| 摘要 |
A footstep noise deadening and heat-insulating material composition (A), comprising closed-cell polymeric foam granules and a cement-type binder, includes at least one water-retaining agent (I), the total amount of (I) being 0.1-25 wt. % and the amount of foam granules being 20-120 wt. % (both based on the cement). - Independent claims are included for: - (1) a method for hardening (A), by intimately mixing the binder, foam granules and optionally other components with addition of water then applying and hardening the mixture, where the binder is firstly mixed intimately with (I) and optionally other components, then mixed with part of the foam granules in presence of water and finally mixed with the remainder of the foam granules in at least one stage; - (2) an insulating material comprising (A) and water, in an amount corresponding to a water to cement ratio of 0.7-3 (preferably 0.7-0.25, especially 1.1-2.5); and - (3) another method for hardening (A), involving a stage of mixing (A) with water. |
