Cement adhesive for large-tonnage glass insulator

A technology for glass insulators and cement adhesives, applied in the field of cement adhesives, can solve the problems of low fluidity, reduce water-binder ratio, etc., and achieve the effects of improving strength, increasing slurry compactness, and meeting the requirements of production glue packaging process.

Pending Publication Date: 2021-03-02
南京电气绝缘子有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the deficiencies of the prior art, the present invention provides a cement adhesive for large-tonnage glass insulators, which reduces the water-binder ratio, solves the problem of low fluidity, increases the compactness of the slurry, and improves the cement adhesive. Strength, meeting production needs and performance needs

Method used

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  • Cement adhesive for large-tonnage glass insulator

Examples

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Comparison scheme
Effect test

Embodiment 1

[0016] Example 1: A cement adhesive for large-tonnage glass insulators, which consists of the following components in weight percentages, including 51.5% cement, 28.6% glued sand, 2.06% silica fume, 0.015% anti-crack fiber, and 6.7% micropowder , plastic retaining agent 0.026%, water reducing agent 0.26%, water 10.8%.

[0017] In this embodiment, the cement is Portland cement.

[0018] In this embodiment, the gelatinized sand is river sand, and the mesh size of the river sand is 50 mesh.

[0019] In this embodiment, the silicon dioxide content in silica fume is 92%.

[0020] In this embodiment, the crack-resistant fibers are polypropylene fibers, and the fiber length of the polypropylene fibers is 5 mm.

[0021] In this embodiment, the micropowder is microbeads.

[0022] In this embodiment, the plastic retaining agent is sodium gluconate.

[0023] In this embodiment, the water reducer is a low-foam naphthalene-based water reducer powder.

Embodiment 2

[0024] Example 2: A cement adhesive for large-tonnage glass insulators, which consists of the following components in weight percentages, including 48.6% cement, 32.4% glued sand, 1.94% silica fume, 0.015% anti-crack fiber, and 6.81% micropowder , plastic retaining agent 0.015%, water reducing agent 0.34%, water 9.86%.

[0025] In this embodiment, the cement is Portland cement.

[0026] In this embodiment, the cemented sand is quartz sand, and the mesh number of the quartz sand is 60 mesh.

[0027] In this embodiment, the silicon dioxide content in silica fume is 95%.

[0028] In this embodiment, the crack-resistant fibers are polypropylene fibers, and the fiber length of the polypropylene fibers is 6 mm.

[0029] In this embodiment, the micropowder is composed of precipitated silica micropowder and microbeads, wherein the weight percent of microbeads is 6.32%, and the weight percent of precipitated silica micropowder is 0.49%.

[0030] In this embodiment, the plastic retai...

Embodiment 3

[0032] Example 3: A cement adhesive for large-tonnage glass insulators, which is composed of the following components in weight percentages, including 46.5% cement, 31.0% glued sand, 1.86% silica fume, 0.014% anti-crack fiber, and 10.69% micropowder , plastic retaining agent 0.014%, water reducing agent 0.32%, water 9.53%.

[0033] In this embodiment, the cement is Portland cement.

[0034] In this embodiment, the glued sand is river sand, and the mesh size of the river sand is 70 mesh.

[0035] In this embodiment, the silicon dioxide content in silica fume is 93%.

[0036] In this embodiment, the crack-resistant fibers are polypropylene fibers, and the fiber length of the polypropylene fibers is 6 mm.

[0037] In this embodiment, the micropowder is composed of slag micropowder and microbeads, wherein the weight percent of slag micropowder is 4.65%, and the weight percent of microbeads is 6.04%.

[0038] In this embodiment, the plastic retaining agent is sodium gluconate. ...

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Abstract

The invention discloses a cement adhesive for a large-tonnage glass insulator. The cement adhesive is composed of the following components in percentage by weight: 40-60% of cement, 15-30% of cementing sand, 3-10% of silica fume, 0.03% of anti-cracking fiber, 5-20% of micro powder, 0.03-0.08% of plastic retaining agent, 0.2-1.0% of water reducing agent and 7-12% of water. According to the invention, the water-binder ratio is reduced, the problem of low fluidity is solved, the slurry compactness is increased, the strength of the cement adhesive is improved, the cement adhesive is used on a batch production line, the production and binding process requirements are met, the appearance defects such as bubbles, cracks and the like on the surface of the product are avoided, and the mechanical property requirements of 420-1000kN large-tonnage glass insulator products are met.

Description

technical field [0001] The invention relates to a cement adhesive for large-tonnage glass insulators, belonging to the field of cement adhesives. Background technique [0002] 420-1000kN large-tonnage glass insulators require high mechanical properties. Conventional cement adhesives can no longer meet the strength requirements. The high-strength cement grouting materials on the market cannot meet the process requirements of continuous automatic production. The production process can also meet the mechanical performance requirements of large-tonnage glass insulators. Contents of the invention [0003] In order to solve the deficiencies of the prior art, the present invention provides a cement adhesive for large-tonnage glass insulators, which reduces the water-binder ratio, solves the problem of low fluidity, increases the compactness of the slurry, and improves the cement adhesive. Strength, to meet production needs and performance requirements. [0004] The technical sc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/00637C04B18/146C04B16/0633C04B18/141C04B14/06C04B14/28C04B24/10C04B24/06C04B2103/302
Inventor 罗丽鹰蔡海龙石玉秉
Owner 南京电气绝缘子有限公司
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