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  • A world in itself

    From a height of some 50 metres, you have the entire ITER worksite at your feet. The long rectangle of the Diagnostics Building stands out in the centre, with [...]

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  • US completes toroidal field deliveries for ITER

    The US Domestic Agency achieved a major milestone in February by completing the delivery of all US-supplied toroidal field conductor to the European toroidal fi [...]

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  • Thin diagnostic coils to be fitted into giant magnets

    Last week was marked by the first delivery of diagnostic components—Continuous External Rogowski (CER) coils—from the European Domestic Agency to the ITER Organ [...]

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  • Addressing the challenge of plasma disruptions

    Plasma disruptions are fast events in tokamak plasmas that lead to the complete loss of the thermal and magnetic energy stored in the plasma. The plasma control [...]

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  • Blending (almost) seamlessly into the landscape

    Located in the foothills of the French Pre-Alps, the ITER installation blends almost seamlessly into the landscape. The architects' choice ofmirror-like steel c [...]

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Of Interest

See archived articles

New use for old tires

-Robert Arnoux

10-25 millimetres thick and the size of a 2€ coin, the tire pellets are used as filler material for underground storm basins. (Click to view larger version...)
10-25 millimetres thick and the size of a 2€ coin, the tire pellets are used as filler material for underground storm basins.
Every year, several hundred thousand tons of used tires are discarded. Most  end up in landfills - only a fraction is granted a second life as re-treads, filler-material, "crumb rubber" for asphalt, fuel, artificial reefs or... flower pots.

Hilios, a small family business in Beaucaire, a village north of Arles, has devised and patented a process that transforms used tires into pellets. 10-25 millimetres thick and the size of a 2€ coin, the tire pellets are used as filler material for underground storm basins.

This brand new technique was recently adopted for the creation of two large storm basins at the International School in Manosque. "A volume filled with tire pellets," explains Dimitri Papacristou, the inventor of the process, "has a much higher retention capacity than one that is filled with stone pebbles, as storms basins habitually are."

Some 550 cubic metres of tire pellets and also tire flanks ''slices'' were arranged in layers and covered with dirt to create the International School's storm basins. © Jean-Pierre TISSIER - La Provence (Click to view larger version...)
Some 550 cubic metres of tire pellets and also tire flanks ''slices'' were arranged in layers and covered with dirt to create the International School's storm basins. © Jean-Pierre TISSIER - La Provence
The 550 cubic metres of tire pellets that went into the International School's storm basins will retain some 380 cubic metres of water — ...enough to safely weather the exceptional storm that happens theoretically once every one hundred years.

Tire pellets are also four times lighter than pebbles, thus requiring considerably fewer truck rotations to fill the basins. The advantages of the technique developed by Mr. Papacristou do not stop there. "Compared to pebbles," he explains, "tire pellets offer better resistance to rolling — you could build a highway above these storm basins!"

Fortunately, no highway will be built over the International School storm basins. The area over one will be developed as a sports field, and over the other as a "green area".



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