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This test is performed spreading a measured volume of fine sand (ASTM) or glass spheres (EN) into a circular patch on the road surface and filling the surface depressions to the level of the peaks.
The apparatus comprises the following parts:
|CO80B0179-||Ens. d'essais de patch de sable|
|#CO80B01791-||Salble ASTM E965 300um/150um 10kg|