A method of curing concrete

Abstract

The present application relates to a kind of concrete curing method, first step, roughening: form several grooves extending longitudinally on the surface of unhardened concrete, the grooves are parallel to each other;Second step, film covering: plastic film is covered on the surface of concrete;Third step, tensioning: several cables are inserted into the groove through the plastic film, cable extends along the direction of groove extension, plastic film is tensioned in the process of cable insertion into groove;Fourth step, watering: water is poured onto the plastic film;Fifth step, geotextile covering: geotextile is covered onto the plastic film to cover the concrete.The present application aims to provide a kind of concrete curing method, which can be cured without curing concrete, and the degree of tension of plastic film is good, solves the problem that existing concrete pavement needs to be cured after curing concrete.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of concrete moisture curing equipment, in particular to a concrete curing method. BACKGROUND

[0002] In the production process of concrete, the concrete needs to be cured. The commonly used way is to realize the moisture curing of the concrete by laying geotextile after spraying water through a film. Chinese patent application publication No. CN115717353A, published on February 28, 2023, entitled "A road construction method", the application includes the following specific steps: S1: cement stabilized macadam base construction: the cement stabilized macadam base is constructed in two layers, the lower layer is paved by a paver, and the double-wheel roller and the vibrating roller are rolled, the upper layer is paved by a paver, and the double-wheel roller and the vibrating roller are rolled after the light-wheel roller is stabilized, and the rubber-wheel roller is finally rolled and smoothed, and immediately after each rolling is completed, curing is carried out, and the compaction degree is checked at the same time; S2: laying and regular spraying of geotextile: the geotextile is laid on the road surface by a geotextile laying device to realize moisture curing of the road surface, reduce the trouble of manual laying of geotextile, reduce labor intensity, and improve work efficiency, the geotextile is covered for two hours, and then water is sprayed by a watering cart, the spray head of the watering cart is of a spray type to avoid damaging the base structure, the number of spraying times per day is determined according to the weather, and the surface of the cement stabilized macadam should be kept wet during the curing period, and the curing period should not be less than seven days; S3: asphalt concrete surface layer construction: the mixed asphalt mixture is transported to the construction site for asphalt paving work, and after the paving work of the asphalt mixture is completed, the asphalt surface is rolled, and the joints of the asphalt pavement are treated. In the prior art, in order to prevent the structure of the un-solidified concrete from being damaged during the laying of the geotextile, the concrete needs to be solidified for a period of time, and the watering cart is used to spray water after the geotextile is covered for two hours, that is, the concrete needs to be solidified to a certain extent, and then water is added for moisture curing, which has the problem of long process time, and too many procedures affect the curing efficiency. SUMMARY

[0003] The present application aims to provide a concrete curing method which can be cured without solidifying the concrete and has good plastic film tension, and solves the problem that the concrete pavement needs to be cured after solidification in the prior art.

[0004] The above technical problem is solved by the following technical scheme: a concrete curing method, characterized in that: first step, roughening: forming a plurality of grooves extending longitudinally on the surface of uncured concrete, the grooves being parallel to each other; second step, film covering: covering a plastic film on the surface of the concrete; third step, tensioning: inserting a plurality of cables into the grooves through the plastic film, the cables extending along the extension direction of the grooves, and the plastic film being tensioned in the process of inserting the cables into the grooves; fourth step, watering: watering the plastic film; fifth step, geotextile covering: covering the concrete with a geotextile to cover the concrete. The plastic film is covered first and then the geotextile is covered, so that there is no need to wait for curing (otherwise, the concrete will be bonded with the geotextile, making the geotextile unable to be removed, and the plastic film can be melted by hot asphalt without being removed, especially for a road surface with concrete as the bottom layer and asphalt as the surface layer, the plastic film can be melted by hot asphalt without being removed), thereby shortening the curing time. At this time, the moisture of the concrete is uniform, and the moisture is not lost, so there is no need to supplement water during curing. However, in the prior art, the concrete has been dried to a certain extent, the surface moisture is not enough, so water needs to be sprayed before the geotextile is covered, and because the water will be lost, the water needs to be sprayed multiple times. The present application does not need to spray water multiple times and does not need time intervals between processes, so that the surface roughening and moisture curing of the concrete can be completed at one time. The cables embedded in the grooves can tension the plastic film, thereby improving the flatness of the plastic film.

[0005] As a preferred embodiment, the cable is an electric heating wire, the concrete is provided with a water retaining flange on both sides perpendicular to the extension direction of the groove, and the water in the fourth step submerges the part of the concrete between the water retaining flanges; further comprising a fifth step, heat preservation: the cable is powered to heat the water on the plastic film and keep it at a set temperature. The heat preservation is convenient and energy-saving. The existing heat preservation is carried out in a heat preservation tent, and the volume of the tent needs to be controlled, which leads to a large amount of wasted energy.

[0006] As a preferred embodiment, the melting point of the plastic film is higher than the set temperature and lower than 100℃; further comprising a sixth step, removing the covering layer: the geotextile is collected for secondary use, the water on the plastic film is evaporated, the cable is powered to a temperature higher than the melting point of the plastic film, so that the plastic film is melted and burned off; a seventh step, adding a surface layer: asphalt is covered on the concrete to form an asphalt surface layer, the asphalt is filled into the grooves to form a rib, which plays a role in increasing the connection strength between the asphalt surface layer and the concrete layer. The plastic film is removed quickly, thereby shortening the curing time.

[0007] As preferred, the concrete curing is completed by a curing vehicle, the curing vehicle comprises a vehicle body and wheels supporting the vehicle body to walk, a crossbar is arranged on the vehicle body, a lifting mechanism driving the crossbar to lift and down, and a plurality of drawbars are connected to the crossbar, the lower end of the drawbar is beyond the crossbar, a film covering device, a spraying device, a wire laying device, a geotextile covering device and a wire pressing roller connected to the vehicle body through a swing arm are arranged on the vehicle body; during the curing, the plastic film is carried on the film covering device, the geotextile is carried on the geotextile covering device, the number of the wires is same as that of the drawbars, the lifting mechanism drives the crossbar to drop to the drawbar inserted into the concrete to the set depth, the one end of the plastic film, the one end of the geotextile and the one end of the wire are fixed to the one end of the concrete in the longitudinal direction, the wire is aligned with the drawbar one by one, the wire pressing roller is pressed above the wire and below the geotextile, the wire pressing roller is located at the rear of the vehicle body, the spraying device is turned on and the vehicle body is driven forward, the drawbar forms the groove on the concrete, the plastic film is covered on the concrete, the wire is pressed into the groove by the wire pressing roller through the plastic film, the water is sprayed on the plastic film, and the geotextile is covered on the plastic film and covers the wire. According to the technical scheme, the drawing, film covering, wire threading and water spraying can be completed at one time, the curing process is shortened, the curing efficiency is improved, the surface unevenness or the problem that some parts are not film cured due to manual paving can be reduced, the concrete moisture loss is reduced, and the problem that the concrete surface is loose and the sand is exposed or even cracks are generated due to strong wind is solved. The wire can be conveniently pressed into the groove.

[0008] As preferred, the film covering device comprises a film reel rotatably connected to the vehicle body and a driving motor driving the film reel to rotate, and the film reel is detachably arranged on the vehicle body. A specific technical scheme of the film covering device is provided.

[0009] As preferred, the vehicle body is provided with a first vertical beam and a second vertical beam arranged oppositely, the film reel is arranged between the first vertical beam and the second vertical beam, the driving motor is located outside the first vertical beam, the first vertical beam is provided with a rotating shaft mounting hole, an outer connecting flange is connected to the outside of the rotating shaft mounting hole through bolts, the shell of the driving motor is connected to the outer connecting flange, the power output shaft of the driving motor is arranged in the rotating shaft mounting hole and is sleeved with a sleeve, the sleeve and the power output shaft of the driving motor are synchronously rotated through the cooperation of the key and the key groove, one end of the film reel is supported by the inner connecting flange through the driving side bearing, the inner connecting flange and the first vertical beam are also fixed through bolts, one end of the film reel and the sleeve are also synchronously rotated through the cooperation of the key and the key groove, the other end of the film reel is supported in the open slot of the second vertical beam through the connecting seat bearing, and the pressing block pressing the connecting seat bearing is detachably connected in the open slot. According to the arrangement mode of the technical scheme, the plastic film is conveniently and quickly rotated. The connection is reliable.

[0010] As preferred, the film covering device comprises a film reel rotatably connected to the vehicle body, the vehicle body is provided with oppositely arranged first and second vertical beams, the geotextile covering device comprises a geotextile storage box and two unreeled reels, the two ends of the two unreeled reels are rotatably connected to the first and second vertical beams, the upper end of the geotextile storage box is provided with a first geotextile roller, a second geotextile roller is arranged between the first geotextile roller and the unreeled reel, the height of the first geotextile roller is greater than the height of the second geotextile roller, the geotextile passes through between the two unreeled reels after passing over the upper side of the first geotextile roller and the lower side of the second geotextile roller in sequence, the unreeled reel is located above the film reel, and the unreeled reel is connected together with the unreeled motor. The thickness of the geotextile is large, the winding mode of the shaft will make the volume of the wound geotextile roll large, the mass is also large, the requirement for the shaft is high, and the space occupation is large. The preferred embodiment adopts the form of the storage box, and the folded geotextile is placed in the geotextile storage box, which can ensure the convenience of unreeled and facilitate feeding. The technical scheme can tension the geotextile, which is beneficial to the laying after flattening.

[0011] As preferred, the spraying device comprises a horizontal water distribution pipe, a water storage tank and a water pump for conveying water in the water storage tank to the horizontal water distribution pipe, and a plurality of rear-spraying water distribution nozzles are arranged on the horizontal water distribution pipe. During use, water is sprayed by the water pump.

[0012] As preferred, the wire laying device comprises a plurality of wire reel supporting frames, the wire reel supporting frames are distributed along the horizontal direction, the wire reel supporting frame comprises a supporting block rotatably connected to the vehicle body, a horizontal shaft head rotatably connected to one end of the supporting block, a blocking pin penetratingly arranged at the other end of the horizontal shaft head, and a guide ring rotatably connected to the supporting block, a wire reel with a wire wound thereon is sleeved on the horizontal shaft head, the supporting block and the blocking pin block the two ends of the wire reel, and the end of the wire on the wire reel penetrates through the guide ring and is connected to the concrete. Each wire in the groove can be independently laid.

[0013] As preferred, the vehicle body is provided with two vertically distributed vertical columns, the inner side of the vertical column is provided with a vertical sliding groove, the two ends of the horizontal rod are slidably connected in the vertical sliding groove in a one-to-one correspondence, the upper segments of the two vertical columns are connected together through a horizontal beam, the lifting mechanism comprises a vertical guide rod rotatably connected to the horizontal beam at the lower end, a vertical screw rod threadedly connected to the horizontal beam at the lower end and penetrating through the horizontal beam, and a lifting motor driving the rotation of the screw rod, the upper end of the vertical guide rod penetrates through the horizontal beam, the upper end of the vertical screw rod is rotatably connected to the horizontal beam, and the lifting motor is fixed to the horizontal beam. The structure is compact. It can avoid the interference of the drawing rod with the vehicle walking when the drawing is not needed.

[0014] The present application has the advantages that the plastic film can be tensioned well and maintained automatically, the energy is saved during heat preservation, the plastic film is convenient to remove, the surface of the concrete can be roughened and maintained at one time, the steps are simple, the maintenance process is shortened, and the maintenance efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a side view schematic diagram of the maintenance vehicle in the present application;

[0016] Figure 2 is a front view schematic diagram of the present application;

[0017] Figure 3 is a partial enlarged schematic diagram of A of the present application; Figure 2

[0018] Figure 4 is a schematic diagram of the structure for roughening;

[0019] Figure 5 is a partial enlarged schematic diagram of B of the present application; Figure 4

[0020] Figure 6 is a schematic diagram of the connection relationship between the film reel and the vehicle body;

[0021] Figure 7 is a schematic diagram of the principle of the geotextile unwinding in the present application;

[0022] Figure 8 is a cross section of the concrete after the geotextile is laid;

[0023] Figure 9 is a partial enlarged schematic diagram of C of the present application; Figure 8

[0024] In the figure: concrete 1, groove 2, plastic film cover 3, cable 4, water 5, geotextile 6, water retaining flange 7, vehicle body 8, wheel 9, cross bar 10, marking bar 11, stand column 12, vertical sliding groove 13, cross beam 14, vertical guide rod 15, vertical screw rod 16, lifting motor 17, swing arm 18, wire pressing roller 19, film reel 20, driving motor 21, first vertical beam 22, second vertical beam 23, outer connecting flange 24, sleeve 25, driving side bearing 26, inner connecting flange 27, connecting seat bearing 28, pressing block 29, geotextile storage box 30, unwinding reel 31, first geotextile guide roller 32, second geotextile guide roller 33, unwinding motor 51, driving gear 34, driven gear 35, horizontal water distribution pipe 36, water storage tank 37, water pump 38, water distribution nozzle 39, wire reel support frame 40, horizontal suspension rod 41, support block 42, horizontal shaft head 43, blocking pin 44, guide ring 45, wire reel 46, end of cable 47, sharp head 48, blade edge 49, film reel 50. DETAILED DESCRIPTION​​​

[0025] The application will be further described in connection with the accompanying drawings and specific embodiments.

[0026] Referring to Figures 1 to 9 A concrete curing method, first step, roughening: forming several longitudinal extending grooves 2 on the surface of uncured concrete 1, the grooves are parallel to each other; second step, film covering: covering a plastic film 3 on the surface of the concrete; third step, tensioning: inserting several cables 4 into the grooves through the plastic film, the cables extend along the extending direction of the grooves, the plastic film is tensioned in the process of inserting the cables into the grooves; fourth step, watering: watering water 5 on the plastic film; fifth step, geotextile covering: covering geotextile 6 on the plastic film to cover the concrete. The cables are electric heating wires, the concrete is provided with water retaining flanges 7 on both sides perpendicular to the extending direction of the grooves, the water in the fourth step submerges the part of the concrete between the water retaining flanges; further comprising a fifth step, heat preservation: supplying power to the cables to heat the water on the plastic film and keep it at a set temperature. The melting point of the plastic film is higher than the set temperature and lower than 100℃; further comprising a sixth step, removing the covering layer: collecting the geotextile for secondary use, the water on the plastic film is evaporated, the cables are supplied with power to generate a temperature higher than the melting point of the plastic film to melt and burn the plastic film; a seventh step, adding a surface layer: covering asphalt on the concrete to form an asphalt surface layer, the asphalt is filled into the grooves to form convex ribs, which plays a role of increasing the connecting strength of the asphalt surface layer and the concrete layer.

[0027] The above concrete curing method is accomplished using a curing vehicle. The curing vehicle includes a body 8 and wheels 9 supporting its movement. The width of the body extends beyond the wheels on both sides, allowing the plastic film and geotextile to cover the water-retaining flanges when the wheels travel on the concrete between the two water-retaining flanges. The body is equipped with a crossbar 10, a lifting mechanism for driving the crossbar's raising and lowering, and several downward-extending guide rods 11 connected to the crossbar. The guide rods have pointed tips 48 at their lower ends and vertically extending cutting edges 49 on their front sides. The vehicle body is provided with two horizontally distributed columns 12. The inner side of the columns is provided with vertical sliding grooves 13. The two ends of the crossbar are slidably connected in the vertical sliding grooves. The upper sections of the two columns are connected together by a crossbeam 14. The lifting mechanism includes a vertical guide rod 15 whose lower end is connected to the crossbeam, a vertical screw rod 16 whose lower end is threaded to the crossbeam and passes through the crossbeam, and a lifting motor 17 that drives the screw rod to rotate. The upper end of the vertical guide rod passes through the crossbeam, and the upper end of the vertical screw rod is rotatably connected to the crossbeam. The lifting motor is fixed together with the crossbeam. The vehicle body is also equipped with a film covering device, a spraying device, a line laying device, a geotextile covering device, and a pressure roller 19 connected to the vehicle body via a swing arm 18, all located behind the crossbar. During maintenance, the plastic film is supported on the film covering device, the geotextile is supported on the geotextile covering device, and the same number of cables as the number of scribes are supported on the line laying device. The lifting mechanism drives the crossbar to descend until the scribes are inserted into the concrete to a set depth, so that one end of the plastic film, one end of the geotextile, and one end of the cable are fixed to one end of the longitudinal direction of the concrete. The cables and scribes are aligned one-to-one. The pressure roller presses on the cables and is located below the geotextile. The pressure roller is located behind the vehicle body. The spraying device is turned on and the vehicle body moves forward. The scribes form grooves in the concrete, the plastic film is covered on the concrete, and the cables are pressed into the grooves by the pressure roller through the plastic film. Water is sprayed onto the plastic film, and the geotextile covers the plastic film and the cables.

[0028] The film covering device comprises a film reel 20 rotatably connected to the vehicle body and a driving motor 21 for driving the film reel to rotate. The film reel is detachably arranged on the vehicle body. Specifically, the vehicle body is provided with a first vertical beam 22 and a second vertical beam 23 arranged oppositely, the film reel is arranged between the first vertical beam and the second vertical beam, the driving motor is arranged outside the first vertical beam, the first vertical beam is provided with a rotating shaft mounting hole, an outer connecting flange 24 is connected to the outside of the rotating shaft mounting hole through bolts, the casing of the driving motor is connected to the outer connecting flange, the power output shaft of the driving motor is arranged in the rotating shaft mounting hole and is sleeved with a sleeve 25, the sleeve and the power output shaft of the driving motor are synchronously rotated through the cooperation of the key and the key groove, one end of the film reel is supported in an inner connecting flange 27 through a driving side bearing 26, the inner connecting flange is also fixed to the first vertical beam through bolts, the one end of the film reel is synchronously rotated with the sleeve through the cooperation of the key and the key groove, the other end of the film reel is supported in an opening groove of the second vertical beam through a connecting seat bearing 28, and a pressing block 29 for pressing the connecting seat bearing is detachably connected in the opening groove. Before the film reel is assembled, the inner connecting flange and the one end of the film reel are integrally assembled, and the other end of the film reel is assembled with the connecting seat bearing. When the film reel is assembled, the one end of the film reel is inserted into the sleeve, then the inner connecting flange is bolted to the first vertical beam, at the same time, the connecting seat bearing on the other end of the film reel is clamped into the opening groove, and the detachable pressing block is bolted to the second vertical beam to press the connecting seat bearing. When the film reel needs to be removed for replacement, the detachable pressing block and the inner connecting flange are removed first, then the film reel is axially moved to separate the film reel from the sleeve, and then the film reel can be removed. Before installation, a film 50 is wound on the film reel. The geotextile covering device comprises a geotextile storage box 30 and two unwinding reels 31, and the geotextile is pulled by the two unwinding reels during use. The two ends of the two unwinding reels are rotatably connected to the first vertical beam and the second vertical beam, the upper end of the geotextile storage box is provided with a first cloth guide roller 32, a second cloth guide roller 33 is arranged between the first cloth guide roller and the unwinding reel, the height of the first cloth guide roller is greater than that of the second cloth guide roller, and the geotextile passes between the two unwinding reels after passing over the upper side of the first cloth guide roller and the lower side of the second cloth guide roller in sequence. The unwinding reels are located above the film reel, one end of one unwinding reel is connected to an unwinding motor 51, and the other end is provided with a driving gear 34. The driving gear is engaged with a driven gear 35 connected to the other unwinding reel. The geotextile storage box has a rectangular structure, and the geotextile is folded and aligned inside the geotextile storage box. The spraying device comprises a transverse water distribution pipe 36 connected to the vehicle body, a water storage tank 37 and a water pump 38 for conveying water in the water storage tank to the transverse water distribution pipe, and a plurality of water distribution nozzles 39 arranged on the transverse water distribution pipe and spraying water rearward.The wire releasing device comprises a plurality of wire reel supporting frames 40 distributed in the transverse direction, each wire reel supporting frame comprising a supporting block 42 connected to a transverse suspension rod 41 on the vehicle body at one end, a transverse shaft head 43 connected to the supporting block at one end, a blocking pin 44 passing through the other end of the transverse shaft head, and a guide ring 45 connected to the supporting block, a wire reel 46 with a wire wound thereon being sleeved on the transverse shaft head, the supporting block and the blocking pin blocking both ends of the wire reel, and the end 47 of the wire on the wire reel passing through the guide ring and being connected to the concrete.

[0029] In application, the film reel is loaded after winding the film, the water tank is filled with water, the geotextile is placed in the geotextile storage box, and the geotextile is wound around the upper side of the first geotextile roller, the lower side of the second geotextile roller and the upper side of the unwinding reel in sequence. When the vehicle body reaches the position of the concrete to be roughened, the crossbar is lowered to the depth required by the insertion of the drawbar into the concrete, and one end of the film, the geotextile and the wire are initially compressed on the surface of the concrete. When the maintenance vehicle advances (a power device can be arranged to walk by itself or be towed by other equipment), the film covering, wire installation, water spraying and geotextile covering are simultaneously completed.

Claims

1. A method for curing concrete, characterized in that, Step 1, Roughening: Form several longitudinally extending grooves on the uncured concrete surface, with the grooves parallel to each other; Step 2, Covering with film: Cover the concrete surface with a plastic film; Step 3, Tensioning: Insert several cables through the plastic film into the grooves, with the cables extending along the direction of the grooves, and tension the plastic film as the cables are inserted into the grooves. Step 4: Watering: Pour water onto the plastic film; Step 5: Covering with geotextile: The geotextile is placed over the plastic film to cover the concrete. Concrete curing is accomplished using a curing vehicle, which includes a vehicle body and wheels supporting its movement. The vehicle body is equipped with crossbars, a lifting mechanism for raising and lowering the crossbars, and several downward-pointing guide bars connected to the crossbars. The vehicle body also includes a film-covering device, a spraying device, a line-laying device, a geotextile covering device, and a pressure roller connected to the vehicle body via a swing arm, all located behind the crossbars. During curing, the plastic film rests on the film-covering device, and the geotextile rests on the geotextile covering device. The same number of cables as the number of slings are supported on the line-laying device. The lifting mechanism drives the crossbar to descend until the slings are inserted into the concrete to a set depth, so that one end of the plastic film, one end of the geotextile, and one end of the cable are fixed to the longitudinal end of the concrete. The cables and slings are aligned one-to-one. The pressure roller is pressed above the cable and below the geotextile. The pressure roller is located at the rear of the vehicle. The spraying device is turned on and the vehicle moves forward. The slings form the grooves in the concrete. The plastic film is covered on the concrete. The cable is pressed into the groove by the pressure roller through the plastic film. Water is sprayed onto the plastic film. The geotextile is covered on the plastic film and covers the cable.

2. The concrete curing method according to claim 1, characterized in that, The cable is an electric heating wire, and the concrete has water-retaining flanges on both sides perpendicular to the extension direction of the trench. In the fourth step, the water submerges the part of the concrete located between the water-retaining flanges. The fifth step is heat preservation: the cable is energized to heat the water on the plastic film and keep it constant at a set temperature.

3. The concrete curing method according to claim 2, characterized in that, The melting point of the plastic film is higher than the set temperature but lower than 100°C; the process also includes a sixth step, removing the covering layer: collecting the geotextile for reuse, evaporating the water on the plastic film, and electrifying the cable until the temperature generated by the cable is higher than the melting point of the plastic film, thereby melting and burning the plastic film; a seventh step, adding a surface layer: covering the concrete with asphalt to form an asphalt surface layer, and filling the trench with asphalt to form ribs, which increases the connection strength between the asphalt surface layer and the concrete layer.

4. A concrete curing method according to claim 1, 2, or 3, characterized in that, The film coating device includes a film roll rotatably connected to the vehicle body and a drive motor for driving the film roll to rotate. The film roll is detachably mounted from the vehicle body.

5. A concrete curing method according to claim 4, characterized in that, The vehicle body is equipped with a first vertical beam and a second vertical beam arranged opposite to each other. A film roll is mounted between the first vertical beam and the second vertical beam. The drive motor is located on the outside of the first vertical beam. The first vertical beam has a shaft mounting hole. An outer connecting flange is bolted to the outside of the shaft mounting hole. The housing of the drive motor is connected to the outer flange. The power output shaft of the drive motor passes through the shaft mounting hole and is fitted with a sleeve. The sleeve and the power output shaft of the drive motor rotate synchronously through a key and keyway. One end of the film roll is supported in the inner connecting flange through an active side bearing. The inner connecting flange is also fixed to the first vertical beam by bolts. One end of the film roll and the sleeve also rotate synchronously through a key and keyway. The other end of the film roll is supported in the opening slot of the second vertical beam through a connecting seat bearing. A pressure block for pressing the connecting seat bearing is detachably connected in the opening slot.

6. A concrete curing method according to claim 1, 2, or 3, characterized in that, The film covering device includes a film roll rotatably connected to the vehicle body. The vehicle body is provided with a first vertical beam and a second vertical beam arranged opposite to each other. The geotextile covering device includes a geotextile storage box and two unwinding shafts. The two ends of the two unwinding shafts are rotatably connected to the first vertical beam and the second vertical beam. The upper end of the geotextile storage box is provided with a first guide roller. A second guide roller is provided between the first guide roller and the unwinding shafts. The height of the first guide roller is greater than the height of the second guide roller. The geotextile passes through the upper side of the first guide roller and the lower side of the second guide roller in sequence and then passes between the two unwinding shafts. The unwinding shaft is located above the film roll and is connected to the unwinding motor.

7. A concrete curing method according to claim 1, 2, or 3, characterized in that, The spraying device includes a transverse water distribution pipe connected to the vehicle body, a water storage tank, and a water pump that transports water from the water storage tank to the transverse water distribution pipe. The transverse water distribution pipe is equipped with several water distribution nozzles that spray backward.

8. A concrete curing method according to claim 1, 2, or 3, characterized in that, The wire feeding device includes several winding reel support frames, which are distributed laterally. Each winding reel support frame includes a support block connected to the vehicle body at one end, a transverse shaft head connected to the support block at one end, a stop pin passing through the other end of the transverse shaft head, and a guide ring connected to the support block. In use, the winding reel with the cable wound is sleeved on the transverse shaft head, and the support block and stop pin block both ends of the winding reel. The end of the cable on the winding reel passes through the guide ring and is connected to the concrete.

9. A concrete curing method according to claim 1, 2, or 3, characterized in that, The vehicle body is provided with two horizontally distributed columns. The inner side of each column is provided with a vertical sliding groove. The two ends of the crossbar are slidably connected to the vertical sliding grooves one to one. The upper sections of the two columns are connected together by a crossbeam. The lifting mechanism includes a vertical guide rod whose lower end is connected to the crossbeam, a vertical screw rod whose lower end is threaded to the crossbeam and passes through the crossbeam, and a lifting motor that drives the screw rod to rotate. The upper end of the vertical guide rod passes through the crossbeam, the upper end of the vertical screw rod is rotatably connected to the crossbeam, and the lifting motor is fixed to the crossbeam.

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