CN205223812U - Highway cement concrete pavement maintenance pad - Google Patents
Highway cement concrete pavement maintenance pad Download PDFInfo
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- CN205223812U CN205223812U CN201521069332.1U CN201521069332U CN205223812U CN 205223812 U CN205223812 U CN 205223812U CN 201521069332 U CN201521069332 U CN 201521069332U CN 205223812 U CN205223812 U CN 205223812U
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- Prior art keywords
- cement concrete
- concrete pavement
- highway cement
- maintenance
- maintenance pad
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Abstract
The utility model discloses a highway cement concrete pavement maintenance pad, including the maintenance advance capital for body and can remove the stereoplasm protection architecture of mode setting on the maintenance advance capital for body, the maintenance advance capital for body is provided with the film bottom, is provided with the felt layer in film bottom top, and the top on felt layer is provided with polymer waterproofing membrane layer, sets up stereoplasm protection architecture in the top on polymer waterproofing membrane layer, and the thickness proportional relation between film bottom, felt layer and the polymer waterproofing membrane layer three is 1: 6: 1, carry out maintenance protection to highway cement concrete pavement, effectual guarantee highway cement concrete pavement moisture can not run off fast to the mode that can absorb the moisture that highway cement concrete pavement evaporates and adopt capillary pipet infiltration technique will be evaporated in absorptive moisture reverse osmosis advances highway cement concrete, guarantee to be kept moist by the highway cement concrete pavement of maintenance, and hygrometry is more than or equal to 90 percent, effectively restraines the microcrack, guarantees the engineering quality.
Description
Technical field
The utility model relates to concrete curing technical field, specifically, is a kind of highway cement concrete pavement maintenance pad.
Background technology
Concrete maintenance comprises natural curing and stream curing.
During concrete curing, answer emphasis to strengthen concrete humidity and temperature and control, reduce the open-assembly time of surface concrete as far as possible, in time concrete exposure is closely covered, prevent surface moisture from evaporating.
Conventional concrete curing method has steaming process, case beam steaming process, natural curing method, healthy liquid method, full water method etc.
Steaming process:
Concrete stream curing can divide quietly to stop, heat up, constant temperature, cooling four-stage, concrete stream curing should meet the following requirements respectively:
(1) quiet stop period environment temperature should be kept to be not less than 5 DEG C, placing terminates 4 ~ 6h and can heat up after concrete final set.
(2) programming rate should not be greater than 10 DEG C/h.
(3) during constant temperature concrete internal temperature no more than 60 DEG C, maximum must not more than 65 DEG C, the thermostatic curing time should require according to component demoulding strength, concrete mix situation and ambient conditions etc. are determined by test.
(4) cooling rate should not be greater than 10 DEG C/h.
Case beam steaming process:
Filling concrete complete employing curing cover enclosed beam body, and input the humidity and temperature around automatic steam control beam body.
Input steam when temperature is lower to heat up, bridge floor and the interior all retaining moisturizings of case after concrete initial set.Programming rate is no more than 10 DEG C/h; Constant temperature is no more than 45 DEG C, concrete core temperature no more than 60 DEG C, maximum individually must not more than 65 DEG C.During cooling, cooling rate is no more than 10 DEG C/h; When the difference being cooled to beam temperature and environment temperature is no more than 15 DEG C, remove curing cover.The interior room cooling of case beam is comparatively slow, suitably can take venting practice.In cover, the temperature at each position is consistent, and the temperature difference is not more than 10 DEG C.
Stream curing timing testing temperature, and perform record.Pressure-type thermometer is arranged in interior case span centre and leans on outside beam-ends 4m place and side form.Within during constant temperature every 2 hours, survey a temperature, within during heating-cooling every 1 hour, survey once, prevent concrete cracks from producing.
After stream curing terminates, carry out immediately spilling fresh water maintenance, the time must not be less than 7 days.Concrete for winter construction cast will take covering curing, when temperature on average is lower than 5 DEG C, will carry out maintenance by winter construction method, the maintenance of case beam surface spraying curing agent.
Natural curing:
Between concrete belt mould curing time, band mould should be taked wrap up, water, spray the measures such as watering and carry out moisturizing, moist maintenance, the unlikely desiccation of guarantee form joint place.In order to ensure smooth form removal, after concreting 24 ~ 48h, slightly can unclamp template, and continue moisturizing after continuing water seasoning to form removal again to specifying the length of time.
After concrete removes surface covering or form removal, reply concrete adopts retaining, waters or cover the measures such as watering and carry out moist maintenance, also can when concrete surface be in dampness, exposure concrete covers or parcel by the materials such as rapid employing burlap, straw screen or mat, then with Polypropylence Sheet or canvas etc. by coated for the material which can retain moisture such as burlap, straw screen or mat.Coated period, coating should stand intact, and laps one another complete, and inner surface should have the condensation globule.Location of having ready conditions should extend the concrete coated moisture-keeping maintaining time as far as possible.
Healthy liquid method:
The maintenance of spray-coated film healthy liquid is applicable to not easily to sprinkle water the abnormal shape of maintenance or large area concrete structure.It is by superchlorinated polyvinyl chloride resin material solution spray gun spraying on concrete surface, forms layer of plastic film, by concrete and air exclusion, stop the evaporation of wherein moisture to ensure normally carrying out of hydration after solution evaporation at concrete surface.Some films are aging voluntarily after maintenance completes to come off, otherwise be unsuitable for be sprayed at after to do on the concrete surface that whitewashes.In summer, sun-proof after film forming, otherwise easily crack.When concrete adopts and sprays curing fluid capable maintenance, not drain spray should be guaranteed.
General employing grey curing agent or limpid material maintenance on the concrete surface of long term exposure.The color of grey curing agent is close to concrete color, and effects on surface also has powdering and additive color effect, and to weathering later stage, its outward appearance is than much better with white curing agent.Limpid curing agent is transparent material, can not whitewash concrete, can only keep original outward appearance.
Full water method:
Adopting thick is that nine fitting strips (wide for 100mm) of more than 12mm are at disturbing concrete plate.
Face edge lap paving with time floating along Bars In Poured Concrete Slab surrounding in process, fix with two every meter long 35mm iron nails; Stair step and Bars In Poured Concrete Slab height lower use plate paving too, and stair step pasting board requires smooth, and the step discrepancy in elevation is less than 3mm; Should by watering the time of smashing and the maintenance of plane sizes piecemeal when concrete slab is larger, boundary uses the wide nine fitting strip pavings of 100mm equally; Lath laying requires smooth, near facing limit; Floating with thick wooden crab in time after casting and compacting of concrete, timely maintenance, especially fog curing should be adopted before summer high-temperature initial set, and thick crab secondary is floating, (namely Zhang San's clamping plate and so on flat board is first spread in plate face by full water method before final set, water passes through plate surface current again to concrete surface, until overflow lath) maintenance 3d ~ 7d, conditions permit curing time should extend; Disturbance concrete is must guard against between curing time; Stair step lath should be cancelled after concrete strength reaches 100% again.
This maintenance method can ensure that concrete obtains maintenance under the condition of constant temperature, constant humidity well, can greatly reduce because of the plastic shrinkage cracks caused by warm and humid change and dehydration, thickness of slab and plate surface evenness can be controlled well, concrete surface intensity can be ensured well, avoid flooring surface layer hollowing phenomenon, Surface Quality of Concrete can be ensured well, reduce the expenses such as decoration stage is levelling, chipping, corner protector.
Utility model content
The purpose of this utility model is to provide a kind of highway cement concrete pavement maintenance pad, maintenance protection can be carried out to highway cement concrete pavement, effectively can ensure that highway cement concrete pavement moisture can not run off fast, and the moisture that highway cement concrete pavement can be evaporated carries out absorbing and adopts the mode of capillary syring infiltration technology to enter in highway cement concrete by the moisture counter-infiltration that evaporation absorbs, ensure to be kept moistening by the highway cement concrete pavement of maintenance, relative humidity is more than or equal to 90%, effective suppression microcrack, ensure workmanship, hard topping disposed thereon can play the effect of load-bearing simultaneously, when somewhere needs staff can be facilitated to repair the road surface that needs are repaired when repairing, also conveniently need the personnel of process from here to pass through simultaneously, and road pavement can not impact or damage.
The utility model is achieved through the following technical solutions: a kind of highway cement concrete pavement maintenance pad; comprise maintenance pad body and removable mode and be arranged on hard operator guards on maintenance pad body; described maintenance pad body is provided with film substrate; felt layers is provided with above described film substrate; macromolecule waterproof film layer is provided with above described felt layers; above described macromolecule waterproof film layer, arrange hard operator guards, it is 1:6:1 that described film substrate, thickness proportion between felt layers and macromolecule waterproof film layer three are closed.
Further for better to realize the utility model; be arranged to following structure especially: in described hard operator guards, be provided with control water felt layers and hard plate sheet material layers; described hard plate sheet material layers is arranged in control water felt layers, and described control water felt layers is arranged on macromolecule waterproof film layer.
Further for better to realize the utility model, be arranged to following structure especially: between described control water felt layers and hard plate sheet material layers, be also provided with flexible glue bed course.
Further for better to realize the utility model, be arranged to following structure especially: described hard plate sheet material layers adopts cold-rolled steel sheet or hot rolled steel plate.
Further for better to realize the utility model, be arranged to following structure especially: it is 10:3:3 that described hard plate sheet material layers, flexible glue bed course and the thickness proportion controlled between water felt layers three are closed.
Further for better to realize the utility model, be arranged to following structure especially: it is 1:1 that described felt layers is closed with the thickness proportion of control water felt layers.
Further for better to realize the utility model, be arranged to following structure especially: described film substrate is the structure of common plastic film surface coating macromolecular material, and the thickness of film substrate is 0.5 ~ 1mm.
The utility model compared with prior art, has the following advantages and beneficial effect:
(1) the utility model can carry out maintenance protection to highway cement concrete pavement, effectively can ensure that highway cement concrete pavement moisture can not run off fast, and the moisture that highway cement concrete pavement can be evaporated carries out absorbing and adopts the mode of capillary syring infiltration technology to enter in highway cement concrete by the moisture counter-infiltration that evaporation absorbs, ensure to be kept moistening by the highway cement concrete pavement of maintenance, relative humidity is more than or equal to 90%, effective suppression microcrack, ensures workmanship; Hard topping disposed thereon can play the effect of load-bearing simultaneously; when somewhere needs staff can be facilitated to repair the road surface that needs are repaired when repairing; also conveniently need the personnel of process from here to pass through simultaneously, and road pavement can not impact or damage.
(2) the utility model utilizes the plastic sheeting being coated with macromolecular material as the conservation layer contacted with by maintaining body, can when avoiding being run off fast by maintaining body moisture, also can absorb by the moisture evaporated in maintaining body, thus formation solid water, this solid water penetrates into by the surface of maintaining body by the mode of then being permeated by capillary syring, moistens by maintaining body surface.
(3) felt layers that the utility model is arranged can play the effect of effectively insulation, makes to be solidified in certain temperature range by maintaining body, thus effective guarantee is by the quality after the solidifying of maintaining body.
Accompanying drawing explanation
Fig. 1 is the utility model structure chart.
Wherein, 1-hard plate sheet material layers, 2-flexible glue bed course, 3-control water felt layers, 4-macromolecule waterproof film layer, 5-felt layers, 6-film substrate, 7-by maintaining body.
Detailed description of the invention
Below in conjunction with embodiment, the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
Embodiment 1:
A kind of highway cement concrete pavement maintenance pad; as shown in Figure 1; comprise maintenance pad body and removable mode and be arranged on hard operator guards on maintenance pad body; described maintenance pad body is provided with film substrate 6; felt layers 5 is provided with above described film substrate 6; macromolecule waterproof film layer 4 is provided with above described felt layers 5; above described macromolecule waterproof film layer 4, arrange hard operator guards, it is 1:6:1 that described film substrate 6, thickness proportion between felt layers 5 and macromolecule waterproof film layer 4 three are closed.
When designing use, described maintenance pad body being laid on by maintaining body 7, film substrate 6 being placed in by the surface of maintaining body 7, according to actual needs hard topping can be set on macromolecule waterproof film layer 4; Described film substrate 6 can be undertaken by the moisture evaporated in maintaining body locking water and utilize the mode of capillary syring penetration theory by by the moisture back feeding of evaporating to surperficial by maintaining body, thus avoid affecting because of rapid evaporation by maintaining body quality; Described felt layers 5 can play the effect of insulation; Described macromolecule waterproof film layer 4 can further prevent by the moisture rapid evaporation in maintaining body; The setting of total, maintenance protection can be carried out to highway cement concrete pavement, effectively can ensure that highway cement concrete pavement moisture can not run off fast, and the moisture that highway cement concrete pavement can be evaporated carries out absorbing and adopts the mode of capillary syring infiltration technology to enter in highway cement concrete by the moisture counter-infiltration that evaporation absorbs, ensure to be kept moistening by the highway cement concrete pavement of maintenance, relative humidity is more than or equal to 90%, effective suppression microcrack, ensures workmanship; Hard topping disposed thereon can play the effect of load-bearing simultaneously; when somewhere needs staff can be facilitated to repair the road surface that needs are repaired when repairing; also conveniently need the personnel of process from here to pass through simultaneously, and road pavement can not impact or damage.
Embodiment 2:
The present embodiment is at the enterprising one-step optimization in the basis of above-described embodiment, further for better to realize the utility model, as shown in Figure 1, be arranged to following structure especially: in described hard operator guards, be provided with control water felt layers 3 and hard plate sheet material layers 1, described hard plate sheet material layers 1 is arranged in control water felt layers 3, and described control water felt layers 3 is arranged on macromolecule waterproof film layer 4; The removable mode of described control water felt layers 3 is arranged on macromolecule waterproof film layer 4, and described hard plate sheet material layers 1 adopts removable mode to be arranged in control water felt layers 3; Described control water felt layers 3 also can control the moisture entered on maintenance pad body while playing insulation, thus plays the object to being controlled by maintaining body maintenance quality; Described hard plate sheet material layers can be facilitated new person to pass through when not destroying when maintaining body, also facilitate staff to carry out being operated by the maintenance of maintaining body.
Embodiment 3:
The present embodiment is at the enterprising one-step optimization in the basis of above-described embodiment, further for better to realize the utility model, is arranged to following structure especially: between described control water felt layers 3 and hard plate sheet material layers 1, be also provided with flexible glue bed course 2; Described flexible glue bed course 2 adopts removable mode to be arranged between control water felt layers 3 and hard plate sheet material layers 1; The setting of described flexible glue bed course 2 can when hard plate sheet material layers moves, can effective guarantee control water felt layers 3 and maintenance pad body can not be damaged.
Embodiment 4:
The present embodiment is the enterprising one-step optimization in basis in embodiment 2 or 3, further for better to realize the utility model, is arranged to following structure especially: described hard plate sheet material layers 1 adopts cold-rolled steel sheet or hot rolled steel plate.
Embodiment 5:
The present embodiment is the enterprising one-step optimization in basis in embodiment 3 or 4, further for better to realize the utility model, be arranged to following structure especially: it is 10:3:3 that described hard plate sheet material layers 1, flexible glue bed course 2 and the thickness proportion controlled between water felt layers 3 three are closed, adopt this thickness proportion relation to arrange, further can ensure intensity and the durability of whole maintenance pad body.
Embodiment 6:
The present embodiment is at the enterprising one-step optimization in the basis of embodiment 2-5 any embodiment, further for better to realize the utility model, is arranged to following structure especially: it is 1:1 that described felt layers 5 is closed with the thickness proportion of control water felt layers 3.
Embodiment 7:
The present embodiment is at the enterprising one-step optimization in the basis of above-mentioned any embodiment, further for better to realize the utility model, be arranged to following structure especially: described film substrate 6 is the structure of common plastic film surface coating macromolecular material, and the thickness of film substrate 6 is 0.5 ~ 1mm.
The above; it is only preferred embodiment of the present utility model; not do any pro forma restriction to the utility model, every any simple modification, equivalent variations done above embodiment according to technical spirit of the present utility model, all falls within protection domain of the present utility model.
Claims (8)
1. a highway cement concrete pavement maintenance pad, it is characterized in that: comprise maintenance pad body and removable mode and be arranged on hard operator guards on maintenance pad body, described maintenance pad body is provided with film substrate (6), described film substrate (6) top is provided with felt layers (5), the top of described felt layers (5) is provided with macromolecule waterproof film layer (4), in the top of described macromolecule waterproof film layer (4), hard operator guards is set, described film substrate (6), it is 1:6:1 that thickness proportion between felt layers (5) and macromolecule waterproof film layer (4) three is closed.
2. a kind of highway cement concrete pavement maintenance pad according to claim 1; it is characterized in that: in described hard operator guards, be provided with control water felt layers (3) and hard plate sheet material layers (1); described hard plate sheet material layers (1) is arranged in control water felt layers (3), and described control water felt layers (3) is arranged on macromolecule waterproof film layer (4).
3. a kind of highway cement concrete pavement maintenance pad according to claim 2, is characterized in that: between described control water felt layers (3) and hard plate sheet material layers (1), be also provided with flexible glue bed course (2).
4. a kind of highway cement concrete pavement maintenance pad according to claim 2, is characterized in that: described hard plate sheet material layers (1) adopts cold-rolled steel sheet or hot rolled steel plate.
5. a kind of highway cement concrete pavement maintenance pad according to claim 3, is characterized in that: it is 10:3:3 that described hard plate sheet material layers (1), thickness proportion between flexible glue bed course (2) and control water felt layers (3) three are closed.
6. a kind of highway cement concrete pavement maintenance pad according to any one of claim 2-5, is characterized in that: it is 1:1 that described felt layers (5) is closed with the thickness proportion of control water felt layers (3).
7. a kind of highway cement concrete pavement maintenance pad according to claim 6, is characterized in that: described film substrate (6) is the structure of common plastic film surface coating macromolecular material, and the thickness of film substrate (6) is 0.5 ~ 1mm.
8. a kind of highway cement concrete pavement maintenance pad according to any one of claim 1-5, is characterized in that: described film substrate (6) is the structure of common plastic film surface coating macromolecular material, and the thickness of film substrate (6) is 0.5 ~ 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521069332.1U CN205223812U (en) | 2015-12-21 | 2015-12-21 | Highway cement concrete pavement maintenance pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521069332.1U CN205223812U (en) | 2015-12-21 | 2015-12-21 | Highway cement concrete pavement maintenance pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205223812U true CN205223812U (en) | 2016-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521069332.1U Expired - Fee Related CN205223812U (en) | 2015-12-21 | 2015-12-21 | Highway cement concrete pavement maintenance pad |
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| Country | Link |
|---|---|
| CN (1) | CN205223812U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106245504A (en) * | 2016-08-22 | 2016-12-21 | 南丹县交通运输局 | Cement concrete pavement maintenance pad |
| CN109577186A (en) * | 2018-12-17 | 2019-04-05 | 山东汇通建设集团有限公司 | Overpass anti-collision wall crack resistence structure and construction |
| CN109798127A (en) * | 2018-11-26 | 2019-05-24 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | A kind of tunnel lining concrete exempts from support from releasing water heat and moisture preserving integration curing means and implementation method |
-
2015
- 2015-12-21 CN CN201521069332.1U patent/CN205223812U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106245504A (en) * | 2016-08-22 | 2016-12-21 | 南丹县交通运输局 | Cement concrete pavement maintenance pad |
| CN109798127A (en) * | 2018-11-26 | 2019-05-24 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | A kind of tunnel lining concrete exempts from support from releasing water heat and moisture preserving integration curing means and implementation method |
| CN109577186A (en) * | 2018-12-17 | 2019-04-05 | 山东汇通建设集团有限公司 | Overpass anti-collision wall crack resistence structure and construction |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160511 Termination date: 20181221 |
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| CF01 | Termination of patent right due to non-payment of annual fee |