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MasterFiber
MasterFiber 343
Hybrid Synthetic Fibre for Crack Control in the Early and Late Stages of Cast and Poured Concrete Applications
How Does MasterFiber 343 Work?
MasterFiber 343 is a blend of engineered synthetic macro and microfibres to control early age and hardened shrinkage cracking. MasterFiber 343 has been developed to provide post-crack flexural strength to enable the replacement and/or supplementation of existing concrete reinforcement products.

MasterFiber 343 can be used in slabs-on-ground and precast concrete products.
Typical applications of MasterFiber 343 include, but are not limited to, the following:
Industrial and warehouse slabs-on-ground
Residential and commercial slabs-on-ground
Concrete pavements and footpaths
Architectural precast panels
What Are the Benefits of MasterFiber 343?
Improves concrete green strength
Reduces plastic shrinkage and settlement cracking
Enhances ductility, durability, and post-crack flexural strength
Decreases construction time and overall labour and material costs
Provides effective crack control