Quality control of carbon fiber strengthening

1 Mixing ratio control of paste materials

The mixing ratio of the cementing material for pasting must be strictly controlled, it is the key link to ensure the quality and effect of pasting reinforcement.

2 Construction temperature control

Epoxy resin cures slowly under low temperature conditions, generally choose to apply under the temperature condition of 10-28. If you encounter construction when the temperature is low, you must take heating and curing measures, such as baking with ultraviolet lamps.

3 The pressure required for molding should be maintained

When strengthening concrete beams and slabs, most of them are carried out on the bottom surface of the beam, and pasted from the bottom up. If the pressure applied during molding is insufficient, it will cause insufficient adhesion to the concrete, resulting in the shedding of the reinforcing layer material, which will affect the reinforcement effect.

4 Paste control

Apply glue evenly. In order to avoid the formation of voids or degumming, the generated bubbles should be forced out and scraped out. Otherwise, it will affect the reinforcement effect of the concrete structure, resulting in poor bonding of certain parts, causing stress concentration in these parts during the use of the concrete structure, causing damage to the concrete structure.

Advantages of carbon fiber reinforcement

1 Chemical stability

Carbon fiber materials have excellent chemical stability. The material has strong functions of acid resistance, alkali resistance, salt resistance, ultraviolet resistance and waterproof. It also has good temperature stability.

2 Physical and mechanical properties

Carbon fiber materials have excellent physical and mechanical properties. The excellent physical and mechanical properties of the material make it effective in the reinforcement of bending, shear, compression, fatigue, earthquake, wind, crack and deflection of structures. And can achieve excellent reinforcement effect.

3 Lightweight, high strength

The carbon fiber material is light in weight and high in strength. The structure reinforced with it can be decorated without leaving traces of reinforcement and does not affect the appearance of the structure.

4 Simple construction process

The construction process of carbon fiber reinforced concrete technology is very simple and convenient. When it is used for reinforcement construction, it does not need to use large engineering instruments, but only needs to be operated with small electric tools. Therefore, it has the advantages of less work, less labor, short construction period, and faster progress during construction.

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