摘要:
Disclosed are an artificial marble composition having a natural marble texture, and a method for producing artificial marble using the same. The artificial marble composition according to the present invention comprises: a first resin mixture; and a second resin mixture which is added to the first resin mixture and has a viscosity different from the first resin mixture, wherein each of the first and second resin mixtures comprises a base resin and an inorganic filler, and wherein the second resin mixture further comprises a thixotropic agent.
摘要:
An improved friction material is described, comprising a binding composition based on a hydraulic binder, and its use in brake pads and industrial applications.
摘要:
The present invention relates to the field of foam formation and stabilization, particularly foamed construction materials, such as cement. Disclosed are additives suitable to obtain mineral foams when added to the corresponding starting materials. The invention provides a ready-to-use product in the form of a solid particulate composition comprising hydrophobized particles (1) and catalytically active particles (2) as defined in claim 1. The invention further provides for manufacturing methods of such ready-to-use product.
摘要:
The present invention relates to the use of a solid comprising at least one organosilane and a carrier material to hydrophobise mortars, wherein the organosilane has the formula R1Si(OR′)3 or R1R2Si(OR′)2 wherein R1 and R2 are the same or different and are a linear or branched C1- to C4-alkyl and/or alkenyl group, OR′ is an acetoxy, a C1- to C4-alkoxy and/or a C2- to C6-methoxyalkoxy and/or ethoxyalkoxy group, and the carrier material is a solid at room temperature. The amount of cement in the final formulation is zero or less than 5 wt.-%, based on the total weight of the final formulation in the dry and uncured form. Claimed are also a powder comprising the silane and a carrier with the carrier being a water-soluble polymer, dry mortar formulations containing no or less than 5 wt.-% cement, based on the dry weight of the uncured mortar formulation, as well as processes to manufacture the formulations and/or compounds.
摘要:
A formulation containing polymer, resin and cement combined with aggregate can be used as a gunnable mix that is applied to a surface by being conveyed pneumatically in dry form to a nozzle, where water is added. Polymer in the gunnable mix enables it to adhere and bond to a surface, such as carbon brick, of a lining of a vessel used for the containment of molten metals. The formulation may be used, for example, to repair and protect blast furnace hearth linings.
摘要:
The present invention provides for a refractory aggregate composition comprising an improved calcium aluminate clinker having the formula CnAx wherein C is calcium oxide and A is aluminum oxide, wherein n is an integer from about 1 to about 12, wherein x is an integer from about 1 to about 24, and wherein said clinker has from zero to less than about fifty weight percent C12A7. Analogs, derivatives and hydrates of the improved calcium aluminate clinker are provided. A refractory composition and a sprayable refractory composition are disclosed comprising the improved calcium aluminate clinker. A method for improving the insulating character and/or penetration resistance of a liner in contact with molten aluminum in an aluminum manufacturing process or during aluminum transport is provided.
摘要:
The invention relates to a composition comprising aluminium oxide, a hydrophobic substance and a fine particulate substance, a method for its production and its use as a starting material in a process which employs an aluminium oxide-containing starting material. More specifically, the composition comprises a first component, a second component and a third component, wherein the first component is a particulate solid with a d 80 value of the particle size distribution of ≤ 500 µm, an Al 2 O 3 content of ≥ 50 weight-% of dry matter, a metal nitride content of ≥ 0.01 weight-% of dry matter and a content of metallic aluminium of ≤ 5 weight-% of dry matter. The second component is a substance with a melting point of ≤ 200 °C, a boiling point of ≥ 40 °C and a solubility in water at 20 °C of ≤ 5 g/l. The third component is a particulate solid with a d 90 value of the particle size distribution of ≤ 20 µm. The particles of the first component are at least partially coated with the second component and the particles of the third component at least partially adhere to the second component.
摘要:
Lightweight mortar and concrete which comprises a hydraulic conglomerate which includes pure Portland clinker, gypsum and common glass in different proportions, mixed together in a micronized manner until a mechanical alloy of the elements is achieved and light aggregates with a grain size and proportion dependent on the resulting product being mortar or concrete with low density, fundamentally cellular glass or arlite, pearlite, vermiculite, slag, expanded polyethylene and/or glass sands of ground glass and/or silica or limestone sands and/or granulated plastic sands.