Cross Permeability Test Apparatus

Permeability of a geotextile must be substantially greater than that of the protected soil, so that water can pass freely from the soil through the fabric without build up of hydro static pressure. A high value of the permeability of the geotextile also infers that partial clogging will not reduce the permeability. The constant head test is carried out using a head of 50 mm of water. Essential Accessories Overhead Tank Loading unit, 300-kPa capacity Cross Permeability Apparatus