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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

dry bound macadam

Language : PIARC Road Dictionary / English
Theme : Roads Materials Mixed Materials
Definition : Dry crushed rock or crushed slag layer prepared by laying the larger sizes of aggregates (50-5 mm) first and then vibrating into the layer the finer aggregates (less than 5 mm).

Streumakadam

Language : PIARC Road Dictionary / German
Theme : Straßen Baustoffe Gemischtes Material
Definition : Schicht aus gebrochenen, trockenen Gesteinskörnungen (50 bis 5 mm) in die anschliessend gebrochene, feine Gesteinskörnungen (kleiner als 5 mm) durch Vibration eingerüttelt werden.