42 results about "Sealcoat" patented technology

The invention belongs to the technical field of road engineering detection, and particularly discloses harbor district asphalt road permeability detection equipment which comprises a permeability detection equipment body, the permeability detection equipment body comprises a detection main body and a detection shell, the detection main body comprises a rotating disc, and a clamping block is arranged below the rotating disc; the detection shell comprises an outer cover shell, the surface of the clamping block is movably installed in the outer cover shell, a sealing material is arranged at the end corner of the bottom in an inner cavity of the outer cover shell, and an extrusion mechanism is arranged on the inner wall of the outer cover shell; through the synergistic effect of the extrusion mechanism and the sealing material, when the clamping block moves downwards, the extrusion mechanism extrudes the sealing material, so that colloid in the sealing material overflows to fill a gap between the bottom of the outer cover shell and the road surface, a flexible sealing layer is formed, the device adapts to microscopic unevenness of the road surface, and the sealing performance of a detection area is ensured; manual sealing material smearing is not needed, operation is simplified, and working efficiency is improved.

The invention belongs to the technical field of underground gas storage, and particularly relates to an energy-storage and hydrogen-storage modified asphalt slip layer for an underground rock cave and a preparation method of the energy-storage and hydrogen-storage modified asphalt slip layer. The modified asphalt slip layer disclosed by the invention has a lubricating effect, and can promote interlayer slip between structures and reduce the friction resistance of the contact surface of the concrete lining and the steel lining, so that the tensile stress of the steel lining is reduced, and the fatigue damage of the steel lining of a sealing layer caused by frequent inflation and deflation is relieved. Wherein through the modification of the styrene-butadiene-styrene block copolymer, the slippage layer has higher durability; the long-fiber polyester felt base cloth and the talcum powder are used, so that the thickness of the slip layer is increased and can reach 5-6 mm; and the viscosity of the slip layer is increased by using the hot melt adhesive, so that the slip layer can be quickly adhered to a structure to realize quick construction. An effective solution is provided for reducing fatigue damage and deterioration of the sealing layer steel lining and guaranteeing the sealing performance of the underground rock tunnel energy storage and hydrogen storage facility, and the method is suitable for large-scale application and popularization.

The utility model relates to a thermal insulation asphalt regeneration roller which comprises an outer roller body, the inner cylinder body is arranged in the outer cylinder body, a pair of end plates are arranged between the outer cylinder body and the inner cylinder body, and a material cavity is defined by the outer cylinder body, the inner cylinder body and the pair of end plates; the combustor is arranged at one end of the inner cylinder body and is communicated with the interior of the inner cylinder body; the sealing layer is arranged on the outer side of the outer barrel, and a high-temperature steam inlet pipeline and a high-temperature steam outlet pipeline are arranged on the sealing layer; and the thermal insulation layer is arranged outside the sealing layer. The outer cylinder wall is heated by high-temperature steam in the sealing layer, so that the outer cylinder wall is uniformly heated, the adhesion of material blocks on the inner wall surface of the outer cylinder body is reduced, the material blocks fall off, and the material sticking phenomenon is effectively prevented; in addition, through the heat preservation layer arranged on the outer wall of the outer cylinder body, a heat insulation barrier is formed, heat dissipation from the outside of the drying cylinder can be effectively reduced, the production efficiency and the product quality are guaranteed, energy is remarkably saved, and the production cost is reduced.

The utility model relates to a roof structure of a heavy-load traveling crane, and belongs to the technical field of civil engineering structure construction. Comprising a surface layer, an isolation layer, a waterproof layer, a foam concrete heat preservation layer and a reinforced concrete roof structure layer which are sequentially arranged from top to bottom. The surface layer comprises a sealing layer and a steel fiber concrete layer, and the sealing layer is a high-wear-resistance polyurethane antiskid surface layer; the foam concrete heat preservation layer can improve the heat preservation and waterproofness of the roof structure; the waterproof layer can be two layers of SBS modified asphalt waterproof coiled materials, and can also be an SBS modified asphalt waterproof coiled material waterproof layer and a non-cured rubber asphalt waterproof coating layer. The steel fiber reinforced concrete layer is arranged as the surface layer, so that the problem that the surface layer of the traveling crane roof structure is insufficient in rigidity is solved, the water seepage risk is reduced through combination of the high-abrasion-resistance polyurethane anti-skid surface layer and the steel fiber reinforced concrete layer, slope making is directly carried out on the surface of the reinforced concrete roof structure layer to replace a slope making layer, roof slope making materials are reduced, and the construction cost is reduced. And the manufacturing cost of the roof structure is reduced.

The utility model discloses a kind of seamless expansion joint drainage structures, solve the problem of water seepage falling and setting instability in prior art seamless expansion joint structure, expansion joint sets up drainage conduit and accesses bridge drainage main pipe to form expansion joint drainage structure system, with beneficial effect, specific scheme is as follows:a kind of seamless expansion joint drainage structure, including the end side concrete piece located at the length direction end side of each bridge beam body, end side concrete piece is bonded with bridge beam body, nut seat is set in end side concrete piece, nut seat is set along the width direction of bridge beam body, end side concrete piece on the both sides of expansion joint supports waterstop, waterstop is communicated with bridge drainage main pipe by water guide pipe, elastic expansion component straddles expansion joint and its both sides are respectively placed on the upper surface of corresponding side end side concrete piece, elastic expansion component respectively press sets the both sides of waterstop at corresponding side end side concrete piece, first fastener detachably connects elastic expansion component and nut seat, elastic sealing layer is laid between elastic expansion component and bridge deck pavement layer.

An asphalt-based sealcoat composition comprising high levels of titanium oxide particles is provided. In some embodiments, a highly solar reflective asphalt-based sealcoat composition comprising high levels of titanium oxide particles is provided. In some embodiments, an asphalt-based sealcoat composition capable of reducing pollutants comprising high levels of titanium oxide particles is provided. In some embodiments, methods for preparing asphalt-based sealcoat compositions as well as their application to asphalt surfaces is provided.

The utility model provides a torrent chute, relates to highway engineering technical field, including bottom base plate, deflector, connecting plate and front plate, said front plate, bottom base plate, deflector and connecting plate are fixed connection in proper order, both sides of front plate are fixed connection with vertical ear plate. According to the torrent groove, when the torrent groove is installed, the slope groove is formed in the slope slope of the road slope, the torrent groove is placed into the slope groove, the upper edge of the torrent groove is attached to the slope slope, the pressing plate is horizontally arranged on the side edge of the road subgrade, and after asphalt is laid on the road subgrade, the upper surface of the pressing plate can be covered with the asphalt; the pressing plate can be fixed between the asphalt layer and the road subgrade, a sandwich type sealing layer is formed among the asphalt layer, the pressing plate and the subgrade, the pressing plate is located in the middle layer and prevents rainwater from infiltrating to the side slope along the joint of the side slope and the subgrade, the upper edge can improve the overall flexural rigidity, and water flow infiltrating from a gap between the slope of the side slope and the side wall of the torrent groove is reduced.

The present application aims at the pain points of subgrade settlement, pavement cracking and green maintenance difficulties caused by strong loess collapsibility and easy cracking and failure of traditional rigid anti-seepage layer in central median strip of loess area, and constructs an integrated collaborative anti-seepage structure of "base soil improvement layer + flexible composite anti-seepage core layer + gap self-repairing sealing layer + ecological drainage buffer layer". The structure takes sodium bentonite as the core functional material, utilizes its multiple characteristics of swelling when encountering water, thixotropic sealing, flexible anti-cracking and ion exchange to improve soil, realizes the modification of anti-collapsibility of base loess and the physical and chemical double blocking of subsurface water infiltration. The ecological drainage buffer layer can not only quickly dredge accumulated water, but also can bear green vegetation, realizing the integration of engineering protection and ecological landscape. The present application has stable structure, seepage self-repairing function, convenient construction and green durability, and can long-effectively solve the seepage and collapsibility diseases of central median strip of expressway in loess area, and has great value for improving the durability of highway and road environment.

The invention discloses a gob-side entry retaining supporting method, which belongs to the technical field of roadway surrounding rock control, and comprises the following steps: arranging a supporting structure at a top plate position of a gob-side entry retaining, so that the rigidity of the top plate of the gob-side entry retaining is greater than that of a top plate on a gob side; a plurality of inclined top cutting holes are formed in the side portion, close to one side of the gob-side entry retaining, of the gob-side entry retaining, and the top cutting holes face a gob top plate and extend to the preset depth; blasting objects are arranged in the top cutting holes, the multiple top cutting holes are detonated in a segmented and delayed mode to form continuous presplitting gaps, and a goaf top plate close to the gob-side entry retaining area is guided to directionally collapse; a supporting frame is erected in the area below the top cutting hole in the gob-side entry retaining, and the two ends of the supporting frame abut against a top plate and a bottom plate of the gob-side entry retaining correspondingly to form a top plate support; and a sealing layer is laid with the supporting frame as a framework, so that sealing isolation of the gob-side entry retaining and the goaf is formed. The gob-side entry retaining sealing performance can be improved.

The utility model relates to the technical field of roads and bridges, in particular to a road and bridge guard plate stand column structure convenient to maintain. The device comprises a column body part, a supporting part and a wiring box, the column body part is used for supporting the road and bridge protection plate; the supporting part is constructed to be of an integrated structure with the column body part, a plurality of wiring grooves are formed in the supporting part, a plurality of inserting rods are further embedded in the groove bottoms of the wiring grooves, one end of each inserting rod is located in the corresponding wiring groove, and an inserting block is arranged at the end of each inserting rod; the bottom of the stringing box is provided with an insertion hole for the insertion of the insertion rod and a flexible sealing layer, the insertion hole is internally provided with an insertion groove which can be clamped with the insertion block, and the stringing box is also provided with a stringing notch for the passing of a cable; when the plugging block and the plugging groove form clamping connection, contact pressure is formed between the flexible sealing layer and the wiring groove. The vertical column is good in structural integrity and relatively convenient to maintain, and the original structure of the vertical column cannot be damaged during maintenance.

The utility model relates to the technical field of road engineering, and discloses an asphalt pavement repairing structure which comprises a repairing shell, the inner bottom wall of the repairing shell is fixedly connected with a repairing base body layer, the top of the repairing base body layer is fixedly connected with a filler plate, the top wall of the filler plate is provided with a plurality of filler holes, and the filler holes are communicated with the repairing base body layer. A frame is fixedly connected to the top of the filler plate, a plurality of reinforcing ribs are fixedly connected to the front side of the inner wall of the frame, a plurality of high-strength grid plates are fixedly connected to the left side of the inner wall of the frame, a silicone sealing layer is fixedly connected to the top wall of the frame, and a fixing frame is fixedly connected to the top of the silicone sealing layer. According to the utility model, through the connection of the plurality of reinforcing ribs and the high-strength grid plates, the use strength of the pavement is improved, so that under the filling of the silicone sealing layer and the modified asphalt filler, the sealing effect can be effectively improved, the condition that the pavement cracks in a low-temperature environment is reduced, and the problem that the performance of the pavement is still reduced is avoided.

The application discloses a shallow-buried coal mine soft rock roadway compressed air energy storage bearing sealing structure and a construction method, and belongs to the technical field of compressed air energy storage. The shallow-buried coal mine soft rock roadway compressed air energy storage bearing sealing structure is arranged in the surrounding rock of a shallow-buried coal mine soft rock roadway, is a hollow cylindrical structure, and an internal space is used for storing compressed air; the compressed air energy storage bearing sealing structure sequentially comprises a first steel sealing layer, a first sliding layer, a first reinforced concrete lining layer, a second sliding layer, a second steel sealing layer, a third sliding layer and a second reinforced concrete lining layer from the center of the roadway to the surrounding rock of the side wall of the roadway, and the second reinforced concrete lining layer is connected with an external surrounding rock layer. The application can solve the bottleneck problems of safety, sealing difficulty and high cost of compressed air energy storage of shallow-buried coal mine soft rock underground space, and provides technical support for efficient, economic and safe utilization of a large number of abandoned shallow-buried coal mine soft rock underground space resources.

This disclosure relates to a method of preparing a scrub sealer. The method includes preparing an asphalt emulsion, and preparing a premixture of at least two different types of aggregate. The method also includes passing the asphalt emulsion and the premixture through a mixer (26) to form the scrub sealer.

The utility model relates to mobile wheel technical field provides a kind of Mecanum wheel, each roller assembly is installed on connecting shaft by shaft sleeve, it is convenient for roller assembly to rotate around the axis of connecting shaft;Since the both ends of roller assembly respectively exceed the outside of corresponding shaft sleeve, therefore, the sealing body of sealing assembly can be sealed between roller assembly and connecting shaft, and with shaft sleeve abuts, realize the effective sealing of roller assembly end part.Due to the double-layer structure of annular frame and sealing sleeve, the sealing body is provided with structural strength, avoid the gap between sealing body and roller assembly due to the weak strength of sealing body in the process of rotation, it is favorable to strengthen the sealing performance of sealing body, improve the effect of oil leakage prevention.In addition, the end cover of sealing assembly abuts in the end part of roller assembly, equivalent to sealing body is enclosed between roller assembly and connecting shaft, forms additional sealing layer.In this way, improve sealing, reduce the probability of oil leakage phenomenon, ensure that walking pavement is neat.

The invention provides a sealing layer structure for a CO2 water-based foam cement soil mixing pile and a construction method of the sealing layer structure, the CO2 water-based foam cement soil mixing pile is used for reinforcing a soft roadbed foundation, and a GCL bentonite pad, a cement soil layer, a sealing film and a mattress layer are sequentially arranged at the top of a construction area of the CO2 water-based foam cement soil mixing pile from bottom to top. During construction, a GCL bentonite pad is laid on a leveled roadbed base, then a cement soil layer is laid on the GCL bentonite pad, then the CO2 water-based foam cement mixing pile is constructed, and after pile construction is completed, a sealing film is laid on the cement soil layer and the pile top, and a mattress layer is constructed. The composite structure of the GLC bentonite pad, the cement soil layer and the sealing film is adopted for sealing the surface of the large-area soft foundation, and the effect of preventing CO2 from escaping for a long time in the construction period and the road operation period can be achieved.

A colored asphalt-based sealcoat composition comprising asphalt emulsion, water, extender, polymer, clay, colorant, and titanium oxide particles is provided. In some embodiments, a highly solar reflective, colored asphalt-based sealcoat composition comprising titanium oxide particles is provided. In some embodiments, a colored asphalt-based sealcoat composition comprising titanium oxide particles capable of reducing surface temperatures of asphalt treated with the composition is provided. In some embodiments, a colored asphalt-based sealcoat composition comprising titanium oxide particles capable of reducing atmospheric pollutants is provided. In some embodiments, methods for preparing colored asphalt-based sealcoat compositions as well as their application to asphalt surfaces is provided.

The invention relates to the technical field of application of ethylene-propylene-diene monomer rubber, in particular to a high-wear-resistance antiskid carborundum-reinforced EPDM safety brick and a preparation process thereof, and the preparation process comprises the following steps: S1, pre-pressing and molding a matrix; s2, preparing an interface sealing layer; s3, compounding a carborundum functional layer; and S4, carrying out hot-pressing integrated molding. According to the high-wear-resistance antiskid emery-reinforced EPDM safety brick and the preparation method thereof, optimization of components and a process is combined, particularly, the emery composite slurry is introduced, and a pressing process is optimized, so that the high-wear-resistance antiskid emery-reinforced EPDM safety brick is obtained.

The utility model relates to the technical field of road engineering, and discloses an assembly type road surface snow melting device which comprises a modularized snow melting unit, the modularized snow melting unit comprises a pervious concrete layer, a heating layer, an elastic sealing layer and a lower-layer heat preservation base plate which are arranged from top to bottom, a heating wire is arranged in the concentric circle groove, a groove is formed in one side of the modular snow melting unit, a sealing connecting assembly is clamped in the groove and comprises a U-shaped rubber sealing strip, and a T-shaped mortise and tenon fastener is arranged on one side of the U-shaped rubber sealing strip; the modularized snow melting unit is electrically connected with a humidity sensor and a heating power adjusting device; through the connection of the T-shaped mortise and tenon fasteners and the contact connection of the heating layer and the upper and lower side layers, the rapid replacement and maintenance of the device are realized.

The application discloses a processing method of a slag discharge port of a pulverized coal gasifier and a blocking prevention structure thereof, and comprises the following steps: step A, cutting the inner wall of the slag discharge port through a cutting machine; step B, welding a nickel-based steel plate smaller than the cutting object on the inner wall of the slag discharge port to form a sealing layer of the inner wall of the slag discharge port, so that the inner diameter of the slag discharge port is expanded to 1100mm-1200mm; and step C, polishing the surface of the nickel-based steel plate to keep smooth; the inner diameter of the slag discharge port is expanded by cutting the inner wall of the slag discharge port, so that the risk of slag blocking during the slag discharge of the gasifier is avoided, and the stable operation of the gasifier is ensured; the device can be automatically dredged by being provided with a mounting ring block, a first protruding block, a dredging assembly, a transmission assembly and a driving assembly, so that the good slag discharge effect is ensured, the structure is simple, the operation is stable, and the labor cost is reduced.

The utility model relates to a lining structure of a high-pressure gas storage cavern. The lining structure comprises an elastic sealing layer, a self-repairing concrete lining layer, a buffer layer, a drainage layer and a surrounding rock supporting layer which are sequentially arranged from inside to outside. Microcapsules are doped into the self-repairing concrete lining layer, a microcapsule repairing agent releases the repairing agent through capsule breakage to fill cracks, fine-grained asphalt concrete is adopted in the buffer layer, nickel-titanium alloy wire mesh pieces are doped, the cracks can be filled with fine particles in the fine-grained asphalt concrete to a certain extent, and the crack repairing effect is improved. The nickel-titanium alloy can balance the alternating load borne by the concrete lining layer in the inflation and deflation circulation process, the self-healing capacity of the concrete lining structure can be effectively improved, and the influence of cracks on the structure performance is reduced.

An asphalt-based sealcoat composition comprising high levels of titanium oxide particles is provided. In some embodiments, a highly solar reflective asphalt-based sealcoat composition comprising high levels of titanium oxide particles is provided. In some embodiments, an asphalt-based sealcoat composition capable of reducing pollutants comprising high levels of titanium oxide particles is provided. In some embodiments, methods for preparing asphalt-based sealcoat compositions as well as their application to asphalt surfaces is provided.

The invention discloses a micro-fluidic chip. Belongs to the technical field of detection consumables. The liquid injection hole, the liquid drop forming cavity, the liquid drop tiling cavity, the bubble gathering cavity and the liquid discharge hole which are communicated in sequence are jointly formed by the chip body and the sealing layer which are connected in the sealing manner; a guide surface for guiding the bubbles in the liquid drop tiling cavity to move towards the bubble gathering cavity is arranged on the inner wall of the liquid drop tiling cavity, so that the bubbles in the liquid drop tiling cavity can quickly move towards the bubble gathering cavity under the action of buoyancy; according to the micro-fluidic chip disclosed by the invention, the liquid drops are uniformly distributed in the liquid drop tiling cavity, are gathered or combined in the bubble gathering cavity and are directly discharged out of the micro-fluidic chip from the liquid discharge hole, so that the phenomena that bubbles remain in the liquid drop tiling cavity, the volumes of the bubbles are changed along with a high-low temperature treatment process to disturb the liquid drops, the adjacent liquid drops are mutually fused, and a detection result is influenced are avoided.

Asphalt sealcoats and asphalt shingle waste coatings for roofing materials are provided. A roofing material comprises a substrate having an exposed surface and an unexposed surface. An asphalt shingle waste coating is located on at least a portion of the exposed surface of the substrate. The asphalt shingle waste coating comprises an asphalt shingle waste, wherein the asphalt shingle waste comprises a waste asphalt and a limestone. An asphalt sealcoat is located on at least a portion of the asphalt shingle waste coating. The asphalt sealcoat is substantially free of the asphalt shingle waste. The asphalt sealcoat has a thickness of no greater than 50% of a thickness of the asphalt shingle waste coating.

The invention discloses a sealant in-situ curing forming and coating device and a sealant coating method thereof.The sealant in-situ curing forming and coating device comprises a rigid cavity base body, a rigid confinement cavity is formed in the rigid cavity base body, and a functional lining is tightly attached to the inner wall of the confinement cavity; a forming cavity penetrating through a body of the functional lining is formed in the functional lining, and a sealant flowing channel and a final forming space are formed by the forming cavity. The functional lining is used for storing and conveying an activating agent to the inner wall surface of the molding cavity so as to form a layer of uniform activating agent film and is used for triggering the colloid to be quickly cured at the contact interface of the colloid and the inner wall of the molding cavity after quantitative glue filling so as to form a sealing layer on the surface of the colloid molded by the molding cavity; the sealing layer constrains the outer contour and size of the final sealant structure. According to the automatic sealant coating device, high-quality, high-efficiency and high-stability automatic sealant coating is achieved through precise confinement forming, in-situ instant curing and reliable lossless demolding.

The utility model relates to the technical field of underground engineering waterproofing, and discloses a shield well permanent and temporary combination ring frame beam and side wall multi-stage grouting composite waterproof structure which comprises an underground diaphragm wall body, a permanent and temporary combination ring frame beam body and a side wall body. According to the shield well permanent and temporary combined ring frame beam and side wall multi-stage grouting composite waterproof structure, the PVC waterproof coiled material adopts the specification with the thickness larger than or equal to 1.5 mm, a three-stage continuous sealing layer is formed by the PVC waterproof coiled material, the polysulfide sealant and the water stop belt through the sweat soldering technology, the underground water permeation path is effectively blocked, the joint leakage rate is remarkably reduced, the galvanized grouting steel pipe is pre-buried in the DN specification, and therefore the construction efficiency is improved. The galvanized grouting steel pipe works cooperatively with the repeatable grouting pipe, through the multi-round grouting technology of single-liquid cement paste, full compaction of a cement paste filling layer is achieved, the leakage risk of structural joints and cavities is thoroughly eliminated, and the galvanized grouting steel pipe creatively has the dual functions of underground water guide and drainage in the construction period and permanent anti-seepage grouting. Precise regulation and control of the grouting process are achieved through a ball valve control system.

This invention relates to the field of chamber sealing technology, specifically to a trolley for laying rubber sealing layers in artificial chambers. It includes: at least one track, on which a laying trolley is mounted; and a roll of material, which is fixedly connected to the rear of the laying trolley. This invention achieves a compact layout at the front of the laying structure by placing the roll of material behind the laying trolley and integrating the laying wheels and pressure blocks at the front of the trolley via adjacent telescopic components. This effectively solves the problem of large end space occupation caused by the front placement of the loading wheels or excessive spacing between components in existing technologies. This layout makes the overall structure of the equipment more streamlined, improving maneuverability and operational flexibility in narrow chambers.

The application relates to the technical field of road surface crack repairing, in particular to a road and bridge crack repairing fixing structure, which comprises a road surface, cracks are present on the upper end surface of the road surface, a wave-shaped groove is arranged at the uppermost position of the cracks, a rectangular groove is arranged next to the lower side of the wave-shaped groove, extrusion plates are fixedly connected to the left side surface and the right side surface of the rectangular groove through screws, and one end of an asbestos net is fixedly connected to the front surface of the extrusion plate. The asbestos net fixed in the rectangular groove is used to divide the cracks into a filling layer and a sealing layer, so that the amount of epoxy resin can be saved, the sealing layer can be added above the epoxy resin, the filling layer can be waterproofed to a certain extent, the inner wall of the crack bottom end can be cleaned before the epoxy resin is filled, the adhesion strength of the filling layer is further improved, the stretch rod can be conveniently pulled out and pulled, the stretch rod can be repeatedly used, and cost is saved.

The application provides a method for preventing oxidation of a target material after sand blasting cleaning, which comprises the following steps: (1) after the target material after sand blasting is cleaned, a sealing layer is first arranged on the surface of the target material after sand blasting, the sealing layer is provided with switchable air exhaust holes and air holes, and a sealed target material is obtained; (2) the air exhaust holes and the air holes are opened, hot gas is introduced into the air holes, and the hot gas is exhausted from the air exhaust holes, so that the sealed target material is subjected to first drying; and (3) the air holes are closed, vacuum is continuously exhausted from the air exhaust holes, and heating is performed, so that second drying is performed, and an anti-oxidation target material is obtained. The application discards the conventional drying method of blowing, but establishes a closed space on the surface of the target material after sand blasting, and then performs blowing, so that the water removal effect is better, and the method can be applied to surfaces with smaller roughness after sand blasting, and the anti-oxidation performance is better.

The utility model belongs to the technical field of traffic marking lines, and discloses a novel road marking line structure which comprises a road marking line body, the road marking line body comprises a coating layer, a sealing layer and a bonding layer, the sealing layer is arranged between the coating layer and the bonding layer, the sealing layer is filled with a self-heating layer, and the self-heating layer is arranged between the coating layer and the bonding layer. The bottom of the self-heating layer is in contact with the bonding layer, the road marking main body is bonded and fixed on a road surface layer through the bonding layer, and self-luminous beads are embedded in the coating layer; the self-heating layer is arranged in the road marker line, when the road marker line needs to be removed, limestone in the self-heating layer is in contact with water to generate chemical reaction so as to generate heat, or iron powder polymer in the self-heating layer is in contact with oxygen in the air to generate chemical reaction so as to generate heat, so that the road marker line can be removed. And heat emitted by the self-heating layer is used for heating the bonding layer, so that the road marker line can be conveniently removed from the road surface.