Multilayered plastic mast

摘要

For a tubular plastic mast having a conical mast body, a multilayered wall structure is selected, in the case of which an outer, thin carrying layer (1) consisting of fibre-reinforced plastic is stiffened by an inner supporting layer (2) which is made up of lightweight, high-strength fillers (2') and an expansible plastic as binder (2''). The fillers (2') consist of mineral lightweight aggregates, and a foamed reaction resin is provided as binder (2''). The invention further relates to a process for producing the mast by the centrifugal casting process. <IMAGE>