CN101285308B - Device and method for controlling temperature of concrete curing water - Google Patents
Device and method for controlling temperature of concrete curing water Download PDFInfo
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- CN101285308B CN101285308B CN2008100989013A CN200810098901A CN101285308B CN 101285308 B CN101285308 B CN 101285308B CN 2008100989013 A CN2008100989013 A CN 2008100989013A CN 200810098901 A CN200810098901 A CN 200810098901A CN 101285308 B CN101285308 B CN 101285308B
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- temperature
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- curing water
- heater
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0096—Provisions for indicating condition of the compositions or the final products, e.g. degree of homogeneous mixing, degree of wear
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention provides a device for controlling the temperature of concrete curing water, comprising a curing pond and a curing water spray head extending from the curing pond. The device is characterized in that a curing water piping is provided inside with a cross-flow type heater, a power supply of which is connected with a control mechanism; the concrete needing to be cured is provided with a temperature sensor, an output of which is connected with a power supply control mechanism of the heater. The method of using the device is as follows: the curing water piping is provided inside with the cross-flow type heater, the power supply of which is connected with the control mechanism; the concrete needing to be cured is provided with the temperature sensor, the output of which is connected with the power supply control mechanism of the heater; in each curing, the control mechanism can control the on-off of the curing water heater according to the temperature of the concrete, when the water temperature reaches a proper temperature, the water spray curing starts. The device can control the temperature difference between the temperature of the concrete curing water and the internal temperature of the concrete within 25 DEG C, thereby ensuring the concrete surface not to break due to the snap chilling of the curing water.
Description
Technical field
The application relates to a kind of concrete construction technology, is specifically related to a kind of concrete curing water Temperature-controlled appliance and uses the control concrete curing water temperature methods of this equipment.
Background technology
Temperature difference between inside and outside concrete also is one of major reason that causes concrete cracking.The measure of control temperature difference between inside and outside concrete comprises the temperature rise of reduction hydration heat of concrete, reduces concrete molding temperature, concrete external insulation, inside concrete water flowing cooling etc.
Usually adopt tap water, river, underground water etc. to carry out concrete curing in the engineering site work progress.Generally phreatic temperature is at 10 ℃～20 ℃, and with seasonal fluctuation down.If directly adopt the water about these 20 ℃ that concrete structure is carried out maintenance, just may exist concrete cold shock, in moment or a period of time, cause temperature difference between inside and outside concrete to surpass 25 ℃, cause concrete cracking.
Summary of the invention
For the curing water temperature being helped the control of anti-cracking concrete, the purpose of this invention is to provide a kind of concrete curing water Temperature-controlled appliance and use this equipment control concrete curing water method of temperature.The operating principle of this method is concrete structure internal temperature and the environment temperature according to required maintenance, and control curing water heating reaches safe temperature, is no more than 25 ℃ and help the concrete heat radiation to guarantee temperature difference between inside and outside concrete.
The technical scheme of finishing the foregoing invention task is that a kind of concrete curing water Temperature-controlled appliance is provided with the maintenance pond and reaches the curing water shower nozzle of drawing from this pond, it is characterized in that, is provided with the overflow-type heater in the curing water pipeline; The power supply of this heater is connected with controlling organization; Needing on the concrete of maintenance temperature pick up to be set, the output of this temperature pick up is connected with the power controling machine structure of heater.
Described controlling organization can be control chip or single-chip microcomputer, and the relay that is connected with this control chip or single-chip microcomputer.
A kind of concrete curing water temperature-controlled process is characterized in that step is as follows:
The overflow-type heater is set in the curing water pipeline; The power supply of this heater is connected with controlling organization;
Needing on the concrete of maintenance temperature pick up to be set, the output of this temperature pick up is connected with the power controling machine structure of heater;
Before each maintenance, controlling organization when water temperature reaches proper temperature, begins wet curing according to the switch of concrete temperature control curing water heater.
The operating principle See Figure of this system.By detecting the concrete internal temperature of maintenance section, set the temperature of required curing water, make the curing water temperature reach setting value by the overflow-type heater, water temperature and the concrete internal temperature difference from the ejection of curing water shower nozzle will be no more than 25 ℃ this moment, thereby avoid ftractureing because of the low excessively cold shock that causes of curing water temperature.
The curing water desired temperature can calculate according to following formula:
T
W＝T
C-|T
C-T
E|/2
In the formula:
T
WBe the curing water desired temperature, ℃.
T
CBe concrete internal temperature, ℃.
T
EBe the concrete structure environment temperature, ℃.
According to above establishing method, analyze 20 kinds of simulated conditions, see the following form.20 kinds of operating modes of simulation have represented concrete temperature in 20 ℃～60 ℃ scopes, and environment temperature according to curing water temperature establishing method, is calculated the situation of inside and outside temperature difference in 10 ℃～40 ℃ scopes.
As can be seen from the table, adopt this control method the temperature of concrete curing water can be controlled at and differ in the scope that is no more than 25 ℃, guarantee that concrete surface can not cause cracking because of the curing water cold shock with concrete internal temperature.When the 17th kind of operating mode occurred, the curing water and the inside concrete temperature difference reached maximum value, but still in allowed band.
Simulated condition is analyzed
| Operating mode | TC | TE | TW | ΔT |
| 1 | 20 | 10 | 15 | -5 |
| 2 | 20 | 20 | 20 | 0 |
| 3 | 20 | 30 | 15 | -5 |
| 4 | 20 | 40 | 10 | -10 |
| 5 | 30 | 10 | 20 | -10 |
| 6 | 30 | 20 | 25 | -5 |
| 7 | 30 | 30 | 30 | 0 |
| 8 | 30 | 40 | 25 | -5 |
| 9 | 40 | 10 | 25 | -15 |
| 10 | 40 | 20 | 30 | -10 |
| 11 | 40 | 30 | 35 | -5 |
| 12 | 40 | 40 | 40 | 0 |
| 13 | 50 | 10 | 30 | -20 |
| 14 | 50 | 20 | 35 | -15 |
| 15 | 50 | 30 | 40 | -10 |
| 16 | 50 | 40 | 45 | -5 |
| 17 | 60 | 10 | 35 | -25 |
| 18 | 60 | 20 | 40 | -20 |
| 19 | 60 | 30 | 45 | -15 |
| 20 | 60 | 40 | 50 | -10 |
Description of drawings
Fig. 1 is a curing water temperature control system schematic diagram.
The specific embodiment
Embodiment 1, with reference to Fig. 1: the concrete curing water Temperature-controlled appliance, the curing water shower nozzle 2 that is provided with maintenance pond 1 and draws from this pond, in the curing water pipeline, be provided with heater 3, the power supply of heater 3 is provided with the relay of its switch of control, and the relay of this control heater power switch is connected with a control chip.Need the concrete 4 of maintenance to be provided with temperature pick up 5, the output of this temperature pick up 5 is connected with control chip; Be provided with control software in the chip, software can go out curing water according to the data computation of temperature pick up 5, and whether needs heat.Before each maintenance, controlling organization when water temperature reaches proper temperature, begins wet curing according to the switch of concrete temperature control curing water heater 3.
Claims (1)
1. a concrete curing water Temperature-controlled appliance is provided with the maintenance pond and reaches the curing water shower nozzle of drawing from this pond, it is characterized in that, is provided with the overflow-type heater in this curing water pipeline; The power supply of this heater is connected with controlling organization; Needing on the concrete of maintenance temperature pick up to be set, the output of this temperature pick up is connected with the power controling machine structure of heater;
Described controlling organization is control chip or single-chip microcomputer, and the relay that is connected with this control chip or single-chip microcomputer;
The concrete operations step is as follows:
The overflow-type heater is set in the curing water pipeline; The power supply of this heater is connected with controlling organization;
Needing on the concrete of maintenance temperature pick up to be set, the output of this temperature pick up is connected with the power controling machine structure of heater;
Before each maintenance, controlling organization when water temperature reaches proper temperature, begins wet curing according to the switch of concrete temperature control curing water heater;
This moment, water temperature and the concrete internal temperature difference from the ejection of curing water shower nozzle was no more than 25 ℃;
The curing water desired temperature calculates according to following formula:
T
W＝T
C-|T
C-T
E|/2
In the formula:
T
WBe the curing water desired temperature, ℃;
T
CBe concrete internal temperature, ℃;
T
EBe the concrete structure environment temperature, ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100989013A CN101285308B (en) | 2008-05-09 | 2008-05-09 | Device and method for controlling temperature of concrete curing water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100989013A CN101285308B (en) | 2008-05-09 | 2008-05-09 | Device and method for controlling temperature of concrete curing water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101285308A CN101285308A (en) | 2008-10-15 |
| CN101285308B true CN101285308B (en) | 2011-05-25 |
Family
ID=40057699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100989013A Active CN101285308B (en) | 2008-05-09 | 2008-05-09 | Device and method for controlling temperature of concrete curing water |
Country Status (1)
| Country | Link |
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| CN (1) | CN101285308B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202771289U (en) * | 2012-09-11 | 2013-03-06 | 葛洲坝集团试验检测有限公司 | Intermittent on-off type large size concrete cooling water-diversion control system |
| CN102966242A (en) * | 2012-12-10 | 2013-03-13 | 中国建筑第八工程局有限公司 | Wall maintaining method based on automatic temperature measurement and temperature stress reduction |
| CN103696580B (en) * | 2013-12-12 | 2016-08-24 | 盐城工学院 | A kind of vertical thin-walled mass concrete spray maintenance device and method thereof |
| CN104985681B (en) * | 2015-07-22 | 2017-07-04 | 中铁隧道集团四处有限公司 | Concrete automatic maintenance device |
| CN106677521A (en) * | 2016-11-23 | 2017-05-17 | 中国水利水电科学研究院 | Formworks for concrete pouring and with an atomizing device and storehouse surface temperature controlling system applying same |
| CN110687839A (en) * | 2019-09-19 | 2020-01-14 | 中铁工程装备集团隧道设备制造有限公司 | Wet spraying trolley communication interconnection control device and wet spraying trolley pumping system |
| CN111460720A (en) * | 2020-04-07 | 2020-07-28 | 中国水利水电科学研究院 | Concrete structure maintenance method, device, system and storage medium |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2064517U (en) * | 1990-01-24 | 1990-10-24 | 上海铁路分局第一工程公司 | Concrete controlling device for use on indoor temp. humidity in standard maintaining condition |
-
2008
- 2008-05-09 CN CN2008100989013A patent/CN101285308B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2064517U (en) * | 1990-01-24 | 1990-10-24 | 上海铁路分局第一工程公司 | Concrete controlling device for use on indoor temp. humidity in standard maintaining condition |
Non-Patent Citations (1)
| Title |
|---|
| 张宝忠.大体积混凝土温度裂缝的控制.《工业建筑》.2007,第37卷951-953. * |
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|---|---|
| CN101285308A (en) | 2008-10-15 |
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