CN111779228A - Waterborne epoxy composite cement self-leveling floor material, floor system and preparation method thereof - Google Patents
Waterborne epoxy composite cement self-leveling floor material, floor system and preparation method thereof Download PDFInfo
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- CN111779228A CN111779228A CN202010683825.3A CN202010683825A CN111779228A CN 111779228 A CN111779228 A CN 111779228A CN 202010683825 A CN202010683825 A CN 202010683825A CN 111779228 A CN111779228 A CN 111779228A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
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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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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/002—Priming paints
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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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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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
- C04B2201/10—Mortars, concrete or artificial stone characterised by specific physical values for the viscosity
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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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- Civil Engineering (AREA)
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- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Floor Finish (AREA)
Abstract
The invention discloses a water-based epoxy composite cement self-leveling floor material which comprises the following components in parts by weight: 1-10 parts of epoxy emulsion, 2-20 parts of curing agent mixture and 14-150 parts of powder; and discloses a preparation method of the waterborne epoxy composite cement self-leveling terrace material. The water-based epoxy composite cement self-leveling floor material disclosed by the invention belongs to an organic crosslinking reaction type polymer cement composite floor material, so that the water-based epoxy composite cement self-leveling floor material has excellent mechanical property, fireproof property, stain resistance, wear resistance and impact resistance, has an excellent apparent effect, can meet the environmental protection requirement and is low in manufacturing cost. The invention also discloses a terrace system which comprises a concrete base layer, a water-based primer layer, the water-based epoxy composite cement self-leveling terrace material and a water-based finish coat, wherein the concrete base layer and the water-based primer layer are sequentially paved from bottom to top. The paint has the advantages of low cost, environmental protection, excellent adhesive property, mechanical property, fireproof property, stain resistance, wear resistance and impact resistance, good appearance effect and capability of solving the problems of bubbling, stripping and falling of paint films.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to a water-based epoxy composite cement self-leveling floor material, a floor system and a preparation method thereof.
Background
The terrace is a ground which is constructed and processed by using specific materials and processes and has certain decoration and functionality. The terrace has the advantages of smooth and clean surface, easy cleaning, seamless, moisture-proof, wear-resistant, impact-resistant and the like.
The cement terrace is widely applied to the traditional terrace and is formed by stirring and mixing cement, sand and a small amount of additives, and the cement terrace is easy to crack and sand in use, lacks elasticity and is difficult to meet the use requirement of a privileged place. At present, when a floor is laid, floors coated with various resin coatings are generally adopted in places with higher requirements on cleanliness, durability and pollution resistance. The current resin coating terrace is mainly epoxy coating ground, and current epoxy coating terrace effect is not ideal in the in-service use: the time required for installation is long, and the construction progress is influenced; the wear resistance, the impact resistance, the flexibility and the like are not satisfactory, and the service life is short; meanwhile, the resin coating terrace is also deficient in durability such as chemical stability, ultraviolet resistance, color retention, gloss retention and the like, contains volatile organic solvents, has different degrees of harm to human bodies and environment, is difficult to meet the occasion requirement of high environmental protection requirement, has generally high manufacturing cost and increases the construction cost. In addition, because the traditional solvent-type and solvent-free paint films are very compact and have extremely poor air permeability, when the paint films are applied to base surfaces which are not subjected to waterproof treatment, the phenomena of paint film bubbling, peeling, falling off and the like are easy to occur.
Therefore, the development of a terrace system which has low cost, can meet the requirement of environmental protection, has excellent adhesive property, mechanical property, fireproof property, stain resistance, wear resistance and impact resistance, has good appearance effect and can solve the problems of bubbling, stripping and falling of a paint film and the like becomes a problem to be solved urgently.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide the water-based epoxy composite cement self-leveling floor material which has excellent mechanical property, fire resistance, stain resistance, wear resistance and impact resistance, has an excellent apparent effect, can meet the requirement of environmental protection and is low in cost.
The second purpose of the invention is to provide the preparation method of the waterborne epoxy composite cement self-leveling floor material, which is simple and easy to operate and can meet the requirements of industrial production.
The invention also aims to provide a terrace system comprising the waterborne epoxy composite cement self-leveling terrace material, which has the advantages of low manufacturing cost, capability of meeting the requirement of environmental protection, excellent bonding property, mechanical property, fireproof property, stain resistance, wear resistance and impact resistance, good appearance effect and capability of solving the problems of bubbling, stripping and falling off of a paint film.
The fourth purpose of the invention is to provide a preparation method of the terrace system of the third purpose of the invention.
One of the purposes of the invention is realized by adopting the following technical scheme:
the utility model provides a waterborne epoxy composite cement is from levelling terrace material which characterized in that includes the component of following part by weight:
1-10 parts of epoxy emulsion, 2-20 parts of curing agent mixture and 14-150 parts of powder.
Further, the curing agent mixture comprises the following components in parts by weight:
1-5 parts of epoxy curing agent, 0.01-0.1 part of water-based defoaming agent and 5-15 parts of deionized water.
Further, the powder material comprises the following components in parts by weight:
45-55 parts of quartz sand, 25-35 parts of white cement, 0.1-1 part of polycarboxylate water reducing agent, 0.1-1 part of activated alumina and 0.05-0.15 part of powder defoaming agent.
Further, the epoxy curing agent is an epoxy curing agent A287; the solid content of the epoxy curing agent is 50 percent; the water-based defoaming agent is one or the combination of more than two of an organic silicon defoaming agent and a mineral oil defoaming agent.
Further, the granularity of the quartz sand is 70-140 meshes; the white cement is silicate No. 52.5 white cement; the polycarboxylate water reducing agent is one or a combination of more than two of a polycarboxylate water reducing agent CP-WBM, a polycarboxylate water reducing agent 530P, a water reducing agent F10, a polycarboxylate water reducing agent 2651F and a polycarboxylate water reducing agent 410; the water reducing rate of the polycarboxylate water reducing agent is more than or equal to 14 percent; the powder antifoaming agent is one or a combination of more than two of powder antifoaming agents WSP2, AP634, P803, 360 and DF6352 DD.
Furthermore, the weight ratio of the epoxy emulsion to the mixture of the curing agent to the powder is 1-10: 2-20: 14-150; the solid content of the epoxy emulsion is 56-64%; the ash accumulation ratio of the waterborne epoxy composite cement self-leveling terrace material is 0.15-0.22; the water-cement ratio of the waterborne epoxy composite cement self-leveling terrace material is 0.32-0.44; the sand-ash ratio of the powder is 1.50-2.00.
The second purpose of the invention is realized by adopting the following technical scheme:
the invention relates to a preparation method of a water-based epoxy composite cement self-leveling floor material, which is characterized by comprising the following steps:
mixing the epoxy emulsion and the curing agent mixture according to the formula ratio, and stirring for 0.5-1 min at the stirring speed of 450-550 rpm; adding half of the powder according to the formula amount, continuously stirring, adding the rest powder, uniformly stirring, troweling by using a toothed trowel and defoaming by using a needle-shaped defoaming roller to prepare the water-based epoxy composite cement self-leveling floor material with the thickness of 2-4 mm.
The third purpose of the invention is realized by adopting the following technical scheme:
a terrace system is characterized by comprising a concrete base layer, a water-based primer layer, a water-based epoxy composite cement self-leveling terrace material and a water-based finish coat which are sequentially paved from bottom to top.
Further, the preparation method of the aqueous primer layer comprises the following steps:
mixing 100-200 parts of epoxy resin and 150-300 parts of waterborne epoxy curing agent A287, stirring for 1-5 minutes, fully emulsifying, then adding 600-700 parts of water, fully stirring uniformly, and rolling-coating on the ground according to the coating dosage of 0.10-0.20kg/m2 to prepare the waterborne primer layer.
The fourth purpose of the invention is realized by adopting the following technical scheme:
the invention also provides a preparation method of the terrace system, which is characterized by comprising the following steps:
pretreating a concrete base layer to obtain a flat concrete base layer, and then coating an aqueous primer layer for 1-2 times on the concrete base layer, wherein the coating interval is 14h-28 days each time; after drying, paving the waterborne epoxy composite cement self-leveling floor material on the waterborne primer layer, wherein the thickness is 2-4 mm; and finally, spreading a water-based finish coat on the water-based epoxy composite cement self-leveling floor material, wherein the thickness of the water-based finish coat is 0.10-0.15mm, and thus obtaining the floor system.
Compared with the prior art, the invention has the beneficial effects that:
1. the waterborne epoxy composite cement self-leveling floor material and the waterborne primer layer in the floor system disclosed by the invention both contain the epoxy curing agent A287, the epoxy curing agent A287 is a waterborne curing agent, a volatile organic compound is not contained, the freezing and thawing stability is realized, the gelling time is short, the rapid drying can be realized, the floor system is suitable for fresh concrete base planes and wet concrete base planes, the floor system containing the epoxy curing agent A287 is excellent in mechanical property, and the shrinkage rate of the floor system in 30 days is less than 1%.
2. In the prior art, the water content of a concrete base surface is required to be less than 4% for constructing the solvent-free floor coating, and the water-based epoxy composite cement self-leveling floor material can quickly reduce the initial water content of a concrete base layer and can be used as a damp-proof layer; and the diameter can reach 15cm after self-leveling, the fluidity is excellent, the construction is greatly facilitated, and the construction efficiency is improved.
3. The terrace system disclosed by the invention is a full-aqueous system, does not contain volatile organic compounds, can meet the requirement of environmental protection, has excellent bonding performance on dry and wet concrete base layers, and has the performances of high strength, impact resistance, wear resistance, contamination resistance and the like; the problems of bubbling, peeling and falling of a paint film can be solved, and the appearance effect is good; the whole terrace system can also achieve A2-grade fire prevention, and is low in manufacturing cost and high in economic value.
4. The water-based primer layer of the terrace system does not contain volatile organic compounds, and can meet the requirement of environmental protection; the permeability is more than 10 times of that of the traditional water-based primer, the paint has strong bonding capacity to dry and wet concrete base layers, the drawing strength is 1.5-2.5Mpa, and the cohesive failure of concrete can be realized. The water-based primer layer is designed to be matte, and can meet different construction requirements; the gel time of the water-based primer layer is 60-75 minutes, the surface drying time is 1 hour, and the actual drying time is 5 hours, so that the rapid drying can be realized; the recoating time is wide, the recoating interval is 14h-28 days, surface treatment is not needed, and subsequent construction can be carried out after 28 days of maintenance as in the prior art, so that the construction efficiency is greatly improved, and the construction period is shortened.
5. The water-based primer layer of the terrace system has strong permeability, can achieve the penetration seal with the depth of 10mm, and can effectively prevent water vapor from penetrating into the water-based epoxy composite cement self-leveling terrace material from the concrete base layer; the water-cement ratio of the water-based epoxy composite cement self-leveling floor material is low, part of cement is surplus, and when part of water vapor enters the water-based epoxy composite cement self-leveling floor material through the water-based primer layer, the surplus cement can react with the permeated water vapor; in addition, the water-based finish coat is an open system of a full water system, and can realize the diffusion of water vapor, so that the problems of paint film permeability bubbling, peeling and falling and the like of the wet concrete base surface are solved through the synergistic effect of the three-layer structure of the terrace system.
Detailed Description
The present invention is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment. The equipment and raw materials used are all available on the market or commonly used in the field. The methods in the following examples are conventional in the art unless otherwise specified.
The utility model provides a waterborne epoxy composite cement is from levelling terrace material, includes the component of following part by weight:
1-10 parts of epoxy emulsion, 2-20 parts of curing agent mixture and 14-150 parts of powder.
The epoxy emulsion can be selected from epoxy emulsion EM-62 of the winning industry group.
As a further embodiment, the curing agent mixture comprises the following components in parts by weight:
1-5 parts of epoxy curing agent, 0.01-0.1 part of water-based defoaming agent and 5-15 parts of deionized water.
As a further embodiment, the powder material comprises the following components in parts by weight:
45-55 parts of quartz sand, 25-35 parts of white cement, 0.1-1 part of polycarboxylate water reducing agent, 0.1-1 part of activated alumina and 0.05-0.15 part of powder defoaming agent.
As a further embodiment, the epoxy curing agent is epoxy curing agent a 287; the solid content of the epoxy curing agent is 50 percent; the water-based defoaming agent is one or the combination of more than two of organic silicon defoaming agents and mineral oil defoaming agents.
Epoxy curative A287 is available from the winning industry group.
As a further embodiment, the quartz sand has a particle size of 70 to 140 mesh; the white cement is silicate number 52.5 white cement; the polycarboxylate water reducing agent is one or a combination of more than two of a polycarboxylate water reducing agent CP-WBM, a polycarboxylate water reducing agent 530P, a water reducing agent F10, a polycarboxylate water reducing agent 2651F and a polycarboxylate water reducing agent 410; the water reducing rate of the polycarboxylate water reducing agent is more than or equal to 14 percent; the powder defoaming agent is one or the combination of more than two of powder defoaming agent WSP2, powder defoaming agent AP634, powder defoaming agent P803, powder defoaming agent 360 and powder defoaming agent DF6352 DD.
Polycarboxylate water reducers CP-WBM are available from LGchem (LG Chem.).
The polycarboxylate water reducer 530P is commercially available from Xika (China) Inc.
The water reducer F10 is commercially available from Pasteur, Germany.
The polycarboxylate water reducer 2651F is commercially available from Pasteur, Germany.
The polycarboxylate water reducer 410 is commercially available from basf, germany.
The powder defoamer WSP2 was available from SILICONI, Italy.
The powder antifoam AP634 is commercially available from EROL, France.
The powdery antifoaming agent P803 is commercially available from German Mingling chemical group.
Powder defoamer 360 is available from winning industry group.
Powdered defoamer DF6352 DD is available from spain corporation of usa.
As a further embodiment, the weight parts ratio of the epoxy emulsion, the curing agent mixture and the powder is 1-10: 2-20: 14-150; the solid content of the epoxy emulsion is 56-64 percent; the ash accumulation ratio of the water-based epoxy composite cement self-leveling terrace material is 0.15-0.22; the water-cement ratio of the water-based epoxy composite cement self-leveling terrace material is 0.32-0.44; the sand-ash ratio of the powder is 1.50-2.00.
The preparation method of the waterborne epoxy composite cement self-leveling floor material comprises the following steps:
mixing the epoxy emulsion and the curing agent mixture according to the formula ratio, and stirring for 0.5-1 min at the stirring speed of 450-550 rpm; adding half of the powder according to the formula amount, continuously stirring, adding the rest powder, uniformly stirring, troweling by using a toothed trowel and defoaming by using a needle-shaped defoaming roller to prepare the water-based epoxy composite cement self-leveling floor material with the thickness of 2-4 mm.
A terrace system comprises a concrete base layer, a water-based primer layer, the water-based epoxy composite cement self-leveling terrace material and a water-based finish coat which are sequentially paved from bottom to top.
As a further embodiment, the method for preparing the aqueous primer layer comprises:
mixing 100-200 parts of epoxy resin and 150-300 parts of waterborne epoxy curing agent A287, stirring for 1-5 minutes, fully emulsifying, then adding 600-700 parts of water, fully stirring uniformly, and rolling-coating on the ground according to the coating dosage of 0.10-0.20kg/m2 to prepare the waterborne primer layer.
The epoxy resin may be epoxy resin 128 from south Asian resins, Inc.
The aqueous epoxy hardener A287 can be purchased from the winning industry group.
The preparation method of the terrace system comprises the following steps:
pretreating a concrete base layer to obtain a flat concrete base layer, and then coating an aqueous primer layer for 1-2 times on the concrete base layer, wherein the coating interval is 14h-28 days each time; after drying, paving the waterborne epoxy composite cement self-leveling floor material on the waterborne primer layer, wherein the thickness is 2-4 mm; and finally, spreading a water-based finish coat on the water-based epoxy composite cement self-leveling floor material, wherein the thickness of the water-based finish coat is 0.10-0.15mm, and thus obtaining the floor system.
Example 1:
a terrace system comprises a concrete base layer, a water-based primer layer, a water-based epoxy composite cement self-leveling terrace material and a water-based finish coat which are sequentially paved from bottom to top. The preparation method of the terrace system comprises the following steps: pretreating a concrete base layer to obtain a flat concrete base layer, and then coating an aqueous primer layer on the concrete base layer for 2 times at an interval of 14h-28 days; after drying, paving the waterborne epoxy composite cement self-leveling floor material on the waterborne primer layer, wherein the thickness is 2mm, and drying for 48 h; and finally, spreading a water-based finish coat on the water-based epoxy composite cement self-leveling floor material, wherein the thickness is 0.10mm, and drying for 48 hours to obtain the floor system.
The preparation method of the water-based primer layer comprises the following steps: mixing 100 parts of epoxy resin and 150 parts of waterborne epoxy curing agent A287, stirring for 3 minutes for full emulsification, then adding 650 parts of water, and fully stirring uniformly according to the proportion of 0.10kg/m2The coating amount of the aqueous primer is adopted, and the aqueous primer layer is prepared by rolling and coating the aqueous primer layer on the ground.
The waterborne epoxy composite cement self-leveling floor material comprises the following components in parts by weight: epoxy emulsion EM-623 parts, curing agent mixture 6 parts and powder 44.1 parts. The solid content of the epoxy emulsion EM-62 is 56 percent; the ash accumulation ratio of the waterborne epoxy composite cement self-leveling terrace material is 0.18; the water-cement ratio of the waterborne epoxy composite cement self-leveling terrace material is 0.37; the sand-ash ratio of the powder is 1.80.
The preparation method of the waterborne epoxy composite cement self-leveling floor material comprises the following steps: mixing the epoxy emulsion EM-62 and the curing agent mixture according to the formula amount, and stirring for 1 minute at the stirring speed of 500 revolutions per minute; adding half of the powder according to the formula amount, continuously stirring, adding the rest powder, uniformly stirring, troweling by using a toothed trowel and defoaming by using a needle-shaped defoaming roller to prepare the water-based epoxy composite cement self-leveling floor material with the thickness of 3 mm.
Wherein the curing agent mixture comprises the following components in parts by weight: 2871 parts of epoxy curing agent A, 0.01 part of water-based defoaming agent and 5 parts of deionized water. The water-based defoaming agent is an organic silicon defoaming agent.
The powder comprises the following components in parts by weight: 45 parts of quartz sand, 25 parts of white cement, 0.1 part of polycarboxylate water reducing agent, 0.1 part of activated alumina and 0.05 part of powder defoaming agent.
The granularity of the quartz sand is 70-100 meshes; the white cement is silicate number 52.5 white cement; the polycarboxylate water reducing agent is a polycarboxylate water reducing agent CP-WBM; the water reducing rate of the polycarboxylate water reducing agent is more than or equal to 14 percent; the powder antifoaming agent is powder antifoaming agent WSP 2.
Example 2:
a terrace system comprises a concrete base layer, a water-based primer layer, a water-based epoxy composite cement self-leveling terrace material and a water-based finish coat which are sequentially paved from bottom to top. The preparation method of the terrace system comprises the following steps: pretreating the concrete base layer to obtain a flat concrete base layer; then coating 1 time of water-based primer layer on the concrete base layer, wherein the coating interval is 10 days; after drying, paving the waterborne epoxy composite cement self-leveling floor material on the waterborne primer layer, wherein the thickness is 4 mm; and finally, paving a water-based finish coat on the water-based epoxy composite cement self-leveling floor material, wherein the thickness of the water-based finish coat is 0.15mm, and thus obtaining the floor system.
Wherein, the water-based baseThe preparation method of the paint layer comprises the following steps: mixing 200 parts of epoxy resin and 250 parts of waterborne epoxy curing agent A287, stirring for 3 minutes for full emulsification, then adding 700 parts of water, and fully stirring uniformly according to the proportion of 0.20kg/m2The coating amount of the aqueous primer is adopted, and the aqueous primer layer is prepared by rolling and coating the aqueous primer layer on the ground.
The waterborne epoxy composite cement self-leveling floor material comprises the following components in parts by weight: epoxy emulsion EM-6210 parts, curing agent mixture 20 parts and powder 147 parts. The solid content of the epoxy emulsion EM-62 is 64 percent; the ash accumulation ratio of the waterborne epoxy composite cement self-leveling terrace material is 0.15; the water-cement ratio of the waterborne epoxy composite cement self-leveling terrace material is 0.32; the sand-ash ratio of the powder is 1.50.
The preparation method of the waterborne epoxy composite cement self-leveling floor material comprises the following steps: mixing the epoxy emulsion EM-62 and the curing agent mixture according to the formula amount, and stirring for 1 minute at the stirring speed of 550 revolutions per minute; adding half of the powder according to the formula amount, continuously stirring, adding the rest powder, uniformly stirring, troweling by using a toothed trowel and defoaming by using a needle-shaped defoaming roller to prepare the water-based epoxy composite cement self-leveling floor material with the thickness of 2 mm.
Wherein the curing agent mixture comprises the following components in parts by weight: 2875 parts of epoxy curing agent A, 0.1 part of water-based defoaming agent and 15 parts of deionized water. The solid content of the epoxy curing agent A287 is 50%; the aqueous defoaming agent is a mineral oil defoaming agent.
The powder comprises the following components in parts by weight: 55 parts of quartz sand, 35 parts of white cement, 1 part of polycarboxylate water reducing agent, 1 part of activated alumina and 0.15 part of powder defoaming agent.
The granularity of the quartz sand is 140 meshes; the white cement is silicate number 52.5 white cement; the polycarboxylate water reducing agent is a combination of polycarboxylate water reducing agent 530P and polycarboxylate water reducing agent 2651F; the water reducing rate of the polycarboxylate water reducing agent is more than or equal to 14 percent; the powder antifoaming agent is a combination of powder antifoaming agent AP634 and powder antifoaming agent 360.
Example 3:
a terrace system comprises a concrete base layer, a water-based primer layer, a water-based epoxy composite cement self-leveling terrace material and a water-based finish coat which are sequentially paved from bottom to top. The preparation method of the terrace system comprises the following steps: pretreating a concrete base layer to obtain a flat concrete base layer, and then coating an aqueous primer layer on the concrete base layer for 2 times, wherein the coating interval is 28 days each time; after drying, paving the waterborne epoxy composite cement self-leveling floor material on the waterborne primer layer, wherein the thickness is 3 mm; and finally, paving a water-based finish coat on the water-based epoxy composite cement self-leveling floor material, wherein the thickness of the water-based finish coat is 0.12mm, and thus obtaining the floor system.
The preparation method of the water-based primer layer comprises the following steps: mixing 150 parts of epoxy resin and 190 parts of waterborne epoxy curing agent A287, stirring for 3 minutes for full emulsification, then adding 660 parts of water, and fully stirring uniformly according to the proportion of 0.15kg/m2The coating amount of the aqueous primer is adopted, and the aqueous primer layer is prepared by rolling and coating the aqueous primer layer on the ground.
The waterborne epoxy composite cement self-leveling floor material comprises the following components in parts by weight: epoxy emulsion EM-625.53 parts, curing agent mixture 11.58 parts and powder 82.86 parts. The solid content of the epoxy emulsion EM-62 is 60 percent; the ash accumulation ratio of the waterborne epoxy composite cement self-leveling terrace material is 0.22; the water-cement ratio of the waterborne epoxy composite cement self-leveling terrace material is 0.44; the sand-ash ratio of the powder is 2.00.
The preparation method of the waterborne epoxy composite cement self-leveling floor material comprises the following steps: mixing the epoxy emulsion EM-62 and the curing agent mixture according to the formula amount, and stirring for 1 minute at the stirring speed of 500 revolutions per minute; adding powder with half formula amount, continuously stirring, adding the rest powder, uniformly stirring, troweling with a toothed trowel for construction and defoaming with a needle defoaming roller to obtain the waterborne epoxy composite cement self-leveling floor material with the thickness of 4 mm.
Wherein the curing agent mixture comprises the following components in parts by weight: 2873.48 parts of epoxy curing agent A, 0.05 part of water-based defoaming agent and 8.05 parts of deionized water. The solid content of the epoxy curing agent A287 is 50%; the water-based defoaming agent is an organic silicon defoaming agent.
The powder comprises the following components in parts by weight: 51 parts of quartz sand, 31 parts of white cement, 0.16 part of polycarboxylate water reducing agent, 0.6 part of activated alumina and 0.1 part of powder defoaming agent.
The granularity of the quartz sand is 100 meshes; the white cement is silicate number 52.5 white cement; the polycarboxylate water reducing agent is the combination of polycarboxylate water reducing agent F10 and polycarboxylate water reducing agent 410; the water reducing rate of the polycarboxylate water reducing agent is more than or equal to 14 percent; the powder antifoaming agent is a combination of a powder antifoaming agent P803 and a powder antifoaming agent DF6352 DD.
Verification of the examples:
1. the floor system of example 3 and the ordinary waterborne self-leveling of the prior art were tested for performance, the results of which are shown in table 1.
2. The surface water content of the terrace system of example 3 and the general concrete was measured, and the measurement results are shown in table 2.
3. The terrace system of example 3 and the performances of ordinary aqueous self-leveling and cement-based self-leveling in the prior art were tested, and the test results are shown in table 3.
Table 1 shows the results of the performance tests of the terrace system of example 3 and the ordinary water-based self-leveling of the prior art
As can be seen from table 1, the fluidity of the terrace system of the embodiment 3 can reach 15cm, and the fluidity is excellent, thereby being beneficial to engineering construction; and the shrinkage rate of 30 days is less than 1 percent; and has excellent bonding strength, impact strength, compressive strength and breaking strength. In addition, the terrace system of example 3 has excellent fluidity even in a severe environment of high temperature and high humidity (30 ℃, relative humidity 50%), and has an excellent surface state without problems such as shrinkage cavities, bubbles and cracks.
Table 2 shows the results of testing the surface water content of the terrace system and general concrete of example 3
It can be seen from table 2 that the terrace system of embodiment 3 can reduce the initial moisture content of the concrete base face fast, can regard as the dampproof course to use.
Table 3 shows the results of the performance tests of the terrace system, the ordinary water-based self-leveling property and the cement-based self-leveling property in example 3
As can be seen from table 3, the terrace system of example 3 has excellent mechanical properties such as compression resistance, bending resistance, impact resistance, and the like, has good adhesion property, can adhere wet concrete, has superior wear resistance and chemical resistance, has no VOC, and can meet the requirement of environmental protection.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (10)
1. The utility model provides a waterborne epoxy composite cement is from levelling terrace material which characterized in that includes the component of following part by weight:
1-10 parts of epoxy emulsion, 2-20 parts of curing agent mixture and 14-150 parts of powder.
2. The waterborne epoxy composite cement self-leveling floor material according to claim 1, wherein the curing agent mixture comprises the following components in parts by weight:
1-5 parts of epoxy curing agent, 0.01-0.1 part of water-based defoaming agent and 5-15 parts of deionized water.
3. The water-based epoxy composite cement self-leveling floor material as claimed in claim 1, wherein the powder comprises the following components in parts by weight:
45-55 parts of quartz sand, 25-35 parts of white cement, 0.1-1 part of polycarboxylate water reducing agent, 0.1-1 part of activated alumina and 0.05-0.15 part of powder defoaming agent.
4. The waterborne epoxy composite cementitious self-leveling floor material of claim 2, wherein the epoxy curative is epoxy curative a 287; the solid content of the epoxy curing agent is 50 percent; the water-based defoaming agent is one or the combination of more than two of an organic silicon defoaming agent and a mineral oil defoaming agent.
5. The aqueous epoxy composite cement self-leveling floor material according to claim 3, wherein the quartz sand has a particle size of 70-140 mesh; the white cement is silicate No. 52.5 white cement; the polycarboxylate water reducing agent is one or a combination of more than two of a polycarboxylate water reducing agent CP-WBM, a polycarboxylate water reducing agent 530P, a water reducing agent F10, a polycarboxylate water reducing agent 2651F and a polycarboxylate water reducing agent 410; the water reducing rate of the polycarboxylate water reducing agent is more than or equal to 14 percent; the powder antifoaming agent is one or a combination of more than two of powder antifoaming agents WSP2, AP634, P803, 360 and DF6352 DD.
6. The waterborne epoxy composite cement self-leveling floor material as claimed in claim 1, wherein the weight ratio of the epoxy emulsion, the curing agent mixture and the powder is 1-10: 2-20: 14-150; the solid content of the epoxy emulsion is 56-64%; the ash accumulation ratio of the waterborne epoxy composite cement self-leveling terrace material is 0.15-0.22; the water-cement ratio of the waterborne epoxy composite cement self-leveling terrace material is 0.32-0.44; the sand-ash ratio of the powder is 1.50-2.00.
7. The preparation method of the water-based epoxy composite cement self-leveling floor material as claimed in any one of claims 1 to 6, characterized by comprising the following steps:
mixing the epoxy emulsion and the curing agent mixture according to the formula ratio, and stirring for 0.5-1 min at the stirring speed of 450-550 rpm; adding half of the powder according to the formula amount, continuously stirring, adding the rest powder, uniformly stirring, troweling by using a toothed trowel and defoaming by using a needle-shaped defoaming roller to prepare the water-based epoxy composite cement self-leveling floor material with the thickness of 2-4 mm.
8. A terrace system, which is characterized by comprising a concrete base layer, a water-based primer layer, the water-based epoxy composite cement self-leveling terrace material and the water-based finish coat which are sequentially paved from bottom to top, according to any one of claims 1 to 6.
9. The floor system of claim 8, wherein the aqueous primer layer is prepared by the following steps:
mixing 100-200 parts of epoxy resin and 150-300 parts of waterborne epoxy curing agent A287, stirring for 1-5 minutes for full emulsification, then adding 600-700 parts of water, and fully stirring uniformly according to the proportion of 0.10-0.20kg/m2The coating amount of the aqueous primer is adopted, and the aqueous primer layer is prepared by rolling and coating the aqueous primer layer on the ground.
10. The method for preparing a floor system of claim 8, comprising the steps of:
pretreating a concrete base layer to obtain a flat concrete base layer, and then coating an aqueous primer layer for 1-2 times on the concrete base layer, wherein the coating interval is 14h-28 days each time; after drying, paving the waterborne epoxy composite cement self-leveling floor material on the waterborne primer layer, wherein the thickness is 2-4 mm; and finally, spreading a water-based finish coat on the water-based epoxy composite cement self-leveling floor material, wherein the thickness of the water-based finish coat is 0.10-0.15mm, and thus obtaining the floor system.
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