Matches 151 - 187 out of 187 < 1 2 3 4


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4240840 Cementitious compositions  
Cementitious compositions having a modulus of rupture greater than 20 MN/m2 are prepared by subjecting a mixture of hydraulic cement, fine aggregate, a selected water-dispersible polymer and water...
4212682 Process and apparatus for producing an aggregate material from bottom ash  
A process and apparatus are disclosed for producing a cinder material useful as an aggregate in building materials such as building blocks or paving materials. The aggregate is produced from solid...
4196008 Aqueous gypsum composition  
A composition for securing a fixing element such as a dowel in a drillhole in a rock mass comprises alpha gypsum gauged with a solution of a water-soluble salt of carboxy methyl cellulose...
4192690 Fiber-reinforced hydraulically hardenable shaped objects  
The invention relates to a process for the preparation of fiber-reinforced cement-based hydraulically hardenable shaped objects, which comprises spraying matrix and fibers with a spraying...
4188233 Process for preparing hydraulic binding materials of high bonding capacity from glassy pyrogenic rocks  
There is disclosed a process for preparing hydraulic binding materials having a high bonding capacity, starting from glassy pyrogenic rocks. According to the invention glassy pyrogenic rocks are...
4144077 High temperature cement system  
A high temperature cement system including a carbon-containing, low volatile material additive admixed with cement in proportions sufficient to provide a fixed carbon content of at least 0.02...
4132555 Building board  
A composition suitable for the manufacture of shaped articles comprising (i) a water-settable inorganic binder which is one or more of a calcium silicate binder, Portland cement, aluminous cement,...
4126598 Concrete electrical insulator  
An improved electrical grade concrete insulator is prepared from a mixture of aggregate, a hydantoin epoxy resin and, optionally, cement.
4113504 Disposal of heavy metal containing sludge wastes  
The heavy metal content of sludge waste is fixed in a cementitious solid product by mixing the waste sludge with fixing ingredients comprising vermiculite and cement.
4102700 Process for the production of a mixture to be utilized in the production of building materials and a device for carrying out the process  
The present invention provides a method for producing a mixture of materials of differing compositions, particularly a mixture comprised of two burned, sintered, calcined, and/or heated inorganic...
4090884 Inhibitors for alkali-glass reactions in glass fiber reinforced cement products  
A glass reinforced cement composition containing a scavenger material as an inhibitor to prevent or greatly reduce attack and degradation of the glass reinforcement by the alkali content of the...
4038094 Molding composition  
A molding composition, made of earth products, which is particularly suitable for producing urns and frames for mausoleum niches and other decorative articles. In its dry state the molding...
4017322 Method for reinforcing aqueous hydraulic cement  
Aqueous solutions containing phosphoric acid, phosphate, or a salt of titanium, zirconium or hafnium are useful for forming coatings on the glass fiber surfaces. Such coatings may be formed by...
4013478 Process for increasing resistance of glass products to cement and cementitious mixtures thereof  
A process is disclosed to increase the resistance of glass products to alkaline cement liquors by coating the surface of the glass products with an effective amount of a water-soluble zinc...
4002482 Glass compositions suitable for incorporation into concrete  
Glasses suitable for use as long term reinforcing agents for a cementitious matrix, e.g., Portland cement, or concrete. The glasses are preferably in the form of continuous filaments, short...
3982954 Pozzolan and concrete product thereof  
An improved pozzolan is fabricated from scoria cinder processed to a particle size below 10,000 Blaine. When incorporated with the cement in a concrete mixture, this pozzolan imparts rapid tensile...
3969567 Improvements in and relating to board products  
A fire-resistant board product is comprised of a hydraulic cement binder reinforced by a mixture of long and short staple vitreous fibres, silica in an amount at least sufficient to react with the...
3954490 Coating compositions for glass fibres  
A cementitious product and production method wherein the product comprises cement with reinforcing glass fibres therein which are coated with a composition which consists essentially of a...
3902912 Glass fiber reinforced cement  
Alkali resistant, fiberizable glass compositions are disclosed. These compositions contain TiO2, La2 03 or CeO2. The glass fibers formed from these compositions are useful in the reinforcement of...
3859106 AUTOCLAVED MATERIALS  
An autoclaved calcium silicate product comprises reinforcing fibres of an alkali-resistant glass containing zirconia.
3849111 METHOD FOR PURIFYING AND AGGLOMERATING PYRITE CINDERS  
Purifying and agglomerating pyrite cinders by subjecting ground pyrite cinders to a flotation operation and cold binding agglomerates of a mixture of the roasted and floated pyrite material and a...
3847633 BUILDING MATERIAL FOR MODULAR CONSTRUCTION  
A lightweight building material having a density in the range of 26 pounds per cubic foot which is moldable so as to be useful in forming prefabricated interior wall panels and the like, to be...
3827895 MOD-WALL CONCRETE  
3827894 CEMENTITIOUS COATING CONTAINING NON-ABRASIVE FILLER  
3823021 CEMENT COMPOSITIONS CONTAINING SODA LIME GLASS  
3799787 ADMIXTURES FOR FILLING NATURAL AND ARTIFICIAL SUBTERRANEAN VOIDS  
3790394 CONCRETES AND REINFORCED CONCRETES WITH A LOW EXPANSION COEFFICIENT  
Concrete is known to have a significant heat expansion coefficient, of about 12.10-6 m/m/°C, which has to be considered in designing structures and which can also affect the cost of such...
3783092 CEMENT COMPOSITIONS CONTAINING GLASS FIBRES  
3607234 STEEL-REFINING COMPOSITION CONTAINING PORTLAND CEMENT AND FLUORSPAR  
A steel-refining agent which is composed of 35% to 65% of Portland cement, 5% to 20% of fluorspar, 20% to 40% of Chamotte powder, 2% to 15% of soda ash, 2% to 15% of a carbon source, which is coke...
3503771 SYNTHETIC AGGREGATE MATERIAL AND A PROCESS FOR PRODUCING SAME  
3366720 Method of producing building blocks  
3147127 Production of glass reinforced cementitious articles  
2991186 Concrete composition  
2987406 High density fly ash fraction  
2945769 Cement composition  
2793130 Pressure molded cement products and methods for producing same  
2780889 Method and apparatus for making foliated glass  

Matches 151 - 187 out of 187 < 1 2 3 4