摘要:
A suspension comprising: a suspending liquid comprising a hydrophobic liquid, wherein the hydrophobic liquid hydrolyzes when placed in contact with an aqueous fluid to form one or more hydrophilic product; and a solid particle suspended in the suspending liquid, wherein the suspension is a density-matched suspension is disclosed herein. The specific gravity of the suspending liquid may be within about 5% of the specific gravity of the solid particle. A cement composition comprising: a cement; water; and a suspension according to the invention is also disclosed.
摘要:
The invention relates to a copolymer including a main hydrocarbon chain and side groups comprising carboxyl groups and polyoxyalkyl groups, characterized in that the copolymer further comprises gem-bisphosphonate groups. The invention also relates to an additive for suspensions of inorganic particles including said copolymer and to a method for preparing said copolymer. The invention finally relates to the use of said copolymer for fluidifying and maintaining the fluidity of suspensions of inorganic particles and for reducing the sensitivity of hydraulic compositions to clays and alkaline sulfates, as well as to a composition of inorganic particles including said copolymer.
摘要:
L'invention se rapporte à un concept de décoration de support, en particulier de surfaces intérieures de bâtiment, concept dans lequel on utilise une composition sèche destinée à être mélangée avec de l'eau pour préparer plus facilement une pâte applicable sur le support, en vue de réaliser un revêtement décoratif ayant un "toucher béton", un "aspect béton", une "dureté béton", et qui de surcroît est décollable à la décolleuse à papier peint. L'invention concerne un procédé d'obtention d'un revêtement décoratif béton par mélangeant avec de l'eau une composition pulvérulente sèche comprenant en pourcentages massiques sur sec : de 30 à 60 de ciment, de 30 à 60 de charge, de 0,5 à 10 d'au moins un agent absorbant, de 0,01 à 1 d'au moins un agent fibreux de flexibilité, de 0,01 à 3 d'au moins un retardateur de prise, de 0,01 à 1 d'agent mouillant, de 0,1 à 20 de particules décoratives, de 0,5 à 10 d'au moins un durcisseur, et de 0 à 1 d'au moins un colorant. Cette procédé est mise en oeuvre par des outils comme une taloche crantée pour l'application de la pâte, un peigne éventail pour réaliser un effet griffé, une brosse à poils de nylon pour réaliser un effet brossé ou peigné, une spatule biplaque à structures pour réaliser un effet rayures ou stries.
摘要:
A lightweight concrete composition containing from 10 to 90 volume percent of a cement composition, from 10 to 90 volume percent of particles having an average particle diameter of from 0.2 mm to 8 mm, a bulk density of from 0.03 g/cc to 0.64 g/cc, an aspect ratio of from 1 to 3, and from 0 to 50 volume percent of aggregate; where the sum of components used does not exceed 100 volume percent, and where after the lightweight concrete composition is set it has a compressive strength of at least 1700 psi as tested according to ASTM C39 after seven days. The concrete composition can be used to make concrete masonry units, construction panels, road beds and other articles.
摘要:
The invention relates to a concept for the decoration of a support, in particular of interior surfaces of a building, in which concept a dry composition, intended to be mixed with water, is used to more easily prepare a paste that can be applied to the support, with a view to producing a decorative coating having a “concrete feel”, a “concrete appearance”, a “concrete hardness”, and which can moreover be removed using a wallpaper steam stripper. To achieve this objective, the invention firstly relates to a dry pulverulent composition comprising, in weight percent on a dry basis: from 30 to 60 of cement, from 30 to 60 of filler, from 0.5 to 10 of at least one absorbent, from 0.01 to 1 of at least one fibrous flexibilizing agent, from 0.01 to 3 of at least one retarder, from 0.01 to 1 of wetting agent, from 0.1 to 20 of decorative particles, from 0.5 to 10 of at least one hardener, and from 0 to 1 of at least one colorant. The invention also relates to a method of preparing a paste by mixing this composition with water, and also to a method of obtaining a concrete decorative coating. The invention also relates to the tools used for this method, namely, in particular, a notched float for the application of the paste, a fan rake for creating a scratched effect, a nylon bristle brush for creating a brushed or combed effect, a two-blade structuring spatula for creating a striped or striated effect. The invention finally relates to a decorative coating kit for interior surfaces of a building comprising the aforementioned composition, at least one of the aforementioned tools, (optionally) a smoothing spatula and at least one of the following components or accessories, primer for basecoats, sponge for blending effect, specific colorant, product for white or coloured haze, protective varnish or wax.