What are the roles of fiber in mortar?

#1
The main roles of fiber in mortar are crack resistance, toughening, impact resistance, permeability resistance, frost resistance and fatigue resistance, etc.

① Crack Resistance: Prevent the extension of original defect cracks in the mortar matrix, effectively prevent and delay the emergence of new cracks;

② Permeability Resistance: Improve the density of mortar matrix, prevent the invasion of external moisture, and improve the water resistance and permeability resistance of mortar;

③ Durability: Improve the frost resistance and fatigue resistance of mortar matrix, and enhance durability.

④ Impact Resistance: Improve the rigidity of mortar matrix, increase toughness, reduce brittleness, improve the deformation capacity and impact resistance.
 
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