Soil mix for road construction |
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IPC classes for russian patent Soil mix for road construction (RU 2519283):
 Geoweb stacker with equipment for geoweb storage and straightening at stacking / 2505640
Improved geoweb stacker is suggested with equipment for geoweb storage and straightening that includes in-frame rotary drum designed for winding, storage and removal of geoweb braid consisting of in series geoweb modules of preset size; the drum is matched to actuator providing regulation of uniform winding and/or removal of geoweb braid along the drum axis, means for geoweb braid movement along the guide from the drum; at least two cross-beams providing geoweb straightening; the cross-beams can be moved apart in order to form a set vale of angle between them; they are connected to lashing facilities designed to hold geoweb edges in process of its straightening between the above cross-beams.
Method for stabilisation of soil or foundation / 2503768
Method consists in treatment of the latter by a stabiliser containing latex polymer, which is applied mixed with water. Treatment of soil or foundation is carried out by introduction of the stabiliser by means of a cutter by the cutting method as the stabiliser is mixed with ground or foundation. The latex polymer is represented by latexes from the group that includes sterol-butadiene latex, (meth)acrylate latex, ethylene-vinyl acetate latex, ethylene/propylene latex, ethylene/propylene-dimer latex, butadiene-acrylonitrile latex, silicon latex, polybutadiene latex, latex from natural rubber or mixture of two or several of the specified latexes. The stabiliser additionally comprises a thickener based on cellulose, a defoaming agent selected from the group including silicons, glycol ethers, natural fats or oils and fatty alcohols, and also at least one chloride or at least one hydroxide of alkaline or earth metal, besides, the stabiliser has the following composition (wt %); 0.1 - 50 latex polymer, 0.05 - 5 thickener, up to 5 defoaming agent, 0.01 - 10 chloride or hydroxide of alkaline or earth metal, residue to 100 - water.
 Method to construct motor roads and motor road design / 2492290
Method to construct motor roads includes erection of trenches and water drainage devices, preparation of a soil earth bed, erection of an underlying layer and a road surface, at the same time the main layer is arranged between the underlying layer and the road surface, and the soil earth bed is prepared by its levelling with coating by a binding additive and its further rolling, and if there is no soil earth bed, it is previously formed by means of application of a mixture of sand, ash slags and/or wastes of coal production, water and a binding additive, and the underlying layer is formed from a mixture of cement, sand, filler of fine fraction or clay or fine gravel, or wastes of heat power plants, water, binding additive, which is laid, levelled and compacted, then the binding additive is either sprayed or sprinkled, with further compaction of needle rollers to density of at least 1600 kg/m3, and the main layer of the road surface is formed from natural gravel, sand and/or sand clays, stabilisers in the form of cement, and/or lime, and/or bitumen, and/or asphalt concrete and binding additive. Also motor road design is described.
 Adhesive film for road surface, road surfacing method using said film and method of producing said adhesive film / 2446053
Invention relates to an adhesive film for road surface. The adhesive film contains a carrier substrate which is a polymer film, a surface layer on the substrate surface made from a polymer film and a layer of pressure-sensitive hot-melt adhesive. The polymer film is based on polyvinyl chloride, polyamide, acrylic resins, high-density polyethylene, polypropylene and polyethylene vinyl acetate. The surface layer contains resinous non-asphalt material or material which contains about 50% or more resinous non-asphalt component and about 50% or less asphalt component. The surface layer can form a bond with the adjoining layer of asphalt road material when the surface layer is heated to about 120°C or higher at pressure which is applied to the material of the adhesive film on the side of superimposed layer of asphalt road material. The layer of asphalt road material has thickness of about 3.8 cm or more. The surface layer is not adhesive at temperature of about 20°C and pressure of about 1 atm. The adhesive film for road surface can be used particularly for repairing old road surfaces without tack coat.
 Stabiliser or recycler / 2431011
Invention refers to stabiliser or recycler consisting of case 8 of rotor wherein there is installed mill-nixing rotor 9 and unit 13 for unloading of binding for stabilisation of soil or material of foundation. According to the invention at least part of delivery reservoir 14 for binding in a building machine and particularly a part with larger volume is positioned behind the mill-mixing rotor 9 in the direction of a working pass. Centre A of gravity of delivery reservoir 14 is preferably located behind axis 10 of rotation of mill-mixing rotor 9 in the direction of working pass. The given special procedure facilitates optimal distribution of weight with the described arrangement of the delivery reservoir. Also, delivery reservoir 14, of relatively big weight when filled with binding, is located in essence behind mill-mixing rotor 9. Driven unit 12 of the building machine can be positioned in front of the mill-mixing rotor. At the above described arrangement of the delivery reservoir and the driven unit between front and back wheels 3, 4 gravity centre of the building machine is located in a region of mill-mixing rotor 9 which is partially a purpose pursued in practice.
 Arrangement of mixed bases and surfaces by method of wedging / 2407848
Arrangement of mixed bases and surfaces by method of wedging includes preparation of road bed with removal of surface layer of earth, arrangement of additional and upper layers of base with usage of crushed stone fractions of various size, methods of moistening and compaction. At the same time surface layer of earth is removed to depth of at least 300-500 mm below frost zone, additional layer is arranged by scattering of clay of natural humidity onto road bed with a layer of 150-200 mm, distribution of unwedging crushed stone with fraction of 70-120 mm on clay with at least double repetition of materials scattering and with layer unwedging and compaction so that compacted mass does not have any cavities, and upper layers of base are arranged by layer scattering of crushed stone with fraction of 50...70 mm and thickness of 150-170 mm, fraction of 20-40 mm with thickness of 70-100 mm, and also crushed stone siftings mixed in mixer with clay ground into powder at the ratio of 100-200 kg of dry clay per 1000 kg of siftings with further turning of all layers of upper base by knives of device for mixing of base composition, arranged in the form of frame, where serial sections are mounted with a row of knives, and knives of one section relative to another are arranged in staggered order, with further spillage with water in amount of 30…40 l/m2 and subsequent compaction, wedging crushed stone elements to form cavity-free monolith.
 Method for forecasting of condition of motor roads with asphalt coats and assignment of justified timings of repair works / 2405882
Thermal properties of asphalt coat are determined, namely, specific heat capacity Ch, free energy increment δF, coefficient of free energy deficit kdef, besides, initial value is value of specific heat capacity of asphalt coat in the beginning of operation, and change of this value is monitored in process of operation, curves of specific heat capacity and increment of free energy dependence on time are periodically built, starting from initial values with account of reference points, at the same time free energy deficit increment is determined, using the following formula:
 Structure and construction method of motor roads / 2365700
Invention relates to civil engineering field and can be used while arrangement of structure of motor roads. Road structure contains geotextile fabric 1, road bed 2, road metal layer 3, clutches of geotextile 4, layer of asphaltic macadam 5, herewith geotextile fabric envelopes road bed 2 and road metal layer 3 by closed shell. It provides ability at compaction to densify layers of road metal and road bed. In proposed structure geotextile fabric 1 can be laid by individual road beds connected by lockers 4, furthermore, for durability increasing of joining lockers are broached by studs, and for roads of high wigth it is provided application of geotextile with anchor clamps and absence of shell made of geotextile in the basis of roads. Stud from one side allows flat head thrusting into asphalt concrete, and from the other side pointed head, which broaches locker and is kept by projection up to falling-out before laying of asphalt concrete. Construction method of road structure consists in that on prepared by height marks section it is laid geotextile two-three times (depending on height of road bed) exceeding width of road bed, then it is constructed road bed, it is laid road metal layer and projecting edges of geotextile on each side of road is wrapped over road metal, it is connected into locker, saturated by bitumen or other binder and over it is laid asphalt concrete. While wrapping of geotextile sides it is simultaneously wrapped geotextile by butts of road, forming from it closed shell. In case of need, into lockers there are installed studs and applied geotextile fabric with anchor clamps for saving of geotextile in the basis of road.
Strengthening method of road pavement / 2365698
Invention relates to door-repair work and can be used at strengthening of road pavement of non-rigid type. Strengthening method of road pavement by method of cold regeneration, consisting in milling of existing coating, introduction into grinned material of additives, mixing of components, distribution and compaction of mixture and laying of trailing layer. Milling is implemented with providing of 3-5% dual-slope cross slope of bottom of regenerated layer by means of installation of ends of rotor for different depth of tillage.
Strengthening method of road pavement / 2365698
Invention relates to door-repair work and can be used at strengthening of road pavement of non-rigid type. Strengthening method of road pavement by method of cold regeneration, consisting in milling of existing coating, introduction into grinned material of additives, mixing of components, distribution and compaction of mixture and laying of trailing layer. Milling is implemented with providing of 3-5% dual-slope cross slope of bottom of regenerated layer by means of installation of ends of rotor for different depth of tillage.
Structure and construction method of motor roads / 2365700
Invention relates to civil engineering field and can be used while arrangement of structure of motor roads. Road structure contains geotextile fabric 1, road bed 2, road metal layer 3, clutches of geotextile 4, layer of asphaltic macadam 5, herewith geotextile fabric envelopes road bed 2 and road metal layer 3 by closed shell. It provides ability at compaction to densify layers of road metal and road bed. In proposed structure geotextile fabric 1 can be laid by individual road beds connected by lockers 4, furthermore, for durability increasing of joining lockers are broached by studs, and for roads of high wigth it is provided application of geotextile with anchor clamps and absence of shell made of geotextile in the basis of roads. Stud from one side allows flat head thrusting into asphalt concrete, and from the other side pointed head, which broaches locker and is kept by projection up to falling-out before laying of asphalt concrete. Construction method of road structure consists in that on prepared by height marks section it is laid geotextile two-three times (depending on height of road bed) exceeding width of road bed, then it is constructed road bed, it is laid road metal layer and projecting edges of geotextile on each side of road is wrapped over road metal, it is connected into locker, saturated by bitumen or other binder and over it is laid asphalt concrete. While wrapping of geotextile sides it is simultaneously wrapped geotextile by butts of road, forming from it closed shell. In case of need, into lockers there are installed studs and applied geotextile fabric with anchor clamps for saving of geotextile in the basis of road.
Method for forecasting of condition of motor roads with asphalt coats and assignment of justified timings of repair works / 2405882
Thermal properties of asphalt coat are determined, namely, specific heat capacity Ch, free energy increment δF, coefficient of free energy deficit kdef, besides, initial value is value of specific heat capacity of asphalt coat in the beginning of operation, and change of this value is monitored in process of operation, curves of specific heat capacity and increment of free energy dependence on time are periodically built, starting from initial values with account of reference points, at the same time free energy deficit increment is determined, using the following formula:
Arrangement of mixed bases and surfaces by method of wedging / 2407848
Arrangement of mixed bases and surfaces by method of wedging includes preparation of road bed with removal of surface layer of earth, arrangement of additional and upper layers of base with usage of crushed stone fractions of various size, methods of moistening and compaction. At the same time surface layer of earth is removed to depth of at least 300-500 mm below frost zone, additional layer is arranged by scattering of clay of natural humidity onto road bed with a layer of 150-200 mm, distribution of unwedging crushed stone with fraction of 70-120 mm on clay with at least double repetition of materials scattering and with layer unwedging and compaction so that compacted mass does not have any cavities, and upper layers of base are arranged by layer scattering of crushed stone with fraction of 50...70 mm and thickness of 150-170 mm, fraction of 20-40 mm with thickness of 70-100 mm, and also crushed stone siftings mixed in mixer with clay ground into powder at the ratio of 100-200 kg of dry clay per 1000 kg of siftings with further turning of all layers of upper base by knives of device for mixing of base composition, arranged in the form of frame, where serial sections are mounted with a row of knives, and knives of one section relative to another are arranged in staggered order, with further spillage with water in amount of 30…40 l/m2 and subsequent compaction, wedging crushed stone elements to form cavity-free monolith.
Stabiliser or recycler / 2431011
Invention refers to stabiliser or recycler consisting of case 8 of rotor wherein there is installed mill-nixing rotor 9 and unit 13 for unloading of binding for stabilisation of soil or material of foundation. According to the invention at least part of delivery reservoir 14 for binding in a building machine and particularly a part with larger volume is positioned behind the mill-mixing rotor 9 in the direction of a working pass. Centre A of gravity of delivery reservoir 14 is preferably located behind axis 10 of rotation of mill-mixing rotor 9 in the direction of working pass. The given special procedure facilitates optimal distribution of weight with the described arrangement of the delivery reservoir. Also, delivery reservoir 14, of relatively big weight when filled with binding, is located in essence behind mill-mixing rotor 9. Driven unit 12 of the building machine can be positioned in front of the mill-mixing rotor. At the above described arrangement of the delivery reservoir and the driven unit between front and back wheels 3, 4 gravity centre of the building machine is located in a region of mill-mixing rotor 9 which is partially a purpose pursued in practice.
Adhesive film for road surface, road surfacing method using said film and method of producing said adhesive film / 2446053
Invention relates to an adhesive film for road surface. The adhesive film contains a carrier substrate which is a polymer film, a surface layer on the substrate surface made from a polymer film and a layer of pressure-sensitive hot-melt adhesive. The polymer film is based on polyvinyl chloride, polyamide, acrylic resins, high-density polyethylene, polypropylene and polyethylene vinyl acetate. The surface layer contains resinous non-asphalt material or material which contains about 50% or more resinous non-asphalt component and about 50% or less asphalt component. The surface layer can form a bond with the adjoining layer of asphalt road material when the surface layer is heated to about 120°C or higher at pressure which is applied to the material of the adhesive film on the side of superimposed layer of asphalt road material. The layer of asphalt road material has thickness of about 3.8 cm or more. The surface layer is not adhesive at temperature of about 20°C and pressure of about 1 atm. The adhesive film for road surface can be used particularly for repairing old road surfaces without tack coat.
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FIELD: construction. SUBSTANCE: soil mix for road construction comprises a mineral binder, a mineral filler, soil, water and a chemical additive - organosilicic fluid Silor at the following ratio of components, wt %: portland cement 6-12, soil 15.2-68.8, mineral filler 15.2-68.8, organosilicic fluid Silor 0.05-0.5, water 7.5-11.95. EFFECT: increased compression strength of materials in soil mixes up to twice, achievement of bending tensile strength limit and coefficient of frost resistance, growth of economic efficiency, specified by lower cement consumption, high durability of material, and accordingly increased overhaul life and service life of road surface. 1 tbl, 1 ex
The invention relates to road construction and can be used for construction of the base and covering roads. The most promising direction in solving the problem of lack of durable stone materials and the real possibility of reducing the cost of construction and cost of resources is the use of local fortified materials in road structures. Summarizing many years of domestic and international practical experience in the use of reinforced soil, it can be concluded that soil, fortified one binder, characterized by a large set of negative properties, particularly low water - and frost, significantly reducing the service life of the structural layer. An existing solution to the problem is possible by modifying cementownia different target additives. A known mixture of fortified soil containing mineral binder - cement, soil, water and chemical additive. As a chemical additive mixture contains calcium chloride (Bezruk V.M. Consolidation of soils and rock materials inorganic astringent. The materials of the V all-Union scientific-technical conference on fundamental problems of technical progress in road construction. M., 1971, p.35-49). The disadvantage of this composition is a low strength, deformat the main resistance and frost resistance of the material obtained. It is known the use of ground mixtures containing composition in addition to soil aggregate (expanded clay, expanded perlite, agloporit etc.) 10-40%, binder (cement) 6-9% chemical additives (liquid silicone NGL-94) 0.5 to 2% to create a road pavement (Methodical recommendations on the use of reinforced soil and waste industry in frost protect insulating layers of the road pavement. The Ministry of transport construction. GUDNI (soundarya), Moscow, 1979). The disadvantage of this design is that the introduction of NGL-94 and these placeholders in strengthening the soil does not improve strength, and increase only frost resistance, which limits the scope of reinforced soil only (frost protect) layers of Foundation or basis of the road surface transition type. The closest to the proposed invention to the technical essence and the achieved result is a mixture comprising a primer, inorganic binder is Portland cement, water and chemical additives - calcium chloride and distillation residues from the production of organosilicon compounds (SU 966151, 15.10.1982), wt.%: - ground - 73-79, cement - 8-9, - calcium chloride - 0,5-1, - distillation residues from the production of organosilicon compounds is 0.5 to 1, - water - the rest. Fault is m the mixture is too weak for use in the foundations, pavements capital type. The objective of the invention is to increase the compressive strength of the materials of the earth mixtures, as well as the economic efficiency of construction. The result is achieved that dirt mix for road construction, including mineral binding, chemical additive and soil, according to the invention contains as an additive liquid silicone "Silor and additionally mineral filler in the following ratio, wt.%: - Portland - 6-12, - ground - 15,2-68,8, placeholder - 15,2-68,8, liquid silicone "Sylar" - 0,05-0,5, - water - 7,5-11,95. The characteristics of the original materials: 1) Mineral binder is Portland cement 400 TO GOST 10178-85. 2) Chemical additive - liquid silicone "Sylar" THE 2229-052-05766764-2003. Liquid silicone "Silor receive chemical waste recycling silicone rubber compounds, sealants, compounds formed during the manufacture of rubber products based on silicone rubbers. 3) the Soil is clay and sand. For the manufacture of the samples used sandy loam silt and fine sand GOST 25100-95. 4) Aggregate (sand, gravel, rubble, waste canadaline, asphaltgranulate, fly ash and others). For the manufacture of the samples used natural sand and is of ESOC from the crushing GOST 8736-93. 5) Water according to GOST 23732-79. Preparation and methods of test sample suspected of soil mixtures for road construction. Soil mix for road construction, additionally containing mineral filler, prepared and tested as follows. The soil has dried to air-dry state. Sandy and clayey soils were sieved through a sieve with holes of 5 mm (clayey soils have previously razmelchite). Soil moisture was determined by drying sub-samples of soil in thermostat to a constant weight at a temperature of +105°C. Then made dried to air-dry state mineral aggregate (natural sand or sand from the crushing), improving grain (particle size distribution) the composition of the soil. The mixing of soil with these supplements made without wetting the soil. Then made a binder is Portland cement, the mixture was mixed. Received cementgroup the mixture is moistened (subject contained in the soil moisture) to the optimum moisture content with the simultaneous introduction of liquid silicone "Sylar". The mixture is then thoroughly mixed in a laboratory blade mixer for 4-6 minutes From the obtained mixtures were made on 12 samples-cylinder with a diameter of 5.0±0.5 cm by plugging in the device to the standard seal. The number of blows weights and the compaction of the mixture is the same as the ri compaction of soils. The fabricated samples were placed in executory over the water and kept so within 28 days for adequate testing to determine indicators of physico-mechanical properties of the reinforced soil. Before testing, the samples were saturated with water at a temperature of 18±2°C for 48 hours Initially, the samples were flooded with water about 1/3 of the height, and at 6 h and fully withstood 42 PM Limit of compressive strength and tensile splitting of the sample was determined on hydraulic presses. The working speed of the free stroke of 3 mm/min tensile strength calculated with an accuracy of 0.5 kgf/cm as the arithmetic average of the test results for the three samples. The discrepancy between the test results of individual samples should not exceed 15%. The ultimate tensile strength in bending was determined by recalculating the results of tests on the split. Testing of samples frost produced after curing for 28 days and the water saturation within 48 hours Each cycle of freezing-thawing consisted of the following operations: first, the samples were frozen in a freezer for 2.5 hours at a temperature of 18±2°C, then the samples were immersed in water for 2±0.5 h at a temperature of 18±2°C. After carrying out the prescribed number of cycles of freezing-thawing on the thawed samples were determined by the ultimate strength in compression. Example. In table 1 shows the physico-mechanical characteristics of the different formulations fortified Portland cement ground with the addition of liquid silicone "Sylar". Introduction as a chemical additive liquid silicone "Silor and mineral filler leads to the increase of compressive strength of up to 2 times, as well as to achieve the required regulatory documents of the ultimate tensile strength in bending and coefficient frost resistance, in some cases exceeds the performance of the prototype. For example, for options 5, 6, 9, 10, 13, 14 the coefficient frost resistance exceeded the figure of the prototype and amounted to 1.00; for options 3, 4, 5, 6, 9, 10, 11, 12, 13, 14 tensile strength tensile Flexural exceeded prototype to 1.5 times. Stable positive dynamics of all defined physico-mechanical characteristics of the obtained material gives a wide field of application in road construction. The growth of economic efficiency due to reduced cement consumption, high durability of the material, and consequently, increased turnaround time and service life of a pavement. Soil mix for road construction, including mineral binding, chemical additive and primer that distinguishes the I, that contains as an additive liquid silicone "Silor and additionally mineral filler in the following ratio, wt.%:
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