With concrete grinder, abrasive paper machine to remove concrete surface laitance, oil and other impurities, component surface grinding smooth, to smooth, to a convex corner to grinding arc shape (R 20 mm or higher).

Clean the concrete surface and keep it dry.

Apply the underlying resin

The base resin is measured and stirred evenly, and the usage time is determined according to the actual temperature.

The underlying resin is brushed evenly onto the concrete surface, and after the solidification (curing time depends on the temperature of the site, refer to the drying), the next step is carried out.

Leveling the construction surface

The parts of the structural parts are applied with the leveling glue, and the application of leveling glue can be filled to reduce the height difference.

The corner also applies leveling glue to repair the arc, the radius is not less than 10mm.

Low paste

Cut carbon fiber cloth according to the design requirements and the number of layers. Unless specifically requested, the length of carbon fiber cloth should be within 3m.

Mix the infiltrating resin and apply it evenly to the paste area.

Pasting CFRP and roller rolling rolling repeatedly, remove air bubbles, and infiltrating glue fully saturated carbon fiber cloth, multilayer paste should repeat the above steps, such as carbon fiber cloth touch dry before being the next layer of the surface of the paste;

The length of lap length of carbon fiber cloth along the fiber direction shall not be less than 100mm, and the carbon fiber fabric ends shall be fixed with transverse carbon fiber or adhesive steel.

Protect, decorate

After reinforcement, the surface of the fiber should be protected by plaster or fire-resistant coating, and it can be decorated appropriately.

The characteristics of carbon fiber cloth

Light weight, small thickness, any length, free of other materials without preprocessing, convenient process, no pressure and lifting. Extremely high strength, flexible use for anti-bending, sealing and anti-bending strengthening of anti-alkali, anti-corrosion, anti-acid, long storage life and long operation period. Light weight, can operate in small space, not affect the normal use of high strength, have flexibility; A component that can wrap complex shapes. It is suitable for the permanent load of various member surfaces (beams, columns, pipes, pipes and walls) to resist creep, corrosion resistance and anti-seismic performance.

Performance item fibre categories

Tensile strength (Mpa)

Elastic modulus (Mpa)

Elongation (%)

Carbon fiber

High strength I

P 4900

Acuity 2.4 x 10 ^ 5

2.0 or higher

High strength II

P 4100

Acuity 2.1 x 10 ^ 5

1.8 or higher

Product model

Strength level

G (g / ㎡)

Theoretical thickness (mm)

Tensile strength (MPa)

Elastic modulus (GPa)

Elongation (%) SHB

Ⅰ - 200.

High strength grade Ⅰ

200

0.111

P 3400

P 240

1.7 or higher

Ⅰ - 300.

High strength grade Ⅰ

300

0.167

P 3400

P 240

1.7 or higher

Ⅱ - 200.

High strength grade Ⅱ

200

0.111

P 3000

P 210

1.5 or higher

Ⅱ - 300.

High strength grade Ⅱ

300

0.167

P 3000

P 210

1.5 or higher