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PIARC (World Road Association), founded in 1909 and comprising 125 member governments from all over the world, is the global forum for exchange of knowledge and experience on roads, road transport policies and practices. With consultative status to the Economic and Social Council of the United Nations, the Association is contributing to a stable and sustainable global development of the road and transport sector.

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Term of the Road Dictionary

air-entraining agent

  • Language : PIARC Road Dictionary / English
  • Theme : Roads Materials General Items
  • Definition : Admixture to a concrete mix, the purpose of which is to produce bubbles of air (''entrained air'') in the concrete to increase its resistance to frost and de-icing salts.

Luftporenbildner

  • Language : PIARC Road Dictionary / German
  • Theme : Straßen Baustoffe Allgemeines
  • Definition : Zusatzmittel für ein Betongemisch mit dem Ziel, Luftblasen ("eingebrachte Luft''”) im Beton zu erzeugen, um seinen Widerstand gegen Frost und Auftausalz zu erhöhen.