| 摘要 |
<p>A process is provided for the production particularly of heat insulating building elements, in which a mixture containing fibrous vegetable matter, mainly rice-shell, binding material, e.g. cement or plaster, and water is prepared, then moulded. In the first step the vegetable matter is mixed with liquid (prewetting), which contains part of the mixing water and dissolved bond-improving agent. Dry binding material (cement or plaster), and the remaining part of the water are mixed to the prewetted material. Finally the mixture is moulded and left to solidify.</p> |
