| 摘要 |
<p>BUILDING SHEETS OF CEMENT MATERIAL REINFORCED WITH PLASTICS MESH AND GLASS FIBRES ABSTACT OF THE DISCLOSURE Building sheets consisting of cement, inert materials and additives, and reinforced with plastics mesh and alkaliresistant glass fibres of short and/or continuous type, comprising a number of superposed elementary layers consisting of a mixture of cement, inert materials and additives and each comprising as reinforcement material a plastics mesh or glass fibres. The apparatus for preparing said building sheets comprises a frame, a conveyor belt, support rollers and a slide surface for said conveyor belt, an inversion roller and a drive roller, a possible feeder for a continuous support web, a series of plastics mesh feeders, a series of feeders for glass fibre originating from bobbins, a series of cement mix metering pumps, a series of cement mix distributors and a series of smoothing devices.</p> |
