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Based on fly ash light-weight cementing composition with high compressive strength and fast setting Invention relates to method of manufacturing fast setting light-weight cementing composition with improved compressive strength for building products such as panels. Method of obtaining light-weight cementing mixture, which has improved compressive strength and resistance to water, includes mixing water, cementing reacting powder, alkali metal salt of citric acid as set accelerator and light-weight filling agent, where weight ratio of water to reacting powder constitutes approximately 0.17-0.35:1.0, reacting powder includes 75-100 wt % of sol dust, which contains at least 50 wt % of fly ash of class C and 0-25 wt % of hydraulic cement and/or gypsum, setting of cementing mixture being achieved within from 4 to 6 minutes of composition mixing without addition of set retarder. Invention also deals with composition for obtaining light-weight cement panel. |
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Crude mixture for producing heat-insulating materials Invention relates to construction materials as well as to production of artificial heat-insulating materials. The crude mixture for producing heat-insulating materials contains the following in wt %: quarry diatomite 53-67, dry diatomite powder or powdered wastes from abrasive treatment of calcined foamed diatomite articles with moisture of not more than 8% 5-10, chalk 10-12, calcined soda 17-22, oil coke 1-3. |
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Invention relates to mortar and can be used to make plaster, in brick laying and in tile joining layers. The mortar contains the following in wt %: cement 21.0-21.9, fine aggregate - quartz sand 58.7-59.3, finely ground filler - finely ground dunite 4.2-4.3, sodium sulphate 0.6-1.5, water - the rest. |
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Fireproof concrete mixture FCM is intended for lining of various heating units, for instance, shelters of main and transport chutes of blast furnace production, reinforcement layer of intermediate buckets, repairs of suspended domes of continuous furnaces. FCM contains, wt %: andalusite - 31-39, including: fractions 0-1 mm - 12-17, fractions 160 mcm -19-22, annealed fireproof clay of fraction 1-7 mm with content of Al2O3 of at least 45 wt % - 45-53, reactive alumina - 9-12, finely dispersed silica - 2.0-3.5, highly aluminous cement - 2.0-3.5, sodium tripolyphosphate (over 100%) - 0.12-0.15, citric acid (over 100%) - 0.012-0.015, organic fibre (over 100%) - 0.06-0.15. |
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Ash mineral mix for ash gravel Ash mineral mix for ash gravel contains, wt %: sand with fraction of up to 3 mm 10-15, ash from burning of waste water residue with specified surface of 200-300 m2/kg, apparent density of 0.7-0.8 m3, content of SiO2 50-60% and pH 12-13.5 60-65, portland cement of not less than 400 9-12, oil road bitumen 8-10; water 10-15 of mix weight. |
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Crude mixture for preparing porous aggregate Invention relates to construction materials and specifically to production of porous aggregates for light concrete and heat insulation backfilling. The crude mixture for preparing porous aggregate contains the following in wt %: pit-run diatomite 76.5-84.5, sodium hydroxide in terms of Na2O 6-15, colophony 0.5, dry or burnt diatomite powder 5-10. |
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Coating composition and coating process Urea resin coating composition contains hollow glass and-or aluminosilicate microspheres of diametre 100-300 mcm, functional additives chosen from the group including ammonium polyphosphate, wollastonite, microcalcite in ratio of glass to aluminosilicate microspheres 1:1. Work surface coating process involves separated preparation of two reagents, one representing compound diamine reaction component A mixed with powder filling mix, containing wt %: hollow microspheres 80-85 and functional additives 15-20, and another reaction component B representing diisocyanate. It is followed with separate, but simultaneous uniform dispersion of compound component A and component B on a coated surface. Once reaching thereof, both components instantly form polymeric binding agent - urea resin with components of powder filling mix being uniformly distributed. Diamine and diisocyanate are taken in equimolar ration required to produce urea resin. |
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Dry construction mixture contains cement, mineral filler with particles size less than 5 mm including sand and zeolite - containing rock in a 1:1 ratio, given the following components ratio, in wt %: cement - 18.75-25. sand - 37.5-40.625, zeolite - containing rock - 37.5-40.625. |
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Proposed coat is made from composition containing the following components: binder in dry state, hollow micro-spheres and water to required consistency. Binder is selected from group containing the following components: dry copolymer re-dispersible powder or mixture in the amount of up to 95 mass-% with dry re-dispersible water glass in the amount of up to 80 mass-% and/or with cement in the amount of up to 60 mass-%. Used as follow micro-spheres is borosilicate glass at bulk density of 0.05-0.35 g/cm3. Composition may also contain filler in the amount of up to 45 mass-%. |
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Concrete comprises glass filler (glass fragments) and concrete corrosion inhibitor, which suppresses concrete expansion caused by reaction between concrete alkalis and filler silica. Concrete production method involves mixing cement, sand, glass filler, concrete corrosion inhibitor and water. The concrete corrosion inhibitor is silica gel having particle dimensions not greater than 50 μm and taken in amount of 4%-8% of cement mass. Free alkali content in cement grout recalculated to Na2O exceeds 0.6. |
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Invention relates to compositions of dry mortar mixes based on cement binder and mineral aggregate such as sand intended to prepare finishing mortars and manufacture cast-in-place floors. Dry building mix including cement (27-35%), sand fractions ≤0.63, 0.63-1.25, and 1.25-2.5 mm wherein proportion of each fraction is not higher than 37% of the total weight of sand, and superplasticizer C-3 (0.125-0.180%) further contains carbon white BS-120 in the same amount as superplasticizer (0.125-0.180%). |
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Invention relates to manufacture of dry building mixes and directly concerns use of inorganic materials as aggregates of differing shape and granule size. In a dry building mix including crushed expanded-clay concrete (30-95%) and inorganic aggregate (5-70%), the latter is naturally occurring or synthetic wollastonite crushed to achieve needle-shaped grains. |
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Invention proposes a mixture comprising the following components, wt.-%: low-molecular polybutadiene, 8-12; sulfur, 3.0-5.0; thiuram, 0.4-0.6; Captax, 0.1-0.2; Altax, 0.15-0.25; zinc oxide, 2.0-3.0; calcium oxide, 0.3-0.7; fly ash from the central heating and power plant, 6.0-10.0; quartz sand, 21-28, and granite crushed stone, the balance. The mixture provides the possibility for preparing the composite showing higher chemical stability in hydrochloric acid and nitric acid solutions. After 3 months keeping in 36% hydrochloric acid solution is increased from 0.69 to 0.72. Invention can be used in making chemically stable, high-strength articles and constructions. |
Another patent 2528778.