CN102966242A - Wall maintaining method based on automatic temperature measurement and temperature stress reduction - Google Patents
Wall maintaining method based on automatic temperature measurement and temperature stress reduction Download PDFInfo
- Publication number
- CN102966242A CN102966242A CN2012105286699A CN201210528669A CN102966242A CN 102966242 A CN102966242 A CN 102966242A CN 2012105286699 A CN2012105286699 A CN 2012105286699A CN 201210528669 A CN201210528669 A CN 201210528669A CN 102966242 A CN102966242 A CN 102966242A
- Authority
- CN
- China
- Prior art keywords
- wall
- temperature
- concrete
- spray
- maintenance process
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention provides a wall maintaining method based on automatic temperature measurement and temperature stress reduction, which comprises the following steps: before casting the concrete wall, mounting temperature sensors of a wireless thermodetector at positions with different heights and different thicknesses inside the to-be-cast concrete wall; after casting the concrete, reading the temperature in the concrete through the temperature sensors; based on the read temperature, carrying out the following operations: spraying water to the outer side of the template during the temperature rising process as heat is released due to hydration heat of cement at the early stage of the concrete wall; when the temperature inside the wall is raised to a peak value, stopping spraying, covering thin film on the outer side of the concrete wall to keep temperature of the wall, and delaying the rate of temperature fall of the wall. The structure is simple, and easy to operate. The method can actively protect the wall from temperature crack at the early stage by virtue of spraying the concrete and covering the thin film on the surface to control the temperature inside the concrete, and meanwhile improve the construction quality of the wall.
Description
Technical field
The present invention relates to a kind of body of wall maintenance process based on automatic temperature measurement, purpose is to reduce the early stage heat of hydration thermal stresses of body of wall by the body of wall maintenance process that holds water, and reduces the cracking of body of wall.
Background technology
It is serious to occupy at present on a lot of building sites the concrete exterior wall thermal cracking.In conjunction with shown in Figure 1, cause the reason of concrete exterior wall cracking to be: 1, concrete wall is in early days because the release of hydration heat of cement, can cause temperature to rise and cause volume expansion, after the hydration heat of cement rate of release slows down, because the surface of wall heat radiation can cause drop in temperature to cause the concrete wall volume contraction; 2, the Swelling and contraction of concrete wall will be subject to the constraint on member on every side such as base plate or basis, can not freely occur, thereby produce thermal stresses in concrete wall, when thermal stresses during greater than concrete tensile strength, namely can produce the temperature shrinkage crack.Reduce the measure in temperature shrinkage crack: the one, the highest aquation temperature rise in the reduce concrete wall, the 2nd, the rate of temperature fall of reduction body of wall, the purpose of this two aspect can reach by correct body of wall maintenance process.But the maintenance process for body of wall only is artificial random watering maintenance on the building site at present, this maintenance process can not effectively reduce body of wall because the thermogenetic temperature peak value of aquation, can not effectively delay the cooling rate of body of wall, although therefore carried out maintenance, maintenance early stage thermal cracking occurs to the control body of wall and does not play a positive role.
Summary of the invention
For overcoming the existing defective of prior art, now provide a kind of method of utilizing the wireless automatic temperature measurement instrument to cooperate automatic spray facility and cover film to control heat of hydration thermal history in the concrete wall, thereby reduce the method for Wall Temperature Crack, the method may further comprise the steps:
Before concrete wall is built, the temperature pick up of wireless thermodetector is installed in differing heights and the different-thickness place of concrete wall to be built inside;
Behind the concreting, read temperature in the concrete by described temperature pick up;
Proceed as follows based on temperature in the described concrete that reads:
Early stage because the release of hydration heat of cement in the process that occurrence temperature rises, is carried out the spray of water to the template outside at concrete wall;
When the rising of body of wall internal temperature reaches peak value, stop spray, and at concrete wall outer side covers film body of wall is incubated, delay the rate of temperature fall of body of wall.
The device of described spray comprises a pvc pipe, offers plural spray apertures on the described pvc pipe, and described template is provided with plural Kato, and described pvc pipe is arranged in the described Kato.
Described plural spray apertures is located along the same line, and the water column of described spray apertures ejection becomes miter angle with template.
The present invention makes its beneficial effect that has be owing to adopt above technical scheme:
Body of wall maintenance process of the present invention; simple in structure, easy to operate; by concrete spray and surface coverage film being controlled the temperature of inside concrete; its inner hydration temperature amplitude of variation is reduced; effectively delay the cooling rate of body of wall; early stage thermal cracking is appearred in the control body of wall played positive protective effect, also improved the construction quality of body of wall simultaneously.
Description of drawings
Fig. 1 is the body of wall internal water heat-transmission temperature curve under the art methods;
Fig. 2 is body of wall maintenance process of the present invention schematic diagram in use;
Fig. 3 is body of wall maintenance process of the present invention partial enlarged drawing in use;
Fig. 4 is the enlarged diagram of the spray equipment of body of wall maintenance process of the present invention;
Fig. 5 is the schematic diagram after body of wall maintenance process of the present invention has covered film;
Fig. 6 is the body of wall internal water heat-transmission temperature curve under the body of wall maintenance process of the present invention.
The specific embodiment
For the benefit of to the understanding of structure of the present invention, describe below in conjunction with drawings and Examples.
The present invention proposes a kind of rationally effectively body of wall maintenance process, can effectively reduce body of wall heat of hydration thermal stresses, reduce the cracking of body of wall, the concrete steps of the method are as follows:
In conjunction with Fig. 2, shown in Figure 3, at first debug wireless thermodetector, wireless thermodetector is connected with compunlcation, both are remained within 500 meters distance, the temperature pick up that then will debug good wireless thermodetector before concrete wall 1 is built is installed in differing heights and the different-thickness place of body of wall (reinforcing cage to be built) 1 inside, measure the temperature of inside concrete by temperature pick up, at reinforcing cage to be built outside installation form 2, in template 2 top outer edge both sides a plurality of Katos 21 are installed again, in Kato 21, plug always the footpath for the pvc pipe 3 of 3cm as automatic spraying device, offering plural spacing on the pvc pipe 3 is the spray apertures 31 of 15cm, as shown in Figure 4, spray apertures 31 diameters are 3mm, and it is located along the same line, adjust the angle of spray apertures 31 and template 2, make 2 one-tenth miter angles of water column and template of ejection, adopt the water mode of sending of multiple spot to guarantee that each spray apertures 31 all has the water column ejection.
Then concreting, after concreting is complete, early stage because the release of hydration heat of cement at concrete wall 1, in the process that occurrence temperature rises, template 2 outsides are carried out the spray of water, reduce the aquation temperature rise of body of wall 1 inside, and by wireless thermodetector collection body of wall internal temperature delta data, the temperature acquisition cycle be 3 minutes once, carry out observation and the analysis of data by the special messenger, further combined with shown in Figure 5, rise slowly and approach and stop spray when reaching peak value when observe body of wall 1 internal temperature by computer, and at body of wall 1 outer side covers film 4, body of wall 1 is incubated to delay the rate of temperature fall of body of wall 1, inner hydration temperature amplitude of variation is reduced, as shown in Figure 6, until the temperature value that wireless thermodetector is measured reaches when stablizing, again template 2 is removed, just be made into surface aesthetic, the body of wall 5 that intensity is high.
Body of wall maintenance process of the present invention; simple in structure, easy to operate; by concrete spray and surface coverage film 4 being controlled the temperature of inside concrete; its inner hydration temperature amplitude of variation is reduced; effectively delay the cooling rate of body of wall; early stage thermal cracking is appearred in the control body of wall played positive protective effect, also improved the construction quality of body of wall simultaneously.
Claims (3)
1. body of wall maintenance process based on automatic temperature measurement reduction thermal stresses is characterized in that the method may further comprise the steps:
Before concrete wall is built, the temperature pick up of wireless thermodetector is installed in differing heights and the different-thickness place of concrete wall to be built inside;
Behind the concreting, read temperature in the concrete by described temperature pick up;
Proceed as follows based on temperature in the described concrete that reads:
Early stage because the release of hydration heat of cement in the process that occurrence temperature rises, is carried out the spray of water to the template outside at concrete wall;
When the rising of body of wall internal temperature reaches peak value, stop spray, and at concrete wall outer side covers film body of wall is incubated, delay the rate of temperature fall of body of wall.
2. body of wall maintenance process according to claim 1, it is characterized in that: the device of described spray comprises a pvc pipe, offers plural spray apertures on the described pvc pipe, and described template is provided with plural Kato, and described pvc pipe is arranged in the described Kato.
3. body of wall maintenance process according to claim 3 is characterized in that: described plural spray apertures is located along the same line, and the water column of described spray apertures ejection becomes miter angle with template.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105286699A CN102966242A (en) | 2012-12-10 | 2012-12-10 | Wall maintaining method based on automatic temperature measurement and temperature stress reduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105286699A CN102966242A (en) | 2012-12-10 | 2012-12-10 | Wall maintaining method based on automatic temperature measurement and temperature stress reduction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102966242A true CN102966242A (en) | 2013-03-13 |
Family
ID=47796652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105286699A Pending CN102966242A (en) | 2012-12-10 | 2012-12-10 | Wall maintaining method based on automatic temperature measurement and temperature stress reduction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102966242A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103630084A (en) * | 2013-12-11 | 2014-03-12 | 中国建筑第八工程局有限公司 | Integral constrained deformation measuring method under concrete frame structure seasonal temperature difference action |
| CN103640082A (en) * | 2013-12-30 | 2014-03-19 | 中国建筑第八工程局有限公司 | Concrete bottom plate structure maintenance method and system |
| CN103696571A (en) * | 2013-12-30 | 2014-04-02 | 中国建筑第八工程局有限公司 | Method and system for spraying and maintaining wall structure |
| CN103726655A (en) * | 2013-12-30 | 2014-04-16 | 中国建筑第八工程局有限公司 | Structure maintenance method and system of concrete floor |
| CN103728890A (en) * | 2013-12-19 | 2014-04-16 | 河海大学 | Control method and system for automatic spraying and water pouring maintenance of concrete walls |
| CN104389426A (en) * | 2014-10-15 | 2015-03-04 | 中建四局第六建筑工程有限公司 | Telescopic T-shaped spraying protection tool for maintaining constructional engineering concretes and moisturizing brick walls |
| CN104963511A (en) * | 2015-06-12 | 2015-10-07 | 中国建筑第八工程局有限公司 | Maintaining method for basement exterior wall |
| CN106564122A (en) * | 2016-10-14 | 2017-04-19 | 中交三航局第三工程有限公司 | Pre-tensioning method U beam crack control method |
| 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 |
| CN108005077A (en) * | 2017-12-26 | 2018-05-08 | 中国铁建港航局集团有限公司 | Control the device of culvert mass concrete internal-external temperature difference |
| CN108532975A (en) * | 2018-04-12 | 2018-09-14 | 中国冶集团有限公司 | A kind of early curing device and method of cast-in-place concrete metope |
| CN111456284A (en) * | 2020-04-17 | 2020-07-28 | 上海建工四建集团有限公司 | High-strength fair-faced steel plate concrete shear wall and construction method thereof |
| CN114482548A (en) * | 2021-12-25 | 2022-05-13 | 广东中都建筑集团有限公司 | Concrete spraying maintenance control method and system |
| CN117162244A (en) * | 2023-10-09 | 2023-12-05 | 中国铁路广州局集团有限公司站房建设指挥部 | Ultra-large-volume prefabricated member maintenance device and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001020524A (en) * | 1999-07-07 | 2001-01-23 | Sekisui House Ltd | Concrete curing temperature monitoring device |
| JP2001107563A (en) * | 1999-10-06 | 2001-04-17 | Kubota Kensetsu Kk | Method for curing concrete on site |
| CN101285308A (en) * | 2008-05-09 | 2008-10-15 | 水利部交通部电力工业部南京水利科学研究院 | Device and method for controlling temperature of concrete curing water |
| JP2012092633A (en) * | 2010-10-27 | 2012-05-17 | Sakata Construction Co Ltd | Method of reducing cracks of reinforced concrete structure |
| CN202241559U (en) * | 2011-09-08 | 2012-05-30 | 宿迁华夏建设(集团)工程有限公司 | Automatic concrete spraying and curing system |
| CN102672813A (en) * | 2012-04-24 | 2012-09-19 | 贵州博典建材化工科技有限公司 | Staging maintaining method of rapid hardening foam slurry core filling block in automatic production process |
-
2012
- 2012-12-10 CN CN2012105286699A patent/CN102966242A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001020524A (en) * | 1999-07-07 | 2001-01-23 | Sekisui House Ltd | Concrete curing temperature monitoring device |
| JP2001107563A (en) * | 1999-10-06 | 2001-04-17 | Kubota Kensetsu Kk | Method for curing concrete on site |
| CN101285308A (en) * | 2008-05-09 | 2008-10-15 | 水利部交通部电力工业部南京水利科学研究院 | Device and method for controlling temperature of concrete curing water |
| JP2012092633A (en) * | 2010-10-27 | 2012-05-17 | Sakata Construction Co Ltd | Method of reducing cracks of reinforced concrete structure |
| CN202241559U (en) * | 2011-09-08 | 2012-05-30 | 宿迁华夏建设(集团)工程有限公司 | Automatic concrete spraying and curing system |
| CN102672813A (en) * | 2012-04-24 | 2012-09-19 | 贵州博典建材化工科技有限公司 | Staging maintaining method of rapid hardening foam slurry core filling block in automatic production process |
Non-Patent Citations (1)
| Title |
|---|
| 沈德建 等: "养护方式对混凝土温度场影响试验研究与定量分析", 《建筑技术》, vol. 41, no. 2, 28 February 2010 (2010-02-28) * |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103630084A (en) * | 2013-12-11 | 2014-03-12 | 中国建筑第八工程局有限公司 | Integral constrained deformation measuring method under concrete frame structure seasonal temperature difference action |
| CN103630084B (en) * | 2013-12-11 | 2017-01-11 | 中国建筑第八工程局有限公司 | Integral constrained deformation measuring method under concrete frame structure seasonal temperature difference action |
| CN103728890A (en) * | 2013-12-19 | 2014-04-16 | 河海大学 | Control method and system for automatic spraying and water pouring maintenance of concrete walls |
| CN103728890B (en) * | 2013-12-19 | 2016-01-13 | 河海大学 | A kind of control method of concrete wall surface auto spraying showering curing and system |
| CN103640082B (en) * | 2013-12-30 | 2016-08-24 | 中国建筑第八工程局有限公司 | Concrete bottom plate structure maintenance method and system |
| CN103640082A (en) * | 2013-12-30 | 2014-03-19 | 中国建筑第八工程局有限公司 | Concrete bottom plate structure maintenance method and system |
| CN103696571A (en) * | 2013-12-30 | 2014-04-02 | 中国建筑第八工程局有限公司 | Method and system for spraying and maintaining wall structure |
| CN103726655A (en) * | 2013-12-30 | 2014-04-16 | 中国建筑第八工程局有限公司 | Structure maintenance method and system of concrete floor |
| CN103696571B (en) * | 2013-12-30 | 2015-09-09 | 中国建筑第八工程局有限公司 | The spray maintenance process of wall body structure and system |
| CN103726655B (en) * | 2013-12-30 | 2016-01-20 | 中国建筑第八工程局有限公司 | The structure maintenance method of concrete floor and system |
| CN104389426A (en) * | 2014-10-15 | 2015-03-04 | 中建四局第六建筑工程有限公司 | Telescopic T-shaped spraying protection tool for maintaining constructional engineering concretes and moisturizing brick walls |
| CN104963511A (en) * | 2015-06-12 | 2015-10-07 | 中国建筑第八工程局有限公司 | Maintaining method for basement exterior wall |
| CN106564122A (en) * | 2016-10-14 | 2017-04-19 | 中交三航局第三工程有限公司 | Pre-tensioning method U beam crack control method |
| CN106564122B (en) * | 2016-10-14 | 2018-09-21 | 中交三航局第三工程有限公司 | A kind of pre-tensioning system U beam method for controlling crack |
| 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 |
| CN108005077A (en) * | 2017-12-26 | 2018-05-08 | 中国铁建港航局集团有限公司 | Control the device of culvert mass concrete internal-external temperature difference |
| CN108005077B (en) * | 2017-12-26 | 2024-01-30 | 中国铁建港航局集团有限公司 | Device for controlling internal and external temperature difference of large-volume concrete of water delivery gallery |
| CN108532975A (en) * | 2018-04-12 | 2018-09-14 | 中国冶集团有限公司 | A kind of early curing device and method of cast-in-place concrete metope |
| CN108532975B (en) * | 2018-04-12 | 2021-04-02 | 中国一冶集团有限公司 | Early maintenance device and method for cast-in-place concrete wall surface |
| CN111456284A (en) * | 2020-04-17 | 2020-07-28 | 上海建工四建集团有限公司 | High-strength fair-faced steel plate concrete shear wall and construction method thereof |
| CN114482548A (en) * | 2021-12-25 | 2022-05-13 | 广东中都建筑集团有限公司 | Concrete spraying maintenance control method and system |
| CN117162244A (en) * | 2023-10-09 | 2023-12-05 | 中国铁路广州局集团有限公司站房建设指挥部 | Ultra-large-volume prefabricated member maintenance device and method |
| CN117162244B (en) * | 2023-10-09 | 2024-03-19 | 中国铁路广州局集团有限公司站房建设指挥部 | Ultra-large-volume prefabricated member maintenance device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102966242A (en) | Wall maintaining method based on automatic temperature measurement and temperature stress reduction | |
| CN102323396B (en) | Solid simulation test device for mass concrete and test construction method thereof | |
| CN102729325B (en) | Full-automatic monitoring, early warning, temperature control, moisturizing and curing system and method for prefabricated immersed tube sections | |
| JP5188647B1 (en) | Curing management system for concrete structures | |
| CN103696571B (en) | The spray maintenance process of wall body structure and system | |
| CN203113795U (en) | Wall maintenance device for reducing temperature stress based on automatic temperature measurement | |
| CN202125080U (en) | Heat dissipation device for concrete | |
| CN102720364B (en) | Automatic temperature control process for large-size concrete construction | |
| WO2014191102A3 (en) | Concrete foundation, method for producing a concrete foundation for a wind power tower, and positioning device for positioning jacket pipes in a concrete foundation | |
| CN103978547A (en) | Long-wall structure concrete curing device and curing method thereof | |
| CN204043671U (en) | Flooring laser controlling point Vertical system | |
| CN106033637A (en) | Cable-free independent long-term working landslide hazard landslide hazard monitoring early warning method and system | |
| CN103485370B (en) | A kind of concrete construction control method preventing wallboard harmful cracks | |
| CN112726421B (en) | Construction process of bridge pier bearing platform | |
| CN105043590A (en) | Continuous and automatic observation device for change rule of double thermocline layers of reservoir and installation method thereof | |
| CN209639861U (en) | A kind of mass concrete temperature measuring device | |
| CN103440412A (en) | Method for predicting ground settlement curve of electric power tunnel top pipe downward penetrating construction | |
| CN202119771U (en) | Mass concrete entity simulation test device | |
| CN109443523A (en) | A kind of 35kV is indoor or underground substation structural noise indirect measurement method | |
| CN103628682A (en) | Construction method of crack resistant structure of root of independent steel column for large-area concrete ground | |
| CN213448482U (en) | Nuclear power plant nuclear island bottom plate with grouting sunken type air guide pipe after use | |
| CN204940372U (en) | A kind of wind power generating set concrete foundation temperature monitoring system | |
| CN203843989U (en) | Long wall structure concrete curing device | |
| CN203795570U (en) | Mounting structure for support of drain | |
| CN103898263B (en) | Hot air duct premixer refractory brick come off quick prosthetic appliance and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130313 |