The choice of composite geo-membrane norms and lower cushion?ply flatness, material allowable tensile stresses, material elastic modulus, the largest head within paving range and largest particle of covering layer. it's thickness design should consider hydraulic?pressure strength reqiurements, and the exposing, embeding, climate, service life and other application conditions, design thickness and actual thickness should be confirmed according to the issued relative standard.
warp-wise tearing?strength, warp-wise elongation?at?break, puncturing strength, broadwise breaking strength, film material thickness, CBR bursting?strength, unit area quality inspection, permeability?coefficient, broadwise tearing?strength, broadwise elongation?at?break, warp-wise breaking strength.
Service life and other applications and its thickness design should consider the strength of hydraulic?pressure, maximum head within paving range and the largest head of covering layer.
