JP4806392B2 - Wet curing management system and wet curing management method - Google Patents

Description

  The present invention relates to a wet curing management system and a wet curing management method for performing wet curing of a cement cured product while managing the wet state of the cement cured product.

There is a tunnel lining concrete curing device that sprays water on the tunnel lining concrete that has been cast to cure the concrete (see Patent Document 1). This curing device is formed of a spray mechanism for spraying mist-like water on tunnel lining concrete and a moving mechanism for moving the spray mechanism in the tunnel. The spray mechanism sprays a predetermined amount of mist of water on the surface of the tunnel lining concrete while moving in the tunnel using the moving mechanism. In this curing device, the humidity distribution on the tunnel lining concrete surface is measured by a humidity sensor, and the amount of water sprayed is adjusted so that the humidity on the concrete surface is appropriate.
JP 2006-89995 A

  In the tunnel lining concrete curing device described in Patent Document 1, the humidity distribution on the tunnel lining concrete surface is measured by a humidity sensor, but the humidity measured by the humidity sensor is substantially the same as that of the outside air, The internal relative humidity cannot be measured. This curing device cannot control the relative humidity inside the tunnel lining concrete required for wet curing, and cannot maintain the surface at the optimum humidity based on the relative humidity inside the concrete. The concrete cannot be wet-cured with the humidity maintained optimally. Also, since the measured humidity of the tunnel lining concrete surface is substantially the same as that of the outside air, spraying water based on the humidity distribution of the tunnel lining concrete surface increases the amount of water sprayed on the concrete and The number of sprays of water increases, resulting in wasted water. Furthermore, the ground becomes muddy by dripping water, the cost for wasteful wastewater treatment increases, and the wasteful wastewater treatment takes time and effort.

  The object of the present invention is to maintain the surface of the cement cured product at an optimum humidity based on the relative humidity inside the cement cured product, and to perform wet curing of the cement cured product while maintaining the surface humidity optimally. To provide a wet curing management system and a wet curing management method. Another object of the present invention is to provide a wet curing management system and wet curing capable of performing a wet curing of a hardened cement material while realizing an optimal surface humidity environment, eliminating waste of water, requiring labor and time. To provide a management method.

The first premise of the present invention for solving the above problems is a wet curing management system that performs wet curing of a hardened cemented product while managing the wet state of the hardened cemented product.
The feature of the present invention in the first premise is that a wet curing management system is provided on the surface of the cement cured product, a humidity sensor installed at a predetermined depth from the surface of the cement cured product toward the inside of the cement cured product. It is formed by a flooding mechanism for flooding water and a controller, and the controller compares the measured relative humidity output from the humidity sensor with the preset lower limit relative humidity, and the measured relative humidity is the lower limit relative humidity. When it becomes less than, when the measured relative humidity output from the humidity sensor is saturated, the water start instruction means to inject water onto the hardened cement surface through the water injection mechanism There is a flooding stop instruction means for stopping flooding of water from the flooding mechanism.

  As an example of the wet curing management system according to the present invention, the controller stores a curing period corresponding to the type of cement and the curing temperature, and the controller includes a flooding start instruction unit and a flooding stop instruction unit until the curing period elapses. And execute.

  As another example of the wet curing management system according to the present invention, the wet curing management system includes a temperature sensor installed at a predetermined depth from the surface of the cement cured product toward the inside of the cement cured product, and a flooding mechanism. And a heating mechanism that heats the water to be submerged, and the controller includes a water temperature adjusting unit that heats the temperature of the water submerged from the submergence mechanism to the vicinity of the actually measured temperature output from the temperature sensor via the heating mechanism.

  As another example of the wet curing management system according to the present invention, a plurality of humidity sensors are installed at predetermined intervals in the extending direction of the hardened cement material, and the humidity comparison means measures the relative humidity measured by each humidity sensor. Is compared with the preset lower limit relative humidity, and when the flooding start instruction means, when the measured relative humidity output from each humidity sensor becomes less than the lower limit relative humidity, cement hardening at the location corresponding to the humidity sensor When the measured relative humidity output from each humidity sensor is saturated, the water stoppage is stopped at the location corresponding to the humidity sensor that measured the measured actual relative humidity. Let

  As another example of the wet curing management system according to the present invention, a plurality of temperature sensors are installed at predetermined intervals in the extending direction of the hardened cement material, and the water temperature adjusting means has a cement hardening at a location corresponding to each temperature sensor. The temperature of water drowned on the surface of the object is heated to the vicinity of the actually measured temperature output from those temperature sensors.

  As another example of the wet curing management system according to the present invention, the depth at which the humidity sensor is installed is in the range of 1 cm to 5 cm from the surface of the cement cured product to the inside of the cement cured product, and the lower limit relative humidity is 95% RH.

  As another example of the wet curing management system according to the present invention, the depth at which the temperature sensor is installed is in the range of 1 cm to 5 cm from the surface of the cement cured product to the inside of the cement cured product, and is heated by a heating mechanism. The temperature of the water to be discharged is in the range of ± 5 ° C. across the measured temperature output from the temperature sensor.

  The second premise of the present invention for solving the above problem is a wet curing management method for performing wet curing of the hardened cement product while managing the wet state of the hardened cement material.

  The feature of the present invention in the second premise is that a wet curing management method is applied to a humidity sensor installed at a predetermined depth from the surface of the hardened cement to the inside of the hardened cement, and to the surface of the hardened cement. Humidity mechanism that irrigates water and a controller, where the controller compares the measured relative humidity output from the humidity sensor with the preset lower limit relative humidity, and the measured relative humidity is less than the lower limit relative humidity When the measured relative humidity output from the humidity sensor is saturated, the process of instructing the start of water flooding the surface of the hardened cement material through the water flooding mechanism and the water flooded by the water flooding mechanism And a submergence stop instruction process for stopping submergence of water from the submergence mechanism.

  As an example of the wet curing management method according to the present invention, the controller stores a curing period corresponding to the type of cement and the curing temperature, and the controller performs a flooding start instruction process and a flooding stop instruction process until the curing period elapses. And execute.

  As another example of the wet curing management method according to the present invention, the wet curing management method includes a temperature sensor installed at a predetermined depth from the surface of the cement cured product toward the inside of the cement cured product, and a flooding mechanism. And a controller that performs a water temperature adjustment process for heating the temperature of the water that has been drowned from the drowning mechanism to the vicinity of the actual temperature output from the temperature sensor via the heating mechanism. .

  As another example of the wet curing management method according to the present invention, a plurality of humidity sensors are installed at predetermined intervals in the extending direction of the hardened cement material, and in the humidity comparison process, the measured relative values output from the respective humidity sensors. Compare the humidity with the preset lower limit relative humidity, and in the flooding start instruction process, when the measured relative humidity output from each humidity sensor becomes less than the lower limit relative humidity, the cement at the location corresponding to those humidity sensors If the measured relative humidity output from each humidity sensor is saturated in the process of instructing the stoppage of water, the surface of the cured product is sprayed with water at the location corresponding to the humidity sensor that measured the measured actual relative humidity. Stop.

  As another example of the wet curing management method according to the present invention, a plurality of temperature sensors are installed at predetermined intervals in the extending direction of the hardened cement material, and in the water temperature adjustment process, the cement at a location corresponding to each temperature sensor. The temperature of water to be flooded on the surface of the cured product is heated to the vicinity of the actually measured temperature output from these temperature sensors.

  As another example of the wet curing management method according to the present invention, the depth at which the humidity sensor is installed is in the range of 1 cm to 5 cm from the surface of the hardened cement to the inside of the hardened cement, and the lower limit relative humidity is 95% RH.

  As another example of the wet curing management method according to the present invention, the depth at which the temperature sensor is installed is in the range of 1 cm to 5 cm from the surface of the cement cured product to the inside of the cement cured product, and is heated by a heating mechanism. The temperature of the water to be discharged is in the range of ± 5 ° C. across the measured temperature output from the temperature sensor.

  According to the wet curing management system and the wet curing management method of the present invention, the measured relative humidity output from the humidity sensor is compared with the preset lower limit relative humidity, and the measured relative humidity is less than the lower limit relative humidity. At this point, the surface of the cement hardened material is flooded from the water filling mechanism, so the surface of the cement hardened material during wet curing can be optimally moistened by submerging water according to the decrease in the relative humidity inside the cement hardened material. Can be held in. This wet-curing management system and wet-curing management method can perform wet curing of cement hardened materials with the surface humidity kept optimal, and can produce hardened cement products with excellent mechanical strength and durability. . Further, when the measured relative humidity output from the humidity sensor is saturated, the water dripping from the water dripping mechanism is stopped, so that the surface humidity of the cement cured product can be optimally held with the minimum amount of water. Since this wet curing management system and wet curing management method can maintain the surface of the hardened cement material at an optimal humidity without using a large amount of water, it is possible to prevent mudging of the ground due to dripping water, Costs, labor and time for wastewater treatment can be saved.

  Wet curing management system and wet curing management method for executing flooding start instructing means (flooding start instructing process) and flooding stop instructing means (flooding stop instructing process) until the curing period corresponding to the type of cement and the curing temperature elapses Since the start and stop of flooding are not performed after the curing period has elapsed, unnecessary flooding after the curing period has elapsed can be prevented, and waste of water can be eliminated.

  The wet curing management system and the wet curing management method that use the heating mechanism to heat the temperature of the water that is flooded from the flooding mechanism near the measured temperature output from the temperature sensor, the temperature of the flooded water generated heat during curing. By bringing the cement hardened product close to the temperature of the cement hardened water, the surface of the cement hardened product can be drowned without drastically cooling the surface of the cement hardened product. Generation of cracks due to rapid cooling of the surface can be prevented.

  A wet curing management system and a wet curing management method in which a plurality of humidity sensors are installed at predetermined intervals in the extending direction of the hardened cement material, the measured relative humidity output from each humidity sensor and the preset lower limit relative humidity When the measured relative humidity output from each humidity sensor is less than the lower limit relative humidity, water is sprayed on the surface of the cured cement at the location corresponding to these humidity sensors. The surface of the entire hardened cement can be kept at the optimum humidity while maintaining the optimum humidity while responding to local changes in the external environment to which the hardened cement is exposed. In this state, the cured cement can be wet-cured. In this wet curing management system and wet curing management method, when the measured relative humidity output from each humidity sensor is saturated, water drowning is stopped at the location corresponding to the humidity sensor that has measured the saturated measured relative humidity. The humidity across the surface of the cement cured product can be optimally maintained with a minimum amount of water while responding to local changes in the external environment to which the cement cured product is exposed.

  The wet curing management system and the wet curing management method in which a plurality of temperature sensors are installed at predetermined intervals in the extending direction of the cement cured product include water that is submerged on the surface of the cement cured product at a location corresponding to each temperature sensor. Since the temperature is heated to the vicinity of the actual temperature output from these temperature sensors, even if the hardened cement is increased in size, it is submerged while responding to local changes in the external environment to which the hardened cement is exposed. The temperature of the water can be brought close to the temperature of the cement-cured product that has generated heat during curing, and water having substantially the same temperature as the temperature of the cement-cured product can be drowned over the entire surface of the cement-cured product. In the wet curing management system and the wet curing management method, the surface of the hardened cement product is not rapidly cooled by flooding, and the generation of cracks due to the rapid cooling of the surface of the hardened cement product can be prevented.

  A wet curing management system and a wet curing management method in which the depth at which the humidity sensor is installed is in a range of 1 cm to 5 cm from the surface of the cement cured product to the inside of the cement cured product, and the lower limit relative humidity is 95% RH. By installing the humidity sensor in the range of 1 cm to 5 cm from the surface of the hardened cement to the inside of the hardened cement, the relative humidity near the surface of the hardened cement can be reliably measured. The humidity change on the surface of the object can be captured reliably. This wet-curing management system and wet-curing management method can maintain the surface at an optimum humidity based on the relative humidity inside the cement-cured product, and the cement-cured product can be moist-cured with the surface humidity kept optimal. It can be performed.

  The depth at which the temperature sensor is installed is in the range of 1 cm to 5 cm from the surface of the hardened cement product to the inside of the hardened cement product, and the temperature of water heated by the heating mechanism is the measured temperature output from the temperature sensor. In the wet curing management system and the wet curing management method in the range of ± 5 ° C., the temperature sensor is installed in the range of 1 cm to 5 cm from the surface of the cement cured product toward the inside of the cement cured product. The temperature near the surface of the cured product can be reliably measured, and the temperature change on the surface of the cured cement product can be reliably captured. In this wet curing management system and wet curing management method, the temperature of the water heated by the heating mechanism is in the range of ± 5 ° C. across the measured temperature output from the temperature sensor. The temperature of the hardened cement product approaches to the temperature of the hardened cement product, and water of approximately the same temperature as that of the hardened cement product can be submerged, and the surface of the hardened cement product is not rapidly cooled by the submerged water. Generation of cracks due to rapid cooling of the surface can be prevented.

  The wet curing management system and the wet curing management method according to the present invention will be described in detail with reference to the accompanying drawings as follows. FIG. 1 is a schematic configuration diagram of a wet curing management system 10A shown as an example, and FIG. 2 is a cross-sectional view taken along line 1-1 of FIG. FIG. 3 is a perspective view of the humidity sensor 12 shown as an example, and FIG. 4 is an end view taken along line 2-2 of FIG. FIG. 5 is a diagram illustrating an example of the relationship between relative humidity and elapsed time. In FIG. 1, the water 14 is flooded toward the concrete 11. 1 and 2, the vertical direction is indicated by an arrow A, the horizontal direction is indicated by an arrow B (only in FIG. 1), and the thickness method is indicated by an arrow C. In FIG. 5, the vertical axis represents the relative temperature, and the horizontal axis represents the elapsed time.

  The wet curing management system 10A for carrying out the wet curing management method includes a humidity sensor 12 that measures the relative humidity of the placed concrete 11 (hardened cement) in time series, and water 14 on the surface 13 of the concrete 11. An automatic watering machine 15 (a watering mechanism) that performs watering and a controller 16 that controls the watering machine 15 based on the relative humidity output from the humidity sensor 12 are formed.

  The concrete 11 can be made by mixing a raw material cement, water, and aggregate to form a mixture, and placing the mixture in a mold having a predetermined shape. The illustrated concrete 11 is in a state of curing after the formwork is removed. The formwork is allowed to cure with the surface attached until it hardens and then removed. Note that the concrete 11 is not limited to the illustrated quadrangular prism shape, and concrete of any other shape such as a cylindrical shape or a polygonal column shape can be made depending on the shape of the mold. This system can be applied not only to the concrete 11 after demolding but also to the concrete from after placing to before demolding.

  The raw material cement is added with a solidifying material that effectively acts on the object to be solidified. The raw material cement takes in water to cause a hydration reaction, and continuously promotes a plurality of solidification reactions such as formation of calcium silicate hydrate. When the raw material cement is kneaded with water, a hydration reaction occurs immediately, and the compound in the cement reacts with water to generate new hydrates one after another, thereby promoting the hydration reaction. As time elapses, the fluidity is lost and the product is condensed, the curing progresses and the strength is developed. During the curing of the concrete 11, particularly in the early to middle periods, the inside of the concrete 11 becomes hot due to the influence of the heat of hydration of the cement. As the raw material cement, at least one of premix cement, Portland cement, blast furnace cement, fly ash cement, and silica cement is used. As the raw material cement, any of them may be used alone, or a mixed cement obtained by mixing them at a predetermined ratio may be used. Tap water, river water, lake water, well water, groundwater, etc. are used as water. As the aggregate, coarse aggregate or fine aggregate is used.

  As the humidity sensor 12, a polymer type humidity sensor is preferably used, but a ceramic type humidity sensor can also be used. As shown in FIGS. 3 and 4, the humidity sensor 12 is formed of a plastic case 17, a measurement unit 18, and a lead wire 19 extending from the measurement unit 18. The case 17 is a rectangular parallelepiped having six surfaces, and includes a storage chamber 20 therein, and an opening 22 is formed in the top surface 21. A waterproof film 25 is fixed to the bottom surface 23 and each side surface 23 excluding the top surface 21 of the case, and is waterproofed. A liquid-impervious and moisture-permeable plastic film 26 that covers the entire opening 22 is fixed to the top surface 21. As the plastic film 26, a polyvinyl alcohol film, a cellulose acetate film, a cellulose triacetate film, a nylon film, or a polyurethane film can be used. The measurement unit 18 is stored in the storage unit 20 of the case 17. The lead wire 19 extends from the storage chamber 20 to the outside of the case 17.

  In this humidity sensor 12, the measurement unit 18 is stored in the storage chamber 20 of the case 17, so that the measurement unit 18 does not directly contact the concrete 11, and the relative humidity due to the measurement unit 18 coming into contact with the concrete 11 is not affected. Inability to measure can be prevented. In the humidity sensor 12, since a liquid-impervious and moisture-permeable plastic film 26 is fixed to the opening 22 of the case 17, moisture permeates the film 26 and enters the storage chamber 20. 11 relative humidity can be measured. Furthermore, moisture does not enter the storage chamber 20 from the opening 22, and it is possible to prevent measurement of the relative humidity due to the measurement unit 18 coming into contact with water.

  The measurement unit 18 of the humidity sensor 12 housed in the case 17 is installed at a predetermined depth from the surface 13 (one side surface) of the concrete 11 toward the inside 27 (inside the thickness direction). The depth L where the measuring unit 18 of the sensor 12 is installed is in the range of 1 cm or more and 5 cm or less from the surface 13 of the concrete 11 toward the interior 27 thereof. If the depth L at which the measurement unit 18 of the sensor 12 is installed is less than 1 cm, it is difficult to install the case 17 in the interior 27 of the concrete 11, and the relative humidity of the concrete 11 cannot be measured via the sensor 12. When the depth L at which the measuring unit 18 of the sensor 12 is installed exceeds 5 cm, the humidity change of the concrete 11 at that position is slow and does not coincide with the humidity change in the vicinity of the surface 13 of the concrete 11. Change cannot be captured properly.

  A lead wire 19 extending to the outside of the case 17 is exposed to the outside from the surface 13 of the concrete 11. Although not shown, the lead wire 19 is connected to a wireless unit capable of wireless communication. The wireless unit is formed of a housing and a transmission / reception device. The humidity sensor 12 measures the relative humidity inside the concrete 11 near the surface 13 of the concrete 11 and outputs the measured relative humidity to the wireless unit. The wireless unit transmits the relative humidity output from the sensor 12 via the lead wire 19 to the controller 16 in time series.

  The automatic water feeder 15 is formed by a control device, a pump, and an injection nozzle (not shown), and automatically waters the water 14 from the nozzle. The water purifier 15 is installed at a position where water 14 can be drowned over the entire surface 13 of the concrete 11. In the water purifier 15, the amount of the flooded water can be adjusted by adjusting the valve mechanism, and the amount of the flooded water is adjusted in advance according to the size of the concrete 11. The control device of the water purifier 15 is connected to a wireless unit capable of wireless communication similar to the sensor 12 (not shown). The control device of the water dripping machine 15 starts drowning by an ON signal transmitted from the controller 16 to the wireless unit, and stops drowning by an OFF signal transmitted from the controller 16 to the wireless unit.

  The controller 16 is a computer having a central processing unit (CPU or MPU) and a memory (large capacity hard disk), and is equipped with a keyboard 28 and a display 29. The controller 16 includes a wireless unit (not shown). The controller 16 receives the measured relative humidity transmitted from the wireless unit connected to the sensor 12 via the wireless unit, and stores the received measured relative humidity in time series. The controller 16 transmits an ON signal or an OFF signal to the wireless unit connected to the water sprayer 15 through the wireless unit. The memory of the controller 16 stores applications for causing the controller 16 to execute various means (various processes). Further, the memory stores a lower limit relative humidity, a type of cement, and a curing period corresponding to the curing temperature. The lower limit relative humidity is set to 95% RH. However, the lower limit relative humidity is not limited to 95% RH, and the lower limit relative humidity can be freely changed via the keyboard 28. As an example of the curing period, for example, when the cement is ordinary Portland cement and the curing temperature is 5 ° C., the curing period is 9 days or more. The curing period is automatically set by selecting a specific one of the various types of cement displayed on the display 30 and designating the curing temperature.

  The central processing unit of the controller 16 activates an application from the memory based on control by the operating system, and executes the following means (each process) according to the activated application. The central processing unit executes humidity comparison means (humidity comparison process) for comparing the measured relative humidity transmitted (output) from the humidity sensor 12 with a preset lower limit relative humidity, and the measured relative humidity is less than the lower limit relative humidity. At that time, a water start instruction means (water start instruction process) for injecting water 14 onto the surface 13 of the concrete 11 through the automatic water machine 15 is executed. When the measured relative humidity output from the humidity sensor 12 is saturated, the central processing unit stops the dredging of the water 14 from the dredger 15 when the water 14 is drowned through the dredger 15. Execute the drowning stop instruction process). The central processing unit repeatedly executes the drowning start instructing means (the drowning start instructing process) and the drowning stop instructing means (the drowning stop instructing process) until a preselected curing period elapses.

  An example of wet curing of the concrete 11 in the system 10A will be described as follows. When the system 10A is activated, the humidity sensor 12, the automatic water purifier 15, and the controller 16 are activated. The sensor 12 measures the relative humidity of the concrete 11 endlessly and in time series, and transmits (outputs) the measured actual relative humidity to the wireless unit of the controller 16 via the wireless unit. The central processing unit of the controller 16 compares the measured relative humidity with the lower limit relative humidity while storing the measured relative humidity received from the humidity sensor 12 in the memory in time series (humidity comparison means, humidity comparison process).

  The relative humidity in the vicinity including the surface 13 of the concrete 11 gradually decreases with time. Therefore, the actual relative humidity of the concrete 11 measured by the sensor 12 also gradually decreases with time. As shown in FIG. 5, when the relative humidity transmitted from the sensor 12 is less than 95% RH (lower limit relative humidity), the central processing unit transmits an ON signal to the wireless unit of the automatic water sprinkler 15 via the wireless unit. To do. The wireless unit that has received the ON signal outputs the ON signal to the control device of the water sprinkler 15. Upon receiving the ON signal, the control device of the water sprayer 15 activates the pump and starts water pouring from the spray nozzle to the surface 13 of the concrete 11 (water pouring start instruction means, water pouring start instruction process).

  When the water 14 is submerged, the water 14 permeates into the interior 27 from the surface 13 of the concrete 11 and the relative humidity near the surface 13 of the concrete 11 is recovered. Therefore, the actual relative humidity of the concrete 11 measured by the sensor 12 increases. As shown in FIG. 5, when the relative humidity output from the humidity sensor 12 is saturated (maximum display 99% RH of the humidity sensor 12), the central processing unit of the controller 16 passes through the wireless unit. An OFF signal is transmitted to the wireless unit of the automatic water sprinkler 15. The wireless unit that has received the OFF signal outputs the OFF signal to the control device of the water sprinkler 15. Upon receiving the OFF signal, the control device of the water dripping machine 15 stops the pump and stops drowning the surface 11 of the concrete 11 (draft stop instructing means, dredging stop instructing process). When the relative humidity becomes lower than 95% RH (lower relative humidity) again, water dripping is started via the automatic water dripping machine 15, and when the relative humidity is saturated in the water dripping water 14, the water dripping from the water dripping machine 15 is stopped. The central processing unit stores the flooding amount and flooding time of the water 14 in the memory in time series.

  The central processing unit of the controller 16 uses the timer function to determine an elapsed period from the start of curing, and compares the elapsed time with a preset curing period. When the central processing unit determines that the elapsed period is within the curing period, the central processing unit continuously executes the drowning start instructing means (the drowning start instructing process) and the drowning stop instructing means (the drowning stop instructing process). When the central processing unit determines that the elapsed period has passed the curing period, the central processing unit stops the transmission of the ON signal and the OFF signal to the wireless unit of the water sprinkler 15 and wirelessly transmits the humidity sensor 12 and the water sprinkler 15 via the wireless unit. Send a switch stop signal to the unit. The humidity sensor 12 and the water purifier 15 turn off the switch according to the switch stop signal, and stop its operation.

  The wet curing management system 10A and the wet curing management method can obtain a value approximate to the relative humidity of the surface 13 of the concrete 11 by measuring the relative humidity of the concrete 11 inside 27 in the vicinity of the surface 13 of the concrete 11. . In the wet curing management system 10A and the wet curing management method, water 14 is flooded onto the surface 13 of the concrete 11 in accordance with a decrease in relative humidity in the vicinity of the surface 13 of the concrete 11, so that the surface 13 of the concrete 11 is maintained at an optimum humidity. can do. Therefore, wet curing of the concrete 11 can be performed in a state where the humidity of the surface 11 of the concrete 11 is optimally maintained, and the concrete 11 excellent in mechanical strength and durability can be made. Further, when the relative humidity output from the humidity sensor 12 is saturated, the water 14 from the water purifier 15 is stopped from being drowned, so that the humidity of the concrete 11 surface 13 can be optimally held by the minimum water 14.

  The wet curing management system 10A and the wet curing management method can maintain the surface 13 of the concrete 11 at an optimum humidity without using a large amount of water 14, and therefore prevent the soil from becoming muddy by dripping water. It is possible to save costs, labor and time for wastewater treatment. Since the wet curing management system 10A and the wet curing management method do not start and stop flooding after a preset curing period has elapsed, it is possible to prevent unnecessary flooding after the curing period has elapsed. 14 wastes can be reliably eliminated.

  The wet curing management system 10A and the wet curing management method use the measured relative humidity of the concrete 11 stored in the memory in time series, the amount of flooded water 14 flooded into the concrete 11, and the flooding time of the water 14, and The value can be reflected in the next wet curing of the structure in a similar environment (for example, the wet curing after the next span of the lining concrete). Therefore, by applying these values to another concrete under a similar environment, an appropriate wet curing can be performed on the concrete.

  FIG. 6 is a schematic configuration diagram of a wet curing management system 10B shown as another example. This system 10B is different from that shown in FIG. 1 in that a temperature sensor 30 is installed inside the concrete 11 and a heater 31 (heating mechanism) is installed in the automatic water purifier 15 (watering mechanism). is there. Since other configurations in the system 10B are the same as those in FIG. 1, the same reference numerals as those in the system 10A in FIG. 1 are assigned to omit the description of the other configurations in the system 10B.

  This system 10 </ b> B includes a humidity sensor 12, a temperature sensor 30 that measures the temperature of the concrete 11 (cured cement) after demolding in time series, an automatic water machine 15, and water 14 that is watered from the water machine 15. A temperature sensor (not shown) that measures the temperature in time series, a heater 31 that heats the water 14 irrigated from the water purifier 15 to a predetermined temperature, and the controller 16 are formed. The humidity sensor 12, the automatic watering machine 15, and the controller 16 are the same as those of the system 10A of FIG. The depth L where the measurement unit 18 of the humidity sensor 12 is installed is the same as that of the sensor 12 of FIG. 1 (see FIG. 2). The water purifier 15 is installed at a position where water 14 can be drowned over the entire surface 13 of the concrete 11.

  The central processing unit of the controller 15 executes the following means (process) in addition to each means (each process) of the system 10A of FIG. The central processing unit executes water temperature comparison means (water temperature comparison process) for comparing and calculating the actually measured temperature transmitted (output) from the temperature sensor 30 and the temperature of the water 14 transmitted from the temperature sensor. If it is determined that the temperature is within the range of the actually measured temperature, the water temperature adjusting means (water temperature) for heating the temperature of the water 14 irrigated from the water purifier 15 to the vicinity of the actually measured temperature transmitted (output) from the temperature sensor 30 via the heater 31. The adjustment process). The central processing unit transmits the temperature transmitted from the sensor 30 to the wireless unit of the water sprinkler 15 as it is as the designated temperature. Alternatively, the temperature transmitted from the sensor 30 is adjusted within a range of ± 5 ° C., and the adjusted temperature is transmitted as a designated temperature to the wireless unit of the water sprinkler 15. The range of ± with respect to the temperature from the sensor 30 can be freely changed via the keyboard 28.

  As the temperature sensor 30, a thermocouple, a resistance temperature sensor, a thermistor, an IC temperature sensor, or a magnetic temperature sensor can be used. The measurement part of the temperature sensor 30 is installed at a predetermined depth from the surface 13 (one side surface) of the concrete 11 toward the inside 27 (inner side in the thickness direction), similarly to that of the humidity sensor 12 (in FIG. 2). . The depth L where the measurement part of the sensor 30 is installed is in the range of 1 cm or more and 5 cm or less from the surface 13 of the concrete 11 toward the interior 27 thereof. If the depth L where the measuring part of the sensor 30 is installed is less than 1 cm, the sensor 30 is affected by the change in the external environment to which the concrete 11 is exposed, and the temperature inside the concrete 11 near the surface 13 of the concrete 11 is accurately measured. Can not do it. When the depth L at which the measurement unit of the sensor 30 is installed exceeds 5 cm, the measured temperature of the concrete 11 does not coincide with the temperature of the concrete 11 inside 27 near the surface 13 of the concrete 11, and in the vicinity of the surface 13 of the concrete 11. The temperature inside the concrete 11 27 cannot be measured accurately. The measurement unit of the temperature sensor 30 is connected to a wireless unit capable of wireless communication (not shown). Since the wireless unit is the same as that connected to the humidity sensor 12, the description thereof is omitted. The sensor 30 measures the temperature inside the concrete 11 in the vicinity of the surface 13 of the concrete 11 and outputs the measured temperature to the wireless unit. The wireless unit transmits the temperature output from the sensor 31 via the lead wire 32 to the wireless unit of the controller 15 in time series.

  The measuring unit of the temperature sensor of the water purifier 15 is installed in a water storage tank (not shown) of the water purifier 15. The heater 31 is formed of a control device and a heating device (not shown), and heats the water 14 to a predetermined temperature. The heating device of the heater 31 is installed in the water storage tank of the water purifier 15. The control device of the heater 31 and the temperature sensor are connected to a wireless unit capable of wireless communication together with the control device of the water purifier 15 (not shown). The temperature sensor measures the temperature of the water 14 stored in the water tank in time series, and outputs the measured temperature to the wireless unit. The wireless unit transmits the temperature of the water 14 output from the temperature sensor to the controller 15 by wireless. The control device of the heater 32 heats the water 14 stored in the water storage tank through the heating device in accordance with the specified temperature signal transmitted from the controller 15 to the wireless unit, and sets the temperature of the water 14 that is submerged from the water purifier 15. Heat to the specified temperature.

  An example of wet curing of the concrete 11 in this system 10B will be described as follows. When the system 10B is activated, the humidity sensor 12, the temperature sensor 30, the automatic water purifier 15, the heater 31, and the controller 16 are activated. The humidity sensor 12 measures the relative humidity of the concrete 11 endlessly and in time series, and transmits (outputs) the measured actual relative humidity to the wireless unit of the controller 16 via the wireless unit. The temperature sensor 30 measures the temperature of the concrete 11 endlessly and in time series, and transmits (outputs) the measured actual temperature to the wireless unit of the controller 16 via the wireless unit. The temperature sensor measures the temperature of the water 14 of the water sprayer 15 endlessly and in time series, and transmits (outputs) the measured temperature of the water 14 to the wireless unit of the controller 16 via the wireless unit.

  The central processing unit of the controller 16 compares the measured temperature with the temperature of the water 14 transmitted from the temperature sensor while storing the measured temperature received from the temperature sensor 30 in time series in the memory (water temperature comparison means, water temperature Comparison process). When the central processing unit determines that the temperature of the water 14 is below the range of the actually measured temperature, the central processing unit transmits the temperature transmitted from the temperature sensor 30 to the wireless unit of the water sprayer 15 and the heater 31 as the specified temperature. Alternatively, the actually measured temperature transmitted from the temperature sensor 30 is adjusted in a range of ± 5 ° C., and the adjusted temperature is transmitted to the water unit 15 and the wireless unit of the heater 31 as a specified temperature. The wireless unit outputs the received designated temperature to the control device of the heater 31. The control device of the heater 31 heats the water 14 stored in the water storage tank to a specified temperature via a heating device (water temperature adjusting means, water temperature adjusting process).

  The central processing unit of the controller 15 does not perform a comparison operation between the actually measured temperature transmitted from the temperature sensor 30 and the temperature of the water 14 transmitted from the temperature sensor, and uses the actually measured temperature as the designated temperature, and the water sprayer 15 and the heater 31. The measured temperature transmitted from the temperature sensor 30 can be adjusted within a range of ± 5 ° C., and the adjusted temperature can be transmitted as a designated temperature to the wireless unit of the water sprayer 15 and the heater 31. . In this case, the temperature sensor of the water sprayer 15 is connected to the control device of the heater 31 without being connected to the wireless unit. When the control device of the heater 31 determines that the temperature measured by the temperature sensor is equal to or lower than the specified temperature, the water 14 stored in the water tank is heated to the specified temperature via the heating device (water temperature adjusting means, water temperature adjusting process). ).

  The central processing unit of the controller 16 compares the measured relative humidity with the lower limit relative humidity while storing the measured relative humidity received from the humidity sensor 12 in the memory in time series (humidity comparison means, humidity comparison process). When the relative humidity transmitted from the sensor 12 becomes less than 95% RH (lower relative humidity) (see FIG. 5), the central processing unit sends an ON signal to the wireless watering unit 15 and the wireless unit of the heater 31 via the wireless unit. Send. The wireless unit that has received the ON signal outputs the ON signal to the control device of the water sprinkler 15. Upon receiving the ON signal, the control device of the water sprayer 15 activates the pump and starts water pouring from the spray nozzle to the surface 13 of the concrete 11 (water pouring start instruction means, water pouring start instruction process). The water 14 that is drowned from the spray nozzle of the drenching machine 15 is heated in advance to a specified temperature via a heater 31.

  When the water 14 is submerged, the water 14 permeates into the interior 27 from the surface 13 of the concrete 11 and the relative humidity near the surface 13 of the concrete 11 is recovered. When the relative humidity output from the humidity sensor 12 is saturated in the brine 14 of the water 14 (maximum display 99% RH of the humidity sensor 12) (see FIG. 5), the central processing unit of the controller 16 performs automatic flooding via the wireless unit. An OFF signal is transmitted to the wireless unit of the machine 15 and the heater 31. The wireless unit that has received the OFF signal outputs the OFF signal to the control device of the water sprinkler 15. Upon receiving the OFF signal, the control device of the water dripping machine 15 stops the pump and stops drowning the surface 11 of the concrete 11 (draft stop instructing means, dredging stop instructing process). When the relative humidity becomes lower than 95% RH (lower relative humidity) again, water dripping is started via the automatic water dripping machine 15, and when the relative humidity is saturated in the water dripping water 14, the water dripping from the water dripping machine 15 is stopped.

  When the central processing unit of the controller 16 determines that the elapsed period from the start of the curing is within the curing period, it continues the drowning start instruction means (the drowning start instruction process) and the drowning stop instruction means (the drowning stop instruction process). And execute. When the central processing unit determines that the elapsed period has passed the curing period, the central processing unit stops transmission of the ON signal and the OFF signal to the wireless unit of the water sprayer 15 and the heater 31, and the humidity sensor 12 and the temperature sensor via the wireless unit. 30, a switch stop signal is transmitted to the wireless unit to which the heater 31, the automatic water purifier 15 is connected. The humidity sensor 12, the temperature sensor 30, the heater 31, and the automatic watering machine 15 turn off the switch according to the switch stop signal and stop its operation. The central processing unit stores the flooding amount and flooding time of the water 14 in the memory in time series.

  This wet curing management system 10B and wet curing management method have the following effects in addition to the effects of the system 10A of FIG. In the wet curing management system 10B and the wet curing management method, water 14 having substantially the same temperature as the surface 13 temperature of the concrete 11 is obtained by bringing the temperature of the water 14 to be drowned close to the temperature in the vicinity of the surface 13 of the concrete 11 that generates heat during curing. The surface 13 of the concrete 11 is not rapidly cooled by the flooding, and the generation of cracks due to the rapid cooling of the surface 13 of the concrete 11 can be prevented.

  In this wet curing management system 10B and wet curing management method, the measured relative humidity of the concrete 11 stored in time series in the memory, the measured temperature of the concrete 11, the amount of flooded water 14 flooded into the concrete 11, the flooding time of the water 14 These values can be reflected in the next wet curing of the structure under a similar environment (for example, the wet curing after the next span of the lining concrete). Therefore, by applying these values to another concrete under a similar environment, an appropriate wet curing can be performed on the concrete.

  FIG. 7 is a schematic configuration diagram of a wet curing management system 10C shown as another example. The system 10C is different from that of FIG. 6 in that a plurality of humidity sensors 12A, 12B, 12C and a plurality of temperature sensors 30A, 30B, 30C are installed in the lateral direction (extending direction) of the concrete 11 at a predetermined interval. And a plurality of automatic water machines 15A, 15B, 15C and a plurality of heaters 31A, 31B, 31C are installed in the lateral direction (extending direction) of the concrete 11 at predetermined intervals. Since other configurations of the system 10C are the same as those in FIGS. 1 and 6, the same reference numerals as those of the systems 10A and 10B in FIGS. Description is omitted.

  This system 10C includes a plurality of humidity sensors 12A, 12B, and 12C, a plurality of temperature sensors 30A, 30B, and 30C, a plurality of automatic watering machines 15A, 15B, and 15C, a plurality of heaters 31A, 31B, and 31C, and a controller. 16. The humidity sensors 12A, 12B, and 12C, the temperature sensors 30A, 30B, and 30C, the automatic water machines 15A, 15B, and 15C, the heaters 31A, 31B, and 31C, and the controller 16 are the same as those of the systems 10A and 10B in FIGS. Therefore, the description thereof is omitted.

  The humidity sensors 12A, 12B, and 12C and the temperature sensors 30A, 30B, and 30C are installed in the concrete 11 inside 27 in the vicinity of the surface 13 of the concrete 11 as a pair. The pairs of the sensors 12A, 12B, 12C, 30A, 30B, and 30C are arranged at substantially equal intervals in the lateral direction of the concrete 11, but depending on the shape of the concrete 11, the environment to which the concrete 11 is exposed, etc. The arrangement of pairs of 12A, 12B, 12C, 30A, 30B, and 30C can be appropriately determined. In addition, the depth L in which the measurement parts of the humidity sensors 12A, 12B, 12C and the temperature sensors 30A, 30B, 30C are installed is the same as that of the sensors 12, 30 in FIGS. Each water sprayer 15A, 15B, 15C is installed in a position where water 14 can be drowned over the entire surface 13 of the concrete 11 corresponding to the sensors 12A, 12B, 12C, 30A, 30B, 30C.

  An example of wet curing of the concrete 11 in this system 10C will be described as follows. When the system 10C is activated, each humidity sensor 12A, 12B, 12C, each temperature sensor 30A, 30B, 30C, each automatic watering machine 15A, 15B, 15C, each heater 31A, 31B, 31C, and the controller 16 are operated. These humidity sensors 12A, 12B, and 12C measure end relative and time-series relative humidity at the location of the concrete 11 where the sensors 12A, 12B, and 12C are installed, and the measured relative humidity is measured via a wireless unit as a controller. Transmit (output) to 16 wireless units. The temperature sensors 30A, 30B, and 30C measure the temperatures at the locations of the concrete 11 where the sensors 30A, 30B, and 30C are installed in an endless and time series, and the measured actual temperatures are measured by the controller 16 via the wireless unit. Send (output) to the wireless unit. The temperature sensor measures the temperature of the water 14 of the water sprayers 15A, 15B, and 15C in an endless and time-series manner, and transmits (outputs) the measured temperature of the water 14 to the wireless unit of the controller 16 via the wireless unit.

  The central processing unit of the controller 16 compares the measured temperatures received from the temperature sensors 30A, 30B, and 30C in the memory in time series, and compares the measured temperatures with the temperature of the water 14 transmitted from the temperature sensors. (Water temperature comparison means, water temperature comparison process). The temperature sensor that measures the temperature of the water 14 to be compared with the actual temperature of the temperature sensors 30A, 30B, and 30C is installed in the water sprayers 15A, 15B, and 15C that spray the water 14 at locations corresponding to the temperature sensors 30A, 30B, and 30C. Temperature sensor. When the central processing unit determines that the temperature of the water 14 is below the range of the actually measured temperature, the water sprayers 15A, 15B, 15C and the heaters 31A, 31B, Transmit to 31C wireless unit. Alternatively, the actually measured temperatures transmitted from the temperature sensors 30A, 30B, 30C are adjusted within a range of ± 5 ° C., and the adjusted temperatures are set as designated temperatures to the wireless units of the water sprayers 15A, 15B, 15C and the heaters 31A, 31B, 31C. Send. The wireless unit outputs the received designated temperature to the control devices of the heaters 31A, 31B, 31C. The control device of the heaters 31A, 31B, 31C heats the water 14 stored in the water storage tank to a specified temperature via the heating device (water temperature adjusting means, water temperature adjusting process).

  Similar to the system 10B of FIG. 6, the central processing unit of the controller 16 compares and calculates the actually measured temperature transmitted from each temperature sensor 30A, 30B, 30C and the temperature of the water 14 transmitted from each temperature sensor. The measured temperature is transmitted to the wireless units of the water sprayers 15A, 15B, 15C and the heaters 31A, 31B, 31C as the designated temperature, or the measured temperature transmitted from the temperature sensors 30A, 30B, 30C is ± 5 ° C. The adjusted temperature can be transmitted as a designated temperature to the wireless units 15A, 15B, 15C and the heaters 31A, 31B, 31C. When the control devices of the heaters 31A, 31B, and 31C determine that the temperature measured by the temperature sensor is equal to or lower than the specified temperature, the water 14 stored in the water storage tank is heated to the specified temperature via the heating device (water temperature adjusting means) , Water temperature regulation process).

  The central processing unit of the controller 16 compares the relative humidity (measured relative humidity) and the lower limit relative humidity while storing the measured relative humidity received from each of the humidity sensors 12A, 12B, and 12C in the memory in time series ( Humidity comparison means, humidity comparison process). When the relative humidity transmitted from each of the sensors 12A, 12B, and 12C is less than 95% RH (lower relative humidity) (see FIG. 5), the central processing unit measures the relative humidity less than 95% RH via the wireless unit. An ON signal is transmitted to the wireless units of the automatic watering machines 15A, 15B, and 15C corresponding to the sensors 12A, 12B, and 12C. The wireless unit that has received the ON signal outputs the ON signal to the control devices of the water sprayers 15A, 15B, and 15C. Upon receiving the ON signal, the control device of the water sprayers 15A, 15B, 15C starts the pump and starts water pouring from the injection nozzle to the surface 11 of the concrete 11 (water pouring start instruction means, water pouring start instruction process). Water 14 which is sprayed from the spray nozzles of the water sprayers 15A, 15B and 15C is heated in advance to a specified temperature via the heaters 31A, 31B and 31C. In this system 10C, the water 14 is drowned only from the automatic watering machines 15A, 15B, and 15C corresponding to the sensors 12A, 12B, and 12C that measured the relative humidity below 95% RH, and the other sensors 12A, 12B, and 12C are supported. The water 14 is not drowned from the automatic watering machines 15A, 15B, 15C.

  When the water 14 is submerged, the water 14 permeates into the interior 27 from the surface 13 of the concrete 11 and the relative humidity near the surface 13 of the concrete 11 is recovered. When the relative humidity output from the humidity sensors 12A, 12B, and 12C is saturated in the brine 14 of the water 14 (maximum display 99% RH of the humidity sensor 12) (see FIG. 5), the central processing unit of the controller 16 Then, an OFF signal is transmitted to the wireless units of the automatic watering machines 15A, 15B, and 15C in the submerged water. The wireless unit that has received the OFF signal outputs the OFF signal to the control devices of the water sprayers 15A, 15B, and 15C. Upon receiving the OFF signal, the control device of the water sprayers 15A, 15B, 15C stops the pump and stops water pouring on the surface 11 of the concrete 11 (water dripping stop instruction means, dredging stop instruction process). In this system 10C, drowning from only the automatic water machines 15A, 15B, and 15C corresponding to the sensors 12A, 12B, and 12C that measure the saturation of relative humidity is stopped, and the automatic that corresponds to the other sensors 12A, 12B, and 12C is stopped. The drowning from the dredgers 15A, 15B, 15C is not stopped. When the relative humidity becomes less than 95% RH (lower relative humidity) again, the water is started through the automatic water sprayers 15A, 15B, 15C, and when the relative humidity is saturated in the water of the water 14, the water sprayers 15A, 15B, Stop flooding from 15C.

  When the central processing unit of the controller 16 determines that the elapsed period from the start of the curing is within the curing period, it continues the drowning start instruction means (the drowning start instruction process) and the drowning stop instruction means (the drowning stop instruction process). And execute. When the central processing unit determines that the elapsed period has passed the curing period, the central processing unit stops the transmission of the ON signal and the OFF signal to the wireless units of the water sprayers 15A, 15B, 15C and the heaters 31A, 31B, 31C, and the wireless unit The switch stop signal is transmitted to each wireless unit to which the humidity sensors 12A, 12B, and 12C, the temperature sensors 30A, 30B, and 30C, the heaters 31A, 31B, and 31C, and the automatic water sprayers 15A, 15B, and 15C are connected. Each humidity sensor 12A, 12B, 12C, each temperature sensor 30A, 30B, 30C, each heater 31A, 31B, 31C, each automatic watering machine 15A, 15B, 15C turn off the switch according to the switch stop signal and stop its operation. To do. The central processing unit stores the flooding amount and flooding time of the water 14 in the memory in time series.

  This wet curing management system 10C and wet curing management method have the following effects in addition to the effects of the systems 10A and 10B shown in FIG. 1 and FIG. In the wet curing management system 10C and the wet curing management method, the measured relative humidity output from each of the humidity sensors 12A, 12B, and 12C is compared with a preset lower limit relative humidity, and output from the humidity sensors 12A, 12B, and 12C. When the measured relative humidity is less than the lower limit relative humidity, water 14 is flooded onto the surface 13 of the concrete 11 at locations corresponding to the humidity sensors 12A, 12B, and 12C. The entire surface 13 of the concrete 11 can be kept at an optimum humidity while responding to a local change in the external environment to which the concrete 11 is exposed, and the concrete 11 is kept in an optimally maintained humidity throughout the surface 13. Can be wet-cured. The wet curing management system 10C and the wet curing management method correspond to the humidity sensors 12A, 12B, and 12C that measure the saturated measured relative humidity when the measured relative humidity output from the humidity sensors 12A, 12B, and 12C is saturated. Since the flooding of the water 14 is stopped at the location, it is possible to optimally maintain the humidity of the entire surface 13 of the concrete 11 with the minimum amount of water 14 while dealing with local changes in the external environment to which the concrete 11 is exposed. it can.

  The wet curing management system 10C and the wet curing management method output the temperature of the water 14 flooded on the surface 13 of the concrete 11 at locations corresponding to the temperature sensors 30A, 30B, 30C from the temperature sensors 30A, 30B, 30C. Since the concrete is heated to the vicinity of the actually measured temperature, even if the concrete 11 is increased in size, the concrete that has generated heat during the curing while maintaining the temperature of the submerged water 14 while responding to local changes in the external environment to which the concrete 11 is exposed. 11, and water 14 having substantially the same temperature as the concrete 11 can be flooded over the entire surface 13 of the concrete 11. In the wet curing management system 10C and the wet curing management method, the surface 13 of the concrete 11 is not rapidly cooled by flooding, and the generation of cracks due to the rapid cooling of the surface 13 of the concrete 11 can be prevented.

  In these wet curing management systems 10A, 10B, and 10C and the wet curing management method, the water 14 is submerged using the automatic watering machine 15, but the measured relative humidity transmitted from the humidity sensor 12 is less than the lower limit relative humidity. At that time, the controller 16 may display a flooding start message on the display 29, so that the operator can flood the water manually. When the measured relative humidity transmitted from the humidity sensor 12 is saturated, the controller 16 displays a drowning stop message on the display 29, whereby the operator stops drowning.

  In the wet curing management systems 10A, 10B, 10C and the wet curing management method, the measured relative humidity and the measured temperature from the sensors 12 and 31 are transmitted to the controller 16 by radio, and an ON signal and an OFF signal from the controller 16 are designated. The temperature is wirelessly transmitted to the water sprayer 15 and the heater 31, but the sensors 12 and 30 and the controller 16 can be connected by wire, and the controller 16 and the water heater 15 and the heater 31 can be connected by wire. The wireless unit can be omitted. Further, in the wet curing management system 10C and the wet curing management method shown in FIG. 7, a plurality of water sprayers 15A, 15B, and 15C are used, but one water sprayer is disposed so as to be movable via the guide rail. It is also possible to move to a location corresponding to the humidity sensors 12A, 12B, and 12C where the relative humidity is less than 95% RH, and to inject water 14 onto the surface 13 of the concrete 11 at the moved location. The wet curing management systems 10A, 10B, and 10C and the wet curing management method can be used not only for wet curing of concrete but also for wet curing of mortar.

The schematic block diagram of the wet curing management system shown as an example. AA sectional view taken on the line AA of FIG. The perspective view of the humidity sensor shown as an example. FIG. 4 is an end view taken along line BB in FIG. 3. The figure which shows an example of the relationship between relative humidity and elapsed time. The schematic block diagram of the wet curing management system shown as another example. The schematic block diagram of the wet curing management system shown as another example.

Explanation of symbols

10A-10C Wet curing management system 11 Concrete (hardened cement)
12 Humidity sensor 13 Surface 14 Water 15 Automatic watering machine (watering mechanism)
16 Controller 17 Case 18 Measurement Unit 19 Lead Wire 20 Storage Unit 22 Opening 25 Waterproof Film 26 Film 27 Inside 30 Temperature Sensor 31 Heater (Heating Mechanism)

Claims (14)

In a wet curing management system that performs wet curing of the cement cured product while managing the wet state of the cement cured product,
The system is formed from a humidity sensor installed at a predetermined depth from the surface of the hardened cement to the inside of the hardened cement, a flooding mechanism for pouring water onto the surface of the hardened cement, and a controller. And
Humidity comparison means for comparing the measured relative humidity output from the humidity sensor with a preset lower limit relative humidity, and the flooding mechanism when the measured relative humidity is less than the lower limit relative humidity. When the measured relative humidity output from the humidity sensor is saturated in the submerged water by the submergence mechanism, and when the measured relative humidity output from the humidity sensor is saturated, A wet curing management system comprising: a flooding stop instruction means for stopping flooding of water.   The curing period corresponding to the type of cement and the curing temperature is stored in the controller, and the controller executes the flooding start instruction unit and the flooding stop instruction unit until the curing period elapses. The described wet curing management system.   The wet curing management system includes a temperature sensor installed at a predetermined depth from the surface of the hardened cement material toward the inside of the hardened cement material, and a heating mechanism that heats the water submerged from the submersion mechanism. 3. The controller according to claim 1, wherein the controller includes a water temperature adjusting unit that heats the temperature of the water that is drowned from the drowning mechanism to the vicinity of the actually measured temperature that is output from the temperature sensor via the heating mechanism. Wet curing management system.   A plurality of the humidity sensors are installed at predetermined intervals in the extending direction of the hardened cement material, and the humidity comparison unit compares the measured relative humidity output from each humidity sensor with a preset lower limit relative humidity. Then, in the flooding start instruction means, when the measured relative humidity output from each humidity sensor becomes less than the lower limit relative humidity, the surface of the hardened cement material is flooded on the surface corresponding to the humidity sensor. The flooding stop instructing means stops flooding of water at a location corresponding to the humidity sensor that has measured the measured actual relative humidity when the measured relative humidity output from each humidity sensor is saturated. 3. The wet curing management system according to any one of 3.   A plurality of the temperature sensors are installed at predetermined intervals in the extending direction of the cement hardened material, and the water temperature adjusting means is a temperature of water to be drowned on the surface of the cement hardened material at a location corresponding to each temperature sensor. The wet curing management system according to any one of claims 2 to 4, wherein the system is heated to the vicinity of the actually measured temperature output from the temperature sensors.   The depth at which the humidity sensor is installed is in a range of 1 cm to 5 cm from the surface of the hardened cement to the inside of the hardened cement, and the lower relative humidity is 95% RH. Item 6. The wet curing management system according to any one of Items 5.   The depth at which the temperature sensor is installed is in a range of 1 cm to 5 cm from the surface of the hardened cement to the inside of the hardened cement, and the temperature of water heated by the heating mechanism is from the temperature sensor. The wet curing management system according to any one of claims 2 to 6, wherein the wet curing management system is in a range of ± 5 ° C across the measured actual temperature to be output. In a wet curing management method for performing wet curing of the cement cured product while managing the wet state of the cement cured product,
The wet curing management method includes a humidity sensor installed at a predetermined depth from the surface of the hardened cement to the inside of the hardened cement, a water proofing mechanism for pouring water on the surface of the hardened cement, and a controller. And
A humidity comparison process in which the controller compares the measured relative humidity output from the humidity sensor with a preset lower limit relative humidity, and when the measured relative humidity becomes less than the lower limit relative humidity, the flooding mechanism When the measured relative humidity output from the humidity sensor is saturated in the submersion start process and the submergence mechanism by submerging the surface of the hardened cement material through the submergence mechanism. A wet curing management method comprising: executing a submergence stop instruction process for stopping submergence of water.   9. The controller stores a curing period corresponding to a cement type and a curing temperature, and the controller executes the flooding start instruction process and the flooding stop instruction process until the curing period elapses. The wet curing management method as described.   The wet curing management method includes a temperature sensor installed at a predetermined depth from the surface of the hardened cement product toward the inside of the hardened cement product, and a heating mechanism for heating water that is submerged from the submersion mechanism. 10. The controller according to claim 8, wherein the controller executes a water temperature adjustment process in which the temperature of water drowned from the drowning mechanism is heated through the heating mechanism in the vicinity of the actually measured temperature output from the temperature sensor. The wet curing management method as described.   A plurality of the humidity sensors are installed at predetermined intervals in the extending direction of the hardened cement material, and in the humidity comparison process, the measured relative humidity output from each humidity sensor is compared with a preset lower limit relative humidity. In the water filling start instruction process, when the measured relative humidity output from each humidity sensor becomes less than the lower limit relative humidity, the surface of the hardened cement material is flooded at the location corresponding to the humidity sensor. 9. In the flooding stop instruction process, when the measured relative humidity output from each humidity sensor is saturated, the flooding of water is stopped at a location corresponding to the humidity sensor that has measured the saturated measured relative humidity. 10. The wet curing management method according to any one of 10.   A plurality of the temperature sensors are installed at a predetermined interval in the extending direction of the cement hardened material, and in the water temperature adjustment process, the temperature of water to be flooded on the surface of the cement hardened material at a location corresponding to each temperature sensor The wet curing management method according to any one of claims 9 to 11, wherein the heat is heated to the vicinity of the actually measured temperature output from the temperature sensors.   The depth at which the humidity sensor is installed is in a range of 1 cm to 5 cm from the surface of the hardened cement to the inside of the hardened cement, and the lower relative humidity is 95% RH. Item 13. The wet curing management method according to any one of Items 12.   The depth at which the temperature sensor is installed is in a range of 1 cm to 5 cm from the surface of the hardened cement to the inside of the hardened cement, and the temperature of water heated by the heating mechanism is from the temperature sensor. The wet curing management method according to claim 9, wherein the wet curing management method is within a range of ± 5 ° C. across the output measured temperature.

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