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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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  4. Term of the Dictionary | flakiness coefficient

Term of the Road Dictionary

flakiness coefficient

  • Language : PIARC Road Dictionary / English
  • Theme : Roads Materials Soils and Aggregates
  • Definition : Total mass of particles passing the grid sieves with parallel slots of width D/2 specified for the respective size fractions d/D in a coarse aggregate, expressed as a percentage of the total mass of the particles of that aggregate.
  • Synonyms : flakiness index

Plattigkeitskoeffizient

  • Language : PIARC Road Dictionary / German
  • Theme : Straßen Baustoffe Erdreich und Gesteinskörnung
  • Definition : Die Gesamtmenge der Körner, die durch ein Gittersieb mit parallelen Öffnungen der Weite D/2 fällt, womit die jeweilige Kornfraktion d/D einer groben Gesteinskörnung bestimmt wird, ausgedrückt als Prozentsatz der Gesamtmenge der Körner dieser Gesteinskörnung.