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333 results about "Water damage" patented technology
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Water damage describes various possible losses caused by water intruding where it will enable attack of a material or system by destructive processes such as rotting of wood, growth, rusting of steel, de-laminating of materials such as plywood, and many others.
Water-reactive asphalt cold patch, preparation method therefor and use method thereof
Disclosed in the present invention are a water-reactive asphalt cold patch, a preparation method therefor and a use method thereof. The water-reactive asphalt cold patch of the present invention comprises the following components in parts by mass: 1000 parts of aggregates; 50-60 parts of mineral powder, 85-150 parts of emulsified asphalt, 15-30 parts of a demulsifier, and 1-10 parts of a super absorbent resin. The preparation method for the water-reactive asphalt cold patch of the present invention comprises the following steps: 1) adding aggregates to a mixing vessel and mixing uniformly; 2) adding emulsified asphalt to the mixing vessel and mixing uniformly; 3) adding mineral powder and a demulsifier to the mixing vessel and mixing uniformly; and 4) adding a super absorbent resin to the mixing vessel and mixing uniformly. The water-reactive asphalt cold patch of the present invention has the advantages of simple storage, convenient construction, rapid early strength development, good adhesion to the original pavement, strong resistance to water damage, and eco-friendliness, and is suitable for large-scale popularization and application.
Owner:SOUTH CHINA UNIV OF TECH
Road repair state monitoring method and system based on edge calculation
ActiveCN120804632AResource allocationSubsonic/sonic/ultrasonic wave measurementTime domainEvaluation result
The invention relates to the technical field of road repair state monitoring, in particular to a road repair state monitoring method and system based on edge calculation. The method comprises the following steps: acquiring planning information of a repaired road, deploying 3D laser scanning vibration meters at a plurality of repairing points, collecting pavement vibration signals in different time periods, and performing disordered distribution time domain feature analysis to obtain a vibration signal disordered distribution time domain graph; then, structure weakening behavior simulation is carried out based on the graph, periodic structure weakening data is quantified, and a pavement water damage cumulative gradient is obtained through water damage cumulative gradient estimation; and finally, in combination with the periodic structure weakening data and the water damage cumulative gradient, carrying out service life evaluation on the restoration state, and sending an evaluation result to the terminal. According to the invention, the road repair state monitoring technology is optimized, so that the road repair state monitoring technology is more perfect.
Owner:SICHUAN TECH & BUSINESS COLLEGE
Vacuum for use with modular storage system
A vacuum that couples to storage units is provided. The vacuum includes a motor, an internal compartment, and an inlet and outlet that provide fluid communication between the internal compartment and an exterior of the vacuum. The vacuum includes one or more mechanisms to protect internal components from water damage and to prevent debris from escaping the internal compartment when the vacuum is being transported.
Owner:MILWAUKEE ELECTRIC TOOL CORP
Water-activated cold patch asphalt, water-activated cold patch asphalt mixture and preparation method of water-activated cold patch asphalt mixture
ActiveCN119613982AImprove water damage resistancehigh strengthBuilding insulationsPondingPolymer science
The invention discloses water-activated cold patch asphalt, a water-activated cold patch asphalt mixture and a preparation method of the water-activated cold patch asphalt mixture. The asphalt comprises the following components in parts by weight: 100 parts of matrix asphalt, 20-30 parts of a bio-oil diluent, 30-45 parts of a polyurethane prepolymer and 1-5 parts of a dewatering agent. The polyurethane prepolymer comprises a main body polyurethane prepolymer and an organic silicon modified polyurethane prepolymer, and the organic silicon modified polyurethane prepolymer accounts for 20 to 30 weight percent of the main body polyurethane prepolymer. The organic silicon modified polyurethane prepolymer is prepared by carrying out hydrosilylation reaction on a polyurethane prepolymer containing a carbon-carbon double bond and a siloxane compound containing a silicon hydrogen group in a mass ratio of (15-25): 1. The cold patch asphalt mixture disclosed by the invention has excellent water damage resistance, and has relatively strong adaptability to severe environments such as rain, snow and accumulated water.
Owner:ORDOS LUTAI NEW MATERIALS TECHNOLOGY DEVELOPMENT CO LTD +1
Solid-waste-based cold-mixed asphalt mixture for preventive maintenance as well as preparation method and application of solid-waste-based cold-mixed asphalt mixture
The invention discloses a solid waste-based cold-mixed asphalt mixture for preventive maintenance as well as a preparation method and application thereof, and belongs to the technical field of road engineering. The solid waste-based cold-mixed asphalt mixture is prepared from the following components in percentage by mass: 4.7 to 8.6 percent of modified cold-mixed asphalt adhesive, 85.8 to 93.9 percent of aggregate and 1.4 to 5.6 percent of composite filler, the modified cold-mixed asphalt adhesive is prepared from the following components in parts by weight: 86 to 96 parts of emulsified asphalt, 1 to 5 parts of bisphenol A type waterborne epoxy resin emulsion, 0.05 to 1 part of curing agent, 0.01 to 0.05 part of defoaming agent, 1.5 to 8 parts of waterborne polyurethane emulsion and 1 to 3 parts of hydroxypropyl methyl cellulose. The solid-waste-based cold-mixed asphalt mixture prepared by the method shows excellent comprehensive performance in high-temperature rut resistance, water damage resistance, freeze-thaw resistance, skid resistance, volume stability, interlayer shear resistance and the like, promotes reasonable utilization of solid waste resources, and has good economic and environmental benefits.
Owner:CHANGAN UNIV
Plant fiber asphalt mixed material as well as preparation method and application thereof
The invention provides a plant fiber asphalt mixed material as well as a preparation method and application thereof, and belongs to the technical field of composite asphalt. Performance optimization is achieved through a specific fiber-reinforced asphalt mixture scheme, the asphalt mixture comprises pretreated natural plant fibers, asphalt, coarse materials, fine materials and mineral powder, after mixing, the high-temperature stability, the water damage performance and the fatigue performance of the asphalt can be remarkably improved, the balance of cost and performance is achieved, and the service life of the asphalt is prolonged. And the defect that the cost of the conventional high-performance pavement material is often too high is overcome. The problems of high-temperature stability, water damage performance, fatigue performance, cost and performance balance and the like of a traditional asphalt pavement material are effectively solved, and the comprehensive performance of the pavement material is remarkably improved.
Owner:SHANGHAI KAIDA HIGHWAY ENGINEERING CO LTD +2
Road water damage disaster rapid identification method and system based on remote sensing image analysis
The invention discloses a road flood damage disaster rapid identification method and system based on remote sensing image analysis, and belongs to the technical field of remote sensing image analysis and disaster detection, and the method comprises the steps: extracting a change region of a pre-disaster and post-disaster remote sensing image through a multi-scale differential twin network change detection module; identifying five water destruction types, namely roadbed washout, pavement collapse, side slope collapse, retaining wall collapse and bridge and culvert damage, through the cascade attention water destruction semantic segmentation network; a multi-dimensional damage degree collaborative evaluation module is used for fusing form, spectrum and spatial characteristics to calculate a damage degree grade; according to the method and the system, rapid identification, accurate classification and comprehensive evaluation of highway flood damage disasters are realized, and technical support is provided for decision-making of after-disaster rescue and maintenance.
Owner:YULIN HIGHWAY BUREAU
Systems and Methods for Automatically Mitigating Risk of Water Damage
Methods and systems for automatically mitigating risks of water damage to a property caused by insurance-related events are provided. A smart home controller and / or insurance provider remote processor may analyze data received from a smart device disposed on, within, or proximate to a property associated with monitoring water flow, as well as data received from an insurance provider. If it is determined that an actual or potential risk of water leakage exists, the smart home controller or remote processor may automatically issue commands to the smart device to take actions that mitigate the risk of water damage. The smart home controller may transmit information about the actual or potential water leakage risks and any mitigative actions to an insurance provider. The insurance provider remote processor may interpret the transmitted data and perform insurance activities, such as providing a discount or premium, and / or adjusting an insurance policy associated with the property.
Owner:STATE FARM MUTAL AUTOMOBILE INSURANCE COMPANY
Asphalt stirring device based on road and bridge pothole filling
PendingCN120719589AHollow article cleaningBridge erection/assemblyCeramic coatingProcess engineering
The invention belongs to the technical field of asphalt stirring, and discloses an asphalt stirring device based on road and bridge pothole filling, the asphalt stirring device comprises a base, a stirring and scraping mechanism is arranged above the base, the stirring and scraping mechanism comprises a mixing tank, asphalt is fully stirred through the stirring and scraping mechanism, and through a sleeve in the stirring and scraping mechanism, the stirring and scraping mechanism is driven to rotate; according to the double-shaft driving design of the rotating pipe, an efficient and synergistic stirring and scraping system is constructed, the inclined face of an arc-shaped scraping plate is attached to the inner wall of the mixing tank and matched with a wear-resistant ceramic coating, adhered asphalt is scraped in real time in the rotating process, meanwhile, the rotating pipe synchronously rotates, radial stirring is achieved through external stirring blades of the rotating pipe, and a spiral lifting piece pushes bottom asphalt to axially flow; by matching with the turbulent flow effect of the U-shaped heat conduction pipe, the asphalt forms a three-dimensional flow field in the tank, an auxiliary agent and the asphalt are fully fused, the problem of non-uniform mixing caused by traditional single-dimension stirring is solved, the stable performance of the asphalt is guaranteed, and a basic support is provided for crack resistance and water damage resistance after pavement filling.
Owner:广东长大道路养护有限公司 +1
A composite modified asphalt and preparation method thereof
The invention provides a composite modified asphalt and a preparation method thereof, belonging to the technical field of polymer materials, wherein the composite modified asphalt contains SBS modified asphalt, modified tire rubber powder, epoxy asphalt, SBR, high modulus anti-rutting agent, asphalt warm mix agent, maleic acid resin, rubber softening oil, ethylhexyl stearate, isopropyl stearate, etc.; SBS modified asphalt is modified by AH-110 asphalt, AH-90 asphalt and AH-70 asphalt through SBS modifier, and calcium stearate, isopropyl stearate, asphalt warm mix agent, etc. are also added; modified tire rubber powder is obtained by using waste tire rubber powder as raw material, and surface composite coating modification is performed by basalt fiber, silica ash and AH-130 asphalt powder. Various components are melted and prepared by blending, and the composite modified asphalt has good high temperature stability, low temperature crack resistance, fatigue resistance and water damage resistance, and better adapts to the use environment of viaducts.
Owner:SHANDONG SHITONG HIGHWAY CONSTR CO LTD +1
Subway tunnel water disaster risk evaluation method under extreme rainfall based on multi-source data
The invention provides a subway tunnel water disaster risk evaluation method under extreme rainfall based on multi-source data, and belongs to the technical field of urban rail transit disaster prevention. The method comprises the following steps: establishing a grading evaluation system on the basis of field rainstorm monitoring data, hydrogeological parameters, field geological exploration, rock-soil physical and mechanical parameters, monitoring data of a tunnel lining structure and material strength parameters of a tunnel site area in combination with a plurality of developed tests, dividing corresponding grades and determining an influence index-; and S4, respectively carrying out weight calculation on the influence index-by adopting an analytic hierarchy process and an entropy weight method, then calculating a dynamic weight of the influence index-, correcting an abnormal dynamic weight, generating a comprehensive score, dividing risk grades, matching graded prevention and control measures, and optimizing and adjusting the prevention and control measures in real time through a parameter risk grade dynamic judgment and construction method matching mechanism. According to the method, minute-level accurate interpretation of a disaster evolution mechanism and dynamic optimization adaptation of a prevention and control scheme are realized.
Owner:JINAN RAILWAY TRANSPORT GRP CO LTD +1
Method and system for checking pre-flood hidden dangers and evaluating water damage risk of medium and small span bridges
ActiveCN119558661Acompact structureImprove applicabilityData processing applicationsClimate change adaptationBridge engineeringFlood flow
The invention relates to the technical field of bridge engineering detection and evaluation, in particular to a method and a system for checking pre-flood hidden dangers and evaluating flood damage risks of medium and small span bridges. According to the flood flow and the bridge inundation event information, obtaining a risk scoring result and a risk grade condition of bridge inundation; bridge structure instability information is collected to establish a bridge structure parameter analysis model, and then a risk scoring result and a risk grade condition of bridge superstructure deviation and bridge superstructure overturning are obtained; acquiring a bridge abutment collapse information set to obtain a risk scoring result and a risk grade condition of bridge abutment collapse and bridgehead panning events; and analyzing risk scoring results and risk grade conditions of bridge submerging, bridge superstructure deviation, bridge superstructure overturning, bridge abutment collapse and bridgehead washing events, and realizing hidden danger investigation and flood risk evaluation before medium-small-diameter cross flood through a systematic evaluation method.
Owner:RES INST OF HIGHWAY MINIST OF TRANSPORT
Rapid erection device and construction method for bridge flood damage beam and slab
Owner:ROAD & BRIDGE INT CO LTD +1
Preparation method of cold-mixed full-steel-slag asphalt mixture
The invention relates to the technical field of asphalt mixtures, and discloses a preparation method of a cold-mixed full-steel-slag asphalt mixture, which comprises the following preparation steps: 1) adding coarse steel slag and fine steel slag into an asphalt stirring pot according to parts by mass, and stirring to form mixed steel slag; 2) stirring and mixing the modified steel slag powder, polydimethylsiloxane, fly ash, hydrogen peroxide and the mixed steel slag in parts by mass to form a first part of mixture, and taking out the first part of mixture for later use; (3) stirring the emulsified asphalt, the water-borne epoxy resin, the water-borne curing agent and the defoaming agent in parts by mass to form a secondary mixture; 4) stirring and mixing the first part of mixture and the second part of mixture, then adding the modified steel slag powder, and stirring and mixing to form a cold-mixed full-steel-slag asphalt mixture; through specific preparation steps and material proportioning, the performance of the cold-mixed full-steel-slag asphalt mixture is comprehensively optimized, and the construction workability, durability, fatigue resistance and water damage resistance are improved.
Owner:SHENZHEN MUNICIPAL ENG CORP +1
Gradient pore structure geopolymer asphalt mixture warm mixing agent and preparation method thereof
PendingCN119330623Aincrease water capacityImprove the moisture release cycleCeramicwarePolymer scienceSODIUM SILICATE SOLN
The invention discloses a gradient pore structure geopolymer asphalt mixture warm mixing agent which is composed of the following components in parts by weight: 65-85 parts of regenerated micro powder, 15-35 parts of rice hull ash, 15-20 parts of a sodium silicate solution, 5-10 parts of sodium hydroxide and 10-20 parts of deionized water. The invention also discloses a preparation method of the geopolymer asphalt mixture warm mixing agent. The geopolymer asphalt mixture warm-mixing agent has a gradient pore structure and has no closed pores or semi-closed pores, so that the water carrying capacity in the geopolymer asphalt mixture warm-mixing agent can be greatly improved, and the pore structure is arranged in a gradient manner (gradually released from large pores to small pores), so that the water release period of the warm-mixing agent can be effectively prolonged, and meanwhile, the water release rate can be uniform; compared with a hot-mixed asphalt mixture, the geopolymer asphalt warm-mixing agent with the gradient pore structure has the advantages that the mixing temperature of the asphalt mixture can be remarkably reduced, and meanwhile, the high and low temperature performance, the water damage resistance and the fatigue resistance of the asphalt mixture can be improved.
Owner:YANGZHOU UNIV
High-strength composite modified emulsified asphalt material as well as preparation method and application thereof
PendingCN119592087AHigh compressive strengthIncreased shear strengthIn situ pavingsPaving detailsEpoxyCompressive resistance
The invention relates to the technical field of road materials, in particular to a high-strength composite modified emulsified asphalt material as well as a preparation method and application thereof. According to the high-strength composite modified emulsified asphalt material provided by the invention, a three-dimensional cross-linked network is formed through the cross-linking reaction of the waterborne epoxy resin and the emulsified asphalt, and the addition of the alkaline silica sol further refines the particles of the emulsified asphalt, enhances the interaction among the particles and consolidates the strength of an asphalt matrix; therefore, the emulsified asphalt has remarkable binding power and stability, and shows higher compressive strength and shear strength after being cured. Meanwhile, the micro porosity of the emulsified asphalt is optimized, the permeability of moisture is reduced, the waterproof performance is enhanced, the high temperature resistance and low temperature resistance are improved, and when the emulsified asphalt is applied to a micro-surfacing mixture, the shear strength, durability, binding force with aggregate and water damage resistance of the micro-surfacing mixture are remarkably improved.
Owner:KZJ NEW MATERIALS GROUP CO LTD
Fluid-state curing regenerated mixture, preparation method and application of fluid-state curing regenerated mixture in rapid repair of highway subgrade water damage
The invention discloses a fluid-state curing regenerated mixture, a preparation method and application of the fluid-state curing regenerated mixture in rapid repair of highway subgrade water damage, and relates to the technical field of building materials, the fluid-state curing regenerated mixture comprises the following raw materials by weight: 12%-20% of a cementing material, 20%-40% of redundant soil, and 40%-60% of graded aggregate; the preparation method comprises the following steps: firstly, carrying out processes of sorting, impurity removal, crushing, screening and the like on the building solid wastes to respectively obtain graded aggregates and redundant soil with different particle sizes; then blending the crushed graded aggregate and redundant soil according to a proportion, and carrying out primary mixing to obtain a mixture; and finally, blending the mixture with a cementing material in proportion, adding water, and carrying out secondary mixing, so as to obtain the flow-state cured regenerated mixture. According to the flow-state curing regenerated mixture, building solid waste is used as regenerated aggregate, waste concrete, tiles and the like are converted into high-performance engineering materials through scientific proportioning and a curing process, and the resource utilization rate of the building waste is maximized.
Owner:BEIJING URBAN CONSTR HUASHENG TRANSPORTATION CONSTR CO LTD
Road surface water damage and anti-permeability performance simulation test device
ActiveCN119595484AHigh precisionImprove permeabilityPermeability/surface area analysisInvestigating abrasion/wear resistanceStructural engineeringRoad surface
The invention discloses a pavement water damage and anti-permeability performance simulation test device, and belongs to the field of pavement performance test. A pavement water damage and anti-permeability performance simulation test device comprises a test board, the top of the test board is fixedly connected with a mounting rack, the top of the test board is provided with a liquid collecting tank, the test device further comprises a reciprocating screw rod, the reciprocating screw rod is rotatably connected between the inner walls of the two sides of the mounting rack, and the reciprocating screw rod is sleeved with a moving plate in a threaded mode. The top of the moving plate and the bottom of the mounting frame slide in an attached mode, the bottom of the moving plate is provided with a rolling part and a spraying assembly, the rolling part is used for conducting pressure simulation on the road surface, and the spraying assembly is arranged on the mounting frame and used for conducting a water flow scouring simulation test on the road surface; through the arrangement of the rolling roller, the vibration plate, the water spraying box and other structures, rolling, water spraying and vibration effects are generated on the surface of the pavement sample, so that the real pavement condition is simulated, and the accuracy of the test result is improved.
Owner:SICHUAN VOCATIONAL & TECHN COLLEGE OF COMM
Polymer asphalt emulsion as well as raw material composition, preparation method and application thereof
The invention discloses a polymer asphalt emulsion as well as a raw material composition, a preparation method and application thereof, and the raw material composition comprises the following components in parts by weight: 20-100 parts of asphalt, 30-110 parts of polymerizable monomer, 0.1-1 part of carboxyl monomer, 0.1-2 parts of crosslinking monomer, 0.1-2 parts of functional monomer, 0.2-0.7 part of initiator, 1.5-4.5 parts of surfactant, 1-6 parts of pH value regulator and 60-80 parts of water. The polymer asphalt emulsion prepared by the invention is a cationic emulsion, is applied to a cold-mixed and cold-laid asphalt mixture, and is relatively long in mixing construction time, relatively good in cohesive force and relatively strong in water damage resistance.
Owner:SHANGHAI BAOLIJIA NEW MATERIAL CO LTD
Water-damage-resistant high-performance asphalt mixture doped with fibers and preparation method of water-damage-resistant high-performance asphalt mixture
The invention relates to the field of preparation of asphalt mixtures for road engineering, and discloses a water-damage-resistant high-performance asphalt mixture doped with fibers and a preparation method of the water-damage-resistant high-performance asphalt mixture. The asphalt mixture provided by the invention is a water-damage-resistant fiber-doped high-performance asphalt mixture, and the asphalt consumption and the void ratio of the asphalt mixture are in the optimal proportion; particularly, the asphalt mixture interacts with aggregate with set gradation, and basalt and polyacrylonitrile fiber are mixed for use, so that the bonding effect between the aggregate and asphalt is better, the overall compactness and water stability of the asphalt mixture are further improved, and meanwhile, other comprehensive pavement performance of the asphalt mixture is also improved; and the asphalt pavement has high-temperature stability, low-temperature bending resistance, durability and anti-skid safety, so that the traffic capacity and the service life of the asphalt pavement are enhanced, and the asphalt pavement can have good pavement performance in different water environments.
Owner:CHINA RAILWAY 16TH BUREAU GRP ROAD & BRIDGE ENG CO LTD +2
Composite modified asphalt and preparation method thereof
ActiveCN119242063AImprove high temperature stabilityGood low temperature crack resistanceBuilding insulationsStearic acidBasalt fiber
The invention provides composite modified asphalt and a preparation method thereof, and belongs to the technical field of high polymer materials, the composite modified asphalt contains SBS modified asphalt, modified tire rubber powder, epoxy asphalt, SBR, a high-modulus anti-rut agent, an asphalt warm mixing agent, maleic resin, rubber softening oil, ethylhexyl stearate, isopropyl stearate and the like; aH-110 asphalt, AH-90 asphalt and AH-70 asphalt are modified through an SBS modifier, and calcium stearate, isopropyl stearate, an asphalt warm mixing agent and the like are added; the modified tire rubber powder is obtained by adopting waste tire rubber powder as a raw material and carrying out surface composite coating modification on basalt fiber, silica fume and AH-130 asphalt powder. The composite modified asphalt prepared by melting and blending the components has good high-temperature stability, low-temperature crack resistance, fatigue resistance and water damage resistance, and can better adapt to the use environment of the viaduct.
Owner:SHANDONG SHITONG HIGHWAY CONSTR CO LTD +1
High-performance cold patch asphalt mixture production system
ActiveCN222332407UTaking into account early strengthEnsure the mixing processRoads maintainenceProcess engineeringIndustrial engineering
The utility model discloses a high-performance cold patch asphalt mixture production system. The system is characterized by comprising an asphalt discharging pool, an asphalt tank, an asphalt metering device, a diluent tank, a diluent metering device, an additive tank, an additive metering device, a mixing reaction kettle, a cold supplementing liquid finished product tank, a cold supplementing liquid metering tank, a new aggregate discharging device, a new aggregate heating roller, a new aggregate weighing device, a new aggregate elevator, an RAP discharging device and an RAP heating roller, the system comprises an RAP weighing device, an RAP elevator, a powder storage device, a powder metering device, a primary stirring device, a cooling system, a secondary stirring device and an automatic packaging line. The production system combines the production advantages of the hot mix asphalt mixture and the cold patch asphalt mixture, the produced high-performance cold patch asphalt mixture is good in construction workability, small in diluent dosage, high in early strength, strong in water damage resistance, long in durability and low in production cost, and the production method is simple, mastered, low-carbon, environment-friendly and suitable for industrial production. The method is suitable for the high-performance cold patch asphalt mixture produced from brand new materials, and is also suitable for the high-performance cold patch asphalt mixture produced from all-old asphalt pavement milling materials.
Owner:JIANGSU JUDENG CONSTR ENG CO LTD
Asphalt recycling agent suitable for hot-mixed recycled asphalt mixture and preparation method of asphalt recycling agent
InactiveCN119463508AImprove plasticityImprove toughnessBuilding insulationsPlasticizerThermal stability
The invention relates to the technical field of recycling of asphalt pavement waste materials, in particular to an asphalt regenerant suitable for a hot-mixed recycled asphalt mixture and a preparation method of the asphalt regenerant. Wherein the mineral oil softens the aged asphalt, supplements lost light components in the aged asphalt and disperses other materials, and plays a continuous regeneration role in the regenerated asphalt mixture; the plasticizer improves the plasticity of the regenerated asphalt, so that the regenerated asphalt has better toughness, mechanical properties and impact resistance, and other materials are further dispersed under the synergistic effect of the plasticizer and the mineral oil; the anti-aging agent enhances the aging resistance and thermal stability of the recycled asphalt, and reduces the possibility of secondary aging of the recycled asphalt; the surfactant improves the interface state between the new asphalt and the old asphalt in the regenerated asphalt mixture, enhances the permeability of the regenerant and promotes mutual fusion of the new asphalt and the old asphalt; and the anti-stripping agent enhances the adhesion performance between the recycled asphalt and the aggregate, so that the recycled asphalt mixture has good thermal aging resistance and water damage resistance.
Owner:DALIAN UNIV OF TECH
Processing technology of high-durability colored asphalt concrete
The invention discloses a processing technology of high-durability colored asphalt concrete, belongs to the technical field of asphalt concrete, and aims to solve the technical problem that the color stability, rut resistance, water damage resistance and other properties of colored asphalt concrete in the prior art need to be further improved. The preparation method comprises the following steps: adding emulsified colored asphalt and a curing agent into a stirrer, stirring and mixing, adding coarse aggregate, fine aggregate and an auxiliary additive into the stirrer, raising the temperature of the stirrer to 90-100 DEG C, and stirring and mixing for 40-50 minutes to obtain the colored asphalt concrete. The emulsified colored asphalt is mixed with the filler, so that the stability of the colored asphalt concrete is effectively improved, and the color durability and stability of the colored asphalt concrete are also improved.
Owner:FUBON CHEMICALS (YIXING) CO LTD
Modified polyarylester fiber asphalt mixture and preparation method thereof
The invention discloses a modified polyarylester fiber asphalt mixture and a preparation method thereof. The preparation method comprises the following steps: (1) pretreating fibers; (2) preparing a silane coupling agent; (3) treating the fibers with a coupling agent; (4) weighing and chopping the modified fibers; (5) aggregate and fiber dry mixing; and (6) preparing the asphalt mixture. According to the invention, the surface of the polyarylester fiber is treated by using a detergent, a previous oiling agent is removed, and then the fiber is treated by using a silane coupling agent, so that the surface activity of the fiber is improved, and the compatibility of the polyarylester fiber as a fiber stabilizer in an asphalt mixture is improved; the polyarylester short fiber asphalt mixture is prepared by controlling the length of the polyarylester short fibers and the mixing amount of the polyarylester short fibers in the matrix asphalt and combining a manufacturing process of firstly dry mixing, then wet mixing and adding the short fibers for multiple times, and the defects of insufficient rutting resistance and poor water damage resistance of a traditional asphalt mixture are overcome.
Owner:NINGBO HIGLAR NEW MATERIAL TECH CO LTD
Water damage resistant asphalt modifier, preparation method therefor and use thereof
The present invention relates to the technical field of road building materials. Disclosed are a water damage resistant asphalt modifier, a preparation method therefor and a use thereof. The method for preparing the water damage resistant asphalt modifier comprises the following steps: S1: performing pulverization treatment on a decommissioned wind power blade and then performing sieving to obtain decommissioned wind power blade powder; S2, mixing the decommissioned wind power blade powder in step S1 with a silane coupling agent hydrolysis solution, and then drying to obtain siliconized decommissioned wind power blade powder; and S3, mixing the siliconized decommissioned wind power blade powder in step S2 with an elastomer, and then performing melt blending, crushing and sieving to obtain the water damage resistant asphalt modifier. The water damage resistant asphalt modifier is used for preparing modified asphalt and a modified asphalt mixture, and the working performance and the road performance of the modified asphalt and the modified asphalt mixture are significantly improved.
Owner:GUO NENG UNITED POWER TECHNOLOGY BAODING CO LTD
Adjustable multi-layer co-mining equipment and method for coal bed gas mining
PendingCN119288396Aavoid wastingextend your lifeFluid removalProcess engineeringCoalbed methane extraction
The invention relates to the technical field of coal bed gas exploitation equipment, in particular to adjustable multi-layer co-exploitation equipment and method for coal bed gas exploitation, and aims to solve the problem that blockage removal and maintenance are needed frequently in the prior art. Comprising an installation base plate anchored to the ground, a well casing pipe used for being inserted into a mine is arranged on the installation base plate, a sealing cover is arranged at the upper end of the well casing pipe in a matched mode, a gas production pipe used for conveying natural gas is arranged at the upper end of the sealing cover, and a plugging component used for plugging multiple gas layers is arranged on the well casing pipe. The device is designed according to existing needs, the problem that underground water is pumped out by constructing a negative pressure structure, a pump body is damaged by impurities in the water is solved, the service life of the device is effectively prolonged, in addition, underground water can be filtered, coal in the underground water can be rapidly recycled, resource waste is avoided, and the device is worthy of popularization and application. And hole cleaning operation can be automatically completed while coal materials are recycled and filtered, continuous work of equipment is guaranteed, and the use efficiency is guaranteed.
Owner:HUNAN UNIV OF SCI & TECH
Visual observation test system for eroding road asphalt material in dynamic water pressure environment
The invention provides a visual observation test system for eroding a road asphalt material in a dynamic water pressure environment, and relates to the technical field of road engineering monitoring. The system comprises a dynamic water pressure environment bin, a transparent closed observation bin, a transparent storage rack and a pipeline connecting piece, a water outlet of the dynamic water pressure environment bin is connected with a water inlet of the transparent closed observation bin through the pipeline connecting piece, the transparent storage rack is arranged in the transparent closed observation bin, and a sample is placed on the storage rack; high-precision cameras are arranged on the top and the side faces of the transparent closed observation bin, a temperature sensor, a water pressure sensor and an exhaust valve are arranged on the top, and bulbs are arranged around the transparent closed observation bin. The system breaks through the limitation that in the prior art, a dynamic water pressure environment can only be simulated and generated in a closed container invisible to naked eyes, and the material degradation process is not clear, and comprehensive revelation of the water damage evolution law and the damage mechanism of gradual collapse of the road asphalt material is achieved. And a foundation is laid for long-life design and toughness improvement of the multi-physics coupling asphalt pavement.
Owner:UNIV OF SCI & TECH BEIJING
Anti-rutting asphalt mixture, preparation method and application of anti-rutting asphalt mixture in micro-surfacing construction of single lane of expressway
The invention discloses an anti-rutting asphalt mixture, a preparation method and application of the anti-rutting asphalt mixture in expressway single-lane micro-surfacing construction, and belongs to the technical field of asphalt concrete.The mixture comprises aggregate, inorganic filler, modified asphalt, epoxy resin and an epoxy resin curing agent. The modified asphalt is prepared by mixing and processing coal tar, petroleum asphalt, a solubilizer, rubber powder, a thermoplastic elastomer, an organosilicon compound and sulfur powder. Compared with the prior art, the dynamic stability of the mixture under the high-temperature condition is remarkably improved, track deformation generated by vehicle running can be effectively resisted, the service life of a pavement is prolonged, and the maintenance cost is reduced. Meanwhile, the splitting strength ratio of the mixture under the freezing and thawing cycle condition is greatly improved, excellent water damage resistance is shown, and the stability and durability of the pavement in a humid environment are ensured.
Owner:BEIJING AOK REAL DETECTION TECH DEVCO +2
Composite fiber modified asphalt mixture and preparation method thereof
The invention relates to the technical field of road engineering materials, and particularly discloses a composite fiber modified asphalt mixture and a preparation method thereof. The composite fiber modified asphalt mixture comprises the following raw materials: asphalt, composite fibers, aggregate and mineral powder, wherein the composite fibers comprise aramid fibers and alkali-treated bamboo fibers. According to the composite fiber modified asphalt mixture provided by the invention, the aramid fibers and the alkali-treated bamboo fibers are synergistically compounded, so that the high-temperature stability, the low-temperature crack resistance, the water damage resistance and other properties of the asphalt mixture are comprehensively improved.
Owner:GAODE HIGHWAY CONSTR (DEZHOU) CO LTD +1