CN110593045A - Concrete structure color-difference-free repair construction method - Google Patents
Concrete structure color-difference-free repair construction method Download PDFInfo
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- CN110593045A CN110593045A CN201910718389.6A CN201910718389A CN110593045A CN 110593045 A CN110593045 A CN 110593045A CN 201910718389 A CN201910718389 A CN 201910718389A CN 110593045 A CN110593045 A CN 110593045A
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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
- C04B28/04—Portland cements
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/10—Coherent pavings made in situ made of road-metal and binders of road-metal and cement or like binders
- E01C7/14—Concrete paving
- E01C7/147—Repairing concrete pavings, e.g. joining cracked road sections by dowels, applying a new concrete covering
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention provides a concrete structure color difference-free repair construction method. The method comprises the steps of mixing white cement and gray cement in various proportions under the same conditions on site, coating the white cement and the gray cement on a plate to form a standard color plate, comparing an area to be repaired with the color plate to find out the closest color, mixing a proper amount of gray according to the proportion written corresponding to the closest color to repair chromatic aberration, and maintaining under the same conditions as those of a construction building after repairing to enable the chromatic aberration to be natural. The method has the advantages of simple operation, convenient use, low cost, high accuracy, high repairing efficiency and high quality of the repaired appearance, and all color differences of the construction building under the same working condition of the same project can be repaired by manufacturing the primary color plate.
Description
Technical Field
The invention relates to a concrete structure color difference-free repairing construction method.
Background
The concrete is a mixture prepared by mixing cementing materials (organic, inorganic or organic-inorganic composite), granular aggregates, water and chemical additives and mineral admixtures which need to be added according to a proper proportion, or a composite material (common cementing materials, water, fine aggregates and coarse aggregates which are added with additives and mineral admixtures when needed and are matched according to a proper proportion) with an aggregate structure after hardening, the concrete is one of the most important civil engineering materials in the present generation, the concrete has the characteristics of rich raw materials, low price and simple production process, so the consumption of the concrete is increased, meanwhile, the concrete also has the characteristics of high compressive strength, good durability, wide strength grade range and the like, the characteristics make the application range of the concrete very wide, the concrete is not only used in various civil engineering, but also is used in shipbuilding industry, mechanical industry and ocean development, geothermal engineering, etc., concrete is also an important material. Concrete is a vital building material.
Along with the daily beautification of the living environment of people, the appearance quality problem of concrete is gradually paid attention to by people, on one hand, people decorate on concrete structures, on the other hand, attention is paid to the improvement of the appearance quality of concrete, particularly, the appearance quality of concrete is taken as an important aspect of high-quality engineering construction in large-scale construction projects such as highways, railways and the like at present, technical personnel of a plurality of construction and construction units form a concrete appearance quality patent official customs group, and the technical personnel go deep into a construction site to perform special customs on the color difference problem of concrete. The color difference of the concrete is caused by a plurality of factors, such as the water cement ratio of the concrete, the texture of concrete raw materials, the air temperature, the humidity and the like, among the factors influencing the color of the concrete, the change of at least one factor can cause the change of the color of the concrete, and if the control of the color difference of the concrete is realized by controlling each variable, the control is very difficult, and especially for the construction of buildings with huge surface areas, such as expressways, large bridges and the like, the consistency of the appearance and the color difference is more difficult to ensure. In order to solve the problems, the conventional method generally adopts two modes of concrete raw stock repairing and color difference adjusting agent repairing, when the concrete raw stock is adopted for repairing, a worker needs to perform trial allocation according to experience, the allocation efficiency is low, and time and labor are wasted; the method for repairing the chromatic aberration by integrally coating the concrete chromatic aberration regulator needs to cover a layer on the surface of the concrete to achieve the due effect, and needs to clean the surface of the concrete and use a high-efficiency water reducing agent and the like when in use, so that the method is complex and troublesome in process, high in cost, not suitable for large-scale popularization, and especially not suitable for repairing the chromatic aberration of buildings such as large bridges and the like. There are some repairing processes in the conventional art, such as that disclosed in application publication No. CN107152170A, which mainly includes the following steps: cleaning and cleaning the defects on the concrete surface, performing repairing treatment by putty, matching the special putty by using black cement and white cement, uniformly stirring the mixture by using building glue to form putty, polishing the repaired part by using sand paper or a polishing machine when the special putty is dried to 8 to 9 days, and performing color difference adjusting treatment by using a special concrete adjusting agent. The process is to carry out surface pretreatment and putty treatment before the color difference regulator is used, is suitable for small-batch fine construction, but is not suitable for large-batch concrete color difference repair of large-scale buildings due to complicated steps, complex operation and high cost.
Disclosure of Invention
The invention aims to provide a concrete structure color difference-free repair construction method which is low in cost, convenient to operate and suitable for color difference repair of large-scale building engineering.
The technical scheme of the invention is realized as follows: the concrete structure color difference-free repairing construction method comprises the following steps:
s1, manufacturing a color board, wherein the color board is provided with a plurality of areas N1-Nm coated with concrete, and the edge of the same side of each area is filled with the proportion P1-Pm of white cement to ash cement;
s2, mixing and blending the cement by adopting white cement and ash cement used for construction on a construction site according to the filled proportion P1-Pm on the color plate, and coating the blended mixture on a corresponding area N1-Nm on the color plate;
s3, placing the coated color plate at a construction building of a construction site, and curing the color plate by adopting the same method as the construction building so as to naturally color the mixture on the color plate;
s4, comparing the color of the concrete near the area to be repaired of the construction building with the color of the area N1-Nm on the color plate, and selecting the closest area Nx;
s5, continuously using the Nx area of the color plate to compare with the area to be repaired on the construction building, and marking the area to be repaired, which is close to all the areas to be repaired and has the same color with the Nx area;
s6, mixing and blending white cement and ash cement according to the ratio Px corresponding to Nx, and coating the blended mixture on all marked areas to be repaired in S5 for color difference repair;
s7, repeating S4-S6 to realize color difference repair of all areas to be repaired so as to eliminate color spots caused by color difference of the outer surface of the construction building.
On the basis of the scheme, P1-Pm at least comprises 1/0.5, 1/1, 1/1.5, 1/2, 1/2.5 and 1/3.
On the basis of the scheme, after the construction building is subjected to primary color difference repair, the position of the color difference repair is maintained by the same maintenance method as the construction building so that the repaired position is naturally colored, whether color difference exists in the area nearby the construction building after the color difference repair is observed again after the color difference is naturally colored, and secondary color difference repair is performed on the area with large color difference by adopting the method from S4 to S6.
By adopting the technical scheme, the invention has the beneficial effects that: compared with the traditional technology, the concrete structure color difference-free repair construction method has the advantages of simple operation, convenient use, low cost, high accuracy, high repair efficiency and high appearance quality after repair, and can realize all color difference repair of construction buildings under the same working condition of the same project by manufacturing the color plates for one time; the precision adjustment is very convenient, when a construction building with a large color difference change range is constructed, more areas N1-Nm can be set, so that more proportions P1-Pm can be obtained, a closer color can be found during color difference comparison, and the color difference repairing precision is improved; on the other hand, the regional coating on the color plate is maintained and placed in the same environment and condition as the construction building on the construction site, so that various variables influencing the color of the concrete are consistent, and the more accurate color is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a front view of a color panel for use with the present invention (colors in regions are only schematic);
wherein: 1-color plate, 2-proportion area, 3-coating area.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The concrete embodiment of the concrete structure color difference-free repair construction method comprises the following steps:
firstly, manufacturing a color plate:
selecting a plastic or metal plate with a proper size as a substrate of a color plate 1, then scribing on the substrate, drawing a proportional area 2 and a coating area 3, wherein the proportional area coating areas are arranged in a one-to-one correspondence manner, a plurality of areas N1-Nm coated with concrete are arranged on the color plate, in the embodiment, m =6 is arranged, namely, 6 areas are arranged, the proportion P1-Pm of white cement to ash cement is correspondingly filled in the same side edge of each area, in the embodiment, the proportion corresponding to P1-Pm is respectively 1/0.5, 1/1, 1/1.5, 1/2, 1/2.5 and 1/3, the scheme is used for small construction buildings with low color difference requirements, and for large construction buildings, especially for construction buildings with large color difference change range and high color difference repair quality requirements, the number of m should be correspondingly increased, the change between two adjacent proportions is reduced so as to make the color difference closer when compared (see the following);
secondly, coating the corresponding area of the color plate:
mixing and blending the white cement and the ash cement used for construction on a construction site according to the filled proportion P1-Pm on the color plate, and coating the blended mixture on a corresponding area N1-Nm on the color plate;
then, curing and natural coloring of the coating area:
placing the coated color plate at a construction building of a construction site, and maintaining the color plate by adopting the same method as the construction building so as to naturally color the mixture on the color plate, so that the purpose is to ensure that the color forming condition of a coating area is basically consistent with that of the construction building, so that the interference of variables is reduced, and the color forming is closer to that of the construction building;
thereafter, use of the color plate:
comparing the color of the concrete near the area to be repaired of the construction building with the area N1-Nm on the color plate, and selecting the closest area Nx; continuously comparing the color of the Nx area of the color plate with the color of the area to be repaired on the construction building, and marking the area to be repaired, which is close to the area to be repaired and has the same color as the Nx area, so that color spots of the same color can be repaired at one time, the problem of low efficiency caused by frequently preparing plaster in a corresponding proportion is reduced, and the repairing efficiency is improved; mixing and blending the white cement and the ash cement according to the ratio Px corresponding to the Nx, and coating the blended mixture on all marked areas to be repaired in S5 for color difference repair; and repeating the steps used by the color plates to realize color difference repair of all areas to be repaired so as to eliminate color spots caused by color difference of the outer surface of the construction building.
Further, in order to prevent some uncontrollable factors, such as temporary rainfall and the like from influencing the color after the color difference repair, the supplementary repair can be carried out after the first repair, namely, the repaired area is checked again, the repair is carried out again when the repair is needed until the color difference reaches the set standard, specifically, after the color difference repair is completed for one time for the construction building, the position for the color difference repair is maintained by the same maintenance method as the construction building so that the repaired position is naturally colored, whether the color difference exists in the nearby area after the color difference repair of the construction building is observed again after the color difference is naturally colored, and the color difference is repaired for the second time by adopting the S4-S6 for the area with large color difference.
Compared with the traditional technology, the concrete structure color difference-free repair construction method has the advantages of simple operation, convenient use, low cost, high accuracy, high repair efficiency and high appearance quality after repair, and can realize all color difference repair of construction buildings under the same working condition of the same project by manufacturing the color plates for one time; the precision adjustment is very convenient, when a construction building with a large color difference change range is constructed, more areas N1-Nm can be set, so that more proportions P1-Pm can be obtained, a closer color can be found during color difference comparison, and the color difference repairing precision is improved; on the other hand, the regional coating on the color plate is maintained and placed in the same environment and condition as the construction building on the construction site, so that various variables influencing the color of the concrete are consistent, and the more accurate color is ensured.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (3)
1. The concrete structure color difference-free repairing construction method is characterized by comprising the following steps:
s1, manufacturing a color board, wherein the color board is provided with a plurality of areas N1-Nm coated with concrete, and the edge of the same side of each area is filled with the proportion P1-Pm of white cement to ash cement;
s2, mixing and blending the cement by adopting white cement and ash cement used for construction on a construction site according to the filled proportion P1-Pm on the color plate, and coating the blended mixture on a corresponding area N1-Nm on the color plate;
s3, placing the coated color plate at a construction building of a construction site, and curing the color plate by adopting the same method as the construction building so as to naturally color the mixture on the color plate;
s4, comparing the color of the concrete near the area to be repaired of the construction building with the color of the area N1-Nm on the color plate, and selecting the closest area Nx;
s5, continuously using the Nx area of the color plate to compare with the area to be repaired on the construction building, and marking the area to be repaired, which is close to all the areas to be repaired and has the same color with the Nx area;
s6, mixing and blending white cement and ash cement according to the ratio Px corresponding to Nx, and coating the blended mixture on all marked areas to be repaired in S5 for color difference repair;
s7, repeating S4-S6 to realize color difference repair of all areas to be repaired so as to eliminate color spots caused by color difference of the outer surface of the construction building.
2. The color difference-free repair construction method of the concrete structure according to claim 1, wherein P1-Pm at least comprises 1/0.5, 1/1, 1/1.5, 1/2, 1/2.5 and 1/3.
3. The method of repairing a concrete structure without color difference according to claim 1 or 2, wherein after the first time of color difference repair is performed on the construction building, the position of the color difference repair is maintained by the same maintenance method as the construction building so that the repaired position is naturally colored, after the natural color is formed, whether the color difference exists in the vicinity of the construction building after the color difference repair is observed again, and the second time of color difference repair is performed on the area with large color difference by using the above-mentioned method of S4-S6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910718389.6A CN110593045A (en) | 2019-08-05 | 2019-08-05 | Concrete structure color-difference-free repair construction method |
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| CN201910718389.6A CN110593045A (en) | 2019-08-05 | 2019-08-05 | Concrete structure color-difference-free repair construction method |
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Cited By (4)
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| CN111622522A (en) * | 2020-06-08 | 2020-09-04 | 中交一公局集团有限公司 | Concrete structure repairing method |
| CN114778453A (en) * | 2021-12-31 | 2022-07-22 | 南京华鼎纳米技术研究院有限公司 | Paper restoration method based on paper luminosity |
| CN114809381A (en) * | 2022-04-21 | 2022-07-29 | 陕西建工集团股份有限公司 | Construction method of fair-faced concrete |
| CN115324374A (en) * | 2022-08-19 | 2022-11-11 | 中国二十冶集团有限公司 | Concrete appearance defect repairing method |
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Cited By (6)
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| CN114778453A (en) * | 2021-12-31 | 2022-07-22 | 南京华鼎纳米技术研究院有限公司 | Paper restoration method based on paper luminosity |
| CN114809381A (en) * | 2022-04-21 | 2022-07-29 | 陕西建工集团股份有限公司 | Construction method of fair-faced concrete |
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| CN115324374A (en) * | 2022-08-19 | 2022-11-11 | 中国二十冶集团有限公司 | Concrete appearance defect repairing method |
| CN115324374B (en) * | 2022-08-19 | 2023-11-21 | 中国二十冶集团有限公司 | Method for repairing appearance defects of concrete |
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Address after: No.267, 15th Street, Jingkai, Zhengzhou, Henan Province, 450000 Applicant after: CHINA CONSTRUCTION SEVENTH ENGINEERING DIVISION Corp.,Ltd. Address before: 450000 No. 116 Chengdong Road, Jinshui District, Henan, Zhengzhou Applicant before: CHINA CONSTRUCTION SEVENTH ENGINEERING DIVISION Corp.,Ltd. |
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Application publication date: 20191220 |