| 摘要 |
1. A high density material possessing mechanical characteristics allowing it to be machined, this material having a stratified structure based on cement reinforced by networks of glass filaments, characterized in that it comprises, throughout the whole thickness of the material, alternating thin layers (1) of aluminous cement and blankets (2) of open mesh glass thread fabric made of threads of chipped silicone filaments (or chipped textured yarn) - known per se - which threads weigh between 34 tex and 600 tex, have a mesh number par square centimetre of between 1 and 22 and extend in one piece over the whole corresponding dimension of the material. |
