| 摘要 |
The invention relates to a method for producing plasterboards having a core density below 0.77, comprising the following steps: - forming a foam from water and a surface active agent consisting of at least one alkylsulfate having formula H(CH2)nOSO3 <->M<+>, wherein n is a number between 6 and 16, M is a monovalent cation and the average number of carbon atoms nm is between 9 and 10; and - introducing the foam obtained into a plasterboard. The inventive method is characterised in that the quantity of surface active agent introduced does not exceed 0.32g/l of plasterboard. The invention is suitable for producing reduced-weight plasterboards.
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