Pre-Cast Concrete

Maccaferri Wirand^® steel fibers and FibroMac™ synthetic fibers offer significant advantages when used in pre-cast concrete. Customizing the fiber types and blend within the concrete mix to suit the concrete end-product brings many benefits. Wirand^® Steel Fiber Reinforced Concrete (SFRC) increases the durability, ductility, shear impact resistance and fire resistance of the pre-cast concrete products. Other benefits include:

Reduced complex steel reinforcement detailing
Reduced damage during demoulding
Reduced damage during handling and transportation
Improved freeze-thaw / thermal resistance
Reduced early-age cracking
Earlier demoulding / shorter mould times
More slender products using less concrete

A major use of Wirand^® is in pre-cast concrete segments for tunneling applications. Whether small diameter tunnels for services, or large diameter for major infrastructure, Maccaferri can help. Wirand^® steel fibers structurally reinforce the segments, in some instances enabling the complete removal of all traditional steel reinforcement.

FibroMac™ synthetic fibers are added to segments in order to dramatically increase the concrete resistance to high temperatures. This reduces explosive spalling and damage to tunnel linings exposed to fire.

Using renowned testing and research establishments, Maccaferri has repeatedly refined tunnel segment designs through the use of Wirand^®, saving clients money on projects.

Applications for Maccaferri Pre-Cast Concrete: