| 摘要 |
<p>A process for manufacturing sheets for building purposes is shown, which sheets consist of a matrix of hydraulic cement or lime, fly-ash and dry product from desulphurization of flue-gas, which matrix, after mixing with water, is formed into sheets, that are compressed before setting and precuring, and the characteristic of the method, according to the invention is, that the matrix also contains 2-25 %, preferably 5-25 %, and in particular 10-20 % fibre-formed material, plus that the precured sheets go through a final curing by autoclaving. The matrix is composed so that the molar ratio between equivalent CaO and SiO2 has a value betweeen 0.5 and 1.1, preferably between 0.8 and 0.9, and the autoclaving is carried out at temperatures between 120-210 DEG C, preferably within the interval 160-210 DEG C.</p> |
