I'm sure it would be too expensive to lace an entire airport with the stuff and NO it won't cut down on deicing--that isn't for the runways it's for the planes.

One could sell a lot of this concrete in Ohio, among other places.

Larry, the article never said it was for "deicing", it said it was for keeping it ice free...
To author, don't you think people would like to know how much more expensive it is than regular concrete? It obviously could be used for places other than airports. Saying how much it costs to power up for 7 hours is only a third of the information you should have supplied. How much more than regular concrete is the more obvious question that needs answering before anyone can have more than a passing interest, especially since there have been YouTube videos of heated concrete for years. Not carbon fiber obviously but assuredly less expensive. It would have also been nice if you could have asked how much airports could save by not using all of the equipment you mentioned.

@dburdsal, actually the article does say it would cut down on the need for de-icing chemicals.

Can this be used for radiant heat in a house?

A major airport runway is a high value application. It is usually 16 in. of reinforced concrete. The carbon reinforcement could probably be justified. Might be good in bridges for the same reason.

Rather than using expensive electricity to heat the concrete (19 cents per square meter is a huge amount when you consider just how much there is to heat), why not use geothermal heat (ground source) and embed piping in the concrete? That way you aren't paying for the heat, only the electricity needed to pump the heat from down below.
Even so, would be a hugely expensive undertaking. But consider the costs of closing down a major airport such as London's Heathrow versus the cost of installation.

Very expensive to operate... Why not install radiant heating tubes in the concrete and build vast storage and heat transfer modules under ground, and under the frost line, where the temperature remains constant year round.... Pumps would be required to circulate the anti-freeze/water solution, which would be cheaper than the system in discussion.

We had a group at the University of Alaska develop something like this using a carbon fiber tape to heat asphalt or concrete several years ago. I believe they ended up starting a company.

There is already a technology to keep runways ice free. It's called Solar Roadways.