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Reinforcing method of marine concrete

A marine concrete and mixture technology, which is applied in the field of reinforced concrete, can solve the problems of time-consuming and labor-intensive construction, shorten the construction time of low-temperature or humid marine concrete, etc., achieve the effect of not being easy to ultraviolet radiation, and solve the problem of long setting time and short setting time

Pending Publication Date: 2021-09-03
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the application provides a reinforcement method for marine concrete, which can effectively shorten the construction time of low-temperature or humid marine concrete reinforcement, and can well solve the time-consuming and labor-intensive shortage of actual reinforcement structural engineering

Method used

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  • Reinforcing method of marine concrete
  • Reinforcing method of marine concrete
  • Reinforcing method of marine concrete

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] The embodiment of the present application provides a damaged reinforced concrete member under simulated marine environment, and the manufacturing method includes the following steps:

[0050] S1, make reinforced concrete beam member (hereinafter referred to as RC member), the longitudinal tensile reinforcement of RC member is connected with electric wire;

[0051] S2. Half-immerse the RC member in step S1 into the electrolyte solution, connect the wire to the positive electrode of the power supply, and connect the negative electrode of the power supply to the cathode in the electrolyte solution, artificially accelerate the electrochemical corrosion of the RC member to obtain a damaged RC member with cracks formed.

[0052] Wherein, the above-mentioned electrolytic solution is configured with a mass fraction of 99% industrial NaCl solid to form a NaCl solution with a mass concentration of 5% as the electrolytic solution, and the electrolytic solution is contained in a cor...

Embodiment 2

[0059] The embodiment of the present application provides an inorganic resin, including the following methods:

[0060] Prepare according to the steps of the following recipe:

[0061] 1. Add fly ash, slag, sand and sodium carbonate solid into the mortar mixer, mix and stir for 165s to obtain the mixture;

[0062] 2. Add the following 85% water into the mixture and stir for 45s;

[0063] 3. Add the remaining 15% of water and sodium silicate into the above mixture, and stir for 45 seconds to obtain an inorganic resin.

[0064]

Embodiment 3

[0066] The embodiment of the present application provides an inorganic resin, including the following methods:

[0067] Prepare according to the steps of the following recipe:

[0068] 1. Add fly ash, slag, sand and sodium carbonate solid into the mortar mixer, mix and stir for 165s to obtain the mixture;

[0069] 2. Add the following 85% water into the mixture and stir for 45s;

[0070] 3. Add the remaining 15% of water and sodium silicate into the above mixture, and stir for 45 seconds to obtain an inorganic resin.

[0071]

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Abstract

The invention belongs to the technical field of reinforced concrete, and particularly relates to a reinforcing method of marine concrete. The reinforcing method of marine concrete comprises the following steps: step 1, arranging FRP ribs in cracks of marine concrete, forming FRP rib cloth on the cracks of the marine concrete, and installing a formwork; and step 2, performing cast-in-place on the FRP rib cloth by using inorganic resin, vibrating until the FRP rib cloth is compact, and performing maintenance to complete reinforcement of the marine concrete; wherein the inorganic resin comprises the following components in parts by weight: 59-290 parts of fly ash, 109-534 parts of slag, 253-1,230 parts of sand, 13-65 parts of an alkali activator, 20-100 parts of sodium silicate and 40-200 parts of water. The provided reinforcing method of marine concrete can effectively shorten construction time for reinforcing low-temperature or humid marine concrete, and can well overcome the defect that time and labor are wasted during actual reinforcing of structural engineering.

Description

technical field [0001] The application belongs to the technical field of reinforced concrete, and in particular relates to a reinforcement method of marine concrete. Background technique [0002] With the development of human social activities and science and technology, marine concrete (RC) components are increasingly used in some special structures in offshore and bay areas, such as harbor terminals, bay bridges, etc. The environment of these bridge structures Due to the presence of a large amount of chloride ions that are corrosive to marine concrete, and the influence of factors such as dry-wet cycles, the marine concrete components are damaged by corrosion of steel bars, concrete cracks, and peeling of the protective layer, resulting in certain safety hazards in the structure. [0003] The existing methods of enlarging the section, replacing concrete reinforcement and outsourcing steel are the main methods and technologies of traditional reinforced concrete reinforcemen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D37/00E02D29/00E02B1/00C04B28/26C04B22/10C04B111/72
CPCE02D37/00E02D29/00E02B1/00C04B28/26C04B22/10E02D2300/002E02D2300/0054E02D2300/0085C04B2111/72C04B2111/00637C04B18/08C04B18/141C04B14/068C04B22/062
Inventor 麦子桦谢建和李江林
Owner GUANGDONG UNIV OF TECH
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