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Novel graphene concrete and preparation method thereof

A graphene and concrete technology, applied in the field of materials, can solve the problems of low flexural strength and poor toughness, and achieve the effects of stable setting time, balanced slump and high physical and chemical strength

Active Publication Date: 2022-05-13
广州盛门新材料科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, concrete itself also has disadvantages such as low flexural strength and poor toughness.

Method used

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  • Novel graphene concrete and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0019] 1. Preparation of cationic modified graphene

[0020] 1) Take 4kg of graphene oxide, put 100kg of pure water into the mixing tank, stir at 450r / min for 30 minutes, then move the material to a double-layer glass reactor and ultrasonically for 30 minutes, the ultrasonic power is 1.2kW / h.

[0021] 2) Start the constant temperature device, slowly add 10 kg of acrylamide in a water bath at a temperature of 80° C., and react for 24 hours at a speed of 600 r / min.

[0022] 3) Add 8 kg of cationic polyacrylamide to the above materials, stir evenly, and bathe at 60° C. for 10 hours.

[0023] 4) Add 5kg of allylamine and 6kg of acrylate to the cation-modified graphene premix to obtain a cation-modified graphene mixture.

[0024] 2. Preparation of new graphene concrete

[0025] 1) 10kg of cation-modified graphene mixed solution, 40kg of cement, and 30kg of water are fully mixed;

[0026] 2) Add 100kg of gravel and 50kg of fine sand and stir well.

Embodiment 2

[0028] The difference between embodiment 2 and embodiment 1 is that the cationic polymer is polydiallyl dimethyl ammonium chloride.

Embodiment 3

[0030] The difference between embodiment 3 and embodiment 1 is that propionamide is used to prepare cationic modified graphene organic amine.

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Abstract

The invention discloses novel graphene concrete. The novel graphene concrete comprises a graphene mixed solution, cement and aggregate, wherein the graphene mixed solution is a cation modified graphene mixed solution; wherein the aggregate is composed of coarse aggregate and fine aggregate. The preparation method of the concrete comprises the following steps: 1) mixing graphene oxide with water, and performing ultrasonic treatment to obtain dispersion liquid; mixing graphene oxide with organic amine, and carrying out water bath reaction to obtain aminated graphene; mixing the aminated graphene with a cationic polymer, and reacting to obtain a cationic modified graphene premixed solution; adding allylamine and acrylic ester into the cation modified graphene premixed liquid to obtain cation modified graphene mixed liquid; and 2) fully mixing the cement, the water and the cation modified graphene mixed solution, adding the fine aggregate, fully stirring, adding the coarse aggregate, and fully mixing to obtain the concrete.

Description

technical field [0001] The invention relates to the field of material technology, in particular to a novel graphene concrete and a preparation method thereof. Background technique [0002] Concrete is one of the most widely used building materials. It has become the most successful structural engineering material because of its wide source of materials, adjustable mechanical properties, good plasticity before hardening, and reinforcement with steel bars. However, concrete itself also has disadvantages such as low flexural strength and poor toughness. Therefore, it is necessary to continuously promote the development of ultra-high performance concrete materials in order to be suitable for emerging structural applications in the future. [0003] Graphene is a new material with a single-layer sheet structure composed of carbon atoms. It is a planar film composed of carbon atoms with sp2 hybrid orbitals forming a hexagonal honeycomb lattice, a two-dimensional material with a t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/02
CPCC04B28/02C04B2201/50C04B2201/32C04B14/022C04B24/124C04B24/2652C04B24/121C04B24/045C04B14/02C04B14/06C04B24/2682Y02W30/91
Inventor 陈稳城赵子维杨剑
Owner 广州盛门新材料科技有限公司
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