Abstract: A cementitious adhesive composition, in particular a tile adhesive, especially for use in automatic tiling systems, includes 10-70 wt.-% of a hydraulic binder, in particular cement, 20-90 wt.-% of aggregates, in particular sand and/or calcium carbonate, and 0.01-5 wt.-% cellulose ether.

Abstract: An accelerator powder for cement and also rapid-setting binder compositions which contain the accelerator powder and the use in mortar or concrete. The accelerator powder includes from 10 to 99.7% by weight of a water-insoluble mineral powder P and from 0.3 to 90% by weight of at least one compound V selected from the group consisting of alkali metal halides and alkaline earth metal halides, alkali metal nitrates and alkaline earth metal nitrates, alkali metal nitrites and alkaline earth metal nitrites, alkali metal thiocyanates and alkaline earth metal thiocyanates and hydroxyalkylamines or salts thereof, and mixtures thereof.

Abstract: A ready-to-use multi-component mortar system in a mixing bag including a component A which is solid and comprises cement and/or aluminium silicate, and a component B which is an aqueous solution, emulsion or suspension, wherein the mixing bag is a flexible bag including at least two separate sealed chambers which are isolated from each other by a removable or frangible seal and the components A and B of the multi-component mortar system are separately situated in the separate sealed chambers of the mixing bag without any contact to each other.

Abstract: A system for applying a building material, including: a first component of the building material, including a first constituent and a second constituent; a second component of the building material; a first mixer for mixing the first constituent and the second constituent; a supply device for supplying the first constituent to the mixer; a movement device for modifying a site of application in a space; and a second mixer for mixing the first component and the second component.

Abstract: A system for applying a building material, including: a movement device for modifying a site of application in a space; a first component of the building material; a second component of the building material; a mixer for mixing the first component and the second component, the mixer including a drive module with a first coupling element and a mixing chamber module with a second coupling element, the drive module and the mixing chamber module being detachably embodied, and the drive module and the mixing chamber module being actively interconnected in an application state of the system by means of the coupling elements.

Abstract: A method for the application of hydrous mineral binder compositions which contain fibres. An aqueous accelerator is mixed with the aqueous binder composition in a mixer shortly before the application. The method is very robust and makes it possible to quickly produce even large moulded bodies having a uniform surface and very good strength development properties.

Abstract: In a method for the 3D-printing of hydrous mineral binder compositions, an aqueous accelerator is mixed with the binder composition in a continuous mixer. The method is very robust and makes it possible to quickly print even large moulded bodies having a uniform aesthetic surface and very good strength development properties.

Abstract: A method for producing a shaped body from a curable material, in particular from a mineral binder composition, wherein the curable material is applied layer by layer in an additive method, in particular in an additive free-space method, by a printing head that can be moved in at least one spatial direction and wherein an application rate of the curable material and the temporal development of strength of the curable material are coordinated with each other.

Abstract: 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.

Abstract: A system for applying a tile adhesive, including: an adhesive supplying device for supplying the tile adhesive on a surface of a tile, including a nozzle for emerging the tile adhesive and a pump unit for pumping the tile adhesive in the direction of the nozzle; and an automated supporting and moving device, in particular robot, for supporting and positioning the tile with respect to the nozzle so that the tile adhesive is distributable onto the surface of the tile when emerging from the nozzle.

Abstract: A cementitious adhesive composition, in particular a tile adhesive, especially for use in automatic tiling systems, includes 10-70 wt.-% of a hydraulic binder, in particular cement, 20-90 wt.-% of aggregates, in particular sand and/or calcium carbonate, and 0.01-5 wt.-% cellulose ether.

Abstract: A mixer includes a drum having at least one inlet and one outlet. The mixer furthermore includes a drive and a stirring shaft, which is arranged in the drum and is coupled to the drive. Furthermore, the mixer includes a conveying device, which is arranged in the drum and which is arranged on one and the same axis as the stirring shaft.

Abstract: The present invention relates to a fluoride-free solidification and hardening accelerator for hydraulic binders, comprising sulfate, aluminum and organic acid, the molar ratio of aluminum to sulfate being less than 0.83.

Abstract: The invention relates to the determination of the dynamic elastic modulus of a material, such as a material comprising a mineral binder like cement, or gypsum, or the like, or a polymer, or ceramic, preferably mortar or concrete, in particular shotcrete, using sound, preferably ultrasound waves which penetrate the material and are continuously measured and analyzed. In particular, the invention relates to an apparatus, to a measuring device, and to a method for determining the dynamic elastic modulus of a material using the apparatus.

Abstract: The present invention relates to a fluoride-free solidification and hardening accelerator for hydraulic binders, comprising sulfate, aluminium and organic acid, the molar ratio of aluminium to sulfate being less than 0.83.

Abstract: The invention relates to the determination of the dynamic elastic modulus of a material, such as a material comprising a mineral binder like cement, or gypsum, or the like, or a polymer, or ceramic, preferably mortar or concrete, in particular shotcrete, using sound, preferably ultrasound waves which penetrate the material and are continuously measured and analyzed. In particular, the invention relates to an apparatus, to a measuring device, and to a method for determining the dynamic elastic modulus of a material using the apparatus.