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      Concrete pours into Michigan physics site

      Construction on Michigan State University's physics research facility is moving forward with the addition of about 140 truckloads of concrete.

      The Lansing State Journal reports (http://on.lsj.com/1mCmPBN ) about 1,400 cubic yards of concrete will be poured Wednesday for part of a tunnel in what will be the school's Facility for Rare Isotope Beams. The tunnel will hold the facility's superconducting linear accelerator. The machine will produce beams of subatomic particles traveling at half the speed of light.

      A project director says the tunnel floor will require four more concrete pours.

      The $730 million research facility known as FRIB (EF'-rib) is expected to open sometime between 2020 and 2022. Michigan State won a national competition to host the project in 2008.