Carbon fiber fabric(CFRP) for concrete strengthening

The bonding of carbon fiber reinforced polymer(CFRP) sheets to the concrete tension zone can play the same role as the tension reinforcement and improve the bearing capacity of concrete structures.

Carbon fiber fabric(CFRP) for concrete strengthening

Carbon fiber fabric(CFRP) for concrete strengthening


Structural repair and reinforcement:

  • beam

  • column

  • Floor tile

  • Wall


In the following structure:

  • High-rise commercial buildings

  • Industrial plant

  • Warehouse

  • Bridge

  • Tunnel

  • Pipelines

  • Sewers

  • Fireplaces


Benefit of carbon fiber strengthening

  • Great resistance

  • Increasing flexural strength and cutting resistance

  • Very resistant to fatigue

  • It can be packaged to provide flexibility for its applications

  • Fast installation, reduce labor costs

  • Corrosion resistance: It can be used in various corrosive chemical environments

  • History has been proved in many applications

  • Lightweight: Increase the minimum weight of the structure only

  • The structure of the system is very few, and the size of the structure has the least influence

  • Easy to use: Very light and can be used in hard-to-access areas


Durability

Exceeding the 50-year structural durability requirement contained in the building code, the conditions are as follows:

(a) Use in full accordance with the manufacturer's recommendations.

(b) Used within the design parameters indicated in this data sheet.

(c) Use in conjunction with other approved construction systems and materials.


frp composite strengthening


Comparing with other methods



MethodCarbon fiberReinforced concreteSteel shirt
SummaryThe carbon sheet is attached directly to the surface of the concrete structureConcrete is added over the existing concrete surface to accommodate additional reinforcement, increasing the cross section of the existing concrete structureA steel plate is applied to the concrete surface with resin and mechanical fixings
Application and features

New method

Non-corrosive and durable

Especially effective to improve the flexural capacity

There is no appreciable increase in volume of the structure (approximately 1.0 mm thick)

Very widespread method of use

Increases the general dead load, so you have to check the substructure to assess the need for shoring the base

The new reinforcement must be anchored correctly to produce the desired effect

Very widespread method of use

The steel plate tends to rust if there is no maintenance, which requires a period of painting and repair

Degree of ease in the execution of work

The simplest and safest to apply

It can be applied on concrete surfaces of all kinds.

It does not require heavy machinery with what can be used in any space

Rapid acquisition of structural strength

Needs repair of peeling concrete surface

Requires a concrete placement without distortion

Requires access for concrete deposit (eg, truck)

Slow acquisition of structural strength

Difficult to apply in confined spaces

Requires the access of a crane, etc.

Requires the welding of steel plate joints

Relative average installation rate

Rapid acquisition of structural strength





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Tấm sợi carbon đơn hướng, cường độ cao được bão hòa trước để tạo thành tấm polyme gia cường sợi carbon (CFRP) dùng để gia cố các cấu kiện bê tông kết cấu.

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