Class / Patent application number | Description | Number of patent applications / Date published |
106816000 | Particle size specified | 8 |
20090107364 | Hydraulic binding agent - The invention relates to a hydraulic binding agent comprising a binding agent component having free-flowing or solidifying properties when water is added and an acceleration component which is used to accelerate solidification. The acceleration component contains ultrafine calcium hydroxide having a high specific surface and low grain size. | 04-30-2009 |
20090266273 | PULVERULENT COMPOSITION COMPRISING A HYDRAULIC BINDER AND A PYROGENIC METAL OXIDE - Pulverulent composition comprising at least one hydraulic binder having a d | 10-29-2009 |
20110073016 | HEAVYWEIGHT AGGREGATE AND HEAVYWEIGHT CONCRETE - The invention has an object to provide a heavyweight fine aggregate and a heavyweight aggregate for a stiff heavyweight concrete having a slump of 0 to 3 cm, in which segregation from the cement paste is unlikely to occur, and to provide a stiff heavyweight concrete having a slump of 0 to 3 cm, using the heavyweight fine aggregate and heavyweight aggregate. The heavyweight fine aggregate comprises no less than 20 wt % of aggregate having a particle size smaller than 0.15 mm, and no less than 20 wt % of aggregate having a particle size from 2.5 mm to less than 5 mm. The above feature allows effectively inhibiting segregation between the aggregate and cement paste when blending the aggregate into the heavyweight concrete, and allows effectively increasing the filling rate in boxes when blending the aggregate into the heavyweight concrete for box filling. | 03-31-2011 |
20110232533 | METHOD FOR PRODUCING CALCIUM SILICATE-BASED BONE CEMENT - One aspect of the present invention provides a method for producing calcium silicate-based bone cement, including the steps of mixing calcium salt with silicohydrides to form a first mixture; processing the first mixture with a sol-gel process to form a second mixture; heating the second mixture to form a dried mixture; grinding the second mixture into powder; and adding the powder to water or phosphate solution. | 09-29-2011 |
20120042807 | POWDER FOR THERMAL SPRAYING AND METHOD FOR FORMING THERMAL-SPRAY DEPOSIT - Disclosed is a thermal spray powder of granulated and sintered cermet particles. The granulated and sintered cermet particles have an average particle size of 5 to 25 μm. The particles have a compressive strength of 50 MPa or higher. The particles have a straight ratio of 0.25 or higher, the straight ratio being defined as a value resulting from dividing the maximum thickness of a thermal spray coating obtained, when 150 grams of the thermal spray powder is subjected to thermal spot spraying, by the length of the longest of line segments each of which has both ends thereof on a contour of the spray coating. The granulated and sintered cermet particles have an average aspect ratio of preferably 1.25 or lower. The thermal spray powder is preferably used in applications where a thermal spray coating is formed by high-velocity flame spraying or cold spraying. | 02-23-2012 |
20120152154 | CEMENTITIOUS FORMULATIONS AND PRODUCTS - Cementitious formulations and their products with enhanced reactivity are provided. Formulations in certain embodiments may include at least one calcium source, a reactant and a filler in a hydrated environment, wherein the reactant, in one form, is crystalline silica that has been modified for reactivity. Enhancement of a reactant may include one or more modifications to its content, grind and/or the cement to silica ratio, as well as addition of one or more additives in the formulation, additives in the form of at least one alumina source, defoamer, catalyst and/or a clay. | 06-21-2012 |
20140326168 | FIBER REINFORCED CEMENT BASED MIXED MATERIAL - Provided is a fiber reinforced cement based mixed material having high tensile strength and high toughness, the mixed material comprising a cementitious composition with fast development of early strength; a small hydration heat temperature; and a small shrinkage during curing. The fiber reinforced cement based mixed material contains 100 wt. parts of cement, 5-30 wt. parts of silica fume, 30-80 wt. parts of at least one pozzolanic material excluding the silica fume, 5-25 wt. parts of limestone powder, at least one chemical admixture, water, 70-150 wt. parts of aggregate having a largest aggregate diameter of 1.2-3.5 mm, and fibers, wherein at least some of the fibers comprise a fiber having asperities formed in the surface, the fiber having asperities being formed such that a ratio (h/H) of a depth h of each of recessed portions among the asperities to a smallest cross-sectional diameter H thereof is 0.05-0.8. | 11-06-2014 |
20160046532 | RETRIEVING AGGREGATES AND POWDERY MINERAL MATERIAL FROM DEMOLITION WASTE - A method for retrieving aggregates and/or powdery mineral material from a source material comprising hardened mineral binder and aggregates, in particular a waste or demolition material, comprises the steps of: a) treating the source material in a disintegration process and (b) separation of the treated source material at a predefined cut-off grain size in order to retrieve treated aggregates with a grain size of at least the predefined cut-off grain size and/or in order to retrieve powdery mineral material with a grain size below the predefined cut-off grain size. | 02-18-2016 |