- October 19, 2021
- Posted by: admin
- Category: News
Polypropylene fiber has the characteristics of small diameter, large specific surface area, good dispersion in cement-based materials, acid, alkali, salt and other chemical corrosion, high melting point, non-toxic and so on. It can be widely used to improve the impermeability and crack resistance of mortar, ordinary concrete and high performance concrete, and also significantly improve the freezing resistance, fire resistance, impact resistance, wear resistance and workability of concrete. It mainly changes the physical properties of concrete, and has good compatibility with cement, coarse and fine aggregate and other admixtures.
Polypropylene fiber can effectively improve the impact toughness of concrete, the ability to continue to absorb impact energy after initial crack, prolong the fatigue life of concrete and improve the ability to maintain the stiffness of concrete in the fatigue process. This characteristic makes polypropylene fiber concrete suitable for pavement and bridge deck engineering.
Polypropylene fiber is a dedicated to concrete/mortar of high performance fiber, concrete/mortar can effectively control plastic shrinkage, drying shrinkage, temperature change caused by factors such as micro cracks, prevent and inhibit the formation and development of the native concrete cracking, greatly improve the anti-cracking of concrete/mortar permeability resistance, resistance to salt grinding performance, increase the toughness of concrete, Thus improve the service life of concrete.