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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

flocculation

  • Language : PIARC Road Dictionary / English
  • Theme : Roads Materials Binders
  • Definition : Formation of a discrete gel (under the action of a ''flocculant'') in a colloidal suspension, which encapsulates the colloid in the form of ''flakes'' Note: this is a reversible form of breaking, contrary to what takes place during coalescence.

Ausflockung

  • Language : PIARC Road Dictionary / German
  • Theme : Straßen Baustoffe Bindemittel
  • Definition : Die Bildung eines dispersen Gels (unter der Wirkung einer “Ausflockung”) in einer kolloidalen Suspension, die das Kolloid in Form von „Flocken“ einkapselt. Dies ist eine umkehrbare Form des Brechens, im Gegensatz zu dem, was im Rahmen der Koaleszenz geschieht.

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