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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

fines activity

  • Language : PIARC Road Dictionary / English
  • Theme : Roads Materials Soils and Aggregates
  • Definition : Characteristic of fines (or filler) with a high specific surface area and swelling in water. Note: activity is determined by the activity coefficient as in the methylene blue test.

Fülleraktivität

  • Language : PIARC Road Dictionary / German
  • Theme : Straßen Baustoffe Erdreich und Gesteinskörnung
  • Definition : Eine Eigenschaft von Feinkorn (oder Füller) mit einer hochspezifischen Oberfläche und Quellvermögen bei Anwesenheit von Wasser. Die Aktivität wird durch den Aktivitätskoeffizienten bestimmt wie beim Methylenblau-Versuch.

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