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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

porous concrete

  • Language : PIARC Road Dictionary / English
  • Theme : Roads Materials Mixed Materials
  • Definition : Cement concrete characterized by a very high content (between 15 and 30 %) of voids, which is achieved by a gap grading and/or by reducing the amount of sand.

offenporiger Beton

  • Language : PIARC Road Dictionary / German
  • Theme : Straßen Baustoffe Gemischtes Material
  • Definition : Durch einen sehr hohen Hohlraumanteil (zwischen 15 und 30 %) gekennzeichneter Zementbeton. Dieser Hohlraumgehalt wird durch eine Ausfallkörnung und/oder durch Verminderung der Sandmenge erreicht.
  • Synonyms : Drainbeton (AT)