Conductive concrete doped with conductive material

A conductive concrete and conductive material technology, applied in the field of concrete, can solve the problems of high cost, corrosion, and non-use of carbon fiber, and achieve the effects of increasing the contact area, convenient construction, and reducing resistivity

Inactive Publication Date: 2012-05-30
马跃华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high cost of carbon fiber, metal powder and metal fiber will rust during the process of making concrete, so they are generally not used

Method used

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  • Conductive concrete doped with conductive material
  • Conductive concrete doped with conductive material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] In terms of weight percentage, after mixing 15% cement, 25% iron ore, 25% graphite, 15% pebbles and 20% water, mix the mixture with a cement mortar mixer for 3 to 5 minutes and pour it into Such as figure 1 In the mold shown, cover the pressure plate 1 and pressurize the pressure plate 1. The pressure P of the pressure plate 1 is 80-100kg / cm 2 , Press the mixture for 5-8 seconds and then demould to make conductive concrete. The compressive strength of conductive concrete is 17.2Mpa, and its resistivity is 1.1×10 -3 Ω·m.

Embodiment 2

[0016] In terms of weight percentage, after mixing 30% cement, 15% iron ore, 15% graphite, 30% pebble and 10% water, mix the mixture with a cement mortar mixer for 3 to 5 minutes and pour it into Such as figure 1 In the mold shown, cover the pressure plate 1 and pressurize the pressure plate 1. The pressure P of the pressure plate 1 is 80-100kg / cm 2 , Press the mixture for 5-8 seconds and then demould to make conductive concrete. The compressive strength of conductive concrete is 23.3Mpa, and its resistivity is 8.2×10 -3 Ω·m.

Embodiment 3

[0018] In terms of weight percentage, after mixing 25% cement, 20% iron ore, 20% graphite, 20% pebbles and 15% water, mix the mixture with a cement mortar mixer for 3 to 5 minutes and pour it into Such as figure 1 In the mold shown, cover the pressure plate 1 and pressurize the pressure plate 1. The pressure P of the pressure plate 1 is 80-100kg / cm 2 , Press the mixture for 5-8 seconds and then demould to make conductive concrete. The compressive strength of conductive concrete is 20.9Mpa, and its resistivity is 3.1×10 -3 Ω·m.

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Abstract

The invention provides conductive concrete doped with a conductive material, which is extrusion-shaped by mixing cement, iron ore, black lead, scree, and water; the weight percentage of the cement, the iron ore, the black lead, the scree, and the water are as follows: 15 to 30 percent of cement, 15 to 30 percent of iron ore, 15 to 25 percent of black lead, 15 to 30 percent of scree, and 10 to 20 percent of water. The conductive concrete doped with the conductive material has the characteristics of reduced resistance rate and high anti-pressing intensity. The concrete produced into a groundingpole can replace the traditional metal grounding pole.

Description

technical field [0001] The invention relates to concrete, in particular to conductive concrete mixed with conductive materials. Background technique [0002] The conductive fillers commonly used in the preparation of conductive concrete mainly include graphite, carbon fiber, metal powder and metal fiber. Due to the high cost of carbon fiber, metal powder and metal fiber will rust during the process of making concrete, so they are generally not used. [0003] The resistivity of ordinary concrete is about 1.6×10 6 Ω·m, after a certain amount of graphite is added to ordinary concrete, its resistivity drops sharply. When the graphite content reaches 25%, its resistivity can be reduced to 7.6Ω·m; when the graphite content reaches 25%, its resistivity basically does not decrease. And when adding 25% graphite in ordinary concrete, the compressive strength of concrete is reduced from 44.2Mpa to 1.46Mpa. [0004] If the concrete mixed with 25% graphite is used in the engineering ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B18/12C04B14/02C04B14/36C04B111/94
CPCC04B2111/00853C04B2111/94C04B28/02Y02W30/91C04B14/02C04B14/024C04B18/12C04B40/0259C04B2103/0014
Inventor 马跃华王西明
Owner 马跃华
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