CN103195217B - Adhering outer wall outer heat insulating system energy-saving reconstruction base layer processing method for existing buildings - Google Patents
Adhering outer wall outer heat insulating system energy-saving reconstruction base layer processing method for existing buildings Download PDFInfo
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- CN103195217B CN103195217B CN 201310142005 CN201310142005A CN103195217B CN 103195217 B CN103195217 B CN 103195217B CN 201310142005 CN201310142005 CN 201310142005 CN 201310142005 A CN201310142005 A CN 201310142005A CN 103195217 B CN103195217 B CN 103195217B
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Abstract
The invention belongs to the technical field of outer wall outer heat insulating energy-saving reconstruction projects for existing buildings and particularly relates to a base layer processing method in prior to adhering outer wall outer heat insulating system energy-saving reconstruction for existing buildings. The method is characterized by including: researching outer wall finish coat appearance defects; diagnosing outer wall finish coat adhering defects; and specific base layer processing. By the method, outer wall finish coat defects are diagnosed before base layer processing, drawing detection of adhering strength of the finish coat and adhesives is performed, and accordingly problems of hollowing, cracking and dropping due to the outer wall outer heat insulating system and the base layer wall are unprocessed or processed simply are avoided, reliable connection of the outer heat insulating system wit the base layer wall in outer wall outer heat insulating energy-saving reconstruction is achieved, and safety and durability of the outer wall outer heat insulating system are improved.
Description
Technical field
The present invention relates to existing building external-wall external-insulation energy-saving transformation field, particularly, relate to the base treatment method of a kind of existing building adhesive type external thermal insulation system reducing energy consumption.
Background technology
External thermal insulation system is widely applied in existing building reducing energy consumption engineering.But at present the base treatment method for the transformation of adhesive type external-wall external-insulation energy-saving is comparatively simple, usually just the former finish coat of exterior wall is cleaned up, and leveling is repaired at its crack, the serious position of surface fracture such as come off.This processing method inevitably exists some rejected regions not process, as: the bonding position of coming to nothing of the former finish coat of exterior wall, former finish coat because of freeze injury, saltout, the reason such as erosion causes its adhesion strength lower position.Just can not guarantee like this that external thermal insulation system reliably is connected with base course wall, thereby caused many existing building external-wall external-insulation energy-saving improvement projects just the problems such as metope cracking, hollowing, insulation layer come off to occur soon after completion, affected applying of existing building external-wall external-insulation energy-saving transformation.
Summary of the invention
For solving the workmanship hidden danger that exists in adhesive type external thermal insulation system reducing energy consumption base treatment, guarantee that outer heat preservation system is connected with the safe and reliable of existing building base course wall, the invention provides the base treatment method of a kind of adhesive type external thermal insulation system reducing energy consumption.
For achieving the above object, the present invention adopts following scheme:
Existing building adhesive type external thermal insulation system reducing energy consumption base treatment method comprises following four steps: the investigation of exterior wall finish layer open defect; The diagnosis of exterior wall finish layer bonding defect; Exterior trim surface layer and adhesive bonds intensity detection; Concrete base treatment.
Preferably, the investigation of exterior wall finish layer open defect comprises following content:
(1), consult existing building external-wall external-insulation energy-saving improvement project design drawing, and with the property management personnel, link up understanding, confirm that practical use, environmental characteristic and the building of building has or not repairing;
(2), the various open defects that the former finish coat of existing building exterior wall occurred by on-the-spot ocular estimate, and carry out key words sorting.
Preferably, various outer defective tubes are freeze injury, analyse salt, erosion, oil stain, hole, pit, cracking.
Preferably, the diagnosis of exterior wall finish layer bonding defect comprises following content:
(1), utilize thermal infrared imager External Wall finish coat bonding defect to diagnose, formulate detection scheme, study preparatory condition, environment, the meteorological condition of tested building, and determine on this basis placement location, detection distance, the detection number of times of detection time, thermal infrared imager and adopt hammering method to confirm the position of thermal imagery method testing result;
(2), carry out the thermal infrared imager Site Detection, record date, climatic condition, the metope that area is large need piecemeal to take; In testing process, utilize external heat source to inject heat to measured target, relend and help checkout equipment to record working surface heat radiation everywhere to distribute to judge defect;
(3), take thermography and thermal imagery is processed, being divided into is to carry out in two stages, the one, it is synthetic that the Infrared Thermogram that piecemeal is taken carries out correct splicing, and the image after synthetic is carried out Geometric corrections; The 2nd, remove background, eliminate the temperature gradient that while detecting, cause at the elevation angle, the abnormal area of outstanding image, output is inferred figure through the second stage infrared thermal imagery of processing and the hollowing that the external wall elevation CAD that the surveys figure of institute correctly superposes, then according to the Color Image Analysis testing result of its unsticking hollowing, and then mark bonding position of coming to nothing.
Preferably, climatic condition be weather, wind-force, temperature, sunshine situation.
Preferably, exterior trim surface layer and adhesive bonds intensity detection, method is as follows: be at first that original surface of wall is processed and kept dry, smear the 5-8mm polymer bonding mortar on its surface, after mortar to be bonded reaches intensity, with modified epoxide resin adhesive, the drawing piece is sticked on the mortar surface, then with the adhesion strength drawing instrument, again it is detected, judge that whether its adhesion strength is greater than 0.3MPa.
Preferably, concrete base treatment comprises following content:
(1), for step 1, detect the freeze injury that the former finish coat of exterior wall occurs, the oil stain of analysing salt, erosion problem and exterior wall surface, with the alkali lye eccysis of 5%-10% concentration, mildew is gone mould dose of processing with chemistry;
(2), detect for step 1 hole, pit, the problem of Cracking that the former finish coat of exterior wall occurs, tackling its hole, pit, cracking position fills and repairs and polish flat, the crack larger part, surfacing becomes " V " font, and is smooth with cement or epoxy fill.
(3), for step 2, detect the bonding problem of coming to nothing that the former finish coat of exterior wall occurs, tackle its hollowing, boss is rejected, and with the cement mortar of 1:3, repairs levelling;
(4), for the detected former finish coat of step 3 and the adhesive bond intensity problem less than 0.3MPa, tackle the finish coat at this place and reject, will remove finish coat place polishing with the 1:3 cement mortar, then do interface levelling or plucking processing.
Preferably, chemistry goes mould dose to be the liquor natrii hypochloritis of 3% zinc fluosilicate or 0.5%.
Preferably, plain brick wall, decorating surface brick, granitic plaster adopt the drawing piece of 95mm * 45mm * 10mm; Coating metope adopts the drawing piece of 100mm * 100mm * 10mm.
Preferably, utilize external heat source to inject heat to measured target and adopt solar radiation, indoor heating, air-conditioning equipment are made the temperature difference.
Beneficial effect of the present invention is as follows: the present invention is before the base treatment of carrying out the external thermal insulation system reducing energy consumption, first External Wall finish coat defect is diagnosed, and the adhesion strength of external finish coat and bonding adhesive is carried out the drawing detection, avoided between external thermal insulation system and base course wall not processing or the hollowing that simple process is brought, the problem such as ftracture, come off, effectively solve the reliable connectivity problem of outer heat preservation system and base course wall in the transformation of adhesive type external-wall external-insulation energy-saving, improved safety, the endurance quality of external thermal insulation system.
The specific embodiment
Existing building adhesive type external thermal insulation system reducing energy consumption base treatment method comprises following four steps:
Step 1: the investigation of exterior wall finish layer open defect comprises following content:
(1), consult existing building external-wall external-insulation energy-saving improvement project design drawing, and with the property management personnel, link up understanding, confirm that practical use, environmental characteristic and the building of building has or not repairing;
(2), the various open defects that the former finish coat of existing building exterior wall occurred by on-the-spot ocular estimate, as freeze injury, analyse salt, erosion, oil stain, hole, pit, cracking etc., carry out key words sorting;
Step 2: the diagnosis of exterior wall finish layer bonding defect comprises following content
(1), utilize thermal infrared imager External Wall finish coat bonding defect to diagnose, formulate detection scheme, study preparatory condition, environment, the meteorological condition of tested building, and determine on this basis detection time, thermal infrared imager placement location, detect distance, detect number of times and adopt the methods such as hammering method to confirm the position of thermal imagery method testing results;
(2), carry out the thermal infrared imager Site Detection, record date, climatic condition (as situations such as weather, wind-force, temperature, sunshines), the metope that area is large need piecemeal to take; In testing process, utilize external heat source to inject heat to measured target, usually select solar radiation, also can pass through indoor heating, the air-conditioning equipment manufacturing temperature difference; Relend and help checkout equipment to record working surface heat radiation everywhere to distribute to judge defect; To privileged sites as the case may be, detection reference is set; The outward appearance situation of detection reference, detection reference temperature and building should be recorded on piecemeal shooting figure in advance.
(3), take thermography and thermal imagery is processed, being divided into is to carry out in two stages, the one, it is synthetic that the Infrared Thermogram that piecemeal is taken carries out correct splicing, and the image after synthetic is carried out Geometric corrections; The 2nd, remove background, eliminate the temperature gradient that while detecting, cause at the elevation angle, the abnormal area of outstanding image, output is inferred figure through the second stage infrared thermal imagery of processing and the hollowing that the external wall elevation CAD that the surveys figure of institute correctly superposes, then according to the Color Image Analysis testing result of its unsticking hollowing, and then mark bonding position of coming to nothing.
Step 3: exterior trim surface layer and adhesive bonds intensity detection, method is as follows: be at first that original surface of wall is processed and kept dry, smear the 5-8mm polymer bonding mortar on its surface, after mortar to be bonded reaches intensity, with modified epoxide resin adhesive, the drawing piece is sticked on the mortar surface, plain brick wall, decorating surface brick, granitic plaster are the drawing pieces that adopts 95mm * 45mm * 10mm; Coating metope adopts the drawing piece of 100mm * 100mm * 10mm, then with the adhesion strength drawing instrument, it is detected again, and judges that whether its adhesion strength is greater than 0.3MPa.
Step 4: concrete base treatment comprises following content:
(1), for step 1, detect the freeze injury that the former finish coat of exterior wall occurs, the oil stain of analysing salt, erosion problem and exterior wall surface, with the alkali lye eccysis of 5%-10% concentration, mildew is gone mould dose of processing with the chemistry such as liquor natrii hypochloritis of 3% zinc fluosilicate or 0.5%;
(2), detect for step 1 hole, pit, the problem of Cracking that the former finish coat of exterior wall occurs, tackling its hole, pit, cracking position fills and repairs and polish flat, the crack larger part, surfacing becomes " V " font, and is smooth with cement or epoxy fill.
(3), for step 2, detect the bonding problem of coming to nothing that the former finish coat of exterior wall occurs, tackle its hollowing, boss is rejected, and with the cement mortar of 1:3, repairs levelling;
(4), for the detected former finish coat of step 3 and the adhesive bond intensity problem less than 0.3MPa, tackle the finish coat at this place and reject, will remove finish coat place polishing with the 1:3 cement mortar, then do interface levelling or plucking processing.
Claims (7)
1. an existing building adhesive type external thermal insulation system reducing energy consumption base treatment method, is characterized in that, comprises following four steps: the investigation of exterior wall finish layer open defect; The diagnosis of exterior wall finish layer bonding defect; Concrete base treatment;
The investigation of exterior wall finish layer open defect comprises following content:
(1), consult existing building external-wall external-insulation energy-saving improvement project design drawing, and with the property management personnel, link up understanding, confirm that practical use, environmental characteristic and the building of building has or not repairing;
(2), the various open defects that the former finish coat of existing building exterior wall occurred by on-the-spot ocular estimate, and carry out key words sorting;
Various open defects are freeze injury, analyse salt, erosion, oil stain, hole, pit, cracking;
The diagnosis of exterior wall finish layer bonding defect comprises following content:
(1), utilize thermal infrared imager External Wall finish coat bonding defect to diagnose, formulate detection scheme, study preparatory condition, environment, the meteorological condition of tested building, and determine on this basis placement location, detection distance, the detection number of times of detection time, thermal infrared imager and adopt hammering method to confirm the position of thermal imagery method testing result;
(2), carry out the thermal infrared imager Site Detection, record date, climatic condition, the metope that area is large need piecemeal to take; In testing process, utilize external heat source to inject heat to measured target, relend and help checkout equipment to record working surface heat radiation everywhere to distribute to judge defect;
(3), take thermography and thermal imagery is processed, being divided into is to carry out in two stages, the one, it is synthetic that the Infrared Thermogram that piecemeal is taken carries out correct splicing, and the image after synthetic is carried out Geometric corrections; The 2nd, remove background, eliminate the temperature gradient that while detecting, cause at the elevation angle, the abnormal area of outstanding image, output is inferred figure through the second stage infrared thermal imagery of processing and the hollowing that the external wall elevation CAD that the surveys figure of institute correctly superposes, then according to the Color Image Analysis testing result of its unsticking hollowing, and then mark bonding position of coming to nothing.
2. existing building adhesive type external thermal insulation system reducing energy consumption base treatment method according to claim 1, is characterized in that, climatic condition be weather, wind-force, temperature, sunshine situation.
3. existing building adhesive type external thermal insulation system reducing energy consumption base treatment method according to claim 2, it is characterized in that, exterior trim surface layer and adhesive bonds intensity detection, method is as follows: be at first that original surface of wall is processed and kept dry, smear the 5-8mm polymer bonding mortar on its surface, after mortar to be bonded reaches intensity, with modified epoxide resin adhesive, the drawing piece is sticked on the mortar surface, then again it is detected with the adhesion strength drawing instrument, judge that whether its adhesion strength is greater than 0.3MPa.
4. existing building adhesive type external thermal insulation system reducing energy consumption base treatment method according to claim 3, is characterized in that, concrete base treatment comprises following content:
(1), for step 1, detect the freeze injury that the former finish coat of exterior wall occurs, the oil stain of analysing salt, erosion problem and exterior wall surface, with the alkali lye eccysis of 5%-10% concentration, mildew is gone mould dose of processing with chemistry;
(2), detect for step 1 hole, pit, the problem of Cracking that the former finish coat of exterior wall occurs, tackling its hole, pit, cracking position fills and repairs and polish flat, the crack larger part, surfacing becomes " V " font, and is smooth with cement or epoxy fill;
?(3), for step 2, detect the bonding problem of coming to nothing that the former finish coat of exterior wall occurs, tackle its hollowing, boss is rejected, and with the cement mortar of 1:3, repairs levelling;
(4), for the detected former finish coat of step 3 and the adhesive bond intensity problem less than 0.3MPa, tackle the finish coat at this place and reject, will remove finish coat place polishing with the 1:3 cement mortar, then do interface levelling or plucking processing.
5. existing building adhesive type external thermal insulation system reducing energy consumption base treatment method according to claim 4, is characterized in that, chemistry goes mould dose to be the liquor natrii hypochloritis of 3% zinc fluosilicate or 0.5%.
6. existing building adhesive type external thermal insulation system reducing energy consumption base treatment method according to claim 5, is characterized in that, plain brick wall, decorating surface brick, granitic plaster adopt the drawing piece of 95mm * 45mm * 10mm; Coating metope adopts the drawing piece of 100mm * 100mm * 10mm.
7. existing building adhesive type external thermal insulation system reducing energy consumption base treatment method according to claim 6, is characterized in that, utilizes external heat source to inject heat to measured target and adopt solar radiation, and indoor heating, air-conditioning equipment are made the temperature difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201310142005 CN103195217B (en) | 2013-04-23 | 2013-04-23 | Adhering outer wall outer heat insulating system energy-saving reconstruction base layer processing method for existing buildings |
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| CN 201310142005 CN103195217B (en) | 2013-04-23 | 2013-04-23 | Adhering outer wall outer heat insulating system energy-saving reconstruction base layer processing method for existing buildings |
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| CN103195217B true CN103195217B (en) | 2013-11-13 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053599B (en) * | 2016-06-27 | 2019-05-03 | 深圳大学 | A kind of detection method and detection device in exterior walls of buildings cavity |
| CN108490029B (en) * | 2018-03-13 | 2020-08-14 | 大连理工大学 | Method for detecting hollowing of outer wall finish coat |
| CN109356395A (en) * | 2018-09-03 | 2019-02-19 | 天津禾盛源新材料科技有限公司 | A kind of perfusion mortar method exterior-wall heat insulation repairerment technique |
| CN110185275A (en) * | 2019-04-19 | 2019-08-30 | 上海市建筑装饰工程集团有限公司 | The restorative procedure of existing building outer walls mildew |
| CN110185278A (en) * | 2019-04-19 | 2019-08-30 | 上海市建筑装饰工程集团有限公司 | The restorative procedure of existing building external thermal insulation system |
| CN110185279A (en) * | 2019-04-19 | 2019-08-30 | 上海市建筑装饰工程集团有限公司 | The restorative procedure of existing building sloughing of exterior wall |
| CN111173308B (en) * | 2020-01-13 | 2021-10-08 | 上海丁盈建设工程有限公司 | Construction method for repairing thermal insulation crack of external wall |
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