Road concrete mix making method. RU patent 2520256.
 Geopolymer composite binders with given properties for cement and concrete / 2517729Invention relates to geopolymer compositions. A dry mixture for a geopolymer binder contains at least one fly ash containing calcium oxide in amount of less than or equal to 15 wt %, at least one gel formation accelerator and at least one hardening accelerator having a composition different from that of said ash. Said dry mixture prepared by mixing with an activator. A geopolymer concrete or mortar composition obtained by mixing said binder with an aggregate. Methods of preparing a concrete or mortar composition using said binder. The invention is developed in subclaims. |
| Method to produce wood concrete products with making base for plastering on their surface / 2517308 In the method to manufacture wood concrete items with production of a base on their surface for plastering, providing for preparation and dosing of a hydraulic binder, ground cane stems, water, mixing of components, moulding of items with vibration, hardening, moulding with vibration is carried out so that cane stems cut into sections with length of 4-6 cm are located near the surface of the items, with one end staying in the mix, and with the other one - protruding outside and forming a base for application of plaster. |
| Method to manufacture non-autoclave concrete foam products / 2517291 Method to produce construction products from foam concrete includes separate preparation of foam and mortar mixture, their mixing or single-stage preparation of foam mass with subsequent laying into moulds, soaking, removal of formwork, steaming and removal of the product mould. At the same time after laying the foam concrete mass onto full volume into a stiff perforated mould it is closed with a cover, creating a closed volume, and connect to the AC network via plate electrodes arranged on two opposite sides of the mould. The mass is exposed to electric heating with current of industrial frequency 50 Hz with voltage of 50-80 V for 15-20 min. After electric treatment the product is maintained for 40-60 min to remove temperature stress and gain structural strength. Then formwork is removed. After this the product heated to 60°C on the tray arrives for further thermal treatment. |
 Photocatalytic composite materials, containing titanium and limestone free from titanium dioxide / 2516536Invention can be used in production of construction materials. Photocatalytic composite material practically free from titanium dioxide contains limestone in amount at least 0.05% by the weight of sodium and calcium titanate in crystalline phases CT2 and/or CT5, characterised by the following diffraction maximums: CT2: (002) d=4.959; (210-202) d=2.890; (013) d=2.762 and (310-122) d-2.138; CT5: (002) d=8.845; (023) d-4.217; (110) d=3.611 and (006) d=2.948. The empirical formula of calcium titanate in phase CT2 is CaTi2O5, and the empirical formula of calcium titanate in phase CT5 is CaTi5O11. |
| Method to prepare asphalt-concrete mixture / 2515652 In the method to prepare an asphalt-concrete mix by means of mixing of heated mineral components, bitumen and an additive with usage of oil sludge, the additive is a finely dispersed powder, produced intense mixing of a working agent with oil sludge at their ratio of 1.5:1 with addition of water for full lime slaking, treatment of produced product with carbonic acid gas for 10-15 minutes and soaking under tight conditions for 18-30 hr, where the working agent is produced by mixing, wt %: animal fat 1-3, adsorbent produced by pyrolysis of worn car tyres at 850-1100°C with subsequent separation of metal cord and grinding to 10-3÷10-5 m, 18-22, burnt lime ground to 10-3÷10-5 m, balance, with content of bitumen of 66-83% of the mass of the specified additive, mineral components are heated to 70-90°C, the mixture of bitumen with the specified additive - up to 90-100°C, and mixing of all these mixture components is carried out during heating of up to 140-170°C. |
 Method of nano-modified cement preparation and device to this end / 2515345Invention relates to production of construction materials, particularly, to production of high-strength plasticised cements and concrete and for recovery of the properties of cements that los their activity. Proposed method consists in combined grinding of initial cement with super plasticiser. Note here that, first, cement and super plasticiser are subjected to impact activation at aerodynamic device at acceleration of 35-40 g and frequency of 20000-25000 impact/second. Note also that amount of super plasticiser makes 10-15% of cement bulk. Then, produced nano-modifier in amount of 2-4% of cement bulk is mixed with initial cement in the sinter mixer. Invention covers the device to this end including activation chamber, mixing chamber loader ad unloaders. Note here that activation chamber features aerodynamic design while mixing chamber is equipped with the main and auxiliary sinter mixers. Loader-unloader inlet is connected with mixing chamber outlet is connected with activation chamber. |
| Production of all-purpose construction boards / 2511245 Invention relates to production of construction materials and can be used for production of boards for internal and external facing of whatever buildings, spandrel panels, stair boards and small architectural structures. Proposed method comprises mixing of magnesite binder, organic filler, mineral filler and aqueous solution of magnesium chloride, forming of the articles, their curing and drying. Mineral filler consists of two or more components one of which being a co-precipitated calcium-magnesium component and another one being the perlite. Aqueous solution of magnesium chloride is mixed with corrosion inhibitor before addition to the mix. Note here that ratio of components in common mix is as follows, in wt %: magnesite binder - 10-40, aqueous solution of magnesium chloride with density of 1.1-1.3 g/cm3 - 40-70, organic filler - 4-15, mineral filler - 2-20, and corrosion inhibitor - 0.015-0.025. Plasticiser can be added in amount of 0.01-0.50%, in terms of dry mass, of total weight. |
 Method of production of cellular concrete with closed pores (versions), device for making foam medium and mould for forming article to this end / 2510330Invention relates to construction, particularly to production of cellular concrete particles. Proposed method comprises separate preparation of mortar and water, making foam of surfactant and water, mixing said mortar with foam, foam making, moulding the mix in the mould and thermal processing of article. Mortar is made by mixing water and cement at the following ratio, in wt %: cement - 25.0-58.0, water - 43.0-29.0. Cement is added into vessel with water at constant mixing to obtain homogeneous mortar. At a time, foam-like medium is made by mixing anionic and/or nonionic surfactant in amount of 0.05-0.2% per 30.0-9.0% of water degassed by thermal treatment at 20-95°C. Mixing is conducted by rubber disc fitted on drive shaft at 1000-3000 rpm. Obtained foam-like medium is added to mortar and mixer by mixer composed by piston engaged with drive to reciprocate vertically to produce homogeneous mass. Said mass is poured into molds and solidified at 1-37°C. Now, semi-finished moulded article is withdrawn to be cured at ambient temperature to solid state. |
| Method for production of concrete mixture based on activated water of tempering / 2508273 Proposed is the method for production of concrete mixture by mixing of cement, mineral aggregates and tempering water activated by magnetic field or simultaneous combined impact of magnetic field and electric current. Tempering water is activated by magnetic field with intensity of 630÷640 kA/m with activation time of 0.9÷0.11 sec. When aggregates humidity is increased, activation time is increased to 0.16÷0.18 sec., or magnetic field intensity is increased to 660 kA/m, or both activation time and magnetic field intensity are increased considering maximum plastification of concrete mixture. When activation is performed by combined impact of magnetic field and electric current, electric current value is set as 0.18-0.2 A with increase to 0.5 or 20-25 A with increase to 250 A depending on the apparatus structure. |
| Method of producing heat insulating fireproof material / 2504529 Invention relates to production of building materials and can be used in making fireproof panels, partition walls, ceilings, doors and other structural components, used in construction of civil and industrial buildings in which fire and human safety is required. The method of producing heat insulating fireproof material involves mixing magnesia binder, filler and aqueous magnesium chloride solution, wherein the filler added to the magnesia binder is expanded vermiculite and optionally organic and/or mineral filler and mixing is carried out to obtain a homogeneous mixture of dry components, followed by mixing with aqueous magnesium chloride solution and optionally a plasticiser, moulding articles, drying and finish cutting, with the following ratio of components, wt %: magnesia binder 20-40, expanded vermiculite 1.5-15, aqueous magnesium chloride solution with density of 1.1-1.3 g/cm3 45-70, organic filler 0-18, mineral filler 0-6, plasticiser 0-0.5. |
| Asphalt-concrete mix / 2515840 Asphalt-concrete mix includes as a mineral material the crushed with fraction of 0-5 mm, and the binder is bitumen of grade BND 90/130, and the structuring additive is mechanically activated sapropel. The ratio of components is as follows, wt %: crushed limestone with fraction of 0-5 mm - 93, oil viscous bitumen - 6.3, mechanically activated sapropel - 0.7. |
| Method to prepare asphalt-concrete mixture / 2515652 In the method to prepare an asphalt-concrete mix by means of mixing of heated mineral components, bitumen and an additive with usage of oil sludge, the additive is a finely dispersed powder, produced intense mixing of a working agent with oil sludge at their ratio of 1.5:1 with addition of water for full lime slaking, treatment of produced product with carbonic acid gas for 10-15 minutes and soaking under tight conditions for 18-30 hr, where the working agent is produced by mixing, wt %: animal fat 1-3, adsorbent produced by pyrolysis of worn car tyres at 850-1100°C with subsequent separation of metal cord and grinding to 10-3÷10-5 m, 18-22, burnt lime ground to 10-3÷10-5 m, balance, with content of bitumen of 66-83% of the mass of the specified additive, mineral components are heated to 70-90°C, the mixture of bitumen with the specified additive - up to 90-100°C, and mixing of all these mixture components is carried out during heating of up to 140-170°C. |
| Mineral powder for asphalt concrete mixture / 2515277 Invention relates to road construction and particularly to production of mineral powder for an asphalt concrete mixture. The mineral powder for an asphalt-concrete mixture contains a surfactant, a water repellent agent and a mineral component, the mineral component being carbonate rock powder, the surfactant being a product of treating soap stock by acid-catalysed hydrolysis with an acid number of 100-140 units and the water repellent agent being heavy vacuum tar, with the following ratio of components, wt %: product of treating soap stock 0.7-1.8, heavy vacuum tar 1.0-1.6, mineral component - the balance. |
| Mineral powder / 2515274 Mineral powder for an asphalt concrete mixture, activated by grinding natural material, contains magnesium silicate rock - wehrlite - as the natural material, and grinding is carried out in a rod-shaped vibration apparatus for 13 minutes until achieving the following grain composition, wt %: smaller than 1.25 mm - 100; smaller than 0.315 mm - 94.2; smaller than 0.071 mm - 84.8. |
| Mineral powder / 2515239 Mineral powder for an asphalt concrete mixture, activated by grinding natural material, contains magnesium silicate rock - troctolite - as the natural material, and grinding is carried out in a rod-shaped vibration apparatus for 10 minutes until achieving the following grain composition, wt %: smaller than 1.25 mm - 100; smaller than 0.315 mm - 93.6; smaller than 0.071 mm - 82.2. |
| Method to strengthen asphalt road surface with carbon nanomaterial / 2515007 Method to strengthen an asphalt road surface with a carbon nanomaterial includes usage of an asphalt concrete mix containing crushed stone, crushed stone siftings, sand and oil bitumen of "БНД" 90/130 grade. Besides, the oil bitumen is modified by carbon nanotubes in the amount of 0.005% from the bitumen mass, and modification of the oil bitumen with carbon nanotubes is modified under ultrasonic effect. |
 Method and device for production of asphalt mixture / 2509838Method for production of an asphalt mix, in which the removed asphalt in the form of asphalt crumb and/or new material in the form of grain fillers together or separately are heated and dried in drum plants and then in the mixing plant mixed with bitumen, forming the asphalt mixture suitable for laying. Besides, mixing of heated and dried asphalt crumb and/or grain fillers is carried out in gaseous medium with low oxygen content, oxygen content in which makes maximum of 10%. Drying and heating of asphalt crumb and/or grain fillers is carried out in drum plants with the help of gases with low content of oxygen, which have temperature in the range from 500 to 1000°C, and then moved into the mixing plant. Moving and mixing is also carried out in gaseous medium with low content of oxygen, besides, cold gases are sent into the supply system and into the mixing plant with low oxygen content, which have temperature in the range from approximately 20 to 150°C, or cooled gases with low oxygen content, having temperature in the range from approximately 150 to 300°C, and bunkering of the heated and dried asphalt crumb and/or grainy fillers prior to mixing with bitumen and/or bunkering of finished asphalt mixture is also carried out in the gaseous medium with low oxygen content. Also the device is described for production of asphalt crumb. |
| Asphalt-concrete mixture based on modified bitumen / 2509065 Asphalt-concrete mixture which contains limestone chips with size of 0-5 mm and binder which is modified with a texturing additive, contains bitumen BND 90/130 as the binder, zeolite which is dried at 110°C and mechanically activated to specific surface area of 16.9 m2/g as the texturing additive, with the following ratio of components, wt %: said chips 93, said bitumen 6.3, said zeolite 0.7. |
| Asphalt concrete mixture / 2508261 Asphalt concrete mixture contains a mineral filler, which contains sand, and bitumen. The mixture further contains dust from gas cleaning of electric furnaces DSP-60 for the iron industry with grain size of less than 7·10-5 m, rock chips and crushed rock screenings, with the following ratio of components, wt %: rock chips - 40.5-45.5; sand - 29.0-30.0; crushed rock screenings - 15.0-18.5; BND 90/130 bitumen - 6.0-6.3; dust from gas cleaning of electric furnaces DSP-60 for the iron industry - 4.0-5.0. |
 Method of obtaining mineral powder for asphalt concrete mixture / 2506238Invention relates to field of road construction, namely to production of road construction materials, and can be applied in structure and repair of highways. Method of obtaining mineral powder for asphalt-concrete mixture lies in thermal processing of non-traditional raw material, representing polymineral alumosilicate rocks, at temperature 500-600°C, with further dispersion of obtained products in order to obtain fine-disperse filling materials. |
| Dry building mixture / 2520122 Dry building mixture for monolithic-type building construction, which includes Portland cement, alumina cement, hydrated lime, gypsum, quartz sand, filler, re-dispersed polymer, cellulose ester, antifoaming additive, superplasticising agent, hardening agent, retarding agent, contains bauxite cement as alumina cement, hemihydrate plaster as gypsum, quartz sand with fineness modulus of up to 1.2, filler with specific surface area S sp 2.5-2.8 cm2/g, which contains 5-7 wt % of nanoparticles, polycarboxylate superplasticising agent and in addition high-molecular chitosan at the following component ratio, wt %: Portland cement - 12-33, bauxite cement - 12-19, hydrated lime - 0.3-0.5, hemihydrate plaster - 2.5-6, quartz sand with fineness modulus of not more than 1.2 - 30-50, the above filler - 5-18, re-dispersed polymer - 4-6, cellulose ester - 0.1-0.17, antifoaming additive - 0.1-0.3, polycarboxylate superplasticising agent - 0.2-0.3, hardening agent - 0-0.5, retarding agent - 0-3.5, high-molecular chitosan (200-250 kDa) - 1-2 wt % of Portland cement weight. |
FIELD: construction.
SUBSTANCE: method for making road concrete mix by mixing heated mineral components, bitumen and an additive using oil sludge differs by the fact that as an additive there used is fine-grained powder obtained by intense mixing of the working agent with oil sludge at their ratio of 1.5:1 with addition of water for complete lime slaking, where the working agent is obtained by mixing of the following components, wt %: animal fat 1-3, adsorbent - thermally treated shells 18-22, unslacked lime ground to 10-3÷10-5 m is the rest at bitumen content of 67-84% of the weight of the above additive, mineral components are heated to 70-90°C, mixture of bitumen with the above additive is up to 90-100°C, and mixing of all mixture components is performed at heating of up to 140-170°C.
EFFECT: enlarging the range of road concrete mixes.
4 ex, 1 tbl
The invention relates to a process for preparation of asphalt concrete with the use product disposal of sludge chemically with the participation of calcium oxide and thermally processed rice husk as an additive.
One of the most urgent and large-scale problems related to the deterioration of environmental quality, is environmentally dangerous and not always organized waste management. Complex processing and use of waste as secondary raw materials ensure the preservation of natural resources, reduce environmental pollution, to make a profit.
Known asphalt concrete mixture, including oil-slime, minerals and bitumen (Turamuratov M.L., Bekbulatov SH the Use of oil sludge in road construction // the Bulletin of NEA RK, 2010, issue 1, s.138-151). Technology of utilization of oil sludge to activate the surface of grains mineral material (gravel and sand) is that oil sludge in the amount of 3% shall be put on the stone material, then the mixture shall be notified to the working and served mineral powder and bitumen. The disadvantage is the low strength of asphalt mix.
The method for preparation of road concrete mix by foaming oil sludge containing 8-10% of water, at a temperature of 80-95 C, mixing it with the pre-heated up to 150-160°With mineral component (macadam, sand) and supplements to this mixture is heated bitumen up to 140-150 C (Pat. The Russian Federation №2110496, MPK 6 C04B 26/26, 1998). The amount of sludge is 18-20% by weight from the mass of bitumen. The disadvantage of this method is low strength properties of asphalt concrete. In addition, dosing of oil (NSH) - waste hazard class 3 creates a hazardous working environment at the workplace during the unloading, storage and supply and blending.
The task of the invention - the assortment of asphalt mixes through the use of safe products, recycling of oil and gas complex for humans and the environment.
Effect: increase of durability of concrete mixes by introducing supplements - product utilization of oil sludge containing silicates and carbonates of calcium.
The task is solved by the fact that the asphalt mix is obtained by mixing hot mineral components, bitumen and additives using oil sludge. As additives are used to fine powder obtained by intensive mixing of working agent with the oil sludge at a ratio of 1.5:1 with the addition of water to the complete extinction of lime, where the worker agent is obtained by blending,% Mas.: animal fat 1-3, adsorbent - thermally processed rice husks 18-22, lime, crushed to 10 -3% to 10 -5 m, - the rest. Additive mixed with bitumen in the amount of 67-84% of the mass of the admixture and heated up to 90-100°C, mineral components - up to 70-90 C, mixing of all components of the mixture in the ratio of mineral components to a mixture of bitumen additive (1-0,94):(0,16-0,19) perform at heating up 140-170 C.
The technical result is achieved by ensuring that the composition of asphalt mixes enter Supplement - product utilization of oil sludge that contains animal fat and adsorbent - thermally processed rice husks. Components of additives, surfactants that are part of oil sludge, animal fat and are activators supplements, and silicates, formed by the interaction of calcium oxide with silicon oxide thermally processed rice husks.
The process is carried out by mixing hot mineral components, bitumen and additives using oil sludge. On the way to obtain additives obtained patent of the RF №2359982. As additives are used to fine powder obtained by intensive mixing of working agent with the oil sludge with the addition of water to the complete extinction of lime. Working substance produced by mixing of animal fat, adsorbent - thermally processed rice husks and ground quicklime. Separately heated mixture of bitumen with the additive and mineral components. Then when heated mix all the components of the mixture.
Example 1
Mix hot mineral components, bitumen and Supplement with the use of oil sludge. Supplement receive intensive mixing of working agent with the oil sludge at a ratio of 1.5:1 with the addition of water to the complete extinction of lime. Working substance produced by mixing,% Mas.: animal fat 1, adsorbent - thermally processed rice husks 18, lime, crushed to 10 -3 m, - the rest. Additive mixed with bitumen in the amount of 67% of the mass of the admixture and heated to 90 C. the Mineral components heated to 70 C. the Mixing of all components of the mixture in the ratio of mineral components to a mixture of bitumen with the addition of 1:0,16 perform at heating up to 140 C until then, until the mixture is smooth black. The prepared mixture in small portions lay, extruding metal shape of size 10 x 10 x 10 cm, and left to harden within a week. Form grease fat to facilitate the extraction of a sample of asphalt concrete.
Example 2
The method is realized as in example 1, getting a working substance mix,% Mas.: animal fat 2, adsorbent - thermally processed rice husks 19, lime, crushed to 10 -4 m, - the rest. Additive mixed with bitumen in the amount of 73% of the mass of the admixture and heated to 94 C. Mineral components heat up to 77 C. Mixing of all components of the mixture in the ratio of 0,99:0,17 perform at heating up to 150 C.
Example 3
The method is realized as in example 1, getting a working substance mix,% Mas.: animal fat 2,5, adsorbent - thermally processed rice husks 20, lime, crushed to 10 -4 m, and the rest. Additive mixed with bitumen in the amount of 79% of the mass of the admixture and heated to 97 C. Mineral components heated to 84 degrees C. Mixing of all components of the mixture in the ratio of 0.96:0,18 perform at heating up to 160 C.
Example 4
The method is realized as in example 1, getting a working substance mix,% Mas.: animal fat 3, adsorbent - thermally processed rice husks 22, lime, crushed to 10 -5 m, - the rest. Additive mixed with bitumen in the amount of 84% of the mass of the admixture and heated to 100 degrees C. Mineral components are heated up to 90 C. the Mixing of all components of the mixture in the ratio of 0.94:0,19 perform when heated to 170 C.
Tensile strength at compression of asphalt concrete with the use as additive product of oil sludge determine in accordance with GOST 8462-85 hydraulic press TYPE P-10 scale 10000 kg price of division 20 kgf and automatic machine P-6. The results of the samples asphalt №1-4 presented in table 1.
Table 1Characteristics of pilot samples of road concrete mix
Indicators of asphalt concrete
Sample number asphalt
Prototype
1 2 3 4Tensile strength at compression, R SG (50 degrees Celsius), MPa
1,32 1,21 1,22 1,17 1,15Product usage of oil sludge hazard class 4 as an additive, which is of secondary material resources, which are silicates and carbonates of calcium, increases the strength of road concrete mix and to reduce hazards in the workplace and increase of ecological safety of the environment.
Method of preparation asphalt mix by mixing hot mineral components, bitumen and additives using oil sludge, notable as an additive use fine powder obtained by intensive mixing of working agent with the oil sludge at a ratio of 1.5:1 with the addition of water to the complete extinction of lime, where the worker agent is obtained by blending,% Mas.: animal fat 1-3, adsorbent - thermally processed rice husks 18-22, lime, crushed to 10 -3% to 10 -5 m - other, with the content of bitumen 67-84% of the mass of the admixture, mineral components heated up to 70-90 C, bitumen with the specified addition to 90-100°C, and the mixing of all components of the mixture is carried out at heating up 140-170 C.