| 摘要 |
Insoluble silicate foams which exhibit good permanence and weather resistance for use in structural applications may be produced by foaming a dry reaction mixture of hydrated silicate and complexing agent which has been prepared by mixing particulate alkali metal or alkaline earth metal silicate and the complexing agent and treating tat mixture with saturated steam at the hydration temperature of the silicate, thereby achieving uniform distribution and penetration of the reactants. |
