3.995in (101.5mm) Porous Stone, 0.5in (12.7mm) Thick, allows the free flow of fluids through soil specimens and is used with the Expansion Index Consolidometer. It is made of aluminum oxide and provides rigid support for the soil specimen. One stone on the top and bottom of the soil specimen is required to provide support during testing.
- Constructed of quality aluminum oxide
- Allows free flow of water and permeants during testing
- Meets ASTM D4829 porous disk requirements
- 3.995in (101.5mm) Porous Stone, 0.5in (12.7mm) Thick