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266 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
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
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
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
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
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
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
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
A highly tough and recyclable epoxy plant-mixed hot recycled asphalt pavement material and its preparation method
The present invention discloses a highly tough and recyclable epoxy plant-mixed hot recycled asphalt pavement material and its preparation method, belonging to the technical field of asphalt pavement materials. The recycled asphalt pavement material comprises the following components in parts by weight: 100 parts of asphalt mixture waste, 1.2 - 2.4 parts of epoxy regenerant, and 0.4 - 1.2 parts of matrix asphalt; the epoxy regenerant comprises modified epoxy resin, toughened flexible curing agent and compatible regenerant; the modified epoxy resin is formed by mixing epoxy resin and active diluent; the preparation method of the toughened flexible curing agent is as follows: polyetheramines with different molecular weights are respectively reacted with the modified epoxy resin, and then the obtained products are mixed to obtain the toughened flexible curing agent. The recycled asphalt pavement material of the present invention has strong high-temperature rutting resistance, low-temperature deformation resistance and water damage resistance, and its various properties are far superior to those of newly mixed SBS modified asphalt mixture; most importantly, the recycled asphalt pavement material of the present invention can be recycled multiple times, and the properties of the mixture are still excellent after multiple recycling.
Owner:CCCC THIRD HARBOR ENGINEERING CO LTD
Graphene asphalt modifier based on micelle coating technology and preparation method thereof
The invention discloses a graphene asphalt modifier based on a micelle coating technology and a preparation method thereof, and belongs to the technical field of road materials. The modifier is prepared from reduced graphene oxide (rGO) serving as a core function phase, a micelle coating phase (compounded by polystyrene-polyoxyethylene block copolymer and ionic liquid) and an auxiliary modification phase (nano silicon dioxide and a silane coupling agent) according to the mass ratio of 10: (30-50): (5-10). The preparation method comprises the following steps: preparation and reduction of graphene oxide, preparation of an amphiphilic micelle solution, preparation of micelle-coated rGO composite particles and compounding of an auxiliary modified phase. The modifier can significantly improve the dispersibility and compatibility of graphene in asphalt, effectively prevent agglomeration, and synchronously improve the high and low temperature performance, aging resistance, water damage resistance and self-ice-melting performance of asphalt. The process is simple and convenient, is compatible with an existing asphalt production line, and is suitable for high-grade pavement engineering.
Owner:ZHONGRUN CHAOYOU (BEIJING) NEW MATERIALS CO LTD
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
Emulsified asphalt, emulsified asphalt cold-recycled mixture and preparation method of emulsified asphalt cold-recycled mixture
The invention provides emulsified asphalt, an emulsified asphalt cold recycled mixture and a preparation method thereof, and the emulsified asphalt comprises the following components in percentage by mass: 40%-55% of matrix asphalt, 5%-20% of a modifier, 10%-15% of an emulsifier and 25%-30% of water, the modifier is selected from any one of atactic polypropylene, terpene resin, epoxy resin, rubber resin and modified polyurethane prepolymer; the modified polyurethane prepolymer is obtained by modifying a polyurethane prepolymer through cashew nut shell liquid and vanillin. The cashew nut shell liquid and the vanillin are used for modifying the prepolymer, and a composite system with rigidity (benzene ring), flexibility (aliphatic chain) and a cross-linked network (polyurethane) is formed; the mechanical property, water damage resistance and the like of the prepared high-performance emulsified asphalt are greatly improved, the early-stage wear resistance, pavement performance and fatigue resistance of a cold recycled mixture can be remarkably improved, and the service life of a pavement is effectively prolonged.
Owner:ZHENJIANG SOBUTE NEW MATERIAL CO LTD +2
Asphalt mixture containing waste nickel slag powder
The invention discloses an asphalt mixture containing waste nickel slag powder. The asphalt mixture is prepared from the following components in parts by mass: 90 to 100 parts of aggregate, 4.0 to 4.5 parts of asphalt and 4.5 to 5.5 parts of filler, wherein the filler is limestone mineral powder doped with nickel slag powder; the nickel slag powder is prepared by adopting the following method: firstly, crushing a water-cooled nickel slag block, then carrying out multi-stage ball milling, and finally, screening and drying the nickel slag powder subjected to ball milling treatment to obtain the nickel slag powder. The asphalt mixture disclosed by the invention has good water damage resistance, high-temperature stability and ultraviolet aging resistance, and meanwhile, the preparation cost of the asphalt mixture can be greatly reduced.
Owner:YANGZHOU UNIV
High-viscosity recycled asphalt mortar based on rich-oil RAP fine material and preparation method thereof
The application discloses a high-viscosity recycled asphalt mortar based on oil-rich RAP fine materials and a preparation method thereof, and belongs to the technical field of highway engineering materials. The high-viscosity recycled asphalt mortar comprises the following components: oil-rich RAP fine materials, base asphalt, a high-viscosity modifier, a recycling agent and a dissolving agent. The high-viscosity modifier comprises the following components: waste tire rubber powder grafted with GMA (glycidyl methacrylate), BMI (bismaleimide), an adhesive, isooctanol polyoxyethylene ether and sulfur. The waste tire rubber powder grafted with GMA can improve the interfacial bonding strength of the oil-rich RAP fine materials and the base asphalt, thereby improving the water damage resistance of the recycled asphalt mixture. The BMI forms an interpenetrating structure (crosslinking network) among the rubber powder, the oil-rich RAP fine materials and the base asphalt, thereby improving the crack resistance of the recycled asphalt mixture.
Owner:HOHAI UNIV +1
Road water damage monitoring method, device, equipment and medium
The invention provides a road water damage monitoring method, device and equipment and a medium, and the method comprises the steps: obtaining the road section information of a target road, the road section information comprises the road attribute of a road section, the historical water damage information of the road section, and the position information of the road section; determining a geographical influence area range corresponding to each road section of the target road according to the position information of the road sections; acquiring grid weather data of at least one weather grid covered by each geographical influence area range in the target time period; and utilizing a trained road water damage monitoring model to obtain water damage risk monitoring information of the target road according to the grid weather data of each geographical influence area range, the road attributes of the road sections and the historical water damage information of the road sections. Therefore, the accuracy of the road water damage monitoring result is improved.
Owner:BEIJING WEIRAN HUIKE INFORMATION TECHNOLOGY CO LTD
Pile planting treatment structure for dam seepage damage
ActiveCN223753309UClimate change adaptationMarine site engineeringSoil scienceStructural engineering
The utility model relates to a dam seepage failure pile planting treatment structure which is used for blocking a seepage channel in a dam, the dam seepage failure pile planting treatment structure comprises a plurality of profile steel piles, a plurality of steel sheet piles, a coarse sand inverted filter layer and a rock ballast backfill body, the profile steel piles are arranged in the dam in the gravity direction, and the coarse sand inverted filter layer is arranged in the rock ballast backfill body. The multiple profile steel piles are arranged at intervals in the length direction of the dam; the steel sheet piles are arranged in the dam in the gravity direction, the steel sheet piles are located on the upstream sides of the profile steel piles and are close to the profile steel piles, the multiple steel sheet piles are sequentially arranged in the length direction of the dam and form a plugging face, and the plugging face can shield the cross section of the permeation channel; the coarse sand inverted filter layer and the rock ballast backfill body are located on the outlet side of the permeation channel and block the outlet of the permeation channel, and the coarse sand inverted filter layer and the rock ballast backfill body are laid in sequence after being locally excavated at the outlet of the permeation channel. The pile planting disposal structure for the dam seepage damage can avoid the shortage of lifting protection and reduce the water damage loss.
Owner:POWERCHINA HUADONG ENG CORP LTD
Low-noise water damage resistant asphalt mixture and preparation method thereof
The application discloses a kind of low-noise water disaster resistant asphalt mixture and preparation method thereof, it is related to bitumen technical field.The mixture is composed of modified basalt porous ceramic hybrid aggregate and self-repairing gel modified asphalt material composite;Among them, modified basalt porous ceramic hybrid aggregate is crushed after basalt ore, by the synergistic effect of foaming agent, cosolvent, in the vacuum gradient sintering, carbon dioxide is inhaled to optimize pore structure, then by pickling, plasma activation and polyurethane impregnation strengthen mixed aggregate and filler are prepared;Self-repairing gel modified asphalt is three (2-mercaptoethyl) cyanuric acid ester as precursor, by thiol-epoxy click chemistry reaction to form crosslinked gel network, then with matrix asphalt composite;The scheme is through the acoustic wave dissipation of porous ceramic, hydrophobic interface and the dynamic self-repairing synergistic effect of gel network, significantly improve the water disaster resistance and noise reduction performance of mixture.
Owner:朱荣飞
A rural highway pavement widening construction method in a rainy area
The present application relates to a kind of rural road pavement widening construction methods in rainy area, including the following steps, the material component, density and moisture content of widening section subgrade should be same with the material component, density and moisture content of old roadbed same level layer, the side middle part of old road cement concrete layer is drilled and planted with reinforcement with interval distance, adjacent planted reinforcement interval is 40-50cm, then a layer of SBS anti-cracking paste is uniformly arranged along joint;1-1.5cm thick rubber stress absorbing layer is spread on the upper end surface of new and old road cement concrete layer;With new asphalt, regenerating agent material, graded RAP material, aggregate and mineral powder are mixed in hot state, then asphalt concrete surface layer is paved on the upper end of rubber stress absorbing layer, and the thickness is 5-8cm.The present application prevents water damage caused by rain, delays damage at joint, reduces the probability of crack occurrence, and improves the service performance and durability of pavement.
Owner:NO 1 ENG CO LTD OF FHEC OF CCCC
Built-in dynamic water pressure environment eroded asphalt material observation test device and method
The invention provides a built-in dynamic water pressure environment eroded asphalt material observation test device and method, and relates to the technical field of road engineering monitoring tests. An observation bin component, a sample containing bin component and a background light source bin component in the device are arranged from top to bottom, the observation bin component is sealed and enclosed by a stainless steel container B and a transparent quartz round cover B, and a miniature high-definition camera, an LED lamp strip and a mobile power supply are arranged in the observation bin component; the background light source bin component is sealed and enclosed by a stainless steel container A and a transparent quartz round cover A, and an LED background light source is arranged in the background light source bin component; the observation bin component and the background light source bin component are fixed through a screw and a supporting sleeve, and a space formed between the observation bin component and the background light source bin component is a sample containing bin component and is completely exposed in a dynamic water pressure environment. The device can be used for quickly and effectively observing and quantitatively analyzing the evolutionary law of the surface topography characteristics of the asphalt material by means of illumination and image acquisition, comprehensively reveals a water damage mechanism, and lays a foundation for long-life design and toughness improvement of a multi-physics coupling asphalt pavement.
Owner:UNIV OF SCI & TECH BEIJING
Failure protection energy management to prevent short circuits due to water damage in solid-state drives using a conductivity detector
PendingDE102025115302A8Carrier indicating/warning arrangementsHardware monitoringEnvironmental engineeringElectronic conductivity
Methods and devices are provided for detecting the presence of electrically conductive liquids in a data storage device, such as an M.2 solid-state drive (SSD), and for triggering a failsafe mode. In an illustrative example, the SSD includes a non-volatile memory array (NVM) and a data storage controller. A linear resistive strip or other resistance sensor is mounted next to the NVM array and the data storage controller. A conductivity detector uses the linear resistive strip to detect the presence of an electrically conductive liquid. In response to the detection of the electrically conductive liquid, a power management unit (PMU) activates a failsafe processing mode. In failsafe mode, power to the NVM array and the data storage controller is disabled to prevent corrosion and short circuits.A signal is also sent to a laptop or other host in which the SSD is installed to request that the laptop be shut down.
Owner:SANDISK TECHNOLOGIES LLC
Composite asphalt warm-mixing agent, preparation method and application and asphalt, asphalt mixture
The application discloses a composite asphalt warm-mixing agent, a preparation method and application thereof, and asphalt and asphalt mixture, wherein the warm-mixing agent comprises long-chain hydrocarbon compounds, amphoteric ionic surfactants, non-ionic surfactants and a catalyst; the long-chain hydrocarbon compounds comprise at least one of plant / animal wax, petroleum wax and synthetic wax; the amphoteric ionic surfactants have at least two hydrocarbon chains, one cation and one anion, and contain unsaturated double bonds in the chain segments; and the non-ionic surfactants are ethoxylated surfactants and / or hydroxylated surfactants. The unsaturated double bonds in the amphoteric ionic surfactants are added and polymerized with the long-chain hydrocarbon compounds, and then the non-ionic surfactants are compounded, so that a single-component composite warm-mixing agent with multiple properties is prepared for the first time, and the cohesive property of the asphalt can be effectively improved, and the high-temperature and low-temperature properties and water damage resistance of the asphalt and the mixture are significantly improved.
Owner:BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD
Damage prevention structure for intake system
PendingJP2025143852ACombustion-air/fuel-air treatmentMachines/enginesMarine engineeringMechanical engineering
To provide a water damage prevention structure for an air intake device that can prevent water from entering the intake port of an air intake duct both when a vehicle is moving forward and backward on a flooded road.SOLUTION: Surrounding walls 31A, 31B are provided at a front end of an intake duct 20 to surround an intake port 21 from below and from an outside in a vehicle width direction, and the surrounding walls 31A, 31B extend forward in a vehicle longitudinal direction further than the intake port 21, extend inward in the vehicle width direction further than a center C of the intake port 21, and extend upward in a vehicle vertical direction further than the center C of the intake port 21. A rear wall 32 is provided at the front end of the intake duct 20, which is in contact with a lower surface of the front end of the intake duct 20 and an outer surface of the front end of the intake duct 20 in the vehicle width direction, and extends in a vertical direction and outward in the vehicle width direction, and the surrounding walls 31A, 31B are continuous with a tip of the rear wall 32 in an extension direction, and extend forward from the tip of the rear wall 32 in the extension direction.SELECTED DRAWING: Figure 2
Owner:SUZUKI MOTOR CORP
Toughened composite modified discontinuous semi-open graded GATB-25 asphalt mixture and preparation method thereof
The invention provides a toughened composite modified discontinuous semi-open graded GATB-25 asphalt mixture, which is prepared from G type rubber and plastic composite modified asphalt and discontinuous semi-open graded GATB-25 aggregate, and the G type rubber and plastic composite modified asphalt uniformly wraps the discontinuous semi-open graded GATB-25 aggregate; the G-type rubber-plastic composite modified asphalt comprises asphalt, rubber powder and PE particles, the mass ratio of the rubber powder to the PE particles is 3: 1-5: 1, and the total mixing amount of the rubber powder and the PE particles is 18-22% of the weight of the asphalt; and the mass percentages of the discontinuous semi-open graded GATB-25 aggregate passing through a 9.5 mm sieve pore, a 4.75 mm sieve pore and a 2.36 mm sieve pore are respectively 20%-45%, 18%-26% and 14%-22%. The invention also provides a preparation method thereof. The toughened composite modified discontinuous semi-open graded GATB-25 asphalt mixture disclosed by the invention can be balanced in high and low temperature performance, and is excellent in fatigue resistance and strong in water damage resistance and shear resistance.
Owner:SHANGHAI MUNICIPAL PLANNING & DESIGN INST CO LTD +1