CN110185279A - The restorative procedure of existing building sloughing of exterior wall - Google Patents
The restorative procedure of existing building sloughing of exterior wall Download PDFInfo
- Publication number
- CN110185279A CN110185279A CN201910316638.9A CN201910316638A CN110185279A CN 110185279 A CN110185279 A CN 110185279A CN 201910316638 A CN201910316638 A CN 201910316638A CN 110185279 A CN110185279 A CN 110185279A
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- China
- Prior art keywords
- hollowing
- exterior wall
- restorative procedure
- existing building
- sloughing
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0203—Arrangements for filling cracks or cavities in building constructions
- E04G23/0211—Arrangements for filling cracks or cavities in building constructions using injection
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0296—Repairing or restoring facades
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The restorative procedure of existing building sloughing of exterior wall of the invention, is related to technical field of building construction.For the problem that existing restorative procedure is difficult to ensure the accuracy and repairing quality of sloughing of exterior wall position judgement, the service life of existing building exterior wall is affected.Steps are as follows: locking abnormal area using the thermal defects of infrared thermal imaging technique detection existing building exterior wall, and carries out tapping detection and brick pull-out test to abnormal area, determines position, area and the degree for needing the hollowing position repaired；Corresponding recovery scenario is determined according to the hollowing position inspection result of step, and External Wall hollowing position is repaired.
Description
Technical field
The present invention relates to technical field of building construction, in particular to a kind of restorative procedure of existing building sloughing of exterior wall.
Background technique
Currently, city new building, the construction of new landscape are maked rapid progress, they and urban middle-aged adjoin for old building remote
It coexists, shows diversified cityscape, however, being built always since the construction technology level at urban construction initial stage more falls behind
The exterior wall built mainly is made of mortar base laying finish coat, and finish coat is mostly ceramic tile or coating etc., the exterior wall of many old buildings
Because being more than many factors such as service life, exterior wall is caused phenomena such as large area hollowing, fall off, crack, especially exterior wall occur
Hollowing hidden danger very likely develop into quality accidents in the case where long neglected and in disrepair, therefore, for reaching service life
Inspection, the repair of old building exterior wall can not be ignored.
Existing existing building sloughing of exterior wall restorative procedure is to judge sloughing of exterior wall position by perception inspection, and cutting is rooted out
Hollowing position, and be layered and repaired with cement mortar again, still, which is difficult to ensure the accuracy of judgement and repairs matter
Amount, affects the service life of existing building exterior wall.
Summary of the invention
It is difficult to ensure the accuracy and repairing quality of the judgement of sloughing of exterior wall position for existing restorative procedure, affects existing
The problem of service life of external wall, the object of the present invention is to provide a kind of restorative procedure of existing building sloughing of exterior wall, energy
It is enough targetedly hollowing position to be implemented to repair, the accuracy of hollowing position judgement is improved, and by targetedly repairing
Compound case improves repairing quality.
The technical solution adopted by the present invention to solve the technical problems is: the restorative procedure of existing building sloughing of exterior wall, step
It is rapid as follows:
S1: abnormal area is locked using the thermal defects of infrared thermal imaging technique detection existing building exterior wall, and to exception
Region carries out tapping detection and brick pull-out test, determines position, area and the degree for needing the hollowing position repaired；
S2: corresponding recovery scenario is determined according to the hollowing position inspection result of the step S1, to the sloughing of exterior wall
It is repaired at position.
Preferably, the testing result of the step S1 is that finish coat hollowing site area reaches 2m2More than, the step S2 is such as
Under:
It makes marks along the hollowing adjacent margins, is cut further along label, pick the finish coat of hollowing after cutting
It removes, removes the mortar base of hollowing finish coat bottom, clear 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 until its surfacing, carries out layering repairing with cement mortar again, after cement mortar solidification, maintenance, apply
Work finish coat.
Preferably, there is hollowing phenomenon for mortar base in the testing result of the step S1 but its surface is not cracked, and institute
The hollowing area of mortar base is stated no more than 2m2, the step S2 is as follows:
It makes marks along the 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.
Preferably, using electric hand drill bonded diamond bit bore hole, described hole diameter 6mm, deep 70mm.
Preferably, according to the size at hollowing position, anchor studs, every square metre of reparation are laid by horizontal, vertical direction interval
The quantity of the anchor studs is no less than 4 in metope.
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.
Effect of the invention is that: the restorative procedure of existing building sloughing of exterior wall of the invention, firstly, using it is infrared heat at
As the thermal defects of technology detection existing building exterior wall lock abnormal area, the lower hollowing position of sunlight irradiation due to tapestry brick and
There are gaps between base course wall, so hollowing spot temperature is different from normal closely knit exterior wall, the color that infrared imaging goes out
Also different, by the identity to hollowing position, the bond quality status of existing building exterior wall entirety is fully understood, to lock different
Normal region；Then, abnormal area is carried out tapping detection and pull-out test, the hollowing position for needing to repair is determined, according to hollowing
The testing result at position determines corresponding recovery scenario, targetedly can implement to repair to hollowing position, improve hollowing
The accuracy of position judgement, and repairing quality is improved by targeted recovery scenario, old building exterior wall can either be made shining right
One is new, and effectively can enhance or extend the service life of existing building.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of restorative procedure of existing building sloughing of exterior wall of the invention；
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；Finish coat 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 of existing building sloughing of exterior wall of the invention in conjunction with Fig. 1 and Fig. 2, the specific steps are as follows:
S1: abnormal area is locked using the thermal defects of infrared thermal imaging technique detection existing building exterior wall, and to exception
Region carries out tapping detection and pull-out test, determines position, area and the degree for needing the hollowing position repaired；
S2: corresponding recovery scenario is determined according to the hollowing location detection result of the step S1, to the existing building
It is repaired at the hollowing position of exterior wall.
The restorative procedure of existing building sloughing of exterior wall of the invention, firstly, detecting existing build using infrared thermal imaging technique
The thermal defects locking abnormal area of exterior wall is built, the hollowing position under sunlight irradiation between tapestry brick and base course wall 1 due to depositing
In gap, so hollowing spot temperature is different from normal closely knit exterior wall, the color that infrared imaging goes out is also different, by sky
The identity of tympanic part position fully understands the bond quality status of existing building exterior wall entirety, to lock abnormal area；Then, right
Abnormal area carries out tapping detection and pull-out test, the hollowing position for needing to repair is determined, according to the testing result at hollowing position
It determines corresponding recovery scenario, targetedly hollowing position can be implemented to repair, improve the accurate of hollowing position judgement
Property, and repairing quality is improved by targeted recovery scenario, old building exterior wall can either be made to take on an entirely new look, and can be effective
Ground enhancing or the service life for extending existing building.
Above-mentioned percussion detection is to utilize percussion tool (tapping hammer etc.) lightly continuous knocking tapestry brick surface, according to echo
It is clear and melodious or dull to determine whether existing defects and determine defect approximate location method, pull-out test be to tapestry brick bond
The detection method of intensity, according to the requirement of JGJ110-2008, the detecting instrument that pull-out test uses for binding strength detecting instrument,
Detection method should meet the regulation of the existing professional standard " binding strength detecting instrument " of country.
In above-mentioned steps S2, testing result is that 3 hollowing site area of finish coat reaches 2m2More than, restorative procedure specific steps
It is as follows:
It makes marks along hollowing adjacent margins, is cut with cutting machine along label, by the finish coat of hollowing 3 after cutting
It rejects, removes the mortar base 2 of 3 bottom of hollowing finish coat, clear up the floating ash on 1 surface of base course wall, forbid herein using power shovel
The finish coat 3 of hollowing is directly rejected, expands hollowing range to prevent power shovel impact endurance test shock；
Cement mortar layering painting is added in base using batch embedding 1 surface of interfacial agents brushing base course wall, then by adhesive
Wall 1, each paint thickness are no more than 1.2cm, and painting carries out layering repairing with cement mortar again until surfacing, to
After cement mortar solidification, maintenance, with bonding agent bonding applique surface layer 3, reach scheduled intensity (i.e. design strength to bonding agent
75%) after, jointing 6 is carried out with dedicated tile pointing agent and is handled, is cleared up after the completion.
In above-mentioned steps S2, testing result hollowing phenomenon occurs for mortar base 2 but its surface is not cracked, and mortar base
2 hollowing area is not more than 2m2, specific step is as follows for restorative procedure:
It makes marks along hollowing adjacent margins, drills out diameter 6mm with electric hand drill+diamond bit, the hole of deep 70mm, then
It is drilled respectively according to hollowing site area size, forbids to shake to prevent secondary pulse using high-power the impact drilling and expand sky
Drum range uses the dust in the specific purpose tool removing hole of borehole cleaning special-purpose steel wire brush, soot blowing, it is ensured that ashless residual in hole after drilling
It stays, bi-component epoxide-resin glue 5 is injected after the completion of borehole cleaning, and be implanted into anchor studs 4, to the first cure of bi-component epoxide-resin glue 5
Afterwards, jointing 6 is carried out with dedicated tile pointing agent to seal.Using bi-component epoxide-resin glue 5 and anchor studs 4 by the mortar base of hollowing
Layer 2 is anchored in base course wall 1, enhances the bonding strength of the two.
Further, according to the size at hollowing position, anchor studs 4 are laid by horizontal, vertical (X and Y-axis) direction interval, often
The quantity for square metre repairing anchor studs 4 in metope is no less than 4, and the space D≤300mm, Mei Gemao that the arrangement of anchor studs 4 is laid
Admittedly effective anchorage depth of nail 4 is not less than 25mm, guarantee that base course wall 1 can be stably fixed on by repairing metope, and anchor studs 4 are adopted
It is made with 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.
Reinforced in addition, a solid method can also be used for the exterior wall that hollowing phenomenon does not occur, can increase intensity and
Pulling force, and structure and beauty are not influenced, prevent hollowing from expanding, to extend the service life of existing building.
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 (7)
1. the restorative procedure of existing building sloughing of exterior wall, which is characterized in that steps are as follows:
S1: abnormal area is locked using the thermal defects of infrared thermal imaging technique detection existing building exterior wall, and to abnormal area
It carries out tapping detection and brick pull-out test, determines position, area and the degree for needing the hollowing position repaired；
S2: corresponding recovery scenario is determined according to the hollowing position inspection result of the step S1, to the sloughing of exterior wall position
It is repaired.
2. restorative procedure according to claim 1, which is characterized in that the testing result of the step S1 is finish coat hollowing
Site area reaches 2m2More than, the step S2 is as follows:
It makes marks along the hollowing adjacent margins, is cut further along label, rejected the finish coat of hollowing after cutting, clearly
Except the mortar base of hollowing finish coat bottom, the floating ash on base course wall surface is cleared up；
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, after cement mortar solidification, maintenance, construction decorations
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 phenomenon 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 the hollowing adjacent margins and drills out hole, inject bi-component epoxide-resin glue after borehole cleaning, and be implanted into anchor
Gu nail seals hole jointing with jointing agent after cure at the beginning of bi-component epoxide-resin glue.
4. restorative procedure according to claim 3, it is characterised in that: electric hand drill bonded diamond bit bore hole is used,
Described hole diameter 6mm, deep 70mm.
5. restorative procedure according to claim 3, it is characterised in that: according to the size at hollowing position, by horizontal, Vertical Square
Anchor studs are laid to interval, every square metre of quantity for repairing the anchor studs in metope is no less than 4.
6. restorative procedure according to claim 5, 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.
7. restorative procedure according to claim 5, it is characterised in that: the two neighboring anchor in same row or same row
Gu the anchor studs of the setting of nail interval, adjacent row or adjacent column are staggered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910316638.9A CN110185279A (en) | 2019-04-19 | 2019-04-19 | The restorative procedure of existing building sloughing of exterior wall |
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| CN201910316638.9A CN110185279A (en) | 2019-04-19 | 2019-04-19 | The restorative procedure of existing building sloughing of exterior wall |
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| CN110185279A true CN110185279A (en) | 2019-08-30 |
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| CN201910316638.9A Pending CN110185279A (en) | 2019-04-19 | 2019-04-19 | The restorative procedure of existing building sloughing of exterior wall |
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Cited By (5)
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| CN110821198A (en) * | 2019-10-23 | 2020-02-21 | 浙江勤业建工集团有限公司 | High-rise building external wall thermal insulation mortar falling prevention method |
| CN111997288A (en) * | 2020-08-12 | 2020-11-27 | 南通四建集团有限公司 | Interior decoration large wall brick dry-pasting construction method |
| CN112160617A (en) * | 2020-09-21 | 2021-01-01 | 安徽墨砂工程修缮技术有限公司 | Method for repairing outer wall thermal insulation falling |
| CN113092578A (en) * | 2021-04-07 | 2021-07-09 | 上海应用技术大学 | Method for rapidly detecting external thermal insulation pasting quality of building |
| CN114541800A (en) * | 2022-03-04 | 2022-05-27 | 安徽富煌建筑科技有限公司 | Hollowing repair process for prefabricated filling wallboard hole |
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| CN112160617A (en) * | 2020-09-21 | 2021-01-01 | 安徽墨砂工程修缮技术有限公司 | Method for repairing outer wall thermal insulation falling |
| CN113092578A (en) * | 2021-04-07 | 2021-07-09 | 上海应用技术大学 | Method for rapidly detecting external thermal insulation pasting quality of building |
| CN114541800A (en) * | 2022-03-04 | 2022-05-27 | 安徽富煌建筑科技有限公司 | Hollowing repair process for prefabricated filling wallboard hole |
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Application publication date: 20190830 |