CN110563416A - Repairing method suitable for masonry structure surface and application thereof - Google Patents
Repairing method suitable for masonry structure surface and application thereof Download PDFInfo
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- CN110563416A CN110563416A CN201910893505.8A CN201910893505A CN110563416A CN 110563416 A CN110563416 A CN 110563416A CN 201910893505 A CN201910893505 A CN 201910893505A CN 110563416 A CN110563416 A CN 110563416A
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- 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
- C04B28/06—Aluminous cements
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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
- E04G23/0296—Repairing or restoring facades
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- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
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Abstract
The invention relates to the technical field of masonry structure repair, in particular to a repair method suitable for a masonry structure surface and application thereof. The method comprises the following steps: s1, removing mortar with lower strength grade or damaged and aged mortar on the base layer structure to be repaired; cleaning up sundries on structures such as mortar joints, brick surfaces, wall surfaces and the like, and then washing the cleaned objects with clean water; s2, fixing loose bricks on the base layer structure to be repaired, and filling repair mortar in the horizontal mortar joints and the vertical joints; s3, after the repairing mortar is condensed in S2, washing the surface of the layer to be repaired with clear water to enable the surface layer structure to reach a saturated state and the surface to have no clear water; s4, coating the interface agent on the surface of the repair structure; then uniformly and flatly coating the repair mortar on the interface agent; and (5) performing wet curing after the completion to obtain the product. The repairing method of the invention is based on the reasons of the defects of the traditional method; provides a comprehensive repair method, and well overcomes the defects brought by the temporary repair of the traditional method.
Description
Technical Field
the invention relates to the technical field of masonry structure repair, in particular to a repair method suitable for a masonry structure surface and application thereof.
Background
The information disclosed in this background of the invention is only for enhancement of understanding of the general background of the invention and is not necessarily to be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
When some masonry structure buildings in villages and small towns are accepted, the masonry mortar is found to have poor quality and can not meet the design requirements. After some building structures are used for a long period of time, the problems of structure aging, whole masonry mortar or large-area peeling and the like occur. For these phenomena, the engineering process usually adopts a method of replacing old mortar with new mortar. The method is a repairing method for removing the original mortar or damaged and aged mortar of the wall body and then replacing and filling the mortar with the prepared new mortar.
However, the inventor researches and discovers that: because many walls of villages and small towns are built by red bricks, the quality of external plastering mortar is poor, and the early-stage base treatment and later-stage maintenance of repair are not emphasized, the problems of low bonding force between the repair mortar and a repair base surface, shrinkage and cracking of the repair mortar and the like cannot be solved; in practical application, the repairing quality of many projects is low, the effect is poor, and the problems of mortar falling, shrinkage and cracking and the like do not occur for too long. It can be seen that: the conventional repair process is a temporary repair method, which has a good effect at the initial stage of repair, but such problems occur with the increase of time.
Disclosure of Invention
The invention aims to solve and realize the following problems: the traditional surface repair method of the masonry structure is easy to cause the problems of peeling, shrinkage and dry cracking of repair mortar; therefore, the masonry structure repairing method is economical and practical, convenient to operate and remarkable in repairing effect.
In order to realize the purpose, the invention discloses the following technical scheme:
A method for repairing a masonry structure surface, comprising the steps of:
S1, base surface cleaning: removing the original mortar on the base layer structure to be repaired; cleaning up sundries on structures such as mortar joints, brick surfaces, wall surfaces and the like, and then washing the cleaned objects with clean water;
S2, base layer processing: fixing loose bricks on a base layer structure to be repaired, and filling repair mortar in the horizontal mortar joints and the vertical joints;
s3, wetting treatment: after the repairing mortar is condensed in the step S2, washing the surface of the layer to be repaired with clear water to ensure that the surface layer structure reaches a saturated state and the surface has no clear water;
S4, coating interface agent and repairing mortar: coating the interface agent on the surface of the repair structure; then uniformly and flatly coating the repair mortar on the interface agent; and (5) performing wet curing after the completion to obtain the product.
The principle of the repairing method of the invention is as follows: firstly, in order to make the repair mortar be firmly and effectively bonded with the repair layer, the invention firstly treats the repair base layer so that the repair mortar can be directly contacted with the repair layer. And then, in order to ensure the repairing quality, reinforcing the loosened bricks, and filling mortar between brick joints. More importantly, the bricks are porous, so that the water absorption of the whole masonry structure is high, and the repair mortar on the surface of the structure is easy to shrink due to water loss and fall off due to infirm bonding with the structure. In order to solve the problem, the invention provides the following three technical means: 1. wetting, namely washing the surface of the repaired layer by using clear water to saturate the surface structure and avoid absorbing water from the repaired mortar; 2. the interface agent is used for smearing a layer of waterproof and impervious interface agent between the repair mortar and the repair layer, so that the water in the repair mortar is prevented from losing to the masonry structure; 3. and (4) carrying out moist curing, namely carrying out moist curing on the repair mortar after the repair construction is finished, and preventing the repair mortar from cracking and shrinking due to the loss of moisture.
Compared with the prior art, the invention has the following beneficial effects:
(1) Compared with the traditional method of replacing old mortar by only adopting new mortar, the repairing method is based on the reasons of the defects of the traditional method; proposed is comprising: the comprehensive repairing method comprises the steps of base surface cleaning, base layer treatment, interface agent smearing, mortar smearing, wet maintenance and the like, and well overcomes the defects caused by temporary repairing in the traditional method.
(2) The invention effectively enhances the bonding force of the base layer and the repairing layer by using the specific interface agent, namely the polymer modified sulphoaluminate cement paste, and the later maintenance can also prevent the occurrence of cracks because: 1. the polymer modified sulphoaluminate cement paste has good anti-permeability performance and can prevent the water of the repair mortar from being absorbed by bricks. 2. Compared with common Portland cement, the sulphoaluminate cement has the characteristics of quick hardening and early strength (the sulphoaluminate cement can meet the requirement after 3 hours of strength, and the common Portland cement can reach the same strength after 24 hours or more), has short setting time, can reduce the curing time of the interface agent, and shortens the construction period. 3. The interface agent and the repair mortar are sulphoaluminate cement-based materials, so that the interface bonding force between the interface agent and the mortar can be enhanced, and the repair effect is improved.
(3) The repairing method provided by the invention is characterized in that the used mortar is replaced by the interface agent and the repairing mortar, the thickness of the plastering layer is not increased, and the effective use area of the house is not reduced.
(4) The repairing method provided by the invention can be used for repairing only the part with poor quality, does not need to damage other wall surfaces and walls, and does not need to carry out large-area or integral reinforcement, thereby greatly reducing the construction cost.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
it is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms also are intended to include the plural forms as well, unless the context clearly indicates otherwise, and it should be further understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of the stated features, steps, operations, devices, components, and/or combinations thereof.
As described above, the conventional repair process is a temporary repair method, which has a good effect at the initial stage of repair, but such problems occur as time elapses. Therefore, the invention provides a repairing method suitable for the surface of the masonry structure.
In some exemplary embodiments, the loose bricks are fixed by: fixing by using a wood wedge; or fixing the steel wire rope by mortar in advance, and repairing the steel wire rope after the steel wire rope is firm. The brick is fixed mainly to ensure the quality of repair work. For example, in construction, a brick in a wall is loosened, and even if a layer of mortar is coated on the wall surface, the mortar around the brick is a weak item (the gap around the loosened brick is large, and water seepage and the continuous development of wall structure damage can be caused by weather, people or other reasons) and is easy to cause later-stage damage.
In typical embodiments, if the problem of slight loosening of the brick occurs, a wooden wedge is used for fixing; if the problem that the bricks are loosened and fall off occurs, the bricks need to be fixed by using repair mortar, and subsequent repair work is carried out after the mortar is condensed.
In some exemplary embodiments, when the horizontal mortar joints and the vertical mortar joints are filled with the repair mortar, the mortar is required to be level with the base surface, and the subsequent repair work is performed after the mortar is solidified.
In some typical embodiments, the interface agent is polymer modified sulphoaluminate cement paste which is compounded by polyvinyl alcohol rubber powder, sulphoaluminate cement, a defoaming agent and water, wherein the mass of the polyvinyl alcohol rubber powder is 0.5-1.5% of the weight of the sulphoaluminate cement, the mass of the defoaming agent is 0.15-0.4% of the weight of the sulphoaluminate cement, and the mass of the water is 20-35% of the weight of the sulphoaluminate cement.
In some typical embodiments, the interfacial agent is applied uniformly and smoothly without missing coating, and the thickness is preferably controlled to be between 1.0 and 2.5 mm.
In some typical embodiments, in step S4, the repair mortar is a polyvinyl alcohol modified sulphoaluminate cement mortar, which is prepared by compounding sulphoaluminate cement, polyvinyl alcohol glue powder, an antifoaming agent, a polycarboxylic acid water reducing agent, a retarder, river sand and water, wherein the polyvinyl alcohol glue powder is 0.5-1.5% by mass of the sulphoaluminate cement, the antifoaming agent is 0.15-0.35% by mass of the sulphoaluminate cement, the polycarboxylic acid water reducing agent is 0.25-0.4% by mass of the sulphoaluminate cement, the retarder is 0.08-0.15% by mass of the sulphoaluminate cement, the water is 45-55% by mass of the sulphoaluminate cement, and the river sand is 2.8-3.3 times by mass of the sulphoaluminate cement and has a particle size of less than 4.75 mm. The interface agent and the repair mortar are sulphoaluminate cement-based materials, so that the interface bonding force between the interface agent and the mortar can be enhanced, and the repair effect is improved.
in some exemplary embodiments, in step S4, the repair mortar is applied uniformly and flatly in one direction.
In some exemplary embodiments, when the repair mortar is applied to a thickness of more than 3cm in step S4, the repair mortar should be applied in layers, with a distance of about 3 hours between layers and a thickness of not more than 2cm per layer. (1) The mortar thickness is too high, and the flatness of the wall surface is not easy to control. (2) The mortar has a certain fluidity, and the mortar is too high in thickness and easy to flow or even fall off due to self weight. (3) The mortar is too high in thickness, so that uneven solidification is easily caused, and shrinkage stress is generated to cause dry cracking and even falling off. (4) The time interval is 3 hours, so that the mortar has sufficient setting and hardening conditions and certain strength.
In some typical embodiments, the wet curing time is 70-75 h. The strength increases slowly after curing for 3 days, and therefore, the curing time is preferably controlled within the above-mentioned time range.
In some exemplary embodiments, the wet curing method includes: watering and then covering with plastic cloth for curing.
In other exemplary embodiments, the repairing method for masonry structure surface provided by the invention is also used in the building field for repairing various buildings, walls and the like suitable for repairing.
the invention will now be further described with reference to specific embodiments.
In the following examples, the base layer structure to be repaired is red brick, the adopted defoamer is tributyl phosphate, the adopted sulphoaluminate cement is 42.5-grade rapid hardening sulphoaluminate cement, and the retarder is citric acid.
example 1
a method for repairing a masonry structure surface, comprising the steps of:
S1, base surface cleaning: removing mortar with lower strength grade or damaged and aged mortar on the repaired base layer structure by using steel wire balls; cleaning up debris, dust and other sundries on structures such as mortar joints, brick surfaces, wall surfaces and the like, and then washing the cleaned debris, dust and other sundries with clean water;
s2, base layer processing: fixing the loosened bricks by using wood wedges, then filling repair mortar in the horizontal mortar joints and the vertical joints, wherein the repair mortar needs to be level with a base surface, and performing subsequent repair work after the mortar is condensed;
s3, wetting treatment: washing the surface of the repaired layer with clear water to make the surface layer structure reach a state of saturation and no clear water on the surface;
S4, coating an interface agent: the polymer modified sulphoaluminate cement paste is used as an interface agent (formed by compounding polyvinyl alcohol rubber powder, sulphoaluminate cement, a defoaming agent and water, wherein the mass of the polyvinyl alcohol rubber powder is 1% of that of the sulphoaluminate cement, the mass of the defoaming agent is 0.2% of that of the sulphoaluminate cement, and the mass of the water is 30% of that of the sulphoaluminate cement), the interface agent is uniformly and flatly coated on a repaired structure surface, and the coating interface agent needs to be uniformly and flatly coated, so that the coating cannot be missed, and the coating thickness is 2 mm.
S5, coating repair mortar: and uniformly and flatly coating the repair mortar on the interface agent, wherein the coating of the repair mortar needs to be flatly and flatly coated in one direction (leftwards), and the coating of the repair mortar is 2cm thick. The repair mortar is polyvinyl alcohol modified sulphoaluminate cement mortar, which is prepared by compounding sulphoaluminate cement, polyvinyl alcohol rubber powder, an antifoaming agent, a polycarboxylic acid water reducing agent, a retarder, river sand and water, wherein the polyvinyl alcohol rubber powder accounts for 1.0% of the weight of the sulphoaluminate cement, the antifoaming agent accounts for 0.2% of the weight of the sulphoaluminate cement, the polycarboxylic acid water reducing agent accounts for 0.3% of the weight of the sulphoaluminate cement, the retarder accounts for 0.1% of the weight of the sulphoaluminate cement, the water accounts for 50% of the weight of the sulphoaluminate cement, the river sand accounts for 3 times of the weight of the sulphoaluminate cement, and the granularity is less than 4.75 mm.
s6, moisture curing: and (3) manually sprinkling water and then covering plastic cloth for natural curing, wherein the curing time is 72h, and the relative humidity of the environment is 60 +/-4% after detection.
Example 2
A method for repairing a masonry structure surface, comprising the steps of:
S1, base surface cleaning: the same as example 1;
S2, base layer processing: fixing the loosened and fallen bricks by using repair mortar, filling the repair mortar in the horizontal mortar joints and the vertical joints after the mortar is condensed, keeping the repair mortar level with the base surface, and performing subsequent repair work after the mortar is condensed;
S3, wetting treatment: washing the surface of the repaired layer with clear water to make the surface layer structure reach a state of saturation and no clear water on the surface;
S4, coating an interface agent: the method is characterized in that polymer modified sulphoaluminate cement paste is used as an interface agent (formed by compounding polyvinyl alcohol rubber powder, sulphoaluminate cement, a defoaming agent and water, wherein the mass of the polyvinyl alcohol rubber powder is 1.5% of that of the sulphoaluminate cement, the mass of the defoaming agent is 0.4% of that of the sulphoaluminate cement, and the mass of the water is 35% of that of the sulphoaluminate cement), the interface agent is uniformly and flatly coated on a repaired structure surface, the interface agent is required to be uniformly and flatly coated, coating omission is avoided, and the coating thickness is 1.5 mm.
S5, coating repair mortar: uniformly and flatly coating the repair mortar on the interface agent, wherein the repair mortar is required to be flatly and flatly coated in one direction (leftward), the thickness of the coated repair mortar is 4cm, the coating is required to be constructed in layers, the coating is firstly carried out for 2cm, and the coating is carried out for 2cm after 3 hours. The repair mortar is polyvinyl alcohol modified sulphoaluminate cement mortar and is formed by compounding sulphoaluminate cement, polyvinyl alcohol rubber powder, an antifoaming agent, a polycarboxylic acid water reducing agent, a retarder, river sand and water, wherein the polyvinyl alcohol rubber powder accounts for 1.5% of the weight of the sulphoaluminate cement, the antifoaming agent accounts for 0.35% of the weight of the sulphoaluminate cement, the polycarboxylic acid water reducing agent accounts for 0.4% of the weight of the sulphoaluminate cement, the retarder accounts for 0.15% of the weight of the sulphoaluminate cement, the water accounts for 45% of the weight of the sulphoaluminate cement, the river sand accounts for 2.8 times of the weight of the sulphoaluminate cement, and the granularity is less than 4.75 mm.
S6, moisture curing: and (3) manually spraying water, covering plastic cloth for natural curing, wherein the curing time is 70h, and the relative humidity of the environment is 60 +/-4% after detection.
Example 3
a method for repairing a masonry structure surface, comprising the steps of:
S1, base surface cleaning: the same as example 1;
S2, base layer processing: the same as example 1;
S3, wetting treatment: the same as example 1;
s4, coating an interface agent: the polymer modified sulphoaluminate cement paste is used as an interface agent (formed by compounding polyvinyl alcohol rubber powder, sulphoaluminate cement, a defoaming agent and water, wherein the mass of the polyvinyl alcohol rubber powder is 0.5 percent of the mass of the sulphoaluminate cement, the mass of the defoaming agent is 0.15 percent of the mass of the sulphoaluminate cement, and the mass of the water is 20 percent of the mass of the sulphoaluminate cement), the interface agent is uniformly and flatly coated on a repaired structure surface, the interface agent is required to be uniformly and flatly coated, coating omission is avoided, and the coating thickness is 2.5 mm.
S5, coating repair mortar: uniformly and flatly coating the repair mortar on the interface agent, wherein the repair mortar is required to be flatly and flatly coated in one direction (rightward), the thickness of the coated repair mortar is 5cm, the coating is required to be constructed in layers, 2cm is coated firstly, 2cm is coated after 3h, the rest 1cm is coated after 3 h. The repair mortar is polyvinyl alcohol modified sulphoaluminate cement mortar, which is prepared by compounding sulphoaluminate cement, polyvinyl alcohol rubber powder, an antifoaming agent, a polycarboxylic acid water reducing agent, a retarder, river sand and water, wherein the polyvinyl alcohol rubber powder accounts for 1.5% of the weight of the sulphoaluminate cement, the antifoaming agent accounts for 0.15% of the weight of the sulphoaluminate cement, the polycarboxylic acid water reducing agent accounts for 0.25% of the weight of the sulphoaluminate cement, the retarder accounts for 0.08% of the weight of the sulphoaluminate cement, the water accounts for 55% of the weight of the sulphoaluminate cement, the river sand accounts for 3.3 times of the weight of the sulphoaluminate cement, and the granularity is less than 4.75 mm.
S6, moisture curing: laying a wet straw mat for natural maintenance for 75h, and detecting that the relative humidity of the environment is 60 +/-4%.
Comparative example 1
a method for repairing a masonry structure surface, which is the same as example 1 except that: step S1 does not include the process of "washing clean with clear water"; the wetting process of step S3 is not included either; the influence of the water absorption and saturation of the surface structure on the repair performance is studied in advance in a targeted manner.
Comparative example 2
A method for repairing a masonry structure surface, which is the same as example 1 except that: not including the wet curing of the step S6, and directly performing natural curing in the air after the step S5 is finished; the influence of specific maintenance means on the repair performance in the later period is researched in a targeted manner.
Comparative example 3
A method for repairing a masonry structure surface, which is the same as example 1 except that: (1) step S1 does not include the process of "washing clean with clear water"; the wetting process of step S3 is not included either; (2) not including the wet curing of the step S6, and directly performing natural curing in the air after the step S5 is finished; the influence of specific maintenance means on the repair performance, which enables the surface layer structure to absorb water in advance and reach saturation and later period, is researched in a targeted manner.
comparative example 4
a method for repairing a masonry structure surface, which is the same as example 1 except that: step S4 was not included, i.e., no interfacial agent was applied, to test the effect of the proposed interfacial agent on repair performance.
Performance testing
Referring to the test method in DL/T5126-2001, Polymer modified Cement mortar test procedure, samples repaired by the methods of examples 1-3 and comparative examples 1-3 were subjected to tensile strength tests (early strength (3d) and late strength (14d)) to examine the bonding between the repaired layer and the repaired infrastructure, and the results are shown in Table 1.
TABLE 1 (Unit: MPa)
as can be seen from the test data in table 1, after the repair process of the present invention is adopted, the bonding force between the repair layer and the repair base layer structure can be significantly improved because: firstly, the invention carries out a special wetting treatment process, and washes the surface of the repaired layer by using clear water to saturate the surface structure, thereby avoiding absorbing water from the repaired mortar. Secondly, a layer of waterproof and impervious interface agent is smeared between the repair mortar and the repair layer, and the polymer modified sulphoaluminate cement paste has the characteristics of waterproofness and impermeability and high condensation speed, and can well prevent the water in the repair mortar from losing to a masonry structure; finally, after the repair construction is finished, the wet maintenance is specially set as a specific later maintenance means, so that the dry cracking and shrinkage of the repair mortar due to the loss of water content are prevented.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method for repairing a masonry structure surface, comprising the steps of:
s1, base surface cleaning: removing the original mortar on the base layer structure to be repaired; cleaning up sundries on structures such as mortar joints, brick surfaces, wall surfaces and the like, and then washing the cleaned objects with clean water;
s2, base layer processing: fixing loose bricks on a base layer structure to be repaired, and filling repair mortar in the horizontal mortar joints and the vertical joints;
S3, wetting treatment: after the repairing mortar is condensed in the step S2, washing the surface of the layer to be repaired with clear water to ensure that the surface layer structure reaches a saturated state and the surface has no clear water;
s4, coating interface agent and repairing mortar: coating the interface agent on the surface of the repair structure; then uniformly and flatly coating the repair mortar on the interface agent; and (5) performing wet curing after the completion to obtain the product.
2. The method for repairing a masonry structure surface as claimed in claim 1, wherein in step S2, the loose bricks are fixed by: fixing by using a wood wedge; or fixing the steel wire rope by mortar in advance, and repairing the steel wire rope after the steel wire rope is firm.
3. the method for repairing the surface of a masonry structure according to claim 2, wherein if the problem of slight loosening of the bricks occurs, the bricks are fixed by using wood wedges; if the problem that the bricks are loosened and fall off occurs, the bricks need to be fixed by using repair mortar, and subsequent repair work is carried out after the mortar is condensed.
4. the method for repairing a masonry structure surface as claimed in claim 1, wherein in step S2, the mortar is filled in the horizontal mortar joints and the vertical mortar joints to be level with the base surface, and the subsequent repairing operation is performed after the mortar is solidified.
5. The method for repairing a masonry structure surface as claimed in claim 1, wherein in step S4, the repair mortar is applied in a direction that is uniform and smooth.
6. The method for repairing a masonry structure surface according to claim 1, wherein in step S4, when the applied repair mortar is more than 3cm thick, the mortar is applied in layers, the interval between layers is about 3h and each layer has a thickness of not more than 2 cm.
7. the method for repairing masonry structure surface according to claim 1, wherein said wet curing time is preferably 70-75 h;
Preferably, the wet curing method comprises: spraying water and then covering plastic cloth; or paving a wet straw mat for curing.
8. The method for repairing the surface of a masonry structure according to any one of claims 1 to 7, wherein the interface agent is polymer modified sulphoaluminate cement paste which is compounded by polyvinyl alcohol glue powder, sulphoaluminate cement, a defoaming agent and water, wherein the polyvinyl alcohol glue powder accounts for 0.5 to 1.5 percent of the weight of the sulphoaluminate cement, the defoaming agent accounts for 0.15 to 0.4 percent of the weight of the sulphoaluminate cement, and the water accounts for 20 to 35 percent of the weight of the sulphoaluminate cement;
Preferably, the interface agent is applied uniformly and smoothly without missing coating, and the thickness is controlled to be between 1.5 and 2.5 mm.
9. The method for repairing the surface of a masonry structure according to any one of claims 1 to 7, wherein the repair mortar is polyvinyl alcohol modified sulphoaluminate cement mortar, which is prepared by compounding sulphoaluminate cement, polyvinyl alcohol glue powder, an antifoaming agent, a polycarboxylic acid water reducing agent, a retarder, river sand and water, wherein the polyvinyl alcohol glue powder is 0.5 to 1.5 percent of the sulphoaluminate cement in mass, the antifoaming agent is 0.15 to 0.35 percent of the sulphoaluminate cement in mass, the polycarboxylic acid water reducing agent is 0.25 to 0.4 percent of the sulphoaluminate cement in mass, the retarder is 0.08 to 0.15 percent of the sulphoaluminate cement in mass, the water is 45 to 55 percent of the sulphoaluminate cement in mass, and the river sand is 2.5 to 3 times of the sulphoaluminate cement in mass, and has a particle size of less than 4.75 mm.
10. Use of a method of repairing masonry structure surfaces according to any one of claims 1 to 9 in the field of construction.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112110703A (en) * | 2020-08-17 | 2020-12-22 | 济南大学 | Waterproof and impervious repair mortar and construction method and application thereof |
| CN114607163A (en) * | 2022-02-25 | 2022-06-10 | 山东海川建设有限公司 | Multifunctional crack repairing equipment for constructional engineering |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2233197A1 (en) * | 1972-07-06 | 1974-01-24 | Wolfer & Goebel Kg | SYNTHETIC RESIN MORTAR FOR REPAIRING ROAD DAMAGE |
| ATA169898A (en) * | 1998-10-12 | 1999-08-15 | Horst Wustinger | POROUS, PARTICULARLY OPEN-POROUS SUPPORT MATERIAL ON SILICATE BASE |
| CN104193406A (en) * | 2014-08-27 | 2014-12-10 | 天津大学 | Repair method of construction engineering reinforced concrete structure |
| CN106007595A (en) * | 2016-05-30 | 2016-10-12 | 江苏名和集团有限公司 | Concrete interface treating agent |
| CN106495609A (en) * | 2016-11-02 | 2017-03-15 | 常州市鼎升环保科技有限公司 | A kind of preparation method of high bond strength concrete interface treating agent |
| CN106812334A (en) * | 2016-12-16 | 2017-06-09 | 国家电网公司 | Concrete framework reinforcement |
| CN106884535A (en) * | 2017-01-20 | 2017-06-23 | 南通苏宝建筑节能科技有限公司 | A kind of construction technology of imitative stone material Self-leveling waterproof mortar |
| CN108179889A (en) * | 2018-01-02 | 2018-06-19 | 上海聚通装饰集团有限公司 | One kind repaiies white washed wall face anticracking hollowing technique |
| CN108952041A (en) * | 2018-09-05 | 2018-12-07 | 上海建工五建集团有限公司 | A kind of external wall Stucco finish structure and its method for repairing and constructing |
| CN109082171A (en) * | 2018-06-08 | 2018-12-25 | 科顺防水科技股份有限公司 | A kind of concrete interface treating agent and preparation method thereof |
-
2019
- 2019-09-20 CN CN201910893505.8A patent/CN110563416A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2233197A1 (en) * | 1972-07-06 | 1974-01-24 | Wolfer & Goebel Kg | SYNTHETIC RESIN MORTAR FOR REPAIRING ROAD DAMAGE |
| ATA169898A (en) * | 1998-10-12 | 1999-08-15 | Horst Wustinger | POROUS, PARTICULARLY OPEN-POROUS SUPPORT MATERIAL ON SILICATE BASE |
| CN104193406A (en) * | 2014-08-27 | 2014-12-10 | 天津大学 | Repair method of construction engineering reinforced concrete structure |
| CN106007595A (en) * | 2016-05-30 | 2016-10-12 | 江苏名和集团有限公司 | Concrete interface treating agent |
| CN106495609A (en) * | 2016-11-02 | 2017-03-15 | 常州市鼎升环保科技有限公司 | A kind of preparation method of high bond strength concrete interface treating agent |
| CN106812334A (en) * | 2016-12-16 | 2017-06-09 | 国家电网公司 | Concrete framework reinforcement |
| CN106884535A (en) * | 2017-01-20 | 2017-06-23 | 南通苏宝建筑节能科技有限公司 | A kind of construction technology of imitative stone material Self-leveling waterproof mortar |
| CN108179889A (en) * | 2018-01-02 | 2018-06-19 | 上海聚通装饰集团有限公司 | One kind repaiies white washed wall face anticracking hollowing technique |
| CN109082171A (en) * | 2018-06-08 | 2018-12-25 | 科顺防水科技股份有限公司 | A kind of concrete interface treating agent and preparation method thereof |
| CN108952041A (en) * | 2018-09-05 | 2018-12-07 | 上海建工五建集团有限公司 | A kind of external wall Stucco finish structure and its method for repairing and constructing |
Non-Patent Citations (1)
| Title |
|---|
| 应惠清: "《土木工程施工 上 第3版》", 31 March 2018, 同济大学出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112110703A (en) * | 2020-08-17 | 2020-12-22 | 济南大学 | Waterproof and impervious repair mortar and construction method and application thereof |
| CN114607163A (en) * | 2022-02-25 | 2022-06-10 | 山东海川建设有限公司 | Multifunctional crack repairing equipment for constructional engineering |
| CN114607163B (en) * | 2022-02-25 | 2024-01-23 | 山东海川建设有限公司 | Multifunctional crack repairing equipment for constructional engineering |
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