue. In the past, due to the shortage of electricity in our country, we focused on the development of heating methods using hot water as the medium. However, our country’s coal resources are in short supply, and at the same time, the country’s water resources are also increasingly scarce. Burning hot water for heating will cause a great waste of national resources. Heating and exhausting smoke will also cause serious enviro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/34C04B111/94
CPCC04B28/34C04B2201/50C04B2111/94C04B2201/05C04B14/024C04B14/022C04B14/386C04B14/48C04B2103/408
Inventor 余海斌邵振宗王东霖
Owner 仙居科信智陶新材料有限公司
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