83results about How to "Short maintenance time" patented technology

The invention relates to a high-performance polymer-cement-based composite repair material and a preparation method thereof, and the high-performance polymer-cement-based composite repair material comprises the following components by mass: 690-710 parts of cement; 130 to 150 parts of fly ash; 45 to 55 parts of silica fume; 200 to 210 parts of mixing water; 950 to 1050 parts of fine aggregate; 21-23 parts of a modified polymer; 9-10 parts of an expanding agent; 4-5 parts of a water reducing agent; 5-6 parts of modified fiber; and 0.16 to 0.18 part of a defoaming agent. The nano-toughened modified polymer and the modified fiber are used, the nano-modified polymer can improve the microstructure of the repair material, the modified fiber can limit shrinkage of the repair material and enhance the crack resistance of a matrix, the toughness and the mechanical property of the repair material can be effectively improved through the synergistic effect of the nano-modified polymer and the modified fiber, and it is guaranteed that the repair material does not crack in the early stage.

The invention relates to the technical field of water permeable brick maintenance, in particular to a building water permeable brick production and maintenance device which comprises a bottom plate and a maintenance box, the maintenance box is fixed to the top of the bottom plate, an adjusting mechanism is arranged at the top of the bottom plate, a maintenance mechanism is arranged in the maintenance box, and the adjusting mechanism comprises a supporting seat fixedly arranged at the top of the bottom plate; a motor is mounted in the supporting seat, a circular groove is formed in the top of the supporting seat, a water pump is started, then water in the curing box enters a spray head from a water pipe, and then the water is sprayed to the water permeable bricks on the top of the conveying belt from the spray head, so that water spraying curing of the water permeable bricks is facilitated; the sprayed water flows to the bottom of the curing box from the first water leakage hole and the second water leakage hole and is filtered by the filter screen, and the filtered water enters the spray head again through the water pipe to be sprayed out under the action of the water pump, so that the cyclic utilization of the water is favorably realized.

The invention discloses a calcium carbonate phase change cementing material hardened body as well as a preparation method and application thereof. The preparation method of the calcium carbonate phase change cementing material hardened body comprises the following steps: firstly, uniformly mixing vaterite and a crystal form regulating agent, then adding water, stirring to obtain slurry, after the slurry is formed, carrying out radio frequency heating maintenance with the radio frequency heating frequency of 300KHz-300GHz and the power of 500-900W, and after the radio frequency heating maintenance, carrying out vacuum drying to obtain the calcium carbonate phase change cementing material hardened body. The calcium carbonate phase change cementing material hardened body is prepared. Compared with steam curing, the mode of curing the calcium carbonate phase-change cementing material through radio frequency heating can better promote accumulation of the calcium carbonate phase-change cementing material precursor and conversion of part of the calcium carbonate phase-change cementing material precursor to target mineral aragonite, enables an interface to be fused and bonded, remarkably improves the compressive strength, and is worthy of popularization and application.

The invention discloses a feeding, chopping and overhauling posture adjusting device and a silage harvester. Comprising a mounting rack, tire assemblies arranged on the mounting rack, a chopping assembly rotationally arranged on the mounting rack and located between the tire assemblies, and a lifting assembly hinged to the mounting rack and the chopping assembly. The pushing assembly is hinged to the first side portion of the upper end of the chopping assembly and the first side portion of the upper end of the feeding assembly, and the first sliding assembly is arranged on the first side portion of the lower end of the chopping assembly and hinged to the first side portion of the lower end of the feeding assembly. The feeding assembly and the chopping assembly are adjusted to be in the optimal maintenance posture, so that rapid maintenance is achieved, only the maintenance posture needs to be adjusted during maintenance, maintenance operation is simple, the maintenance time is shortened, the maintenance efficiency is improved, and the maintenance cost is reduced. And sufficient maintenance space is ensured, the maintenance efficiency is high, and the maintenance time is short.

The invention relates to a preparation method of a modified waste concrete recycled aggregate, which comprises the following steps: crushing waste concrete, screening the crushed waste concrete with a proper particle size to serve as a raw material of the recycled aggregate, washing with a shaking sieve to remove part of edges and corners about to fall off, and carrying out gelation reaction by using modified solutions such as nano silicon dioxide and water-soluble silicate to obtain the modified waste concrete recycled aggregate. According to the invention, fine pores on the surfaces of concrete particles are blocked and repaired, so that the structure is complete and compact, the mechanical strength of the aggregate is enhanced, the porosity and the water absorption rate are reduced, and the water absorption and the mechanical strength are further reduced through phenolic resin coating. The modified waste concrete recycled aggregate is mixed with cement, zeolite powder and the like, the mixture is pressed into a blank, and the artificial stone with excellent mechanical properties and low water absorption is obtained after carbonization curing. The method provided by the invention has good application prospects and environmental protection significance.

The invention relates to the technical field of building material production equipment, and discloses an automatic high-temperature and high-pressure curing device for a bamboo fiber foaming cement heat preservation external wall panel, which comprises a curing box and a steam generator communicated with the curing box through a steam conveying pipe, a lifting mechanism is slidably arranged at the upper ends of one set of rails, and a rotary maintenance mechanism is fixedly mounted at the upper end of the lifting mechanism. Through the lifting mechanism, the rotary curing mechanism containing the bamboo fiber foaming cement heat preservation external wall panel can be automatically fed into the curing box; when a driving mechanism in the rotary curing mechanism drives a rotary placing frame to slide along an annular sliding groove, the rotary placing frame rotates, so that all parts of the bamboo fiber foaming cement heat preservation external wall panel are in full contact with water vapor, the uniformity and consistency of curing of the bamboo fiber foaming cement heat preservation external wall panel are guaranteed, and the curing efficiency of the bamboo fiber foaming cement heat preservation external wall panel is improved. The quality is good; the maintenance time can be effectively shortened, and the maintenance efficiency is improved.

The present invention discloses a process chamber, semiconductor process equipment and maintenance method, wherein the process chamber comprises a chamber body, a base arranged in the chamber body and a dielectric window arranged on the top of the chamber body, the process chamber further comprises a pressure ring, a cleaning disk and a liquid inlet pipeline, the base is used to carry the cleaning disk during cleaning and maintenance, the cleaning disk is provided with a plurality of spray holes penetrating along the thickness direction thereof, the pressure ring is used to fix the cleaning disk to the base, a gap is provided between the cleaning disk and the base, the gap is connected to the liquid inlet pipeline and the spray holes, the liquid inlet pipeline is used to introduce cleaning liquid, the cleaning liquid can be sprayed through the plurality of the spray holes to cover at least part of the dielectric window. The above scheme can solve the problem of long maintenance time of semiconductor process equipment.

The utility model relates to a wheel technology field, concretely relates to a detachable wheel, including tyre, the inner ring of tyre is equipped with wheel cover, and tyre and wheel cover outer circle seal setting form a plenum, and the inner ring of wheel cover is evenly arranged with countersunk mounting hole along the circumference, and wheel cover is equipped with detachable wheel hub, and detachable wheel hub includes wheel hub outer circle cooperation installation with the inner ring of wheel cover, and wheel hub outer circle is equipped with wheel hub hub core, and the between wheel hub outer circle and wheel hub hub core along the circular center radiation spreads apart a plurality of spoke, and the between two adjacent spokes is equipped with detachable assembly cooperation with countersunk mounting hole. Independent plenum, will not leak in the wheel cover and wheel hub dismounting process. Wheel hub is through detachable assembly and realizes detachable, when wheel hub outer circle, wheel hub hub core or spoke etc. component appears damage, need not to replace whole wheel, only need to dismount and replace damaged wheel hub part, dismount convenient, greatly shorten the maintenance cost and maintenance time short.

The utility model belongs to the field of ore dressing relates to a kind of flotation machine ore separation box, including T-shaped partition, the T-shaped partition is installed in the ore separation box, and the ore separation box is divided into two parts of feed tank and distribution tank;The T-shaped partition includes vertical plate perpendicular to the bottom surface of the ore separation box and horizontal plate parallel to the bottom surface of the ore separation box and fixed on the top of the vertical plate;The length of the vertical plate is equivalent to the length of the ore separation box, the height of the vertical plate is not more than 1 / 2 of the height of the ore separation box;The length of the horizontal plate is equivalent to the length of the ore separation box.The technical scheme of the application can delay the flow rate of ore pulp, which is beneficial to uniform ore separation and improves the flotation effect;At the same time, the ore can be ground, and the bottom plate after modification will not be impacted by the ore pulp.

The invention relates to a double-cell horizontal crucible gasification furnace and a use method thereof, and belongs to the technical field of metal smelting, and the double-cell horizontal crucible gasification furnace is characterized in that two production devices are symmetrically arranged and share a partition wall in the middle; each set of device is provided with a combustion system, and a zinc ingot melting crucible in each set of device is communicated with a transfer crucible through a flow guide pipe I and then communicated to an evaporation crucible through a flow guide pipe II; the melting crucible and the transfer crucible are in a vertical cylindrical shape, the evaporating crucible is in a horizontal cylindrical shape, and the evaporating crucible is connected to the condenser through a gas guide pipe after being closed; the respective combustion systems are arranged on the two sides of the shared partition wall; the transfer crucible is provided with an observation opening. When the device is used, the device is installed, and the evaporation crucible is filled with crude zinc; a gap between the evaporation crucible and the peripheral wall is built, the inner layer is made of high-alumina bricks, and the outer layer is made of insulating bricks; sealing a furnace door of the evaporation crucible; after materials are fed into the zinc ingot melting crucible and the temperature is increased, the liquid level condition of zinc water in the transfer crucible is observed, and zinc deficiency, excessive zinc or large internal pressure are judged, so that process parameters are adjusted.

The invention discloses a device and method suitable for pile foundation bearing capacity detection, and belongs to the technical field of pile foundation bearing capacity detection.The device comprises a soil body, a pile foundation body is arranged in the soil body, the pile foundation body comprises a reinforcement cage and connecting ribs distributed on the reinforcement cage at equal intervals in a surrounding mode, and supporting assemblies are arranged on the periphery of the pile foundation body; the upper end of the pile foundation body is provided with a bearing capacity testing assembly, the bearing capacity testing assembly comprises a bearing structure and a bearing top plate at the upper end of the bearing structure, and the bearing top plate is provided with a jack. The pile foundation bearing capacity test method has the advantages that the pile foundation bearing capacity test device can be constructed at the pile top after being maintained to reach the design strength, is convenient to disassemble and can be repeatedly used, the problem of steel bar damage when concrete is disassembled in a traditional mode is solved, the flexibility of the pile foundation bearing capacity test is improved, the time is shortened, and the test cost is reduced.

This invention relates to the field of resource utilization technology for waste soil and discloses a method for combined lithium slag and carbide slag electroosmosis reinforcement of waste soil. The method involves mixing lithium slag and carbide slag in a specific ratio with waste soil to form modified soil with low moisture content, which is then cured using an electroosmosis device to achieve rapid reinforcement and resource utilization of the waste soil.

The invention discloses a concrete venture and creativity product manufacturing process which comprises the following preparation raw materials in parts by mass: 100 parts of water, 300-400 parts of cement and 130-170 parts of sand. The water, the cement and the sand are added into the mold according to the mass ratio and stirred for the first time, the speed of the first time of stirring is 200-500 r / min, and stirring is conducted for 3-5 min; a water reducing agent and a defoaming agent are added according to the mass of the cement in the mold, the mass ratio of the water reducing agent to the cement is 1: (90-100), and the mass ratio of the defoaming agent to the cement is 1: (100-150); stirring for the second time at the speed of 150 to 300 r / min for 2 to 4 minutes; after the second-time stirring is completed, standing is conducted for 1-2 min, then third-time stirring is conducted, the third-time stirring speed is consistent with the second-time stirring speed, and the third-time stirring time is 1-2 min; pouring the creative product at the first time after the third stirring is completed; through the accurate raw material ratio and the repeated stirring technology, it is guaranteed that the concrete creative product is smooth in surface, clear in character and sufficient in strength, and the aesthetic and practical requirements of the creative product are met.

The invention discloses a liquid leakage maintenance method for a cathode roller for electrolytic copper foil, belongs to the technical field of cathode roller repair, can effectively avoid the risk caused by hydrogen in the roller when the cathode roller is repaired by using a trepanning method, improves the overall safety when the cathode roller is repaired, and meanwhile, improves the safety of the cathode roller by adopting welding repair. And rapid and effective repair of the cathode roller can be realized. The liquid leakage maintenance method of the cathode roller for the electrolytic copper foil comprises the steps that residual copper sulfate, oxide skin and the like on a titanium side plate are cleaned through laser, vent holes in the two sides of a shaft head of the cathode roller are opened, then inert gas is introduced to replace hydrogen, a manhole is formed in the side plate, rust removal treatment is conducted on the interior of the cathode roller, weight balancing is conducted on the cathode roller, and the balance degree of the cathode roller is guaranteed. A milling machine is used for machining a titanium plate, a copper plate and a steel plate into a titanium circular plate, a copper circular plate and a steel circular plate, automatic welding equipment is used for sequentially welding the steel circular plate, the copper circular plate and the titanium circular plate, the defect positions of side plates are manually welded, and after liquid leakage repair is completed, the process is transferred to other processes.

The invention provides a rapid recovery material for a cement stabilized macadam base. The rapid recovery material is prepared from the following raw materials: cement, macadam, medium-coarse sand, zeolite powder, a naphthalene water reducer, an expanding agent and emulsified asphalt in a mass ratio of (160-385): (1030-1088): (512-687): (22-58): (1-2): (4-8): (0-28) (the water-binder ratio is 0.5-0.65). The mortar has the advantages of high fluidity, fast development of early strength, high compressive strength, high breaking strength, high freezing resistance and good adhesion performance of new and old base layer interfaces, and the construction process is simple.

The invention discloses a filling method and a filling device for a single fixed cone lining plate of a gyratory crusher, and relates to the technical field of gyratory crusher repair. According to the filling device, the falling fixed cone lining plate is fixed in a wedge-welding-filling mode, the possibility that the lining plate falls again is reduced, the maintenance time is short, the problem of poor fluidity of the epoxy resin backing can be solved by compressing air into the tank body through the filling device, the filling speed of the epoxy resin backing is increased, and the filling efficiency of the epoxy resin backing is improved. And the workload and personnel allocation for repairing the fallen fixed cone lining plate are reduced.

The invention provides a low-moisture curing dealcoholization type silicone sealant and a preparation method thereof. The low-moisture curing dealcoholization type silicone sealant is prepared from the following components in parts by mass: 100 parts of alpha, omega-dihydroxy polydimethylsiloxane, 70-140 parts of nano calcium carbonate, 3-10 parts of dimethyl silicone oil, 1-4 parts of modified silicone oil, 3-10 parts of a composite cross-linking agent, 0.5-2 parts of a coupling agent A, 0.5-1.5 parts of a coupling agent B and 2-6 parts of a titanate catalyst, the coupling agent A is one or a mixture of more of gamma-glycidyl ether oxypropyl trimethoxy silane, gamma-glycidyl ether oxypropyl triethoxy silane, gamma-aminopropyl trimethoxy silane and gamma-aminopropyl methyl diethoxy silane, and the coupling agent B is one or a mixture of more of gamma-glycidyl ether oxypropyl trimethoxy silane, gamma-glycidyl ether oxypropyl triethoxy silane, gamma-aminopropyl trimethoxy silane and gamma-aminopropyl methyl diethoxy silane; the coupling agent B is one or a mixture of two of an epoxy silane oligomer and an amino silane oligomer, the structure of the coupling agent B is as shown in formulas I, II and III, and the mass ratio of the # imgabs0 # coupling agent A to the coupling agent B is (0.9-1.3): 1. The silicone sealant prepared by the method can be quickly cured, the curing time is shortened, and the construction efficiency in winter is improved.

The utility model relates to a combined prefabricated U-shaped beam winter construction maintenance system, and aims to solve the problems that a U-shaped beam is long in winter maintenance time, low in concrete strength and easy to crack. According to the technical scheme, the device comprises a pouring formwork and a U-shaped beam body poured on the inner side of the pouring formwork, the pouring formwork is in a U shape similar to that of the U-shaped beam body, and the pouring formwork is composed of a bottom formwork, two side edge formworks symmetrically and fixedly installed on the two sides of the bottom formwork and two top formworks fixedly installed at the top ends of the side edge formworks respectively; the U-shaped beam body comprises a bottom plate, two side plates symmetrically and fixedly arranged on the two sides of the bottom plate and two top plates fixedly arranged at the top ends of the side plates respectively. An electric heating plate is arranged on the inner side of the pouring template; in the maintenance process, the temperature and humidity of the beam body can be conveniently monitored and controlled, the maintenance time is effectively shortened, the strength of the beam body is improved, and the cracking risk is reduced.

This utility model relates to the field of cooling tower technology and discloses a water turbine-driven fillerless spray cooling tower, including a casing. A frame is fixedly connected to the lower surface of the casing. A water inlet pipe is fixed to the inner wall of the frame. One end of the water inlet pipe is connected to a filter pipe via a flange. A filter assembly is installed inside the filter pipe. A connecting pipe is fixedly connected to the inner wall of the casing. A water distribution pipe is fixedly connected to the outer wall of the connecting pipe. A spray nozzle is installed inside the water distribution pipe. A connecting assembly is installed on the outer wall of the spray nozzle. The connecting assembly includes an upper clamping ring and a lower clamping ring. A groove is formed on the outer wall of the upper clamping ring. A locking block is slidably connected to the inner wall of the lower clamping ring. The locking block engages with the groove. A sliding button is fixedly connected to the outer wall of the locking block. In this utility model, operators can quickly disassemble the spray nozzles without tools. The operation is simple and significantly simplifies the cleaning process when the spray nozzles are clogged. The maintenance time is greatly reduced compared to the traditional bolt fixing method, making it especially suitable for operation in confined spaces.

The invention relates to an all-dimensional steam curing device for a precast beam. The all-dimensional steam curing device comprises a movable steam curing shed, a fixed steam curing shed and an outer steam curing device, the movable steam-curing shed is located at the construction front end of the fixed steam-curing shed and used for conducting preliminary steam-curing with a mold on the precast beam. The device comprises stand columns, rails, a movable frame, a movable steam-curing shed and spray heads. The fixed steam-curing shed comprises a main body structure, an internal steam-curing assembly and a ground rail; the internal steam-curing assembly comprises a double-rope rail, a steam-curing frame, a steam-curing seat, a filtering cover body, a third spray head, a collecting core body and a collecting head; a rope wheel is arranged in the middle of the steam-curing frame, steam-curing bases are fixed to the two sides of the steam-curing frame, third spray heads are fixedly arranged on the upper portions of the steam-curing bases, and filter covers are arranged on the lower portions of the steam-curing bases. Through combination of the movable steam-curing shed and the fixed steam-curing shed, all-directional curing of the precast beam in the steam-curing process is achieved, the steam-curing efficiency and the curing quality are improved, steam can be evenly distributed inside and outside the precast beam, and the problem of uneven steam-curing is effectively solved.

The invention relates to a B30 welded end cover suitable for a marine shell-and-tube condenser, which comprises a left end cover and a right end cover, and the left end cover and the right end cover adopt B30 plates to form a left cover body and a right cover body through cutting, folding, splicing and welding; a pipe connecting flange and an anti-corrosion block assembly are arranged on the left cover body, a rib plate is arranged in the left cover body, baffles are arranged on the two sides, and a square flange is welded to the bottom; the right cover body is welded with an anti-corrosion block assembly and a welding seat, a rib plate is arranged in the right cover body, baffles are arranged on two sides, and a square flange is welded at the bottom. The end cover is formed by cutting, folding, splicing and welding a B30 plate, the production process is simpler than that of a cast end cover, the production time is shortened, and the rejection rate is reduced. When the anti-corrosion block is replaced, a water drain valve of the shell-and-tube condenser can be opened firstly to drain all seawater, the anti-corrosion block is replaced under the condition that the end cover is not disassembled, and maintenance operation is convenient. A mechanical structure is adopted for sealing, the end cover can be stably used for a long time, and the reliability and the service life of the end cover are improved.

The invention discloses a reactive asphalt cold patch material and a preparation method thereof, and belongs to the technical field of energy-saving and environment-friendly building materials. The cold patch material is prepared from the aggregate, the mineral powder, the filler, the diffusion oil and the asphalt cold patch liquid according to a scientific ratio, and has the characteristics of energy conservation, environmental protection, high strength and durability, excellent adhesive property, construction convenience and high storage stability. The preparation method comprises the steps of aggregate drying, component weighing, stirring and mixing, sealed storage and the like. Comprehensive performance tests show that the cold patch material has excellent performance in the aspects of initial forming stability, compressive strength, durability and the like, is suitable for rapid repair of road pits, and provides an efficient solution for green traffic construction.

The invention relates to the technical field of petroleum drilling and logging, in particular to a petroleum comprehensive logging instrument cable erecting net groove and a net groove erecting method.The petroleum comprehensive logging instrument cable erecting net groove comprises a first steel wire rope, a second steel wire rope, a connecting piece, a first supporting rod and a second supporting rod, the cable erecting device is reasonable and compact in structure, cable erecting of the comprehensive logging instrument is quicker and more convenient, time and labor are saved in installation and disassembly, the cable erecting groove is installed and fixed, then cables and gas sample pipelines are placed in a net groove formed by the connecting piece and the steel wire rope one by one, then the clamping ring is installed, and cable erecting work can be completed; compared with the prior art that cable erection is completed by 4-5 persons in 3-4 hours, the cable erection efficiency is remarkably improved, the erection difficulty is greatly reduced, when the cable goes wrong, the cable does not need to be lowered to the ground from the high altitude, only the clamping ring needs to be loosened, the faulty cable is taken out and replaced, the maintenance is convenient, the maintenance time is short, the efficiency is high, and the maintenance cost is low. The heat dissipation effect of the cable placed in the net groove is better, and the stability of signal transmission is ensured.

The utility model discloses a bowl part cleaning device, which comprises a cleaning mechanism, a cleaning mechanism, a cleaning mechanism and a cleaning mechanism, wherein the cleaning mechanism is in butt joint with a long nozzle for cleaning; one end of the fixed base is used for being fixed to the ground to obtain support, and the other side of the fixed base is rotationally connected with a rotating mechanism; the rotating mechanism comprises a supporting plate fixedly connected with the cleaning mechanism, a safety screw and a spring pin assembly, and the safety screw and the spring pin assembly are both used for connecting the supporting plate and the fixed base so as to limit rotation of the rotating mechanism relative to the fixed base; when the cleaning mechanism is collided, the safety screw and the spring pin assembly are disconnected with the fixed base, so that the cleaning mechanism can rotate relative to the fixed base; and when the spring pin assembly resets and the safety screw fixes the supporting plate and the fixed base, the cleaning mechanism resets and is fixedly connected with the fixed base. The bowl cleaning device can be rapidly reset after being collided, the maintenance time is short, and the production process is not affected.

The invention relates to the technical field of lead screw lifters, discloses a lead screw lifter and solves the problem that lubricating oil cannot be fully utilized due to the fact that multiple dead corners exist in flowing of the lubricating oil in a conventional lead screw lifter. The annular mounting seat drives the inclined clamping ring and the fluctuating annular plate to rotate, so that the arc-shaped piston sleeve is driven by the annular mounting seat and the edge of the arc-shaped piston sleeve to do circulating fluctuating lifting motion, the arc-shaped piston sleeve is matched with the extrusion channel, lubricating liquid in the upper cavity is pumped into the middle cavity, the lubricating liquid in the middle cavity is pumped into the lower cavity, and the flowing effect is formed. And dead angles caused by flowing of lubricating oil are avoided, so that the lubricating oil is fully utilized.

This invention discloses a method for repairing asphalt pavement through pipeline excavation, comprising the following steps: S1: Milling and crushing the original road structure in layers to produce old asphalt pavement waste and old base course waste; S2: Excavating a trench downwards from the top surface of the original roadbed, laying a pipeline, and filling the trench to the top surface of the original roadbed; S3: Processing the old base course waste to form recycled aggregate, and then mixing it to form self-compacting concrete; S4: Forming a self-compacting recycled concrete base course above the backfill material; S5: Crushing and screening the old asphalt pavement waste into a first waste with a small particle size and a second waste with a large particle size; S6: Heating the first waste, adding the first aggregate, adding asphalt and a recycling agent, and mixing to form a medium-grained recycled asphalt mixture, forming a recycled medium-grained asphalt concrete surface layer; S7: Heating the second waste, adding the second aggregate, adding asphalt and a recycling agent, and mixing to form a fine-grained recycled asphalt mixture, forming a recycled fine-grained asphalt concrete surface layer, thus completing the pavement repair.

The invention belongs to the technical field of building materials, and particularly relates to a hydraulic binder for a mortar composition and a preparation method of the hydraulic binder. Compared with the prior art, the gelling system prepared from the overburnt magnesium oxide, the soluble phosphate and the appropriate retarder has the advantages that the water demand is extremely low, and the constructability is good; the technical problems that a magnesium phosphate gelling system is too fast in setting and hardening and the ceramic tile adhesive is difficult to construct are solved by adopting the dual effects of the retarder and the inorganic temperature regulator; polyacrylamide and water-absorbent resin are used as thickening agents, so that the ceramic tile adhesive is long in opening time and has the characteristics of rapid hardening and early strength, the maintenance period after ceramic tile adhesion is greatly shortened, and the construction period is greatly shortened; meanwhile, the interior of the binder is compact, a hydration product is resistant to water and high temperature, a magnesium phosphate gelatinization system is basically free of shrinkage and expansion in the long-age volume, the volume stability is good, and therefore the later laying safety of the ceramic tiles is improved.

The present invention discloses a prefabricated component, a prefabricated component and a cap connection structure, and a prefabricated component processing method. The prefabricated component includes a steel cage, and the upper ends of multiple longitudinal main bars of the steel cage are respectively connected to sleeves. The sleeve includes a sleeve body, and a through hole is provided at the center of the sleeve body. The through hole includes a stepped first hole, a second hole, and a head hole located between the first and second holes. The upper hole diameter of the first hole is larger than the lower hole diameter, the first hole diameter is larger than the second hole diameter, and the inner wall of the first hole is at least partially provided with a first internal thread. The head at the upper end of the main bar is clamped in the head hole, and the main bar passes through the second hole downward. The sleeve of the prefabricated component of the present invention is easy to connect and operate with the steel cage, and the processing process is environmentally friendly. The prefabricated component and the cap connection structure are easy to connect and operate, and can ensure that the main bars of the steel cage and the anchoring steel bars on the cap are connected without deviation.

The application relates to the technical field of bridge expansion joints and discloses a super-high-strength resin elastic concrete for bridge expansion joints, which comprises three components A, B and C, the component A is a main agent, the component B is a curing agent, and the component C is an aggregate; the main agent is a graphene modified epoxy resin; the weight ratio of the component A to the component B is 60-100:30-60; and the total weight of the component A and the component B accounts for 10-15% of the weight of the component C. The super-high-strength resin elastic concrete has high mechanical strength, rut dynamic stability and shear strength with interface concrete, is more durable in use, can absorb impact stress, can be exempted from a steel structure, greatly shortens construction time, has short maintenance time, has no obvious car jumping when a vehicle drives through the expansion joint, has lower noise and is easy to maintain.