Frequently Asked Questions about Carbon Fiber Strengthening

FAQ about Carbon Fiber Strengthening

1. How much high temperature can carbon fabric withstand?

It is divided into single and two-way fabric. The carbon fabric itself is fire-resistant, more than 1000 degrees, but it depends on the fire-resistant temperature of the glue, which is 65 degrees for the carbon glue.

2. The structural glue drops on the floor, how to remove it after curing?

Just burn it with boiling water

3. Can carbon fiber fabric be folded?

Carbon fiber fabric cannot be folded because of its strong tensile strength, poor shear resistance and easy breakage. Like a wrapped pillar, it bears tensile strength.

4. Must use primer and leveling glue before sticking carbon fabric?

The primer and leveling glue are not necessarily used when sticking to the carbon fabric. If there is a problem on the surface, use the dipping glue. If the surface of the substrate is flat, no primer can be used. HORSE's carbon glue has a primer-free instruction, provided that the primer-free requirement is met.

cfrp strengthening beam

5. Why are the fabrics used for building strengthening all carbon fiber unidirectional fabrics instead of plain or twill fabrics?

Because the required characteristics of reinforced carbon fiber fabric for construction is unidirectional force, tensile strength, plain or twill fabric is bidirectional, so the carbon fiber used for construction strengthening is unidirectional fabric.

6.20 cm, 1m long, how many carbon tows are there in 300g/㎡?

The weight standard (linear density) of carbon wire is 3k, 0.2g/m, so 12k is 0.8g/m. Now we need to calculate how many carbon tows are 20 cm long, 1m long, and 300g/㎡, which is 300g/1m=0.8x/1m*0.2m. So x=75 carbon filaments, then 12k is actually 75 12000 carbon filaments.

7. How does carbon fiber fabric play a role in structural strengthening?

Carbon fabric is equivalent to the role of steel bars. When the main strengthening of the beam is insufficient (that is, the bending resistance is insufficient), it is attached to the bottom or top of the corresponding beam for strengthening, which is equivalent to increasing the main strengthening of the beam.