CN109424188A - The technique of pouring exposed concrete is used in construction - Google Patents
The technique of pouring exposed concrete is used in construction Download PDFInfo
- Publication number
- CN109424188A CN109424188A CN201710743754.XA CN201710743754A CN109424188A CN 109424188 A CN109424188 A CN 109424188A CN 201710743754 A CN201710743754 A CN 201710743754A CN 109424188 A CN109424188 A CN 109424188A
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- CN
- China
- Prior art keywords
- concrete
- demoulding
- maintenance
- pump
- curing
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses the technique for using pouring exposed concrete in construction, concrete stirring will be conveyed, concrete pump will be placed on solid ground by match ratio strict measurement using pump；Concrete vibration time is grasped, until when concrete surface is presented uniform cement slurry, emits on there is no significant sinking and a large amount of bubbles；Should be after concrete cooling extremely+5 DEG C, when surface temperature of concrete and ambient temperature differences are greater than 15 DEG C after demoulding, covering curing is answered on surface, makes its Slow cooling；Demoulding when test piece intensity of concrete under the conditions of same reaches 3MPa or 4MPa, it should be conserved in time after demoulding, there is phenomena such as color difference, contraction fissure to reduce concrete surface, the method that clear-water concrete is often taken plastic covering film or slow burning straw curtain and combined with sprinkling maintenance, it should all sprinkle water before demoulding and often in maintenance processes and keep wet, curing time is no less than 7d, and the present invention is met the requirements after capable of guaranteeing pouring exposed concrete, and the service life is longer for concrete.
Description
Technical field
The present invention relates to a kind of architectural construction technologies, and in particular to one kind uses pouring exposed concrete in construction
Technique.
Background technique
Building is based on timber buildings, and the traditional architecture in west is based on masonry structure.Modern building is then with steel
Based on reinforced concrete.
Chinese ancient architecture has simple simple and elegant style, is knot with yoke structure mainly using cogongrass, timber as construction material
Structure mode (components such as column, beam, a tree, used in making timber for boats, purlin, rafter) is combined according to actual size, shape and the spacing that structure needs.It is this
Building structure mode reflects the clear, orderly of ancient times patriarchal society structure and stablizes.Due to wooden material production beam column not
Huge inner space is easily formed, ancient architecture just dexterously using outport place, forms garden.Garden is the base of building
Our unit, it is both closed and open；Be both it is artificial and naturally, can bow and plant flowers, plants and trees, face upward and serve as a lookout
Cloud life becomes the another performance of ancients " harmony between man and nature " idea, also embodies Chinese's not only implicit introversion, but also pioneer and keep forging ahead
National character.The groups of building that ancient times somewhat larger building is all made of several gardens, single building and garden are along one
Move towards to arrange calmly, it is A distinction should be made between what is primary and what is secondary, there is climax to have transition, become the space for the depth that has levels, has, shows a kind of Chinese and chased after
The integrated beauty and deep beauty asked.Wherein palace, the building that temple one kind is more solemn, often one by one along central axes
It is longitudinally arranged key construction, monosymmetric arrangement secondary structure, arrangement balancing is unfolded, fascinating.
Ancients can achieve the effect that beauty with the design techniques such as balance, harmonious, symmetrical, light and shade axis very early.Ancient times
Weight artistic decoration is built, but uncomplicated, only makees emphasis decoration, such as window hood, lintel, ridge in main portions, layout is mostly to weigh
Square to development, skyscraper is not weighed, until there is building pagoda, high building is just able to prevailing after Buddhism is incoming.The one of building
Cutting art processing is also all processing to structural system and component, if color, decoration are in conjunction with component, constitute enrich it is gorgeous
Art achievements, carved beams and painted rafter, body are graceful and colorful；Couplet written on scrolls and hung on the pillars of a hall horizontal inscribed board, excites interest and charm and reverie is infinite, ancient architecture category
It is flouring, including palace, cemetery park, monastery, palace sight, gardens, bridge, tower brake etc..
Due to being not well mastered skill when the concreting of existing building, cause it is easy to crack after pouring exposed concrete and
There is hollowing, influences later period use.
Summary of the invention
The technical problem to be solved by the present invention is to, due to being not well mastered skill, make when the concreting of existing building
At easy to crack and hollowing occur after pouring exposed concrete, influencing the later period is used, and it is an object of the present invention to provide one kind is in construction
Using the technique of pouring exposed concrete, due to being not well mastered skill when solving the concreting of existing building, cause clear
The problem of water coagulation soil pours rear easy to crack and hollowing occurs, influences later period use.
The present invention is achieved through the following technical solutions:
The technique of pouring exposed concrete is used in construction, comprising the following steps:
(1) concrete stirs: concrete stirring will be by match ratio strict measurement, concrete strength grade C30；It uses
P.o42.5 grade composite silicate cement, select river sand, stone be 16~31.5mm rubble, weight ratio are as follows: water: cement: river sand:
Stone: additive=0.457: 1.000: 2.498: 3.747: 0.060, additive be FS-A waterproofing agent, the ratio of mud are as follows: 0.457:
1, every cube of concrete water dosage is 143kg, cement consumption 313kg, river sand dosage 782kg, stone dosage 1172kg, additive
For 18.8kg；
(2) concrete transportation: using pump conveying, concrete pump will be placed on solid ground, and when adapter tube, connector is necessary
It firmly installs, stablize, connector adds washer sealing；Pump concrete must assure that concrete pump energy continuous work, such as break down
Idle hours is more than that 10 minutes or concrete have occurred " isolating " phenomenon, should be rinsed in net pipe with pressure water or other methods immediately
Remaining concrete；
(3) concreting, vibrate: grasp concrete vibration time, with concrete surface present uniform cement slurry,
Until when emitting on there is no significant sinking and a large amount of bubbles, to reduce interior formwork, secondary vibration technique is preferably used,
Enter mould in concreting for the first time to vibrate, be carried out again before second layer concreting for the second time, top layer concrete generally exists
Secondary vibration is carried out after 0.5h；
(4) form removal and insulating layer: should be after concrete cooling extremely+5 DEG C, surface temperature of concrete and ring after demoulding
When border temperature difference is greater than 15 DEG C, covering curing is answered on surface, makes its Slow cooling；
(5) concrete curing: demoulding when test piece intensity of concrete under the conditions of same reaches 3MPa or 4MPa is answered after demoulding
, there is phenomena such as color difference, contraction fissure to reduce concrete surface, clear-water concrete often takes plastic covering film in maintenance in time
Or slow burning straw curtain and the method combined with sprinkling maintenance, it should all sprinkle water before demoulding and often in maintenance processes and keep wet, support
The shield time is no less than 7d, if being unable to sprinkling maintenance when winter construction, brushing curing agent and plastic film, slow burning straw curtain phase can be used
In conjunction with maintenance process, curing time is no less than 14d.
Compared with prior art, the present invention having the following advantages and benefits: the present invention can guarantee clear water coagulation
Soil is met the requirements after pouring, and the service life is longer for concrete.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment, the present invention is made
Further to be described in detail, exemplary embodiment of the invention and its explanation for explaining only the invention, are not intended as to this
The restriction of invention.
Embodiment:
The technique of pouring exposed concrete is used in construction, comprising the following steps:
(1) concrete stirs: concrete stirring will be by match ratio strict measurement, concrete strength grade C30；It uses
P.o42.5 grade composite silicate cement, select river sand, stone be 16~31.5mm rubble, weight ratio are as follows: water: cement: river sand:
Stone: additive=0.457: 1.000: 2.498: 3.747: 0.060, additive be FS-A waterproofing agent, the ratio of mud are as follows: 0.457:
1, every cube of concrete water dosage is 143kg, cement consumption 313kg, river sand dosage 782kg, stone dosage 1172kg, additive
For 18.8kg；
(2) concrete transportation: using pump conveying, concrete pump will be placed on solid ground, and when adapter tube, connector is necessary
It firmly installs, stablize, connector adds washer sealing；Pump concrete must assure that concrete pump energy continuous work, such as break down
Idle hours is more than that 10 minutes or concrete have occurred " isolating " phenomenon, should be rinsed in net pipe with pressure water or other methods immediately
Remaining concrete；
(3) concreting, vibrate: grasp concrete vibration time, with concrete surface present uniform cement slurry,
Until when emitting on there is no significant sinking and a large amount of bubbles, to reduce interior formwork, secondary vibration technique is preferably used,
Enter mould in concreting for the first time to vibrate, be carried out again before second layer concreting for the second time, top layer concrete generally exists
Secondary vibration is carried out after 0.5h；
(4) form removal and insulating layer: should be after concrete cooling extremely+5 DEG C, surface temperature of concrete and ring after demoulding
When border temperature difference is greater than 15 DEG C, covering curing is answered on surface, makes its Slow cooling；
(5) concrete curing: demoulding when test piece intensity of concrete under the conditions of same reaches 3MPa or 4MPa is answered after demoulding
, there is phenomena such as color difference, contraction fissure to reduce concrete surface, clear-water concrete often takes plastic covering film in maintenance in time
Or slow burning straw curtain and the method combined with sprinkling maintenance, it should all sprinkle water before demoulding and often in maintenance processes and keep wet, support
The shield time is no less than 7d, if being unable to sprinkling maintenance when winter construction, brushing curing agent and plastic film, slow burning straw curtain phase can be used
In conjunction with maintenance process, curing time is no less than 14d.
The present invention is met the requirements after capable of guaranteeing pouring exposed concrete, and the service life is longer for concrete.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (1)
1. using the technique of pouring exposed concrete in construction, which comprises the following steps:
(1) concrete stirs: concrete stirring will be by match ratio strict measurement, concrete strength grade C30；Use P.o42.5 grades
Composite Portland cement, selects river sand, and stone is 16~31.5mm rubble, weight ratio are as follows: water: cement: river sand: stone: additional
Agent=0.457: 1.000: 2.498: 3.747: 0.060, additive is FS-A waterproofing agent, the ratio of mud are as follows: 0.457: 1, every cube
Concrete water dosage is 143kg, cement consumption 313kg, river sand dosage 782kg, and stone dosage 1172kg, additive is
18.8kg；
(2) concrete transportation: using pump conveying, concrete pump will be placed on solid ground, and when adapter tube, connector must be installed
Securely, stablize, connector adds washer sealing；Pump concrete must assure that concrete pump energy continuous work, such as breaks down and rests
Time is more than that 10 minutes or concrete have occurred " isolating " phenomenon, should rinse residual in net pipe with pressure water or other methods immediately
Concrete；
(3) concreting, vibrate: grasp concrete vibration time, uniform cement slurry, no longer be presented with concrete surface
Have it is significant sink and a large amount of bubbles when being emitted on until, to reduce interior formwork, preferably use secondary vibration technique, first
It is secondary to enter mould in concreting and vibrate, it is carried out again before second layer concreting for second, top layer concrete is generally in 0.5h
After carry out secondary vibration；
(4) form removal and insulating layer: should be after concrete cooling extremely+5 DEG C, surface temperature of concrete and environment temperature after demoulding
When degree difference is greater than 15 DEG C, covering curing is answered on surface, makes its Slow cooling；
(5) concrete curing: demoulding when test piece intensity of concrete under the conditions of same reaches 3MPa or 4MPa, it should be timely after demoulding
, there is phenomena such as color difference, contraction fissure to reduce concrete surface, clear-water concrete often takes plastic covering film or resistance in maintenance
Combustion straw screen or mat and the method that combines with sprinkling maintenance should all sprinkle water before demoulding and often in maintenance processes and keep wet, when maintenance
Between no less than 7d brushing curing agent can be used and combined with plastic film, slow burning straw curtain if being unable to sprinkling maintenance when winter construction
Maintenance process, curing time is no less than 14d.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710743754.XA CN109424188A (en) | 2017-08-25 | 2017-08-25 | The technique of pouring exposed concrete is used in construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710743754.XA CN109424188A (en) | 2017-08-25 | 2017-08-25 | The technique of pouring exposed concrete is used in construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109424188A true CN109424188A (en) | 2019-03-05 |
Family
ID=65500557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710743754.XA Withdrawn CN109424188A (en) | 2017-08-25 | 2017-08-25 | The technique of pouring exposed concrete is used in construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109424188A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110091414A (en) * | 2019-04-10 | 2019-08-06 | 河南清水建设科技有限公司 | A kind of prefabricated assembled fair-faced concrete wallboard and manufacture craft |
| CN110820465A (en) * | 2019-11-22 | 2020-02-21 | 湖南华意项目管理有限公司 | Old concrete pavement pouring process |
| 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 |
-
2017
- 2017-08-25 CN CN201710743754.XA patent/CN109424188A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110091414A (en) * | 2019-04-10 | 2019-08-06 | 河南清水建设科技有限公司 | A kind of prefabricated assembled fair-faced concrete wallboard and manufacture craft |
| CN110820465A (en) * | 2019-11-22 | 2020-02-21 | 湖南华意项目管理有限公司 | Old concrete pavement pouring process |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190305 |