Process for molding a solid, single-piece and open body with air-curable fluid materials, body thus obtained and plant for producing such bodies

摘要

The process comprises the following steps: using a mold (1) with a molding surface; placing the mold (1) on a rigid base (6); projecting to the mold a first air-curable fluid material in order to form a first homogeneous and impervious layer (2), which defines a main surface of the solid body; projecting to the first layer (2) a second air-curable fluid material which comprises a fiber armature, while forming a second layer (3); curing the curable materials; and separation of the solid body from the mold (1). The process provides for the fabrication of a solid, single-piece and open body which comprises said first layer (2), second layer (3) and third layer (4), the latter covering a metal structure (5) of reinforcement. The plant comprises: a portal (19) which can be moved above an area (21) where the molds are laid; an omnidirectional projection nozzle (18), which can be displaced over the portal; a pulse pump 16 for projecting the mortar and which is communicated with the nozzle (18) and with an agitator (14) intended to receive the starting materials.