Mortar
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Highly stable mortar to salt efflorescence generation / 2376255 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. |
 Raw mix for production of cement bonded particle board / 2376254Raw 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. |
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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. |
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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. |
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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. |
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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 / 2369576Raw 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 / 2369575Dry 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) / 2365554Invention 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. |
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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. |
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Highly stable mortar to salt efflorescence generation / 2376255 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. |
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Highly stable mortar to salt efflorescence generation / 2376255 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. |
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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. |
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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. |
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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. |
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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. |
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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. |
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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. |
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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. |
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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. |
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Highly stable mortar to salt efflorescence generation / 2376255 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. |
FIELD: construction.
SUBSTANCE: mortar including cement, sand, additive and water consists of sand having maximum fraction size 0.315 mm, composite chemical additive containing, superplasticising agent Peramin-SRA, cellulose ether at 1% viscosity of solution at 20°C=7000 MPa/sec, expanding additive fro cement Denka CSA and Sodium fluoride at the following ratio of components, wt %: superplasticising agent Peramin-SRA -17.65-18.65; cellulose ether 1% viscous solution at 20°C=1000 MPa/sec - 11.06-11.76; expanding additive Denka CSA - 58.40-58.82; sodium fluoride - 11.29-11.77. In addition, mortar contains dolomite limestone with maximum size of fractions 160 mcm at the following ratio of components, wt %: Portland cement - 29.17-33.3; sand with maximum size of fractions 0.315 mm - 37.05-40.15; dolomite limestone with maximum size of fractions 160 mcm - 11.7-12.5; the above mentioned composite additive - 1.45-1.48; water - 16.5-16.7.
EFFECT: increased strength at compression and water tightness.
1 tbl, 1 ex
The invention relates to construction materials and can be used as a waterproofing composition is used in civil and industrial construction.
Known mortar including cement, lime component, sand, water, as a lime component it contains Borovitsky sludge. (Patent RF №2095326; SV 28/00; 1997)
The disadvantage of this mortar is reduced compressive strength and low water resistance.
Known for building a solution containing a binder, mineral filler, soap and water, as a binder solution contains carboxylmethylcellulose, and as filler - dolomite dust (Ed. St-No. 547427; SV 25/08; publ. Bull. No. 7 - 25.02.77 year).
The disadvantage of this technical solution is reduced compressive strength and low water resistance.
Closest to the claimed mortar is a mortar containing cement, sand, additives and water, where the sand used in forming the metallurgical production waste (formathow) and as an additive - foaming additive "Queen" on the basis of sodium stearate C17H35COONa in the following ratio, wt.%:
| Cement | 24-28 |
| Formathow | 50-60 |
| Foaming additive |
| "Queen" - based stearate |
| sodium C17H35COONa | 8-10 |
| water | 8-6 |
(patent RF №2139841; SV 38/10, bull. No. 29, 20.10.99). The disadvantage of this technical solution is insufficient compressive strength and reduced vodonepronitsaemost.
The challenge which seeks the invention is to provide a construction of the solution for the manufacture of waterproofing composition having a higher strength in compression and high resistance.
This object is achieved in that the raw material mixture contains Portland cement, sand with a maximum size fractions 0,315 mm, a comprehensive Supplement consisting of superplasticizer Peramin-SRA no DIN 1045, the active component of which is a cycloaliphatic compound, cellulose ether with a viscosity of 1% solution at 20°C=7000 MPa/sec, expanding additives for cement Denka CSA and sodium fluoride in the following ratio, wt.%:
| superplasticizer Peramin-SRA | 17,65-18,65 |
| the cellulose ether with a viscosity |
| 1% solution at 20°C=7000 MPa/sec | 11,06-11,76 |
| expanding additive |
| for cement Denka CSA | 58,40-58,82 |
| sodium fluoride | 11,29-11,77 |
and further comprises a lime component, dolomitic limestone with a maximum size fractions 160 MK, in the following ratio of components, mortar, wt.%
| - Portland | 29,17-33,3 |
| - sand with a maximum size |
| faction 0,315 mm | 37,05-40,15 |
| dolomitic limestone |
| with a Max. size of FR. 160 MK | 11,7-12,5 |
| specified complex additive | of 1.45 to 1.48 |
| water is | 16,5-16,7 |
Use as a lime component (dolomitic limestone with a maximum size of FR. 160 MK), on the one hand, improves workability, increase the mobility of construction mortar, on the other hand, when combined with sand, characterized by the maximum size of FR. 0,315 mm ensures the formation of a mortar, which has extremely dense structure that has a positive impact on improving water resistance of mortar.
The use of an additive provides improved mobility construction mortar mixture under reduced value of water, which also has a positive effect on the formation of a relatively dense structure of the solution and, consequently, improving water resistance. The presence in the complex additive of sodium fluoride NaF increases hydration activity hardening cement-containing systems due to the catalytic action of sodium fluoride and displacement acid-base balance. The presence of the additive vysokovalentnogo cement facilitates intense binding of water in wet hydrated compounds, which excludes the occurrence of cracks of any nature on the surface of the hardened quickly the positive solution. Increase hydration activity hardening system provides increased formation of hydrated compounds not only aluminates and silicates of calcium, resulting in a seal structure of the hardened material and improving the strength of the mortar.
New is the new combination of known components used in the raw material mixtures, and their new proportion, which allows to obtain the above technical result.
According to the applicant, and authors, this mortar for waterproofing composition is unknown and it is possible to draw a conclusion about conformity of the invention patentability requirements of "novelty".
As stated set of essential features showing the new property, which allows to obtain the change of the quantitative outcome measures, and, namely, the increase of compressive strength and improving water resistance, it is possible to draw a conclusion about conformity of the invention the conditions of patentability "inventive step".
Getting the mortar and use it as a waterproofing material is carried out in industrial conditions in the following sequence:
Specific example:
I. Preparation of complex additives
I.1. Blocks measure (weigh):
a) superplasticity the R Peramin-SRA no DIN 1045, the active component of which is a cycloaliphatic compound sulfonate melamine (www.welcomsplus.ru).
b) a cellulose ether with a viscosity of 1% solution at 20°C=7000 MPa/sec(methylhydroxyethylcellulose).
C) expanding additive for cement Denka CSA (MSDS No. 5365), consists of 30%SEO·3l2O3·SiO2, 50% SO4and 20% Cao (www.spsss.ru),
g) sodium Fluoride.
1.2. Occasioanly components of the transport screw in a forced action mixer and thoroughly mixed for 10 minutes.
1.3. The finished product, a comprehensive Supplement store in an upright cone-shaped containers.
II. Preparation of mortar:
2.1. Dispense the components of the mortar:
a) Portland cement (M400),
b) calcareous component (dolomitic limestone with a maximum size fractions 160 MK),
b) sand with a maximum size fractions 0,315 mm
g) a comprehensive Supplement
d) water.
2.2. Occasioanly materials transported in the mixer auger periodic action.
2.3. Preparation of building mortar is carried out by thoroughly mixing all occasioanly components for 30 minutes.
2.4. Finished building the mortar mixture used as a waterproofing material for simple and complex surfaces of any nature (ethnoi, brick, metal).
To determine the physical and mechanical characteristics of the obtained solution for the above parameters are preparing standard samples, which are stored in normal conditions and in the project age is 28 days produce the required tests. The results presented in the table. Physical and mechanical tests were carried out according to GOST 10180-90, GOST 12730.5-84.
Data analysis the table shows that featured in this invention the dry mixture for mortar provides increase the compressive strength by 29% and increased vodopronitsaemosti or 50%.
Mortar, comprising Portland cement, sand, additives and water, characterized in that it contains sand with a maximum size fractions 0,315 mm, complex chemical compounds, consisting of superplasticizer Peramin-SRA, cellulose ether with a viscosity of 1% solution at 20°C 7000 MPa/s, expanding additives Denka CSA and sodium fluoride, in the following ratio, wt.%:
| superplasticizer Peramin-SRA | 17,65-18,65 |
| the cellulose ether with a viscosity |
| 1% solution at 20°C 7000 MPa/s | 11,06-11,76 |
| expanding additive |
| Denka CSA | 58,40-58,82 |
| sodium fluoride | 11,29 - 11,77 |
and additionally contains dolomitic limestone with a maximum size fractions 160 MK in the following ratio of components, mortar, wt.%:
| Portland | 29,17-33,3 |
| sand with a maximum size |
| faction 0,315 mm | 37,05-40,15 |
| dolomitic limestone |
| with a maximum size fractions 160 MK | 11,7-12,5 |
| specified complex additive | of 1.45 to 1.48 |
| water | 16,5-16,7 |