CN110499893A - A kind of cast-in-place concrete building terrace one-pass molding construction method - Google Patents
A kind of cast-in-place concrete building terrace one-pass molding construction method Download PDFInfo
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- CN110499893A CN110499893A CN201810478285.8A CN201810478285A CN110499893A CN 110499893 A CN110499893 A CN 110499893A CN 201810478285 A CN201810478285 A CN 201810478285A CN 110499893 A CN110499893 A CN 110499893A
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- 238000010276 construction Methods 0.000 title claims abstract description 41
- 238000000465 moulding Methods 0.000 title claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000009408 flooring Methods 0.000 claims abstract description 7
- 235000013312 flour Nutrition 0.000 claims abstract description 4
- 238000003801 milling Methods 0.000 claims abstract description 4
- 238000007667 floating Methods 0.000 claims description 14
- 230000018044 dehydration Effects 0.000 claims description 12
- 238000006297 dehydration reaction Methods 0.000 claims description 12
- 239000002344 surface layer Substances 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 230000002745 absorbent Effects 0.000 claims description 6
- 239000002250 absorbent Substances 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 6
- 239000002689 soil Substances 0.000 claims description 5
- 239000004568 cement Substances 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- 238000005056 compaction Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 3
- 229910052753 mercury Inorganic materials 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 238000005336 cracking Methods 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 4
- 238000010410 dusting Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 239000007787 solid Substances 0.000 description 2
- 239000011083 cement mortar Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses a kind of cast-in-place concrete building terrace one-pass molding construction methods, it is desirable to provide one kind has simple process, short construction period, high-quality, the construction method of the low advantage of construction cost, its key points of the technical solution are that including the following steps, S1, concreting, S2, angle steel are removed, S3, concrete vacuum water suction, S4, mechanical flour milling, press polish, S5, flatness review.In floorslab concrete after the completion of pouring, concrete slab surface can reach the requirement that codes and standards use, and the indices such as flatness, the finish on concrete formation surface are attained by monolithic floor surface code requirement；One-shot forming technique is simple, can thoroughly solve traditional flooring construction technology process complexity, long construction period, there are screed-coat hollowing cracking, dusting, the more low mass defects of surface strength, and can be reduced the secondary construction cost of terrace.
Description
Technical field
The present invention relates to technical field of concrete, in particular to a kind of cast-in-place concrete building terrace one-pass molding construction party
Method.
Background technique
Currently, the Chinese patent of Publication No. CN101456709A discloses a kind of cast-in-place concrete floor, it includes: it
In the cast-in-place concrete floor component and part ratio are as follows: slag cements: 380-410 parts；90 parts of flyash 72-；Outside
Add 8-10 parts of agent；760-880 parts of sand；930-1050 parts of stone；215-305 parts of water.A kind of contraction distortion of the present invention is small, cracking resistance
Performance is strong.The short cast-in-place concrete floor of curing time.
Cast-in-place concrete building terrace one-shot forming technique is not more difficult, and common practices is done again after concrete building sheet metal forming
It is levelling that the cement mortar of 20mm thickness carries out surface layer.And so-called building terrace one-pass molding refers to: pouring completion in floorslab concrete
Afterwards, concrete slab surface can reach the requirement that codes and standards use, and the items such as flatness, the finish on concrete formation surface refer to
Mark is attained by monolithic floor surface code requirement.Compared with secondary mortar monolithic floor surface, cast-in-place concrete floor terrace one-pass molding
Simple process, it is complicated thoroughly to solve traditional flooring construction technology process, long construction period, there are screed-coat hollowing cracking,
Dusting, the more low mass defect of surface strength, and can be reduced the secondary construction cost of terrace, it is a kind of construction work being worthy to be popularized
Skill.
Summary of the invention
The object of the present invention is to provide a kind of cast-in-place concrete building terrace one-pass molding construction methods, with technique letter
Single, short construction period, high-quality, the low advantage of construction cost.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of cast-in-place concrete building terrace one-pass molding construction method, includes the following steps,
S1, concreting,
S1.1, before concreting, it is ensured that at the construction joint that continuous placing allows to be arranged to design or job specfication,
S1.2 when flooring concreting, mixes the concrete of handling certainly, and slump is controlled in 60+10mm, pumped concrete
Soil, slump are controlled in 120+12mm；
S1.3, concrete vibrating first use plug-in type vibrating stick vibration compacting, then are vibrated with plate vibrator, make it
Dense surface, bubble rise, and slurries uniformly occur, check the flat of newly-laid concrete face with floating rule after the concrete vibrating is closely knit
Whole situation；
S1.4 when casting concrete, does not allow concrete directly to impact angle steel, with tamper-proof bench mark；
S1.5 is led by operator by vibrating motor rotation direction is flat when concreting is vibrated using beam type plate
Draw the hauling rope for being located at the flat machine both ends that shake, concrete can vibrate striking off；
S2, angle steel is removed, and when concrete initial set, after angle steel two sides section concrete is struck off with floating rule, can be unloaded solid
Determine nut, take out angle steel, filled and led up immediately with concrete, it is flat to make real stranding；
S3, concrete vacuum water suction,
S3.1 should carry out preparation of construction before vacuum dehydration in advance, check whether vacuum pump assembly, water absorption pad are intact, carry out
Construction note prepares；
S3.2 is generally can be controlled in using the concrete of vacuum dehydration in the appropriate to the occasion appropriate increase water-cement ratio of mix-design
Between 0.5-0.55；
S3.3 when vacuum dehydration, vacuum mat is placed on and has poured vibrocast concrete surface, makes to filter smooth abutting
On concrete, the sealing condition around vacuum mat is then checked, and guarantee that suction areas has the overlap joint of 3cm twice；
S3.4, the control of absorbent time,
S3.5, when discovery concrete surface moisture obviously drain, i.e., be pressed in surface aphalangia trace with finger or foot stepped on and only stayed
Slight trace down, i.e., it is believed that vacuum suction is completed；
S4, mechanical flour milling, press polish,
S4.1 loads onto Special disc preliminary grinding 2-3 times, after use finisher to carry out face work after the completion of vacuum dehydration
The even compacting of troweling repeatedly after often smearing one time, will be beaten next time again after the evaporation of concrete surface moisture and be smeared；It uses simultaneously
3.5m-5.5m floating rule further progress, which is scraped, smears leveling；
S4.2 is recalled to be considered as after magma and is just smeared completions to entire surface layer screeding and compaction, and just dauber makees to control and mixing
It is completed soon after solidifying soil initial set；
S4.3 is ground time in a crisscross manner depending on the dry and wet situation of on-site concrete with multigraph press, and checks flatness until meeting
Until it is required that, this is fine grinding；
S4.4 removes disk, is polished with machine trowel, and until Land leveling is without sand holes, this is mill eventually；
S4.5, artificial iron plate receive light, erase machine trowel trace；
S5, flatness are checked, and are checked after mechanical polishing with guiding ruler, to guarantee the flatness of surface layer, in out-of-flatness
Place also needs to process finishing floating with hand.
It is preferred: in S1.3, ruler movement must with the ruler length of previous check point at least Chong Die 1/2,
Deviation position is adjusted, is repaired, and remakes rechecking, to meet flatness requirement.
It is preferred: in S1.4, using pre-buried angle steel mark as boundary, to stop blowing after being higher by angle steel 3-5cm, then vibrate close
Practical floating rule leans against and strikes off surface on angle steel.
Preferred: in S1.5, round-trip vibration twice, carries out speed control in 1m per minute.
Preferably, vacuum degree should gradually increase after booting in S3.3, reach defined vacuum degree (500-600mm
Mercury column) start after being normally discharged, vacuum degree should be kept uniform.
Preferably, in S3.4, when the thickness of cast-in-place walls is in 80-130mm, temperature on average is at 3 DEG C -10 DEG C round the clock,
11 DEG C -19 DEG C, 20 DEG C -25 DEG C and be greater than 25 DEG C, absorbent time control in 21s, 18s, 15s and 14s.
Preferably, before terminating water suction work, vacuum degree should gradually weaken, and prevent inside concrete from leaving in S3.5
Water passage out influences the compactness of concrete.
In conclusion the invention has the following advantages:
In floorslab concrete after the completion of pouring, concrete slab surface can reach the requirement that codes and standards use, concrete
The indices such as flatness, the finish of molded surface are attained by monolithic floor surface code requirement；
One-shot forming technique is simple, can thoroughly solve traditional flooring construction technology process complexity, and long construction period exists
Screed-coat hollowing cracking, dusting, the more low mass defect of surface strength, and can be reduced the secondary construction cost of terrace.
Specific embodiment
Invention is further described in detail below.
Embodiment 1: a kind of cast-in-place concrete building terrace one-pass molding construction method includes the following steps,
S1, concreting,
S1.1, before concreting, it is ensured that at the construction joint that continuous placing allows to be arranged to design or job specfication,
S1.2 when flooring concreting, mixes the concrete of handling certainly, and slump is controlled in 60+10mm, pumped concrete
Soil, slump are controlled in 120+12mm；
S1.3, concrete vibrating first use plug-in type vibrating stick vibration compacting, then are vibrated with plate vibrator, make it
Dense surface, bubble rise, and slurries uniformly occur, check the flat of newly-laid concrete face with floating rule after the concrete vibrating is closely knit
Whole situation；
S1.4 when casting concrete, does not allow concrete directly to impact angle steel, with tamper-proof bench mark；
S1.5 is led by operator by vibrating motor rotation direction is flat when concreting is vibrated using beam type plate
Draw the hauling rope for being located at the flat machine both ends that shake, concrete can vibrate striking off；
S2, angle steel is removed, and when concrete initial set, after angle steel two sides section concrete is struck off with floating rule, can be unloaded solid
Determine nut, take out angle steel, filled and led up immediately with concrete, it is flat to make real stranding；
S3, concrete vacuum water suction,
S3.1 should carry out preparation of construction before vacuum dehydration in advance, check whether vacuum pump assembly, water absorption pad are intact, carry out
Construction note prepares；
S3.2 is generally can be controlled in using the concrete of vacuum dehydration in the appropriate to the occasion appropriate increase water-cement ratio of mix-design
Between 0.5-0.55；
S3.3 when vacuum dehydration, vacuum mat is placed on and has poured vibrocast concrete surface, makes to filter smooth abutting
On concrete, the sealing condition around vacuum mat is then checked, and guarantee that suction areas has the overlap joint of 3cm twice；
S3.4, the control of absorbent time,
S3.5, when discovery concrete surface moisture obviously drain, i.e., be pressed in surface aphalangia trace with finger or foot stepped on and only stayed
Slight trace down, i.e., it is believed that vacuum suction is completed；
S4, mechanical flour milling, press polish,
S4.1 loads onto Special disc preliminary grinding 2-3 times, after use finisher to carry out face work after the completion of vacuum dehydration
The even compacting of troweling repeatedly after often smearing one time, will be beaten next time again after the evaporation of concrete surface moisture and be smeared；It uses simultaneously
3.5m-5.5m floating rule further progress, which is scraped, smears leveling；
S4.2 is recalled to be considered as after magma and is just smeared completions to entire surface layer screeding and compaction, and just dauber makees to control and mixing
It is completed soon after solidifying soil initial set；
S4.3 is ground time in a crisscross manner depending on the dry and wet situation of on-site concrete with multigraph press, and checks flatness until meeting
Until it is required that, this is fine grinding；
S4.4 removes disk, is polished with machine trowel, and until Land leveling is without sand holes, this is mill eventually；
S4.5, artificial iron plate receive light, erase machine trowel trace；
S5, flatness are checked, and are checked after mechanical polishing with guiding ruler, to guarantee the flatness of surface layer, in out-of-flatness
Place also needs to process finishing floating with hand.
In S1.3, ruler movement must with the ruler length of previous check point at least Chong Die 1/2, to deviation portion
Position is adjusted, repairs, and remakes rechecking, to meet flatness requirement.
In S1.4, using pre-buried angle steel mark as boundary, stop blowing after being higher by angle steel 3-5cm, then vibration compacting is with scraping
Ruler leans against and strikes off surface on angle steel.
In S1.5, round-trip vibration twice, carries out speed control in 1m per minute.
In S3.3, vacuum degree should be gradually increased after booting, reached defined vacuum degree (500-600mm mercury column) and started just
Often after water outlet, vacuum degree should be kept uniform.
In S3.4, when the thickness of cast-in-place walls is in 80-130mm, temperature on average is at 3 DEG C -10 DEG C, 11 DEG C -19 DEG C round the clock,
20 DEG C -25 DEG C and be greater than 25 DEG C, absorbent time control in 21s, 18s, 15s and 14s.
In S3.5, before terminating water suction work, vacuum degree should gradually weaken, and prevent inside concrete from leaving out water passage,
Influence the compactness of concrete.
In floorslab concrete after the completion of pouring, concrete slab surface can reach the requirement that codes and standards use, concrete
The indices such as flatness, the finish of molded surface are attained by monolithic floor surface code requirement；
One-shot forming technique is simple, can thoroughly solve traditional flooring construction technology process complexity, and long construction period exists
Screed-coat hollowing cracking, dusting, the more low mass defect of surface strength, and can be reduced the secondary construction cost of terrace.
Finally, it should be noted that the above embodiments are only used to illustrate and not limit the technical solutions of the present invention, although reference
Above-described embodiment describes the invention in detail, those skilled in the art should understand that: it still can be to this hair
Bright to be modified or replaced equivalently, without departing from the spirit and scope of the present invention, and appended claims are intended to fall into
These modifications or equivalent replacement in spirit and scope of the invention.
Claims (7)
1. a kind of cast-in-place concrete building terrace one-pass molding construction method, it is characterised in that: include the following steps,
S1, concreting,
S1.1, before concreting, it is ensured that at the construction joint that continuous placing allows to be arranged to design or job specfication,
S1.2 when flooring concreting, mixes the concrete of handling certainly, and slump control is in 60+10mm, pump concrete,
Slump is controlled in 120+12mm；
S1.3, concrete vibrating first use plug-in type vibrating stick vibration compacting, then are vibrated with plate vibrator, make its surface
Closely knit, bubble rises, and slurries uniformly occurs, checks the smooth feelings in newly-laid concrete face after the concrete vibrating is closely knit with floating rule
Condition；
S1.4 when casting concrete, does not allow concrete directly to impact angle steel, with tamper-proof bench mark；
S1.5 is set by operator by the flat traction of vibrating motor rotation direction when concreting is vibrated using beam type plate
In the hauling rope at flat machine both ends that shakes, concrete can vibrate striking off；
S2, angle steel are removed, and when concrete initial set, after angle steel two sides section concrete is struck off with floating rule, can unload fixed spiral shell
Mother takes out angle steel, is filled and led up immediately with concrete, and it is flat to make real stranding；
S3, concrete vacuum water suction,
S3.1 should carry out preparation of construction before vacuum dehydration in advance, check whether vacuum pump assembly, water absorption pad are intact, carry out construction
Record prepares；
S3.2 generally can be controlled in 0.5- using the concrete of vacuum dehydration in the appropriate to the occasion appropriate increase water-cement ratio of mix-design
Between 0.55；
S3.3 when vacuum dehydration, vacuum mat is placed on and has poured vibrocast concrete surface, make to filter it is smooth be tightly attached to it is mixed
On solidifying soil, the sealing condition around vacuum mat is then checked, and guarantee that suction areas twice has the overlap joint of 3cm；
S3.4, the control of absorbent time,
S3.5, when discovery concrete surface moisture is obviously drained, i.e., be pressed in surface aphalangia trace with finger or foot step on leave behind it is light
Micro- trace, i.e., it is believed that vacuum suction is completed；
S4, mechanical flour milling, press polish,
S4.1 loads onto Special disc preliminary grinding 2-3 times after use finisher to carry out face work after the completion of vacuum dehydration, uniformly anti-
Multiple troweling compacting after often smearing one time, will be beaten next time again after the evaporation of concrete surface moisture and be smeared；It uses simultaneously
3.5m-5.5m floating rule further progress, which is scraped, smears leveling；
S4.2 is recalled to be considered as after magma and is just smeared completions, and just dauber's work should be controlled in concrete to entire surface layer screeding and compaction
It is completed soon after initial set；
S4.3 is ground time in a crisscross manner depending on the dry and wet situation of on-site concrete with multigraph press, and checks flatness until meeting the requirements
Until, this is fine grinding；
S4.4 removes disk, is polished with machine trowel, and until Land leveling is without sand holes, this is mill eventually；
S4.5, artificial iron plate receive light, erase machine trowel trace；
S5, flatness review, is checked with guiding ruler after mechanical polishing, to guarantee the flatness of surface layer, in the place of out-of-flatness,
It also needs to process finishing floating with hand.
2. a kind of cast-in-place concrete building terrace one-pass molding construction method according to claim 1, it is characterised in that: In
In S1.3, ruler movement must be adjusted deviation position with the ruler length of previous check point at least Chong Die 1/2
Whole, repairing, and rechecking is remake, to meet flatness requirement.
3. a kind of cast-in-place concrete building terrace one-pass molding construction method according to claim 1, it is characterised in that: In
In S1.4, using pre-buried angle steel mark as boundary, stop blowing after being higher by angle steel 3-5cm, then vibration compacting leans against angle steel with floating rule
On surface is struck off.
4. a kind of cast-in-place concrete building terrace one-pass molding construction method according to claim 1, it is characterised in that: In
In S1.5, round-trip vibration twice, carries out speed control in 1m per minute.
5. a kind of cast-in-place concrete building terrace one-pass molding construction method according to claim 1, it is characterised in that: In
In S3.3, vacuum degree should be gradually increased after booting, reached defined vacuum degree (500-600mm mercury column) and started after being normally discharged,
Vacuum degree should be kept uniform.
6. a kind of cast-in-place concrete building terrace one-pass molding construction method according to claim 1, it is characterised in that: In
In S3.4, when the thickness of cast-in-place walls is in 80-130mm, temperature on average is at 3 DEG C -10 DEG C, 11 DEG C -19 DEG C, 20 DEG C -25 DEG C round the clock
And it is greater than 25 DEG C, absorbent time is controlled in 21s, 18s, 15s and 14s.
7. a kind of cast-in-place concrete building terrace one-pass molding construction method according to claim 1, it is characterised in that: In
In S3.5, before terminating water suction work, vacuum degree should gradually weaken, and prevent inside concrete from leaving out water passage, influence concrete
Compactness.
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| CN201810478285.8A CN110499893A (en) | 2018-05-18 | 2018-05-18 | A kind of cast-in-place concrete building terrace one-pass molding construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112727104A (en) * | 2020-12-30 | 2021-04-30 | 上海建工五建集团有限公司 | One-step forming structure terrace flatness control method |
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| US7614820B2 (en) * | 2006-04-07 | 2009-11-10 | Lithocrete, Inc. | Non-slick surface-seeded aggregate concrete and method of forming |
| CN104234430A (en) * | 2014-06-19 | 2014-12-24 | 中国建筑第四工程局有限公司 | Construction method for forming concrete terraces at one step |
| CN106836815A (en) * | 2017-03-08 | 2017-06-13 | 杭州二建建设有限公司 | Large area diamond dust floor structure plate and surface layer one-off construction method |
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2018
- 2018-05-18 CN CN201810478285.8A patent/CN110499893A/en active Pending
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|---|---|---|---|---|
| US7614820B2 (en) * | 2006-04-07 | 2009-11-10 | Lithocrete, Inc. | Non-slick surface-seeded aggregate concrete and method of forming |
| CN104234430A (en) * | 2014-06-19 | 2014-12-24 | 中国建筑第四工程局有限公司 | Construction method for forming concrete terraces at one step |
| CN106836815A (en) * | 2017-03-08 | 2017-06-13 | 杭州二建建设有限公司 | Large area diamond dust floor structure plate and surface layer one-off construction method |
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| CN112727104A (en) * | 2020-12-30 | 2021-04-30 | 上海建工五建集团有限公司 | One-step forming structure terrace flatness control method |
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| CB02 | Change of applicant information |
Address after: No. 199-2 Chengnan Road, Wuxi, Jiangsu Province, Jiangsu Applicant after: Donghong Construction Co.,Ltd. Address before: No. 199-2 Chengnan Road, Wuxi, Jiangsu Province, Jiangsu Applicant before: DONGHONG CONSTRUCTION Co.,Ltd. |
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Application publication date: 20191126 |
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