An automatic curing system and method for mass concrete floor

Abstract

The application relates to an automatic curing system and method for a mass concrete bottom plate, and belongs to the technical field of concrete curing. The automatic curing system for the mass concrete bottom plate comprises a supporting device fixed on the surface of the concrete bottom plate, a film covering device arranged on the supporting device and attached to the surface of the concrete bottom plate, a circulating spraying device arranged on the supporting device and a driving device arranged on the supporting device; the driving device is connected with the film covering device and the circulating spraying device, and provides power for the operation of the film covering device and the circulating spraying device. The application has the advantages of good curing effect, small resource consumption and high automation degree.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of concrete curing, and in particular to an automatic curing system and method for a mass concrete bottom plate. BACKGROUND

[0002] Concrete curing refers to a process of promoting the hardening of a concrete structure after the concrete structure is poured, by controlling temperature, humidity and other conditions, to improve the bearing capacity, so that the concrete structure can reach the design strength and required performance. The concrete curing process plays a decisive role in improving the quality of the concrete building and is one of the indispensable links in modern construction.

[0003] During the curing of the concrete, the surface of the concrete structure needs to be kept moist and exposed to the atmosphere to improve the hardening speed. At present, the most common method of concrete curing is manual spraying, which uses a high-pressure water pump to spray the surface of the concrete structure to keep it moist, and then sprays a plastic film or covers a geotextile to maintain the temperature and slow down the loss of water. This method of concrete curing has many limitations when curing the mass concrete bottom plate structure: due to the large volume of the concrete structure, the manual spraying method is not only inefficient and wastes a lot of water, but also causes uneven spraying, different temperature and humidity, resulting in inconsistent hardening and shrinkage of the concrete structure, and cracking or other quality problems.

[0004] In view of the related technical background in the above, the existing manual spraying method of concrete curing can easily cause an increase in water consumption and quality problems such as cracking of the concrete bottom plate when curing the mass concrete bottom plate. SUMMARY

[0005] In order to improve the degree of automation of the curing process of the mass concrete bottom plate, reduce water consumption and improve the forming quality of the concrete bottom plate, the present application provides an automatic curing system and method for a mass concrete bottom plate.

[0006] In a first aspect, the present application provides an automatic curing system for a mass concrete bottom plate, which adopts the following technical solution:

[0007] An automatic curing system for a mass concrete bottom plate, comprising a support device fixedly arranged on the surface of the concrete bottom plate, a film covering device arranged on the support device and attached to the surface of the concrete bottom plate, a circulating spraying device arranged on the support device, and a driving device arranged on the support device; the driving device is connected to the film covering device and the circulating spraying device and provides power for the operation of the film covering device and the circulating spraying device.

[0008] By adopting the technical scheme, the support device fixedly installed on the concrete bottom plate supports and fixes other parts of the application, and can limit the application on the concrete bottom plate. The film device installed on the support device can slow down the transpiration of the curing water on the upper surface of the concrete bottom plate, slow down the water loss speed, reduce the required curing water amount per unit time, and evenly cover the sprayed curing water on the upper surface of the concrete bottom plate, avoiding the phenomenon that the setting and hardening speeds of the mass concrete bottom plate are different. The circulating spraying device can spray curing water on the concrete bottom plate, keep the temperature and humidity of the concrete bottom plate within a certain range, recycle and cyclically use the excess curing water, and reduce the water loss amount. The driving device provides power for the operation of the circulating spraying device and the film device. The application realizes the purposes of improving the automation degree of the curing process of the mass concrete bottom plate, reducing water loss, and improving the forming quality of the concrete bottom plate.

[0009] Optionally, the support device comprises a plurality of bottom beams, a plurality of support rods arranged on the bottom beams, a plurality of top beams arranged on the support rods, and a hinge shaft arranged at the end of the top beam; the plurality of top beams are hingedly connected in a head-to-tail manner through the hinge shaft.

[0010] By adopting the technical scheme, the bottom beam plays a role in connecting the support device and the concrete bottom plate, and plays an auxiliary role in the process of pre-installing the support device on the concrete bottom plate. The top beam plays a role in connecting a plurality of support devices into a whole. The hinge shaft plays a role in connecting two adjacent support devices. The installation mode of rotatingly connecting two adjacent support devices through the hinge shaft can fit the edge of the concrete bottom plate, make the support effect more stable, and make the application applicable to concrete bottom plates of different sizes.

[0011] Optionally, the circulating spraying device comprises a circulating water pump arranged on the bottom beam and connected with the driving device, a spraying pipe arranged along the length direction of the top beam, a plurality of flat-head nozzles arranged on the spraying pipe and connected with the inside of the spraying pipe, and a water storage pool; the water storage pool is arranged at one end of the side wall of the concrete bottom plate close to the ground and is connected with a water source; the water inlet end of the circulating water pump is connected with the water storage pool, and the water outlet end is connected with the spraying pipe.

[0012] By adopting the technical scheme, the circulating spraying device can keep the curing water on the surface of the concrete bottom plate through circulating spraying, improve the utilization rate of water resources without significantly increasing the water consumption, and ensure the curing conditions of the concrete bottom plate.

[0013] Optionally, a flow guide slide is arranged at the top of the water storage pool, the flow guide slide is fitted to one end of the concrete bottom plate close to the ground and is arranged along the circumferential direction, and the flow guide slide is connected with the water storage pool.

[0014] By adopting the technical scheme, the diversion chute installed on the top of the water storage pool plays a role of diversion and recycling of the curing water left along the side wall of the concrete bottom plate, reduces the amount of spraying in the spraying process, and improves the recycling rate of water resources.

[0015] Optionally, the film covering device comprises a plurality of transmission shafts penetrating through the bottom beam, geotextiles arranged on the transmission shafts, chain wheels fixedly arranged at both ends of the transmission shafts, and a tensioning assembly arranged on the bottom beam; the geotextiles are sleeved on two adjacent transmission shafts and are divided into two layers, one layer of the geotextiles close to the concrete bottom plate is attached to the surface of the concrete bottom plate, and the tensioning assembly is arranged between the two layers of geotextiles.

[0016] By adopting the technical scheme, the transmission shafts in the film covering device play a supporting and limiting role in the installation and operation of the geotextiles, the geotextiles are attached to the concrete bottom plate, play a role of water retention, reduce the water evaporation speed, reduce the water consumption, improve the uniformity of spraying, and avoid the cracking of the concrete bottom plate caused by uneven hardening speed.

[0017] Optionally, the tensioning assembly comprises a connecting rod arranged on the bottom beam and a roller arranged on the connecting rod; the roller surface of the roller abuts against the upper surface of one layer of the geotextiles close to the concrete bottom plate, and the roller shaft of the roller is slidingly connected with the connecting rod in the vertical direction.

[0018] By adopting the technical scheme, the connecting rod in the tensioning assembly plays a supporting role, the roller arranged on the connecting rod abuts against the geotextiles, so that the geotextiles are attached to the upper surface of the concrete bottom plate, and the mechanism design that the roller shaft is slidingly connected with the connecting rod in the vertical direction makes the vertical distance between the roller surface of the roller and the geotextiles adjustable according to actual use requirements.

[0019] Optionally, the tensioning assembly further comprises a scraper arranged on the connecting rod; the scraper is attached to the outer surface of the geotextiles.

[0020] By adopting the technical scheme, the scraper structure in the tensioning assembly plays a role of scraping the surface at the joint of the geotextiles and the concrete bottom plate, avoids the adhesion of the concrete to the geotextiles and the entry of the geotextiles into the rotating connection structure of the transmission shafts, and improves the service life of the transmission shafts.

[0021] Optionally, the driving device comprises a driving motor fixedly arranged on the bottom beam and a speed reducer arranged on the power output shaft of the driving motor; the input end of the speed reducer is connected with the driving motor, the output end of the speed reducer is connected with the chain transmission of the chain wheel, and the circulating spraying device is connected.

[0022] Through the above technical scheme, the driving motor in the driving device can generate torque after being electrified, the speed of the driving motor can be reduced by the speed reducer, so as to increase the torsional force, and the driving device can drive the normal operation of the circulating spraying device and the film coating device.

[0023] Optionally, the film coating device further comprises a plurality of sensors arranged on the support rod, the sensors are used for reading the surface temperature and humidity of the concrete bottom plate, and are electrically connected with the driving motor.

[0024] Through the above technical scheme, the sensors arranged on the support rod can monitor the surface temperature and humidity of the concrete bottom plate in real time, and when the temperature and humidity data exceed the preset range, the driving motor can be executed with the power-on or power-off instruction, so that the temperature and humidity conditions of the surface of the concrete bottom plate are maintained in the interval suitable for concrete curing, the introduction of the sensors increases the automation degree of the application, and the expenditure of manual work is reduced.

[0025] In a second aspect, the application provides an automatic curing method for a mass concrete bottom plate, which applies the automatic curing system for a mass concrete bottom plate in the foregoing.

[0026] An automatic curing method for a mass concrete bottom plate comprises the following steps:

[0027] Step 1, after the concrete bottom plate is poured for at least 48 hours, the formwork is removed and the surface of the concrete bottom plate is cleaned;

[0028] Step 2, the support device is turned over to a suitable angle and is hoisted and fixed on the surface of the concrete bottom plate;

[0029] Step 3, the driving device is assembled with the circulating spraying device and the film coating device respectively and is tested;

[0030] Step 4, the circulating spraying device is filled with water to a suitable position, and the tensioning assembly is adjusted so that the geotextile is in a suitable position;

[0031] Step 5, the curing time is determined according to the size of the concrete bottom plate and the climate conditions of the pouring area, and after the curing is completed, the equipment is removed.

[0032] In summary, the application has at least one of the following beneficial technical effects:

[0033] 1. The support device fixedly installed on the concrete bottom plate in the application supports and fixes other parts of the structure, and can limit the application on the concrete bottom plate. The film device installed on the support device can slow down the transpiration of the curing water on the upper surface of the concrete bottom plate, slow down the water loss speed, reduce the required curing water amount per unit time, and uniformly cover the sprayed curing water on the upper surface of the concrete bottom plate, avoiding the phenomenon that the setting and hardening speeds of the mass concrete bottom plate are different. The circulating spraying device can spray curing water on the concrete bottom plate, keep the temperature and humidity within a certain range, recycle and cyclically use the excess curing water, reduce the water resource loss, and provide power for the operation of the circulating spraying device and the film device. The application realizes the purposes of improving the automation degree of the mass concrete bottom plate curing process, reducing water resource loss, and improving the forming quality of the concrete bottom plate;

[0034] 2. The bottom beam in the application connects the support device and the concrete bottom plate, and plays an auxiliary role in the process of pre-installing the support device on the concrete bottom plate. The top beam connects multiple support devices into a whole. The hinge shaft connects two adjacent support devices. The installation mode of the hinge shaft rotating connection between the two adjacent support devices can fit the edge of the concrete bottom plate, make the support effect more stable, and make the application suitable for concrete bottom plates of different sizes.

[0035] 3. The sensor installed on the support rod in the application can monitor the surface temperature and humidity of the concrete bottom plate in real time. When the temperature and humidity data exceed the preset range, the driving motor can be powered on or powered off, so that the temperature and humidity conditions of the concrete bottom plate surface are maintained within the interval suitable for concrete curing. The introduction of the sensor increases the automation degree of the application and reduces the labor cost. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 It is a structure schematic view of the automatic curing system for mass concrete bottom plate disclosed in the embodiment of the application.

[0037] Figure 2 It is a structure schematic view of the support device in the embodiment of the application.

[0038] Figure 3 It is a structure schematic view of the film device in the embodiment of the application.

[0039] Figure 4 It is a structure schematic view of the circulating spraying device and the driving device in the embodiment of the application.

[0040] Explanation of reference signs: 1, support device; 11, bottom beam; 12, support rod; 13, top beam; 14, hinged shaft; 2, film coating device; 21, transmission shaft; 22, geotextile; 23, chain wheel; 24, tensioning assembly; 241, connecting rod; 242, roller; 243, scraper; 25, sensor; 3, circulating spraying device; 31, circulating water pump; 32, spraying pipe; 33, flat head nozzle; 34, water storage pool; 341, flow guide slide; 4, driving device; 41, driving motor; 42, speed reducer. DETAILED DESCRIPTION

[0041] The following will be described in detail below with reference to the accompanying drawings. Figure 1 - the accompanying drawings Figure 4 The present application is further described in detail.

[0042] Concrete curing refers to the process of promoting the setting and hardening of a concrete structure after it is poured, by controlling conditions such as temperature and humidity, to improve the load-bearing capacity and enable it to achieve the design strength and required performance. The concrete curing process plays a decisive role in improving the quality of concrete buildings and is one of the indispensable links in modern construction. During the setting and curing of concrete, the surface of the concrete structure needs to be kept moist and exposed to the atmosphere to improve the hardening speed. At present, the most common method of concrete curing is manual spraying, which uses a high-pressure water pump to spray the surface of the concrete structure to keep it moist, and then sprays a plastic film or covers it with geotextile to maintain the temperature and slow down the rate of water loss. This method of concrete curing has many limitations when dealing with the curing of large-volume concrete floor structures: due to the large volume of the concrete structure, manual spraying is not only inefficient and wasteful of water resources, but also results in uneven spraying, different temperatures and humidities, and inconsistent setting and shrinkage rates of the concrete structure, leading to cracking or other quality problems. In order to improve the degree of automation of the curing process of large-volume concrete floors, reduce water consumption and improve the quality of the formed concrete floor, the present application provides a large-volume concrete floor automatic curing system and method.

[0043] In a first aspect, the embodiments of the present application disclose a large-volume concrete floor automatic curing system. Referring to Figure 1 A large-volume concrete floor automatic curing system includes a support device 1, a film coating device 2, a circulating spraying device 3 and a driving device 4. The support device 1 is fixedly installed on the surface of the concrete floor, and the film coating device 2, the circulating spraying device 3 and the driving device 4 are all installed on the support device 1.

[0044] Referring to Figure 1 and Figure 2The support device 1 comprises a bottom beam 11, a support rod 12, a top beam 13 and a hinge shaft 14. The bottom beam 11 can be a metal support frame welded by a metal frame with a rectangular cross section and a metal square tube. A plurality of bolt holes for installing anchor bolts are arranged on the bottom beam 11. A plurality of anchor rods are vertically and fixedly arranged on the lower surface of the bottom beam 11, and when the bottom beam 11 is installed on the concrete bottom plate, the anchor rods are anchored into the concrete bottom plate. The support rod 12 is a cylindrical metal rod vertically welded on the upper surface of the bottom beam 11. The support rod 12 is in a plurality, and the connecting points of the support rod 12 and the bottom beam 11 are uniformly arranged along the length direction of the bottom beam 11. The top beam 13 is installed on the top of the support rod 12 by welding. The hinge shaft 14 is arranged at both ends of the top beam 13. The hinge shaft 14 is rotationally connected with the top beam 13. Adjacent two support devices 1 are connected with each other through the hinge shaft 14 and can rotate around the axis direction.

[0045] With reference to Figure 1 and Figure 3 The film coating device 2 comprises a transmission shaft 21, a geotextile 22, a chain wheel 23 and a tensioning assembly 24. The transmission shaft 21 is arranged on the bottom beam 11 and rotationally connected with the bottom beam 11. The chain wheel 23 is installed on the end of the transmission shaft 21 by key connection. The chain wheel 23 can drive the transmission shaft 21 to rotate. The geotextile 22 is sleeved on the transmission shaft 21 to form a ring shape. The geotextile 22 located on the lower layer and close to the concrete bottom plate abuts against the surface of the concrete bottom plate. The transmission shaft 21 can drive the geotextile 22 to rotate circularly. The tensioning assembly 24 comprises a connecting rod 241, a roller 242 and a scraper 243. The roller 242 and the scraper 243 are both installed on the connecting rod 241, and the roller 242 is slidingly connected with the connecting rod 241 along the direction perpendicular to the ground. The scraper 243 abuts against the upper surface of the geotextile 22 and can scrape the concrete on the surface of the geotextile 22 during the driving of the geotextile 22 by the transmission shaft 21. The sensor 25 is installed on the support rod 12 and can monitor the temperature and humidity of the geotextile 22 and the surface of the concrete bottom plate in real time. The sensor 25 is electrically connected with the driving device 4 and can be used to control the start and stop of the driving device 4.

[0046] With reference to Figure 1 and Figure 4The circulating spraying device 3 comprises a circulating water pump 31, a spraying pipe 32, a flat head nozzle 33 and a water storage pool 34. The water storage pool 34 can be a rectangular metal box with an open top. The water storage pool 34 is installed on the side wall of the concrete bottom plate near the ground. The top of the water storage pool 34 is provided with a flow guide chute 341. The flow guide chute 341 is arranged obliquely along the side wall of the concrete bottom plate, and the end with a lower height is in communication with the water storage pool 34. The circulating water pump 31 is fixedly installed on the support device 1, and the water inlet end of the circulating water pump 31 is in communication with the water storage pool 34, and the water outlet end is in communication with the spraying pipe 32. The spraying pipe 32 is arranged along the length direction of the support device 1, and a plurality of water outlets are formed along the length direction. The flat head nozzle 33 is installed at the water outlet position.

[0047] With reference to Figure 1 and Figure 4 The driving device 4 comprises a driving motor 41 and a speed reducer 42. The driving motor 41 is connected with the power input shaft of the speed reducer 42. The power output shaft of the speed reducer 42 is connected with the circulating water pump 31, and is connected with the chain wheel 23 on the transmission shaft 21 through chain transmission.

[0048] In a second aspect, the embodiment of the present application discloses an automatic curing method for a large-volume concrete bottom plate, which comprises the following steps:

[0049] Step 1: After the concrete bottom plate is poured for at least 48 hours, the formwork is removed and the surface of the concrete bottom plate is cleaned.

[0050] Step 2: The support device 1 is turned to a suitable angle and hoisted and fixed on the surface of the concrete bottom plate.

[0051] Step 3: The driving device 4 is assembled with the circulating spraying device 3 and the film covering device 2 respectively and is tested.

[0052] Step 4: The circulating spraying device 3 is filled with water to a suitable position, and the tensioning assembly 24 is adjusted so that the geotextile 22 is in a suitable position.

[0053] Step 5: The curing time is determined according to the size of the concrete bottom plate and the climate conditions of the pouring area. After the curing is completed, the equipment is removed.

[0054] The above is the preferred embodiment of the present application, which does not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. An automated curing system for mass concrete floor slabs, characterized by: The support device (1) is fixedly arranged on the surface of the concrete bottom plate, the film device (2) is arranged on the support device (1) and is attached to the surface of the concrete bottom plate, the circulating spraying device (3) is arranged on the support device (1), and the driving device (4) is arranged on the support device (1); the driving device (4) is connected with the film device (2) and the circulating spraying device (3) and provides power for the operation of the film device (2) and the circulating spraying device (3); The support device (1) comprises a plurality of bottom beams (11), a plurality of support rods (12) arranged on the bottom beams (11), a plurality of top beams (13) arranged on the support rods (12), and a hinge shaft (14) arranged at the end of the top beam (13); a plurality of top beams (13) are hingedly connected end to end through the hinge shaft (14). The film device (2) comprises a plurality of transmission shafts (21) penetrating through the bottom beams (11), geotextiles (22) arranged on the transmission shafts (21), sprockets (23) fixedly arranged at the two ends of the transmission shafts (21), and tensioning assemblies (24) arranged on the bottom beams (11); the geotextiles (22) are sleeved on two adjacent transmission shafts (21) and are divided into two layers, one layer of the geotextiles (22) close to the concrete bottom plate is attached to the surface of the concrete bottom plate, and the tensioning assemblies (24) are arranged between the two layers of geotextiles (22).

2. The automated curing system for mass concrete floor slabs of claim 1, wherein: The circulating spraying device (3) comprises a circulating water pump (31) arranged on the bottom beam (11) and connected with the driving device (4), a spraying pipe (32) arranged along the length direction of the top beam (13), a plurality of flat-head nozzles (33) arranged on the spraying pipe (32) and connected with the inside of the spraying pipe, and a water storage pool (34); the water storage pool (34) is arranged at one end of the side wall of the concrete bottom plate close to the ground and is connected with a water source; the water inlet end of the circulating water pump (31) is connected with the water storage pool (34), and the water outlet end is connected with the spraying pipe (32).

3. The automated curing system for mass concrete floor slabs of claim 2, wherein: The water storage pool (34) is provided with a flow guide slide (341) at the top, the flow guide slide (341) is attached to one end of the concrete bottom plate close to the ground and is arranged along the circumference, and the flow guide slide (341) is connected with the water storage pool (34).

4. The automated curing system for mass concrete floor slabs of claim 1, wherein: The tensioning assembly (24) comprises a connecting rod (241) arranged on the bottom beam (11) and a roller (242) arranged on the connecting rod (241); the roller surface of the roller (242) abuts against the upper surface of one layer of the geotextiles (22) close to the concrete bottom plate, and the roller shaft of the roller (242) is slidingly connected with the connecting rod (241) in the vertical direction.

5. The automated curing system for mass concrete floor slabs of claim 4, wherein: The tensioning assembly (24) further comprises a scraper (243) arranged on the connecting rod (241); the scraper (243) is attached to the outer surface of the geotextiles (22).

6. The automated curing system for mass concrete floor slabs of claim 1, wherein: The driving device (4) comprises a driving motor (41) fixed on the bottom beam (11) and a speed reducer (42) arranged on a power output shaft of the driving motor (41); an input end of the speed reducer (42) is connected with the driving motor (41), an output end of the speed reducer (42) is connected with the chain wheel (23) in a chain transmission mode, and the circulating spraying device (3) is connected with the chain wheel (23).

7. The automated curing system for mass concrete floor slabs of claim 6, wherein: The film coating device (2) further comprises a plurality of sensors (25) arranged on the supporting rods (12), the sensors (25) are used for reading the surface temperature and humidity of the concrete bottom plate, and are electrically connected with the driving motor (41).

8. A method for the automated curing of a mass concrete floor slab using a system for the automated curing of a mass concrete floor slab according to any one of claims 1 to 7, characterized in that The method comprises the following steps: Step 1, after the concrete bottom plate is poured for at least 48 hours, the formwork is removed, and the surface of the concrete bottom plate is cleaned; Step 2, the supporting device (1) is turned over to a suitable angle and is hoisted and fixed on the surface of the concrete bottom plate; Step 3, the driving device (4) is assembled with the circulating spraying device (3) and the film coating device (2) respectively and is tested; Step 4, water is injected into the circulating spraying device (3) to a suitable position, and the tensioning assembly (24) is adjusted so that the geotextile (22) is in a suitable position; Step 5, the curing time is determined according to the size of the concrete bottom plate and the climate condition of the pouring area, and after the curing is completed, the equipment is removed.

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