Abstract:
The device for pre-heating cement raw meal for the cement clinker production comprises at least one heat exchanger line for charging cement raw meal in countercurrent flow to the hot gases drawn through the heat exchanger line and a supporting structure (19) for the at least one heat exchanger line, wherein the heat exchanger line comprises a plurality of heat exchangers (8, 9, 10) which are interconnected and through which flow can pass consecutively. The supporting structure (19) comprises stands (20) which jointly form a triangular outline (21) and serve to transfer load into at least one foundation.
Abstract:
In a method for reprocessing wet waste materials containing organic components, in particular sludges in a cement clinker production plant, in which raw meal is preheated in a preheater (3) in countercurrent flow to the hot exhaust gases of a clinker furnace (2), and calcined in a calciner (4) fired with alternative fuels, the wet waste materials are dried in a drying unit (18) using a hot gas produced from the preheater waste heat and the dried waste materials and the drier exhaust gases are discharged from the drying unit (18), wherein the drier exhaust gases are introduced into the calciner (4).
Abstract:
Method for the production of a building material, in particular mortar or concrete from an alkali activated hydraulic binder, in which at least one dispersing agent and at least one set modifier is added to the mix, in which at least the dispersing agent is added after mixing the binder with water.
Abstract:
A method of reroofing, the method comprising of applying to an existing roof surface a membrane composite including a pre-applied adhesive layer by mating the adhesive layer to the existing membrane.
Abstract:
A method for preparing a carbonated mineral for use in cement is provided; wherein a mineral component with a (CaO+MgO)/SiO2 weight ratio of 1.2 to 5.0 is ground to a powder; mixed with water to form a paste; the paste is placed in a reactor in an atmosphere containing CO2; the paste is carbonated in the reactor; and the resulting material is dried to constant weight; or the mineral component is ground to a Blaine fineness between 3′000 cm2/g and 10′000 cm2/g to obtain a powder; during grinding a CO2 rich gas is injected so that the component carbonates; the powder is mixed with water at a weight ratio between 0.3 and 1.5 to obtain a paste, or pre-humidified by adding water at a weight ratio between 0.03 and 0.2; the resulting material is dried to constant weight at 60-85° C.; and the resulting material is deagglomerated and sieved.
Abstract:
A dry cementitious material mixture for 3D-printing, includes a hydraulic cement, a mineral component having a BET-specific surface area of 0.5-30 m2/g, and being present in an amount of 3-50% by weight based on the hydraulic cement, an additional material being one of: at least one viscosity enhancing admixture being present in an amount of 0.01-1.5% by weight based on the hydraulic cement, clay being present in an amount of 0.01-5.0% by weight based on the hydraulic cement, and further optionally comprising aggregates.
Abstract:
A composite comprising (i) a pressure-sensitive adhesive component including first and second planar surfaces; (ii) a fire-resistant fabric adhered to the first planar surface; and (iii) a cap layer disposed on said fire-resistant fabric opposite said asphaltic component.
Abstract:
A method for making a cured rubber sheet, the method comprising providing an uncured rubber sheet, where the uncured rubber sheet includes opposing planar surfaces; applying a curable coating composition to at least one planar surface of the uncured rubber sheet to form at least one layer of curable coating composition, where the curable coating composition includes a polymer with a silicon-containing hydrolyzable terminal group polymer; subjecting the curable coating composition to curing conditions that cure the coating composition and thereby form at least one cured coating layer on the uncured rubber sheet, wherein the at least one cured coating layer includes a cured residue of the polymer with a silicon-containing hydrolyzable terminal group polymer; rolling the uncured rubber sheet having at least one cured coating layer onto itself to form a roll; and subjecting the roll to curing conditions that cure the uncured rubber sheet and thereby forms a roll of cured rubber sheet.
Abstract:
A method of placing a flowable construction material including a hydraulic binder for building structural components layer-by-layer, such as for 3D concrete printing, the method including preparing a fresh flowable construction material made of Portland cement, fine limestone filler materials, fine sands, water, and water reducing admixture and possibly a set or hardening accelerating admixture, conveying the flowable construction material to a deposition head, placing the construction material through an outlet of the deposition head in order to form a layer of construction material, before placing the construction material, adding a rheology-modifying agent to the construction material so that the placed material has an increased yield stress when compared to the material during the conveying step.
Abstract:
A process for the continuous production of cured rubber membrane, the process comprising (i) preparing a continuous stream of curable rubber composition; (ii) forming the continuous stream of curable rubber composition into a continuous green-rubber extrudate; (iii) curing the continuous green-rubber extrudate to form a continuous cured membrane; and (iv) fabricating the continuous cured membrane into rolls of cured membrane, where the curable rubber composition is characterized by at least one of a t90 at 190° C. of from about 1 to about 12 minutes and a T5 at 135° C. of from about 5 to about 20 minutes.