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modified Proctor

In French: Proctor modifié

Definition

A laboratory test that finds the maximum dry density of a soil or aggregate and the moisture content that achieves it, using a high compaction energy. Specifications state the required compaction as a percentage of that maximum, checked on site with a test device.

Also called

  • modified Proctor test
  • maximum dry density test

Other names in French

  • essai Proctor modifié
  • Proctor

Sources

  1. Montreal's specification requires 95% of the modified Proctor maximum dry density (CAN/BNQ 2501-255) for paver base layers, at a moisture content close to optimum. (s. 7.4.3 et 8.2)

    DTNI-3C, Mise en oeuvre des pavés et des dalles en béton ou en pierre naturelle sur lit de pose granulaire · Ville de Montréal