... the strength of construction Polyacrylonitrile fiber Polyacrylonitrile fiber is an advanced organic fiber aimed at the modern projects ... etc. Irrigation projects: port, port, road deck, channel, spillway, moraine dam channel, etc. Construction projects: damp proof for roof, ... etc.Applying InstructionCompounding amount: generally, 1.0kg/m3,fiber to cement mortar are enough. Particularly it depends ...