摘要:
Disclosed is a phosphogypsum-based backfill material, including the following components in parts by weight: 0.2-0.8 parts of water, 0.01-0.3 parts of a cement, 0.01-0.6 parts of a fly ash, 0-0.6 parts of a stone powder, 0-3 parts of a sand, and 0-5 parts of a stone; and further including the following components in parts by weight: 1 part of any one or a combination of two or more selected from the group consisting of phosphogypsum, a modified phosphogypsum, and a modified phosphogypsum powder, and 0-0.5 parts of any one selected from the group consisting of a basalt fiber, graphite, and a steel fiber.
摘要:
A cement mixture for applying to a ceramic honeycomb body that includes: (i) inorganic ceramic particles; (ii) an inorganic binder; (iii) an organic binder containing a hydrophilic polymer and a hydrophilic additive comprising a polymer with a different composition than the composition of the hydrophilic polymer, the additive having a weight average molecular weight (Mw) of at least 1,000,000 g/mol; and (iv) an aqueous liquid vehicle.
摘要:
A hydraulically binding composition can be used to produce an inorganic fire-protection and/or insulation foam. The composition includes: (i) a hydraulic binder, (ii) a blowing-agent mixture, (iii) a thermally expandable compound, and (iv) optionally a foam stabilizer, where the at least one thermally expandable compound, depending on a particle size thereof and an adjusted density of a foamed composition, is present in a quantity such that a foam structure of the foamed composition is not destroyed by expansion thereof during heating of the composition above an onset temperature thereof.
摘要:
Herein are disclosed wall repair compounds comprising at least one or more polymeric binder latex emulsions, one or more inorganic fillers, and comprising an amount of organic polymeric thickener that is less than about 0.1 percent by weight based on the total weight of the wall repair compound. In certain embodiments, the wall repair compound comprises an inorganic filler system selected such that such that synthetic inorganic fillers comprise essentially 100 percent of the inorganic filler used. In certain embodiments, the wall repair compound comprises one or more glycol ether smoothing agents.
摘要:
The present invention relates to a multi-purpose mortar or cement composition for (i) inhibiting the corrosion of steel in mortar or cement structures, (ii) repairing, filling and/or spraying damages, cracks, flaws and cavities in mortar or cement structures and/or (iii) surfacing, coating and/or protecting mortar or concrete surfaces. The present invention further relates to methods of preparation and use of the multi-purpose mortar or cement composition.
摘要:
A composition for applying to a honeycomb body includes a refractory filler, an organic binder, an inorganic binder, and a liquid vehicle, wherein the refractory filler, the particle size distribution of the refractory filler, the organic binder, and the inorganic binder are selected such that, when the composition is applied to plug a plurality of channels of the honeycomb body, the plug depth variability is reduced.
摘要:
A process is provided for forming a rapid-hardening inorganic foam, based on the reaction of the following two components: (a) a solid component in the form of a reactive powder having at the same time structure-building and pore-forming properties, and (b) a liquid component in the form of an alkali metal silicate (water glass). The reactive powder contains the essential constituents: 45-65% by weight aluminum oxide, 10-20% by weight aluminum nitride, and 5-15% by weight metallic aluminum. The alkali metal silicate has a molar ratio of silicon oxide to metal oxide of 1.0 to 2.2. The two components are mixed in a weight ratio of powder to liquid component of 0.5 to 2 to give a paste from which a foamed body having a bulk density of less than 0.7 g/cm3 is then formed in an exothermal reaction within less than 10 minutes.
摘要翻译:提供了一种用于形成快速硬化无机泡沫的方法,其基于以下两种组分的反应:(a)活性粉末形式的固体组分,同时具有结构构造和成孔性能, 和(b)碱金属硅酸盐(水玻璃)形式的液体组分。 反应性粉末含有必需成分:45-65重量%的氧化铝,10-20重量%的氮化铝和5-15重量%的金属铝。 碱金属硅酸盐的氧化硅与金属氧化物的摩尔比为1.0〜2.2。 将两种组分以0.5至2的粉末与液体组分的重量比混合,得到糊料,然后在少于10分钟内在放热反应中形成堆积密度小于0.7g / cm 3的发泡体 。
摘要:
A composition for repairing voids or cracks in a cement sheath or plug comprises an aqueous epoxy resin, a hardener, an alkali-swellable material and an aqueous carrier fluid. The particle size of the alkali-swellable material is preferably smaller than 200 nanometers, thereby allowing the composition to penetrate cracks as small as 60 micrometers. A method for repairing voids or cracks in a cement sheath, thereby restoring zonal isolation, comprises preparing the composition, injecting the composition into voids or cracks in a cement sheath or plug and allowing the composition to viscosify and harden.
摘要:
Provided are plaster patching compositions including lime, sand, perlite and gypsum. Also provided are methods of making and using the compositions to reproduce, preserve, and/or repair plaster, for example, historic plaster.