| 摘要 |
<p>A method for the manufacture of insulating, porous shaped articles wherein porous filling bodies are provided with an outer coating of a tacky substance, subsequently made tack-free by the addition of a powdery substance, whereupon the discrete particles thus obtained are mixed with a hardening binder, whereafter the mass is transferred into a mould or formwork. Optionally a foaming agent and waterglass may be added. The powdery substance is suitably cement. The foaming agent is preferably a protein-concentrate.</p> |
