789results about "In situ pavings" patented technology

The invention relates to a cement pavement microcrack homogenization treatment method and system, and relates to the technical field of pavement structure repairing, and the method comprises the following steps: collecting pavement image information; obtaining a crack pavement image based on the pavement image information and a preset crack feature; obtaining a pavement construction specification through the crack pavement image; collecting sound wave detection information corresponding to the crack pavement image; interval water injection is conducted according to the sound wave detection information and the preset detection flow to obtain a variable water level, and crack parameters are obtained in combination with the pavement construction specification, the detection flow and the variable water level; and reinforcement parameters and micro-crack parameters are obtained through the crack parameters, and the reinforcement parameters and the micro-crack parameters are uploaded and displayed. The method has the effect of prolonging the service life of the repaired pavement.

The application discloses a self-repairing crystal anti-permeation high-durability cement-based material, a cement-based surface structure and a paving method thereof. The self-repairing crystal anti-permeation high-durability cement-based material comprises the following components in parts by weight: Portland cement 40-60 parts, wear-resistant aggregate 35-50 parts, water reducing agent 0.02-0.05 parts, retarder 0.2-0.5 parts, redispersible emulsion powder 1-2 parts, silica fume 1-2 parts, expanding agent 1-3 parts, chelating agent 1-6 parts and crystallization precipitant 1-6 parts; the total amount of the above components is 100 parts; the chelating agent is diethylenetriamine pentaacetic acid, and the weight ratio of the chelating agent to the crystallization precipitant is (0.5-2):1. The cement-based material has excellent self-repairing property, so that the strength, durability and anti-permeation property of the cement-based material are significantly improved.

The invention relates to an intelligent regulation and control method and system for a pavement asphalt mixture paving temperature field, computer equipment and a computer readable storage medium. The method comprises the steps that an infrared temperature matrix, internal temperature gradient data and environment and equipment operation parameters of a paving area are collected; and based on the temperature gradient data, carrying out compensation correction on the shielding area in the infrared temperature matrix. And fusing the corrected surface temperature matrix with the internal temperature gradient data to form a three-dimensional temperature field tensor. And inputting the tensor into the prediction model, and outputting future temperature field prediction data in combination with environment and equipment parameters. And generating a hierarchical control instruction set according to the local temperature difference, the temperature change slope and the lowest temperature threshold in the prediction data, and distributing the hierarchical control instruction set to a corresponding execution system. And acquiring actual temperature data after instruction execution, calculating errors and dynamically updating prediction model parameters. The paving uniformity, compactness and long-term durability of the asphalt pavement are improved.

The invention discloses an environment-friendly construction method for in-situ cold regeneration of foamed asphalt based on old material regeneration, aims to solve the problems of unstable performance of a mixture and insufficient utilization of old materials caused by diverse characteristics of the old materials in a traditional in-situ cold regeneration process of the foamed asphalt, and provides a dynamic adaptive construction method. The method comprises the following steps: firstly, detecting the passing rates of 19mm and 0.075 mm sieve pores of an old material and the penetration of asphalt at 25 DEG C; dividing into three grades according to grading, and dividing the aging degree into three degrees; dynamically adjusting the mix proportion, the pre-wetting parameters of the bio-oil-based regenerant and the old material doping temperature according to grading; according to the method, the performance of the regenerated mixture is ensured, the utilization rate of old materials is increased, and the method has both environmental protection and economic benefits.

The invention belongs to the technical field of asphalt, and particularly relates to modified asphalt and a preparation method and application thereof.The modified asphalt comprises matrix asphalt and a modified asphalt additive, the modified asphalt additive comprises rubber powder, basalt fibers and lignin fibers, and the adding amount of the rubber powder is 24.3%, the adding amount of the basalt fibers is 0.32%, and the adding amount of the lignin fibers is 0.08%. According to the method, statistical analysis, prediction model development and numerical optimization are carried out by utilizing a response surface method (RSM), a formula capable of enabling the softening point to reach the maximum value is determined within the range of 15%-25% of rubber powder mixing amount, 0-0.4% of basalt fiber and 0-0.4% of lignin fiber content, a scientific basis is provided for actual production, and the quality and production efficiency of the modified asphalt are improved.

The invention discloses basalt fiber reinforced low-carbon environment-friendly asphalt and a construction method of the basalt fiber reinforced low-carbon environment-friendly asphalt on a high and cold road surface, and relates to the technical field of road engineering. The basalt fiber is subjected to ultrasonic treatment by a silane coupling agent KH-550 hydrolysate and dried, and the low-carbon additive is prepared from waste rubber powder and biological asphalt and is matched with an anti-stripping agent; adding biological asphalt, stirring at a high speed, adding basalt fibers in three times, stirring at a high speed, and finally adding an anti-stripping agent to prepare an asphalt composition; adding an asphalt composition for wet mixing, and then adding fibers for continuous mixing to obtain a mixture; after the lower bearing layer is preheated, a crawler-type paver paves at the temperature of 155-165 DEG C, and the speed and the loose paving coefficient are controlled; initial pressing, re-pressing and final pressing are carried out, and a double-steel-wheel and rubber-wheel road roller is used for rolling according to the temperature and the speed; and after compaction, the heat-insulating tarpaulin is covered. The low-temperature crack resistance and freeze-thaw resistance of the basalt fiber reinforced asphalt, the carbon emission reduction of the waste rubber powder and the biological asphalt and the construction quality guarantee through dynamic temperature control and intelligent compaction are realized, and the construction method is adaptive to the alpine regions and meets the requirements of green road construction.

The invention discloses an ardealite-based flow-state self-compacting roadbed filling material as well as a preparation method and a construction method thereof. The roadbed filling material comprises the following components in percentage by mass: 20-30% of modified ardealite, 15-25% of modified solid waste micro powder, 20-60% of a cement curing agent and 0.5-1.2% of a thickening time control agent, the modified ardealite is obtained by calcining solid waste ardealite at 600-800 DEG C for 2-4 hours; the modified solid waste micro powder is obtained by mixing and grinding slag and steel slag. The solid waste ardealite is modified and combined with the steel slag and the mineral slag to form an ardealite-mineral slag-steel slag ternary synergistic curing system, the rheological property and the early strength of the material are remarkably improved by combining the cement curing agent, and the fluidity and the setting time of the slurry are effectively regulated and controlled through the thickening time control agent; the self-compaction performance and construction efficiency in the construction process are guaranteed, meanwhile, the consumption amount of solid waste ardealite is increased, the cement consumption and carbon emission are reduced, and the self-compaction ardealite concrete can be suitable for construction under complex working conditions such as narrow space or special geological conditions.

The invention provides low-temperature-resistant concrete as well as a preparation method and application thereof, and belongs to the field of building materials. The low-temperature-resistant concrete disclosed by the invention is prepared from the following raw materials in parts by mass: 100 to 2000 parts of cement, 2000 to 3000 parts of aggregate, 1000 to 3000 parts of sand, 200 to 500 parts of water, 5 to 15 parts of a water reducing agent, 0.1 to 5 parts of a de-foaming agent, 0.01 to 0.2 part of an air entraining agent and 0.01 to 0.2 part of a retarder. The low-temperature-resistant concrete contains the composite cement system composed of the sulphoaluminate cement and the Portland cement, compared with pure Portland cement and pure sulphoaluminate cement, the performance of the composite cement system is more excellent, the early strength of the concrete is improved through optimization of the water cement ratio and the synergistic hydration effect of a composite cement body, and the low-temperature-resistant concrete has the beneficial effects that the early strength of the concrete is improved; the anti-freezing durability in a low-temperature environment is enhanced, the strength loss rate after freezing and thawing cycles is low, and the anti-freezing concrete has a good application prospect.

The invention relates to the field of building materials, discloses modified asphalt and application thereof, and provides a high, medium and low fiber modified asphalt scheme aiming at the problems that traditional asphalt is insufficient in high-temperature stability and easy to crack at low temperature. According to the high-fiber modified asphalt, PBO fibers, a KH-550 silane coupling agent and 70 # asphalt are used as raw materials, and a high-temperature-resistant rigid framework is formed through surface modification and gradient dispersion processes. The medium fiber modified asphalt is compounded with basalt and polyester fibers to construct a three-dimensional anti-cracking network, so that the cost and the performance are balanced. The low-fiber modified asphalt is prepared from natural materials such as bamboo fibers and sugarcane fibers and is combined with a PLA bio-based plasticizer, and the ductility at the temperature of 10 DEG C below zero is larger than or equal to 30 cm. Through fiber surface treatment, silane coupling and bio-based plastification, the compatibility problem is solved, precise matching of high performance, high cost performance and low carbonization is achieved, and the interface bonding strength is improved by 40% or above.

The invention discloses a geogrid and EICP synergistically reinforced soil embankment structure and a construction method, and relates to the technical field of soil embankment structures. Comprising a pavement base layer, an embankment bearing layer and a natural soil foundation layer, and the natural soil foundation layer is used as a soil embankment structure support and is arranged at the bottommost layer; the pavement base layer is used for bearing an upper driving load and uniformly transferring the upper driving load to the embankment bearing layer below; and the embankment bearing layer is used for bearing the upper load transmitted by the pavement base layer. The engineering performance is improved through the multi-layer synergistic effect, the core reinforcing layer is of an innovative space grid structure and is composed of a prefabricated geogrid, a grid support arranged in the inclined direction and a rigid stress plate frame, a three-dimensional force transmission network is formed, the limitation of a traditional reinforcing method is broken through, and the engineering performance is improved. In addition, the grating support is arranged at a specific angle, the structural rigidity is guaranteed, and the stress concentration phenomenon is avoided.

A surface structure 2 for an area of hard standing comprises a particulate body 14 formed from a plurality of particulates 16, such as gravel, bonded by a cured resin material. At least one mesh layer

The invention discloses a vibration angle control method and system in the concrete pouring process. Collecting layer thickness data of the concrete pavement and an initial included angle of vibrating equipment, and determining an initial adjustment range of the included angle; the insertion track is analyzed, and the distribution condition of the vibration force intensity is determined; identifying an area with insufficient vibration force transmission, simulating to obtain a vibration force transmission path and determining a first included angle; according to the relation between the included angle and the force acting time, rationality judgment is conducted on the vibrating time; the advancing speed of the vibrating equipment is adjusted according to the first included angle; corresponding vibration time is calculated, and a time scheme is determined; and generating control parameters according to the time scheme, and adjusting the scheme based on the compactness to obtain a final execution scheme. Through multiple times of feedback, judgment and adjustment, whether the vibrating process meets the requirements for the angle, the speed and the compactness or not is accurately known, the problems that the ultra-thick concrete pavement is uneven in vibrating and insufficient in deep layer compactness are effectively solved, and the pavement construction quality and efficiency are improved.

The invention provides multifunctional energy storage concrete, application thereof and an energy storage concrete member, and belongs to the technical field of concrete. The multifunctional energy storage concrete is prepared from the following components in parts by weight: 300 to 600 parts of ordinary Portland cement, 30 to 100 parts of mineral admixture, 300 to 700 parts of quartz sand, 5 to 60 parts of conductive material, 4 to 8 parts of admixture and 120 to 250 parts of water. The conductive material is added into the concrete, and a conductive network can be formed in the concrete material, so that the concrete has electric energy storage and conduction functions. The energy storage concrete provided by the invention can be used as a structural member for energy storage, and can also be combined with other energy technologies (such as solar energy and wireless charging) to realize integration of power generation, storage and utilization.

The invention discloses a normal-temperature bio-based asphalt cold patch material and a preparation method thereof. The cold patch material comprises 96.5-98wt% of an asphalt pavement recycled material and 2-3.5 wt% of a bio-based asphalt cold patch liquid, and the cold patch liquid comprises 60-70wt% of matrix asphalt, 10-20wt% of a bio-based diluent and 20-30wt% of a bio-based regenerant. The preparation method comprises the following steps: preparing epoxidized soybean oil methyl ester and hydrogenated methyl ricinoleate; the preparation method comprises the following steps: uniformly mixing vegetable oil and a derivative component thereof, fatty acid and an ester component thereof, a natural small-molecular organic matter component and carnosic acid at normal temperature to prepare a bio-based diluent; the method comprises the following steps: heating matrix asphalt to a flowing state, adding a bio-based regenerant, cooling, and adding a bio-based diluent to prepare a cold supplementing liquid; and adding the cold patch liquid into the asphalt pavement recycled material, and mixing to obtain the cold patch material. The bio-based asphalt cold patch material has high initial strength, the repaired pavement is high in stability, and the repair rate of diseases and the probability of repeated occurrence of the diseases are greatly reduced.

This invention relates to a pavement structure and its installation method. The pavement structure includes a main body, which comprises a base layer, a concrete layer, and a first bonding layer. The first bonding layer is disposed between the base layer and the concrete layer to bond the base layer and the concrete layer. A storage tank is fixedly disposed on the side of the main body. The storage tank is used to store an aqueous solution of light stabilizer, and the top of the storage tank is provided with a feeding port, in which a plug is detachably installed. The main body also includes a hydrophilic polymer fiber mesh, which is laid on the concrete layer and extends into the storage tank from the side. The polymer fiber mesh can adsorb and disperse the aqueous solution of light stabilizer on it. The surface tension of the fibers promotes the flow of liquid, and the aqueous solution of light stabilizer in the storage tank is uniformly absorbed and dispersed throughout the pavement structure, extending the UV resistance of the pavement structure and ensuring the full service life performance of the concrete.

The application discloses a method for determining the optimal spraying time of a road penetration layer and a sealing layer, comprising the following steps: preparing semi-rigid base mixture according to design requirements and laying the semi-rigid base; preparing penetration layer material and sealing layer material according to design requirements respectively and laying the penetration layer and the sealing layer; preparing asphalt sub-base mixture according to design requirements and laying the asphalt sub-base; preparing shear test pieces on the semi-rigid base asphalt pavement formed by spraying the penetration layer and the sealing layer with different spraying time combinations, and performing shear tests respectively, and performing multi-stage verification on the shear test results, so as to determine the optimal spraying time combination of the road penetration layer and the sealing layer. The application can accurately determine the optimal spraying time combination of the penetration layer and the sealing layer, improve construction efficiency and reduce maintenance cost. The determined spraying time combination of the penetration layer and the sealing layer will not cause the semi-rigid base to crack, the interlayer adhesion between the semi-rigid base and the asphalt sub-base is firm enough, and the service life of the road is improved.

A kind of high durability airport pavement quick repair composition and preparation method and quick repair method, by mass parts, quick repair composition includes cementitious material 80-130 parts, aggregate 90-120 parts, fiber material 10-20 parts, functional material 15-40 parts;Fiber material includes at least one of PVA fiber, cellulose fiber;Functional material includes polyacrylate, calcium carbonate, active titanium dioxide and self-repairing microcapsule;Self-repairing microcapsule, 15-50% of the total mass of functional material, including repair core layer, resin shell layer and the fiber repair layer adhered to the surface of resin shell layer, repair core layer includes inorganic repair mixture, resin shell layer includes toughened resin composition.The application utilizes the quick repair composition with excellent comprehensive performance and the quick repair method adapted, ensures that repair layer and old base form strong and tough interface synergistic effect, simultaneously realizes to crack high-efficiency trigger, environmental robust and long-acting stable self-repairing function.

A paving material composition containing: an epoxy resin; an epoxy resin curing agent containing a reaction composition (A) containing a reaction product of styrene and a polyamine compound represented by the following formula (1); and an aggregate.wherein X is a phenylene group.

The invention belongs to the technical field of steel bridge pavement, and particularly discloses a high-viscosity asphalt double-layer SMA pavement layer structure and a construction technology thereof. The high-viscosity asphalt double-layer SMA pavement layer structure comprises an upper pavement layer, a waterproof bonding layer and a lower pavement layer, the upper pavement layer is laid on the lower pavement layer, the upper pavement layer comprises fine aggregate, limestone powder, modified asphalt, basalt fibers and a Wenn glue mixture, the thickness of the upper pavement layer is 35-40 mm, and the thickness of the waterproof bonding layer is 10-20 mm. The waterproof bonding layer comprises modified asphalt, epoxy resin, a silane coupling agent, a curing agent, a curing accelerator, butadiene styrene rubber, a silane coupling agent and talcum powder, the thickness of the waterproof bonding layer is 0.5-1 mm, and the lower pavement layer comprises coarse aggregate, modified asphalt, acrylonitrile-butadiene-styrene copolymer, porous ceramic particles, rubber particles, calcium stearate and waterborne polyurethane. And the thickness of the lower paving layer is 10-15mm. Various raw materials are mixed, so that the strength and durability of the pavement layer structure are improved, and the service life of the pavement is prolonged.

This application relates to a method for paving a landscape path, comprising the following steps: Step 1: Cleaning the mortar and other debris from the paving surface and ensuring its flatness; Step 2: Feeding a mixture of pebbles and gravel into a paving device, then driving the device along the paving path to lay the gravel and pebbles on the road surface, forming a gravel layer and a pebble layer, with the gravel layer on top of the road surface and the pebble layer on top of the gravel layer; Step 3: Compacting the pebbles and checking their plane and elevation. If the plane and elevation exceed the construction requirements, rework is required; Step 4: Curing the road surface by spraying water onto the surface, ensuring the water fully contacts the gravel and pebble layers to improve their stability. This application uses gravel and pebbles for paving, achieving a combination of landscape and road design, promoting green environmental protection and a connection with nature.

The utility model discloses an asphalt pavement self-drainage structure, which particularly relates to the technical field of road engineering, and comprises a foundation layer, a broken brick layer and a cement layer which are sequentially arranged on the foundation layer, a rubble layer paved above the cement layer and an asphalt layer paved above the rubble layer, the rubble layer extends out of two sides of the asphalt layer, the broken brick layer and the cement layer, and main drainage grooves are formed in the two sides of the gravel layer correspondingly. According to the asphalt pavement self-drainage structure provided by the utility model, the gravel layer and the asphalt layer are paved on the original cement layer, so that rainwater partially permeates when falling onto the asphalt layer, and is drained towards two sides along the cement layer through the permeation of the gravel layer; rainwater on the upper portion of the asphalt layer is discharged towards the two sides of the asphalt layer and flows into the main drainage groove through the gravel layers on the two sides of the asphalt layer to be collected and discharged, then the rainwater is guided to flow into the main drainage groove to be collected under the condition that an original cement layer is not damaged, and the rainwater discharging effect is improved.

The invention relates to the technical field of road engineering, in particular to a reinforced concrete stiffening dense rib pile supporting post-tensioning method prestressed road and a construction method. According to the overall technical scheme, dense rib pile multilateral wing beam pile head integrated design is adopted, pile sinking is conducted through a steel casing guide soil squeezing static pressure method, longitudinal and transverse crossed flat and hidden beams cooperatively bear, butt joint steel bars are connected through a full grouting sleeve grouting method, post-tensioning method unbonded prestressed tendon perforation laying is conducted, and double-I-beam pedestal bearing prestress applying and anchoring are conducted; according to the principle of reinforcing the bearing effect of road structure group piles through reinforcing meshes, the rapid mounting and dismounting process of aluminum molds and comprehensive pavement of asphalt concrete surface layers, the bearing capacity of the road structure is improved, the stability and durability are enhanced, meanwhile, the construction efficiency is optimized, and the follow-up maintenance cost is reduced.

The invention discloses a base joint filling material for a white-to-black overlay of a cement pavement, a preparation method and application, the base joint filling material comprises, by mass, 25-35 parts of an asphalt material, 12-15 parts of mineral powder, 25-40 parts of aggregate and 15-30 parts of elastic particles, the particle size of the mineral powder is less than 0.075 mm, the particle size of the aggregate is 1-3 mm or 3-5 mm, and the particle size of the elastic particles is 1-3 mm or 3-5 mm. According to the method, the aggregate of the joint filling material is innovatively classified on the basis of the broken edge joint defect size, high filling compactness and good flexibility are guaranteed by matching fine aggregate with small-particle-size elastic particles for small-size joints, and effective support is provided by matching coarse aggregate with large-particle-size elastic particles for large-size joints; and accurate matching of material performance and engineering requirements is realized.

The invention discloses a construction method for stabilizing a macadam road base by using a super-retarding cementing material, and relates to the technical field of road bases. Comprising the following steps: dividing the super-retarded cementing material stabilized macadam road base into a plurality of layers, adding a cementing material into a macadam material conforming to a grading curve according to a set gradient, measuring the compressive strength of the macadam material, and comparing the compressive strength with performance requirements to obtain the addition amount of the cementing material in each layer; respectively adding mixing water in a set proportion into the gravel material to obtain a gravel mixture, and testing the compressive strength of the gravel mixture for multiple times at a set time interval to obtain the component proportion of the gravel mixture with long allowable delay time; according to the gravel mixture transportation time of the construction site and the allowable delay time of the gravel mixture used by each layer, the allowable construction time and the allowable construction length of each layer are determined; during construction, the upper layer is paved and rolled within the initial setting time of the lower layer. A multi-thread program type three-layer continuous paving process is adopted for construction, the maintenance time of the sub-base layer and the lower base layer is shortened, the construction period can be shortened, and the maintenance cost is saved.

The invention provides a preparation method and application of double-waste composite modified asphalt for a road overlay. The preparation method comprises the following steps: S1, pretreating WPE and WEO raw materials; s2, mixing the pretreated WPE and WEO, and adding a nano material to obtain a composite modified master batch; s3, preparing a compatilizer and a stabilizer; s4, road petroleum asphalt is heated and kept in a molten state, the composite modified master batch prepared in S2 is added under the condition of continuous stirring, then shearing is conducted in the inert gas atmosphere, a compatilizer, a stabilizer, paraffin-oleate self-healing microcapsules and carbon nanotubes are added in the shearing process, and a composite modified asphalt-based material is formed; and S5, cooling the composite modified asphalt-based material obtained in S4, and filtering to obtain the composite modified asphalt. The prepared composite modified asphalt can be used for a road overlay, and the problems that a traditional overlay modified material is high in cost and single in performance are solved.

The invention discloses a fiber concrete preparation for a pavement, a preparation method thereof and a pavement construction method, relates to the technical field of road construction, and solves the problems of poor elasticity, durability and other performances of the existing pavement. Comprising a binding material composed of Portland cement, granulated blast furnace slag powder and silica fume, aggregate composed of continuous graded broken stone and machine-made sand, composite fiber composed of basalt fiber and polyvinyl alcohol fiber, a functional additive composed of a water reducing agent, a water-retaining agent and a defoaming agent, a catalyst composed of nano-silica and tricalcium aluminate, and water. The pavement construction method comprises the following steps: paving the preparation within 30 minutes, vibrating by adopting a high-frequency vibrator, leveling by adopting a laser leveling machine, covering with geotechnical cloth, and maintaining under standard conditions. The method can be applied to pavement construction, and is particularly suitable for severe pavement scenes such as severe cold and heavy load.

The invention relates to the technical field of pavement structures, in particular to a high-bearing-capacity permeable pavement structure based on ecological concrete.The high-bearing-capacity permeable pavement structure comprises a surface ecological permeable concrete layer, a high-bearing-capacity supporting framework layer and a stable base layer, a mounting groove is formed in one side of the top end face of the surface ecological permeable concrete layer, and a first connecting hole is formed in the side wall of the mounting groove through a drainage hole; a mounting hole is formed in one side of the top end face of the surface ecological water-permeable concrete layer, and the lower side of the mounting hole communicates with a second connecting hole. According to the ecological water-permeable system, the surface ecological water-permeable concrete layer, the high-bearing supporting framework layer and the multi-stage filtering drainage structure are introduced into a traditional water-permeable system, and cooperative improvement of the bearing performance and the water-permeable performance is achieved; according to the structure, high strength and stability are guaranteed, meanwhile, rainwater is purified step by step through the coarse filter layer, the medium filter layer, the fine filter layer and filter cotton arranged in the filter box, pores are effectively prevented from being blocked, and long-term water permeability is maintained.

To bury a power supply device for contactlessly supplying power to a power reception device provided on a movable body moving on a driving lane in the vicinity of a road surface while suppressing temporal change of power transmission efficiency.SOLUTION: In a power supply device burying structure, a power supply device for contactlessly supplying power to a power reception device provided on a movable body moving on a driving lane is buried in the driving lane. The power supply device has a coil case equipped with a slip preventive member on an outer peripheral surface thereof and a power supply coil stored in the coil case. The driving lane has a semiflexible pavement body that is formed of cured open-graded asphalt mixture having a concave part on a top surface and cement milk permeating the open-graded asphalt. The coil case is stored in the concave part.SELECTED DRAWING: Figure 1

This disclosure relates to a non-volatile room-temperature modified asphalt binder, a non-volatile room-temperature recycled asphalt mixture containing the same, and a method for repairing potholes and cracks using the same. [Solution] A non-volatile, room-temperature recycled asphalt mixture according to one embodiment has the advantages of improved fluidity, prevention of conventional asphalt cracking, improved peeling, and enhanced thermal stability.

The invention relates to the technical field of road engineering, and discloses an old road composite disease layered repair and asphalt paving integrated process which comprises the following steps: carrying out layered targeted repair on old road diseases; carrying out synergistic enhancement treatment on a repair interface, namely arranging a high-elasticity polyurethane and asphalt stress absorption layer at a construction joint of the new and old plates, and carrying out mechanical micro grooving on the surface of a grouting area; evaluating a representative deflection value of the repaired pavement by using a drop weight deflectometer, and dynamically matching an asphalt paving structure scheme; after the glass fiber grating is laid, the matching scheme is executed. According to the composite pavement structure disclosed by the invention, a synergistic enhancement interface comprising the stress absorption layer and the micro-carving grooves is arranged between the repaired base layer and the asphalt surface layer. According to the method, the quantitative feedback relationship between the repairing effect and the paving design is established, and the systematicness and accuracy of the repairing project are improved by cooperatively enhancing the interface to inhibit the reflection crack.