CN110116451B - Concrete surface treatment process - Google Patents
Concrete surface treatment process Download PDFInfo
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- CN110116451B CN110116451B CN201910263539.9A CN201910263539A CN110116451B CN 110116451 B CN110116451 B CN 110116451B CN 201910263539 A CN201910263539 A CN 201910263539A CN 110116451 B CN110116451 B CN 110116451B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/04—Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/08—Apparatus or processes for treating or working the shaped or preshaped articles for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
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- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
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- Mechanical Engineering (AREA)
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Abstract
The invention discloses a concrete surface treatment process, which belongs to the field of building concrete and comprises the following steps: concrete base layer solidifies the shaping, the base layer surface is polished, concrete surface cleaning, the surface priming paint is brushed, top layer mortar is paintd, the equal layer of mortar magnetism is inhaled and is paintd, inhale the modular apparatus and install in waiting to process concrete base layer and keep away from surface one side, start magnetism and inhale modular apparatus, and use the board of equalling to carry out the flat-plastering to top layer mortar by the staff, can realize adjusting the top layer mortar composition that paints the concrete surface, improve the solidification shaping speed of top layer mortar, the corresponding magnetism of cooperation simultaneously inhales modular apparatus, make top layer mortar can be fast and smoothly at concrete surface tiling, reduce the drippage of top layer mortar after paining, improve the roughness on concrete surface after the shaping.
Description
Technical Field
The invention relates to the field of building concrete, in particular to a concrete surface treatment process.
Background
The concrete surface treatment is a method for treating the surface of concrete, and a concrete surface base material is subjected to weathering corrosion, has rough and porous surface and low surface strength, and can be polluted by oil stains and salt. The surface of the coating is distributed with pores containing water and alkaline substances, and if the coating is directly coated without treatment, the coating has poor adhesion and can generate defects of bubbling, cracking, whitening and even delamination and the like. In order to avoid the above problems and to prolong the service life of the coating layer, it is necessary to control the water content of the base material and perform an accurate surface treatment.
In the common treatment process of the concrete surface, generally, firstly, oil removal treatment is carried out, generally, detergent is used for cleaning oil stains, then fresh water is used for cleaning a surface layer until the PH value is neutral, if the oil stains on the surface of a concrete base material seriously permeate into the concrete, hot alkali impregnation is adopted, fresh water is used for washing, the oil removal effect is checked, clear water is dripped on the surface of the concrete, the wetting and spreading states of the concrete are observed, and if water drops form a cylindrical shape, the oil stains exist; if the water film is uniform, indicating that the surface is free from oil, the surface of the concrete is polished by using an electric or starting polishing tool or using a sand blasting device, surface laitance and a weak medium surface layer can be effectively removed, and dust on the surface is blown off by clean compressed air, preferably a vacuum cleaner.
The treatment of concrete surface cracks generally includes surface painting and surface patching, and fills up various cracks to prevent water from permeating and block water leakage gaps. In order to reduce the cracks on the concrete surface, save the time and labor for concrete surface treatment and improve the flatness of the concrete surface, a reasonable technical scheme needs to be found to solve the problems, and the Chinese patent publication No. CN104690808A discloses a concrete surface treatment technology for buildings, which is mainly used for solving the problem of the smoothness of the concrete surface before the prefabricated sandwich reinforced concrete slab is formed and saving the time and labor for concrete surface treatment. Covering the mould with the pulp collecting plate embedded with the plastic plate, and taking down the pulp collecting plate after the steam curing is finished. The problem of concrete cracks caused by the fact that the surface of the concrete plate is not smooth is avoided, hidden dangers such as water leakage of the concrete plate are reduced, and the slurry collecting plate can be used repeatedly after being cleaned up. When the surface of the concrete is determined to be absolutely flat and smooth, manual leveling and trowelling are replaced, the trowelling time of the concrete before dehydration and initial setting is saved, and time guarantee is provided for an automatic assembly line of the component.
Although the technical proposal can better solve the problem of concrete cracks caused by the unsmooth surface of the concrete slab, reduces the hidden troubles of water leakage of the concrete slab and the like, and the slurry collecting plate can be reused after being cleaned up, but in the process of treating the concrete surface, because the surface layer mortar coated on the concrete surface is in a fluid state, the concrete surface needs to be shaped for a period of time before solidification, and the concrete surface has a certain inclination angle in the period of time, or the concrete surface is in a state of being vertical to the ground, so after the surface mortar is coated on the concrete surface, part of mortar has the tendency of dripping downwards under the action of gravity, and part of mortar falls off from the surface of concrete, therefore, the coating thickness of partial surface mortar is reduced, and even partial mortar gathers in one position, so that the surface mortar is uneven, and the flatness of the surface of the formed concrete is influenced.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a concrete surface treatment process which can adjust the components of surface mortar smeared on the surface of concrete, improve the solidification and forming speed of the surface mortar, and meanwhile, by matching with corresponding magnetic attraction forming equipment, the surface mortar can be quickly and flatly paved on the surface of the concrete, the dripping of the surface mortar after smearing is reduced, and the flatness of the formed concrete surface is improved.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A concrete surface treatment process comprises the following steps:
step one, solidifying and forming a concrete base layer, standing and drying the concrete base layer after the pouring construction of the concrete surface is finished, and watering and curing the concrete base layer by constructors after the concrete surface is solidified;
polishing the outer surface of the base layer, and after cleaning the concrete base layer, firstly polishing the outer surface of the concrete by a constructor by using a polishing machine and a wire brush;
cleaning the surface of the concrete, cleaning the outer surface of the solidified and molded concrete base layer, cleaning the concrete base layer by using a flexible brush, and timely cleaning floating dust and cement slag after cleaning by using a dust collector;
coating surface primer, namely coating the primer on the outer surface of the cleaned concrete base layer by using flexible bristles to completely cover the primer on the outer surface of the concrete base layer to be treated;
coating surface mortar, wherein a constructor uniformly coats the surface mortar on the outer surface of the concrete base layer by using a trowel, and the thickness of the coated surface mortar is controlled to be paved on the outer surface of the concrete;
step six, magnetically sucking the uniform layer of mortar and smearing, installing magnetic suction shaping equipment on one side, far away from the outer surface, of the concrete base layer to be processed, starting the magnetic suction shaping equipment, and using a uniform mortar board to smear surface mortar by workers, so that the components of the surface mortar smeared on the concrete surface can be adjusted, the solidification and forming speed of the surface mortar is improved, and meanwhile, the surface mortar can be quickly and flatly tiled on the concrete surface by matching with the corresponding magnetic suction shaping equipment, the dripping of the surface mortar after smearing is reduced, and the flatness of the formed concrete surface is improved;
in the fifth step, in the process of smearing the surface mortar, the main component of the used surface mortar is a mortar base material, and the mortar base material comprises a silicofluoride and a wetting agent;
the main components of the surface mortar also comprise a carrier fluid and magnet particles, the main components of the magnet particles are ferroferric oxide particles and cobalt-nickel alloy particles, the carrier fluid contains a surfactant, and the carrier fluid and the magnet particles are selected to be matched with magnetic attraction shaping equipment, so that the surface mortar mixed with the magnet particles is attached to the surface layer of the concrete more closely;
the surface mortar also contains quick-setting particles, the main component of the quick-setting particles is a silicon hardening agent, and the applied surface mortar is convenient to accelerate solidification and molding through the silicon hardening agent added into the surface mortar;
in the first step, in the drying process of the concrete base layer, after the pouring construction is finished, the surface of the concrete is covered and watered for maintenance within twelve hours, the covering is made of a plastic film or a gunny bag sheet, and the plastic film or the gunny bag sheet is covered on the surface of the concrete, so that the hardening speed of the concrete is accelerated, and the strength of the concrete is improved;
after the concrete surface is cleaned, judging by constructors according to the alkaline condition of the concrete surface, if the concrete surface has higher alkalinity, cleaning the concrete surface, then pickling the surface of the concrete base layer by using a dilute acid solution, and pickling the concrete surface to remove impurities in concrete capillary holes and remove partial components with weak bonding force;
the diluted acid solution for pickling the outer surface of the concrete base layer uses the diluted hydrochloric acid solution with the solution mass fraction of three percent, the pickled part is cleaned by using clear water after pickling, and the influence of the pickling solution on surface mortar used in subsequent construction is reduced conveniently by cleaning the concrete surface after pickling with the clear water;
in the concrete surface cleaning process of the third step, the used dust collector is a vacuum dust collector, in the dust collection process of floating dust and cement slag, part of the firmly adhered surface cement slag is matched with an air compressor for blowing and cleaning, the floating dust and the cement slag adhered to the outer surface of the concrete base layer are conveniently removed through the matching of the air compressor and the vacuum dust collector, and the influence on subsequent coating of surface mortar is reduced;
the magnetic attraction shaping equipment is fixedly connected with a magnetic conduction equalizing plate close to one end of the concrete base layer, the magnetic conduction equalizing plate comprises glass fiber cloth, epoxy resin, iron powder and an additive, and a relatively flat magnetic attraction layer is conveniently formed on the outer surface of the concrete base layer through the magnetic conduction equalizing plate additionally arranged outside the magnetic attraction shaping equipment, so that surface layer mortar can be better and flatly paved on the outer surface of the concrete base layer;
in the six-step mortar magnetic attraction uniform-layer smearing process, a worker uses the uniform paddle board to smear surface layer mortar, the middle point of the uniform paddle board is used as the center of a circle, the uniform paddle board is rotated to smear the surface layer mortar, the surface layer mortar is smeared through the uniform paddle board, and the surface layer mortar is conveniently matched with the magnetic attraction shaping equipment.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) this scheme can realize adjusting the top layer mortar composition that paints to concrete surface, improves the solidification shaping speed of top layer mortar, and the corresponding magnetism of cooperation simultaneously inhales modular system, makes top layer mortar can be fast and levelly and smoothly tile at concrete surface, reduces the drippage of top layer mortar after paining, improves the roughness on shaping back concrete surface.
(2) The main components of the surface mortar also comprise a carrier fluid and magnet particles, the main components of the magnet particles are ferroferric oxide particles and cobalt-nickel alloy particles, the carrier fluid contains a surfactant, and the carrier fluid and the magnet particles are selected to be matched with magnetic attraction shaping equipment, so that the surface mortar mixed with the magnet particles is more closely attached to the surface layer of the concrete.
(3) The surface mortar also contains quick-setting particles, the main component of the quick-setting particles is a silicon hardening agent, and the applied surface mortar is convenient to accelerate solidification and molding through the silicon hardening agent added in the surface mortar.
(4) And step one, in the drying process of the concrete base layer, after the pouring construction is finished, covering and watering the surface of the concrete for maintenance within twelve hours, wherein the covering is made of a plastic film or a gunny bag sheet, and the plastic film or the gunny bag sheet is covered on the surface of the concrete, so that the hardening speed of the concrete is accelerated, and the strength of the concrete is improved.
(5) And step three, after the concrete surface is cleaned, judging by constructors according to the alkaline condition of the concrete surface, if the concrete surface has high alkalinity, cleaning the concrete surface, then pickling the surface of the concrete base layer by using a dilute acid solution, and pickling the concrete surface to remove impurities in concrete capillary holes conveniently and remove partial components with low adhesive force.
(6) The dilute acid solution for pickling the outer surface of the concrete base layer uses the dilute hydrochloric acid solution with the solution mass fraction of three percent, the pickled part is cleaned by using clear water after pickling, and the concrete surface after pickling is cleaned by using the clear water, so that the influence of the pickling solution on surface mortar used in subsequent construction is reduced.
(7) And in the concrete surface cleaning process of the third step, the used dust collector is a vacuum dust collector, in the dust collection process of floating dust and cement slag, part of the surface cement slag which is tightly adhered is matched and cleaned by air blowing of an air compressor, and the floating dust and the cement slag adhered to the outer surface of the concrete base layer are conveniently removed by matching of the air compressor and the vacuum dust collector, so that the influence on subsequent coating of surface mortar is reduced.
(8) Magnetism is inhaled modular system and is close to concrete substrate one end fixedly connected with magnetic conduction and is all organized the board, and the equal board composition of magnetic conduction includes glass fiber cloth, epoxy, iron powder and additive, inhales the equal board of magnetic conduction that the modular system outside was add through inhaling, is convenient for form comparatively level and smooth magnetism layer of inhaling at the surface of concrete substrate, makes top layer mortar can better pave in concrete substrate surface.
(9) In the six-step mortar magnetic attraction uniform-layer smearing process, a worker uses the uniform paddle board to smear surface layer mortar, the middle point of the uniform paddle board is used as the center of a circle, the uniform paddle board is rotated to smear the surface layer mortar, and the surface layer mortar is smeared through the uniform paddle board, so that the surface layer mortar is matched with the magnetic attraction shaping equipment better.
Drawings
FIG. 1 is a main process flow diagram of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise specifically stated or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are used in a broad sense, and for example, "connected" may be a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements.
Example 1:
referring to fig. 1, a concrete surface treatment process includes the following steps:
step one, solidifying and forming a concrete base layer, standing and drying the concrete base layer after the pouring construction of the concrete surface is finished, and watering and curing the concrete base layer by constructors after the concrete surface is solidified;
polishing the outer surface of the base layer, and after cleaning the concrete base layer, firstly polishing the outer surface of the concrete by a constructor by using a polishing machine and a wire brush;
cleaning the surface of the concrete, cleaning the outer surface of the solidified and molded concrete base layer, cleaning the concrete base layer by using a flexible brush, and timely cleaning floating dust and cement slag after cleaning by using a dust collector;
coating surface primer, namely coating the primer on the outer surface of the cleaned concrete base layer by using flexible bristles to completely cover the primer on the outer surface of the concrete base layer to be treated;
coating surface mortar, wherein a constructor uniformly coats the surface mortar on the outer surface of the concrete base layer by using a trowel, and the thickness of the coated surface mortar is controlled to be paved on the outer surface of the concrete;
step six, the mortar magnetism is inhaled the equipartition layer and is paintd, inhale the modular apparatus and install in the concrete base layer of treating processing and keep away from surface one side, start magnetism and inhale modular apparatus, and use the homogenate board to smooth the surface layer mortar by the staff, can realize adjusting the surface layer mortar composition that paints to the concrete surface, improve the solidification shaping speed of surface layer mortar, cooperate corresponding magnetism simultaneously and inhale modular apparatus, make the surface layer mortar can be fast and smoothly tile at the concrete surface, reduce the drippage of surface layer mortar after paining, improve the roughness on shaping back concrete surface.
And fifthly, in the process of coating the surface mortar, the main component of the used surface mortar is a mortar base material, and the mortar base material comprises silicofluoride and a wetting agent.
The main components of the surface mortar also comprise a carrier fluid and magnet particles, the main components of the magnet particles are ferroferric oxide particles and cobalt-nickel alloy particles, the carrier fluid contains a surfactant, and the carrier fluid and the magnet particles are selected to be matched with magnetic attraction shaping equipment, so that the surface mortar mixed with the magnet particles is more closely attached to the surface layer of the concrete.
The surface mortar also contains quick-setting particles, the main component of the quick-setting particles is a silicon hardening agent, and the applied surface mortar is convenient to accelerate solidification and molding through the silicon hardening agent added in the surface mortar.
And step one, in the drying process of the concrete base layer, after the pouring construction is finished, covering and watering the surface of the concrete for maintenance within twelve hours, wherein the covering is made of a plastic film or a gunny bag sheet, and the plastic film or the gunny bag sheet is covered on the surface of the concrete, so that the hardening speed of the concrete is accelerated, and the strength of the concrete is improved.
And step three, after the concrete surface is cleaned, judging by constructors according to the alkaline condition of the concrete surface, if the concrete surface has high alkalinity, cleaning the concrete surface, then pickling the surface of the concrete base layer by using a dilute acid solution, and pickling the concrete surface to remove impurities in concrete capillary holes conveniently and remove partial components with low adhesive force.
The dilute acid solution for pickling the outer surface of the concrete base layer uses the dilute hydrochloric acid solution with the solution mass fraction of three percent, the pickled part is cleaned by using clear water after pickling, and the concrete surface after pickling is cleaned by using the clear water, so that the influence of the pickling solution on surface mortar used in subsequent construction is reduced.
And in the concrete surface cleaning process of the third step, the used dust collector is a vacuum dust collector, in the dust collection process of floating dust and cement slag, part of the surface cement slag which is tightly adhered is matched and cleaned by air blowing of an air compressor, and the floating dust and the cement slag adhered to the outer surface of the concrete base layer are conveniently removed by matching of the air compressor and the vacuum dust collector, so that the influence on subsequent coating of surface mortar is reduced.
Magnetism is inhaled modular system and is close to concrete substrate one end fixedly connected with magnetic conduction and is all organized the board, and the equal board composition of magnetic conduction includes glass fiber cloth, epoxy, iron powder and additive, inhales the equal board of magnetic conduction that the modular system outside was add through inhaling, is convenient for form comparatively level and smooth magnetism layer of inhaling at the surface of concrete substrate, makes top layer mortar can better pave in concrete substrate surface.
In the six-step mortar magnetic attraction uniform-layer smearing process, a worker uses the uniform paddle board to smear surface layer mortar, the middle point of the uniform paddle board is used as the center of a circle, the uniform paddle board is rotated to smear the surface layer mortar, and the surface layer mortar is smeared through the uniform paddle board, so that the surface layer mortar is matched with the magnetic attraction shaping equipment better.
The invention can realize the adjustment of the components of the surface mortar smeared on the concrete surface, improve the solidification forming speed of the surface mortar, and simultaneously, by matching with corresponding magnetic suction shaping equipment, the surface mortar can be quickly and flatly paved on the concrete surface, the dripping of the surface mortar after smearing is reduced, and the flatness of the formed concrete surface is improved.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (1)
1. A concrete surface treatment process is characterized in that: the method comprises the following steps:
step one, solidifying and forming a concrete base layer, standing and drying the concrete base layer after the pouring construction of the concrete surface is finished, and watering and curing the concrete base layer by constructors after the concrete surface is solidified;
polishing the outer surface of the base layer, and after cleaning the concrete base layer, firstly polishing the outer surface of the concrete by a constructor by using a polishing machine and a wire brush;
cleaning the surface of the concrete, cleaning the outer surface of the solidified and molded concrete base layer, cleaning the concrete base layer by using a flexible brush, and timely cleaning floating dust and cement slag after cleaning by using a dust collector;
coating surface primer, namely coating the primer on the outer surface of the cleaned concrete base layer by using flexible bristles to completely cover the primer on the outer surface of the concrete base layer to be treated;
coating surface mortar, wherein a constructor uniformly coats the surface mortar on the outer surface of the concrete base layer by using a trowel, and the thickness of the coated surface mortar is controlled to be paved on the outer surface of the concrete;
step six, smearing the mortar magnetic uniform layer, installing magnetic suction shaping equipment on one side, far away from the outer surface, of the concrete base layer to be processed, starting the magnetic suction shaping equipment, and using a uniform mortar board by workers to smear the surface layer mortar;
in the fifth step, in the process of smearing the surface mortar, the main component of the used surface mortar is a mortar base material, and the mortar base material comprises a silicofluoride and a wetting agent;
the main components of the surface mortar also comprise carrier fluid and magnet particles, the main components of the magnet particles are ferroferric oxide particles and cobalt-nickel alloy particles, and the carrier fluid contains a surfactant;
the surface mortar also contains quick-setting particles, and the main component of the quick-setting particles is a silicon hardening agent;
in the step one, in the drying process of the concrete base layer, after the pouring construction is finished, covering the concrete surface within twelve hours, watering and curing the covering material, and selecting a plastic film or a gunny bag sheet;
after the concrete surface is cleaned in the third step, the constructor judges the concrete surface according to the alkaline condition of the concrete surface, if the concrete surface has higher alkalinity, the acid cleaning is carried out on the surface of the concrete base layer by using dilute acid solution after the concrete surface is cleaned;
the dilute acid solution for pickling the outer surface of the concrete base layer is a dilute hydrochloric acid solution with the solution mass fraction of three percent, and the pickled part is cleaned by using clean water after pickling;
in the concrete surface cleaning process of the third step, the used dust collector is a vacuum dust collector, and in the dust collection process of floating dust and cement slag, part of the firmly adhered surface cement slag is blown and cleaned by an air compressor in a matching way;
the magnetic attraction shaping equipment is fixedly connected with a magnetic conduction equalizing plate close to one end of the concrete base layer, and the magnetic conduction equalizing plate comprises glass fiber cloth, epoxy resin, iron powder and an additive;
in the six-step mortar magnetic uniform layer smearing process, a worker uses the uniform paddle board to smear surface layer mortar, the center point of the uniform paddle board is used as the circle center, and the uniform paddle board is rotated to smear the surface layer mortar.
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| KR100713162B1 (en) * | 2005-12-23 | 2007-05-02 | 이미애 | The footpath block making method which has the grinding part to form the projection part in the surface |
| CN202248678U (en) * | 2011-07-27 | 2012-05-30 | 佛山欧神诺陶瓷股份有限公司 | Soft magnetic ceramic brick |
| CN204738487U (en) * | 2015-05-14 | 2015-11-04 | 深圳市天行骏实业有限公司 | Formula composite board is inhaled to magnetism |
| CN206801064U (en) * | 2017-05-27 | 2017-12-26 | 厦门华蔚物联网科技有限公司 | Mortar is uniformly put on to brick vertical plane and the starching machine of upper surface |
| CN107035103A (en) * | 2017-06-20 | 2017-08-11 | 中国华西企业有限公司 | A kind of cement floor construction method |
| CN107327156B (en) * | 2017-08-24 | 2020-05-19 | 上海吉丽仕化工有限公司 | Concrete surface treatment method before coating protective coating |
| CN108374538A (en) * | 2018-02-28 | 2018-08-07 | 深圳新岩景观艺术有限公司 | The preparation method of anti-skidding pond mattess |
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