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British Dictionary definitions for air-entrained concrete

air-entrained concrete

noun
  1. a low-density type of concrete throughout which small air bubbles are dispersed in order to increase its frost resistance: used for making roads. With 1 per cent of air, the loss of strength is approximately 5 per cent
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012