Frequently Asked Questions About Helix

What properties of concrete does Helix improve?
Helix increases bending strength and raises the Modulus of Rupture (first crack strength). It also improves ductility and adds considerable resistance to cracking.

Will Helix increase the compressive strength?
No. Helix is specifically designed not to affect the compressive strength of concrete.

How much Helix should I use?
Just as increasing from #3 bar to #5 bar adds strength, so does adding more Helix. We calculate the amount of Helix exactly like you would calculate the amount of rebar. For baseline dosages, please refer to the Helix Dosage vs. Rebar & Mesh table or send us a Dosage Request Form.

How do I add Helix to concrete?
Just add Helix as the last ingredient to the mix and it will distribute itself within 5 minutes or less. Helix was specifically designed to mix easily into all types of concrete.

Will Helix work with all concrete mixes?
Yes, pretty much any mix will benefit from Helix. With very high dosages (>50 lbs/yd) some mix adjustments might be helpful.

Won't Helix stick up through the surface?
No. Helix has been used in hospitals, grocery stores, airport terminals and plenty of other places where people walk in bare feet. Helix is also used in roads.

Will Helix rust?
Helix is electrogalvanized with zinc to prevent rust.

Are you telling me that Helix can replace rebar as primary reinforcement?
Absolutely! Helix was designed to strengthen concrete for earthquake and blast resistance.

But I have codes which I have to meet?
Helix is covered under the standard codes used worldwide and has already been used in virtually every application for concrete. The Helix Data Sheet has a list of many of the applicable codes, but feel free to contact us if you have a specific question.

I'm just hearing about Helix for the first time, is Helix new?
Helix was invented in 1997 and has been subjected to over 10,000 tests in the laboratory and in the field. It has been used in virtually every application which uses concrete. It is now sold in 27 countries (and counting).

I'm using plastic fibers; can Helix replace these?
If you are using these for plastic shrinkage protection (cracks that can form in the first 24 hours of curing caused by the wrong wind, moisture and temperature conditions), keep using them. But if you think they are doing anything else, call us and we'll show you how using Helix will be better and cheaper.