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The draindown test for uncompacted bituminous mixes measures the amount of asphalt binder that separates from a sample held at the elevated temperatures encountered in production, transport and placement. The test is particularly applicable to stone matrix asphalt (SMA) or open-graded porous asphalt mixtures. The sample is placed in the special Draindown Basket in a forced-air oven on a pre-weighed paper plate for one hour. The amount of draindown is measured as that portion that separates itself from the sample and is deposited onto the plate outside the basket. Paper plates should be obtained locally.
ASTM E 11 quality stainless steel mesh is used for this No. 8 basket. Measures 4.25x5.5in (108x140mm), Dia.xH and has a 1in (25mm) bottom skirt. A convenient bail-type handle is provided.
Product Dimensions 4.25 x 5.5in (108 x 140mm), Dia x H
Meets Test Methods:
AASHTO T305
ASTM D 6390