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Nycon Develops PVA TUFF-SLAB(TM)
12 January 2012
NYCON DEVELOPS TUFF-SLAB(TM) WITH PVA FIBERS.
600,000 LB 4-Point Load
A scrap recycling plant asked Nycon to design a concrete slab and mix design that would improve their life-cycle cost while reducing the frequency of replacing their heavy work area concrete. The plant needed a heavy-duty slab capable of enduring tremendous abuse, as well as occasional 200,000 pound wheel loads. The facility operates 24/7 so any new slab needed to be ready for traffic in less than one week. Other design goals were to improve abrasion resistance and to provide improved life expectancy to avoid disruption to the plant operations. The new TUFF-SLAB design incorporates steel rebar reinforcement, a blend of Nycon-PVA and measures up to 18″ thick.
- 800,000 LB Total Wheel Load
The Nycon plan included a test slab which was mixed, poured and opened to heavy test traffic two days after placement of the special Nycon-PVA fiber concrete mix. The test slab was poured only three inches (3″) thick without any wire mesh or rebar. The mix was designed to attain 5,000 psi in 7-days and greater than 7,000 psi in 28-days, while including the blend of 6 lb/CY (3.5 kg/m3) Nycon-PVA RF4000 and 3 lb/CY (1.75 kg/m3) Nycon-PVA RSC15 fibers.
Nycon-PVA fibers are the only fiber that develops a molecular bond to concrete, which is activated when the PVA comes into contact with the mix alkalinity. The Nycon-PVA fiber unique molecular bond to the cement paste provides improvement to the abrasion resistance and impact resistance of concrete – without any loss of compressive strength.
Nov
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