The invention relates to a composition comprising at least one binder based on calcium sulfate and at least one polymer obtainable by polymerization of monomers based on alkoxylates of S-vinylthioalkanols. Furthermore a molding, in particular a gypsum plasterboard, a gypsum wallboard, a screed or a knifing filler, obtained by setting of the composition of the invention is disclosed.

The invention relates to a composition comprising at least one binder based on calcium sulfate and at least one polymer obtainable by polymerization of monomers based on alkoxylates of S-vinylthioalkanols. Furthermore a molding, in particular a gypsum plasterboard, a gypsum wallboard, a screed or a knifing filler, obtained by setting of the composition of the invention is disclosed.

The present invention relates to a quick and low-stress setting chemical formulation for construction, containing at least one binding agent on the basis of calcium sulfate, at least an ettringite-forming agent, at least one activator, at least one filler, at least one redispersable dispersion powder and optionally additives and to the use of the chemical formulation for construction for producing thin-layered balancing masses, self running and solid fillers, screed binding agents or screed mortars, tile adhesive mortars, jointing mortars and sealing sludges.

Gypsum composites containing cementitious materials and methods of making the same are provided. Gypsum composites include gypsum and a cementitious material. Methods of making gypsum composites include combining gypsum stucco, water, and a cementitious material to form a slurry, and setting and drying the slurry to form a gypsum composite.

Gypsum composites containing cementitious materials and methods of making the same are provided. Gypsum composites include gypsum and a cementitious material. Methods of making gypsum composites include combining gypsum stucco, water, and a cementitious material to form a slurry, and setting and drying the slurry to form a gypsum composite.

The invention relates to dispersants for inorganic particles, preferably for hydraulic binders, which comprises the following structural units: i) at least one triazine structural unit, ii) at least one polyalkylene glycol structural unit, and iii) at least two phosphoric ester structural units on at least one carbon atom of one or more aromatic triazine rings of the formulae (IIa) and/or (IIb):
N(CH.sub.2CH.sub.2OPO.sub.3H.sub.2).sub.2,(IIa)
and
NHCH.sub.2CH.sub.2OPO.sub.3H.sub.2.(IIb) The invention also relates to a process for preparing the dispersants, to building material mixtures comprising one or more dispersants and one or more inorganic binders. The invention relates to the use of the dispersants as a water reducing agent, as a means for reducing the viscosity and for enhancing the early strengths of aqueous inorganic binders, and also to the use as a grinding aid in the production of cement.

A gypsum hardened body including a gypsum slurry that has been hardened is provided. The gypsum slurry is obtained by mixing calcined gypsum, calcium hydrogen phosphate dihydrate, water, and foam. The specific gravity of the gypsum hardened body is greater than or equal to 0.3 and less than or equal to 0.8.

A gypsum hardened body including a gypsum slurry that has been hardened is provided. The gypsum slurry is obtained by mixing calcined gypsum, calcium hydrogen phosphate dihydrate, water, and foam. The specific gravity of the gypsum hardened body is greater than or equal to 0.3 and less than or equal to 0.8.

The instant invention is concerned with the post-treatment of -hemihydrate plasters for the purpose of stabilization. The invention relies in the addition of a retardant to the calcined -hemihydrate. It is also the purpose of the invention to provide stabilized -hemihydrate plasters which exhibit advantageous properties.

The instant invention is concerned with the post-treatment of -hemihydrate plasters for the purpose of stabilization. The invention relies in the addition of a retardant to the calcined -hemihydrate. It is also the purpose of the invention to provide stabilized -hemihydrate plasters which exhibit advantageous properties.