Abstract:
Method for coating a matrix with a fire, water and frost-proof barrier as well as the coating thus manufactured. The matrix, which can be a wall in a tunnel, is sprayed-on a first layer of a settable material composition comprising micronized aplite. Then at least one layer of fibre reinforcement is applied on top of the first layer whereafter another layer of sprayable settable material composition is sprayed-on. This third layer comprises aplite, anhydrite, slag and calcite. Both the first and the third layer may also contain conventional hydraulic cements. The applied layers are allowed to set to a hard material.
Abstract:
A cementitious veneer and laminate composition is provided. The cementitious laminate composition includes a substrate (10), a primer layer (20) applied to the substrate (10), the primer layer (20) comprising a mixture of polyvinyl alcohol catalyst, Portland cement, and sand; and a cementitious veneer (30) layer applied to the primer layer (20), the veneer layer (30) comprising a mixture of magnesium sulfate, filler, magnesium oxide, gypsum cement, and polyvinyl alcohol catalyst. The polyvinyl alcohol catalyst comprises a mixture of polyvinyl alcohol fibers dissolved in water and mixed with butylene carbonate. The veneer layer (30) is applied to the substrate (10) and primer layer (20) by means including spraying and manual spreading. The veneer layer (30) can be ornamentally manipulated either before or after curing of the veneer layer (30). The veneer layer (30) composition can be formed into laminated tiles for use in building applications.
Abstract:
The invention relates to a cement roofing tile consisting of two layers. The internal layer is embodied in the form of a basic plate or a blank cement tile, the external layer being a coating containing at least one type of sand and binder. The sand of the coating has different grain-sizes. The maximum diameter of the largest grains is equal to the coating thickness, whereas the minimum diameter of the smallest grains is equal to one third thereof.
Abstract:
A four-fluid and one-powder, coloring-type material for surface treatment composed of an aqueous emulsion of a polymer having hydroxyl or carboxyl groups, a granular siliceous material, a liquid treatment for a substrate, a liquid reinforcement for a substrate, and a colorant. The liquid treatment is a mixture mainly comprising a powdered siliceous material, a calcium-containing material comprising calcium hydroxide or calcium oxide, an organic acid or its salt having an acid dissociation constant of 3 to 5, and water. The liquid reinforcement is a mixture mainly comprising an aqueous solution of an alkali silicate and an organic acid or its salt having an acid dissociation constant of 3 to 5. The colorant which can form coatings excellent in smoothness, strength and water resistance on any substrate is a mixture mainly comprising the above reinforcement, a powdered siliceous material as a leveling agent and a pigment. Tack-free coatings can be formed in a short time and the workability in coating is excellent.
Abstract:
The present invention relates to a cementitious coating with hydrochromatic properties for micro-concrete or normal concrete, mortar, or other construction materials based on cement and ceramics. This cementitious coating in acrylic solution changes its opacity depending on the presence of water and moisture. This color change is reversible after some drying time leaving invisible the markings already existing on the substrate. This cementitious coating comprises the following components, in percentage in weight of the components relative to the total weight of the composition: a) 0.5-30% of hydrochromatic acrylic copolymer emulsion; b) 5-30% of white or gray Portland cement; c) 0.1-30% of finely ground limestone filler; d) 0.01-2% of powdered super-plasticizer; e) 0.01-3% of modified polyvinyl resins; f) 0.01-5% of dispersant of vinyl acetate and ethylene copolymers; g) 15-70% of aqueous acrylic emulsion; and optionally h) 0.1-15% of inorganic pigments.
Abstract:
The present invention concerns a print medium and a method of producing such a print medium. In particular, the present invention is directed to a print medium comprising a substrate having a first and a reverse side, and at least one coating layer on of the substrate sides.
Abstract:
Ein Pflasterstein 1 umfasst einen Tragekörper 2 und eine auf diesem angeordnete Deckschicht 3 aus einem bindemittelgebundenen Füllmaterial. Die Außenseite der Deckschicht 3 bildet die Nutzoberfläche 4 des Pflastersteins 1. Die Deckschicht 3 enthält einen photokatalytischen Stoff oder ein photokatalytisches Stoffgemisch zum Zersetzen von auf der Nutzoberfläche 4 befindlichen Verunreinigungen. Das Bindemittel der Deckschicht 3 ist zumindest in ihrem nutzoberflächenahen Randbereich durch Einlagerung von Nanopartikeln flüssigkeitsundurchlässig ausgebildet. Zumindest ein Teil der Nanopartikel besteht aus dem photokatalytischen Stoff oder dem photokatalytischen Stoffgemisch. Beschrieben ist ferner eine Oberflächenbefestigung 10, aufgebaut aus einer Vielzahl verlegter Pflastersteine 1 der vorgenannten Art und zwischen den Pflastersteinen 1 befindlicher Fugen 11. Die zwischen den Pflastersteinen 1 befindlichen Fugen 11 sind zum Ermöglichen eines Versickerns von Oberflächenwasser innerhalb der Oberflächenbefestigung 10 wasserdurchlässig.
Abstract:
Die Erfindung betrifft einen Pflasterstein mit einem photokatalytischen Stoff an seiner Oberseite sowie eine Oberflächenbefestigung mit einer Vielzahl derartiger verlegter Pflastersteine. Um den Pflasterstein vielfältiger ersetzbar zumachen, wird erfindungsgemäss vorgeschlagen, den photokatalytischen Stoff so auszubilden, dass er in der Lage ist, eine Verschmutzung mit eventuell enthaltenen Schadstoffen an der Oberseite des Pflastersteins unter Einwirkung von Licht abzubauen.
Abstract:
Provided are a coating material for a concrete structure and a construction method using the same, and more particularly, a coating material for a concrete structure with a three-dimensional network structure, which includes a prepolymer having a hydrophilic functional group, a prepolymer having a hydrophobic functional group, and calcium aluminum silicate, and a construction method using the same. The coating material has a high adhesion to concrete, good endurance, freezing and tolerance resistance to crack stress generated in concrete itself, and good chlorine resistance, acid resistance, alkaline resistance, and ozone resistance. In addition, it can be conveniently used even in a wet state and has high compression strength and flexural strength and does not cause environmental contamination due to solvent evaporation in construction and is not harmful to the human body and is not flammable. Accordingly, it can be used as a coating material for preventing water permeation and corrosion, and also for repairing and reinforcing concrete structures.
Abstract:
A concrete moulding with a shining surface is treated with an alkaline silicate solution in order to increase the shining effect and to better bind the shining pigment into a concrete matrix.