摘要:
The invention concerns a composition containing a) 2 to 80 weight % of Ordinary Portland Cement with respect to the total weight of the composition b) 2 to 80 weight % of a calcium sulphate based binder with respect to the total weight of the composition, with the proviso that the weight ratio of a) Ordinary Portland Cement to b) calcium sulphate based binder is from 95/5 to 5/95 and c) at least one retarder for calcium sulphate based binders, the retarder being a chemical structure, which comprises from 3 to 70 amino acids. Also concerned is the use of the compositions for self levelling underlayments, tile adhesives, non-shrink grouts, floor screeds and repair mortars.
摘要:
The present invention is related to an inorganic building material comprising boron oxide compounds which are different to conventional raw material mixtures. The mixture having a gel consistency formed following the mixture of raw materials with different characteristics, chemical content, and organic and metallic foaming agents with water is then sized by being foamed after dragged in air as a function of time, following this it is cured under high pressure and is given mechanical resistance, low density and nonflammability characteristics.
摘要:
The present invention concerns aqueous slurries with improved rheological stability under increased temperature. The slurries comprise a calcium carbonate containing material and at least one comb polymer.
摘要:
A method to provide acid etch resistance to contacting a calcareous substrate with a copolymer prepared from fluorinated methacrylate, short chain branched (meth)acrylate, and (meth)acrylic acid salt and a treated substrate.
摘要:
Die vorliegende Erfindung betrifft ein hydrothermal gehärtetes Poren- oder Schaumbetonmaterial aufweisend ein Feststoffsteggerüst, welches aus einem Schaum resultierende oder durch einen Treibprozess erzeugte Poren umgibt, wobei das Feststoffsteggerüst Calciumsilikathydratphasen, Mikroporen und zumindest einen inerten Zusatzstoff aufweist, wobei das Feststoffsteggerüst als inerten Zusatzstoff gefälltes Calciumcarbonat und/oder gefälltes Calciummagnesiumcarbonat und/oder Kreide aufweist, sowie ein Verfahren zur Herstellung des Poren- oder Schaumbetonmaterials und die Verwendung von gefälltem Calciumcarbonat und/oder gefälltem Calciummagnesiumcarbonat und/oder Kreide als Zusatzstoff bei der Herstellung des Poren- oder Schaumbetonmaterials.
摘要:
Process for the preparation of cement / mortar / concrete compositions or systems, (for simplicity hereafter "cement" compositions or systems), featuring an improved compressive strength Rc namely at 28 days and 90 days, containing at least a "carbonate-based filler", comprising at least one step where the said at least one "carbonate-based filler" is mixed or blended with at least one aluminosiliceous material, and the obtained "fillers blend" is treated with an efficient treating amount of at least one treating agent consisting of or comprising superplastifier(s); PRODUCT comprising at least a " carbonate- based "filler" " as defined and at least an aluminosiliceous material, what provides a "fillers blend"; cement compositions, use of the said "fillers(s) blends" and cement composition; cement elements or cement products" obtained from the said "cements compositions", such as construction or building blocks.
摘要:
PROCESS for the preparation of cement / mortar / concrete compositions or systems, (for simplicity hereafter "cement" compositions or systems or even "cements" ), of a generally known type containing low or medium (standard) "filler(s)", and/or optionally HP filler(s), as carbonate - based filler(s), namely coarse low or medium calcium carbonate(s) , namely coarse marble(s) ; Product comprising, or consisting of, the pre - blend (A) of coarse , low or medium (or optionally HP) "calcium carbonate - based filler" pre-blended with at least an UF ; Aqueous compositions (B) obtained by mixing the above pre-blend (A) of coarse filler(s) with UF(s) with an aqueous system such as mix water, aqueous mix fluid ; Product (C) consisting of, or comprising,the pre-blend (A) or the compositions (B) , treated or pretreated with at least one superplastifier or aqueous system containing superplastifier(s) ; Cement and Use of cement.
摘要:
A joint compound with improved crack resistance is formed by combining water, a filler such as calcium carbonate, a latex emulsion binder, a thickening system such as methyl hydroxyethyl cellulose, and nanocrystalline cellulose. The nanocrystalline cellulose is provided in an amount effective to reduce the crack formation during drying.