| 摘要 |
A refractory insulating composition is described which is characterised by at least 20 to 50 % by mass of aluminium silicate powder, 3 to 5 % by mass of sodium fluorosilicate, 20 to 30 % by mass of waterglass and 30 to 60 % by mass of tertiary clay pellets, at least 70 % by mass of the loose components being formed by grains of a size up to 0.6 mm. Owing to its improved physical properties, the insulating composition according to the invention is particularly suitable for brick-lining of thermal engineering structures and in fire protection. |
