CN112060710A - Phase-change temperature control template for mass concrete - Google Patents
Phase-change temperature control template for mass concrete Download PDFInfo
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- CN112060710A CN112060710A CN202010895408.5A CN202010895408A CN112060710A CN 112060710 A CN112060710 A CN 112060710A CN 202010895408 A CN202010895408 A CN 202010895408A CN 112060710 A CN112060710 A CN 112060710A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/092—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising epoxy resins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/18—Layered products comprising a layer of metal comprising iron or steel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/38—Layered products comprising a layer of synthetic resin comprising epoxy resins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B9/041—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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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
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Ceramic Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention discloses a phase-change temperature control template for mass concrete, which comprises a phase-change box body unit, wherein the phase-change box body unit comprises a box body, a box cover is arranged on the box body, phase-change materials are filled in the box body, the phase-change box body unit is arranged between rib parts of a steel template, and the surface of the phase-change box body unit is packaged by a steel plate. The phase-change temperature control template for the large-volume concrete provided by the invention can effectively reduce the surface temperature change of the newly poured large-volume concrete, is simple in design and provides a design idea for the design of an intelligent concrete template.
Description
Technical Field
The invention belongs to the field of materials, and particularly relates to a phase-change temperature control template for mass concrete.
Background
With the continuous development of economy and the acceleration of urbanization process, the number and the scale of large-volume concrete projects are also increased sharply. The large-volume concrete has the characteristics of large volume and complex structural form, and in the initial construction stage, the temperature in the large-volume concrete is increased due to the fact that more heat is generated by hydration of cement in the large-volume concrete. If the large-volume concrete is attacked by cold tide, the surface temperature of the large-volume concrete is suddenly reduced, so that the temperature difference between the internal temperature and the surface temperature of the large-volume concrete is sharply increased, huge tensile stress is generated, and concrete cracks are easily generated. In addition, in high-temperature severe weather in summer, the surface temperature of the mass concrete is rapidly increased under the influence of solar radiation in the noon, so that large temperature difference is generated inside and outside the mass concrete, and temperature cracks are easily generated. In recent years, extreme weather conditions are very common, the occurrence frequency is gradually increased, and in high-altitude areas, due to the fact that the annual variation and the daily variation of air temperature are large, the climate is severe, and therefore large-volume concrete cannot bear the huge temperature gradient change to cause the generation of temperature cracks if heat preservation measures are not taken. Therefore, if effective heat preservation measures can be taken, the temperature gradient on the surface of the mass concrete can be reduced, so that the anti-cracking and anti-cracking capability of the mass concrete is improved, and the safe operation of the mass concrete structure is further ensured.
The phase change material is an efficient energy storage material which can change the form and structure of a substance along with the change of temperature, simultaneously absorbs or releases larger energy and keeps the temperature unchanged in the phase change process. The phase change material is applied to the large-volume concrete template, and the isothermal or approximately isothermal characteristic of the phase change material in the phase change process can be utilized, so that the temperature change of the large-volume concrete can be effectively controlled in a small range, the temperature gradient between the surface and the interior of the large-volume concrete is reduced, and the crack resistance of the large-volume concrete is improved. However, most of the existing phase-change materials are fatty acid phase-change materials which undergo solid-liquid phase change, and the phase-change materials have a solid-liquid phase-change process in the phase-change process, so that the leakage problem is easy to occur during application, and the wide application of the phase-change materials is limited to a certain extent.
In summary, based on the above reasons, in order to solve the problems of excessive surface temperature change of mass concrete and application of phase change materials, it is now needed to design a novel mass concrete phase change temperature control template to reduce the surface temperature change of mass concrete and improve the leakage problem of phase change materials in the phase change process, so that the phase change materials are applied to the mass concrete template, and the crack resistance of mass concrete is improved.
Disclosure of Invention
The invention aims to provide a phase-change temperature control template for mass concrete, which can effectively reduce the surface temperature change of newly poured mass concrete, is simple in design and provides a design thought for the design of an intelligent concrete template.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the utility model provides a be used for bulky concrete phase transition accuse temperature template, includes phase transition box body unit, phase transition box body unit includes the box body, set up the lid on the box body, the inside phase change material that is filled with of box body, phase transition box body unit sets up between the rib portion of steel form, and the surface adopts the steel sheet encapsulation.
Furthermore, the box cover is used for the large-volume concrete phase-change temperature control template, and the box cover and the box body are sealed through the sealing layer.
Furthermore, the phase-change temperature control template for the large-volume concrete is provided with a vent hole on the box cover.
Furthermore, the phase change material filling amount in the box body is 90% of the volume of the box body.
Further, the phase-change temperature control template for the mass concrete is characterized in that the phase-change material is a diatomite-based composite phase-change material, and further, the diatomite is of a porous structure and is made of fatty acid.
Furthermore, the box body and the box cover are made of aluminum for the large-volume concrete phase-change temperature control template.
Further, be used for bulky concrete phase transition accuse temperature template, the phase transition box body unit sets up between the rib portion of steel form, wherein the space between phase transition box body unit and the steel form adopts the cystosepiment to fill. Still further, the foam board is a polyurethane foam board.
Furthermore, the phase-change temperature control template for the large-volume concrete is characterized in that the contact part of the steel template and the steel plate is fastened and connected through a fastener to realize the packaging of the phase-change box body unit.
Furthermore, the sealing layer is an epoxy resin sealing layer.
Furthermore, the phase-change temperature control formwork for the large-volume concrete is characterized in that a connecting hole is formed in the contact part of the steel formwork and the steel formwork, and the connecting hole is fixed by penetrating a right-angle screw.
The invention has the following beneficial effects:
the phase-change temperature control template can utilize the diatomite-based composite phase-change material inside to carry out phase-change heat storage or heat release, and reduce the temperature change of the surface of the newly poured mass concrete when the external environment changes rapidly, thereby reducing the internal and external temperature difference of the mass concrete and preventing the generation of temperature cracks of the mass concrete. Phase change material in the phase transition accuse temperature template adopts diatomaceous earth base composite phase change material, the porous structure of diatomaceous earth has been utilized, can adsorb phase change material in a large number, phase change material then adopts fatty acid, the fatty acid kind is more, different phase transition temperature has, and higher phase transition latent heat has, consequently, make diatomaceous earth base composite phase change material with diatomaceous earth adsorption fatty acid, not only can prevent that phase change material from revealing in the emergence of phase transition in-process, and have higher phase transition latent heat, suitable phase transition temperature, can provide effectual protection to the bulky concrete of new pouring. The top of the phase-change box body is buckled by an aluminum box cover, and the contact part of the aluminum box cover and the phase-change box body is sealed by epoxy resin, so that the diatomite-based composite phase-change material is tightly sealed. The aluminum box cover is provided with a vent hole which can be a small hole with the diameter of 1mm, so that the phenomenon that the phase change temperature control template is broken at a weak part due to the fact that the internal air is heated, expanded in volume or compressed by cold in the phase change heat storage or heat release process of the phase change material can be prevented; the phase change box body is made of aluminum materials, the aluminum materials have high heat conductivity coefficients, heat storage or heat release efficiency is effectively improved, and meanwhile, the phase change box body is wide in source and low in price. The polyurethane foam board filled in the gap between the phase change box body and the rib part of the common steel template has lower heat conductivity coefficient, can effectively play a role in heat preservation, and reduces the surface temperature change of mass concrete. The phase-change temperature control template adopts a steel plate to shield a phase-change box body nested between rib parts of a common steel template, small holes are formed around the corresponding positions of the contact parts of the steel plate and the common steel template, right-angle screws penetrate through the holes to be fixed, the right-angle screws are fixed firmly, and the plate is convenient to assemble and disassemble and convenient to recycle.
Drawings
FIG. 1 is a top view of a phase change temperature controlled form for bulk concrete as provided in example 1;
FIG. 2 is a schematic view of a phase change cartridge in example 1;
in the above fig. 1 and 2, 1 is a steel form, 2 is a phase change box unit, 21 is a box, 22 is a box cover, 23 is a phase change material, 24 is a sealing layer, 25 is an air vent, 26 is a foam plate, 3 is a steel plate, and 4 is a fastening piece.
The specific implementation mode is as follows:
example 1
The present invention will be described in further detail with reference to examples.
The utility model provides a be used for bulky concrete phase transition accuse temperature template, as shown in fig. 1 and fig. 2, including steel form 1, phase transition box body unit 2 and steel sheet 3, phase transition box body unit 2 includes box body 21, set up lid 22 on the box body 21, the inside phase change material 23 that is filled of box body 21, phase transition box body unit 2 sets up between the rib portion of steel form 1, and the surface adopts the encapsulation of steel sheet 3, realize sealedly through sealing layer 24 between lid 22 and the box body 21, be provided with air vent 25 on the lid 22, the space between phase transition box body unit 2 and the steel form 1 adopts the cystosepiment 26 to fill, steel sheet 3 with the contact site of steel form 1 realizes will through 4 fastening connection of fastener phase transition box body unit 2 encapsulates.
The phase change material 23 can be a diatomite-based composite phase change material, the porous structure of diatomite can adsorb a large amount of phase change materials, and the phase change materials are fatty acids, have different phase change temperatures and have higher phase change latent heat, so that severe temperature change on the surface of mass concrete can be prevented. Meanwhile, the diatomite-based phase change material has good stability, and can keep the characteristics of high latent heat and stable phase change temperature of the phase change material for a long time.
The box body 21 and the box cover 22 can be made of aluminum, have high heat conductivity coefficient, can effectively improve the heat storage or heat release efficiency of the phase-change material, and have wide sources and low price.
In order to prevent the phase change material from overflowing box 21 due to volume expansion, the volume of the phase change material filled in box 21 accounts for about 90% of the volume of box 21.
The sealing layer 24 is an epoxy resin sealing layer, the epoxy resin has strong bonding property and high bonding speed, bonding between various metals and non-metals can be performed, the device can be effectively sealed, material leakage is prevented, and the corrosion resistance is high.
Phase change box body unit 2 sets up between the rib portion of steel form 1, and wherein the space between phase change box body unit 2 and the steel form 1 adopts cystosepiment 26 to fill, and the cystosepiment material can adopt polyurethane foam, and the coefficient of heat conductivity is low, can effectively prevent phase change heat storage device's calorific loss, and the material source is extensive, the low price.
The box cover 22 is provided with a vent hole 25, the diameter of the vent hole 25 can be 1mm, and the vent hole is communicated with the outside, so that the volume change of the diatomite-based composite phase change material in the phase change heat storage or heat release process is prevented, the pressure intensity inside the box body 21 is changed, and the phase change heat storage device is prevented from expanding and cracking at the weak bonding part.
The steel sheet 3 with the contact site of steel form 1 passes through fastener 4 fastening connection and realizes will phase change box body unit 2 encapsulation can take specific fastening mode in specific work progress, if the steel sheet 3 with the contact site of steel form 1 sets up the connecting hole, and the connecting hole is fixed through penetrating the right angle type screw.
The embodiment provides a phase-change temperature control template for large-volume concrete, and the diatomite-based composite phase-change material and the polyurethane foam board filled in the template can effectively reduce the temperature change of the surface of the newly poured large-volume concrete, reduce the internal and external temperature difference of the large-volume concrete and prevent the temperature cracks of the large-volume concrete; the diatomite-based composite phase change material adopts diatomite as a carrier of the phase change material, so that leakage of the phase change material in the phase change process can be prevented. In addition, the phase-change temperature control template is simple in structural design, convenient to assemble and disassemble, capable of being repeatedly used for many times, low in cost and very suitable for popularization.
Claims (10)
1. The utility model provides a be used for bulky concrete phase transition accuse temperature template, a serial communication port, including phase transition box body unit (2), phase transition box body unit (2) are including box body (21), set up lid (22) on box body (21), box body (21) inside is filled with phase change material (23), phase transition box body unit (2) set up between the rib portion of steel form (1), and steel sheet (3) encapsulation is adopted on the surface.
2. The phase-change temperature-control formwork for mass concrete according to claim 1, wherein the sealing between the box cover (22) and the box body (21) is realized by a sealing layer (24).
3. The phase-change temperature-control formwork for mass concrete according to claim 1, wherein the box cover (22) is provided with a vent hole (25).
4. The phase-change temperature-control formwork for mass concrete according to claim 1, wherein the filling amount of the phase-change material (23) in the box body (21) is 90% of the volume of the box body (21).
5. The phase-change temperature-control template for mass concrete according to claim 1, wherein the phase-change material (23) is a diatomite-based composite phase-change material.
6. The phase-change temperature-control formwork for mass concrete according to claim 1, wherein the box body (21) and the box cover (22) are made of aluminum.
7. The phase-change temperature-control formwork for mass concrete according to claim 1, characterized in that the phase-change box body unit (2) is arranged between the ribs of the steel formwork (1), wherein the gap between the phase-change box body unit (2) and the steel formwork (1) is filled with a foam plate (26).
8. The phase-change temperature-control formwork for mass concrete according to claim 1, wherein the contact part of the steel plate (3) and the steel formwork (1) is tightly connected through a fastener (4) to realize the encapsulation of the phase-change box body unit (2).
9. The phase-change temperature-control formwork for mass concrete according to claim 2, characterized in that the sealing layer (24) is an epoxy resin sealing layer.
10. The phase-change temperature-control formwork for mass concrete according to claim 8, wherein a connecting hole is formed in the contact part of the steel formwork (1) and the steel plate (3), and the connecting hole is fixed by penetrating a right-angle screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010895408.5A CN112060710A (en) | 2020-08-31 | 2020-08-31 | Phase-change temperature control template for mass concrete |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010895408.5A CN112060710A (en) | 2020-08-31 | 2020-08-31 | Phase-change temperature control template for mass concrete |
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| CN112060710A true CN112060710A (en) | 2020-12-11 |
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| CN202010895408.5A Pending CN112060710A (en) | 2020-08-31 | 2020-08-31 | Phase-change temperature control template for mass concrete |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102432258A (en) * | 2011-08-31 | 2012-05-02 | 南京工业大学 | Shaped phase change energy storage material for building and preparation method thereof |
| DE202017003354U1 (en) * | 2017-06-27 | 2017-07-11 | Franz-Josef Struffert | Heat and cold storage (wall) components |
| CN110006281A (en) * | 2019-04-18 | 2019-07-12 | 河海大学 | A kind of phase transition heat accumulation unit improving phase-change material heat storage efficiency |
| CN210887275U (en) * | 2019-09-09 | 2020-06-30 | 蓝海建设集团有限公司 | Concrete pile bearing platform template structure |
| CN211081034U (en) * | 2019-07-24 | 2020-07-24 | 韩磊 | Building template easy to disassemble |
| CN211104661U (en) * | 2019-09-12 | 2020-07-28 | 吉林省新生建筑工程公司 | Assembled building module defect self-checking type concrete fast curing template |
-
2020
- 2020-08-31 CN CN202010895408.5A patent/CN112060710A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102432258A (en) * | 2011-08-31 | 2012-05-02 | 南京工业大学 | Shaped phase change energy storage material for building and preparation method thereof |
| DE202017003354U1 (en) * | 2017-06-27 | 2017-07-11 | Franz-Josef Struffert | Heat and cold storage (wall) components |
| CN110006281A (en) * | 2019-04-18 | 2019-07-12 | 河海大学 | A kind of phase transition heat accumulation unit improving phase-change material heat storage efficiency |
| CN211081034U (en) * | 2019-07-24 | 2020-07-24 | 韩磊 | Building template easy to disassemble |
| CN210887275U (en) * | 2019-09-09 | 2020-06-30 | 蓝海建设集团有限公司 | Concrete pile bearing platform template structure |
| CN211104661U (en) * | 2019-09-12 | 2020-07-28 | 吉林省新生建筑工程公司 | Assembled building module defect self-checking type concrete fast curing template |
Non-Patent Citations (3)
| Title |
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| 张春姝主编: "《土木工程施工技术》", 30 September 2017, 北京：航空工业出版社 * |
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Application publication date: 20201211 |
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