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Graphene reinforced concrete and preparation method thereof

A technology of reinforced concrete and graphene, which is applied in the field of building materials, can solve the problems of reducing bearing capacity and service life, corrosion of steel bars, and difficulty in being replaced, and achieves the effects of easy industrial construction, reducing voids, and reducing material damage

Pending Publication Date: 2022-05-17
HARBIN INST OF TECH AT WEIHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Concrete will be damaged in natural conditions and building use, such as freeze-thaw damage to expand the concrete, carbonation and chloride ion erosion affect the bonding between the pH value of the concrete and the substrate, and the peeling and missing of the outer layer will make the steel reinforcement in the inner layer of the concrete Corrosion, reducing load-bearing capacity and service life
Although many new structural forms will appear in the future with the emergence of new engineering materials, the superiority and wide applicability of reinforced concrete structures are difficult to be replaced in the short term.

Method used

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  • Graphene reinforced concrete and preparation method thereof
  • Graphene reinforced concrete and preparation method thereof
  • Graphene reinforced concrete and preparation method thereof

Examples

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Effect test

Embodiment 1

[0018] A graphene-reinforced concrete, comprising the following components by weight: 200 parts of PO42.5 portland cement, 120 parts of water, 20wt% water content, 10 μm in plane size, 60 parts of graphene with a thickness of 20nm, and a diameter of 20mm 500 parts of coarse sand and 300 parts of fine sand with a particle size of 2 mm.

Embodiment 2

[0020] A graphene-reinforced concrete, comprising the following components by weight: 150 parts of PO42.5 Portland cement, 80 parts of water, 20wt% water content, 10 μm in plane size, 1.5 parts of graphene with a thickness of 20nm, and a diameter of 15mm 500 parts of coarse sand and 380 parts of fine sand with a particle size of 5mm.

Embodiment 3

[0022] A graphene reinforced concrete, comprising the following components by weight: 160 parts of PO42.5 portland cement, 60 parts of water, 20 wt% water content, 10 μm in plane size, 12 parts of graphene with a thickness of 20nm, and a diameter of 15mm 550 parts of coarse sand and 400 parts of fine sand with a particle size of 3 mm.

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Abstract

The graphene reinforced concrete is prepared from the following components in parts by weight: 150 to 200 parts of cement, 60 to 120 parts of water, 1.5 to 60 parts of graphene, 500 to 650 parts of coarse sand and 300 to 400 parts of fine sand. According to the graphene reinforced concrete disclosed by the invention, due to the addition of graphene, the graphene reinforced concrete has chloride ion resistance and carbonization resistance, the damage of a service environment to a material is reduced, and the graphene has very strong adsorbability and can adsorb and remove heavy metal ions and organic pollutants, so that an engineering material has an effect of purifying the environment. Compared with common concrete, the concrete added with the graphene has the advantages that water molecules, chloride ions, carbon dioxide gas and the like are reduced, and the durability of the concrete is improved. The preparation method disclosed by the invention is simple to operate, easy for industrial construction, free of additional equipment for auxiliary construction, small in construction error and capable of keeping product molding.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a graphene-reinforced concrete and a preparation method thereof. Background technique [0002] Concrete is the most widely used engineering material for various types of infrastructure construction in engineering. Reinforced concrete structures are widely used in various fields such as civil engineering, water conservancy, ports, and bridges. Concrete will be damaged in natural conditions and building use, such as freeze-thaw damage to expand the concrete, carbonation and chloride ion erosion affect the bonding between the pH value of the concrete and the substrate, and the peeling and missing of the outer layer will make the steel bars in the inner layer of the concrete Rust, reducing the load-bearing capacity and service life. Although many new structural forms will appear in the future with the emergence of new engineering materials, the superiority and wide applicability of...

Claims

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Application Information

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IPC IPC(8): C04B28/04
CPCC04B28/04C04B2201/50C04B14/022C04B14/06Y02W30/91
Inventor 张英姿陈国芳阮世华杨明谦王彦泽
Owner HARBIN INST OF TECH AT WEIHAI
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