CN110984599A - Concrete spraying and curing method - Google Patents
Concrete spraying and curing method Download PDFInfo
- Publication number
- CN110984599A CN110984599A CN201911029920.5A CN201911029920A CN110984599A CN 110984599 A CN110984599 A CN 110984599A CN 201911029920 A CN201911029920 A CN 201911029920A CN 110984599 A CN110984599 A CN 110984599A
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- Prior art keywords
- concrete
- spray
- water
- curing
- temperature
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/24—Safety or protective measures preventing damage to building parts or finishing work during construction
- E04G21/246—Safety or protective measures preventing damage to building parts or finishing work during construction specially adapted for curing concrete in situ, e.g. by covering it with protective sheets
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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
- C04B40/02—Selection of the hardening environment
- C04B40/0277—Hardening promoted by using additional water, e.g. by spraying water on the green concrete element
Abstract
The invention discloses a concrete spray curing method, which is used for curing concrete, and compared with the methods of manual watering, film laying or concrete curing agent laying and the like, the curing cost is greatly reduced; compared with manual sprinkling, the construction condition of the operation surface of the lower-layer structure is improved, and water resources are saved; in the normal maintenance process, 90% of water can be saved, manual operation is not needed, and the safety of maintenance operation is improved; selecting a water pump with proper power according to the height of the large-volume concrete to be constructed, so that the water pipe arranged on the template has enough water pressure and can spray water mist; by adopting the method, all maintenance work can be finished by one person, and the concrete can be continuously maintained for 24 hours.
Description
Technical Field
The invention belongs to the technical field of constructional engineering, and particularly relates to a concrete spraying and curing method.
Background
The high-rise building mostly adopts concrete frame and shear wall structure, and this kind of concrete vertical member need carry out the maintenance of a period before its concrete solidifies, need keep the concrete moist throughout in the maintenance process, and among the prior art, the maintenance of job site to the concrete is generally accomplished by artifical watering (water supply) or artifical power on and water feeding operation spray line, and this kind of maintenance mode has the problem in several aspects below: manual watering is not standard. In order to keep the surface of concrete moist in a standard curing period after pouring and fully dissipate hydration heat, generally, early-stage watering is frequent, later-stage watering frequency is reduced, on-site manual watering is difficult to achieve on-time watering, watering time is often missed, and watering frequency is reduced, especially at night. The temperature and humidity are not accurately controlled. The environmental temperature and humidity on the surface of a maintenance structure are monitored regularly according to the maintenance regulation requirements (the internal temperature needs to be monitored even if mass coagulation is carried out), so that the humidity and the environmental temperature are judged, measures are taken for maintenance, the temperature is monitored on site in an irregular mode, the humidity is not monitored basically, and timely maintenance is difficult to achieve according to the temperature and humidity conditions. The water consumption for maintenance is insufficient or excessive. The amount of water sprayed depends on the volume and the surface area of the beam body, the maintenance effect is poor when the water is sprayed too little (the wetting degree is not enough or the water cannot permeate into the interior), the water resource is wasted when the water is sprayed too much, and the quality defects of color loss, water marks and the like are caused when the early surface strength of the concrete is low due to excessive water spraying. The maintenance efficiency is low. Manual maintenance needs special personnel to complete, generally, 1-2 special maintenance workers are needed for beam yards with more than 12 pedestals, more maintenance workers are needed in the production peak period, and therefore maintenance cost is high, and maintenance efficiency is low. The maintenance of bulky concrete generally all needs to take monitoring measures, and artifical test temperature and humidity, whether the analysis judgement carries out inside water supply cooling and surperficial watering and moisturizing. If the concrete is not properly cured (workers do not cure the concrete timely), the concrete member is usually cured by covering a gunny bag or a plastic film and manually spraying water, but the method has the following defects of uneven and untimely spraying of water, particularly high-grade concrete, the concrete is easy to crack and the strength is low due to the untimely and uneven spraying of water; secondly, tap water is mostly adopted, and water resources are wasted; thirdly, the labor intensity is high, and the human resources are consumed.
Disclosure of Invention
The invention aims to provide a concrete spraying and curing method, which solves the problems of time and labor consumption of concrete curing work in the prior art.
The technical scheme adopted by the invention is as follows: a concrete spraying maintenance method comprises the following steps:
step 1: construction preparation is carried out, and then a power supply is switched on;
step 2: wrapping geotextile on the concrete structure, and wrapping a plastic film on the pier body of the concrete structure;
and step 3: adjusting the support frame to support a top wall connected with the concrete vertical wall to be maintained, and adjusting the angle of the spray header to enable the spray header to face the concrete vertical wall to be maintained;
and 4, step 4: respectively installing the water supply mechanism, the deformed steel bar bracket and the spraying assembly on the concrete structure;
and 5: the supporting frame supports a top wall connected with the concrete vertical wall to be maintained, and the angle of the spray header is adjusted to enable the spray header to face the concrete vertical wall to be maintained;
step 6, installing the time relay and setting parameters of the time relay;
step 7, starting the water supply mechanism to circularly spray the concrete structure;
and 8: recording the number of curing days and curing effect, and adjusting the sprayed water amount in time.
Step 7, after the water pump is started, observing for at least 10 minutes, gradually adjusting the spraying amount according to the observation condition until the wall surface is wet and water is not accumulated on the ground, opening each spraying head and adjusting the water amount, wherein the water amount is continuously sprayed;
the wall surface is provided with at least 2 spray heads, each spray head carries out maintenance spraying work, each spray head is provided with a spray pipeline, each spray pipeline is communicated with a water supply sedimentation tank for maintenance, and each spray pipeline is controlled to be opened and closed by adopting an electromagnetic valve.
And switching on a power supply, adjusting the set temperature of the controller according to the temperatures required in different seasons, and measuring the temperature in the temperature pool through the temperature sensor.
When the temperature value is higher than the set temperature, the power supply is switched off, and when the temperature value is lower than the set temperature, the power supply is switched on, and the electric heating method heats the water in the heat preservation tank.
The invention has the beneficial effects that:
the combination of the vertical concrete member curing method and the vertical concrete member curing method can effectively cure the vertical concrete member, avoid the concrete member from cracking, improve the strength of the concrete member and save water resources and manpower resources. The invention has wide applicability and can be used for concrete spraying maintenance construction with various section sizes. The concrete curing uniformity is good, the curing is carried out by means of a pipeline type concrete curing method, a manual point type sequential watering mode is avoided, the simultaneous curing of multiple working faces can be realized, the concrete is in a wet state for a long time according to the strength development characteristics of the concrete, the uniformity is strong, and the curing quality of the concrete can be ensured; by adopting conventional watering maintenance, the mechanical property development is slow after the thin-wall large-volume concrete is poured, and the concrete wall adopting the maintenance method can reach the tensile strength according to the requirement, thereby greatly accelerating the construction progress and reducing the investment of later manpower and material resources.
Detailed Description
The present invention will be described in detail with reference to the following embodiments.
A concrete spraying maintenance method comprises the following steps:
step 1: construction preparation is carried out, and then a power supply is switched on;
step 2: wrapping geotextile on the concrete structure, and wrapping a plastic film on the pier body of the concrete structure;
and step 3: adjusting the support frame to support a top wall connected with the concrete vertical wall to be maintained, and adjusting the angle of the spray header to enable the spray header to face the concrete vertical wall to be maintained;
and 4, step 4: respectively installing the water supply mechanism, the deformed steel bar bracket and the spraying assembly on the concrete structure;
and 5: the supporting frame supports a top wall connected with the concrete vertical wall to be maintained, and the angle of the spray header is adjusted to enable the spray header to face the concrete vertical wall to be maintained;
step 6, installing the time relay and setting parameters of the time relay;
step 7, starting the water supply mechanism to circularly spray the concrete structure;
and 8: recording the number of curing days and curing effect, and adjusting the sprayed water amount in time.
Step 7, after the water pump is started, observing for at least 10 minutes, gradually adjusting the spraying amount according to the observation condition until the wall surface is wet and water is not accumulated on the ground, opening each spraying head and adjusting the water amount, wherein the water amount is continuously sprayed;
the wall surface is provided with at least 2 spray heads, each spray head carries out maintenance spraying work, each spray head is provided with a spray pipeline, each spray pipeline is communicated with a water supply sedimentation tank for maintenance, and each spray pipeline is controlled to be opened and closed by adopting an electromagnetic valve.
And switching on a power supply, adjusting the set temperature of the controller according to the temperatures required in different seasons, and measuring the temperature in the temperature pool through the temperature sensor.
When the temperature value is higher than the set temperature, the power supply is switched off, and when the temperature value is lower than the set temperature, the power supply is switched on, and the electric heating method heats the water in the heat preservation tank.
Adjusting the set temperature of the controller according to the temperatures required in different seasons, and measuring the temperature in the temperature pool through the temperature sensor; when the temperature value is higher than the set temperature, the power supply is switched off, and when the temperature value is lower than the set temperature, the power supply is switched on, and the electric heating method heats the water in the heat preservation tank to reach the set temperature of the controller; when the temperature reaches the set temperature of the controller, the controller sends a signal to the spraying method to indicate the pump to start working, and the water in the heat preservation pool is sprayed out from the spraying head through the spraying pipe and is uniformly sprayed on the mass concrete to be maintained.
When the method is used for concrete maintenance, compared with the methods of manual watering, film laying or concrete curing agent laying and the like, the maintenance cost is greatly reduced; compared with manual sprinkling, the construction condition of the operation surface of the lower-layer structure is improved, and water resources are saved; in the normal maintenance process, 90% of water can be saved, manual operation is not needed, and the safety of maintenance operation is improved; selecting a water pump with proper power according to the height of the large-volume concrete to be constructed, so that the water pipe arranged on the template has enough water pressure and can spray water mist; by adopting the method, all maintenance work can be finished by one person, and the concrete can be continuously maintained for 24 hours.
Claims (5)
1. The concrete spraying and curing method is characterized by comprising the following steps:
step 1: construction preparation is carried out, and then a power supply is switched on;
step 2: wrapping geotextile on the concrete structure, and wrapping a plastic film on the pier body of the concrete structure;
and step 3: adjusting the support frame to support a top wall connected with the concrete vertical wall to be maintained, and adjusting the angle of the spray header to enable the spray header to face the concrete vertical wall to be maintained;
and 4, step 4: respectively installing the water supply mechanism, the deformed steel bar bracket and the spraying assembly on the concrete structure;
and 5: the supporting frame supports a top wall connected with the concrete vertical wall to be maintained, and the angle of the spray header is adjusted to enable the spray header to face the concrete vertical wall to be maintained;
step 6, installing the time relay and setting parameters of the time relay;
step 7, starting the water supply mechanism to circularly spray the concrete structure;
and 8: recording the number of curing days and curing effect, and adjusting the sprayed water amount in time.
2. The concrete spray curing method according to claim 1, wherein in step 7, after the water pump is started, observation is carried out for at least 10 minutes, and the spray amount is gradually adjusted according to the observation condition until the wall surface is wet and water is not accumulated on the ground, so as to open each spray header and adjust the water amount, wherein the water amount is continuously sprayed.
3. The concrete spraying and curing method according to claim 1, wherein at least 2 spray heads are arranged on the wall surface, each spray head performs curing and spraying operation, each spray head is provided with a spray pipe, each spray pipe is communicated with a water supply sedimentation tank for curing, and each spray pipe is controlled to be opened and closed by an electromagnetic valve.
4. The concrete spray curing method as claimed in claim 1, wherein the controller is set to adjust the temperature according to the temperature required in different seasons by switching on the power supply, and the temperature in the temperature tank is measured by the temperature sensor.
5. The concrete spray curing method as claimed in claim 4, wherein the power is turned off when the temperature value is higher than the set temperature, and the power is turned on when the temperature value is lower than the set temperature, and the electric heating method heats the water in the thermal insulation tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911029920.5A CN110984599A (en) | 2019-10-25 | 2019-10-25 | Concrete spraying and curing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911029920.5A CN110984599A (en) | 2019-10-25 | 2019-10-25 | Concrete spraying and curing method |
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| CN110984599A true CN110984599A (en) | 2020-04-10 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113173803A (en) * | 2021-06-08 | 2021-07-27 | 中建安装集团有限公司 | Cement-based material maintenance system and method for water purification plant |
| CN115341773A (en) * | 2022-07-07 | 2022-11-15 | 中交二航局第二工程有限公司 | High-pressure spray maintenance system applied to mass concrete pier body |
| CN115819112A (en) * | 2022-11-28 | 2023-03-21 | 中国十七冶集团有限公司 | Maintenance equipment for mass concrete and construction method thereof |
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| KR20060055285A (en) * | 2005-01-26 | 2006-05-23 | (주)태원종합기술단건축사사무소 | Injection equipment for water for curing concrete |
| CN103696580A (en) * | 2013-12-12 | 2014-04-02 | 南京航空航天大学 | Vertical thin-walled mass concrete spray maintenance device and method thereof |
| CN104389429A (en) * | 2014-10-15 | 2015-03-04 | 中建四局第六建筑工程有限公司 | Intelligent garden type concrete spray maintenance device and concrete maintenance method thereof |
| KR101644111B1 (en) * | 2015-12-07 | 2016-07-29 | 권영덕 | (Apparatus For Curing Concrete Structure |
| CN107246156A (en) * | 2017-07-20 | 2017-10-13 | 北京城建远东建设投资集团有限公司 | The spray maintenance device of in-situ concrete wall and maintenance process |
| CN108316154A (en) * | 2018-03-27 | 2018-07-24 | 中铁十局集团第二工程有限公司 | A kind of pier shaft concrete sprinkling curing system and concrete spray maintenance process |
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2019
- 2019-10-25 CN CN201911029920.5A patent/CN110984599A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20060055285A (en) * | 2005-01-26 | 2006-05-23 | (주)태원종합기술단건축사사무소 | Injection equipment for water for curing concrete |
| CN103696580A (en) * | 2013-12-12 | 2014-04-02 | 南京航空航天大学 | Vertical thin-walled mass concrete spray maintenance device and method thereof |
| CN104389429A (en) * | 2014-10-15 | 2015-03-04 | 中建四局第六建筑工程有限公司 | Intelligent garden type concrete spray maintenance device and concrete maintenance method thereof |
| KR101644111B1 (en) * | 2015-12-07 | 2016-07-29 | 권영덕 | (Apparatus For Curing Concrete Structure |
| CN107246156A (en) * | 2017-07-20 | 2017-10-13 | 北京城建远东建设投资集团有限公司 | The spray maintenance device of in-situ concrete wall and maintenance process |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113173803A (en) * | 2021-06-08 | 2021-07-27 | 中建安装集团有限公司 | Cement-based material maintenance system and method for water purification plant |
| CN113173803B (en) * | 2021-06-08 | 2024-03-26 | 中建安装集团有限公司 | Cement-based material maintenance system and method for water purification plant |
| CN115341773A (en) * | 2022-07-07 | 2022-11-15 | 中交二航局第二工程有限公司 | High-pressure spray maintenance system applied to mass concrete pier body |
| CN115819112A (en) * | 2022-11-28 | 2023-03-21 | 中国十七冶集团有限公司 | Maintenance equipment for mass concrete and construction method thereof |
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Application publication date: 20200410 |