A radon-free ceramic panel includes a mixture including two or more types of stone dust selected from among granite, basalt, limestone, dolomite, elvan, black stone, feldspar, and sandstone, along with waste slag and a non-phenolic adhesive. The ceramic panel is lightweight and has excellent fire resistance, heat insulation, corrosion resistance, water resistance, and ability to act as a bather to radon gas.

A radon-free ceramic panel includes a mixture including two or more types of stone dust selected from among granite, basalt, limestone, dolomite, elvan, black stone, feldspar, and sandstone, along with waste slag and a non-phenolic adhesive. The ceramic panel is lightweight and has excellent fire resistance, heat insulation, corrosion resistance, water resistance, and ability to act as a bather to radon gas.

An additive for mineral binder composition, in particular accelerators for mineral binder compositions, in particular cementitious binder compositions. The accelerator includes 35 to 99.7 w % of at least one mineral filler F with a particle size D50<5 μm, preferably <4 μm, most preferred <3.5 μm, 0.3 to 65 w % of a sodium aluminate SA, and 0 to 45 w % of at least one other inorganic compound I selected from the group consisting of calcium aluminate cements and/or sulfates of alkali or alkaline earth metals. Further, corresponding mineral binder compositions as well as uses and processes, including the acceleration of setting and curing of mineral binder compositions at low temperatures.

An additive for mineral binder composition, in particular accelerators for mineral binder compositions, in particular cementitious binder compositions. The accelerator includes 35 to 99.7 w % of at least one mineral filler F with a particle size D50<5 μm, preferably <4 μm, most preferred <3.5 μm, 0.3 to 65 w % of a sodium aluminate SA, and 0 to 45 w % of at least one other inorganic compound I selected from the group consisting of calcium aluminate cements and/or sulfates of alkali or alkaline earth metals. Further, corresponding mineral binder compositions as well as uses and processes, including the acceleration of setting and curing of mineral binder compositions at low temperatures.

A multi-component mortar system including a component A and a component B wherein, component A includes aluminous cement, at least one set inhibitor, at least one mineral filler and water, and component B includes an initiator system for the set-inhibited aluminous cement, at least one mineral filler and water. The multi-component mortar system is easy to use and suitable for repair and refurbishment and particularly for printing 3D structures.

A multi-component mortar system including a component A and a component B wherein, component A includes aluminous cement, at least one set inhibitor, at least one mineral filler and water, and component B includes an initiator system for the set-inhibited aluminous cement, at least one mineral filler and water. The multi-component mortar system is easy to use and suitable for repair and refurbishment and particularly for printing 3D structures.

A set control composition for cementitious systems comprises (a) an amine-glyoxylic acid condensate, and (b) at least one of (i) a borate source and (ii) a carbonate source. The carbonate source is selected from inorganic carbonates having an aqueous solubility of 0.1 gL.sup.−1 or more, and organic carbonates. The set control composition improves workability of cementitious systems for prolonged periods of time without compromising early compressive strength. Due to the retarding action of the set control composition, the dosage of dispersant(s) necessary to obtain a desired flowability of the cementitious system can be reduced.

A set control composition for cementitious systems comprises (a) an amine-glyoxylic acid condensate, and (b) at least one of (i) a borate source and (ii) a carbonate source. The carbonate source is selected from inorganic carbonates having an aqueous solubility of 0.1 gL.sup.−1 or more, and organic carbonates. The set control composition improves workability of cementitious systems for prolonged periods of time without compromising early compressive strength. Due to the retarding action of the set control composition, the dosage of dispersant(s) necessary to obtain a desired flowability of the cementitious system can be reduced.

A set control composition for cementitious systems comprises (a) an amine-glyoxylic acid condensate, and (b) at least one of (i) a borate source and (ii) a carbonate source. The carbonate source is selected from inorganic carbonates having an aqueous solubility of 0.1 gL.sup.−1 or more, and organic carbonates. The set control composition improves workability of cementitious systems for prolonged periods of time without compromising early compressive strength. Due to the retarding action of the set control composition, the dosage of dispersant(s) necessary to obtain a desired flowability of the cementitious system can be reduced.

The invention relates to a composition for a pasty fill and finishing material, a pasty fill and finishing material, and a method for producing a pasty fill and finishing material. The composition comprises at least one filler, at least one binding agent, and additives, wherein the at least one binding agent comprises an organic polymer and hydroxyethyl cellulose, and wherein the at least one filler is a lamellar silicate material.