CN105235052A - Method for repairing defects of aerated concrete panel - Google Patents
Method for repairing defects of aerated concrete panel Download PDFInfo
- Publication number
- CN105235052A CN105235052A CN201510611111.0A CN201510611111A CN105235052A CN 105235052 A CN105235052 A CN 105235052A CN 201510611111 A CN201510611111 A CN 201510611111A CN 105235052 A CN105235052 A CN 105235052A
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- China
- Prior art keywords
- repairing
- framed
- repaired
- defect
- repair
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/29—Producing shaped prefabricated articles from the material by profiling or strickling the material in open moulds or on moulding surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/04—Producing shaped prefabricated articles from the material by tamping or ramming
- B28B1/045—Producing shaped prefabricated articles from the material by tamping or ramming combined with vibrating or jolting
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to the field of aerated concrete, in particular to a method for repairing defects of an aerated concrete panel. According to the method for repairing defects of the aerated concrete panel, a defective fraction surface area of the aerated concrete panel needing to be repaired is polished through abrasive paper, the aerated concrete panel needing to be repaired is placed horizontally, 108 glue is evenly smeared on a part needing to be repaired, and a repairing mold frame is placed at the bottom of the part needing to be repaired; water is added into a mixture of gypsum powder and cement during stirring, the material is poured into the repairing mold frame after being mixed evenly, demolding is conducted after the pouring is completed for 7-10 minutes, the 108 glue is smeared on the surface of the repaired position, a scraping plate is used for crushing debris of aerated concrete left in the polishing in the first step into powder, and the powder is evenly smeared on the surface where the 108 glue is smeared, so that the surface color of the repaired position is consistent with the surface color of unrepaired positions.
Description
Technical field
The present invention designs air entrained concrete field, specifically a kind of method of repairing air entrained concrete sheet material defect.
Background technology
Air entrained concrete sheet material is a kind of novel green wall material, and it is high that it has fire resistance rating, and sound-proofing is good, and speed of application is fast, the excellent feature of thermal and insulating performance, progressively starts alternative autoclave aerated concrete building block as building packing material.It also can be applicable to the exterior wall built.
Air-entrained concrete building block by reinforcing bar and slip through pouring into a mould, resting, cut, steam-cured four procedures are prepared from.Due to the coefficient of expansion of reinforcing bar and the expansion coefficient difference large (0.8 × 10-5m, 1.2 × 10-5m) of Aerated Concrete base substrate, cause sheet material in steam-cured process, internal stress causes micro-crack, and time serious, the crackle being greater than 1mm appears in surface.The large crackle on these micro-cracks and surface easily easily causes coming off of concrete base substrate in handling process.Once sheet material defect, slight can by defect Partial Resection, and remainder is sold; Monoblock sheet material seriously will be caused to discard.Containing reinforcing bar in sheet material, production cost is 400 yuan/side.Once cut or discard, cost allowance is serious.
Summary of the invention
Technical problem to be solved by this invention is: how to there being the air entrained concrete sheet material of defect to repair.
The technical solution adopted in the present invention is: a kind of method of repairing air entrained concrete sheet material defect, carries out according to following step:
Step one, use sand paper are polished needing the cross sectional area of the air entrained concrete sheet material defect of repairing, and ensure surface smoothing, without projection;
Step 2, the air entrained concrete sheet material horizontal positioned of being repaired by the needs processed through step one, need position uniform application 108 glue repaired, and will repair the framed bottom being placed on the position that needs are repaired;
Step 3, land plaster mass percent accounted for 60 ~ 80% land plaster and cement admixture stir in add water, the quality of water is the 50-60% of land plaster and cement admixture gross mass, after mixing, immediately material is poured into repair framed in and vibrate, rap repairing framed simultaneously, pore is discharged, keep material to exceed aerated concrete panel place and repair plane 1-2 centimetre, mixing of materials evenly after to pour into material and repair framed middle interlude and be no more than five minutes, vibrating completely scrapes off the material exceeding aerated concrete panel place and repair plane;
Step 4, be poured rear 7-10 minute after the demoulding, 108 glue are smeared at patched surface of position, and wear into broken last uniform application to the surface of smearing 108 glue with the air entrained concrete fragment that material scraping plate stays polishing in step one, make the color of patched surface of position and not patched surface of position solid colour.
As a kind of preferred embodiment: the repairing in step 2 is framed comprises angle mould frame that three pieces of planks make and the rib that two pieces of planks make is framed, and angle mould frame is for repairing bight defect, and rib is framed for repairing seamed edge defect.
The invention has the beneficial effects as follows: this patent achieves the timely repairing of the apparent defect of air entrained concrete sheet material, improves the qualification rate of sheet material, decreases the rejection number of sheet material, greatly the economic benefit of enterprise.
Accompanying drawing explanation
Fig. 1 is that the present invention repairs bight defect schematic diagram;
Fig. 2 is that the present invention repairs seamed edge defect schematic diagram;
Fig. 3 is angle mould mount structure schematic diagram;
Fig. 4 is rib mold frame structure schematic diagram;
Wherein, 1, need the air entrained concrete sheet material repaired, 2, repair framed, 3, the cross sectional area of defect.
Detailed description of the invention
Embodiment 1
As shown in Figure 1, the cross sectional area needing the defect of repairing is bight defect, and need previously prepared angle mould frame, angle mould frame as shown in Figure 3.
Cleaning damaged area; Use sand paper to be polished in advance the cross sectional area of defect, ensure surface smoothing, without projection.
Preparation before repairing, using an armful car sheet material to be placed on height is 10mm, and length is 600mm, and width is that on two pieces of planks of 200mm, the spacing of two planks is placed according to the length of sheet material.As above the position (bight) that framed (angle mould frame angle) is placed on defect will be repaired by Fig. 1.
Preparation material for repairing; Building gypsum plaster: 425 cement; Two kinds of raw materials are according to land plaster 70%(mass percent): 425 cement 30%(mass percents) ratio manually carry out rapid stirring, mixing time 1min, add water as 55% of dry material gross weight, stir 30s.Repair immediately.Must be complete by defect repairing in 5min, each preparation material can only use instantly.
The performance requirement of building gypsum plaster is: presetting period 4-8min, final setting time at 10-16min, rupture strength at 2.0MPa, compression strength 4.0MPa.Presetting period often reduces 1min, and the addition of cement reduces 5 ~ 10% by 40%, and the minimum addition content of cement must not be less than 20%.
By polishing, the air entrained concrete fragment stayed wears into broken end, also by discarded air-entrained concrete building block or air entrained concrete sheet material end portion, fragmentation can be carried out, wears into broken end, require that fineness is at the screen over-size of 10-15%(0.08mm square hole), for the adjustment of material for repairing color.
Repair: on defect section, uniform application 108 glue.The material be stirred is poured into fast and repairs in framed (angle mould frame), rap framed simultaneously, pore is discharged.Material should exceed framed 2cm, uses the iron staff that diameter is 10mm to vibrate 15 times, slip is filled closely knit.Vibrate complete, with material scraping plate, unnecessary for top layer material is struck off.
Be poured the rear 10min demoulding, at surface smear 108 glue of material for repairing after the demoulding, and with material scraping plate by air entrained concrete crushed material uniform application extremely surface, make the color of material for repairing consistent with sheet material intrinsic colour.
Sheet material after repairing can entrucking roping after being positioned over outdoor 24 hours.Prevent from being moistened by rain in 24 hours.
Embodiment 2
As shown in Figure 2, the cross sectional area needing the defect of repairing is rib portion defect, and need previously prepared rib framed, rib is as shown in Figure 4 framed.
Cleaning damaged area; Use sand paper to be polished in advance the cross sectional area of defect, ensure surface smoothing, without projection.
Preparation before repairing, using an armful car sheet material to be placed on height is 10mm, and length is 600mm, and width is that on two pieces of planks of 200mm, the spacing of two planks is placed according to the length of sheet material.As above the position (bight) that framed (the framed angle of rib) is placed on defect will be repaired by Fig. 2.
Preparation material for repairing; Building gypsum plaster: 425 cement; Two kinds of raw materials are according to land plaster 75%(mass percent): 425 cement 25%(mass percents) ratio manually carry out rapid stirring, mixing time 1min, add water as 58% of dry material gross weight, stir 30s.Repair immediately.Must be complete by defect repairing in 5min, each preparation material can only use instantly.
The performance requirement of building gypsum plaster is: presetting period 4-8min, final setting time at 10-16min, rupture strength at 2.0MPa, compression strength 4.0MPa.Presetting period often reduces 1min, and the addition of cement reduces 5 ~ 10% by 40%, and the minimum addition content of cement must not be less than 20%.
By polishing, the air entrained concrete fragment stayed wears into broken end, also by discarded air-entrained concrete building block or air entrained concrete sheet material end portion, fragmentation can be carried out, wears into broken end, require that fineness is at the screen over-size of 10-15%(0.08mm square hole), for the adjustment of material for repairing color.
Repair: on defect section, uniform application 108 glue.The material be stirred is poured into fast and repairs in framed (rib is framed), rap framed simultaneously, pore is discharged.Material should exceed framed 2cm, uses the iron staff that diameter is 10mm to vibrate 15 times, slip is filled closely knit.Vibrate complete, with material scraping plate, unnecessary for top layer material is struck off.
Be poured the rear 10min demoulding, at surface smear 108 glue of material for repairing after the demoulding, and with material scraping plate by air entrained concrete crushed material uniform application extremely surface, make the color of material for repairing consistent with sheet material intrinsic colour.
Sheet material after repairing can entrucking roping after being positioned over outdoor 24 hours.Prevent from being moistened by rain in 24 hours.
Claims (2)
1. repair a method for air entrained concrete sheet material defect, it is characterized in that carrying out according to following step:
Step one, use sand paper are polished needing the cross sectional area of the air entrained concrete sheet material defect of repairing, and ensure surface smoothing, without projection;
Step 2, the air entrained concrete sheet material horizontal positioned of being repaired by the needs processed through step one, need position uniform application 108 glue repaired, and will repair the framed bottom being placed on the position that needs are repaired;
Step 3, land plaster mass percent accounted for 60 ~ 80% land plaster and cement admixture stir in add water, the quality of water is the 50-60% of land plaster and cement admixture gross mass, after mixing, immediately material is poured into repair framed in and vibrate, rap repairing framed simultaneously, pore is discharged, keep material to exceed aerated concrete panel place and repair plane 1-2 centimetre, mixing of materials evenly after to pour into material and repair framed middle interlude and be no more than five minutes, vibrating completely scrapes off the material exceeding aerated concrete panel place and repair plane;
Step 4, be poured rear 7-10 minute after the demoulding, 108 glue are smeared at patched surface of position, and wear into broken last uniform application to the surface of smearing 108 glue with the air entrained concrete fragment that material scraping plate stays polishing in step one, make the color of patched surface of position and not patched surface of position solid colour.
2. a kind of method of repairing air entrained concrete sheet material defect according to claim 1, it is characterized in that: the repairing in step 2 is framed comprises angle mould frame that three pieces of planks make and the rib that two pieces of planks make is framed, angle mould frame is for repairing bight defect, and the framed rigging angle clamp of rib is framed for repairing seamed edge defect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510611111.0A CN105235052B (en) | 2015-09-24 | 2015-09-24 | A kind of method for repairing air entrained concrete sheet material defect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510611111.0A CN105235052B (en) | 2015-09-24 | 2015-09-24 | A kind of method for repairing air entrained concrete sheet material defect |
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| CN105235052A true CN105235052A (en) | 2016-01-13 |
| CN105235052B CN105235052B (en) | 2017-12-01 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105859234A (en) * | 2016-03-30 | 2016-08-17 | 四川华西绿舍建材有限公司 | Rapid repair mortar and repair process special for autoclaved aerated concrete slab |
| CN112248198A (en) * | 2020-09-28 | 2021-01-22 | 吴秋敏 | Aerated concrete block forming treatment system |
| CN113336512A (en) * | 2021-06-18 | 2021-09-03 | 太原钢铁(集团)有限公司 | Gypsum-based anti-cracking mortar for aerated concrete slabs and preparation method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04325478A (en) * | 1991-04-24 | 1992-11-13 | Asahi Chem Ind Co Ltd | Method for coating aerated lightweight concrete |
| JPH05319876A (en) * | 1992-05-22 | 1993-12-03 | Asahi Chem Ind Co Ltd | Method for recycling aerated lightweight concrete and material for recycle |
| CN101913819A (en) * | 2010-09-21 | 2010-12-15 | 夏凤君 | Anti-leakage repair-enhanced building coating |
| CN201695548U (en) * | 2010-06-30 | 2011-01-05 | 中国京冶工程技术有限公司 | Large steam lightweight aerated concrete panel |
| CN102535733A (en) * | 2012-01-16 | 2012-07-04 | 上海富春建业科技股份有限公司 | Method for repairing autoclaved aerated concrete defected sheet material |
| CN103590619A (en) * | 2013-11-29 | 2014-02-19 | 天津住宅集团建设工程总承包有限公司 | Construction method for repairing old brick wall |
| CN103951340A (en) * | 2014-04-11 | 2014-07-30 | 天津天筑建材有限公司 | Repair mortar specially used for low-density autoclaved aerated concrete slabs |
| CN104926258A (en) * | 2015-06-26 | 2015-09-23 | 山东天玉墙体材料有限公司 | Autoclaved aerated concrete plate repairing agent |
-
2015
- 2015-09-24 CN CN201510611111.0A patent/CN105235052B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04325478A (en) * | 1991-04-24 | 1992-11-13 | Asahi Chem Ind Co Ltd | Method for coating aerated lightweight concrete |
| JPH05319876A (en) * | 1992-05-22 | 1993-12-03 | Asahi Chem Ind Co Ltd | Method for recycling aerated lightweight concrete and material for recycle |
| CN201695548U (en) * | 2010-06-30 | 2011-01-05 | 中国京冶工程技术有限公司 | Large steam lightweight aerated concrete panel |
| CN101913819A (en) * | 2010-09-21 | 2010-12-15 | 夏凤君 | Anti-leakage repair-enhanced building coating |
| CN102535733A (en) * | 2012-01-16 | 2012-07-04 | 上海富春建业科技股份有限公司 | Method for repairing autoclaved aerated concrete defected sheet material |
| CN103590619A (en) * | 2013-11-29 | 2014-02-19 | 天津住宅集团建设工程总承包有限公司 | Construction method for repairing old brick wall |
| CN103951340A (en) * | 2014-04-11 | 2014-07-30 | 天津天筑建材有限公司 | Repair mortar specially used for low-density autoclaved aerated concrete slabs |
| CN104926258A (en) * | 2015-06-26 | 2015-09-23 | 山东天玉墙体材料有限公司 | Autoclaved aerated concrete plate repairing agent |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105859234A (en) * | 2016-03-30 | 2016-08-17 | 四川华西绿舍建材有限公司 | Rapid repair mortar and repair process special for autoclaved aerated concrete slab |
| CN112248198A (en) * | 2020-09-28 | 2021-01-22 | 吴秋敏 | Aerated concrete block forming treatment system |
| CN113336512A (en) * | 2021-06-18 | 2021-09-03 | 太原钢铁(集团)有限公司 | Gypsum-based anti-cracking mortar for aerated concrete slabs and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105235052B (en) | 2017-12-01 |
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