Fiber-reinforced concrete Fiber-reinforced concrete contains small synthetic, glass, or steel fibers distributed throughout the mix to help control cracking and improve toughness. The fibers supplement, but do not always replace, traditional reinforcement.
Fibers reduce the size and spread of shrinkage cracks that can develop as concrete cures. Depending on the project, fiber reinforcement may improve impact resistance and long-term durability while working alongside conventional reinforcing materials. The type and amount of fiber used depend on the project's engineering requirements.
Frequently Asked Questions About Fiber-reinforced concrete
What is fiber-reinforced concrete?
Concrete containing small synthetic, glass or steel fibers distributed through the mix to help control cracking and improve toughness.
What do the fibers do?
They reduce the size and spread of shrinkage cracks that form as concrete cures, and can improve impact resistance.
Do fibers replace rebar or wire mesh?
Not necessarily. Fibers supplement conventional reinforcement, and the engineering requirements determine whether traditional reinforcement is still needed.
How much fiber is used?
The type and dosage depend on the project's requirements and the fiber manufacturer's specification.