| 摘要 |
<p>An improvement in the mouldability of wet sheets formed from asbestos-free fibre reinforced cement compositions is obtained when compositions comprising hydraulic cement, alkali-resistant synthetic fibre, plasticiser, optionally a finely divided inert and particulate filler, and preferably a flocculant for the particulate components of the composition are employed. A particularly suitable composition is obtained when fibrous cellulosic material is employed in combination with inorganic synthetic fibre and organic synthetic fibre. In an example flat sheets are formed from a slurry and patterns cut from the sheets and moulded to form flue pipes, flue fittings and flue terminals.</p> |
