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Nanometer-modified fiber reinforced plastic reinforcement sea sand concrete fence board and preparation method thereof

A nano-modification, concrete technology, applied in the field of water conservancy engineering, can solve the problems of reducing the service life of the overall structure, the steel bars in the fence panel are easy to corrode, and the promotion and application are inconvenient, achieving good resistance, good corrosion resistance, and promoting ecological environment protective effect

Active Publication Date: 2013-04-17
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to harsh environments such as humidity, temperature changes, and chloride ions, the steel bars in the fence panels are prone to corrosion, which greatly reduces the service life of the overall structure. At the same time, the high maintenance costs bring inconvenience to its wide-scale promotion and application.

Method used

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  • Nanometer-modified fiber reinforced plastic reinforcement sea sand concrete fence board and preparation method thereof
  • Nanometer-modified fiber reinforced plastic reinforcement sea sand concrete fence board and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: A kind of nano-modified FRP bar strengthens the sea sand concrete fence board, comprises the following components by mass percentage: glass fiber 70%, epoxy resin (bisphenol A type) 25.5%, nanoclay 0.6%, Accelerator (2-benzyl-4-methylimidazole) 0.45%, inhibitor 0.05%, curing agent (ethylenediamine) 0.4%, ethylene glycol 3%. The strength grade of sea sand concrete is designed to be C40.

[0027] The preparation process specifically includes the following steps:

[0028] 1) Select the raw materials of nano-modified FRP bars, weigh them according to the mass percentage of each raw material, and set aside;

[0029] 2) Disperse the nano-clay in the ethylene glycol solvent, and ultrasonically disperse the nano-clay while mechanically stirring; then stir the dispersed nano-clay and resin evenly to obtain a modified resin, and then impregnate the glass fiber into the added In the resin containing curing agent, accelerator, etc., it is cured by heating; finally, ...

Embodiment 2

[0033] Embodiment 2: A kind of nano-modified FRP bar strengthens the sea sand concrete fence board, comprises the following components by mass percentage: glass fiber 65%, vinyl unsaturated polyester 29.5%, carbon nanotube 0.06%, accelerator (2-benzyl-4-methylimidazole) 0.3%, polymerization inhibitor 0.04%, curing agent (ethylenediamine) 0.6%, ethylene glycol 4.5%. The strength grade of sea sand concrete is designed to be C60.

[0034] The preparation method is the same as in Example 1.

Embodiment 3

[0035] Example 3: A nano-modified FRP bar reinforced sea sand concrete fence, including the following components by mass percentage: glass fiber 75%, epoxy resin (bisphenol A type) 21.5%, carbon nanotube 0.045% , accelerator (2-benzyl-4-methylimidazole) 0.15%, polymerization inhibitor 0.045%, curing agent (ethylenediamine) 0.3%, ethylene glycol 2.96%. The strength grade of sea sand concrete is designed to be C30.

[0036] The preparation method is the same as in Example 1.

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Abstract

The invention discloses a nanometer-modified fiber reinforced plastic reinforcement sea sand concrete fence board which is mainly made of sea sand concrete and nanometer-modified FRP (Fiber Reinforced Plastic) reinforcements, wherein the nanometer-modified FRP reinforcements are mainly prepared from the following raw materials in percentage by mass: 65-75 percent of fiber reinforce plastic, 21.5-29.5 percent of resin, 0.045-0.6 percent of nanometer material, 0.15-0.45 percent of accelerant, 0.04-0.05 percent of polymerization inhibitor, 0.3-0.6 percent of curing agent and 1.5-4.5 percent of ethylene glycol. The invention also discloses a preparation method of the nanometer-modified fiber reinforced plastic reinforcement sea sand concrete fence board. The FRP reinforcements in the nanometer-modified FRP reinforcement sea sand concrete fence board have the advantages of high strength, high mass ratio, small elastic modulus, good fatigue property, small stress relaxation, good corrosion resistance and the like; and sea sand is directly utilized, so that not only the economic and social effect is huge, but also the ecological environmental protection is favorably promoted.

Description

technical field [0001] The invention belongs to the technical field of water conservancy engineering, and relates to a nano-modified glass fiber (FRP for short) reinforced sea sand concrete fence board and a preparation method thereof, which are suitable for seawall reinforcement projects, reclamation protection projects, and can also be used for seaside road embankments Slope protection, etc. Background technique [0002] With the continuous development of the economy in my country's coastal areas, coastal projects such as coastal piers, coastal power plants, and land reclamation provide basic guarantees for social development such as transportation, energy, and space. The inundation of farmland, houses, and buildings in coastal areas has brought up a series of new issues for disaster prevention and mitigation in high-intensity development and utilization of coastal areas. [0003] In order to solve this problem, human beings have taken many measures. Among them, the seawal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/16C04B26/14C04B14/42
Inventor 刘小艳傅峰许悦蒋亚清夏苏鲁
Owner HOHAI UNIV
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