CN115126275A - Historical building brushstone veneer repairing protection material and method - Google Patents
Historical building brushstone veneer repairing protection material and method Download PDFInfo
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- CN115126275A CN115126275A CN202210794817.5A CN202210794817A CN115126275A CN 115126275 A CN115126275 A CN 115126275A CN 202210794817 A CN202210794817 A CN 202210794817A CN 115126275 A CN115126275 A CN 115126275A
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- 239000000463 material Substances 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims abstract description 37
- XAAHAAMILDNBPS-UHFFFAOYSA-L calcium hydrogenphosphate dihydrate Chemical compound O.O.[Ca+2].OP([O-])([O-])=O XAAHAAMILDNBPS-UHFFFAOYSA-L 0.000 claims abstract description 75
- 239000004575 stone Substances 0.000 claims abstract description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000010276 construction Methods 0.000 claims abstract description 22
- 238000004381 surface treatment Methods 0.000 claims abstract description 14
- 230000001680 brushing effect Effects 0.000 claims abstract description 10
- 238000004140 cleaning Methods 0.000 claims abstract description 9
- 238000005070 sampling Methods 0.000 claims abstract description 6
- 239000004568 cement Substances 0.000 claims description 40
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 18
- 230000001681 protective effect Effects 0.000 claims description 10
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 9
- 241000189524 Baccharis halimifolia Species 0.000 claims description 7
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 7
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- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- 239000012752 auxiliary agent Substances 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 5
- 230000002209 hydrophobic effect Effects 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 239000010703 silicon Substances 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 4
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 claims description 4
- 239000000839 emulsion Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 229920002472 Starch Polymers 0.000 claims description 3
- 229920002522 Wood fibre Polymers 0.000 claims description 3
- 229920003086 cellulose ether Polymers 0.000 claims description 3
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 3
- 239000008107 starch Substances 0.000 claims description 3
- 235000019698 starch Nutrition 0.000 claims description 3
- 239000002025 wood fiber Substances 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims description 2
- 235000011613 Pinus brutia Nutrition 0.000 claims description 2
- 241000018646 Pinus brutia Species 0.000 claims description 2
- IRERQBUNZFJFGC-UHFFFAOYSA-L azure blue Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[S-]S[S-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] IRERQBUNZFJFGC-UHFFFAOYSA-L 0.000 claims description 2
- 239000006229 carbon black Substances 0.000 claims description 2
- ZLFVRXUOSPRRKQ-UHFFFAOYSA-N chembl2138372 Chemical compound [O-][N+](=O)C1=CC(C)=CC=C1N=NC1=C(O)C=CC2=CC=CC=C12 ZLFVRXUOSPRRKQ-UHFFFAOYSA-N 0.000 claims description 2
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 claims description 2
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 239000011572 manganese Substances 0.000 claims description 2
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000779 smoke Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 description 12
- 201000010099 disease Diseases 0.000 description 7
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000002002 slurry Substances 0.000 description 6
- 229910052599 brucite Inorganic materials 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000004567 concrete Substances 0.000 description 4
- 238000005336 cracking Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 239000012459 cleaning agent Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- 239000002969 artificial stone Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- WTFXARWRTYJXII-UHFFFAOYSA-N iron(2+);iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[Fe+2].[Fe+3].[Fe+3] WTFXARWRTYJXII-UHFFFAOYSA-N 0.000 description 1
- LDHBWEYLDHLIBQ-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide;hydrate Chemical compound O.[OH-].[O-2].[Fe+3] LDHBWEYLDHLIBQ-UHFFFAOYSA-M 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
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
- E04G23/0296—Repairing or restoring facades
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/10—Lime cements or magnesium oxide cements
- C04B28/12—Hydraulic lime
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention discloses a historical building brushstone veneer repairing and protecting method, which comprises the following steps: step 1, recording the current state characteristics of the brushite to be repaired, and sorting, photographing and retaining files; step 2, sampling on the site of the brushite to be repaired, and determining the color and the proportion of the repair material; step 3, detecting the strength of the brushite to be repaired, and determining the mechanical property of the repairing material; step 4, performing surface treatment on the stone grains protruding from the brushite to be repaired by using a stone surface treatment material; step 5, selecting at least one brushite area on the brushite site to be repaired, constructing a repair material, comparing whether the texture of the brushite is close to that before and after repair, if the difference is larger, adjusting the formula of the repair material according to the comparison result until the texture of the brushite is close to that before and after repair; step 6, cleaning the repaired water brushing stone painted wall surface, wherein the base surface is basically dry, and the water content is below 15%; and 7, performing large-area construction on the brushite to be repaired.
Description
Technical Field
The invention relates to the technical field of building facade repair protection, in particular to a historical building brushstone veneer repair protection material and a method.
Background
Water brush stones, which were first produced in about 1880 as on-site artificial stones (stone paints) using cement, a hydraulic binder, were introduced into the Shanghai in about 1910 and have been widely popularized and developed in the Shanghai, which was once popular in southeast Asia and is called "Shanghaiplass, Shanghai slop". The water brush stone takes (ancient) cement as a cementing material, and small-particle-size stone grains (stone slag, glass, black and white mineral crystals and the like) are added as aggregate to prepare mixed mortar. The water brush stone can achieve different 'stone imitation' veneer effects by selecting stone grains with different grain diameters, different colors and different textures, cement with different colors and the design of separation lines, and is an economical, practical, durable, weather-resistant, natural and attractive veneer process. The brushite is used as an important carrier of architectural history, culture and artistic characteristics and has high historical, technical and aesthetic and scientific research values.
Although the waterproof scree as a cement product has good durability, the waterproof scree veneer used in modern historical buildings has been used for nearly one hundred years and is damaged to different degrees under the influence of natural weathering and artificial intervention (particularly early adoption of a strong corrosive cleaning agent), such as hollowing, cracking, falling, pollution and the like. The solidified brucite consists of stone grains and cement stones. Because the weathering resistance of the stone particles, particularly granite particles adopted in the early stage of Shanghai, is generally higher than that of the cement stones, the brushstone on the historical buildings has the disease that the stone particles fall off due to the weathering of the cement stones. The water brush stone is eradicated under many conditions and is repeatedly used, so that the history is destroyed and remains, and the history style is further destroyed.
Disclosure of Invention
The invention is made to solve the above problems, and aims to provide a historic building brushstone facing repair protection material and a historic building brushstone facing repair protection method.
The invention provides a historic building brushstone veneer repairing and protecting method which is characterized by comprising the following steps: step 1, recording the current situation characteristics of the brushite to be repaired, and sorting, photographing and retaining files; step 2, sampling on the site of the brushite to be repaired, and determining the color and the proportion of the repair material; step 3, detecting the strength of the brushite to be repaired, and determining the mechanical property of the repair material; step 4, before construction, performing surface treatment on the stone grains protruding from the brushite to be repaired by using a stone surface treatment material; step 5, before repairing, selecting at least one brushite area on the brushite site to be repaired, constructing a repairing material, comparing whether the texture of the brushite is close to that before and after repairing, and if the difference is larger, adjusting the formula of the repairing material according to the comparison result until the texture of the brushite is close to that before and after repairing; step 6, cleaning the repaired water brushing stone painted wall surface, wherein the base surface is basically dry, and the water content is below 15%; and 7, carrying out large-area construction on the brushite to be repaired, wherein the large-area construction comprises the following steps: determining the size of a single construction area, working time intervals among all working procedures, protecting a transition area and protecting finished products.
The historical building brushstone veneer repairing and protecting method provided by the invention can also have the following characteristics: in the step 3, the strength of the repairing material is lower than that of the brushite to be repaired, and the capillary water absorption coefficient is higher than that of the brushite to be repaired.
The historic building brushstone veneer repairing and protecting method provided by the invention can also have the following characteristics: wherein, in the step 4, the stone surface treatment material is a water-based organic silicon hydrophobic material.
The historic building brushstone veneer repairing and protecting method provided by the invention can also have the following characteristics: wherein, the water-based organic silicon hydrophobic material is siloxane emulsion.
The invention provides a historical building brushstone veneer repairing protection material, which has the following characteristics: the historical building brushite veneer repairing and protecting material is a repairing material in the historical building brushite veneer repairing and protecting method.
The historical building brushite veneer repair protective material provided by the invention can also have the following characteristics: the repair material is formed by mixing inorganic mineral toner, low-grade cement, high-calcium air-hardening lime and an auxiliary agent.
The historical building brushite veneer repair protective material provided by the invention can also have the following characteristics: wherein the inorganic mineral toner is 0.1-5 wt%, and is one or more of iron oxide red, toluidine red, iron oxide yellow, chrome green, phthalocyanine green, ultramarine, chrome blue, phthalocyanine blue, iron oxide brown, iron oxide violet, iron oxide black, carbon black, manganese black and pine smoke.
The historical building brushite veneer repair protective material provided by the invention can also have the following characteristics: wherein the low-grade cement accounts for 10-30% of the total mass of the repair material, the low-grade cement is formed by mixing white cement and gray cement, the white cement accounts for 80-75% of the total mass of the low-grade cement, and the gray cement accounts for 20-25% of the total mass of the low-grade cement.
The historical building brushite veneer repair protective material provided by the invention can also have the following characteristics: wherein the high-calcium air-hardening lime accounts for 70-90% of the total mass of the repair material.
The historical building brushstone veneer repair protective material provided by the invention can also have the following characteristics: wherein, the auxiliary agent comprises: 0.1-0.2% of starch ether, 0.3-0.5% of redispersible rubber powder, 1-2% of cellulose ether and 0.3-1.0% of wood fiber.
Action and Effect of the invention
According to the historical building brushstone veneer repairing and protecting method, the concrete process is as follows: step 1, recording the current situation characteristics of the brushite to be repaired, and sorting, photographing and retaining files; step 2, sampling on the site of the brushite to be repaired, and determining the color and the proportion of the repair material; step 3, detecting the strength of the brushite to be repaired, and determining the mechanical property of the repairing material; step 4, before construction, performing surface treatment on stone grains protruding from the brushite to be repaired by using a stone surface treatment material; step 5, before repairing, selecting at least one brushite area on the brushite site to be repaired, constructing a repairing material, comparing whether the texture of the brushite is close to that before and after repairing, and if the difference is large, adjusting the formula of the repairing material according to the comparison result until the texture of the brushite is close to that before and after repairing; step 6, cleaning the repaired water brushing stone painted wall surface, wherein the base surface is basically dry, and the water content is below 15%; and 7, carrying out large-area construction on the brushite to be repaired, wherein the large-area construction comprises the following steps: determining the size of a single construction area, working time intervals among all working procedures, protecting a transition area and protecting finished products.
Therefore, the existing restoration mainly aims at the diseases of cracking, hollowing, missing and the like of the brushite, and the diseases of stone particle shedding caused by weathering of the cement stone are not treated or are integrally removed and reworked. The invention makes up the method for repairing and treating the diseases.
In addition, compared with the method without repairing, the method can well prolong the service life of the water brush stone on the premise of keeping the original appearance of the vertical face.
Finally, compared with the method that the brushite is integrally reworked, the method can better protect and retain the brushite, reduce secondary damage caused by repair and be more economical.
Drawings
FIG. 1 is a schematic diagram illustrating a damaged painting and repairing method of an example of a rubble on the outer wall of the American lead agency in the Utility model of the Shanghai (in 1920 s);
fig. 2 is a graph comparing the effects of a plurality of simulation experiments in the embodiment of the present invention.
Detailed Description
In order to make the technical means, creation features, achievement purposes and effects of the invention easy to understand, the following embodiments are specifically described in the following with reference to the accompanying drawings.
In the embodiment, a method for repairing and protecting a historical building brushstone veneer is provided.
The historical building brushstone veneer repairing and protecting method related to the embodiment comprises the following steps:
and step S1, recording the current characteristics of the brushite to be repaired, and sorting, photographing and keeping a file.
And step S2, sampling on the site of the daub stone to be repaired, and determining the color and the proportion of the repair material.
Step S3, detecting the strength of the brushite to be repaired, and determining the mechanical properties of the repair material, in this embodiment, the strength of the repair material is lower than that of the brushite to be repaired, and the capillary water absorption coefficient is higher than that of the brushite to be repaired.
Step S4, before construction, surface treatment is carried out on the stone grains with protruding brushite to be repaired by using a stone surface treatment material, and the concrete process is as follows:
fig. 1 is a schematic diagram illustrating a damaged painting and repairing method of an example of a rubble on the outer wall of a maritime united states leadership (built in 1920 s) in the embodiment of the invention.
As shown in figure 1(I), the air gun and the brush are used for cleaning weathered and loosened cement stones and floating ash on the surface of the water brush stone to be repaired, and a firm base surface is exposed.
As shown in figure 1(II), after cleaning, a layer of special stone surface treating agent is coated on the surface of the protruded stone particles immediately, the main component is diluent of organic silicon hydrophobic emulsion, and the ratio of the emulsion to water is 1: 4. The quantity of the surface treating agent dipped in the brush is strictly controlled in the brushing process, sagging is avoided, the treating agent is required to be only brushed on the surfaces of the protruding stone particles and on the concave cement stones, and the rain-proof maintenance is carried out for more than 24 hours after the brushing.
And step S5, before repairing, selecting a brucite area on the brucite site to be repaired, constructing a repairing material, comparing whether the texture of the brucite is close to that before and after repairing, and if the difference is larger, adjusting the formula of the repairing material according to the comparison result until the texture of the brucite is close to that before and after repairing.
As shown in fig. 1- (III), the surface of the stone is pre-wetted with clear water before construction after maintenance, the protruding stone particles will not absorb water due to the action of the stone surface treating agent, and the cement stones in the recesses will be wetted after water absorption, so that the water amount is appropriate to avoid leaving clear water. The prepared repairing material is added with water according to the proportion of 20-30% of the mass of the powder, mechanically stirred to prepare uniform slurry, and the slurry is uniformly coated on the surface of the brushite by using a plaster cutter and completely covers the surface of the brushite, and is about 1mm higher than stone particles.
After curing for about 30 minutes, as shown in fig. 1(IV), the concrete time is based on actual conditions, the surface of the slurry is dried, and the repairing slurry on the surface of the stone particles is removed by lightly wiping the surface with sponge dipped water according to the condition that no finger mark exists on the hand, so that the slurry is slightly lower than the stone particles, and the stone particles are exposed.
And step S6, cleaning the repaired water brushing stone painted wall surface, wherein the base surface is basically dry, and the water content is below 15%.
After the sponge is cleaned and maintained for 24 hours, the slurry is further cured, the weak-acid stone cleaning agent is used for cleaning the surface of the stone, so that the surface of stone grains is cleaned more thoroughly, and the stone grains need to be fully cleaned by water after being cleaned to avoid acid substance residues.
And after the surface is cleaned and dried, a layer of ethyl silicate reinforcing material is sprayed on the surface of the water brushite to reinforce the surface material.
Step S7, large-area construction is carried out on the brushite to be repaired,
in this embodiment, the large-area construction includes: determining the size of a single construction area, working time intervals among all working procedures, protecting a transition area and protecting finished products.
Fig. 2 is a graph comparing the effects of a plurality of simulation experiments in the embodiment of the present invention.
As shown in fig. 2, it is understood that the brushite was severely weathered and cracked before being repaired, and the crack was repaired after the repair.
The repairing material in the embodiment is formed by mixing inorganic mineral toner, low-grade cement, high-calcium air hardening lime and an auxiliary agent, wherein the specific proportion is 20% of the low-grade cement, 75% of the high-calcium air hardening lime, 4% of the auxiliary agent and 1% of the inorganic mineral toner.
In this example, the ratio of the inorganic mineral toner was 1%, and the specific components were red iron oxide, yellow iron oxide, and black iron oxide.
In this embodiment, the low-grade cement accounts for 20% of the total mass of the repair material, and the low-grade cement is formed by mixing white cement and gray cement, the white cement accounts for 80% of the total mass of the low-grade cement, and the gray cement accounts for 20% of the total mass of the low-grade cement.
In this example, the high calcium air-hardening lime accounts for 75% of the total mass of the repair material.
In this embodiment, the auxiliary includes: 0.2% of starch ether, 0.5% of redispersible rubber powder, 1% of cellulose ether and 2.3% of wood fiber.
Effects and effects of the embodiments
According to the historical building brushstone veneer repairing and protecting method related to the embodiment, the concrete process is as follows: step 1, recording the current situation characteristics of the brushite to be repaired, and sorting, photographing and retaining files; step 2, sampling on the site of the brushite to be repaired, and determining the color and the proportion of the repair material; step 3, detecting the strength of the brushite to be repaired, and determining the mechanical property of the repairing material; step 4, before construction, performing surface treatment on stone grains protruding from the brushite to be repaired by using a stone surface treatment material; step 5, before repairing, selecting at least one brushite area on the brushite site to be repaired, constructing a repairing material, comparing whether the texture of the brushite is close to that before and after repairing, and if the difference is larger, adjusting the formula of the repairing material according to the comparison result until the texture of the brushite is close to that before and after repairing; step 6, cleaning the repaired water brushing stone painted wall surface, wherein the base surface is basically dry, and the water content is below 15%; and 7, carrying out large-area construction on the brushite to be repaired, wherein the large-area construction comprises the following steps: determining the size of a single construction area, operating time intervals among all working procedures, protecting a transition region and protecting finished products.
Therefore, the existing restoration mainly aims at the diseases of cracking, hollowing, missing and the like of the brushite, and the diseases of stone particle shedding caused by weathering of the cement stone are not treated or are integrally removed and reworked. The embodiment makes up for the repair and treatment method of the disease.
In addition, compared with the embodiment, the service life of the brushite can be well prolonged on the premise of keeping the original appearance of the vertical face without repairing.
Finally, the embodiment better protects and retains the brushing stone compared with the brushing stone which is integrally reworked, reduces secondary damage caused by repair, and is more economical.
The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.
Claims (10)
1. A historic building brushstone veneer repairing and protecting method is characterized by comprising the following steps:
step 1, recording the current state characteristics of the brushite to be repaired, and sorting, photographing and retaining files;
step 2, sampling on the site of the brushite to be repaired, and determining the color and the proportion of the repair material;
step 3, detecting the strength of the brushite to be repaired, and determining the mechanical property of the repairing material;
step 4, before construction, performing surface treatment on the stone grains with protruding brushite to be repaired by using a stone surface treatment material;
step 5, before repairing, selecting at least one brushite region on the brushite site to be repaired, constructing the repairing material, comparing whether the texture of the brushite is close to that before and after repairing, and if the difference is large, adjusting the formula of the repairing material according to the comparison result until the texture of the brushite is close to that before and after repairing;
step 6, cleaning the repaired water brushing stone painted wall surface, wherein the base surface is basically dry, and the water content is below 15%;
step 7, carrying out large-area construction on the brushite to be repaired,
wherein the large area construction comprises: determining the size of a single construction area, working time intervals among all working procedures, protecting a transition area and protecting finished products.
2. The historical building brushstone veneer repair protection method of claim 1, wherein:
in the step 3, the strength of the repairing material is lower than that of the brushite to be repaired, and the capillary water absorption coefficient is higher than that of the brushite to be repaired.
3. The historical building brushstone veneer restoration protection method of claim 1, wherein:
and 4, in the step 4, the stone surface treatment material is a water-based organic silicon hydrophobic material.
4. The historical building brushstone veneer repair protection method of claim 3, wherein:
wherein the water-based organic silicon hydrophobic material is siloxane emulsion.
5. The utility model provides a protection material is restoreed to historical architecture water brush stone veneer which characterized in that:
the historical building brushite facing repair protection material is the repair material in the historical building brushite facing repair protection method of any one of claims 1 to 4.
6. The historical building brushstone veneer repair protective material of claim 5, wherein:
the repair material is formed by mixing inorganic mineral toner, low-grade cement, high-calcium air-hardening lime and an auxiliary agent.
7. The historical building brushstone veneer repair protective material of claim 5, wherein:
wherein the weight percentage of the inorganic mineral matter toner is 0.1-5%,
the inorganic mineral toner is any one or combination of more of iron oxide red, toluidine red, iron oxide yellow, chrome green, phthalocyanine green, ultramarine, chrome blue, phthalocyanine blue, iron oxide brown, iron oxide purple, iron oxide black, carbon black, manganese black and pine smoke.
8. The historical building brushite veneer repair protective material of claim 5, wherein:
wherein the low-grade cement accounts for 10-30% of the total mass of the repair material,
the low-grade cement is formed by mixing white cement and gray cement,
the white cement accounts for 75-80% of the total mass of the low-grade cement, and the grey cement accounts for 20-25% of the total mass of the low-grade cement.
9. The historical building brushite veneer repair protective material of claim 5, wherein:
wherein the high-calcium air-hardening lime accounts for 70-90% of the total mass of the repair material.
10. The historical building brushstone veneer repair protective material of claim 5, wherein:
wherein, the auxiliary agent comprises: 0.1-0.2% of starch ether, 0.3-0.5% of redispersible rubber powder, 1-2% of cellulose ether and 0.3-3.0% of wood fiber.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118429226A (en) * | 2024-05-15 | 2024-08-02 | 中国中建设计研究院有限公司 | Automatic color matching configuration method and device suitable for marble |
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| CN101864843A (en) * | 2009-04-14 | 2010-10-20 | 武汉建工股份有限公司 | Method for repairing floriation and linellae of granitic plaster on historical building |
| JP2015006965A (en) * | 2013-06-25 | 2015-01-15 | 宇部興産株式会社 | Repair method of concrete structure |
| CN109138480A (en) * | 2018-09-12 | 2019-01-04 | 上海市建筑装饰工程集团有限公司 | Historical building exterior wall granitic plaster painting metope does aging method |
| CN113802786A (en) * | 2021-08-25 | 2021-12-17 | 上海建筑装饰(集团)有限公司 | Construction process of water brushing stone wall |
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| CN101864843A (en) * | 2009-04-14 | 2010-10-20 | 武汉建工股份有限公司 | Method for repairing floriation and linellae of granitic plaster on historical building |
| CN101624268A (en) * | 2009-08-07 | 2010-01-13 | 武汉理工大学 | Treatment agent of recycled aggregate of waste concrete and treatment method |
| JP2015006965A (en) * | 2013-06-25 | 2015-01-15 | 宇部興産株式会社 | Repair method of concrete structure |
| CN109138480A (en) * | 2018-09-12 | 2019-01-04 | 上海市建筑装饰工程集团有限公司 | Historical building exterior wall granitic plaster painting metope does aging method |
| CN113802786A (en) * | 2021-08-25 | 2021-12-17 | 上海建筑装饰(集团)有限公司 | Construction process of water brushing stone wall |
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| CN118429226A (en) * | 2024-05-15 | 2024-08-02 | 中国中建设计研究院有限公司 | Automatic color matching configuration method and device suitable for marble |
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