Precursors for the preparation of porous mineral lightweight materials, process for preparing porous mineral lightweight materials and their use

Precursors for the preparation of porous mineral lightweight materials containing at least one kind of cement, at least one surfactant, at least one type of synthetic, natural and modified natural polysaccharides and Water hardness> 3.2 mmol / l (° fH) A process for preparing precursors in which at least at least one kind of cement, at least one surfactant, at least one type of synthetic, natural and modified natural polysaccharides and Water hardness s mixed> 3.2 mmol / l (° FH) in a mixing unit with each other, such that and / or form in the resulting mixture of air bubbles having a diameter of 1 nm to 10 mm, and A process for preparing porous mineral lightweight materials, in which pouring the precursors in a shape and / or applying to a surface and allowed to dry in air for 3 to 48 hours at 10 ° C to 130 ° C, and to the use of the porous mineral lightweight materials, in particular of the cellular concrete.