CN110185274A - The restorative procedure that existing building exterior wall true stone paint falls off - Google Patents

The restorative procedure that existing building exterior wall true stone paint falls off Download PDF

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Publication number
CN110185274A
CN110185274A CN201910316556.4A CN201910316556A CN110185274A CN 110185274 A CN110185274 A CN 110185274A CN 201910316556 A CN201910316556 A CN 201910316556A CN 110185274 A CN110185274 A CN 110185274A
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CN
China
Prior art keywords
lacquer
existing building
restorative procedure
base
falls
Prior art date
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.)
Pending
Application number
CN201910316556.4A
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Chinese (zh)
Inventor
连珍
王利雄
刘少瑜
陈永泉
李芬
浦聿聪
刘淳
张斌
周漪芳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Building Decoration Engineering Group Co Ltd
Original Assignee
Shanghai Building Decoration Engineering Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Building Decoration Engineering Group Co Ltd filed Critical Shanghai Building Decoration Engineering Group Co Ltd
Priority to CN201910316556.4A priority Critical patent/CN110185274A/en
Publication of CN110185274A publication Critical patent/CN110185274A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00Coverings or linings, e.g. for walls or ceilings
    • E04F13/02Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00Working measures on existing buildings
    • E04G23/02Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00Working measures on existing buildings
    • E04G23/02Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0203Arrangements for filling cracks or cavities in building constructions
    • E04G23/0211Arrangements for filling cracks or cavities in building constructions using injection
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00Working measures on existing buildings
    • E04G23/02Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0296Repairing or restoring facades

Abstract

The restorative procedure that existing building exterior wall true stone paint of the invention falls off, is related to technical field of building construction.For the problem that existing restorative procedure be difficult to ensure exterior wall true stone paint fall off position judgement accuracy and repairing quality, affect the service life of existing building exterior wall.Steps are as follows: using the thermal defects of infrared thermal imaging technique detection existing building exterior wall, judge between mortar base and base course wall with the presence or absence of bonding defect, to lock abnormal area, and abnormal area is carried out to tap detection and pull-out test, determine position, area and degree that lacquer falls off;Corresponding recovery scenario is determined according to the lacquer location detection result that falls off, and the lacquer of the existing building exterior wall position that falls off is repaired.

Description

The restorative procedure that existing building exterior wall true stone paint falls off
Technical field
The present invention relates to technical field of building construction, in particular to a kind of reparation side that existing building exterior wall true stone paint falls off Method.
Background technique
Lacquer is the coating that a kind of decorative effect exactly likes marble, granite, the main natural stone for using various colors Powder is formulated, it largely applies to decorating outer wall of building, therefore, is fallen off the skill repaired to existing building exterior wall true stone paint Art is that have great economy and realistic meaning.
Currently, existing building exterior wall true stone paint is caused to fall off main following several respects: construction factor, raw material factor, gas It waits, pollution factor, there are the reparations that hollowing etc., existing existing building exterior wall true stone paint fall off between insulating layer and base course wall Method is to judge that exterior wall true stone paint falls off position by perception inspection, and be layered and repaired with cement mortar again, still, the reparation Method be difficult to ensure lacquer fall off position judgement accuracy and repairing quality, affect existing building exterior wall use the longevity Life.
Summary of the invention
For existing restorative procedure be difficult to ensure exterior wall true stone paint fall off position judgement accuracy and repairing quality, influence It the problem of service life of existing building exterior wall, falls off the object of the present invention is to provide a kind of existing building exterior wall true stone paint Restorative procedure can targetedly repair the undesirable position of bond quality, improve lacquer and fall off portion The accuracy of position judgement, and repairing quality is improved by targeted recovery scenario.
The technical solution adopted by the present invention to solve the technical problems is: the reparation side that existing building exterior wall true stone paint falls off Method, steps are as follows:
S1: using the thermal defects of infrared thermal imaging technique detection existing building exterior wall, judge mortar base and base's wall It whether there is bonding defect between body, to lock abnormal area, and abnormal area carried out to tap detection and pull-out test, really Determine position, area and degree that lacquer falls off;
S2: corresponding recovery scenario is determined according to the lacquer of the step S1 location detection result that falls off, is built to existing It is repaired at the lacquer position that falls off for building exterior wall.
Preferably, the testing result of the step S1 is that mortar base hollowing area reaches 2m2More than, the step S2 is such as Under:
It makes marks along mortar base hollowing adjacent margins, is cut further along label, by the mortar of hollowing after cutting Base rejects, and clears up the floating ash on base course wall surface;
Cement mortar layering painting is added in institute using base course wall surface described in batch embedding interfacial agents brushing, then by adhesive Base course wall is stated up to its surfacing, carries out layering repairing with cement mortar again, after cement mortar solidification, maintenance, spray Apply lacquer surface layer.
Preferably, there is hollowing for mortar base in the testing result of the step S1 but its surface is not cracked, and the sand The hollowing area for starching base is not more than 2m2, the step S2 is as follows:
It makes marks along mortar base hollowing adjacent margins and drills out hole, inject bi-component epoxide-resin glue after borehole cleaning, And anchor studs are implanted into, after cure at the beginning of bi-component epoxide-resin glue, hole jointing is sealed with jointing agent.
Preferably, anchor studs are laid by horizontal, vertical direction interval, the number of the anchor studs in every square metre of reparation metope Amount no less than 4.
Preferably, space D≤300mm that the anchor studs arrangement is laid, effective anchorage depth of each anchor studs Not less than 25mm.
Preferably, the two neighboring anchor studs interval setting in same row or same row, adjacent row or adjacent column The anchor studs are staggered.
Preferably, when the testing result of the step S1 is that cracking of wall surface width is more than 1mm, along the fracture strike junction of the edges of two sheets of paper V-groove is dug out, groove depth extends to base course wall upper surface, and the V-groove depth ratio is more than or equal to 2: 1, then, clearly The V-groove is managed, brushing interface treating agent simultaneously fills caulking material, scrapes flexible repairing clay on caulking material surface batch, most Lacquer surface layer is sprayed afterwards.
Preferably, it scrapes for described flexible 2~3 times batches, repairing clay point, each batch is scraped thickness no more than 2mm.
Preferably, the step of spraying lacquer surface layer is as follows:
S201: inspection cleaning is carried out to mortar base, sprays alkali-resistant sealing primer;
S202: spraying lacquer surface layer, spray bucket is perpendicular to exterior wall surface when spraying, and when spraying is made an arc with fish scale or horizontal line is straight Spray;
S203: finishing lacquer surface layer;
S204: aqueous finish is sprayed.
Preferably, in the step S202, when spraying the lacquer surface layer, toning template construction is first carried out, is first adjusted Color sample selects a region to carry out with existing building metope colour contrast after sample is close with original color, then on existing building Template construction, same curing condition and under the time, it is ensured that new lacquer surface layer and lacquer surface layer color phase on existing building After close, then carry out large area repair.
Effect of the invention is that: the restorative procedure that existing building exterior wall true stone paint of the invention falls off, firstly, using red The thermal defects of outer thermal imaging detection existing building exterior wall, judge between mortar base and base course wall with the presence or absence of bonding Defect, fully understands the bond quality status of existing building exterior wall entirety, to lock abnormal area, then to abnormal area into Detection is checked and is tapped at row scene, to there are the positions of doubt to carry out pull-out test, in conjunction with the further analytical table of each side's face data The reason of face temperature anomaly, and determine position, area and the degree for needing the lacquer repaired to fall off position, then, according to true The fall off testing result at position of mineral varnish determines corresponding recovery scenario, can be targetedly undesirable to bond quality Position is repaired, improve lacquer fall off position judgement accuracy, and by targeted recovery scenario raising repair Compound body amount can either make existing building exterior wall take on an entirely new look, and effectively can enhance or extend the service life of existing building.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for one embodiment of restorative procedure that existing building exterior wall true stone paint of the invention falls off;
Fig. 2 is the anchor studs arrangement schematic diagram of the existing building exterior wall after repairing.
Figure label is as follows:
Base course wall 1;Mortar base 2;Lacquer surface layer 3;Anchor studs 4;Bi-component epoxide-resin glue 5;Jointing 6.
Specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.It should be noted that attached drawing is adopted With very simplified form and using non-accurate ratio, only to facilitate, lucidly aid in illustrating the embodiment of the present invention Purpose.For sake of convenience, "upper" described below, "lower" are consistent with the upper and lower direction of attached drawing, but this can't be this hair The limitation of bright technical solution.
Illustrate the restorative procedure that existing building exterior wall true stone paint of the invention falls off below, the specific steps are as follows:
S1: using the thermal defects of infrared thermal imaging technique detection existing building exterior wall, judge mortar base 2 and base's wall It whether there is bonding defect between body 1, to lock abnormal area, and abnormal area carried out to tap detection and pull-out test, Determine position, area and degree that lacquer falls off;
S2: determining corresponding recovery scenario according to the lacquer of the step S1 location detection result that falls off, to existing building outside It is repaired at the lacquer of the wall position that falls off.
The restorative procedure that existing building exterior wall true stone paint of the invention falls off, firstly, being detected using infrared thermal imaging technique The thermal defects of existing building exterior wall judge to fully understand between mortar base 2 and base course wall 1 with the presence or absence of bonding defect The bond quality status of existing building exterior wall entirety, to lock abnormal area, then to abnormal area carry out scene check and Detection is tapped, to there are the positions of doubt to carry out pull-out test, further analyzes surface temperature anomaly in conjunction with each side's face data Then reason, and determine position, area and the degree for needing the lacquer repaired to fall off position falls off position according to lacquer Testing result determine corresponding recovery scenario, targetedly the undesirable position of bond quality can be repaired Copy, improve lacquer fall off position judgement accuracy, and by targeted recovery scenario improve repairing quality, can So that existing building exterior wall is taken on an entirely new look, and effectively can enhance or extend the service life of existing building.
Above-mentioned percussion detection is to utilize percussion tool (tapping hammer etc.) lightly continuous knocking exterior wall surface, clear according to echo It is crisp or dull to determine whether existing defects and the approximate location for determining defect method, pull-out test is strong to finish coat bonding The detection method of degree, according to the requirement of JGJ110-2008, the detecting instrument that pull-out test uses is binding strength detecting instrument, inspection Survey method should meet the regulation of the existing professional standard " binding strength detecting instrument " of country, and the present embodiment uses Japan NEC-H2640 Infrared thermal imager.
The testing result of above-mentioned steps S1 is that 2 hollowing area of mortar base reaches 2m2More than, step S2 is specific as follows:
It makes marks along 2 hollowing adjacent margins of mortar base, is cut further along label, by the mortar of hollowing after cutting Base 2 rejects, and clears up the floating ash on 1 surface of base course wall;
Using 1 surface of base course wall described in batch embedding interfacial agents brushing, then by adhesive be added cement mortar layering painting in The base course wall 1 carries out layering repairing with cement mortar again until its surfacing, after cement mortar solidification, maintenance, Spray lacquer surface layer 3.
The testing result of above-mentioned steps S1 hollowing phenomenon occurs for mortar base 2 but its surface is not cracked, and mortar base 2 Hollowing area be not more than 2m2, step S2 is specific as follows:
It makes marks along 2 hollowing adjacent margins of mortar base, drills out diameter 6mm, deep 70mm with electric hand drill+diamond bit Hole, forbid using high-power the impact drilling, shaken to prevent secondary pulse and expand hollowing range, it is dedicated with borehole cleaning after drilling Wire brush, soot blowing specific purpose tool remove the dust in hole, it is ensured that ashless residual in hole injects bi-component ring after the completion of borehole cleaning Oxygen resin glue 5, and anchor studs 4 are implanted into, after bi-component epoxide-resin glue 5 just cure, sealed with jointing agent jointing 6, then spray Apply lacquer surface layer 3.The mortar base 2 of hollowing is anchored in by base course wall 1 using bi-component epoxide-resin glue 5 and anchor studs 4, Enhance the bonding strength of the two.
Further, it is fallen off the size at position according to lacquer, lays anchoring by horizontal, vertical (X and Y-axis) direction interval Nail 4, every square metre of quantity for repairing anchor studs 4 in metope are no less than 4, and space D≤300mm that the arrangement of anchor studs 4 is laid, Effective anchorage depth of each anchor studs 4 is not less than 25mm, guarantees that base course wall 1, and anchor can be stably fixed on by repairing metope Admittedly nail 4 is made using stainless steel material or surface through the metal material of preservative treatment, anchor studs 4 is avoided to corrode.
As shown in Fig. 2, the interval of two neighboring anchor studs 4 setting in same row or same row, adjacent row or adjacent column Anchor studs 4 are staggered, i.e., anchor studs 4 are in quincuncial arrangement, can enhance the bonding strength for repairing metope and base course wall 1.
The testing result of above-mentioned steps S1 is metope cracking, and when fracture width is more than 1mm, is dug out along the fracture strike junction of the edges of two sheets of paper V-groove, groove depth extends to 1 upper surface of base course wall, and V-groove depth ratio is more than or equal to 2: 1, then, clears up V-type ditch Slot, brushing interface treating agent simultaneously fill caulking material, scrape flexible repairing clay on caulking material surface batch, finally spray lacquer Surface layer 3.The setting of V-groove increases the contact area of wall body slit and caulking material, can tightly block in crack, with Guarantee that repairing quality, interface treating agent can be improved the caking property in caulking material and crack.Finally, polishing closure site Processing, and it is polishing to smooth as the periphery metope of repairing be advisable.
Described flexible 2~3 times batches, repairing clay point are scraped, and each batch is scraped thickness no more than 2mm.Flexibility repairing clay has excellent Different morphotropism and mobility, after gradation batch is scraped, flexibility repairing clay and filleting and periphery wall adhesion strength are higher, have Good adhesive force can efficiently control and cover crack.
In above-mentioned steps S2, specific step is as follows for spraying lacquer surface layer 3:
S201: carrying out inspection cleaning to mortar base 2, sprays alkali-resistant sealing primer, and when basecoat paint uses 2mm internal diameter Nozzle, it is fog-like after ejection, coating uniform is made every effort to, after priming paint parches, it is necessary to be completely covered by metope, no floating, yellowing phenomenon;
S202: spraying lacquer surface layer 3 requires when spraying spray bucket perpendicular to exterior wall surface, and left apart from wall face 40cm The right side, spray bucket gas output will uniformly, and air pressure is between 0.5~0.7 megapascal.It is made an arc when spraying with fish scale or horizontal line direct-injection is advisable, with Exempt to cause vertical mark, coating thickness is 2~3mm, and dosage is about 3~5Kg/m2
S203: the acute angle particle on 3 surface of lacquer surface layer is polished 30~50%, can increase beauty by finishing lacquer surface layer 3 Feel and reduces sharp keen and avoid dirt entrapment;
S204: aqueous finish is sprayed, the spraying process and basecoat paint technique of aqueous finish are almost the same, aqueous cover After finishing coat parches, no picking, peeling, leakage are brushed, are revealed the exact details, anti-alkali, stinging color, stream phenomenon, and solid colour, decorative pattern is clearly, uniformly.
In above-mentioned steps S2, since lacquer has various colors, new and old material comparison has certain color difference, if control is not When, meeting extreme influence entirety facade effect, and existing building to be repaired has certain age substantially, even if finding former material Expect that manufacturer is equipped with same batch of material, also has certain color difference, therefore when repairing, toning template construction need to be first carried out, is first mixed colours Sample selects a region to carry out sample with existing building metope colour contrast after sample is close with original color, then on existing building Plate construction, same curing condition and under the time, it is ensured that 3 color of lacquer surface layer in new lacquer surface layer 3 and existing building After close, then large area repair is carried out, avoids larger color difference, impact effect.
Foregoing description is only the description to present pre-ferred embodiments, not to any restriction of the scope of the invention, this hair Any change, the modification that the those of ordinary skill in bright field does according to the disclosure above content, belong to scope of the claims.

Claims (10)

1. the restorative procedure that existing building exterior wall true stone paint falls off, which is characterized in that steps are as follows:
S1: using the thermal defects of infrared thermal imaging technique detection existing building exterior wall, judge mortar base and base course wall it Between whether there is bonding defect, to lock abnormal area, and abnormal area is carried out to tap detection and pull-out test, be determined true Position, area and the degree that mineral varnish falls off;
S2: determining corresponding recovery scenario according to the lacquer of the step S1 location detection result that falls off, to existing building outside It is repaired at the lacquer of the wall position that falls off.
2. restorative procedure according to claim 1, which is characterized in that the testing result of the step S1 is that mortar base is empty Drum surface product reaches 2m2More than, the step S2 is as follows:
It makes marks along mortar base hollowing adjacent margins, is cut further along label, by the mortar base of hollowing after cutting It rejects, clears up the floating ash on base course wall surface;
Cement mortar layering painting is added in the base using base course wall surface described in batch embedding interfacial agents brushing, then by adhesive Layer wall carries out layering repairing with cement mortar again until its surfacing, and after cement mortar solidification, maintenance, spraying is true Stone-type paint surface layer.
3. restorative procedure according to claim 1, which is characterized in that the testing result of the step S1 is that mortar base goes out Show hollowing but its surface is not cracked, and the hollowing area of the mortar base is not more than 2m2, the step S2 is as follows:
It makes marks along mortar base hollowing adjacent margins and drills out hole, inject bi-component epoxide-resin glue after borehole cleaning, and plant Enter anchor studs, after cure at the beginning of bi-component epoxide-resin glue, hole jointing is sealed with jointing agent.
4. restorative procedure according to claim 3, it is characterised in that: lay anchor studs by horizontal, vertical direction interval, often Square metre repairing the quantity of the anchor studs in metope is no less than 4.
5. restorative procedure according to claim 4, it is characterised in that: the space D that the anchor studs arrangement is laid≤ Effective anchorage depth of 300mm, each anchor studs are not less than 25mm.
6. restorative procedure according to claim 4 or 5, it is characterised in that: the two neighboring institute in same row or same row It states anchor studs interval to be arranged, the anchor studs of adjacent row or adjacent column are staggered.
7. restorative procedure according to claim 1, which is characterized in that the testing result of the step S1 is that cracking of wall surface is wide When degree is more than 1mm, V-groove is dug out along the fracture strike junction of the edges of two sheets of paper, groove depth extends to base course wall upper surface, and the V Type trench depth ratio is more than or equal to 2: 1, then, clears up the V-groove, and brushing interface treating agent simultaneously fills caulking material, Flexible repairing clay is scraped on caulking material surface batch, finally sprays lacquer surface layer.
8. restorative procedure according to claim 7, it is characterised in that: described flexible 2~3 times batches, repairing clay point are scraped, often Secondary batch is scraped thickness no more than 2mm.
9. the restorative procedure according to claim 2 or 7, which is characterized in that the step of spraying lacquer surface layer is as follows:
S201: inspection cleaning is carried out to mortar base, sprays alkali-resistant sealing primer;
S202: spraying lacquer surface layer, spray bucket is perpendicular to exterior wall surface when spraying, and when spraying is made an arc with fish scale or horizontal line direct-injection;
S203: finishing lacquer surface layer;
S204: aqueous finish is sprayed.
10. restorative procedure according to claim 9, it is characterised in that: in the step S202, spray the lacquer face When layer, toning template construction is first carried out, first does toning sample, and existing building metope colour contrast, in sample and original color phase After close, then a region is selected on existing building to carry out template construction, same curing condition and under the time, it is ensured that new lacquer face After layer is close with lacquer surface layer color on existing building, then carry out large area repair.
CN201910316556.4A 2019-04-19 2019-04-19 The restorative procedure that existing building exterior wall true stone paint falls off Pending CN110185274A (en)

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CN111173308A (en) * 2020-01-13 2020-05-19 马飒路 Construction method for repairing thermal insulation crack of external wall
CN111779313A (en) * 2020-08-17 2020-10-16 宁波威士伯汉华装饰工程有限公司 Fired surface repairing structure and construction process

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Publication number Priority date Publication date Assignee Title
CN111173308A (en) * 2020-01-13 2020-05-19 马飒路 Construction method for repairing thermal insulation crack of external wall
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