CN106049892A - Repairing method for damp-proof course of historical building - Google Patents
Repairing method for damp-proof course of historical building Download PDFInfo
- Publication number
- CN106049892A CN106049892A CN201610374600.3A CN201610374600A CN106049892A CN 106049892 A CN106049892 A CN 106049892A CN 201610374600 A CN201610374600 A CN 201610374600A CN 106049892 A CN106049892 A CN 106049892A
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- China
- Prior art keywords
- wall
- hole
- mortar
- damp
- historical building
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- 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.)
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Classifications
-
- 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
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/64—Insulation or other protection; Elements or use of specified material therefor for making damp-proof; Protection against corrosion
- E04B1/644—Damp-proof courses
- E04B1/648—Damp-proof courses obtained by injection or infiltration of water-proofing agents into an existing wall
Abstract
The invention discloses a repairing method for a damp-proof course of a historical building. The repairing method for the damp-proof course of the historical building comprises the following steps that (1) wall plaster and loose mortar in mortar joints are removed, and cement mortar is embedded in the hollow mortar joints and brick defect positions of a wall; (2) a sealing protective waterproof layer is smeared on the wall with a waterproof agent and mortar paint as raw materials; (3) grouting holes are drilled between brick joints on the wall coated with the sealing protective waterproof layer at the inclination angle of 20-50 degrees, and waterproof grout is injected into the grouting holes; (4) 2-4 days later, holes are drilled in the positions of the original grouting holes again, and a proper amount of waterproof grout is injected into the grouting holes; and (5) one day later, the grouting holes are blocked with clean hole sealing grout. According to the repairing method, operation and equipment requirements are simple, the construction cost is low, the construction period is short, and the efficiency is high; and it is detected that the amount of capillary water rising into the repaired wall is greatly reduced, and a remarkable damp-proof effect is achieved.
Description
Technical field
The present invention relates to build recovery technique field, particularly relate to the restorative procedure of a kind of historical building damp-proof layer.
Background technology
Great majority build existing building, historical sites building in last century before the fifties, or are fitted without protection against the tide
The building of layer, or the building that the damp-proof layer installed at that time has damaged, taking to repair or reset damp-proof layer is that protection is with comprehensive
Utilize one of technological means that these existing buildings, historical sites build.
At present, the technical method repairing damp-proof layer has two classes substantially: physical method and chemical injection method.Chemistry side
Method is to be expelled in body of wall by hydrophobic material by pressure or natural gravity, capillarity etc. (no pressure), is formed in body of wall
The technological means of damp-proof layer continuously.The method started to begin one's study and reality engineering in countries such as Germany from the 1950's
Execute.Britain has promulgated that in 1985 Britain's chemical method repairs technical standard BS6576:1985 of damp-proof layer
‘Installationforchemicaldamp-proofcourses’.It is to beat by cognitive chemical redemption damp-proof layer method at present
Aqueous or the solvent-type organosilicons such as inclined hole injection (no pressure or pressurization) potassium methyl silicate.As patent CN102022009A discloses
A kind of method of non-destructive reparation damp-proof layer and rearmounted damp-proof layer, inject high-effective water-proof slurry liquid, warp by described injected hole
Fully spread, solidify, block after reach moistureproof purpose；Patent CN104790682A discloses a kind of body of wall damp-proof layer reparation side
Method, with using new injecting paste material, thus is effectively improved the repairing effect of body of wall；Patent CN102943568A discloses a kind of micro-
Damage damp-proof layer chemical repair method, by injecting the paste hydrophober (silane paste) with silane as key component in hole, make block
Build mortar, clay brick becomes hydrophobic, cuts off and rises capillary water, reaches to repair the purpose of damp-proof layer.
In prior art, technical scheme disclosed in patent CN102022009A is to non-destructive damp-proof layer repairing effect relatively
Good, but damp-proof layer is destroyed more poor than the moisture effect of more serious building, work progress easily causes wall crazing around,
Secondary is caused to destroy；Logical being incorporated in base polyurethane prepolymer for use as system by alduronic acid of patent CN104790682A reacts, at note
Base polyurethane prepolymer for use as is modified in hole by slurry, and institute's exothermic heat of reaction, has a certain impact to body of wall in the process；Patent
CN102943568A all uses new injecting paste material, and the active component content of the mastic of organosilicon is only 15%, and this low have
The organosilicon of effect component has to pass through repeatedly (general 3-4 time) and constructs and can be only achieved design effect, and, because wherein the containing of water
Amount reaches weight ratio 75%, is difficult to diffusion in moist body of wall.
Summary of the invention
The present invention solves the problems referred to above of the prior art, it is proposed that the restorative procedure of a kind of historical building damp-proof layer,
" injection " that the present invention uses repairs damp-proof layer, and moisture content is reduced to 14～15% by original 20.2～22.5%, reduces
Amplitude reaches 24～38%, has obvious moisture effect.
For achieving the above object, the present invention is by the following technical solutions:
The present invention provides the restorative procedure of a kind of historical building damp-proof layer, comprises the following steps:
(1) remove mortar loose in wall plaster and mortar joint, use mortar joint and the walltile in cement mortar embedding short covering hole
At block defect；
(2) it is painted with raw material with waterproofing agent and mortar, coats closure waterproof layer at metope；
(3) with the inclination angular bit injected hole of 20-50 ° between the metope brickwork joint of coating closure waterproof layer, note in injected hole
Entering waterproofing slurry, waterproofing slurry fully spreads in injected hole, solidification；
(4), after 2-4 days, again in the hole site boring of original annotation slurry, in injected hole, appropriate waterproofing slurry, water resistant solution are injected
Material fully spreads in hole, solidification；
After (5) 1 days, sealing of hole clean plasm is used to block described injected hole.
Further, described step (2) covers closure waterproof layer at metope specifically comprises the processes of: in the interior wall topcoating of exterior wall
Covering twice closure waterproof layer, first is spray waterproofing agent (Kiesol) 0.5kg/m2, brushes ADS waterproof mortar 2kg/m2, second
For spray waterproofing agent (Kiesol) 0.2kg/m2, brush ADS waterproof mortar 1kg/m2.
Further, described step (2) covers closure waterproof layer at metope specifically comprises the processes of: in the two-sided painting of interior wall body of wall
Cover one metope closure waterproof, spray waterproofing agent (Kiesol) 0.2kg/m2, brush ADS waterproof mortar 2kg/m2.
Further, the aperture 15-25mm of injected hole in described step (3), spacing 8-15cm, angle 30 °.
Further, after described step (3) injects waterproofing slurry in injected hole, if waterproofing slurry quickly pours off,
Then inject sealing of hole clean plasm and block described injected hole.
Further, the injection standard injecting appropriate waterproofing slurry in described step (4) in injected hole is each hole
240 thick wall injection 500ml, 370 thick wall injection 750ml, 490 thick wall injection 1000ml.
Further, described waterproofing slurry selects gram lock leakage Water-proof liquid (Aida-Kiesol)；Preferably, described gram of lock leakage
Water-proof liquid (Aida-Kiesol) is gram lock leakage Water-proof liquid (Aida-Kiesol) after surfactant-modified, described surface
Activating agent is preferably the oxide of barium.
Further, described sealing of hole clean plasm selects the special clean plasm of sealing of hole (Aida-BohreholeSuspension).
The present invention uses technique scheme, compared with prior art, has the following technical effect that
The inventive method operation and equipment requirements are simple, and construction cost is low, and the construction period is short, efficiency is high；Through detection,
Body of wall after repair process its rise capillary water amount be substantially reduced, moisture content by original 20.2～22.5% be reduced to 14～
15%, reduction amplitude reaches 24～38%, has obvious moisture effect；Body of wall is damaged low, brick be there is no any damage, especially
It is suitable for the damp-proof layer reparation of dry wall, meets the few intervention principle to historical building material protection, can be in existing building and history
Further genralrlization application in the reparation of historical architecture damp-proof layer.
Accompanying drawing explanation
Fig. 1 is injection of the present invention " Principles schematic diagram；
Fig. 2 is the structural representation that the present invention coats the exterior wall of closure waterproof layer；
Fig. 3 is the structural representation that the present invention coats the interior wall of closure waterproof layer；
Detailed description of the invention
Below by specific embodiment, the present invention is carried out detailed and concrete introduction, so that being better understood from the present invention,
But following embodiment is not limiting as the scope of the invention.
As it is shown in figure 1, " injection " of the present invention Principles is: according to the theoretical mould of Gruen (1993) etc.
Type, in body of wall water content g (kg/m2 h) sometime and body of wall the coefficient of capillary suction ω of material (such as fragment of brick) square
It is directly proportional:
Body of wall t sometime, the water content kg/m2 h of a certain certain height.
The coefficient of capillary suction (kg/m2 h0.5), the description mineral material unit interval, the water absorption of unit are,
It it is the most important basic physical parameters of mineral material.
The a certain height (m) of body of wall.
The maximum water absorption (weight %) of materials for wall.
The density (kg/m3) of water.
After damp-proof layer damages, subsoil water will rise along pore in body of wall.Known by modern physics theory, work as ore deposit
After capillary porosity in thing material (such as masonry) has hydrophobicity, ω will change significantly.The capillary water absorption system of untreated brick body
Number ω=10kg/m2 h0.5 the coefficient of capillary suction the value of Rhizoma Begoniae Willsonii (Chinese tradition clay is black /), after injection treatment, reduce
(brick body that leakage waterproofing agent processes, its coefficient of capillary suction value can be locked through Lei Mashi company Ai Da for ω=1kg/m2 h0.5
Generally ω=0.5kg/m2 h0.5), in the case of other condition is constant, the moisture content of body of wall certain height reduces
95%.
After special waterproof agent edge is drilled into body of wall, on the one hand waterproofing agent wicks in material, another
Aspect is crack, weak band infiltration flowing diffusion along body of wall, makes the coefficient of capillary suction of the brick body around boring reduce, in hole
Around form water blocking tape, prevent capillary rise water.The method it is crucial that various bodies of wall to select suitable waterproofing agent, therefore exist
Basic data analysis before construction just seems particular importance.
The reparation of the damp-proof layer of marble mansion, Application Example China Welfare Institute children's palace, comprises the following steps:
(1) face pretreatment: before metope closure waterproof construction, must first remove mortar loose in wall plaster and mortar joint, so
At the mortar joint in rear employing cement mortar embedding short covering hole and metope fragment of brick defect；
(2) metope coating closure waterproof layer, including:
A, exterior wall closure waterproof (as shown in Figure 2): it is waterproof that the inner wall surface of exterior wall need to do twice closure, first is waterproof for spray
Agent (Kiesol) 0.5kg/m2, brushes ADS waterproof mortar 2kg/m2；Second is spray waterproofing agent (Kiesol) 0.2kg/m2, brushes ADS
Waterproof mortar 1kg/m2；
B, interior wall closure waterproof (as shown in Figure 3): it is waterproof that the two-sided need of interior wall body of wall do one metope closure, spray waterproofing agent
(Kiesol) 0.2kg/m2, brushes ADS waterproof mortar 2kg/m2；
(3) body of wall internal injection is waterproof: boring, boring aperture 20mm or 22mm, spacing 12cm, angle 30 °, and eyelet selects
Between brickwork joint, examination fills gram lock leakage Water-proof liquid (Aida-Kiesol), if gram lock leakage Water-proof liquid (Aida-Kiesol) quickly pours off, then
Clean plasm (Aida-Bohrehole Suspension) need to be injected；
After (4) three days, hole the most in position, injection gram lock leakage Water-proof liquid (Aida-Kiesol).The thick wall in each hole 240
Injection 500ml, 370 thick wall injection 750ml, 490 thick wall injection 1000ml；
After (5) one days, hole clean plasm (Aida-Bohrehole Suspension) blocks.
Contrast on effect: injection waterproof construction is after about one month, and mensuration of resampling moisture content, the change of moisture content sees table
1、2。
The change of some differing heights water content measured by the internal load bearing wall of table 1 first
The change of some differing heights water content measured by the internal load bearing wall of table 2 second
It can be seen that injecting anti-underwater from above-mentioned Tables 1 and 2, the moisture content of brick does not almost change, or slightly
Having increase, and injecting more than the anti-water surface, moisture content is reduced to 14～15% by original 20.2～22.5%.Reduction amplitude reaches
24～38%.When needing in view of the water (reason that the sample moisture content under waterproof layer increases) of rendering generation and the dry of body of wall
Between, effect is fairly obvious.Detection explanation after repairing basement damp-proof layer about 4 weeks, chemical injection has repaired damp-proof layer
There is obvious effect.It was verified that using " injection " is the effective approach of one that damp-proof layer is repaired.
Being described in detail the specific embodiment of the present invention above, but it is intended only as example, the present invention does not limit
It is formed on particular embodiments described above.To those skilled in the art, any equivalent modifications that the present invention is carried out and
Substitute the most all among scope of the invention.Therefore, the impartial conversion made without departing from the spirit and scope of the invention and
Amendment, all should contain within the scope of the invention.
Claims (8)
1. the restorative procedure of a historical building damp-proof layer, it is characterised in that comprise the following steps:
(1) remove mortar loose in wall plaster and mortar joint, use the mortar joint in cement mortar embedding short covering hole and metope fragment of brick to lack
At damage；
(2) it is painted with raw material with waterproofing agent and mortar, coats closure waterproof layer at metope；
(3) with the inclination angular bit injected hole of 20-50 ° between the metope brickwork joint after coating closure waterproof layer, inject in injected hole
Waterproofing slurry；
(4) after 2-4 days, again in the hole site boring of original annotation slurry, injecting appropriate waterproofing slurry in injected hole, waterproofing slurry exists
Fully spread in hole, solidification；
After (5) 1 days, sealing of hole clean plasm is used to block described injected hole.
The restorative procedure of historical building damp-proof layer the most according to claim 1, it is characterised in that in described step (2)
Metope covers the technique of closure waterproof layer: the inner wall surface at exterior wall coats twice closure waterproof layer, and first is spray waterproofing agent
Kiesol 0.5kg/m2, brushes ADS waterproof mortar 2kg/m2, and second is spray waterproofing agent Kiesol 0.2kg/m2, and ADS is waterproof for brush
Mortar 1kg/m2.
The restorative procedure of historical building damp-proof layer the most according to claim 1, it is characterised in that in described step (2)
Metope covers the technique of closure waterproof layer: at one metope closure waterproof layer of interior wall body of wall dual coating, sprays waterproofing agent Kiesol
0.2kg/m2, brushes ADS waterproof mortar 2kg/m2.
The restorative procedure of historical building damp-proof layer the most according to claim 1, it is characterised in that note in described step (3)
The aperture 15-25mm in slurry hole, spacing 8-15cm, angle 30 °.
The restorative procedure of historical building damp-proof layer the most according to claim 1, it is characterised in that in described step (3) to
After injecting waterproofing slurry in injected hole, if waterproofing slurry quickly pours off, then inject sealing of hole clean plasm and block described injected hole.
The restorative procedure of historical building damp-proof layer the most according to claim 1, it is characterised in that in described step (4) to
The injection standard injecting appropriate waterproofing slurry in injected hole is each hole 240 thick wall injection 500ml, 370 thick wall injections
750ml, 490 thick wall injection 1000ml.
The restorative procedure of historical building damp-proof layer the most according to claim 1, it is characterised in that described waterproofing slurry is selected
Gram lock leakage Water-proof liquid Aida-Kiesol.
The restorative procedure of historical building damp-proof layer the most according to claim 1, it is characterised in that described sealing of hole clean plasm is selected
Sealing of hole special clean plasm Aida-Bohrehole Suspension.
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| CN201610374600.3A CN106049892A (en) | 2016-05-31 | 2016-05-31 | Repairing method for damp-proof course of historical building |
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| CN201610374600.3A CN106049892A (en) | 2016-05-31 | 2016-05-31 | Repairing method for damp-proof course of historical building |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108086712A (en) * | 2018-01-25 | 2018-05-29 | 德才装饰股份有限公司 | A kind of ancient architecture walling center pillar safeguard structure and construction method |
| CN108179887A (en) * | 2017-12-29 | 2018-06-19 | 上海住总集团建设发展有限公司 | A kind of method for dismounting of historical building ground clinker tile |
| CN109083411A (en) * | 2018-08-02 | 2018-12-25 | 上海聚通装饰集团有限公司 | A kind of bottom moisture plugging technology |
| CN110905090A (en) * | 2019-12-06 | 2020-03-24 | 广州市岭南建筑研究中心 | Method for repairing damp-proof layer of high-relative-humidity building wall |
| WO2023124059A1 (en) * | 2021-12-28 | 2023-07-06 | 上海建为历保科技股份有限公司 | Damp-proof structure and method for ancient dwelling wall |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108179887A (en) * | 2017-12-29 | 2018-06-19 | 上海住总集团建设发展有限公司 | A kind of method for dismounting of historical building ground clinker tile |
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| CN109083411A (en) * | 2018-08-02 | 2018-12-25 | 上海聚通装饰集团有限公司 | A kind of bottom moisture plugging technology |
| CN110905090A (en) * | 2019-12-06 | 2020-03-24 | 广州市岭南建筑研究中心 | Method for repairing damp-proof layer of high-relative-humidity building wall |
| WO2023124059A1 (en) * | 2021-12-28 | 2023-07-06 | 上海建为历保科技股份有限公司 | Damp-proof structure and method for ancient dwelling wall |
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Application publication date: 20161026 |