ABC Evening News for Tuesday, Feb 11, 1997
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(Studio: Peter Jennings) The problem of the cost of highway construction introduced.
(Albany, New York: Jack Smith) A solution to the nation's crumbling concrete infrastructure by using high performance concrete featured; details given of how industrial waste (flyash and micro silica) is used to strengthen concrete. [Engineer Don STREETER - talks about the test results for the concrete formula.] [Cornell professor Ken HOBER - shows how the concrete is "densified."] The ancient Romans use of high performance concrete that included volcanic ash noted. [Engineer Paul ST. JOHN - comments on this reinvention.]
(Studio: Peter Jennings) Tomorrow's segment on cellular phones previewed.
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