CN207553102U - A kind of prevention and cure of crack structure of mass concrete continuous cooling - Google Patents
A kind of prevention and cure of crack structure of mass concrete continuous cooling Download PDFInfo
- Publication number
- CN207553102U CN207553102U CN201721328280.4U CN201721328280U CN207553102U CN 207553102 U CN207553102 U CN 207553102U CN 201721328280 U CN201721328280 U CN 201721328280U CN 207553102 U CN207553102 U CN 207553102U
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- China
- Prior art keywords
- mass concrete
- water filling
- concrete
- mass
- coil pipe
- 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.)
- Expired - Fee Related
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- 239000004567 concrete Substances 0.000 title claims abstract description 89
- 238000001816 cooling Methods 0.000 title claims abstract description 19
- 230000002265 prevention Effects 0.000 title claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000004033 plastic Substances 0.000 claims abstract description 21
- 229920003023 plastic Polymers 0.000 claims abstract description 21
- 238000005452 bending Methods 0.000 claims abstract description 15
- 238000010276 construction Methods 0.000 claims abstract description 14
- 238000004826 seaming Methods 0.000 claims abstract description 11
- 239000007924 injection Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000002985 plastic film Substances 0.000 claims description 3
- 229920006255 plastic film Polymers 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 239000002689 soil Substances 0.000 claims 1
- 230000017525 heat dissipation Effects 0.000 abstract description 3
- 239000004927 clay Substances 0.000 description 6
- 230000036571 hydration Effects 0.000 description 6
- 238000006703 hydration reaction Methods 0.000 description 6
- 239000004568 cement Substances 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000004576 sand Substances 0.000 description 5
- 238000005266 casting Methods 0.000 description 4
- 239000004575 stone Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 239000006196 drop Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000012791 sliding layer Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The utility model discloses a kind of prevention and cure of crack structure of mass concrete continuous cooling, which includes plastics bending coil pipe, wooden frame and water filling bag；Mass concrete is layered, block placement when, mass concrete surface area and mass concrete seaming zone are divided into crack, and mass concrete seaming zone is arranged between two blocks of adjacent mass concretes；Plastics bending coil pipe is arranged on two pieces of mass concrete junctions, and plastics bending coil pipe can completely cover mass concrete seaming zone；Meanwhile the laying area that can plastics be bent with coil pipe according to the surface size of mass concrete is designed, heat dissipation adjustment is flexible.Water filling bag in wooden frame can effectively disperse the heat of mass concrete surface, during mass concrete placement layer by layer, can suitably be arranged to be adjusted the heat of every layer of generation at any time according to construction in due course, avoid generating crack.
Description
Technical field
The utility model is related to a kind of prevention and cure of crack structures of mass concrete continuous cooling, belong to mass concrete
Technical field of construction.
Background technology
How to reduce the hydration heat of cement of mass concrete is an important construction technology.Hydrated cementitious heat is main
From hydration heat of cement, thus select the portland slag cement concrete batching of low hydration heat preferable；By designing concrete
Match ratio, and using " double-doped " technology of adding coal ash and water-reducing agent, the cement consumption in reducing per cubic meter of concrete, with
Achieve the purpose that reduce the heat of hydration；Suitable aggregate is selected, selects according to field condition that grain size is larger, and grading is good in construction as possible
Good coarse aggregate；Medium coarse sand is selected, improves the workability of concrete, and make full use of the later strength of concrete, reduction water
Amount；The slump of stringent control concrete.The measurement that special messenger carries out slump is set at the scene, and the slump of concrete is controlled always
System is best generally using 7~9cm in scope of design；During hot weather construction, in the pre-buried cooling water pipe of inside concrete, lead to cycle
Cooling water is forced to reduce hydration heat of concrete temperature.During winter construction, conserved using Insulation；As technical conditions permit
Perhaps, 10%~15% ratchel can be added in concrete structure, reduces the dosage of concrete, cement and drop are saved to reach
The purpose of low hydration heat.
It is that convenient temperature should be selected when pouring mass concrete to reduce concrete molding temperature, avoids sweltering heat as possible
Weather pours.Summer can be used temperature and lower ground descend water ready-mixed concrete or add in ice cube in concrete mixing water, simultaneously
Sunshade, watering cooling are carried out to aggregate, also using measures such as sunshade protection, watering coolings in transport and casting process, with drop
The molding temperature of low concrete mix；Add corresponding retarding water reducer；When concrete enters mould, pressure can also be taken
Venting practice accelerates heat in mould to distribute.
Strengthen the control of the temperature in construction to refer to after concreting, carry out the heat and moisture preserving maintenance of concrete,
So that concrete slowly cools down, its Creep Characteristics is given full play to, lowers temperature stress.Summer should firmly avoid exposure, pay attention to protecting
It is wet；Winter should take measures to keep the temperature covering, to avoid temperature gradient variation drastically；Prolonged maintenance is taken, determines to close
The striking time of reason to delay cooling rate, extends temperature fall time, gives full play to " the stress relaxation effect " of concrete；And add
Strong thermometric and temperature monitoring.Thermosensitive thermometer monitoring or special messenger's multiple spot monitoring can be used, grasped at any time with controlling in concrete
Temperature change.Temperature difference between inside and outside concrete should be controlled within 25 DEG C, the basal plane temperature difference and the basal surface temperature difference control 20 DEG C with
It is interior, and adjustment heat preservation in time and maintenance measure, the temperature gradient and humidity for making concrete will not be excessive, split so that effective control is harmful
The appearance of seam；Reasonable arrangement operational procedure, concrete should uniformly rise in casting process, and concrete is avoided to accumulate height difference mistake
Greatly.The timely backfill after the completion of structure, avoids its side from exposing for a long time.
Another place needed to pay attention to is to improve constraints, cuts down temperature stress.In volume of concrete foundation
Sliding layer can be set between bed course, and if technical conditions are permitted, construction is appropriate to the occasion to use brush heated bitumen as sliding layer, embedding to eliminate
Gu effect discharges restraint stress.
The tensile strength for improving concrete includes controlling clay content of gathering materials.Sand, stone clay content are excessive, not only increase concrete
Contraction, and reduce concrete tensile strength, it is very unfavorable to the cracking resistance of concrete.Therefore it is necessary in concrete mixing
The clay content of stringent control sand, stone controls stone clay content 1% hereinafter, middle sand clay content is controlled 2% hereinafter, reducing
Because of sand, the excessive adverse effect to concrete anticracking of stone clay content；Improve concrete construction process.Can be used secondary batching method,
Secondary vibration method, timely the methods of excluding surface area water and top layer's mud after pouring；Strengthen early curing, it is early to improve concrete
Phase and the tensile strength and elasticity modulus of corresponding age；Match on volume of concrete foundation surface and the internal necessary temperature of setting
Muscle to improve stress distribution, prevents the appearance in crack.
Utility model content
The purpose of this utility model is that devising a kind of prevention and cure of crack structure of mass concrete continuous cooling, pass through
The structure, which is realized, effectively radiates to the surface of mass concrete and connection contact position, and the logical structure fabrication is simple, operation
It is convenient, it effectively prevent the crack occurred inside mass concrete and at each block placement.
To achieve the above object, the technical solution adopted in the utility model splitting for a kind of mass concrete continuous cooling
Control structure is stitched, which includes plastics bending coil pipe 1, wooden frame 2 and water filling bag 3；Mass concrete is layered, piecemeal
When pouring, mass concrete surface area and mass concrete seaming zone are divided into crack, and mass concrete seaming zone is set
It puts between two blocks of adjacent mass concretes；Wooden frame 2 is laid in mass concrete surface area, plastics bending coil pipe
1 is laid on mass concrete seaming zone；It is divided into several cooling areas among wooden frame 2, the cooling area of each wooden frame 2
In filled with water filling bag 3, wooden frame 2 is the support construction of water filling bag 3.Plastics are bent coil pipe 1 and water filling bag 3 and connect with water filling source
It connects.
Plastics bending coil pipe 1 is made of plastic film.
The centre of each water filling bag 3 is equipped with water injection hole 4, and the avris of each water filling bag 3 is equipped with apopore.
Compared with prior art, the utility model has the advantages that.
Plastics bending coil pipe is arranged on two pieces of mass concrete junctions, and plastics bending coil pipe can completely cover substantially
Product concrete joint area；Meanwhile according to the surface size of mass concrete plastics can be bent the laying area of coil pipe into
Row design, heat dissipation adjustment are flexible.
Water filling bag in wooden frame can effectively disperse the heat of mass concrete surface, in mass concrete point
In layer casting process, it can suitably be arranged to be adjusted the heat of every layer of generation at any time according to construction in due course, avoid generating crack.
Description of the drawings
Fig. 1 is the structure chart of the utility model.
Specific embodiment
As shown in Figure 1, a kind of prevention and cure of crack structure of mass concrete continuous cooling, which includes plastics and is bent disk
Pipe 1, wooden frame 2 and water filling bag 3；Mass concrete is layered, block placement when, mass concrete table is divided into crack
Face area and mass concrete seaming zone, mass concrete seaming zone are arranged between two blocks of adjacent mass concretes；
Wooden frame 2 is laid in mass concrete surface area, and plastics bending coil pipe 1 is laid on mass concrete seaming zone；Wood
It is divided into several cooling areas among matter frame 2, filled with water filling bag 3 in the cooling area of each wooden frame 2, wooden frame 2 is water filling
The support construction of bag 3.Plastics are bent coil pipe 1 and water filling bag 3 is connect with water filling source.
Plastics bending coil pipe 1 is made of plastic film.
The centre of each water filling bag 3 is equipped with water injection hole 4, and the avris of each water filling bag 3 is equipped with apopore.
Plastics bending coil pipe is arranged on two pieces of mass concrete junctions, and plastics bending coil pipe can completely cover substantially
Product concrete joint area；Meanwhile according to the surface size of mass concrete plastics can be bent the laying area of coil pipe into
Row design, heat dissipation adjustment are flexible.
Water filling bag in wooden frame can effectively disperse the heat of mass concrete surface, in mass concrete point
In layer casting process, it can suitably be arranged to be adjusted the heat of every layer of generation at any time according to construction in due course, avoid generating crack.
Claims (3)
1. a kind of prevention and cure of crack structure of mass concrete continuous cooling, it is characterised in that：The structure includes plastics and is bent disk
Manage (1), wooden frame (2) and water filling bag (3)；Mass concrete is layered, block placement when, crack is divided into large volume and is mixed
Solidifying soil surface district and mass concrete seaming zone, mass concrete seaming zone are arranged on two blocks of adjacent mass concretes
Between；Wooden frame (2) is laid in mass concrete surface area, and plastics bending coil pipe (1) is laid on mass concrete and connects
It stitches in area；It is divided into several cooling areas among wooden frame (2), water filling bag is filled in the cooling area of each wooden frame (2)
(3), wooden frame (2) is the support construction of water filling bag (3)；Plastics bending coil pipe (1) and water filling bag (3) are connect with water filling source.
2. a kind of prevention and cure of crack structure of mass concrete continuous cooling according to claim 1, it is characterised in that：Modeling
Material bending coil pipe (1) is made of plastic film.
3. a kind of prevention and cure of crack structure of mass concrete continuous cooling according to claim 1, it is characterised in that：Often
The centre of a water filling bag (3) is equipped with water injection hole (4), and the avris of each water filling bag (3) is equipped with apopore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721328280.4U CN207553102U (en) | 2017-10-16 | 2017-10-16 | A kind of prevention and cure of crack structure of mass concrete continuous cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721328280.4U CN207553102U (en) | 2017-10-16 | 2017-10-16 | A kind of prevention and cure of crack structure of mass concrete continuous cooling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207553102U true CN207553102U (en) | 2018-06-29 |
Family
ID=62674151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721328280.4U Expired - Fee Related CN207553102U (en) | 2017-10-16 | 2017-10-16 | A kind of prevention and cure of crack structure of mass concrete continuous cooling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207553102U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113846857A (en) * | 2021-10-25 | 2021-12-28 | 孙海宏 | Crack prevention and control structure for continuous cooling of mass concrete |
-
2017
- 2017-10-16 CN CN201721328280.4U patent/CN207553102U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113846857A (en) * | 2021-10-25 | 2021-12-28 | 孙海宏 | Crack prevention and control structure for continuous cooling of mass concrete |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100024 Beijing, Guanzhuang, Chaoyang District, Zhou Patentee after: CCCC FIRST HIGHWAY ENGINEERING GROUP Co.,Ltd. Address before: 100024 Beijing, Guanzhuang, Chaoyang District, Zhou Patentee before: CCCC FIRST HIGHWAY ENGINEERING Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180629 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |