CN102587527A - Steel column-coated fire-protection construction method - Google Patents
Steel column-coated fire-protection construction method Download PDFInfo
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- CN102587527A CN102587527A CN2012100667618A CN201210066761A CN102587527A CN 102587527 A CN102587527 A CN 102587527A CN 2012100667618 A CN2012100667618 A CN 2012100667618A CN 201210066761 A CN201210066761 A CN 201210066761A CN 102587527 A CN102587527 A CN 102587527A
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Abstract
The invention relates to a steel column-coated fire-protection construction method which comprises the following steps: cutting machining aerated concrete building blocks; stirring a binder; scraping and leveling by using a sawtooth-shaped scraper to uniformly smear the binder; when pasting the finished-product building blocks, firstly cleaning floating ash on the surface of steel posts and the binding surfaces of the building blocks by using a brush without watering humidification; pasting the finished-product building blocks by using a special tool; plastering the binder on the building blocks by using a plastering trowel, coating uniformly, then pasting the building blocks on the surface of the steel posts, and compacting, wherein horizontal mortar joints and vertical mortar joints are all flush with the surfaces of the steel posts; performing thin-layer masonry pasting on the building blocks by using a tool; and performing staggered overlapping pasting on the building blocks in the corners of the steel posts, wherein the pasted building blocks cannot be arbitrarily moved; and the surface of the coated steel posts are flat so that putty only need to be scraped during decoration. By adoption the steel column-coated fire-protection construction method of the invention, the construction method is convenient, the material price is cheap, the fire protection is good and secondary decoration is not needed, and the steel column has the properties such as heat preservation, heat insulation, noise insulation, decoration and the like at the same time.
Description
Technical field
The invention belongs to constructional materials and the realm of building construction, particularly a kind of fire prevention job practices that adopts steel column to coat.
Background technology
At present, in the steel building, traditional fire prevention measure mainly is the spray fireproof paint and hangs aerating sheet material etc.The spray fireproof paint needs special construction facility and personnel, and coating price is expensive, and coating needs just can meet the requirements of fire-protection rating through spraying repeatedly, and the uniformity of coating layer thickness is difficult to guarantee.Fireproof paint is a chemical substance on the other hand, about 15 years, can not guarantee with the application life of building 50 years application life.And in the later stage finishing, also need operations such as mesh plaster, cause the secondary of dope layer to destroy easily, time-consuming.Hang aerating sheet material, need on steel column, to make keel earlier, again the aerating plate is passed through screw on keel.The method has increased steel using amount, and cost is higher, and planeness and the after-treatment of seam crossing need.Simultaneously, have cavity between steel column and the aerating plate, defening effect is poor, and in use has the cold bridge problem.
In view of this, seek a kind of novel fire prevention job practices and become pursuing one's goal of these those skilled in the art.
Summary of the invention
Task of the present invention provides the fire prevention job practices that a kind of steel column coats, and it has overcome above-mentioned existing in prior technology problem, and its job practices is convenient; Material price is cheap; Fireproof performance is good, need not secondary decoration, has performances such as insulation, heat insulation, sound insulation, finishing concurrently.
Technical solution of the present invention is following:
The fire prevention job practices that a kind of steel column coats, adopt following steps:
The cutting processing air-entrained concrete building block: this finished product building block is cut into required specification on request, and dried coefficient of thermal conductivity is 0.09-0.20w/ (m under the normal temperature
2K), dry density is 400-700kg/m
3, the finished product block thickness is selected 10mm-100mm;
Mix the system cementing agent: cementing agent is the dry powder that mixes with cement, sand, polymer Admixture, adds water during use on request and stirs, the slurry that formation can be constructed;
Adopt the zigzag scraper to criticize and scrape, cementing agent is smeared evenly;
When the finished product building block is pasted, clean the floating ash on steel column surface and the building block adhesive surface with water with brush earlier, humidification must not water;
Use special tool to paste the finished product building block, the mortar system of mixing uses mortar mixer to stir, and adds the 20%-25% water purification by dry powder weight and mixes and process the clay shape, and each mortar that stirs generally used up in 1-2 hour; The hardening if lumpd in the mortar surface then should be forbidden continuing to use; Surpassing 30 minutes must stir once again;
With batch cutter cementing agent is criticized in building block, is smeared evenly, paste then on the steel column surface, compacting, horizontal mortar joint and vertical mortar joint all with the steel column flush;
Building block is answered tool using to carry out thin layer and is built stickup by laying bricks or stones, and thin layer is built vertical mortar joint and the horizontal mortar joint of stickup by laying bricks or stones all less than 20mm; Slurry is layered on the block surfaces equably, and vertical mortar joint can be spread earlier and be bonded at block end faces, touches building block with rubber hammer behind the last wall; Mortar is extruded from mortar joint; Mortar joint must not have the space, and full degree of mortar at bed joint is not less than 90%, and wants in time the mortar of extruding to be removed clean; The building block of steel column corner should interlock to overlap and paste;
The building block that pastes should not moved arbitrarily, and the not solidified building block of mortar must not be impacted, if need to proofread and correct or transfer to scraping off original mortar and spread again and execute, accomplishes every batch and builds by laying bricks or stones and will in time proofread and correct with level gauge, and deviate is controlled in the allowed band;
Coat good steel column surfacing, finishing only needs batch Puttying to get final product.
Said air-entrained concrete building block is the lightweight sheet material, is raw material with cement, sand, through batching, stirring, precuring, cutting, and maintenance 10-12 hour and the fine and closely woven cellular lightweight aerated concrete goods processed under HTHP.
Said finished product block thickness is selected for use greater than 30mm, and by this sheet material coating structure, the anti-fire of steel column reaches 3 hours.
The present invention makes it compared with prior art owing to adopted above technical scheme, the fire prevention job practices that adopts steel column of the present invention to coat; Job practices is convenient, and material price is cheap, and fireproof performance is good; Need not secondary decoration, have performances such as insulation, heat insulation, sound insulation, finishing concurrently.
Sheet material among the present invention can not influence its functional performance with the size cutting arbitrarily of steel column size, convenient and quick construction, and appearance surfaces is smooth.Aerating sheet material thermal conductivity is low, unit weight is light, defening effect good, and itself composition material is an inorganic material, so fire-resistant effective, heatproof can reach about 1000 ℃, under corresponding conditions, satisfies different fire prevention class requirements.
Adhesive special among the present invention is a mineral-type powdered material, adds suitable quantity of water during use on request and stirs and get final product.The adhesive special material price is cheap, easy construction, and once to stir the up time be about 2 hours.The adhesion strength of adhesive special is high; Fire-resistant water resistance is good, forms fine and close screed once pasting the back with the steel column surface, can not occur becoming flexible, comes off, phenomenon such as cracking; Long service life; And need not again operations such as mesh plaster after adopting adhesive special to paste, improved speed of application, reduced cost.
Description of drawings
Fig. 1 is the steel column clad structure sketch map by job practices of the present invention.
Reference numeral:
1 is steel column, and 2 is cementing agent, and 3 is air-entrained concrete building block or aerating sheet material.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is elaborated.
The invention provides the fire prevention job practices that a kind of steel column coats, as shown in Figure 1, cementing agent 2 is smeared in steel column 1 outside, pastes air-entrained concrete building block or aerating sheet material 3 then.
Fire prevention job practices by a kind of steel column of the present invention coats, adopt following steps:
The cutting processing air-entrained concrete building block: this finished product building block is cut into required specification on request, and dried coefficient of thermal conductivity is 0.09-0.20w/ (m under the normal temperature
2K), dry density is 400-700kg/m
3, the finished product block thickness is selected 10mm-100mm.In general, the finished product block thickness is selected for use greater than 30mm, and by this sheet material coating structure, the anti-fire of steel column can reach 3 hours.
Said air-entrained concrete building block is the lightweight sheet material, is raw material with cement, sand etc., through batching, stirring, precuring, cutting, and maintenance 10-12 hour and the fine and closely woven cellular lightweight aerated concrete goods processed under HTHP.
Mix the system cementing agent: cementing agent is the dry powder that mixes with cement, sand, polymer Admixture, adds water during use on request and stirs, the slurry that formation can be constructed.
Adopt the zigzag scraper to criticize and scrape, cementing agent is smeared evenly.
When the finished product building block is pasted, clean the floating ash on steel column surface and the building block adhesive surface with water with brush earlier, humidification must not water.
Tool using is pasted the finished product building block, and the mortar system of mixing uses mortar mixer to stir, and adds the 20%-25% water purification by dry powder weight and mixes and process the clay shape, and each mortar that stirs generally used up in 1-2 hour.The hardening if lumpd in the mortar surface then should be forbidden continuing to use.Surpassing 30 minutes must stir once again.
With batch cutter cementing agent is criticized in building block, is smeared evenly, paste then on the steel column surface, compacting, horizontal mortar joint and vertical mortar joint all with the steel column flush.
Building block should use special tool to paste, and the vertical mortar joint of stickup and horizontal mortar joint are all less than 20mm.Slurry is layered on the block surfaces equably, and vertical mortar joint can be spread earlier and be bonded at block end faces, touches building block with rubber hammer behind the last wall; Mortar is extruded from mortar joint; Mortar joint must not have the space, and full degree of mortar at bed joint is not less than 90%, and wants in time the mortar of extruding to be removed clean.The building block of steel column corner should interlock to overlap and paste.
The building block that pastes should not moved arbitrarily, and the not solidified building block of mortar must not be impacted, if need to proofread and correct or transfer to scraping off original mortar and spread again and execute, accomplishes every batch and builds by laying bricks or stones and will in time proofread and correct with level gauge, and deviate is controlled in the allowed band.
Coat good steel column surfacing, finishing only needs batch Puttying to get final product.
The present invention is in practical application; The lightweight sheet material that adopts is an air-entrained concrete building block; With cement, sand etc. is raw material, through batching, stirring, precuring, cutting, and maintenance 10-12 hour and the fine and closely woven cellular lightweight aerated concrete goods processed under HTHP.Material itself has good insulated fire heat-proof quality, can not influence its functional performance with the size cutting arbitrarily of steel column size.
Adhesive special among the present invention is the dry powder that forms with material mixing such as cement, sand, polymer Admixtures, has performances such as adhesion stress height, water-fast, heatproof, freeze-thawing resistant.During use on request amount of water add water and stir into the slurry that can construct, the up time is about 1-2 hour.
Concrete job practices of the present invention is following:
1, air-entrained concrete building block: the finished product building block is cut into required size on request, and the performance of its material itself is constant.Dried coefficient of thermal conductivity is 0.09-0.20w/ (m under the normal temperature
2K), dry density is 400-700kg/m
3, the finished product block thickness is selected 10mm-100mm.In general, the finished product block thickness is selected for use greater than 30mm, and by this sheet material coating structure, the anti-fire of steel column can reach 3 hours.
2, adhesive special: each component material is mixed in batch mixer can the blanking packing.Add water during use on request and stir, adopt special-purpose zigzag scraper to criticize and scrape, can make cementing agent smear evenly economical with materials.
When 3, aerated-block is pasted, should clean the floating ash on steel column surface and the building block adhesive surface with water with brush earlier, humidification must not water.
To use special tool when 4, pasting; The mortar system of mixing should use mortar mixer to stir; Adding the 20%-25% water purification by dry powder weight mixes and processes the clay shape; Each mortar that stirs used up (the concrete time is relevant with the climatic environment of job site) in 1-2 hour, like the hardening of having lumpd of mortar surface, then should forbid continuing use.Surpassing 30 minutes must stir once again.
5, building block should be used special tool to carry out thin layer and build stickup by laying bricks or stones, and its vertical mortar joint and horizontal mortar joint are all less than 20mm.Slurry is layered on the block surfaces equably, and vertical mortar joint can be spread earlier and be bonded at block end faces, touches building block with rubber hammer behind the last wall; Mortar can be extruded from mortar joint; Mortar joint must not have the space, and full degree of mortar at bed joint is not less than 90%, and wants in time the mortar of extruding to be removed clean.Steel column corner sheet material should interlock to overlap and paste.
6, the building block that pastes should not moved arbitrarily, and the not solidified building block of mortar must not be impacted, if need to proofread and correct or transfer to scraping off original mortar and spread again and execute, accomplishes every batch and builds by laying bricks or stones and will use horizontal guiding ruler in time to proofread and correct, and deviate is controlled in the allowed band.
7, coat good steel column, surfacing, attractive in appearance, flameproof effect is good, and finishing only needs batch Puttying to get final product.
In sum, the fire prevention job practices that adopts steel column of the present invention to coat, job practices is convenient, and material price is cheap, and fireproof performance is good, need not secondary decoration, has performances such as insulation, heat insulation, sound insulation, finishing concurrently.
Certainly; Those skilled in the art in the present technique field will be appreciated that; The foregoing description only is to be used for explaining the present invention; And be not with opposing qualification of the present invention, as long as in connotation scope of the present invention, all will drop in the scope of claim of the present invention the variation of the foregoing description, modification etc.
Claims (3)
1. the fire prevention job practices that coats of a steel column is characterized in that: adopt following steps:
The cutting processing air-entrained concrete building block: this finished product building block is cut into required specification on request, and dried coefficient of thermal conductivity is 0.09-0.20w/ (m under the normal temperature
2K), dry density is 400-700kg/m
3, the finished product block thickness is selected 10mm-100mm;
Mix the system cementing agent: cementing agent is the dry powder that mixes with cement, sand, polymer Admixture, adds water during use on request and stirs, the slurry that formation can be constructed;
Adopt the zigzag scraper to criticize and scrape, cementing agent is smeared evenly;
When the finished product building block is pasted, clean the floating ash on steel column surface and the building block adhesive surface with water with brush earlier, humidification must not water;
Use special tool to paste the finished product building block, the mortar system of mixing uses mortar mixer to stir, and adds the 20%-25% water purification by dry powder weight and mixes and process the clay shape, and each mortar that stirs generally used up in 1-2 hour; The hardening if lumpd in the mortar surface then should be forbidden continuing to use; Surpassing 30 minutes must stir once again;
With batch cutter cementing agent is criticized in building block, is smeared evenly, paste then on the steel column surface, compacting, horizontal mortar joint and vertical mortar joint all with the steel column flush;
Building block is answered tool using to carry out thin layer and is built stickup by laying bricks or stones, and thin layer is built vertical mortar joint and the horizontal mortar joint of stickup by laying bricks or stones all less than 20mm; Slurry is layered on the block surfaces equably, and vertical mortar joint can be spread earlier and be bonded at block end faces, touches building block with rubber hammer behind the last wall; Mortar is extruded from mortar joint; Mortar joint must not have the space, and full degree of mortar at bed joint is not less than 90%, and wants in time the mortar of extruding to be removed clean; The building block overlap joint that should interlock in steel column corner is pasted during sticking construction;
The building block that pastes should not moved arbitrarily, and the not solidified building block of mortar must not be impacted, if need to proofread and correct or transfer to scraping off original mortar and spread again and execute, accomplishes every batch and builds by laying bricks or stones and will in time proofread and correct with level gauge, and deviate is controlled in the allowed band;
Coat good steel column surfacing, finishing only needs batch Puttying to get final product.
2. the fire prevention job practices that steel column according to claim 1 coats; It is characterized in that: said air-entrained concrete building block is the lightweight sheet material; With cement, sand is raw material; Through batching, stirring, precuring, cutting, maintenance 10-12 hour and the fine and closely woven cellular lightweight aerated concrete goods processed under HTHP.
3. the fire prevention job practices that steel column according to claim 1 coats, it is characterized in that: said finished product block thickness is selected for use greater than 30mm, and by this sheet material coating structure, the anti-fire of steel column reaches 3 hours.
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| CN2012100667618A CN102587527A (en) | 2012-03-14 | 2012-03-14 | Steel column-coated fire-protection construction method |
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| CN2012100667618A CN102587527A (en) | 2012-03-14 | 2012-03-14 | Steel column-coated fire-protection construction method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485445A (en) * | 2013-09-23 | 2014-01-01 | 云南建工水利水电建设有限公司 | Connecting method and device for aerated concrete block and steel column |
| CN103669730A (en) * | 2013-12-24 | 2014-03-26 | 北京振利节能环保科技股份有限公司 | Lightweight concrete-filled steel tube composite column for steel structure building and construction method |
| CN104763065A (en) * | 2015-04-16 | 2015-07-08 | 江苏省建筑设计研究院有限公司 | Construction method for prefabricated thick-type fire retardant coating |
| CN105113651A (en) * | 2015-06-24 | 2015-12-02 | 浙江东南网架股份有限公司 | Steel column protection structure and mortar plastering protection method thereof |
| CN105888089A (en) * | 2016-05-31 | 2016-08-24 | 安徽富煌建筑设计研究有限公司 | Steel column cladding joint in steel structure house building |
| CN107119853A (en) * | 2017-06-29 | 2017-09-01 | 高志斌 | The FRP Columns that a kind of use concrete segment group is built |
| CN112593664A (en) * | 2020-12-02 | 2021-04-02 | 广汉德开住工建材有限公司 | Beam-wrapped and column-wrapped corrugated net and mounting method thereof |
| CN113638546A (en) * | 2021-09-02 | 2021-11-12 | 上海建工四建集团有限公司 | Construction method for wrapping box steel column with autoclaved aerated concrete slab |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485445A (en) * | 2013-09-23 | 2014-01-01 | 云南建工水利水电建设有限公司 | Connecting method and device for aerated concrete block and steel column |
| CN103485445B (en) * | 2013-09-23 | 2014-10-08 | 云南建工水利水电建设有限公司 | Connecting method and device for aerated concrete block and steel column |
| CN103669730A (en) * | 2013-12-24 | 2014-03-26 | 北京振利节能环保科技股份有限公司 | Lightweight concrete-filled steel tube composite column for steel structure building and construction method |
| CN103669730B (en) * | 2013-12-24 | 2015-10-07 | 北京振利节能环保科技股份有限公司 | A kind of lightweight steel tube concrete superposed column for steel building and construction method |
| CN104763065A (en) * | 2015-04-16 | 2015-07-08 | 江苏省建筑设计研究院有限公司 | Construction method for prefabricated thick-type fire retardant coating |
| CN105113651A (en) * | 2015-06-24 | 2015-12-02 | 浙江东南网架股份有限公司 | Steel column protection structure and mortar plastering protection method thereof |
| CN105888089A (en) * | 2016-05-31 | 2016-08-24 | 安徽富煌建筑设计研究有限公司 | Steel column cladding joint in steel structure house building |
| CN107119853A (en) * | 2017-06-29 | 2017-09-01 | 高志斌 | The FRP Columns that a kind of use concrete segment group is built |
| CN112593664A (en) * | 2020-12-02 | 2021-04-02 | 广汉德开住工建材有限公司 | Beam-wrapped and column-wrapped corrugated net and mounting method thereof |
| CN112593664B (en) * | 2020-12-02 | 2023-06-20 | 云南浩如环保科技有限公司 | Bag Liang Baozhu wave-shaped net and installation method thereof |
| CN113638546A (en) * | 2021-09-02 | 2021-11-12 | 上海建工四建集团有限公司 | Construction method for wrapping box steel column with autoclaved aerated concrete slab |
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Application publication date: 20120718 |