Abstract: The present invention discloses a reinforcement product for use in cement boards and a method of manufacturing said product and of manufacturing cement boards using this product.The reinforcement product of the present invention comprises cross-layered webs of plastic fibres with a preponderance of fibres laid in the trans-axial direction, and continuous filaments or fibrillated tapes located between the layers to impart a high degree of strength in the axial direction. The cross-layered web and the filaments or tapes are compacted to form a reinforcement product which can be rolled up and handled for further processing on cement board forming machines. The webs of plastic fibre are formed by monoaxially orientating on extruded sheet of plastics material in axial direction, then fibrillating the sheet to form a cohesive fibre mass which is cut into lengths and carded to break up the film into a coarse fibrous mass which when stripped from the carding machine forms said plastic fibre web.

Abstract: A method of piling plastics or rubber mixture ribbons on a support (1) for transport and storage wherein the ribbon (2) is folded in superimposed layers (3,4). The ribbon is folded in each layer partly to overlap not more than 2/3 of the width of the ribbon in each fold. The folding direction (B) is in at least some of the layers (4) changed preferably 90.degree. with respect to the folding direction (A) of the other layers. In this way the ribbon can be folded in layers crosswise and the pile formed will be firmly bound so that the pile remains intact without any supporting borders.The transport and storage pile comprises a pallet on which are folded superimposed ribbon layers in crosswise layers. In each layer the ribbon is folded overlapping so as to bind the pile into a firm and durable unit (FIG. 1).