Concrete ideas

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      <subfield code="a">Passive fire protection in tunnels has become an important issue since tunnels fires have shown that intense heat can lead to explosive spalling in which the structural integrity of the concrete lining is impaired, exposing reinforcing steel to above-critical temperatures</subfield>
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      <subfield code="g">nº 385, October 2004 ; p. 40-41</subfield>
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