CN110981348A - Precast cement-resin colored concrete slab - Google Patents
Precast cement-resin colored concrete slab Download PDFInfo
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- CN110981348A CN110981348A CN201911308682.1A CN201911308682A CN110981348A CN 110981348 A CN110981348 A CN 110981348A CN 201911308682 A CN201911308682 A CN 201911308682A CN 110981348 A CN110981348 A CN 110981348A
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- cement
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- precast
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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
-
- 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
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
- B28B1/087—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould
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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 & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a precast cement-resin color concrete slab, which comprises cement, waterborne epoxy resin, aggregate, a defoaming agent, pigment, PVA fiber, a water reducing agent and water according to a formula; according to the precast cement-resin colored concrete slab, the water-based epoxy resin emulsion and the cement concrete material are combined together through a reasonable concrete proportion to form a new material, so that the cement concrete has high strength, high wear resistance and high durability, the problem of alkali return of a cement base material can be effectively solved, and the cement concrete slab can be used as decorative materials such as indoor decorative wall boards, indoor floor tiles, outer wall decorative plates, kitchen and bathroom table boards, window board plates and the like.
Description
Technical Field
The invention belongs to the technical field of concrete slabs, and particularly relates to a precast cement-resin colored concrete slab.
Background
At present, the decoration of the ground and the inner and outer wall surfaces and the decoration of kitchen, toilet and windowsill surfaces of a plurality of domestic large public buildings and high-grade private residences are mostly made of natural stone or resin plates; the natural stone slab has natural texture, high strength and high hardness, has unique design capability and visual value of the color of the appearance material, can be polished and repaired again after being scratched on a table top and a floor, and is durable in use; the resin plate is easy to form and manufacture, has good corrosion resistance, is fireproof and is easy to clean;
natural stone also has its own disadvantages: if sealing treatment is required regularly, the capacity of resisting chemical products and stains is limited, the corrosion and the pollution are easy, the material cost and the installation cost are high, the popularization is not easy, and the actual products have some differences from samples and have certain radiation; the resin plate is easy to process, contains more chemical components, such as harmful substances including styrene and the like, has pungent smell, and can generate adverse effects on a human body after being volatilized for a long time, so that the precast cement-resin color concrete plate is provided.
Disclosure of Invention
The invention mainly aims to provide a precast cement-resin colored concrete slab which can effectively solve the problems in the background art.
In order to achieve the purpose, the invention adopts the technical scheme that:
the formula of the precast cement-resin color concrete slab consists of cement, water-based epoxy resin, aggregate, a defoaming agent, pigment, PVA fiber, a water reducing agent and water, wherein the raw materials comprise the following components in percentage by mass: water-based epoxy resin: aggregate: defoaming agent: pigment: PVA fiber: water reducing agent: water = (600- > 1000): (30-100): (800-1200): (3-10): (20-50): (1-3): (5-10): (150-180).
Preferably, the method for preparing the precast cement-resin colored concrete slab comprises the following steps:
firstly, paving a mold on a mold table of an automatic production line, cleaning the mold, and coating demolding oil to obtain a prepared mold; .
Step two, sequentially adding cement, water-based epoxy resin, aggregate, a defoaming agent, pigment and PVA fiber into a stirrer according to the basic mixing proportion of the raw materials, stirring for 1min, then adding water and a water reducing agent into the stirrer, stirring for 5min, and then pouring out to obtain the slurry of the resin color concrete plate;
step three, pouring the slurry of the resin color concrete plate obtained in the step two, wherein the pouring is finished by a material distributor, the pouring thickness is 15-25mm, then the slurry is vibrated by a mould table vibrator to discharge air bubbles, then the air bubbles are eliminated by a defoaming roller through rolling brushing again, after initial setting, rough surface treatment is carried out, a film is covered on the surface of the rough surface, then the rough surface is sent into a steam curing kiln for curing, the curing time is not less than 12 hours, the temperature of the curing kiln is 60 ℃, the relative humidity is not less than RH90%, and a compression-resistant test block under the same condition is manufactured in each production batch to obtain the resin color concrete plate under curing;
taking the obtained resin color concrete plate for curing out of the kiln, determining that the compressive strength reaches 100% of the designed strength, dismantling the mold, and then grinding and polishing the plate by an automatic production line and then sending the plate into a finished product area for packaging; the manufacture of the resin color concrete slab can be completed; and finally obtaining the resin color concrete plate.
Preferably, the reference mixing ratio of each component is cement: water-based epoxy resin: aggregate: defoaming agent: pigment: PVA fiber: water reducing agent: water =921:37:1016:5.5:27:2:7.8: 161.
Preferably, the cement is portland cement, ordinary portland cement and white portland cement, and the 28-day strength of the cement is not lower than 42.5 MPa.
Preferably, the aqueous epoxy resin is a mixture of an aqueous epoxy resin emulsion and a curing agent.
Preferably, the aggregate may comprise inorganic materials such as quartz sand, glass sand, colored glass stone, fine stone, etc., and has a particle size of 0 to 6 mm.
Preferably, the defoaming agent is concrete or cement mortar defoaming agent powder.
Preferably, the pigment is iron oxide series concrete pigment or color paste.
Preferably, the PVA fiber is PVA fiber filament with the length of 10-20 mm; the water reducing agent is a concrete high-performance water reducing agent, and the water reducing rate is more than 25%.
Compared with the prior art, the invention has the following beneficial effects: the precast cement-resin color concrete slab is formed by combining a water-based epoxy resin emulsion and a cement concrete material through a reasonable concrete proportion, and the water-based resin emulsion is a pure water product, is harmless and pollution-free and does not generate chemical reaction with a cement base material; after the water-based resin emulsion is added into the cement-based concrete material, the resin can effectively fill air bubbles and a micro-tube structure in the concrete, so that the material can form a very good waterproof effect, has high strength, high wear resistance and high durability of the cement concrete, and can effectively solve the problem of alkali return of a cement base material; meanwhile, the precast cement-resin color concrete slab is manufactured by using a mould, the thickness and the size can be manufactured according to the requirement, the shape can be a rectangular or other polygonal plate, the manufacturing is simple, the materials are convenient to obtain, the cost is low, and the popularization is easy; the precast cement-resin color concrete plate has high brightness and excellent decorative effect, can be used as decorative materials such as indoor decorative wall plates, indoor floor tiles, outer wall decorative plates, kitchen and bathroom tables, window boards and the like, and has wide application; the precast cement-resin colored concrete slab is a cement-based inorganic material, can use waste glass, stones and other materials as aggregates, and is environment-friendly and nontoxic.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Examples
During preparation, the formula of the precast cement-resin colored concrete slab consists of cement, water-based epoxy resin, aggregate, a defoaming agent, pigment, PVA (polyvinyl acetate) fiber, a water reducing agent and water, wherein the reference mixing ratio of the components is cement: water-based epoxy resin: aggregate: defoaming agent: pigment: PVA fiber: water reducing agent: the concrete-resin color concrete slab is characterized in that water =921:37:1016:5.5:27:2:7.8:161, cement is portland cement, ordinary portland cement, white portland cement, the 28-day strength of the cement is not lower than 42.5MPa, water-based epoxy resin is a mixture of water-based epoxy resin emulsion and a curing agent, aggregate can contain inorganic materials such as quartz sand, glass sand, colored glass stone, fine stone and the like, the particle size of the aggregate is 0-6mm, an antifoaming agent is concrete or cement mortar antifoaming agent powder, pigment is iron oxide series concrete pigment or color paste, PVA fiber is PVA fiber filament with the length of 10-20mm, a water reducing agent is a concrete high-performance water reducing agent, the water reducing rate is more than 25%, and finally the preparation method of the precast cement-resin color concrete slab comprises the following steps: firstly, paving a mold on a mold table of an automatic production line, cleaning the mold, and painting mold release oil to obtain a prepared mold; then according to the basic mixing proportion of the raw materials, sequentially adding cement, water-based epoxy resin, aggregate, defoamer, pigment and PVA fiber into a stirrer, stirring for 1min, adding water and a water reducing agent into the stirrer, stirring for 5min, pouring out to obtain slurry of the resin color concrete plate, pouring the slurry of the resin color concrete plate obtained in the step two, completing pouring by a spreader, wherein the pouring thickness is 15-25mm, vibrating by a die table vibrator to discharge air bubbles, then eliminating the air bubbles by a defoaming roller for rolling again, performing rough surface treatment after primary setting, covering a surface with a film, then conveying into a steam curing kiln for curing for not less than 12 hours, the temperature of the curing kiln is 60 ℃, the relative humidity is not less than RH90%, manufacturing a compression-resistant test block with the same condition in each production batch, obtaining a resin color concrete plate in curing, taking the obtained resin color concrete plate out of a kiln, determining that the compressive strength reaches 100% of the designed strength, dismantling a mold, and then polishing and conveying the plate into a finished product area for packaging after the plate is polished by an automatic production line; the manufacture of the resin color concrete slab can be completed; finally obtaining a resin color concrete slab; secondly, the construction and installation method of the precast cement-resin colored concrete slab comprises the following steps: preparing a concrete plate in a factory according to the above mixing ratio without grinding and polishing, and transporting the concrete plate to a construction site after packaging; leveling a construction terrace by using a cement and sand mixture, laying floor tiles, keeping the surfaces of the tiles on the same plane, and keeping a gap of 2-3mm between the tiles; pouring cement-resin color concrete slurry with the same proportion, namely cement-resin slurry without aggregate and fiber, into the plate gap, or filling a gap beautifying agent into the gap to ensure that the gap is completely sealed, the gap height is consistent with the floor height, and the wet cloth strip is covered for maintenance for not less than 3 days; after the maintenance is finished, a 0# abrasive disc is installed by using a grinding machine, the surface is polished and leveled, and then the surface is cleaned; the terrace material is used for preparing slurry in the same proportion, namely cement-resin slurry without aggregate and fiber, and the surface is coated with paint to repair bubbles generated on the surface; then grinding by using a 50-3000-mesh grinding piece in sequence, fully coating crystal paste or water-based polishing solution, and polishing by using a No. 2 polishing pad until the surface of the floor is bright, thereby finishing all the working procedures;
the compressive strength and the wear resistance of the prepared resin color concrete plate sample are detected according to the industry standard, and the surface of the sample has no crack after detection, the compressive strength is 86.89mpa, and the wear resistance is good.
Comparative example
The method comprises the steps of detecting the compressive strength and the wear resistance of an existing natural stone floor manufactured by the traditional technology according to an industrial standard by using a sample of the manufactured natural stone floor, wherein the surface of the natural stone floor is free from cracks after detection, the compressive strength is 73.89mpa, and the wear resistance is qualified.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The precast cement-resin color concrete slab is characterized in that the formula of the precast cement-resin color concrete slab consists of cement, water-based epoxy resin, aggregate, a defoaming agent, pigment, PVA (polyvinyl acetate) fiber, a water reducing agent and water, and the raw materials comprise the following components in percentage by mass: water-based epoxy resin: aggregate: defoaming agent: pigment: PVA fiber: water reducing agent: water = (600- > 1000): (30-100): (800-1200): (3-10): (20-50): (1-3): (5-10): (150-180).
2. A precast cement-resin colored concrete panel as set forth in claim 1, wherein: the preparation method of the precast cement-resin colored concrete slab comprises the following steps:
firstly, paving a mold on a mold table of an automatic production line, cleaning the mold, and coating demolding oil to obtain a prepared mold;
step two, sequentially adding cement, water-based epoxy resin, aggregate, a defoaming agent, pigment and PVA fiber into a stirrer according to the basic mixing proportion of the raw materials, stirring for 1min, then adding water and a water reducing agent into the stirrer, stirring for 5min, and then pouring out to obtain the slurry of the resin color concrete plate;
step three, pouring the slurry of the resin color concrete plate obtained in the step two, wherein the pouring is finished by a material distributor, the pouring thickness is 15-25mm, then the slurry is vibrated by a mould table vibrator to discharge air bubbles, then the air bubbles are eliminated by a defoaming roller through rolling brushing again, after initial setting, rough surface treatment is carried out, a film is covered on the surface of the rough surface, then the rough surface is sent into a steam curing kiln for curing, the curing time is not less than 12 hours, the temperature of the curing kiln is 60 ℃, the relative humidity is not less than RH90%, and a compression-resistant test block under the same condition is manufactured in each production batch to obtain the resin color concrete plate under curing;
taking the obtained resin color concrete plate for curing out of the kiln, determining that the compressive strength reaches 100% of the designed strength, dismantling the mold, and then grinding and polishing the plate by an automatic production line and then sending the plate into a finished product area for packaging; the manufacture of the resin color concrete slab can be completed; and finally obtaining the resin color concrete plate.
3. The method of construction installation of a precast cement-resin colored concrete panel according to claim 1, comprising the steps of:
step one, manufacturing a concrete slab in a factory according to the upper surface mixing ratio, grinding and polishing are not needed, and the concrete slab is transported to a construction site after being packaged;
leveling a construction terrace by using a cement and sand mixture, laying floor tiles, keeping the surfaces of the tiles on the same plane, and keeping a gap of 2-3mm between the tiles;
pouring cement-resin color concrete slurry with the same proportion at the plate gap, namely cement-resin slurry without aggregate and fiber, or filling a gap beautifying agent in the gap to ensure that the gap is completely sealed, the gap height is consistent with the floor height, and the wet cloth strip is covered for maintenance for not less than 3 days;
step four, after maintenance is finished, installing a No. 0 abrasive disc by using a grinding machine, polishing the surface and leveling, and then cleaning the surface; the terrace material is used for preparing slurry in the same proportion, namely cement-resin slurry without aggregate and fiber, and the surface is coated with paint to repair bubbles generated on the surface; and then grinding by using a 50-3000-mesh grinding piece in sequence, fully coating crystal paste or water-based polishing solution, and polishing by using a No. 2 polishing pad until the floor surface is bright, thereby finishing all the working procedures.
4. A precast cement-resin colored concrete panel as set forth in claim 1, wherein: the basic mixing ratio of the components is as follows: water-based epoxy resin: aggregate: defoaming agent: pigment: PVA fiber: water reducing agent: water =921:37:1016:5.5:27:2:7.8: 161.
5. A precast cement-resin colored concrete panel as set forth in claim 1, wherein: the cement is Portland cement, ordinary Portland cement or white Portland cement, and the 28-day strength of the cement is not lower than 42.5 MPa.
6. The preparation of a precast cement-resin colored concrete panel according to claim 1, wherein: the waterborne epoxy resin is a mixture of waterborne epoxy resin emulsion and a curing agent.
7. The process for the preparation of precast cement-resin colored concrete panel according to claim 1, wherein: the aggregate can contain inorganic materials such as quartz sand, glass sand, colored glass stone, fine stone and the like, and the particle size of the aggregate is 0-6 mm.
8. The preparation of a precast cement-resin colored concrete panel according to claim 1, wherein: the defoaming agent is concrete or cement mortar defoaming agent powder.
9. The preparation of a precast cement-resin colored concrete panel according to claim 1, wherein: the pigment is iron oxide series concrete pigment or color paste.
10. The preparation of a precast cement-resin colored concrete panel according to claim 1, wherein: the PVA fiber is PVA fiber silk with the length of 10-20 mm; the water reducing agent is a concrete high-performance water reducing agent, and the water reducing rate is more than 25%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911308682.1A CN110981348A (en) | 2019-12-18 | 2019-12-18 | Precast cement-resin colored concrete slab |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911308682.1A CN110981348A (en) | 2019-12-18 | 2019-12-18 | Precast cement-resin colored concrete slab |
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| CN110981348A true CN110981348A (en) | 2020-04-10 |
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| CN201911308682.1A Withdrawn CN110981348A (en) | 2019-12-18 | 2019-12-18 | Precast cement-resin colored concrete slab |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111500040A (en) * | 2020-04-26 | 2020-08-07 | 西京学院 | Light-transmitting colored resin concrete and preparation method thereof |
| CN111805691A (en) * | 2020-06-29 | 2020-10-23 | 成都市东宇市政设施制造厂 | Production process of PC light-transmitting brick |
-
2019
- 2019-12-18 CN CN201911308682.1A patent/CN110981348A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111500040A (en) * | 2020-04-26 | 2020-08-07 | 西京学院 | Light-transmitting colored resin concrete and preparation method thereof |
| CN111805691A (en) * | 2020-06-29 | 2020-10-23 | 成都市东宇市政设施制造厂 | Production process of PC light-transmitting brick |
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Application publication date: 20200410 |