CN108824812A - A kind of cast-in-place fair-faced concrete wall pours and maintenance process - Google Patents
A kind of cast-in-place fair-faced concrete wall pours and maintenance process Download PDFInfo
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- CN108824812A CN108824812A CN201810594964.1A CN201810594964A CN108824812A CN 108824812 A CN108824812 A CN 108824812A CN 201810594964 A CN201810594964 A CN 201810594964A CN 108824812 A CN108824812 A CN 108824812A
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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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- 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
- E04G21/06—Solidifying concrete, e.g. by application of vacuum before hardening
- E04G21/08—Internal vibrators, e.g. needle vibrators
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- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
It is poured the present invention provides a kind of cast-in-place fair-faced concrete wall and maintenance process, including control clear-water concrete preparation process, control pouring exposed concrete technique, control concrete vibrating technique, concrete curing, template maintenance；Using technical solution of the present invention, the whipping temp of each component in strict control clear-water concrete, and it joined two kinds of admixtures, control the heat of hydration of clear-water concrete, the indices such as clear-water concrete slump are made to meet requirement, pouring construction pours mode using layer-by-layer, one layer is often poured concrete lift reasonably vibrate, escape the air contained in concrete completely, avoid the larger situation of internal-external temperature difference after concrete setting, effectively prevent concrete Surface Subsidence in condensation, there is the case where parting, concrete wall and template have been carried out respectively after the completion of pouring to conserve in river, extend the service life of dry concrete wall and template.
Description
Technical field
The invention belongs to construction engineering technical fields more particularly to a kind of cast-in-place fair-faced concrete wall to pour and conserve
Method.
Background technique
In recent years, with the development of building construction technology, under the support energetically of national policy, various novel building materials
Material, building structural element put into batch production with application extensively, have won social favorable comment, have achieved preferable economic value.
In building masonry wall construction operation, the wall body structure of reinforcing bar and concreting is generallyd use, fast with construction operation speed,
High-efficient, the advantages that wall body structure intensity is good, still, due to largely using normal concrete, when construction operation be easy to produce compared with
More dust causes the pollution to environment, and complaints are heard everywhere by the resident for causing in the neighboring area of construction site, in order to alleviate this office
Face, building enterprise start gradually using environment-friendly type building material, and clear-water concrete is one of which, refers to that surface color is basic
Unanimously, using the natural texture of concrete itself, pass through the split bolt for the regular arrangement that well-designed, well construction is formed
Eyelet, artificial eye, outseam, cicada stitch the concrete works as finishing effect, currently, fair-faced concrete obtains in construction projects
To more and more applications.In existing concrete engineering, concrete wall generation is that concrete wall internal-external temperature difference is larger,
The heating and temperature-fall period in early stage occurs：
Temperature rise period：After concreting, hydration heat of cement is high, and the heat for being gathered in inside concrete is not easy to distribute, temperature
It is very high to spend peak value, and concrete surface heat dissipation is very fast, causes internal-external temperature difference larger, is constrained at this time by concrete itself, in structure
Inside generates compression, and surface generates tensile stress, and when tensile stress is more than the ultimate tensile strength of concrete, concrete generation is split
Seam.
Temperature-fall period：Start gradually cooling within the 4th day after concreting and generate shrinkage, in addition course of hardening
In contraction itself, when the constraint by external (ground, bed course etc.), and biggish cooling shrinkage tensile stress will be generated, such as
More than the age concrete ultimate tensile strength when, i.e., generation crack.
Especially in southern high-temperature season, the outdoor highest temperature is up to 50 DEG C or so, and superpower sunlight irradiation time is up to
12 hours, the fast generation desciccation crack of age of concrete internal cause dehydration was more serious, and especially underground requires impervious thin wall concrete
Continuous long wall, the every 2-3m in crack or so that dehydration drying shrinkage generates just have 1, cause infiltration serious.
In terms of concrete crack Producing reason, mainly have constitute concrete raw material (such as cement, coarse-fine aggregate,
Admixture, additive etc.) and its reasons such as match ratio, but to the construction stage, control that concrete crack can do just only
From rationally dividing storehouse, moisture-keeping maintaining, delay several respects such as demoulding, and concrete moisture retention maintenance is wherein main, most critical work
Sequence, and unique method of the control concrete because being dehydrated desciccation crack, but because being limited moisture-keeping maintaining hardly possible by execution conditions and duration
It spends very big.
Summary of the invention
In order to solve the above technical problems, being poured the present invention provides a kind of cast-in-place fair-faced concrete wall and the side of maintenance
Method.
The present invention is achieved by the following technical programs.
The present invention provides a kind of cast-in-place fair-faced concrete wall and pours and maintenance process, includes the following steps：
A, clear-water concrete preparation process is controlled
(1) clear-water concrete is evenly mixed in blender by water, cement, sandstone aggregate, the sandstone bone
Material is uniformly mixed by stone, sand and at least two admixtures mixing and stirring in container, and the admixture quality accounts for sandstone bone
Expect the 25% to 30% of quality；
(2) admixture is transported using special transportation vehicle, is added before admixture in sandstone aggregate, is held to mixing and stirring
Device is cleaned, and ponding therein is removed；
(3) cement is stored in draughty interior, cement stores the duration greater than 2 days, sets up sunshade and be used for
Sandstone aggregate is stored, water spray is wet in advance before entering blender and cools down for sandstone aggregate, and control sandstone aggregate enters blender
When temperature be within 18 DEG C to 20 DEG C, stirring water was previously added appropriate ice cube before entering blender, control stirring water into
Temperature when entering blender is 5 DEG C to 8 DEG C；
(4) raw material being sent into blender continuously stir by batch, wherein every batch of mixing time is not less than
120s, temperature when control concrete output blender control concrete after exporting blender within 60 days less than 25 DEG C
Drying shrinkage is less than 0.022%；
B, pouring exposed concrete technique is controlled
(1) before pouring construction, wall skeleton is first set up on the ground, then in wall skeleton surrounding side installation template, control
Concrete processed, which was exported from blender to the interval time before entering template, is less than 40min, before clear-water concrete enters template
Remove all sundries in template；
(2) placement layer by layer construction is carried out to the cast-in-place fair-faced concrete wall of continuous height, wherein the bottom is laid with water
Cement mortar controls cement sand bed with a thickness of 30mm to 50mm, controls height of the cement mortar release position relative to cement sand bed
Degree is less than 3m, remaining each layer pours clear-water concrete according to direction from bottom to top, controls concrete lift with a thickness of 400mm
To 500mm, height 2m of the clear-water concrete release position relative to concrete lift is controlled；Control the construction of concrete lift
Interval time was less than 0.5 day, so that air sufficiently discharges in clear-water concrete；
(3) temperature when casting concrete enters template is controlled；
Pouring exposed concrete selection of time in the afternoon 16:Morning 11 00 to next day:00, scene is also needed to concrete tank
With concrete mixer delivery pipe spray cooling, 5 DEG C to 28 DEG C of temperature when clear-water concrete being made to enter template, control clear water is mixed
Solidifying soil surface and internal maximum temperature difference control clear-water concrete rate of temperature fall less than 4 DEG C/day less than 25 DEG C；
C, concrete vibrating technique is controlled
Clear-water concrete is poured according to direction from bottom to top, every layer concrete pouring layer uses vibration after pouring immediately
Tamper vibrates to it, first vibrates to concrete lift middle part, then vibrating spear is moved to concrete lift surrounding
It vibrates, the duration of vibrating for the location point that each vibrates is 20s to 30s, and control vibrating spear insertion depth is greater than concrete
Height of lift height pattern 50mm to 100mm makes the closely knit combination of the clear-water concrete with the bubble being discharged in the clear-water concrete；
D, concrete curing
(1) when constructing in winter, select polystyrene board, curing agent, plastic film and slow burning straw curtain as protective materials,
Polystyrene board is attached at the wall form outer surface before form removal, after form removal, cast-in-place fair-faced
Coating plastic film after brushing curing agent on concrete walls external surface, then hung in cast-in-place fair-faced concrete wall outer side
Slow burning straw curtain is connect, is covered in slow burning straw curtain on plastic film；
(2) it in non-winter construction, selects plastic film, slow burning straw curtain as protective materials, is removing the wall mould
After plate, suitable quantity of water is sprayed to cast-in-place two side external surface of fair-faced concrete wall, it is cast-in-place to reuse plastic film cladding
Fair-faced concrete exterior surface of wall, then slow burning straw curtain is mounted in the cast-in-place fair-faced concrete wall outer side, make to hinder
Combustion straw screen or mat is covered on plastic film；
E, template conserves
(1) template is made using Metal Material Welding, and template and wall bone first is isolated with woollen blanket using before template in assembly
Frame avoids wall skeleton from damaging template, removes template immediately after template is removed from cast-in-place four side of fair-faced concrete wall
The impurity adhered on surface, in template surface brushing release agent；
(2) template to be deposited in draughty warehouse, steel pipe frame is set up in warehouse, every two pieces of templates are one group,
In every group two pieces of templates toward each other insert on the spot deposits on steel pipe frame, reuse plastic cloth be covered in all template outer surfaces it
On.
The wall skeleton is made of several vertical reinforcements, transverse steel, longitudinal reinforcements, and vertical reinforcement is inserted in ground
On and around formed a closed rectangular wall body profile, longitudinal reinforcement along wall contour length direction arrange and put down
Row in ground, transverse steel arrange and be parallel to along wall contour width direction ground, vertical reinforcement and transverse steel or
The longitudinal reinforcement junction that intersects welds together.
The template includes rectangular panel, and the side of panel is abutted with the wall skeleton circumferential lateral surface, panel it is another
It is stupefied that side is respectively disposed with several vertical stupefied and several transverse directions time, vertical time it is stupefied along panel length direction according between centainly
It is laterally time stupefied to be arranged in juxtaposition along panel width direction according to a fixed spacing away from being arranged in juxtaposition, panel, vertical time it is stupefied or laterally time
Stupefied any junction of intersection two-by-two welds together.
It is section steel beam that cross section is "Ji" type that described vertical time stupefied.
The stupefied transverse direction time is clod wash C-type steel.
In step a, the admixture is silicon powder, flyash, ground slag powder, natural zeolite powder wherein any two kinds of group
It closes.
It further include in two pieces of wall form junction adhesive seals of arbitrary neighborhood when installing and using template in step e
Item.
In step a, the blender is two shaft pugmill mixer.
In step b, it further includes making that the cast-in-place fair-faced concrete wall to continuous height, which carries out placement layer by layer construction,
Concrete lift thickness is controlled with scale bar.
The beneficial effects of the present invention are：Using technical solution of the present invention, template, wall are made using metal structural section
Skeleton is formed using bar splicing, is just reasonably managed to the storage and transport of raw material in clear-water concrete preparatory phase
Two kinds of admixtures, the heat of hydration of strict control clear-water concrete are added into clear-water concrete for reason in each component, it is ensured that clear water is mixed
Solidifying soil uniform color, bubble-free, the slump are met the requirements, and texture is applied naturally, eliminating and picking chisel repairing, plastering, architectural surface etc.
Work process, alleviates construction personnel's labor intensity, when pouring construction by the way of layer-by-layer pouring construction, often pours one layer of coagulation
Soil just immediately vibrates to it, escapes the air contained in concrete completely, avoids internal-external temperature difference after concrete setting
Larger situation effectively prevents concrete Surface Subsidence in condensation, the case where parting occurs, pour the concrete walls to be formed
Body is conserved using simple construction technology, effectively prevents the life that crack or fine cracks occurs in concrete wall surface
It is long, impurity pollution concrete wall is avoided, concrete wall service life is extended, in addition, being carried out to the template after using
Reasonable storage and maintenance, are beneficial to prevent template and deform, reuse template can, extend making for template
With the service life, bare concrete wall is seamless, cracks without hollowing, is conducive to moisture-proof and seepage-proof, compares common building materials, also has
The advantages such as cost price is cheap.
Specific embodiment
Be described further below technical solution of the present invention, but claimed range be not limited to it is described.
The present invention provides a kind of cast-in-place fair-faced concrete wall and pours and maintenance process, includes the following steps：
A, clear-water concrete preparation process is controlled
(1) clear-water concrete is evenly mixed in blender by water, cement, sandstone aggregate, the sandstone bone
Material is uniformly mixed by stone, sand and at least two admixtures mixing and stirring in container, and the admixture quality accounts for sandstone bone
Expect the 25% to 30% of quality；
(2) admixture is transported using special transportation vehicle, is added before admixture in sandstone aggregate, is held to mixing and stirring
Device is cleaned, and ponding therein is removed；
(3) cement is stored in draughty interior, cement stores the duration greater than 2 days, sets up sunshade and be used for
Sandstone aggregate is stored, water spray is wet in advance before entering blender and cools down for sandstone aggregate, and control sandstone aggregate enters blender
When temperature be within 18 DEG C to 20 DEG C, stirring water was previously added appropriate ice cube before entering blender, control stirring water into
Temperature when entering blender is 5 DEG C to 8 DEG C；
(4) raw material being sent into blender continuously stir by batch, wherein every batch of mixing time is not less than
120s, temperature when control concrete output blender control concrete after exporting blender within 60 days less than 25 DEG C
Drying shrinkage is less than 0.022%；
Further, the admixture is wherein any two kinds of silicon powder, flyash, ground slag powder, natural zeolite powder
Combination.In step a, the blender is two shaft pugmill mixer.
B, pouring exposed concrete technique is controlled
(1) before pouring construction, wall skeleton is first set up on the ground, then in wall skeleton surrounding side installation template, control
Concrete processed, which was exported from blender to the interval time before entering template, is less than 40min, before clear-water concrete enters template
Remove all sundries in template；
Further, the wall skeleton is made of several vertical reinforcements, transverse steel, longitudinal reinforcements, vertical reinforcement
It is inserted on ground and surrounds and form a closed rectangular wall body profile, longitudinal reinforcement is along wall contour length direction
Arrange and be parallel to ground, ground is arranged along wall contour width direction and be parallel to transverse steel, vertical reinforcement with
Transverse steel or the longitudinal reinforcement junction that intersects weld together.
(2) placement layer by layer construction is carried out to the cast-in-place fair-faced concrete wall of continuous height, wherein the bottom is laid with water
Cement mortar controls cement sand bed with a thickness of 30mm to 50mm, controls height of the cement mortar release position relative to cement sand bed
Degree is less than 3m, remaining each layer pours clear-water concrete according to direction from bottom to top, controls concrete lift with a thickness of 400mm
To 500mm, height 2m of the clear-water concrete release position relative to concrete lift is controlled；Control the construction of concrete lift
Interval time was less than 0.5 day, so that air sufficiently discharges in clear-water concrete；Further, described to the cast-in-place of continuous height
It further includes controlling concrete lift thickness using scale bar that fair-faced concrete wall, which carries out placement layer by layer construction,.Further
Ground can pour at discharging point using the continued access of blanking hose, strict control coagulation if pouring exposed concrete drop is more than 2 meters
Native height fall is less than 2m.
(3) temperature when casting concrete enters template is controlled；
Pouring exposed concrete selection of time in the afternoon 16:Morning 11 00 to next day:00, scene is also needed to concrete tank
With concrete mixer delivery pipe spray cooling, 5 DEG C to 28 DEG C of temperature when clear-water concrete being made to enter template, control clear water is mixed
Solidifying soil surface and internal maximum temperature difference control clear-water concrete rate of temperature fall less than 4 DEG C/day less than 25 DEG C；
C, concrete vibrating technique is controlled
Clear-water concrete is poured according to direction from bottom to top, every layer concrete pouring layer uses vibration after pouring immediately
Tamper vibrates to it, first vibrates to concrete lift middle part, then vibrating spear is moved to concrete lift surrounding
It vibrates, the duration of vibrating for the location point that each vibrates is 20s to 30s, and control vibrating spear insertion depth is greater than concrete
Height of lift height pattern 50mm to 100mm makes the closely knit combination of the clear-water concrete with the bubble being discharged in the clear-water concrete；
Further, in process of vibrating, in same layer concrete lift, position of vibrating preferably is in the dotted cloth of plum blossom
It sets, when vibrating using vibrating spear, can carry out twitching up and down, when wall reserves door and window position edge and vibrated, clear water is mixed
Solidifying soil when pouring should from door-window opening two sides blanking, be at least 300mm apart from door-window opening position using vibrating spear when vibrating,
And vibrate simultaneously in door-window opening two sides, it is deformed with hole.
D, concrete curing
(1) when constructing in winter, select polystyrene board, curing agent, plastic film and slow burning straw curtain as protective materials,
Polystyrene board is attached at the wall form outer surface before form removal, after form removal, cast-in-place fair-faced
Coating plastic film after brushing curing agent on concrete walls external surface, then hung in cast-in-place fair-faced concrete wall outer side
Slow burning straw curtain is connect, is covered in slow burning straw curtain on plastic film；
(2) it in non-winter construction, selects plastic film, slow burning straw curtain as protective materials, is removing the wall mould
After plate, suitable quantity of water is sprayed to cast-in-place two side external surface of fair-faced concrete wall, it is cast-in-place to reuse plastic film cladding
Fair-faced concrete exterior surface of wall, then slow burning straw curtain is mounted in the cast-in-place fair-faced concrete wall outer side, make to hinder
Combustion straw screen or mat is covered on plastic film；
E, template conserves
(1) template is made using Metal Material Welding, and further, the template includes rectangular panel, the side of panel
It is abutted with the wall skeleton circumferential lateral surface, the other side of panel is respectively disposed with several vertical stupefied and several transverse directions time
Stupefied, vertical time stupefied to be arranged in juxtaposition along panel length direction according to a fixed spacing, laterally it is time stupefied along panel width direction according to
One fixed spacing is arranged in juxtaposition, and panel, vertical time stupefied or lateral time stupefied any junction of intersection two-by-two weld together.It is described vertical
It is secondary it is stupefied be section steel beam that cross section is "Ji" type.The stupefied transverse direction time is clod wash C-type steel.Assembly is first used using before template
Template and wall skeleton is isolated in woollen blanket, and wall skeleton is avoided to damage template, by template from cast-in-place fair-faced concrete wall surrounding
The impurity adhered on template surface is removed in side immediately after removing, in template surface brushing release agent；Further, it is installing and using
It further include in two pieces of wall form junction adhesive seal items of arbitrary neighborhood when template.Using technical solution provided by the invention,
Make metal form in concreting engineering, the plank sheathing used compared to the prior art, after enhancing concreting forming
Wall structural strength, be more easily controlled the structure size of wall, and smooth surface, be conducive to improve concrete
Engineering pouring quality.
(2) template to be deposited in draughty warehouse, steel pipe frame is set up in warehouse, every two pieces of templates are one group,
In every group two pieces of templates toward each other insert on the spot deposits on steel pipe frame, reuse plastic cloth be covered in all template outer surfaces it
On.
Using technical solution of the present invention, template is made using metal structural section, wall skeleton is formed using bar splicing,
Just the storage and transport of raw material are reasonably managed in clear-water concrete preparatory phase, each component into clear-water concrete
Two kinds of admixtures of interior addition, the heat of hydration of strict control clear-water concrete, it is ensured that clear-water concrete uniform color, is collapsed at bubble-free
Degree of falling is met the requirements, and texture picks the working procedures such as chisel repairing, plastering, architectural surface naturally, eliminating, and alleviates construction personnel's labor
Fatigue resistance often pours a layer concrete with regard to vibrating immediately to it, makes when pouring construction by the way of layer-by-layer pouring construction
The air contained in concrete escapes completely, avoids the larger situation of internal-external temperature difference after concrete setting, effectively prevents mixing
, there is the case where parting in solidifying soil Surface Subsidence in condensation, pour the concrete wall to be formed using simple construction technology into
Row maintenance, effectively prevents the growth that crack or fine cracks occurs in concrete wall surface, avoids impurity pollution concrete
Wall extends concrete wall service life, in addition, having carried out reasonable storage and maintenance to the template after using, favorably
In preventing template from deforming, reuse template can, extend the service life of template, bare concrete wall without
Seam, without hollowing cracking, be conducive to moisture-proof and seepage-proof, compare common building materials, also there are the advantages such as cost price is cheap.
Claims (9)
1. a kind of cast-in-place fair-faced concrete wall pours and maintenance process, it is characterised in that：Include the following steps：
A, clear-water concrete preparation process is controlled
(1) clear-water concrete is evenly mixed in blender by water, cement, sandstone aggregate, the sandstone aggregate by
Stone, sand and at least two admixtures are uniformly mixed mixing and stirring in container, and the admixture quality accounts for sandstone aggregate matter
The 25% to 30% of amount；
(2) admixture is transported using special transportation vehicle, in sandstone aggregate be added admixture before, to mix and stir container into
Row cleaning, removes ponding therein；
(3) cement is stored in draughty interior, cement stored the duration greater than 2 days, set up sunshade for storing
Sandstone aggregate, water spray is wet in advance before entering blender and cools down for sandstone aggregate, when control sandstone aggregate enters blender
Temperature is within 18 DEG C to 20 DEG C, and stirring water was previously added appropriate ice cube before entering blender, and control stirring water, which enters, to be stirred
Temperature when mixing machine is 5 DEG C to 8 DEG C；
(4) raw material being sent into blender continuously stir by batch, wherein every batch of mixing time is not less than 120s,
Temperature when control concrete output blender is less than 25 DEG C, and controlling concrete, drying is received within 60 days after exporting blender
Shrinkage is less than 0.022%；
B, pouring exposed concrete technique is controlled
(1) before pouring construction, wall skeleton is first set up on the ground, then in wall skeleton surrounding side installation template, control is mixed
Solidifying soil, which was exported from blender to the interval time before entering template, is less than 40min, and clear-water concrete is removed before entering template
All sundries in template；
(2) placement layer by layer construction is carried out to the cast-in-place fair-faced concrete wall of continuous height, wherein the bottom is laid with cement bonded sand
Slurry controls cement sand bed with a thickness of 30mm to 50mm, it is small relative to the height of cement sand bed to control cement mortar release position
In 3m, remaining each layer pours clear-water concrete according to direction from bottom to top, controls concrete lift with a thickness of 400mm extremely
500mm controls height 2m of the clear-water concrete release position relative to concrete lift；Between the construction for controlling concrete lift
Every the time less than 0.5 day, so that air sufficiently discharges in clear-water concrete；
(3) temperature when casting concrete enters template is controlled；
Pouring exposed concrete selection of time in the afternoon 16:Morning 11 00 to next day:00, scene also needs to concrete tank and mixes
Solidifying soil pump truck delivery pipe spray cooling, 5 DEG C to 28 DEG C of temperature when clear-water concrete being made to enter template control clear-water concrete
Surface and internal maximum temperature difference control clear-water concrete rate of temperature fall less than 4 DEG C/day less than 25 DEG C；
C, concrete vibrating technique is controlled
Clear-water concrete is poured according to direction from bottom to top, every layer concrete pouring layer uses vibrating spear after pouring immediately
It vibrates to it, first vibrates to concrete lift middle part, then vibrating spear is moved into concrete lift surrounding and is carried out
It vibrates, the duration of vibrating for the location point that each vibrates is 20s to 30s, and control vibrating spear insertion depth is greater than concreting
Thickness degree 50mm to 100mm makes the closely knit combination of the clear-water concrete with the bubble being discharged in the clear-water concrete；
D, concrete curing
(1) it when constructing in winter, selects polystyrene board, curing agent, plastic film and slow burning straw curtain as protective materials, is tearing open
Polystyrene board is attached at the wall form outer surface before removing template, after form removal, in cast-in-place fair-faced coagulation
Coating plastic film after brushing curing agent on cob wall external surface, then mount and hinder in cast-in-place fair-faced concrete wall outer side
Straw screen or mat is fired, is covered in slow burning straw curtain on plastic film；
(2) in non-winter construction, select plastic film, slow burning straw curtain as protective materials, after removing the wall form,
Suitable quantity of water is sprayed to cast-in-place two side external surface of fair-faced concrete wall, it is clear to reuse the cast-in-place facing of plastic film cladding
Water coagulation cob wall external surface, then slow burning straw curtain is mounted in the cast-in-place fair-faced concrete wall outer side, make slow burning straw curtain
It is covered on plastic film；
E, template conserves
(1) template is made using Metal Material Welding, and template and wall skeleton first is isolated with woollen blanket using before template in assembly,
It avoids wall skeleton from damaging template, removes template surface immediately after template is removed from cast-in-place four side of fair-faced concrete wall
The impurity of upper attachment, in template surface brushing release agent；
(2) template is deposited in draughty warehouse, steel pipe frame is set up in warehouse, every two pieces of templates are one group, every group
Interior two pieces of templates insert on the spot deposit on steel pipe frame toward each other, reuse plastic cloth and are covered on all template outer surfaces.
2. cast-in-place fair-faced concrete wall as described in claim 1 pours and maintenance process, it is characterised in that：The wall
Skeleton is made of several vertical reinforcements, transverse steel, longitudinal reinforcements, and vertical reinforcement is inserted on ground and around formation
One closed rectangular wall body profile, longitudinal reinforcement are arranged along wall contour length direction and are parallel to ground, lateral steel
Muscle arranges along wall contour width direction and is parallel to ground, and vertical reinforcement and transverse steel or longitudinal reinforcement intersect knot
Weld together at conjunction.
3. cast-in-place fair-faced concrete wall as described in claim 1 pours and maintenance process, it is characterised in that：The template
Including rectangular panel, the side of panel is abutted with the wall skeleton circumferential lateral surface, and the other side of panel is respectively disposed with several
Vertical stupefied and several transverse direction time of root is stupefied, and vertical time stupefied to be arranged in juxtaposition along panel length direction according to a fixed spacing, lateral
It is secondary it is stupefied be arranged in juxtaposition along panel width direction according to a fixed spacing, panel, vertical time it is stupefied or laterally time stupefied arbitrarily intersect two-by-two
Junction welds together.
4. cast-in-place fair-faced concrete wall as claimed in claim 3 pours and maintenance process, it is characterised in that：It is described vertical
It is secondary it is stupefied be section steel beam that cross section is "Ji" type.
5. cast-in-place fair-faced concrete wall as described in claim 1 pours and maintenance process, it is characterised in that：The transverse direction
It is secondary stupefied for clod wash C-type steel.
6. cast-in-place fair-faced concrete wall as described in claim 1 pours and maintenance process, it is characterised in that：In step a,
The admixture is wherein any two kinds of the combination of silicon powder, flyash, ground slag powder, natural zeolite powder.
7. cast-in-place fair-faced concrete wall as described in claim 1 pours and maintenance process, it is characterised in that：In step e,
It further include in two pieces of wall form junction adhesive seal items of arbitrary neighborhood when installing and using template.
8. cast-in-place fair-faced concrete wall as described in claim 1 pours and maintenance process, it is characterised in that：In step a,
The blender is two shaft pugmill mixer.
9. cast-in-place fair-faced concrete wall as described in claim 1 pours and maintenance process, it is characterised in that：In step b,
It further includes controlling coagulation using scale bar that the cast-in-place fair-faced concrete wall to continuous height, which carries out placement layer by layer construction,
Native height of lift height pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810594964.1A CN108824812A (en) | 2018-06-11 | 2018-06-11 | A kind of cast-in-place fair-faced concrete wall pours and maintenance process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810594964.1A CN108824812A (en) | 2018-06-11 | 2018-06-11 | A kind of cast-in-place fair-faced concrete wall pours and maintenance process |
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| Publication Number | Publication Date |
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| CN108824812A true CN108824812A (en) | 2018-11-16 |
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| CN109605568A (en) * | 2019-01-28 | 2019-04-12 | 卜旺杰 | A kind of concrete and decoration material synchronize pour Integral molding device for insoles |
| CN109868923A (en) * | 2019-03-11 | 2019-06-11 | 深圳市建工集团股份有限公司 | One kind, which dissipates, spells plank sheathing exposed concrete construction method |
| CN110107089A (en) * | 2019-05-15 | 2019-08-09 | 平煤神马建工集团有限公司 | Municipal works clear-water concrete casting construction method |
| CN110183182A (en) * | 2019-06-04 | 2019-08-30 | 中国建筑第八工程局有限公司 | A kind of High-performance clean water concrete |
| CN111502281A (en) * | 2020-04-27 | 2020-08-07 | 中天交通建设投资集团有限公司 | Municipal engineering clear water concrete pouring construction method |
| WO2021088394A1 (en) * | 2019-11-04 | 2021-05-14 | 南京毛勒工程材料有限公司 | Pouring method for filler in anchorage zone of expansion joint |
| CN113863541A (en) * | 2021-09-29 | 2021-12-31 | 中国建筑第八工程局有限公司 | Construction method of ultra-long thin-wall clear water concrete wall |
| CN114150871A (en) * | 2021-09-26 | 2022-03-08 | 中建三局集团有限公司 | Construction method of overlong cast-in-place facing clear water concrete decorative thin wall |
| CN114474357A (en) * | 2022-01-26 | 2022-05-13 | 陕西瑞盾建筑工程有限公司 | Method for manufacturing light-transmitting concrete floor tile |
| CN114809603A (en) * | 2022-04-29 | 2022-07-29 | 中铁城建集团第二工程有限公司 | Construction method for fair-faced concrete of special-shaped structure canopy veneer of high-speed rail station house |
| CN115140984A (en) * | 2022-08-05 | 2022-10-04 | 山西八建集团有限公司 | Bare concrete suitable for special-shaped structure veneer |
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| CN109605568B (en) * | 2019-01-28 | 2024-05-14 | 卜旺杰 | Synchronous pouring integrated device for concrete and decorative material |
| CN109605568A (en) * | 2019-01-28 | 2019-04-12 | 卜旺杰 | A kind of concrete and decoration material synchronize pour Integral molding device for insoles |
| CN109868923A (en) * | 2019-03-11 | 2019-06-11 | 深圳市建工集团股份有限公司 | One kind, which dissipates, spells plank sheathing exposed concrete construction method |
| CN110107089A (en) * | 2019-05-15 | 2019-08-09 | 平煤神马建工集团有限公司 | Municipal works clear-water concrete casting construction method |
| CN110183182A (en) * | 2019-06-04 | 2019-08-30 | 中国建筑第八工程局有限公司 | A kind of High-performance clean water concrete |
| WO2021088394A1 (en) * | 2019-11-04 | 2021-05-14 | 南京毛勒工程材料有限公司 | Pouring method for filler in anchorage zone of expansion joint |
| CN111502281A (en) * | 2020-04-27 | 2020-08-07 | 中天交通建设投资集团有限公司 | Municipal engineering clear water concrete pouring construction method |
| CN114150871A (en) * | 2021-09-26 | 2022-03-08 | 中建三局集团有限公司 | Construction method of overlong cast-in-place facing clear water concrete decorative thin wall |
| CN113863541A (en) * | 2021-09-29 | 2021-12-31 | 中国建筑第八工程局有限公司 | Construction method of ultra-long thin-wall clear water concrete wall |
| CN114474357A (en) * | 2022-01-26 | 2022-05-13 | 陕西瑞盾建筑工程有限公司 | Method for manufacturing light-transmitting concrete floor tile |
| CN114809603A (en) * | 2022-04-29 | 2022-07-29 | 中铁城建集团第二工程有限公司 | Construction method for fair-faced concrete of special-shaped structure canopy veneer of high-speed rail station house |
| CN114809603B (en) * | 2022-04-29 | 2023-12-01 | 中铁城建集团第二工程有限公司 | Construction method for awning facing bare concrete of special-shaped structure of high-speed rail station house |
| CN115140984A (en) * | 2022-08-05 | 2022-10-04 | 山西八建集团有限公司 | Bare concrete suitable for special-shaped structure veneer |
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Application publication date: 20181116 |