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.

frp composite strengthening

Comparing with other methods

Method	Carbon fiber	Reinforced concrete	Steel shirt
Summary	The carbon sheet is attached directly to the surface of the concrete structure	Concrete is added over the existing concrete surface to accommodate additional reinforcement, increasing the cross section of the existing concrete structure	A 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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