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Shrunk Polytek 74-20 molds

Started this discussion. Last reply by Tom Fischer- Fishstone,CCS Oct 31, 2016. 3 Replies

I have some 24x24" forms made out of Polytek 74-20 polyurethane rubber and i noticed that after 4 years of about 70 castings they have shrunk down in size about 1-2%.Polytek initially said that i do…Continue

Tags: molds, shrunk, polyurethane, 74-20, polytek

Is artificial carbonation of GFRC possible?

Started May 29, 2015 0 Replies

Most of you probably know that carbonation is the result of the dissolution of CO2 in the concrete pore fluid and this reacts with calcium from calcium hydroxide and calcium silicate hydrate to form…Continue

Tags: carbonation

SCC GFRC mixers options

Started this discussion. Last reply by Versus May 6, 2015. 5 Replies

Currently mixing with Eibenstock EHR 23 mixer but would like to switch to non hand-held mixer.Which model suitable for SCC GFRC would you guys recommend among the two listed below?Portamix Mega Hippo…Continue

Tags: tms2000, collomatic, collomix, hippo

Want to buy: Imer Mortarman 120 PLUS or Collomix Collomatic TMS 2000

Started this discussion. Last reply by Tom Fischer- Fishstone,CCS Nov 25, 2014. 3 Replies

If anyone's selling, i'm buying. :)Continue


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Fishstone's Super-SIX-Admix™ is a proprietary blend of SIX different admixtures designed to achieve pinhole free, dense and strong concrete that will free flow in precast molds.  Super SIX makes it easy to produce Ultra high performance concrete (UHPC), also known as Engineered Concrete Composition (ECC) and Reactive Powder Concrete (RPC).  Super-SIX™  is a non-hazardous material utilizing the newest and most advanced technologies.

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