| 摘要 |
<p>A composition for producing a product comprises an alkaline silicate, a metal hydroxide, an impermeabilising agent; a method for producing a product (10) comprises: preparing a fluid composition by mixing together an alkaline silicate, a metal hydroxide and an impermeabilising agent; pouring said composition (C) into mould means (5); heat-treating said composition (C) so as to produce a plurality of small cavities in said composition (C); a method for producing a finely subdivided insulating material comprises : preparing a fluid composition (C) by mixing together an alkaline silicate, a metal hydroxide and an impermeabilising agent; heat-treating said composition (C) so as to produce a plurality of small cavities in said composition (C); finely subdividing said composition (C); an apparatus for producing a product (10) comprises mould means (5) arranged for receiving a fluid' composition (C) and heating means (9) arranged for heat-treating said composition (C) inside said mould means (5), said mould means (5) being defined by a conveying means (5).</p> |
