RussianPatents.com

Highly stable mortar to salt efflorescence generation. RU patent 2376255.

FIELD: construction.

SUBSTANCE: mortar includes Portland cement, sand and brucite burnt at 1000°C during 10 minutes. It contains 97-99 wt % magnesium oxide, which is milled to specific surface 290-310 m2/kg at the following ratio of components, wt %: Portland cement 22.50-24.75, sand 67.50-74.25, the above brucite 1-10.

EFFECT: increased stability of salt efflorescence generation.

1 tbl, 5 ex

 


 

IPC classes for russian patent Highly stable mortar to salt efflorescence generation. RU patent 2376255. (RU 2376255):

C04B28/04 - Portland cements
C04B111/70 - LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS (devitrified glass-ceramics C03C0010000000); REFRACTORIES (alloys based on refractory metals C22C); TREATMENT OF NATURAL STONE
C04B111/20 - LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS (devitrified glass-ceramics C03C0010000000); REFRACTORIES (alloys based on refractory metals C22C); TREATMENT OF NATURAL STONE
Another patents in same IPC classes:
Raw mix for production of cement bonded particle board Raw mix for production of cement bonded particle board / 2376254
Raw mix for producing cement bonded particle board includes the following in wt %: Portland cement 27.06-37.81, milled conifer timber with wooden particles size not exceeding 40 mm in length and 10 mm in width and 5 mm in thickness 20.16-39.95, water 28.39-36.24, liquid soda ash glass 0.71-0.90, industrial cleared aluminium sulfate 0.48-0.61, superplasticising agent SP-1 0.02-0.04, and poly vinyl acetate 3.37-4.26.
Composition for finishing of building facades / 2373168
Composition for finishing of building facades comprises the following components, wt %: 70-percent acrylic dispersion - 4.5-5, white Portland cement - 27-32, white carbonate slag with specific surface of solid particles of 7.000-7.500 cm2g - 10-15, micromarble - 30-35, water - 13-28.5.
Raw mix for production of nonfired items / 2373167
Raw mix for production of nonfired pressed construction items contains the following components, wt %: limestone with particle size of not more than 5 mm - 65-86, Portland cement with grade not below 400 - 5-9, cement dust - 5-30.
Concrete mixture / 2371416
Invention relates to the industry of construction materials, particularly to production of concrete wall blocks. The concrete mixture contains the following, wt %: portland cement 23.0 to 27.0; ash-slag filler with the following chemical composition, wt %: SiO2 40.7, Al2O3 15.8, Fe2O3 13.5, CaO 8.9, MgO 4.3, Na2O+K2O 3.8, SO3 1.4, "п.п.п." 8.5 and particle composition, wt %: larger than 0.63 mm - 0.2, larger than 0.315 mm but smaller than 0.63 mm - 4.8, larger than 0.14 mm but smaller than 0.315 mm - 62, smaller than 0.14 mm - 33, foam polystyrene crumbs with particle size of 10 mm - 1.5-2.0, superplasticiser C-3 30.25 to 0.35, water - 10.0 to 13.0.
Non-sparking double-layer tile and method of making said tile / 2371415
Invention relates to industrial construction materials, and more specifically to double-layer structures and method of making such structures, particularly non-sparking double-layer tiles, meant or covering floors in category A and B fire safety buildings. The non-sparking double-layer tile is in form of a concrete monolithic body with a face layer, which has a regular or irregular geometrical shape, where material for both layers is a mixture, used in semi-dry state, containing, wt %: composition of the mixture of the base layer: portland cement of at least grade 500 DO 20.55 to 22.78, construction sand with particle size 5 mm with fineness modulus of not less than 2.4 72.89 to 75.34, Poliplast MB-1 0.20-0.30, water - the rest; composition of the mixture of the face layer: portland cement of at least grade 500 DO 23.98 to 26.19, limestone in form of sand from siftings from crushing sedimentary rocks with strength grade of at least 400 with particle size 2 to 4 mm and fineness module of not less than 2.4 69.84-71.94, Poliplast MB-1 0.23 to 0.30, water - the rest, where the face layer has thickness of not less than 10 mm. The method of making the said tile involves preparation of each of the said mixtures with moisture content of 6-8% in mixers by successive loading the given filler, additive, portlant cement, stirring dry components for 30 to 60 s, then, while stirring, adding water and continue to stir the mixture for the base layer for 30 to 40 s, and the mixture for the face layer - for 2 minutes, placing the mixture for the base layer into a mould, preliminary compacting with light vibration or ramming without vibration, placing the mixture for the face layer on top of the compacted base layer, final compacting with vibrocompression for 20 to 23 s of the said mixtures and solidification in a steam curing chamber at temperature of 40°C, moisture 95 to 100 % and rate of increase and decrease of temperature not more than 25°C/h. Invention is developed in subclaims.
Raw mixture and method of manufacturing flat and corrugated sheet therefrom Raw mixture and method of manufacturing flat and corrugated sheet therefrom / 2369576
Raw mixture includes, as the bonding agent, quick-hardening cement M500 - 25-30%, ash after bituminous coals have been burnt - 25-35%, microsilica after silicon alloys have been smelted - 10-12%, complex additive "Relamix Type 2" for concretes and solutions - 0.6-0.8%, and mountain sand containing 10-15% of garnet minerals is the rest. The method involves pre-mixing of raw mixture till liquid mass is obtained, its laying on a tray, and drying. At that, on the first layer of pre-mixed raw mixture there laid is mesh reinforcement made from high-strength strands, and one layer of anhydrous or hemihydrate plaster is applied in quantity of 50-100 gram to one square metre of pre-mixed mixture. The second layer of pre-mixed raw mixture is laid on it, and it is subject to packing, hardening and drying processes.
Dry building mixture for maintenance and repair work Dry building mixture for maintenance and repair work / 2369575
Dry mixture includes crushed stone with particle size of 3-10 mm, sand Msize modulus=2.4, cementing material - standard portland cement of the grade not less than 500, superplasticisng agent C-3, ultrahigh early-strength cement on the basis of calcium sulfoaluminate, steel fibre, at the following component ratio, wt %: portland cement - 8.75-13.75%; ultrahigh early-strength cement - 16. 25-11.25%; sand - 44.85%; crushed stone -25.9%; superplasticisng agent C-3 - 0.25%; and fibre - 4.0%.
Concrete composition (versions) Concrete composition (versions) / 2365554
Invention relates to composition of concrete mixtures and can be used in hydrotecnological, meliorative, industrial-civil and transport construction, mainly in technologies of production of construction concretes, gunites and cementation - grouting mortars. Concrete composition for production of construction materials, gunites and cementation works contains, wt %: Portland cement 24.0-25.0, microsilica condensed with specific surface (15-25)·103 cm2/g 4.0-5.5, quartz sand with fraction less than 0.14 mm 20.0-21.0, quartz sand with fraction 1.25-2.50 mm 28.0-31.0, superplastifier C-3 0.4-0.8, ground quartz sand with specific surface (3.5-4.0)·103 cm2/g 6.5-8.0, complex additive - product of combined intensive dry breaking till specific surface is (4.0-4.5)·103 cm2/g of clinker aluminate cement of mark "500" or "600" with part of tricalcium aluminate C3A 8-12%, quartz sand with specific surface (1.5-2.5)·103 cm2/g and dry powder of superplastifier C-3, with ratio 5:4:1, respectively, 2.5-3.0, reinforcing component - chrysolite asbestos 0.6-1.6, sanding dust - waste of asbestos-technical products production 0.6-1.6. In version II concrete mixture contains quartz sand of fraction 2-5.5 mm, in version III - of fractions 1.25-2.5 mm and 2 -5 mm, in version IV - of fraction 1.25-2.5 mm, in version V - of fraction less than 0.4 mm.
Method for control of setting and hardening processes in water-cement systems / 2363686
Invention is related to the field of construction, namely to the field of construction works with application of water cement systems, and may be used in construction and repair works with application of concrete or mortar based on water-cement mixture. Method for control of setting and hardening processes in water-cement systems includes mixing of cement and water with previous treatment of water with acoustic oscillations with frequency from 17.5 to 22.5 kHz until level of energy introduced in water is from 3.0 to 40 kW-hr per 1 m3 of water. Invention is developed in dependent clauses.
Composition for protection of concrete surfaces and method for protection of concrete surfaces Composition for protection of concrete surfaces and method for protection of concrete surfaces / 2363681
Invention is related to compositions of concrete mixes used for protection of concrete surfaces of monolithic precast concrete and reinforced concrete structures of buildings and facilities, and also to methods for application of protective layer on protected surfaces. Composition for protection of concrete surfaces contains the following components, wt %: Portland cement 36.0-38.0; sand 39.0-46.5; sodium nitrate 0.9-1.7; sodium carbonate 2.0-3.0; sodium sulfate 2.5-3.0; calcium chloride 0.05-0.15; calcium carbide 0.75-1.15; calcium hydroxide 0.8-1.0; brine leaching solution - bischofite of sulfate type with density of 1.24-1.35 t/m3, 2.0-3.0; water the rest. Method for protection of concrete surfaces with application of above specified composition includes preliminary treatment of protected surface to depth of open porous system of concrete by means of arrangement of systematically located indents on it to create cellular surface with area that exceeds area of protected surface, water impregnation of cellular surface for 36-48 hours, besides specified area of cellular surface is installed depending on temperature of concrete impregnated with water prior to application of protective composition on it based on the following expression: S=[1.4-k(t-5)]·ω, where S is area of cellular concrete surface, m2; k=0.01°C-1 - size coefficient; t - concrete temperature, °C; ω-area of protected surface, m2.
Raw mix for production of cement bonded particle board Raw mix for production of cement bonded particle board / 2376254
Raw mix for producing cement bonded particle board includes the following in wt %: Portland cement 27.06-37.81, milled conifer timber with wooden particles size not exceeding 40 mm in length and 10 mm in width and 5 mm in thickness 20.16-39.95, water 28.39-36.24, liquid soda ash glass 0.71-0.90, industrial cleared aluminium sulfate 0.48-0.61, superplasticising agent SP-1 0.02-0.04, and poly vinyl acetate 3.37-4.26.
Raw mixture for manufacturing gypsum items / 2375327
Raw mixture for manufacturing gypsum items includes the following, wt %: gypsum 64-74; fibrous filler-flakes of capron fibres from 10-1000 ultimate fibres 1-50 mm long 0.5-1.5; calcium lignosulphonate 0.5-1; vinyl acetate polymer 0.1-0.2; bitumen emulsion 0.1-0.2; amylose 0.1-0.2; water 23.0-34.6.
Putty / 2375326
Putty includes the following, wt %: cement 61.37-65.75, clay 2.0-3.0, water 30.0-34.0, lime glue 1.0-1.4, carboxymethyl cellulose 0.03-0.05, and superplasticising agent C-3 0.6-0.8.
Method of making heat-resistant concrete / 2374209
Invention relates to the industry of construction materials and can be used in making construction objects and structures from heat-resistant concrete. The method of making heat-resistant concrete involves batching filler and binder components, stirring them, moulding objects and hardening, with subsequent ageing. The filler used is waste ash-slag mixture from Irkutsk thermal power plant 6 in Bratsk with packed density ρ=1250 to 1330 kg/m3, moisture 3 to 4%, consisting of 20 to 47% broken slag with particle size of 5 mm and 80 to 53% slag sand with fineness modulus of 4.41 to 3.57, with the following ratio of fractions, %: 5 mm fraction - 20.0 to 47.0, 2.5 mm fraction - 10.0 to 26.6, 1.25 mm fraction - 11.0 to 11.2, 0.63 mm fraction - 9.0 to 23.0, 0.315 mm fraction - 2.0 to 9.0, 0.14 mm fraction - 7.8 to 11, less than 0.14 mm fraction - 2.2 to 10. Ash alkaline binder is used, consisting of field I flue ash, obtained from burning brown Kansko-Achinsky coal at thermal power plant 7 in Bratsk Irkutsk region, and liquid glass from multitonnage wastes from ferrosilicon production at the ferro-alloy-microsilica Bratsk factory with packed density of 230 to 245 kg/m3 and containing fine crystalline graphite particles and β-modification of silicon carbide in amount of 10 to 13%, with silica modulus n=1 and density ρ=1.33-1.41 g/cm3, with the following ratio of components, wt %: said flue ash 17.2 to 40.3, said liquid glass 19.8 to 31.2, said slag sand 10.3 to 24.1, said broken slag 27.2 to 41.0. Objects are moulded at pressure 1 to 5 MPa. Solidification takes place in a stream treatment chamber at 80°C in a 2+3+3+3 hour mode with subsequent holding steamed objects from which forms have been removed for 30 to 60 days at ambient temperature of 20 to 25°C.
Raw mixture for making heat resistant concrete / 2374203
Invention relates to a composition of raw mixture for making heat-resistant concrete. The raw mixture for making heat-resistant concrete contains, wt %: aluminium-chromium phosphate binder 15 to 18, electromelted corundum 18 to 26, technical alumina 37 to 41, blast-furnace slag 9 to 15.5, wastes from limestone sawing 4 to 10, mixture of silicon and sodium nanoparticles SiO2 and Na2O 1.5 to 2.5.
Composition and method of making unfired quartzite heat-resistant concrete / 2374202
Invention relates to the industry of construction materials and can be used in making objects from quartzite heat-resistant concrete, obtained without precalcination 1. The composition for making unfired quartzite heat-resistant concrete contains, wt %: quartzite filler 70 to 91, fine quartzite 6 to 20, sodium silicate lumps in form of nanoparticles 1 to 4, fine dolomite 2 to 6, water in terms of B/T 0.12 to 0.14. The method of making unfired quartzite heat-resistant concrete from the said composition involves converting sodium silicate lumps into nanoparticles through dehydration dispersion of hydrated sodium silicate lumps finely ground to specific surface area of 2500 to 3000 cm2/g at temperature ranging from 200 to 600°C, mixing quartzite filler, fine quartzite and dolomite with addition of an aqueous mixture of sodium silicate lumps in form of nanoparticles at temperature ranging from 80 to 90°C while stirring, and then water at temperature ranging from 80 to 90°C, stirring the obtained mixture, moulding objects from the mixture and treatment of the object with thermal shock at temperature ranging from 250 to 300°C for 1 to 2 hours.
Raw mixture for making heat-resistant ash-slag concrete / 2374200
Invention relates to the industry of construction materials and can be used in making structures and objects from heat-resistant concrete based on ash-slag filler and allows for efficient use of multitonnage industrial wastes. The raw mixture for making heat-resistant ash-slag concrete contains, wt %: 35.0 to 60.0 filler - dump ash-slag mixture from Irkutsk thermal power plant 6 in Brask, from burning brown coal from KATEK Irsh-Borodin open-pit coal mine with packed density of the ash-slag mixture ρpack=1350-1400 kg/m3, consisting of 10% ash and 90% slag, with particle size from 0.315 to 5.0 mm and moisture from 2 to 3% with the following fractions in the given ratios, %: 5 mm fraction - 22.44, 2.5 mm fraction - 29.56, 1.25 mm fraction - 12.44, 0.63 mm fraction - 25.56, 0.315 mm fraction - 10.0, and binder from flue ash from burning brown coal from Kansko-Achinsky thermal power plant 7, Bratsk field 1 with ρpack=800-850 kg/m3 and sieve No.008 residue - 6.7%, 17.8 to 38.9, and liquid glass from wastes from production of ferrosilicon at the Bratsk ferro-alloy - microsilica production factory with ρpack=230-245 kg/m3 and containing fine grained crystalline impurities in form of graphite and β-carborundum in amount ranging from 10 to 13%, with silica module n=1 and density ρ=1.32-1.35 g/cm3, 20.0 to 30.2.
Raw mix for production of nonfired items / 2373167
Raw mix for production of nonfired pressed construction items contains the following components, wt %: limestone with particle size of not more than 5 mm - 65-86, Portland cement with grade not below 400 - 5-9, cement dust - 5-30.
Construction mortar Construction mortar / 2373166
Construction mortar comprises the following components, wt %: Portland cement 26.18-32.18, aluminous cement 3.76-4.56, dolomitised limestone with size of 100 micron - 7.34-9.34, sand for construction works with fraction from 0 to 0.63 mm - 37.3-38.3, superplasticiser C-3 1.88-2.48, magnesium sulfate 1.37-1.97, water 16.17-17.17.
Complex additive for concrete mix / 2373165
Complex additive contains product of alkylation of phenol production wastes on the basis of cumylphenol and dimers of α-methyl sterol with oxygen-containing organic substances, sodium sulfate and sodium formate at the following ratio of components, wt %: product of phenol production waste alkylation on the basis of cumylphenol and dimers of α-methyl sterol with bifunctional oxygen-containing organic substances - 70.0-80.0; sodium sulfate - 8.0-12.0; sodium formate -12.0-18.0.
Raw mix for production of cement bonded particle board Raw mix for production of cement bonded particle board / 2376254
Raw mix for producing cement bonded particle board includes the following in wt %: Portland cement 27.06-37.81, milled conifer timber with wooden particles size not exceeding 40 mm in length and 10 mm in width and 5 mm in thickness 20.16-39.95, water 28.39-36.24, liquid soda ash glass 0.71-0.90, industrial cleared aluminium sulfate 0.48-0.61, superplasticising agent SP-1 0.02-0.04, and poly vinyl acetate 3.37-4.26.
© 2013-2014 Russian business network RussianPatents.com - Special Russian commercial information project for world wide. Foreign filing in English.