Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

2631 results about "Construction waste" patented technology

Construction waste consists of unwanted material produced directly or incidentally by the construction or industries. This includes building materials such as insulation, nails, electrical wiring, shingle, and roofing as well as waste originating from site preparation such as dredging materials, tree stumps, and rubble. Construction waste may contain lead, asbestos, or other hazardous substances.

Intelligent sorting and cyclic regeneration system for construction waste

The invention relates to the technical field of fault prediction, and discloses a construction waste intelligent sorting and cyclic regeneration system which comprises an acquisition subsystem used for installing sensor arrays on the working face of a crusher and the edge of a vibrating screen of a construction waste sorting device and acquiring a feature data set; the simulation subsystem is used for establishing a simulation model of the construction waste sorting device and generating a simulation data set; the actual measurement subsystem is used for collecting an actual measurement abrasion data set with labels under the actual construction waste sorting working condition; the training subsystem is used for inputting the simulation data set and the actually measured wear data set with the label into an adaptive domain adversarial neural network for training to obtain an equipment wear degree prediction model; and the output subsystem is used for identifying wear fault characteristics through the equipment wear degree prediction model and outputting a fault closed-loop response scheme, so that the feeding rate, the crushing rotating speed, the screening frequency and the screening amplitude of the sorting device are dynamically adjusted.
Owner:SHENZHEN LVJIAN NEW MATERIALS CO LTD

Intelligent process monitoring and feedback method and system for resourceful treatment of construction waste

The invention relates to the technical field of intelligent process monitoring, and discloses an intelligent process monitoring and feedback method and system for resourceful treatment of construction waste, and the method comprises the steps: carrying out the process parameter collection and standardization processing of a plurality of monitoring points of a construction waste treatment production line, and obtaining a preprocessing data set; constructing a graph data structure, calculating a correlation coefficient between nodes to determine a node connection relationship, and performing dynamic optimization through a capability awareness graph neural network to obtain a process data association graph; inputting the process data association graph into a process parameter association model for graph convolution operation and attention feature extraction to obtain a process parameter feature vector; the technological parameter feature vectors are input into a multi-constraint non-convex optimizer, combined optimization of the processing efficiency, the resource utilization rate and the product quality is calculated, and a technological parameter regulation and control strategy is obtained, intelligent technological monitoring of construction waste resourceful treatment is achieved, and the optimal control strategy under different working conditions is effectively integrated.
Owner:SHENZHEN LVJIAN NEW MATERIALS CO LTD

Real-time monitoring and optimizing method and system for resource utilization of construction waste

The invention relates to a real-time monitoring and optimizing method and system for resource utilization of construction waste. The method comprises the following steps: carrying out data acquisition on vibration frequencies, material images and weight data of a crusher, a screening machine and a sorting device through a multi-source sensor network to obtain an original parameter data set; performing feature extraction to obtain a standardized feature data set; establishing a crushing kinetic model, a screening efficiency model and a sorting process model, carrying out coupling through a material balance equation and an energy balance equation, and carrying out model parameter identification by adopting a least square method and a genetic algorithm to obtain a technological process mathematical model; inputting the current process parameter combination and the historical quality data into an epsilon-constraint optimizer to obtain a Pareto optimal solution of the resource conversion rate and the energy consumption; and calculating the control quantity of the execution mechanism through the model prediction controller, and generating an optimal process parameter combination. According to the implementation of the method, real-time optimization and adjustment of the process parameters for resource utilization of the construction wastes are realized.
Owner:SHENZHEN LVJIAN NEW MATERIALS CO LTD

Construction waste whole-process carbon accounting system and method for waste-free construction site

The invention provides a construction waste whole-process carbon accounting system and method for a waste-free construction site. According to the system, the LCA life cycle theory is used, three processes of source classification management of construction site construction waste, construction site classification transportation / in-site comprehensive utilization, out-site comprehensive utilization and life cycle disposal are respectively checked and managed, and whole-process low-carbon management of the construction site construction waste is achieved. The method is suitable for guiding construction of'waste-free construction sites' of constructional engineering, including accounting and statistics of carbon emission and carbon reduction and proposing of carbon reduction measures, and promotion of popularization and application of'waste-free construction sites' is facilitated. Whole-process low-carbon management of reduction and tail end emission reduction of a construction waste source and a construction process of a construction engineering construction site is enhanced, and green and low-carbon whole-process management of the construction site is realized.
Owner:WUHAN INST OF TECH

Cooperative scheduling method and system for material supply and resource recovery

The invention discloses a material supply and resource recovery collaborative scheduling method and system, and belongs to the technical field of logistics scheduling, and the method comprises the steps: obtaining a material supply instruction and a garbage recovery instruction, carrying out the image recognition of a building garbage picture, obtaining the garbage attribute, and generating a demand instruction library; the method comprises the following steps: establishing a feature knowledge base, setting a spatial clustering method, carrying out spatial clustering and time window screening, carrying out geographic coordinate analysis and time sequence sorting on material demand points and recovery points, generating an initial task pool, setting a loading matching method, and generating a material supply and recovery loading schematic diagram according to building material and garbage attributes; a circulation path is planned, a path planning method is set, an ant colony algorithm is used for initial path planning, a monitoring feedback method is set, data are returned in real time, the running state of the vehicle is monitored, and an alarm is given out immediately once abnormity is found; and the sorted and regenerated aggregate data is synchronized to a building material database, a resource feedback method is set, a reverse transportation task is identified, and a material supply and resource recovery closed loop is formed.
Owner:GUANGXI QINGHAN ENVIRONMENTAL TECHNOLOGY CO LTD +1

Solid-waste-based fluid-state solidified soil and preparation method thereof

The invention provides solid-waste-based fluid-state solidified soil and a preparation method of the solid-waste-based fluid-state solidified soil. The solid waste-based flow state solidified soil comprises a filling material, a framework material and a reinforcing material, the filling material comprises the following components in parts by weight: 60-95 parts of engineering residue soil, 5-40 parts of alkaline waste residues, 5-30 parts of a cementing material, 1-10 parts of a polymer emulsion, 0.5-3 parts of silica fume, 0.1-1 part of cellulose ether, 0.1-1 part of a compound water reducing agent and 0.5-2 parts of an exciting agent. The framework material comprises waste concrete blocks and / or waste brick blocks; the reinforcing material comprises a waste safety net and / or fiber gridding cloth. The flow-state solidified soil can achieve rapid backfilling in a narrow space, is excellent in shrinkage cracking resistance and impermeability, simple in preparation method and convenient to apply and construct, effectively solves the problems that the flow-state solidified soil is large in shrinkage, prone to cracking and the like, improves the quality of a backfilling project, achieves in-situ resource utilization of construction waste, and reduces the construction cost. And the construction cost of engineering can be reduced, and the problems of land occupation, environment pollution and the like caused by solid waste stacking are reduced.
Owner:HUNAN UNIV +1

Construction waste multi-source information fusion intelligent sorting method and system

The invention provides a building waste multi-source information fusion intelligent sorting method and system, and the method comprises the steps: arranging a plurality of different types of sensors on a conveying belt, obtaining multi-source data including a visible light image, three-dimensional information, spectral data, weight and vibration signals in real time, carrying out the Kalman filtering denoising and feature extraction, and carrying out the feature extraction of the multi-source data; carrying out weighted fusion on different modal features by adopting a multi-modal fusion algorithm and combining an attention mechanism to obtain a fusion feature vector; and inputting the fusion feature vector into a classification convolutional neural network, outputting the type and confidence of the construction waste, and controlling a sorting execution mechanism to realize accurate putting based on the confidence. Different wastes such as concrete blocks, metal, wood and plastic can be efficiently identified and sorted in various complex environments, the automatic sorting efficiency and accuracy are greatly improved, and the industrial application value is high.
Owner:GUANGXI QINGHUI ENVIRONMENTAL PROTECTION TECH CO LTD +1

High-performance flow-state solidified soil for backfilling based on composite ardealite of construction waste soil

PendingCN121135258ACelluloseKaolin clay
The invention discloses high-performance fluid-state solidified soil for backfill based on composite ardealite of building residue soil, which is prepared by taking the building residue soil as a core raw material, taking a compound of a polycarboxylic acid water reducer and hydroxypropyl methyl cellulose as a fluidization regulator, and mixing the fluidization regulator and the building residue soil to prepare the high-performance fluid-state solidified soil for backfill. Superfine slag powder, fly ash, nano silicon dioxide, metakaolin and ardealite are used as curing agents, so that the fluid-state solidified soil with strong performance is obtained. Through the synergistic effect of all the components and innovative processes such as liquid nitrogen low-temperature grinding, nano material compounding and a segmented vacuum stirring process, the effect that the ultrahigh strength of the construction waste soil reaches 7.5 MPa within 14 days is achieved for the first time and is improved by 40% or above compared with that of conventional solidified soil, and the industrial problem that traditional waste soil is insufficient in solidification strength is solved; and collaborative optimization of strength and fluidity is realized. Meanwhile, efficient resource utilization of the construction waste is achieved, land occupation and environmental pollution caused by muck landfill are greatly reduced, and the requirement for green and sustainable development is met.
Owner:CHONGQING JIAOTONG UNIV

Sintered hollow batten for building and preparation method of sintered hollow batten

The invention provides a sintered hollow batten for buildings and a preparation method, and belongs to the technical field of novel wall materials, the sintered hollow batten for buildings comprises the following raw materials: high-calcium fly ash, construction waste recycled aggregate, clay, sulphoaluminate cement, a foaming agent, reinforced fibers and an additive; wherein the particle size of the construction waste recycled aggregate is 0.5-5mm, and the construction waste recycled aggregate is subjected to plasma activation treatment; a nano TiO2 photocatalytic coating is loaded on the surface of the construction waste recycled aggregate; the reinforced fibers are composite fibers of basalt fibers and polypropylene fibers, and the mass ratio of the basalt fibers to the polypropylene fibers is (1: 1)-(1: 2). According to the sintered hollow batten for the building, the building waste recycled aggregate subjected to plasma activation treatment is adopted, and the nano titanium dioxide photocatalytic coating is loaded, so that the bonding strength of the aggregate is greatly improved, and the hollow batten is endowed with the function of degrading pollutants such as formaldehyde.
Owner:CHONGQING RONGCHANG DISTRICT XINXING BUILDING MATERIALS CO LTD

A multi-sensor fusion adaptive detection method for stone picking machine and intelligent stone picking machine

The present invention belongs to the field of agricultural machinery, and relates to a multi-sensor fusion adaptive detection method for a stone picker and an intelligent stone picker. The detection data of several sensors on the stone picker are collected, and a pre-trained transfer learning model in different environments is constructed. The transfer learning model is trained based on multi-task learning and adaptive gradient pruning, and the hyperparameters of the transfer learning model are adjusted through Bayesian optimization to obtain the optimal object recognition model under the current soil environment; based on a heuristic search algorithm, the parameter configuration of the sensor and the optimal object recognition model is automatically adjusted in combination with detection accuracy and energy consumption indicators; previous detection data are collected, and a clustering algorithm is used to determine whether there is a new pattern in the object detection result. If so, the optimal strategy of the object recognition model is generated through deep reinforcement learning and an environmental reward mechanism. Accurate detection, classification and efficient cleaning of stones and construction waste in reclaimed land and agricultural land are achieved, and manual labor is reduced.
Owner:INST OF AGRI RESOURCES & ENVIRONMENT SICHUAN ACAD OF AGRI SCI

Building solid waste road performance index and multi-path utilization scene intelligent evaluation method

The invention discloses a building solid waste road performance index and multi-path utilization scene intelligent evaluation method. The method comprises the steps that the mass content of red bricks, the mass content of needle-sheet-shaped particles and the particle gradation in building solid waste particles are obtained through a machine vision system; the pavement performance indexes, namely CBR value, water absorption rate and crushing value, of the building solid waste are obtained through tests; according to the influence rules of the mass content of the red bricks, the mass content of the needle-sheet-shaped particles and the grain composition in the building solid waste particles on the building solid waste road performance indexes, an estimation model of the building solid waste road performance indexes is established. According to the method, the mass content of the red bricks, the mass content of the needle-sheet-shaped particles and the grain composition in the building solid waste particles are obtained in real time on the basis of machine vision, the road performance indexes of the building solid waste are predicted through the prediction model of the road performance indexes of the building solid waste, and the detection efficiency and accuracy are improved.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Nano-modified composite cementing material

The invention provides a nano modified composite cementing material, which relates to the technical field of cementing materials, and comprises the following components: slag, construction waste powder, a nano material, an alkali activator and water. By introducing the nano material, the pore structure of the solid waste-based material is remarkably improved, and the gelling capacity, mechanical property and durability of the solid waste-based material are improved. Meanwhile, the material also has relatively strong crack resistance, and the photocatalytic performance and the self-cleaning function of the material can be improved by introducing a functional nano material.
Owner:THE THIRD CONSTR OF CHINA CONSTR EIGHTH ENG BUREAU

Civil construction waste crushing and recycling device

ActiveCN119612218AEfficient transportKnow the transportation accumulation situation in a timely mannerConstruction waste recoveryLoading/unloadingElectric machineArchitectural engineering
The invention discloses a civil construction waste crushing and recycling device, and particularly relates to the technical field of waste recycling and transportation, the civil construction waste crushing and recycling device comprises a transportation material channel, a supporting plate, a sliding frame and a positioning synchronous transportation mechanism; the positioning and synchronous conveying mechanism comprises a screw rod, a gear motor, a moving distance sensor, a sleeving block, a conveying box, two frame plates, a pushing electric cylinder, a pushing block, a discharging plate, a pushing electric cylinder, a pushing strip, a linkage strip and a pushing plate. The device further comprises a positioning material separation conveying mechanism and a conveying state processing assembly. By means of the positioning synchronous conveying mechanism, the conveying and stacking conditions of the crushed civil construction waste can be known in time, and the crushed civil construction waste which is stacked ultrahigh can be efficiently conveyed in time, so that the problems that the conveying and stacking conditions of the crushed civil construction waste are difficult to know in time, and the conveying efficiency of the crushed civil construction waste is improved are solved. And the crushed civil construction waste which is accumulated in an over-limit mode is difficult to efficiently transport in time.
Owner:HENAN FUCHEN PIPE IND CO LTD +1

Construction waste tracking method based on graph neural network

ActiveCN120821960AIllegal dumpingMulti source data
The invention discloses a construction waste tracking method based on a graph neural network. The method comprises the following steps: constructing preprocessed construction waste transportation multi-source data; constructing a construction waste transportation network weighted heterogeneous graph based on the preprocessed construction waste transportation multi-source data; a GraphSAGE node embedding vector is generated and updated; outputting an interruption point event consisting of the interruption position, the occurrence moment and the state element; extracting a local sub-graph with a fixed hop count from the weighted heterogeneous graph of the construction waste transportation network; a detour candidate path set with priority is obtained, and a self-healing tracking path with the highest score is selected; and forming an updated construction waste transport path tracking expected path, marking a potential illegal dumping risk node by combining compliance risk information in a GraphSAGE node embedding vector, and outputting a construction waste path tracking result. According to the method, detour path optimization sorting and high-risk path elimination are realized, and path reconstruction is enabled to better meet urban transportation scheduling and supervision requirements.
Owner:THE ARCHITECTURAL DESIGN & RES INST OF ZHEJIANG UNIV CO LTD +1

Waste and garbage sorting device for building

The utility model discloses a waste garbage sorting device for building, and relates to the technical field of building garbage sorting, the waste garbage sorting device comprises a device main body, the top of the device main body is provided with a feeding port, the inner wall of the feeding port is rotatably connected with a first threaded rod, one end of the first threaded rod is fixedly connected with a first servo motor, and the other end of the first threaded rod is fixedly connected with a second servo motor. By arranging a first threaded rod, when construction waste is sorted through the waste sorting device, in order to improve the cleaning effect of a crushing roller on cloth lint carried on the surface of the construction waste, the situation that the lint adheres to the surface of the crushing roller, and consequently the crushing roller is stuck is prevented; and when the crushing roller needs to be cleaned, a first servo motor is started to drive a lifting box to slide along the inner wall of a sliding groove through rotation of a first threaded rod, the lifting box moves to drive the crushing roller to ascend and descend from a feeding opening, and the effect of conveniently cleaning flannelette on the surface of the crushing roller is achieved.
Owner:尹本江 +1

Construction waste recycling and filling equipment with dust falling function

The invention discloses construction waste recycling and filling equipment with a dust falling function, and belongs to the technical field of construction waste recycling. According to the construction waste recycling device, the movable dust falling mechanism, the pushing and compressing mechanism, the first recycling and smashing roller and the second recycling and smashing roller are arranged in a matched mode, through the design, effective smashing in the construction waste recycling process can be achieved, meanwhile, effective filling of the construction waste can be achieved, and the construction waste can be recycled in the treatment process. Effective and all-directional dust falling treatment on dust is achieved, the sanitation degree of a working area is guaranteed, meanwhile, the dust falling range can be effectively expanded, the actual application effect of the whole device is greatly improved, meanwhile, construction waste can be pushed to the two sides, it can be effectively avoided that waste is accumulated in a certain position of the device in a concentrated mode, and the service life of the device is prolonged. And meanwhile, construction waste can be compressed, waste of storage space in the device is avoided, and follow-up centralized treatment of the recycled waste is facilitated.
Owner:TIBET ZANGJIAN IND CO LTD

Building concrete waste treatment system

The invention discloses a building concrete waste treatment system, which belongs to the technical field of building waste treatment, and is characterized in that a data acquisition module acquires waste physical attributes and inputs the waste physical attributes into a model generation and optimization module; the model generation and optimization module establishes a waste physical characteristic model, dynamically updates the waste physical characteristic model and outputs a dynamic waste physical characteristic model to the strategy generation module; the strategy generation module outputs equipment operation parameters; the strategy mapping module maps the equipment operation parameters into physical execution signals through an equipment instruction mapping model to obtain execution results, and the execution results are input into the strategy feedback optimization module; and the strategy feedback optimization module identifies the execution deviation in the execution result and feeds the execution deviation back to the strategy generation module to optimize the equipment operation parameters. According to the scheme, an intelligent algorithm and physical modeling are combined, the waste treatment process is optimized through real-time data collection and feedback, equipment parameters are adjusted based on different characteristics of the waste, and the problems of excessive treatment and resource waste are avoided.
Owner:ZHONGSHAN KEMAI WATER TECHNOLOGY CO LTD

Separating device for construction waste recycled aggregate

The utility model provides a separation device for construction waste recycled aggregate, which relates to the technical field of construction waste recycled aggregate and comprises a screening frame, a light material separation mechanism is arranged above the screening frame and comprises an eccentric wheel and a fixed box fixedly connected to the inner wall of the screening frame, and the eccentric wheel is arranged on the fixed box. An inclined plate is fixedly connected to the inner wall of the fixed box, a swing plate is hinged to the bottom face of the inclined plate, and the eccentric wheel is matched with the swing plate; the inner wall of the fixed box is fixedly connected with a breathable plate, and the bottom face of the breathable plate is fixedly connected with a first fixed hopper. According to the separation device for the construction waste recycled aggregate, through the arrangement of the light material separation mechanism, light materials such as wood chips and plastics in construction waste can be separated and recycled, the recycling efficiency is improved, resource waste is avoided, the light materials such as the wood chips and the plastics in the recycled aggregate are separated, and the quality of the recycled aggregate can be improved.
Owner:QIONGHAI RUIZE CONCRETE DISTRIBUTE LTD

Polluted soil and construction waste mixing and conveying device

The invention relates to the technical field of contaminated soil and construction waste treatment, in particular to a contaminated soil and construction waste mixing and conveying device which comprises a conveying mechanism, a driving unit, a cleaning unit and a scattering part. In the process of conveying a mixture, the mixture is heated and dried through external heating equipment, the inner surface of the screening roller is scraped and cleaned in real time through a scraping plate, contaminated soil is prevented from blocking the screening roller, meanwhile, the contaminated soil is scattered through a scattering part, the retention time of the contaminated soil in the area on the left side of the variable-pitch spiral plate is prolonged, and the screening efficiency is improved. The drying effect of the polluted soil is improved, and the screening and discharging efficiency and effect of the polluted soil are improved; by means of the characteristics that the pitch of the left side of the variable-pitch spiral plate is small and the pitch of the right side of the variable-pitch spiral plate is large, a mixture in the conveying process is gathered in a spiral pitch area with the small pitch of the left side of the variable-pitch spiral plate, and then it is ensured that the mixture is fully dried and scattered by family members in the area.
Owner:北川中联水泥有限公司

Construction waste and slag mixed crushing and powder brick making equipment

The invention provides construction waste and slag mixed crushing and powder brick making equipment, and relates to the field of construction waste resource utilization. The equipment takes an innovative crushing and brick making process as a core, and efficient conversion of construction waste and slag is realized through efficient mechanical design and an intelligent control system. The equipment mainly comprises the following key components: a collision seat and a rolling seat for preliminary crushing, a connecting rod and a rotating seat are arranged in the collision seat and the rolling seat, and the lower side wall is rotationally connected with a conical crushing roller; the internal output end of the supporting inner frame is fixedly connected with the rotating base, and the upper side wall of the supporting inner frame is connected with the rotating shaft and the throwing frame; a supporting inner cavity is formed in the adjusting sleeve on the outer side wall of the rolling base. Through multi-stage crushing and intelligent control, the problems that in the prior art, the crushing efficiency is low, particles are not uniform, and the automation degree is low are effectively solved, an efficient and environment-friendly solution is provided for resource utilization of construction waste and furnace slag, and industrial technical progress is promoted.
Owner:FUZHOU MEIJIA ENVIRONMENTAL PROTECTION RESOURCE DEV

Foundation construction material and dynamic compaction construction method

The invention relates to the technical field of building construction, in particular to a foundation construction material and a dynamic compaction construction method.The construction method comprises the following steps that S1, an early-stage preparation stage is conducted; s2, a trial compaction and parameter optimization stage; s3, a main body construction stage; s4, a multi-field coupling maintenance stage; s5, a foundation quality detection stage; and S6, an acceptance and filing stage. Through intelligent sensing and dynamic parameter regulation and control, self-adaptive optimization of the tamping process is achieved, over-tamping or under-tamping is avoided, and the foundation bearing capacity is improved by 15%-20%; the layered filling design of the gradient material is matched with different depth mechanical requirements, the grading continuity coefficient is larger than or equal to 0.5, and the compactness of the pier body is improved by 25% or above; an innovative Q value evaluation formula integrates multi-dimensional parameters, the detection accuracy rate reaches 90% or above, and the rework rate is remarkably reduced; the maintenance period is shortened to 7 days through the multi-field coupling maintenance technology, and the construction efficiency is improved by 50%; and the material cost is reduced by 30% by recycling the construction waste, and the method has economical efficiency and environmental protection performance and is suitable for various complex foundation treatment sites.
Owner:SHENZHEN RUNYU CONSTR ENG CO LTD

Building waste crushing treatment device for house building construction

The invention belongs to the technical field of construction waste treatment, and discloses a construction waste crushing treatment device for house building construction. Comprising a crusher body and a base; the top end of the base is fixedly connected with a conveying frame through multiple sets of elastic sheet plates. The feeding end of the conveying frame communicates with the discharging end of the pulverizer body through a hose. A strong magnetic roller is installed in the conveying frame, a driving mechanism is installed between the base and the conveying frame, and materials in the conveying frame are conveyed in a vibrating mode through matched use of the driving mechanism and an elastic piece plate. A shifting mechanism is mounted between the base and the conveying frame, and metal fragments adsorbed on the strong magnetic roller are shifted to one side of the conveying frame through the shifting mechanism; according to the device, metal fragments adsorbed on the strong magnetic roller can be effectively removed, and the metal removal efficiency and accuracy are improved.
Owner:SHANXI CONSTR ENG CO LTD

Ultrahigh reinforced body preloading structure

The utility model provides a superhigh reinforced body preloading structure. The treatment structure comprises a reinforced body working cushion layer, a water separation and drainage reinforced layer and an ultrahigh reinforced body stacking structure layer. The reinforced body working cushion layer comprises machine-made sand and an A-type geocell, the water insulation and drainage reinforced body structure comprises non-woven geotextile, a seepage insulation film and multiple layers of composite drainage grids, the composite drainage grids are adopted to replace a medium-coarse sand drainage layer, a vertical drainage plate is directly connected with the middle layer of composite drainage grids, and the vertical drainage plate is directly connected with the middle layer of composite drainage grids. The ultrahigh reinforced body stacking structure layer comprises non-woven geotextile, construction waste, B-type geocells and mineral powder. The foundation treatment effect is good, the sand consumption is reduced, the manufacturing cost is saved, design and engineering application are facilitated, and the engineering application prospect is very wide.
Owner:WUHAN SURVEYING GEOTECHN RES INST OF MCC

Preparation method of road base mixture curing agent based on construction waste recycled aggregate

The invention discloses a preparation method of a road base mixture curing agent based on construction waste recycled aggregate, and relates to the technical field of modified composite materials. According to the method, the construction waste recycled aggregate is collected and treated, and crushing and grinding are performed after impurities are removed, so that a proper particle size is obtained. Then, mixing the modified epoxy resin, a silane coupling agent, nano silicate, an organic silicon water repellent, a surfactant, a defoaming agent and water according to a preset proportion to form a silicate solution; in the preparation process of the modified epoxy resin, an epoxy resin emulsion reacts with other additives in a nitrogen atmosphere, so that the generated curing agent is ensured to have excellent mechanical properties and water resistance. The final curing agent is formed by adding boric acid into a silicate solution, heating and reacting, and drying. The curing agent not only improves the strength and stability of the road base mixture, but also effectively utilizes the construction waste, realizes resource recycling, and meets the requirements of sustainable development.
Owner:QINGDAO GREEN SAIL RECYCLED BUILDING MATERIALS +1

Fluidized solidified soil prepared from construction waste, preparation equipment and preparation method

The invention relates to the field of flow-state solidified soil, and discloses flow-state solidified soil prepared from construction waste, preparation equipment and a preparation method. The pre-dehydration module is used for controlling the water content of discharged materials to be less than or equal to 14%; the system further comprises a main drying system, an auxiliary material adding device, a water adding device and mixing equipment. The main drying system comprises a high-temperature drying area, a high-temperature buffering area and a heat preservation discharging area which are arranged in the vertical direction, materials treated by the pre-dehydration module are lifted into the high-temperature drying area through lifting equipment, the main drying system comprises at least two sets of material conveying belts, and a plurality of hot air openings are evenly formed in the top of the high-temperature drying area; an inlet of the hot air pipe is communicated with an air cavity heated by a heat source; a recovery channel communicating with the portion, close to the bottom, of the heat preservation discharging area is arranged on one side of the main drying system, and an obliquely-arranged dust baffle is arranged in the recovery channel. According to the invention, the problems of fluctuation of construction waste sources and large change of material moisture content in the prior art are solved.
Owner:SUZHOU UNIV +1

Method for intelligent sorting, detection, and recognition of construction waste

A method for intelligent sorting, detection, and recognition of construction waste. Construction waste images are collected as the original image sample set in the construction waste sorting site, the SRGAN algorithm is improved to preprocess the construction waste dataset images, and the preprocessed dataset is labeled and divided into train, validation, and test sets at an 8:1:1 ratio. An improved YOLOv8 detection and recognition model which introduces receptive field attention convolutions and multidimensional collaborative attention modules in the feature extraction part of the backbone is applied. This method for intelligent sorting, detection, and recognition of construction waste replaces manual labor with the construction waste intelligent sorting, detection and recognition method, solves the problem of loss of construction waste image features due to vibration of the conveyor belt and mutual occlusion of construction waste during the intelligent sorting process.
Owner:BEIJING UNIV OF CIVIL ENG & ARCHITECTURE

Method for preparing low-carbon cement based on construction waste

The invention discloses a method for preparing low-carbon cement based on construction wastes, which comprises the following steps: carrying out deep hydrothermal reaction on the construction wastes by using an autoclave under high-temperature and high-pressure conditions, so that silicon-aluminum minerals in the construction wastes are subjected to more thorough hydrothermal rearrangement to generate more stable hydrated silicate and aluminosilicate; the reaction activity of the clinker can be improved at the subsequent lower calcining temperature, so that the utilization rate and the high activity of complex components such as the building wastes in the cement preparation process are realized. The low-carbon cement disclosed by the invention is relatively high in later compressive strength and breaking strength, the strength grade of the low-carbon cement is 32.5, and the low-carbon cement meets building requirements and can be widely applied to the fields of buildings, roads and the like. According to the invention, closed cycle of solid waste-material is realized through waste recycling, and double innovation of material performance and ecological benefit is achieved.
Owner:CHONGQING JIAOTONG UNIV

Underwater acoustic-magnetic multi-modal fusion processing method

The invention discloses an underwater acoustic-magnetic multi-modal fusion processing method, which comprises the following steps: carrying out preprocessing and time-space alignment on collected sonar and magnetic data, and extracting a morphological feature vector and a magnetic feature vector of a pipeline; based on a pipeline route trend, calculating an optimal matching path of a sonar contour and a magnetic force abnormal zone through dynamic time warping, establishing acoustic-magnetic mapping, and fusing features to generate a joint vector; finally, the type and state of the pipeline are judged according to the combined characteristics, and the problem that in a near-shore port and an industrial area water area, due to the interference of construction waste and the influence of a pipeline coating layer, a single sonar is difficult to accurately detect the pollution discharge pipeline and the cable is solved. According to the method, the complementarity of acoustic and magnetic characteristics is utilized, the accuracy of pipeline detection in a complex scene is improved, and reliable data support is provided for operation and maintenance of near-shore water area pipelines.
Owner:SHANGHAI MYBRO TECH CO LTD +1

Method and system for realizing intelligent sorting of construction waste based on computer vision

The embodiment of the invention provides a method and system for achieving intelligent sorting of construction waste based on computer vision. The method is applied to the computer vision technology field. The method comprises the steps of material conveying and primary induction, multi-modal data acquisition and synchronization, multi-modal data preprocessing and correction, robust target recognition and classification, high-precision three-dimensional pose estimation and grabbing point planning, intelligent sorting decision and mechanical arm control, sorting execution and state monitoring and adaptive learning and optimization. In this way, by introducing multi-modal sensing, deep learning and three-dimensional geometry fusion recognition, high-precision three-dimensional pose estimation and a self-adaptive control and feedback optimization mechanism, the automation level, efficiency and precision of construction waste sorting and the stability of the system in a complex environment are remarkably improved.
Owner:GUIZHOU RADIO & TV UNIV

Building solid waste self-adaptive sorting method and system based on multi-modal vector retrieval

The invention provides a building solid waste self-adaptive sorting method and system based on multi-modal vector retrieval. The method comprises the steps that original data of building solid waste are collected; extracting multiple data features from the original data; fusing the plurality of data features to obtain a fused feature vector; performing similarity matching on the fused feature vector database in a vector retrieval mode, and confirming solid waste material classification and a corresponding sorting decision instruction; and based on the sorting decision instruction, building solid waste sorting is executed. The problems that a traditional sorting technology is low in precision and poor in adaptability are solved. The system can be widely applied to the fields of construction waste recovery, resourceful treatment and the like, and has remarkable economic and environmental benefits.
Owner:CCCC SECOND HIGHWAY CONSULTANTS CO LTD