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187 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.
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
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
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
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
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
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
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
Preparation method of high-modulus asphalt mixture
The invention discloses a preparation method of a high-modulus asphalt mixture, and relates to the technical field of asphalt mixture preparation. The preparation method comprises the following steps: providing the asphalt, the coarse aggregate, the fine aggregate, the filler and the optional additive; mixing the coarse aggregate, the fine aggregate and the filler according to a preset proportion to form a mineral aggregate; the mineral aggregate and the heated asphalt are mixed at the set temperature, and the asphalt-aggregate ratio is controlled within the range of 3.5%-6.5%; and carrying out compaction molding on the mixed mixture to obtain the high-modulus asphalt mixture. By controlling the mineral aggregate gradation, the asphalt-aggregate ratio, the mixing temperature and the compaction process, the mixture has high dynamic stability, excellent water damage resistance and durability. The method is suitable for heavy traffic expressway pavements, the rutting resistance of the pavements is remarkably improved, and the service life of the pavements is remarkably prolonged.
Owner:GUANGDONG GAINTOP HIGHWAY ENG CONSTR GRP CO
A reinforcement slurry long-distance transportation transfer system and method
The present invention provides a long-distance transfer and transportation system and method for reinforcement slurry. The system comprises: a cement feeder connected to the cement feed ports of two slurry mixing barrels through a three-way distributor; a pumping equipment feed port connected to the discharge ports of the two slurry mixing barrels through a discharge tee; a grouting pump connected to the slurry mixing barrel; a main water supply pipeline connected to the water inlets of the two slurry mixing barrels; and a main slurry supply pipeline connected to the slurry inlets of the two slurry mixing barrels; a method comprising: alternately using the two slurry mixing barrels to prepare a mixed slurry; alternately transporting the prepared mixed slurry to the slurry mixing barrels; and utilizing the grouting pump to transport the reinforcement slurry to the grouting borehole. The system and method can effectively shorten the cement transportation time in the pipeline, reduce the probability of pipe blockage accidents, and effectively improve the efficiency of floor grouting reinforcement, which is of great significance for the management of water hazards in the floor of a coal mine working face.
Owner:SHAANXI SHANMEI CHENGHE MINING +3
RPC reinforcing agent, preparation method of RPC reinforcing agent, RPC reinforced asphalt mixture and preparation method of RPC reinforced asphalt mixture
The invention discloses an RPC reinforcing agent and a preparation method thereof, and an RPC reinforced asphalt mixture and a preparation method thereof, and belongs to the technical field of road engineering materials. According to the RPC reinforcing agent, regenerated PE-SBS-rubber powder serves as a ternary core component, a compatilizer, a filling agent, a flow aid and other auxiliaries are matched, a polymer alloy structure is formed, three-level products (RPC-I type, RPC-II type and RPC-III type) are divided according to traffic scenes, the specifications, functions and proportions of all the components are achieved, graded dynamic optimization of the asphalt mixture is achieved according to actual application environment conditions and design requirements, and the comprehensive performance of the asphalt mixture is improved. And multi-scale stress dispersion. The RPC enhanced asphalt mixture provided by the invention can realize the effects of high-temperature rut resistance, low-temperature crack resistance and water damage resistance, for example, the dynamic stability of an RPC-III type asphalt mixture at 60 DEG C reaches 14000 times / mm or above.
Owner:SHANDONG HUIDA NEW BUILDING MATERIALS CO LTD
Preparation method of dry-process SBS (styrene-butadiene-styrene) modified hot in-place recycling asphalt mixture
The invention discloses a preparation method of a dry-process SBS (styrene-butadiene-styrene) modified hot in-place recycling asphalt mixture, which comprises the following steps: firstly, weighing limestone with different particle sizes according to a ratio, preheating, heating limestone aggregate, SBS modified asphalt and a waste asphalt mixture, and uniformly mixing to obtain the dry-process SBS modified hot in-place recycling asphalt mixture. The preparation method comprises the following steps: adding a waste asphalt mixture into a stirring pot, adding the SBS modified asphalt and limestone powder into the stirring pot, stirring to obtain a new asphalt mixture, adding the waste asphalt mixture into the stirring pot, stirring, adding the SBS thermal regeneration composite modifier, stirring, adding the new asphalt mixture, and stirring to obtain the SBS modified in-situ thermal regeneration asphalt mixture. The SBS thermal regeneration composite modifier can supplement the degraded SBS component in the old asphalt mixture and restore the performance of old pavement aged asphalt, realizes comprehensive improvement of high and low temperature performance, water damage performance and fatigue cracking performance of the large-mixing-amount waste asphalt mixture by means of the quick-melting high-elasticity SBS component, is simple in addition mode, can be used for site construction, and has good application prospects. And the popularization value is very good.
Owner:GUANGXI NEW DEV TRANSPORT GRP CO LTD +1
Vehicle wetting detection device
To provide a vehicle wetting detection device capable of detecting wetting even in a short time.SOLUTION: A vehicle wetting detection device comprising: a measurement unit configured to measure a time from when a decrease rate of a temperature detected by a temperature sensor mounted on a vehicle becomes equal to or greater than a decrease threshold value to when an increase rate of the temperature becomes equal to or greater than an increase threshold value during traveling of the vehicle; and a detection unit configured to detect that the vehicle is wetted when the measured time is less than a predetermined time.SELECTED DRAWING: Figure 2
Owner:TOYOTA JIDOSHA KK
Multi-dimensional composite modified asphalt mixture and preparation method thereof
The invention relates to a multi-dimensional composite modified asphalt mixture and a preparation method thereof. The invention aims to solve the problems of insufficient high-temperature rut resistance, low-temperature crack resistance and water damage resistance and low resource utilization rate of the waste EVA modified asphalt mixture. Based on a multi-component synergistic system of waste EVA, n-HAP and nano SiC, a composite structure is constructed through a melt blending process. Wherein the EVA provides elastic toughening, the n-HAP strengthens interface bonding, and the SiC improves heat conduction and rigid support; silane coupling agent interface optimization is combined, and an elastic wrapping-nano filling-rigid framework multistage synergistic enhancement structure is formed. The high and low temperature performance, the water damage resistance and the durability of the asphalt mixture are obviously improved; resource consumption and carbon emission are reduced through resource utilization of waste EVA and synergistic application of an environment-friendly nano material; the preparation process is adaptive to conventional equipment, and low-cost and high-efficiency production is realized. The performance bottleneck of traditional modified asphalt is broken through, excellent pavement performance and green and low-carbon characteristics are achieved, and innovative material support is provided for sustainable road engineering.
Owner:NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER +1
Interlocking type large-particle-size cement macadam base asphalt pavement structure and construction method
The interlocking type large-particle-size cement macadam base asphalt pavement structure comprises a macadam base and an asphalt surface layer from bottom to top, and the macadam base is a double-layer cement stabilized macadam base and comprises a lower base body and an upper base body; the asphalt surface layer is a three-layer gradient pore asphalt surface layer and comprises a lower surface layer, a middle surface layer and an upper surface layer from bottom to top. The invention further discloses a construction method of the interlocking type large-particle-size cement macadam base asphalt road. The construction method comprises the steps that construction preparation is conducted; constructing a lower base layer; constructing an upper base layer; treating the surface of the upper base layer; constructing an interlayer bonding layer; and constructing an asphalt surface layer. The drainage performance, the rutting resistance and the durability of the asphalt pavement are improved through the structure optimization and interface strengthening technology, and the problems of reflection cracks, interlayer slippage and water damage of a traditional pavement are remarkably solved.
Owner:CHINA RAILWAY 11TH BUREAU GRP CORP LTD +2
High-density waterproof composite board
The utility model relates to the technical field of decorative boards, in particular to a high-density waterproof composite board which comprises a composite board body, the composite board body is composed of a hot melting coating film, a reinforcing board layer, a bonding layer A, a high-density board base layer, a bonding layer B and a PVC bottom base board, a hollow cavity is formed in the high-density board base layer, and a waterproof layer is arranged in the hollow cavity. The outer surface layer and the inner surface layer of the high-density board base layer are provided with a bonding layer A and a bonding layer B respectively, the bonding layer A and the bonding layer B are each composed of a polyvinyl alcohol environment-friendly adhesive layer and an aluminum alloy wire mesh layer, and the aluminum alloy wire mesh layer is arranged between the polyvinyl alcohol environment-friendly adhesive layers; a reinforcing plate layer is arranged on the outer surface layer of the bonding layer A, and a hot melting coating film is arranged on the outer surface layer of the reinforcing plate layer; according to the high-density composite board, the strength and the extrusion deformation resistance effect of the whole composite board are greatly improved, materials are saved, the manufacturing cost is low, the waterproof and anti-seepage effects are improved, and water damage is avoided.
Owner:SUZHOU PI MATERIAL RECYCLING ENVIRONMENTAL PROTECTION CO LTD
An outdoor unit for an air conditioner
ActiveCN224284809UReduce the temperatureavoid enteringLighting and heating apparatusAir conditioning systemsCold airElectrical control
This utility model relates to an outdoor unit of an air conditioner, including an outdoor unit body, an electrical control box, and a heat dissipation module. The outdoor unit body has a heat dissipation duct. The electrical control box is located inside the outdoor unit body and includes a housing, a refrigeration mechanism located inside the housing, and an electrical control main board located on the side wall inside the housing. The refrigeration mechanism has an air supply vent and a return air vent, and is used to deliver cold air from the air supply vent and recover hot air from the return air vent. The heat dissipation module is located on the outer surface of the side wall of the housing where the electrical control main board is located, and is situated on the heat dissipation duct. The outdoor unit of this utility model can achieve effective heat dissipation inside the electrical control box while ensuring the sealing of the power box, effectively preventing dust and water damage.
Owner:PANASONIC HOME APPLIANCES AIR CONDITIONING GUANGZHOU CO LTD
A cement-emulsified semi-flexible high-strength asphalt concrete micro-expansion agent and its preparation method
This invention discloses a cement-emulsified semi-flexible high-strength asphalt concrete micro-expansion agent and its preparation method. The micro-expansion agent prepared by this invention can effectively control the performance of asphalt and asphalt concrete. Component A can effectively control the ductility and viscosity of asphalt, which can be controlled between 200 and 1000 mm at 10℃, effectively improving the low-temperature crack resistance of asphalt concrete. It has good coating properties with coarse aggregate, with a coating area ≥ 4 / 5, and can significantly improve the water stability of cold recycled mixtures. Component B serves the purpose of micro-expansion, reducing the porosity of asphalt concrete. The porosity can be controlled within 8-13%, further improving the water damage resistance and strength of asphalt concrete. At the same time, component C can regulate the demulsification time of emulsified asphalt, and the demulsification rate can be controlled within 3-8 hours, fully meeting the requirements of mixing and construction.
Owner:HUNAN CITY UNIV
Modified asphalt and preparation method thereof
The invention relates to the technical field of road engineering materials, in particular to modified asphalt and a preparation method thereof. Comprising road asphalt, a geopolymer precursor solution, a star-shaped SBS modifier, epoxidized natural rubber, epoxidized soybean oil, a mercapto silane coupling agent, dibutyltin dilaurate, hydrogenated petroleum resin, nano organic montmorillonite, a wax regulator, a light stabilizer and an antioxidant. The geopolymer precursor solution, the epoxidized natural rubber and the epoxidized soybean oil are subjected to synergistic reaction under a mercaptosilane bridging system to construct a stable organic-inorganic hybrid interpenetrating network structure, so that the technical bottleneck of poor two-phase compatibility is effectively overcome; the modified asphalt has the advantages of excellent high-temperature stability, strong interface bonding force, excellent water damage resistance, good low-temperature toughness and good storage stability.
Owner:HANGZHOU XIANGAO ROAD & BRIDGE ENG