In May 2012, the FORTA-FERRO® macro synthetic fiber was used in a very large slab on metal deck project that provided a working surface for the 2nd-level order fulfillment operations for a large online retail store. Previous mezzanine projects had resulted in an unacceptable level of cosmetic cracking, and a high volume dosage of macro synthetic fiber was selected as a cost-effective potential corrective measure. The fiber was 2-1/4 “ long at a concentration of 0.5% by volume (7.5 Ibs. / cu. yd.), and used in over 237,000 square feet of 3-1/2” composite metal deck. The fiber-reinforced concrete was pumped over 300 feet in some areas in a 4 in. line, and pumped easily after minor pump-grate corrections were performed. To-date, only very few short, tight cracks have been reported from re-entrant corner stairwell openings, and cracking on the open deck has essentially been eliminated.
Only very few short and tight cracks have been reported since the initial construction from re-entrant corner stairwell openings, and cracking on the open deck has essentially been eliminated.
- Superior Finish
- Extreme Durability
- Reduced Cracking