Graphene electric-conduction concrete

A technology of conductive concrete and graphene, which is applied in the field of concrete materials, can solve the problems that conductive concrete cannot balance mechanics and conductivity, performance requirements, and poor durability, and achieve the effects of good durability, good conductivity, and easy production

Inactive Publication Date: 2016-11-09
GUANGZHOU UNIVERSITY
View PDF6 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above problems, the present invention provides a graphene conductive concrete with good conductivity, high mechanical strength, stable resistivity and good durability, which solves the problem that the conductive concrete in the related art cannot meet the performance requirements of both mechanics and conductivity and has poor durability. The problem

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Graphene electric-conduction concrete

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The present invention is further described in conjunction with the following examples.

[0017] The graphene conductive concrete of the present embodiment includes Portland cement and sand, and graphene is added as a conductive phase to form graphene conductive concrete. The percentage of each component relative to the total mass of Portland cement and sand is: graphene 0.05~ 3. 0.5-6 for graphene dispersant, 0-0.75 for concrete superplasticizer.

[0018] Wherein, the graphene is a few-layer graphene oxide powder, and the parameters of the graphene are: the purity is greater than 95wt%, the thickness range is 1.0-1.77nm, the sheet diameter range is 10-50um, and the layer number range is 1-5. The specific surface area is 360-450m2 / g.

[0019] The Portland cement in this embodiment is 42.5 ordinary Portland cement.

[0020] Referring to Table 1, the raw materials and proportions of graphene conductive concrete and the corresponding resistivity and compressive strength a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
specific surface areaaaaaaaaaaa
Login to view more

Abstract

Provided graphene electric-conduction concrete comprises silicate cement and sand, and is characterized in that the graphene electric-conduction concrete is formed by adding graphene as an electric conduction phase, and the compositions comprise, relative to the total mass of cement and sand, 0.05-3 parts of graphene, 0.5-6 parts of a graphene dispersant, and 0-0.75 part of a water reducer for concrete. The graphene electric-conduction concrete possesses characteristics of good electric conductivity, high mechanical strength, stable electrical resistivity and good durability, and is applicable to electric heating ground surfaces, floors, and snow and ice thawing and the like.

Description

technical field [0001] The invention relates to the field of concrete materials, in particular to a graphene conductive concrete. Background technique [0002] Adding conductive materials in ordinary concrete, such as carbon fiber, steel fiber, steel slag, graphite, etc., can greatly improve its conductivity. In related technologies, conductive concrete mainly has the following deficiencies: [0003] (1) The performance requirements of both mechanics and conductivity cannot be taken into account. For example, adding graphite to concrete can increase the conductivity of concrete, but because graphite particles are easy to slip, the strength of graphite conductive concrete is often not high. It is difficult to meet the force requirements in the project; [0004] (2) The durability of electrical conductivity. For example, adding steel fiber or steel slag to concrete can increase the electrical conductivity of concrete, but it is still difficult to avoid corrosion of steel fib...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B14/02C04B111/94
CPCC04B28/04C04B2111/94C04B14/024C04B14/06C04B2103/302C04B2103/408
Inventor 黄永辉饶瑞刘春晖刘爱荣
Owner GUANGZHOU UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap