Composición de material de construcción pulverulenta

• Main Authors: STOHR, WERNER, HOLLAND, UWE, PFEUFFER, THOMAS, HUBER, CHRISTIAN, DEGENKOLB, MATTHIAS, RIEDMILLER, JOACHIM, GÄBERLEIN, PETER
• Format: Patent
• Language: Spanish
• Published: 22.09.2014
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; TREATMENT OF NATURAL STONE

Empleo de una composición pulverulenta que comprende a) un material soporte reactivo, así como b) un compuesto polímero líquido aplicado sobre el material soporte para el ajuste del tiempo de elaboración, efectuándose el endurecimiento controlado mediante el desprendimiento del compuesto polímero del material soporte, y apoyándose el desprendimiento mediante la adición de un activador. A delayed action powdery building compound is provided, consisting of a reactive support material and a liquid polymer component applied to the support material. The inventive compound can contain the support material in the form of hydraulic (latent) binder, inorganic additives and/or organic components, and the polymer component for example in the form of polyvinyl alcohols, polyvinyl acetates and MPS-based polymers. The component makes it possible to obtain the delayed liberation of the support material in an aqueous building chemical mixture as a result of a time-depending separation of the polymer component from said support material. The powdery building compound also makes it possible to carry out a time-controlled hardening of hydratable building material mixtures and to obtain a time-controlled internal drying of aqueous dispersion-based materials.