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A high-toughness, impact-resistant and wear-resistant repair material

A repairing material and high-toughness technology, applied in the field of high-toughness impact-resistant and wear-resistant repairing materials, can solve the problems of high operating technical requirements, easy cracking of the repairing layer, and high product price, and achieve strong energy absorption and cement-stone bonding damage. The effect of prolonging the process, improving the density and strength

Active Publication Date: 2022-03-08
安徽瑞和新材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Spraying polyurea elastomer has excellent comprehensive mechanical properties, but it requires high operating technology, high product price, and high repair cost
In addition, the application practice shows that the general linear expansion coefficient of resin mortar is larger than that of ordinary cement concrete. When it is applied in an environment with large temperature difference changes, the repair layer is easy to crack, and it will fall off from the base concrete and be destroyed.

Method used

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  • A high-toughness, impact-resistant and wear-resistant repair material
  • A high-toughness, impact-resistant and wear-resistant repair material
  • A high-toughness, impact-resistant and wear-resistant repair material

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Embodiment 1

[0025] A high-toughness anti-impact and wear-resistant repair material, comprising the following raw materials by mass: 310 parts of P·Ⅱ 52.5 cement, 8.0 parts of silicon powder, 53.0 parts of finely ground slag, 4.0 parts of nano-graphene, 587 parts of iron ore, 19.0 parts of steel fiber, 4.3 parts of plastic steel fiber, 1.1 part of basalt fiber, 0.1 part of KH560 silane coupling agent, 1.6 parts of rubber powder (fineness 24 mesh), 0.8 parts of plastic expansion agent, 6.0 parts of UEA expansion agent, magnesium oxide expansion agent 3.2 parts, 1.7 parts of polycarboxylate water reducer, 0.2 parts of polyether type defoamer.

Embodiment 2

[0027] A high-toughness anti-impact and wear-resistant repair material, comprising the following raw materials by mass: 320 parts of P·Ⅱ 52.5 cement, 8.0 parts of silicon powder, 54.3 parts of ground slag, 3.3 parts of nano-graphene, 573 parts of iron ore, 20.4 parts of steel fiber, 4.6 parts of plastic steel fiber, 1.3 parts of basalt fiber, 0.1 part of KH550 silane coupling agent, 1.8 parts of rubber powder (fineness 24 mesh), 0.9 parts of plastic expansion agent, 7.2 parts of UEA expansion agent, magnesium oxide expansion agent 3.0 parts, 1.8 parts of polycarboxylate water reducer, 0.3 parts of silicone defoamer.

Embodiment 3

[0029] A high-toughness anti-impact and wear-resistant repair material, comprising the following raw materials by mass: 335 parts of P.O4 2.5 cement, 7.2 parts of silicon powder, 49.0 parts of finely ground slag, 2.8 parts of nano-graphene, 557 parts of iron ore, 26.5 parts of steel fiber, 5.4 parts of plastic steel fiber, 1.5 parts of basalt fiber, 0.2 part of KH560 silane coupling agent, 2.5 parts of rubber powder (fineness 40 mesh), 0.7 part of plastic expansion agent, 7.0 parts of UEA expansion agent, magnesium oxide expansion agent 3.1 parts, 1.9 parts of polycarboxylate water reducer, 0.2 parts of polyether type defoamer.

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Abstract

The invention proposes a high-toughness anti-impact and wear-resisting repair material, mainly composed of Portland cement 26.0-36.0%, superfine powder 5.0-7.5%, iron ore 52.0-61.0%, fiber 1.5-4.0%, even 0.01-0.03% of joint agent, 0.1-0.3% of rubber powder, 0.8-1.2% of volume stabilizer, 0.1-0.2% of polycarboxylate water reducer, 0.01-0.03% of defoamer and other raw materials are mixed. The high-toughness anti-impact and wear-resistant repair material proposed by the present invention has the advantages of low price, convenient construction, high impact toughness, high anti-abrasion strength, high bond strength, low shrinkage, high crack resistance, linear expansion coefficient close to that of concrete, and no It will fall off from the base material, and can replace organic materials such as epoxy resin mortar.

Description

technical field [0001] The invention relates to a cement-based repair material, in particular to a high-toughness anti-impact and wear-resistant repair material suitable for repairing parts requiring high durability such as water scoured surfaces. Background technique [0002] The scouring wear and cavitation effect of high-speed sandy water on the flow surface of hydraulic concrete buildings will lead to large-scale erosion of surface concrete, and serious catastrophic accidents, so it has always been paid attention to. my country has started research on the application of anti-abrasion materials since the 1960s. The main idea is to improve the anti-abrasion performance of the concrete on the flow surface by increasing the compressive strength, and at the same time strengthen the protection of the concrete on the flow surface and timely correct the thin Layer abrasion damage is repaired. With the development and progress of material science, the compressive strength of anti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2201/50C04B14/06C04B18/141C04B14/024C04B18/12C04B14/48C04B14/46C04B16/06C04B20/0052C04B24/42C04B18/22C04B2103/302C04B2103/50
Inventor 陈国新祝烨然王冬徐志峰唐修生温金保刘兴荣杜志芹
Owner 安徽瑞和新材料有限公司
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