摘要:
An acoustical panel comprising a continuous phase of an interlocking set gypsum matrix and a method of preparing an acoustical panel are disclosed.
摘要:
The present invention describes improved cellular compositions that contain anhydrite that reaches high compression resistance values, of the order of 110 to 138 Kg/cm2, as well as methods of obtaining of these. The obtained cellular materials with the compositions of the invention can be used like constructive structural materials, and without they present the problems commonly associate to the anhydrous calcium sulphate presence in similar materials.
摘要翻译:本发明描述了改进的细胞组合物,其含有达到110至138Kg / cm 2量级的高抗压性值的无水石膏以及获得这些的方法。 获得的具有本发明组合物的多孔材料可以像结构化的结构材料一样使用,并且不存在与类似材料中的无水硫酸钙存在相关的问题。
摘要:
Cellulose fibers are treated with a surfactant package to improve their use in the formation of viscosity enhancing gel structures in asphalt compositions. In a particular embodiment, the cellulose fibers are obtained from recycling magazines, newspapers and similar such materials, and are used in asphalt compositions that incorporate the use of other viscosity modifiers, such as mineral aggregates and fillers like attapulgite clay. The use of surfactant-treated cellulose fibers improves the formation, strength and durability of the gel structure and reduces the number of manufacturing steps normally required in the process for producing the asphalt compositions. Use of these fibers can eliminate or reduce the need to maintain and handle stocks of potentially harmful and corrosive liquid surfactants.
摘要:
The object of the present invention is to provide an inorganic board whose dimensional stability, anti-freezing and fusing properties, and the like are much improved.To attain this object, an inorganic board is manufactured using a method comprising: preparing a raw material slurry by the dispersing of a cementitious material, silica-containing material, woody reinforcement, and mica in water, forming a papered mat by sheet forming the raw material slurry, pressing the papered mat, and curing the pressed papered mat in an autoclave at a temperature higher than 150° C., wherein the mass ratio of the cementitious inorganic material and silica-containing material is set to be in the range of between 35:65 and 45:55, to promote the curing reaction of the inorganic board and improve its dimensional stability and anti-freezing and fusing properties.
摘要:
A method for making a low embodied energy cementitious mixture by blending a variety of post-consumer wastes, post-industrial wastes, as well as renewable, organic and recyclable materials with Portland cement or a material having similar cementitious properties. The primary materials are recycled concrete, coal-fired fly ash waste, silica fume, post-industrial waste, organic or inorganic waste fibers. Glass, brick, ceramics, ground tires and other waste products, as well as virgin aggregate can also be included in the low embodied energy cementitious mixture.
摘要:
A clay plaster formulation and application. The clay plaster is a mixture of various clays, and aggregate. This plaster is both functional and decorative and is for use on new and existing construction.
摘要:
A cementitious veneer and laminate composition is provided. The cementitious laminate composition includes a substrate, a primer layer applied to the substrate, the primer layer comprising a mixture of polyvinyl alcohol catalyst, Portland cement, and sand; and a cementitious veneer layer applied to the primer layer, the cementitious veneer layer comprising a mixture of magnesium sulfate, filler, magnesium oxide, gypsum cement or bassanite, cellulose ethers, and polyvinyl alcohol catalyst. The polyvinyl alcohol catalyst comprises a mixture of polyvinyl alcohol fibers dissolved in water and mixed with butylene carbonate. The veneer layer is applied to the substrate and primer layer by means including spraying and manual spreading, and can be ornamentally manipulated either before or after curing of the veneer layer. The veneer composition can be formed into laminated tiles or panels for use in building applications.
摘要:
The present patent application relates to a reactive ceramic binder in liquid form which is suitable for producing ceramic products from ceramic powder, characterized in that the reactive, liquid ceramic binder comprises liquid organomodified siloxane compounds having organoalkoxysiloxane units of the general formula (I) where the radicals R1 are, independently of one another, identical or different alkyl, alkaryl or aryl radicals which may be interrupted by ether functions, the radicals R2 are, independently of one another, identical or different radicals selected from the group consisting of H and/or alkyl radicals having from 1 to 6 carbon atoms, the radicals R3 are, independently of one another, identical or different divalent, saturated or unsaturated hydrocarbon radicals which have from 1 to 30 carbon atoms and may be interrupted by ether functions and a is greater than or equal to 0 and less than or equal to 2.5 and b is greater than 0 and less than or equal to 3, with the proviso that a+b is greater than or equal to 1 and less than or equal to 3.
摘要:
The invention generally provides gypsum-containing slurries including stucco, naphthalenesulfonate dispersant, and pregelatinized starch. The naphthalenesulfonate dispersant is present in an amount of about 0.1%-3.0% by weight based on the weight of dry stucco. The pregelatinized starch is present in an amount of at least about 0.5% by weight up to about 10% by weight of pregelatinized starch by weight based on the weight of dry stucco in the formulation. Other slurry additives can include trimetaphosphate salts, accelerators, binders, paper fiber, glass fiber, and other known ingredients.
摘要:
The invention generally provides gypsum-containing slurries including stucco, naphthalenesulfonate dispersant, and pregelatinized starch. The naphthalenesulfonate dispersant is present in an amount of about 0.1%-3.0% by weight based on the weight of dry stucco. The pregelatinized starch is present in an amount of at least about 0.5% by weight up to about 10% by weight of pregelatinized starch by weight based on the weight of dry stucco in the formulation. Other slurry additives can include trimetaphosphate salts, accelerators, binders, paper fiber, glass fiber, and other known ingredients. The invention also comprises the gypsum-containing products made with such slurries, for example, gypsum wallboard, and a method of making gypsum wallboard.