Welcome on piarc.org!

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.

This site uses cookies to optimize its operation. They allow you to securely access your personal space and download our publications. You accept their use by clicking on the "Accept" button.

Term of the Road Dictionary

gyratory shear compactor

  • Language : PIARC Road Dictionary / English
  • Theme : Roads Materials Material Testing
  • Definition : Test device used to measure the change in voids content of a material as a function of the number of rotations during isothermal compaction. Note: compaction is obtained by the combination of shear pressure and an axial force applied with a mechanical head.

Gyrator

  • Language : PIARC Road Dictionary / German
  • Theme : Straßen Baustoffe Materialprüfung
  • Definition : Ein Versuchgerät, das zur Messung der Veränderung des Hohlraumgehalts eines Materials in Abhängigkeit von der Zahl der Umdrehungen während isothermaler Verdichtung dient. Die Verdichtung wird durch eine Kombination von Schubbelastung und einer axialen Kraft erreicht, die mit einem mechanischen Kopf aufgebracht wird.

Back to theme