Synthetic (polypropylene and cellulose) fibers for concrete reinforcement

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The synthetic fibers are just one component in preparation of concrete along with water, sand, gravel, cement and additives.

They are not substitute for the traditional reinforcement or for the steel fibers.

 

Their function is used in the following two cases:

Relief of pressure created in the pores of the concrete comes through these niches, thus preventing destruction and explosion of the concrete in case of fire. Synthetic fibers are particularly suitable for the final lining of tunnels due to their capacity to increase the fire resistance