Mesh Draindown Basket, 1/4in

Mesh Draindown Basket, 1/4in

The Mesh Draindown Basket is an essential tool for performing the draindown test on uncompacted bituminous mixes. This test measures the amount of asphalt binder that separates from a sample when held at the elevated temperatures typically encountered during production, transport, and placement. It is especially useful for evaluating stone matrix asphalt (SMA) or open-graded porous asphalt mixtures, where binder drainage can be a significant concern.

How It Works

During the test, a sample is placed in the Draindown Basket, which is then set in a forced-air oven on a pre-weighed paper plate for one hour. The amount of draindown is determined by measuring the portion of binder that separates from the sample and is deposited onto the plate outside the basket. Paper plates are not included and should be obtained locally.

Key Features

• Constructed from high-quality ASTM E 11 stainless steel mesh for durability and accuracy
• 1/4in (6.3mm) mesh size to capture the appropriate aggregate while allowing binder to drain
• Dimensions: 4.25 x 5.5in (108 x 140mm), Diameter x Height
• Features a 1in (25mm) bottom skirt to help contain the sample
• Equipped with a convenient bail-type handle for easy placement and removal from the oven

Meets the Following Test Methods:

• AASHTO T305
• ASTM D 6390