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A carbon fiber reinforced cover plate for tunnel

A carbon fiber and cover plate technology, which is applied in tunnels, tunnel linings, shaft equipment, etc., can solve problems such as poor durability, and achieve the effects of strong corrosion resistance, high density, and strong toughness

Active Publication Date: 2022-08-02
山西省交通科技研发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fiberglass cover panels are reinforced with fiberglass, but are less durable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Matrix material:

[0026] Component A: bisphenol A epoxy resin 95g; starch water-absorbent resin 5g; diluent (501) 15g; coupling agent (KH-560) 8g, toughener (ultrafine fully vulcanized powder rubber) 10g;

[0027] Component B: Cardanol modified phenalkamine (wherein the amine is polyethylene polyamine and isophorone diamine with a molar ratio of 1:1) 60g; polyetheramine (D230) 5g; polyamide 5g; diluent ( 692) 10g;

[0028] Component C: cement (P·O42.5) 100g; steel slag powder 25g; river sand 240g; machine-made sand 120g; foundry waste sand 40g; Among them, the surface treatment of the foundry waste sand is carried out before use: first, the foundry waste sand is crushed, and the foundry waste sand with a particle size of 0.6-2.36mm is screened for high temperature treatment at 450 ° C for 1 hour, and after cooling, it is mixed with the coupling agent solution at a mass of 100:1 than mix and disperse. The volume ratio of the coupling agent to the ethanol solvent in t...

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Abstract

The invention discloses a carbon fiber reinforced cover plate for tunnels. The cover plate is formed by pouring the skeleton structure of carbon fiber reinforced materials through the matrix material; the matrix material is composed of three parts: a mixed resin system, a multi-component curing agent compound system, and a filler system. The cover plate prepared by the method has the advantages of high strength, good toughness, excellent corrosion resistance and small self-weight. In engineering and other application fields with high requirements on performance and self-weight, it can effectively solve the problems of existing cover plates that have been damaged during transportation and seriously affect durability after damage.

Description

technical field [0001] The invention belongs to the technical field of cover plate materials for tunnels, and in particular relates to a carbon fiber reinforced cover plate for tunnels. Background technique [0002] During the operation of tunnels in my country, there are common phenomena such as blockage, siltation and damage of drainage ditch. Poor drainage, long-term groundwater scouring and erosion will lead to the deterioration of the state of the tunnel base structure. The operation of the tunnel and the maintenance and repair of the tunnel have brought many difficulties. After long-term observation and monitoring of existing tunnels, it is found that most of the current cover plates will fall off after one or two years, and be corroded, which has a great impact on the performance and appearance of the cover plates. Especially in the northern region, after one or two years of freezing and thawing in winter and spring, after the skin is peeled off and damaged, there are...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04E21D11/00E21F17/00C04B111/34
CPCC04B28/04E21D11/003E21F17/00C04B2111/343C04B2201/50C04B2111/00017C04B18/142C04B14/06C04B18/14C04B24/281C04B24/38C04B24/42C04B18/22C04B24/302C04B24/121C04B24/008C04B24/32C04B24/287C04B2103/0068
Inventor 崔东霞李登华蔡丽娜毋晓琛费文常诚王超郭赢赢李丹梅林浩张大海燕海兵
Owner 山西省交通科技研发有限公司