Electromagnetic shielding concrete and preparation method thereof

An electromagnetic shielding and concrete technology, applied in the field of concrete materials, can solve the problems of uneven distribution of graphite and coke, poor compatibility, inconvenient electromagnetic shielding function of concrete, etc., so as to improve the electromagnetic shielding performance, improve the electromagnetic shielding effect, improve the Corrosion resistant effect

Active Publication Date: 2020-12-22
成都精准混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the poor compatibility between graphite, coke and other components in concrete can easily lead to uneven distribution of graphite and coke in electromagnetic shielding concrete, making it difficult to better exert the electromagnetic shielding function of concrete

Method used

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  • Electromagnetic shielding concrete and preparation method thereof
  • Electromagnetic shielding concrete and preparation method thereof
  • Electromagnetic shielding concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1: a kind of electromagnetic shielding concrete preparation method, comprises the following steps:

[0039]S1 Additive preparation: Weigh 0.6kg of carbon fiber, add 0.5kg of steel fiber, 4kg of polycarboxylate water reducer, 0.3kg of attapulgite and 0.2kg of hydroxypropyl starch ether, and mix well to prepare the additive.

[0040] Preparation of S2 conditioner: sieve graphite powder with a sieve with a pore size of 50 μm, and pulverize particles with a particle size greater than 50 μm with a pulverizer until the particle size is not greater than 50 μm, and select graphite powder with a particle size not greater than 50 μm. Weigh 4 kg of graphite powder with a particle size not greater than 50 μm, add 1.1 kg of amantadine hydrochloride and 2 kg of aluminum sol (Hangzhou Jiupeng New Material Co., Ltd., model CY-L10A, median particle size D50 is 10 nm, solid content 20 %, the median particle size is the particle size corresponding to when the cumulative particl...

Embodiment 2

[0044] The difference between Example 2 and Example 1 is that the specifications of the aluminum sol used in Example 2 are different. Example 2 uses an aluminum sol with a median particle size of 30 nm and a solid content of 15%. Others are consistent with Example 1.

Embodiment 3

[0046] The difference between embodiment 3 and embodiment 1 is that attapulgite is not added in embodiment 3, and the others are consistent with embodiment 1.

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Abstract

The invention discloses electromagnetic shielding concrete and a preparation method thereof, belonging to the technical field of concrete materials. The electromagnetic shielding concrete is preparedfrom the following concrete raw materials in parts by weight: 450-550 parts of cement, 950-1050 parts of gravels, 500-600 parts of sand, 100-160 parts of zeolite powder and 120-180 parts of water. Theraw materials of the concrete also inclue an additive and a regulator. The additive comprises the following raw materials in parts by weight: 4-8 parts of carbon fibers and 2-8 parts of steel fibers.The regulator comprises the following raw materials in parts by weight: 35-45 parts of graphite powder, 8-15 parts of amantadine hydrochloride and 15-25 parts of alumina sol. The electromagnetic shielding concrete has the advantage of good electromagnetic shielding performance. The preparation method of the electromagnetic shielding concrete comprises the following steps: preparation of the additive, preparation of the regulator, mixing, preparation of the concrete and the like. The method has the advantage that the electromagnetic shielding performance of concrete can be improved.

Description

technical field [0001] The invention relates to the technical field of concrete materials, in particular to an electromagnetic shielding concrete and a preparation method thereof. Background technique [0002] With the development of the times, electronic communication technology has developed rapidly, and the resulting electromagnetic radiation pollution has attracted more and more attention. Especially in the field of military engineering, electromagnetic radiation brings certain interference to military facilities, and there are certain potential safety hazards. People began to study electromagnetic shielding concrete. Electromagnetic shielding concrete is the concrete that introduces components with electromagnetic shielding functions into the concrete, which can reduce the harm caused by external electromagnetic pollution to indoor equipment and human body. [0003] CN109336515A discloses a high-frequency electromagnetic shielding concrete and its preparation method. I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/00258C04B2201/50C04B14/047C04B14/386C04B14/48C04B14/024C04B14/102C04B24/121C04B22/04C04B24/38C04B2103/302Y02W30/91
Inventor 王小均刘作科程玉凤孙宇吴军
Owner 成都精准混凝土有限公司
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