DW1330W Wet Sieve Test Apparatus is used to determine the characteristic opening size of a single layer of a geotextile or geotextile-related product, using the wet-sieving principle. A quantity of graded granular material is spread on the surface of the geotextile and washed through with water. The geotextile acts as a sieve and the graded granular material, which act as soil and pass the geotextile, is analyzed. The characteristic opening size (O90) of the geotextile corresponds to a specified size of the graded granular material passed (d90).
DW1330W Wet Sieve Test Apparatus is used to determine the characteristic opening size of a single layer of a geotextile or geotextile-related product, using the wet-sieving principle. A quantity of graded granular material is spread on the surface of the geotextile and washed through with water. The geotextile acts as a sieve and the graded granular material, which act as soil and pass the geotextile, is analyzed. The characteristic opening size (O90) of the geotextile corresponds to a specified size of the graded granular material passed (d90).