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Conducting concrete, manufacturing method thereof and application

A conductive concrete and concrete technology, applied in the field of grounding systems, can solve the problems of difficult grounding trench excavation construction, inability to meet permanent requirements, hidden dangers of line operation safety, etc., to save material and labor costs, good operability, and reduce The effect of construction difficulty

Active Publication Date: 2017-03-15
GEZHOUBA GRP ELECTRIC POWER COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In areas with high thunderstorms, the line tripping and maintenance of the wind farm due to lightning strikes the line, which has caused great losses from the perspective of economy and safety. At present, the grounding of the wind farm collector line is generally combined with the laying of horizontal grounding bodies and hammer grounding bodies. In view of the current construction conditions, there are generally the following problems. First, the maintenance of the grounding body cannot meet the permanent requirements, that is, 40 years; second, in areas with high soil resistivity, there are many surface rocks. Difficult areas for excavation and construction of grounding trenches; third, the construction of grounding trenches in recent years has occupied forest land, and more conventional land; fourth, during the construction of grounding trenches, some grounding trenches cross farmland, mountains, forests, etc. After the construction is completed, people in In daily production, it is easy to damage the grounding device, causing great safety hazards to the operation of the line

Method used

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  • Conducting concrete, manufacturing method thereof and application
  • Conducting concrete, manufacturing method thereof and application
  • Conducting concrete, manufacturing method thereof and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A kind of conductive concrete, described concrete comprises the following components by weight:

[0054] 6 parts of carbon fiber, 43 parts of steel fiber, 68 parts of graphite, 1.38 parts of dispersant, 10 parts of preservative, and 5.2 parts of water reducing agent.

[0055] Preferably, the fixed carbon content of the graphite is greater than 99%;

[0056] The carbon fiber is polyacrylonitrile chopped carbon fiber, and the carbon fiber density is 1800kg / m 3, fiber length 6mm, tensile strength 3.5Gpa, carbon content 95%, bulk density 350g / L, water content 0.2%;

[0057] The steel fiber has a tensile strength of 2900Mpa and a density of 7800kg / m 3 Copper-coated microfilament steel fibers;

[0058] The dispersant is methyl cellulose.

[0059] The fine aggregate in the concrete is river sand with a particle size less than 5mm, and the coarse aggregate is gravel with a particle size ≤ 25mm; the cement in the concrete is P·II 42.5 grade ordinary portland cement.

[0060...

Embodiment 2

[0071] A kind of conductive concrete, described concrete comprises the following components by weight:

[0072] 9 parts of carbon fiber, 50 parts of steel fiber, 78 parts of graphite, 1.58 parts of dispersant, 15 parts of expansion preservative, and 6 parts of water reducer.

[0073] Preferably, the fixed carbon content of the graphite is greater than 99%;

[0074] The carbon fiber is polyacrylonitrile chopped carbon fiber, and the carbon fiber density is 1800kg / m 3 , fiber length 6mm, tensile strength 4.5Gpa, carbon content 93%, bulk density 300g / L, water content 0.25%;

[0075] The steel fiber has a tensile strength of 2900Mpa and a density of 7800kg / m 3 Copper-coated microfilament steel fibers;

[0076] The dispersant is methyl cellulose.

[0077] Preferably, the fine aggregate in the concrete is river sand with a particle size < 5mm, and the coarse aggregate is gravel with a particle size ≤ 25mm; the cement in the concrete is P·II 42.5 grade ordinary Portland cement ....

Embodiment 3

[0088] A kind of conductive concrete, described concrete comprises the following components by weight:

[0089] 8 parts of carbon fiber, 46 parts of steel fiber, 72 parts of graphite, 1.47 parts of dispersant, 12 parts of preservative, and 5.88 parts of water reducing agent.

[0090] The fixed carbon content of the graphite is greater than 99%;

[0091] The carbon fiber is polyacrylonitrile chopped carbon fiber, and the carbon fiber density is 1800kg / m 3 , fiber length 6mm, tensile strength 3.5-4.5Gpa, carbon content ≥ 93%, bulk density ≥ 300g / L, water content < 0.3%;

[0092] The diameter of the steel fiber is 0.2mm, the length is 6mm, the tensile strength is > 2800Mpa, and the density is 7800kg / m 3 Copper-coated microfilament steel fibers;

[0093] The dispersant is methyl cellulose.

[0094] The high-efficiency water reducer ensures the fluidity of concrete, and is produced by Jiangsu Bote New Material Co., Ltd. Polycarboxylate high-performance, polycarboxylate-base...

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Abstract

The invention belongs to the field of grounding systems, and particularly relates to conducting concrete, a manufacturing method thereof and an application. The concrete comprises, by weight, 6-9 parts of carbon fibers, 43-50 parts of steel fibers, 68-78 parts of graphite, 1.38-1.58 parts of dispersing agents, 10-15 parts of preservative and 5.2-6 parts of water reducing agents. The concrete solves the problems that grounding resistance value requirements are difficultly met by a common grounding method in partial areas, a common grounding system is high in construction difficulty due to topographical restrictions, construction difficulty is effectively reduced, grounding efficiency is improved, and operability is good.

Description

technical field [0001] The invention belongs to the field of grounding systems, and in particular relates to a conductive concrete and its production method and application. Background technique [0002] In areas with high thunderstorms, the line tripping and maintenance of the wind farm due to lightning strikes the line, which has caused great losses from the perspective of economy and safety. At present, the grounding of the wind farm collector line is generally combined with the laying of horizontal grounding bodies and hammer grounding bodies. In view of the current construction conditions, there are generally the following problems. First, the maintenance of the grounding body cannot meet the permanent requirements, that is, 40 years; second, in areas with high soil resistivity, there are many surface rocks. Difficult areas for excavation and construction of grounding trenches; third, the construction of grounding trenches in recent years has occupied forest land, and m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B14/02E04H12/12C04B111/94
CPCC04B14/024C04B28/04C04B2111/94E04H12/12C04B14/386C04B14/48C04B2103/408C04B2103/61C04B2103/302C04B14/06C04B18/12
Inventor 张鹏柳溪赵德强朱凡
Owner GEZHOUBA GRP ELECTRIC POWER COMPANY
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