Draindown Basket

Draindown Basket



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Draindown Basket

The draindown basket test effectively measures the amount of asphalt binder that separates from a sample held at elevated temperatures encountered in production, transport, and placement.  The test works with Stone Matrix Asphalt (SMA) or open-graded porous asphalt mixtures.

A sample goes into the basket and then into a forced-air oven on a pre-weighed paper plate for one hour.  The portion that separates itself from the sample and deposited onto the plate outside the basket becomes the draindown measurement.


  • Each basket measures 4.25″H x 5.5″Dia. and has a 1″ bottom skirt
  • Optimal for measuring asphalt binder that separates from un-compacted bituminous mixes
  • Ideal for SMA or open-graded porous asphalt mixtures
  • Constructed of ASTM E11 stainless steel
  • Bail-type handles for easy handling
Weight N/A
Dimensions N/A

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