| 摘要 |
In the production of a floor topping by the flow method, comprising providing a water-absorbing layer on a floor to be topped, pouring a free-flowing mass comprising an inorganic binder and water onto said water-absorbing layer whereby said mass forms a level floor topping, and allowing said mass to harden, the improvement which comprises employing as said water-absorbing layer a strong porous open-cell material. The open-cell material which serves as a water absorptive underlay preferably comprises at least one of anhydrite, gypsum, cement and lime. Preferably it is formed in place by casting a foamed mass comprising an aqueous suspension of gypsum, an aluminum salt, hydrogen peroxide and a manganese compound.
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