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High-strength aluminate cement adhesive for insulators

A cement adhesive and aluminate cement technology, which is applied in the field of power transmission and transformation insulation materials, can solve the problems of difficulty in purchasing retarders, low strength, and loss of adhesive fluidity, and achieve improved surface appearance, increased strength, and reduced The effect of crack loss

Pending Publication Date: 2021-02-19
南京电气绝缘子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the deficiencies of the prior art, the present invention provides a high-strength aluminate cement adhesive for insulators, which can solve the

Method used

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  • High-strength aluminate cement adhesive for insulators

Examples

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Comparison scheme
Effect test

Embodiment 1

[0021] Example 1: A high-strength aluminate cement adhesive for insulators, the adhesive is composed of the following components by weight percentage, wherein: 60.9% of aluminate cement, 22.73% of glued sand, and the mineral admixture is composed of microsilica fume , superfine slag compounded, the percentage of microsilica powder in the total mass of the cement is 2.10%, the percentage of ultrafine slag in the total mass of the cement is 2.00%; basalt fiber is 0.06%, and the superplasticizer is made of standard polymer Carboxylic acid superplasticizer and slump-preserving polycarboxylate superplasticizer are compounded. The standard polycarboxylate superplasticizer accounts for 0.03% of the total mass of the adhesive, and the slump-preserving polycarboxylate superplasticizer accounts for 0.03% of the total mass of the adhesive. The percentage of the total mass of the mixture is 0.03%, the plasticizer is compounded by sodium citrate and sodium gluconate, the percentage of sodiu...

Embodiment 2

[0027] Example 2: A high-strength aluminate cement adhesive for insulators, the adhesive is composed of the following components by weight percentage, wherein: 58.93% of aluminate cement, 24.68% of glued sand, and the mineral admixture is silica fume , the percentage of microsilica fume in the total mass of the cement is 2.10%, the percentage of the expansion agent in the total mass of the cement is 2.00%, the basalt fiber is 0.05%, and the superplasticizer is composed of standard polycarboxylate water reducer and slump-preserving type Polycarboxylate superplasticizer is compounded. The percentage of standard polycarboxylate water reducer in the total mass of the adhesive is 0.02%, and the percentage of slump-preserving polycarboxylate water reducer in the total mass of the adhesive is 0.07%. The plasticizer is sodium citrate, and the percentage of sodium citrate accounting for the total mass of the adhesive is 0.07%, and water is 12.08%.

[0028] In this example, Al in alumin...

Embodiment 3

[0034] Embodiment 3: A high-strength aluminate cement adhesive for insulators, the adhesive is composed of the following components in weight percentage, wherein: aluminate cement 62.88%, glued sand 20.40%, mineral admixture consists of microsilica fume , ultra-fine slag compounded, micro-silica fume accounts for 2.10% of the total mass of the adhesive, ultra-fine slag accounts for 2.00% of the total mass of the adhesive, 0.04% of basalt fiber, and the superplasticizer is made of standard polycarboxylic acid It is composed of water reducer and slump-preserving polycarboxylate water-reducer. The standard polycarboxylate water-reducer accounts for 0.06% of the total mass of the adhesive, and the slump-retaining polycarboxylate water-reducer accounts for 0.06% of the total mass of the adhesive. The percentage of plasticizer is 0.02%, the plasticizer is compounded by sodium citrate and sodium gluconate, the percentage of sodium citrate in the total mass of the cement is 0.03%, the ...

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Abstract

The invention discloses a high-strength aluminate cement adhesive for insulators. The adhesive is composed of the following components in percentage by weight: 57%-63% of aluminate cement, 19%-25% ofcementing sand, 2%-6% of mineral admixture, 0-4% of expanding agent, 0.03%-0.08% of basalt fiber, 0.04%-0.12% of superplasticizer, 0.05%-0.10% of plasticizer and 11%-14% of water. The problems that the aluminate cement adhesive retarder is difficult to purchase, long in delivery period and short in quality guarantee period are solved, and the expiration waste phenomenon is reduced; the matching ratio of standard and slump-retaining water reducing agents in the superplasticizer is adjusted according to seasonal weather changes, so that the proper fluidity of the adhesive during assembly is ensured, and the loss of fluidity over time is reduced; due to the addition of the superplasticizer, the water consumption of the adhesive is reduced, the strength of the adhesive is improved, and the production requirement of a high-tonnage insulator can be met; and the surface appearance of the adhesive is also improved, and the cracking loss is reduced.

Description

technical field [0001] The invention relates to a high-strength aluminate cement adhesive for insulators, which belongs to the field of insulating materials for power transmission and transformation. Background technique [0002] Both ceramic and glass insulators are composed of insulating parts, metal accessories and cement adhesive. my country's insulator production is accustomed to using Portland cement adhesives, and foreign companies mostly use aluminate cement adhesives. Because aluminate cement adhesive has the characteristics of short product maintenance period and low investment, and many customers in overseas markets have designated it for use, domestic aluminate cement adhesive has been gradually promoted and applied in recent years. [0003] The setting speed of aluminate cement is fast, and special retarder must be used in the preparation of cement. At present, the special retarder is produced by a foreign company. It is difficult to purchase, the delivery tim...

Claims

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Application Information

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IPC IPC(8): C04B28/06
CPCC04B28/06C04B2201/52C04B14/06C04B18/141C04B18/146C04B22/14C04B22/064C04B22/143C04B24/06C04B2103/302
Inventor 蔡海龙罗丽鹰石玉秉徐永康
Owner 南京电气绝缘子有限公司