CN110655377A - Bi-component ground renovation filling material, bi-component ground renovation filling material slurry and preparation method and application thereof - Google Patents
Bi-component ground renovation filling material, bi-component ground renovation filling material slurry and preparation method and application thereof Download PDFInfo
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- CN110655377A CN110655377A CN201911140608.3A CN201911140608A CN110655377A CN 110655377 A CN110655377 A CN 110655377A CN 201911140608 A CN201911140608 A CN 201911140608A CN 110655377 A CN110655377 A CN 110655377A
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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
- C04B28/14—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 calcium sulfate cements
- C04B28/16—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 calcium sulfate cements containing anhydrite, e.g. Keene's cement
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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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/06—Quartz; Sand
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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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/26—Carbonates
- C04B14/28—Carbonates of calcium
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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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/0076—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials characterised by the grain distribution
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0285—Repairing or restoring flooring
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
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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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
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- Electrochemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to a bi-component ground renovation filling material, bi-component ground renovation filling material slurry and a preparation method and application thereof. The bi-component ground renovation filling material comprises powder and a curing agent; the powder material comprises a common inorganic cementing material, an early-strength inorganic cementing material, a quick-hardening inorganic cementing material, aggregate, filler, an alkali-resistant auxiliary agent, redispersible latex powder and hydroxypropyl methyl cellulose ether; the curing agent comprises an emulsion. The bi-component ground renovating filler (or slurry) has excellent performances of high flexibility, high adhesive force, environmental protection and the like, has excellent bidirectional matching performance with an old base surface (especially an old tile base surface) and a floor material, and fully ensures the durability and safety of a floor system.
Description
Technical Field
The invention belongs to the technical field of building materials, and particularly relates to a bi-component ground renovation filler, a preparation method and application thereof, and bi-component ground renovation filler slurry, a preparation method and application thereof. Is suitable for renovating old building ground, in particular old ceramic tile ground.
Background
Traditional ceramic floor tile renovates and adopts the mode of "ceramic floor tile is polished and is dug mao + cutting brickwork joint + repair mortar + epoxy and joint filling" to carry out old base face and handle, later carries out normal terrace construction flow again, and whole process procedure is loaded down with trivial details, construction cycle is long, required product is of a great variety, therefore the efficiency of construction is low, the comprehensive cost is high, and the compatibility problem appears easily between the product.
Based on the requirements of high speed, high efficiency, short construction period, pollution reduction and stable quality, the adoption of the high-efficiency and multifunctional ground renovating and filling material is a great trend of treating the old base surface of the ceramic floor tile in the future. At present, multifunctional ground renovation filling materials do not appear in the market, most of the materials only have a single repairing function or a single leveling function, and the requirements of simplifying construction procedures and improving construction efficiency cannot be met; or only suitable for the renovation of terrazzo ground, can not be suitable for the renovation of old brick ground, and has narrow application range; or the concrete still has defects in the aspects of compressive strength and rupture strength, and cannot simultaneously have excellent fluidity, flexibility and adhesive force, so that the durability and safety of the terrace system cannot be guaranteed fully.
Therefore, it is very significant to develop a multifunctional ground renovation filling material which has the functions of repairing and leveling, excellent flexibility, adhesion, compression resistance and fracture resistance and wide application range.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a two-component ground renovation filler and a preparation method and application thereof, and a two-component ground renovation filler slurry and a preparation method and application thereof. The bi-component ground renovating filler (or slurry) has excellent performances of high flexibility, high adhesive force, high pressure resistance, high fracture resistance, environmental protection and the like, has excellent bidirectional matching performance with an old base surface (especially an old tile base surface) and a terrace material, and fully ensures the durability and safety of a terrace system.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the present invention provides a two component floor-renovating filler material comprising a powder and a curing agent;
the powder material comprises a common inorganic cementing material, an early-strength inorganic cementing material, a quick-hardening inorganic cementing material, aggregate, filler, an alkali-resistant auxiliary agent, redispersible latex powder and hydroxypropyl methyl cellulose ether;
the curing agent comprises an emulsion.
The two-component ground renovation filling material has excellent fluidity, construction property, high flexibility, high adhesive force, high pressure resistance, high fracture resistance, environmental protection and other properties, and is a multifunctional filling material. The invention creatively uses the double components to replace the traditional single-component filling material, compared with the single component, the double components can obviously improve the fluidity and the construction property of the filling material, can practically meet various construction requirements, and can obviously improve the flexibility, the adhesiveness, the pressure resistance and the fracture resistance of the filling material. The invention also creatively uses three inorganic cementing materials of a common type, an early strength type and a quick hardening type to carry out compounding, so that the excellent performances of the filling material are more outstanding.
Preferably, the weight ratio of powder to curing agent is (3-5):1, e.g., 3:1, 3.5:1, 4:1, 4.5:1 or 5:1, etc.
When the weight ratio of the powder to the curing agent is within the range, the dual-component ground renovation filling material has more remarkable excellence in performances such as high flexibility, high adhesive force, high pressure resistance and high fracture resistance.
Preferably, the powder material comprises 12.0-20.0% of common inorganic cementing material, 10.0-15.0% of early strength inorganic cementing material, 5.0-10.0% of quick-hardening inorganic cementing material, 40.0-55.0% of aggregate, 12.0-22.0% of filler, 1.0-3.0% of alkali-resistant auxiliary agent, 1.0-3.5% of redispersible latex powder and 0.05-0.15% of hydroxypropyl methyl cellulose ether by weight percentage.
When the eight components in the powder are combined according to the specific weight ratio, the matching effect is more remarkable, and further, the performances of the dual-component ground renovation filling material are more excellent.
The weight percentage of the common inorganic cementing material in the powder material can be 12.0%, 13.0%, 14.0%, 15.0%, 16.0%, 17.0%, 18.0%, 19.0% or 20.0%, etc. Other specific point values within the range can be selected, and are not described herein.
The early-strength inorganic cementing material accounts for 10.0 percent, 11.0 percent, 12.0 percent, 13.0 percent, 14.0 percent or 15.0 percent of the powder material by weight percentage, and the like. Other specific point values within the range can be selected, and are not described herein.
The quick-hardening inorganic cementing material accounts for 5.0 percent, 6.0 percent, 7.0 percent, 8.0 percent, 9.0 percent or 10.0 percent of the powder material by weight percentage, and the like. Other specific point values within the range can be selected, and are not described herein.
The aggregate can account for 40.0%, 41.0%, 42.0%, 43.0%, 44.0%, 45.0%, 47.0%, 48.0%, 50.0%, 52.0% or 55.0% by weight of the powder material. Other specific point values within the range can be selected, and are not described herein.
The weight percentage of the filler in the powder material can be 12.0%, 13.0%, 14.0%, 15.0%, 16.0%, 17.0%, 18.0%, 19.0%, 20.0%, 21.0% or 22.0%, etc. Other specific point values within the range can be selected, and are not described herein.
The alkali-resistant auxiliary agent accounts for 1.0%, 1.5%, 2.0%, 2.5% or 3.0% of the powder material by weight.
The weight percentage of the redispersible latex powder in the powder material can be 1.0%, 1.5%, 2.0%, 2.5%, 3.0% or 3.5%, etc. Other specific point values within the range can be selected, and are not described herein.
The hydroxypropyl methyl cellulose ether can account for 0.05 percent, 0.06 percent, 0.08 percent, 0.09 percent, 0.10 percent, 0.11 percent, 0.12 percent, 0.14 percent or 0.15 percent of the powder material by weight and the like. Other specific point values within the range can be selected, and are not described herein.
Preferably, the powder material also comprises any one or the combination of at least two of 0.03 to 0.10 percent of water reducing agent, 0.08 to 0.15 percent of defoaming agent, 0.03 to 0.08 percent of retarder or 0.01 to 0.06 percent of coagulant by weight percentage. A combination of the at least two such as a combination of a water reducing agent and a defoaming agent; a combination of a retarder and a set accelerator; combinations of water reducing agents, defoamers, retarders and set accelerators, and the like. Any other combination is not described in detail herein.
In addition to the above eight formulation components, as a more preferable technical scheme, one or more of a water reducing agent, a defoaming agent, a retarder or a coagulant can be added to the powder, and the components can be selectively added according to the requirements of practical application. Wherein the water reducing agent has a dispersing effect on the inorganic gelled particles, and can improve the early strength of the filling material; the addition of the defoaming agent can improve the workability of the filling material; the addition of the retarder can properly prolong the operable time of the filling material; the addition of the coagulant can suitably shorten the setting time of the inorganic cementitious material, thereby suitably shortening the construction waiting time.
The water reducing agent accounts for 0.03%, 0.04%, 0.05%, 0.06%, 0.07%, 0.08%, 0.09%, 0.10% or the like of the powder material. Other specific point values within the range can be selected, and are not described herein.
The defoaming agent accounts for 0.08%, 0.09%, 0.10%, 0.11%, 0.12%, 0.13%, 0.14%, 0.15% or the like of the powder material in percentage by weight. Other specific point values within the range can be selected, and are not described herein.
The weight percentage of the retarder in the powder material can be 0.03%, 0.04%, 0.05%, 0.06%, 0.07% or 0.08%, etc. Other specific point values within the range can be selected, and are not described herein.
The coagulant may be present in the powder in an amount of 0.01%, 0.02%, 0.03%, 0.04%, 0.05% or 0.06% by weight. Other specific point values within the range can be selected, and are not described herein.
Preferably, the general type inorganic cement includes portland cement of p.o42.5 and above (e.g., p.o42.5, p.o52.5, etc.).
Preferably, the early strength inorganic cementitious material comprises sulphoaluminate cement.
Preferably, the sulphoaluminate cement is p.o42.5 or more (e.g. p.o42.5, p.o52.5, etc.).
Preferably, the fast hardening inorganic cementitious material comprises anhydrite. Further preferred is primary anhydrous gypsum.
Preferably, the aggregate is quartz sand of 40-140 meshes (e.g., 40 meshes, 50 meshes, 60 meshes, 80 meshes, 90 meshes, 100 meshes, 120 meshes, 140 meshes, etc.).
Preferably, the grain composition of the 40-140 mesh quartz sand is as follows:
the quartz sand is distributed in a continuous gradient within the range of 40-140 meshes, and the quartz sand of each gradient has a specific weight ratio, under the condition, the two-component ground renovating filling material has better fluidity, tensile bonding strength, compressive strength, flexural strength and flexibility.
Preferably, the filler comprises quartz sand and/or ground calcium carbonate.
Preferably, the mesh number of the quartz sand is 120-220 meshes (for example, 120 meshes, 140 meshes, 150 meshes, 160 meshes, 170 meshes, 180 meshes, 200 meshes or 220 meshes); the mesh number of the heavy calcium carbonate is 200 meshes and 325 meshes (for example, 200 meshes, 220 meshes, 250 meshes, 260 meshes, 280 meshes, 300 meshes, 315 meshes, 325 meshes and the like).
Preferably, the anti-alkali adjuvant comprises metakaolin and/or a saltpetering inhibitor. The panthenol inhibitor is preferably an Acksonobel panthenol inhibitor.
Preferably, the viscosity (Brookfield RV viscosity) of the hydroxypropylmethylcellulose ether is 300-10000 mPas, for example 300 mPas, 500 mPas, 1000 mPas, 1500 mPas, 2000 mPas, 4000 mPas, 5000 mPas, 6000 mPas, 7000 mPas, 8000 mPas or 10000 mPas, etc.
Preferably, the emulsion comprises a pure acrylic emulsion.
Preferably, the set retarder comprises tartaric acid and/or sodium citrate.
Preferably, the coagulant comprises lithium sulfate.
In a second aspect, the present invention provides a method of preparing a two-component retread filler material as described above, the method comprising:
mixing common inorganic cementing materials, early-strength inorganic cementing materials, quick-hardening inorganic cementing materials, aggregates, fillers, alkali-resistant auxiliaries, redispersible latex powder and hydroxypropyl methyl cellulose ether according to a ratio to obtain powder, and forming the bi-component ground renovation filling material together with a curing agent.
The two-component ground renovating filling material comprises two components of powder and curing agent, which are separately and independently packaged in the product, and the powder and the curing agent can be mixed when in use.
In a third aspect, the present invention provides a two component floor renovation filler slurry comprising a two component floor renovation filler as described above and water in a weight ratio of 1 (0.3-0.4).
In a fourth aspect, the present invention provides a method of preparing a two component retread filler slurry as described above, the method of preparation comprising: mixing water with a curing agent in the bi-component ground renovation filler, and then mixing the mixture with powder in the bi-component ground renovation filler to obtain the bi-component ground renovation filler slurry.
Preferably, the temperature of the mixing is 5-40 ℃, such as 5 ℃, 10 ℃, 15 ℃, 20 ℃, 25 ℃, 28 ℃, 30 ℃, 35 ℃ or 40 ℃ and the like.
In a fifth aspect, the present invention provides the use of a two component floor renovating filler material as described above or a two component floor renovating filler slurry as described above in the renovation of old construction floor.
Preferably, the building old floor is an old tile floor.
Compared with the prior art, the invention has the following beneficial effects:
the two-component ground renovation filling material has excellent fluidity, construction property, high flexibility, high adhesive force, high pressure resistance, high fracture resistance, environmental protection and other properties, and is a multifunctional filling material. The invention creatively uses the double components to replace the traditional single-component filling material, compared with the single component, the double components can obviously improve the fluidity and the construction property of the filling material, can practically meet various construction requirements, and can obviously improve the flexibility, the adhesiveness, the pressure resistance and the fracture resistance of the filling material. The invention also creatively uses three inorganic cementing materials of a common type, an early strength type and a quick hardening type to carry out compounding, so that the excellent performances of the filling material are more outstanding.
In addition, the filling material disclosed in the prior art can not realize the functions of repairing and leveling at the same time, because the requirement on the flexibility and the adhesiveness of the filling material is very high, in the invention, as the aggregates are scientifically and reasonably prepared in a particle grading way and are matched with emulsion and other various auxiliary agents, the filling material has the functions of repairing and leveling, can be effectively attached to the surface of an old base surface which does not need to be subjected to roughening cutting treatment, has excellent bidirectional matching with the old base surface (especially the old ceramic tile base surface) and a terrace material, and can effectively ensure the durability and the safety of a terrace system.
The filling material has the comprehensive performance, so that materials with single performance do not need to be overlapped and used for multiple times during construction, and under the condition of ensuring the quality and the requirement, the filling material can simplify the construction process, improve the construction efficiency, shorten the construction period and reduce the labor cost. The two-component ground renovation filler slurry prepared by the method also has the excellent performance and has great advantages in the application of renovating the old ground of buildings.
Detailed Description
To further illustrate the technical means and effects of the present invention, the following further describes the technical solution of the present invention with reference to the preferred embodiments of the present invention, but the present invention is not limited to the scope of the embodiments.
Example 1
(1) This example provides a two component floor-renovation filling material comprising a powder and a curing agent in a weight ratio of 4: 1. The curing agent is pure acrylic emulsion (model RS 6733); the powder material comprises 16.22 percent of common inorganic cementing material (P.O52.5 Portland cement), 11 percent of early strength inorganic cementing material (P.O52.5 sulphoaluminate cement), 9 percent of quick-hardening inorganic cementing material (first-grade anhydrous anhydrite, manufactured by BOLUO), 43.68 percent of aggregate (quartz sand particles), filler (120-220-mesh quartz sand powder, manufactured by Anhui Zhou new material; 200-325-mesh heavy calcium carbonate powder, manufactured by Changxing Huayuan, a mixture obtained by blending the components in a weight ratio of 1.25: 1) 16 percent, alkali-resistant additive (metakaolin) 2 percent, redispersible latex powder (RE 5044N)2.0 percent and hydroxypropyl methyl cellulose ether (model GMCSF01)0.1 percent;
the particle composition of the aggregate (quartz sand particles) is as follows:
the preparation method comprises the following steps: the two-component ground renovation filling material is prepared by uniformly mixing all the components of the powder according to the proportion and then combining the mixture with a curing agent.
(2) This example also provides a two component retreading filler slurry comprising the two component retreading filler described above and water in a weight ratio of 5: 1.8.
The preparation method comprises the following steps: and mixing water with the curing agent in the bi-component ground renovation filler, and then mixing the mixture with the powder in the bi-component ground renovation filler to obtain the bi-component ground renovation filler slurry.
Example 2
(1) This example provides a two component floor-renovation filling material comprising a powder and a curing agent in a weight ratio of 3: 1. The curing agent is pure acrylic emulsion; the powder comprises 20 percent of common inorganic cementing material, 10 percent of early strength inorganic cementing material, 7 percent of quick-hardening inorganic cementing material, 42.11 percent of aggregate, 15.24 percent of filler, 2.5 percent of alkali-resistant auxiliary agent, 3 percent of redispersible latex powder and 0.15 percent of hydroxypropyl methyl cellulose ether; the specific types of the above components are in keeping with example 1.
The particle size distribution of the aggregate was the same as in example 1.
The preparation method is the same as that of example 1.
(2) This example also provides a two component retreading filler slurry comprising the two component retreading filler described above and water in a weight ratio of 1: 0.3.
The preparation method is the same as that of example 1.
Example 3
(1) This example provides a two component floor-renovation filling material comprising a powder and a curing agent in a weight ratio of 5:1. The curing agent is pure acrylic emulsion; the powder comprises 12.35 percent of common inorganic cementing material, 12 percent of early strength inorganic cementing material, 10 percent of quick-hardening inorganic cementing material, 50.2 percent of aggregate, 12 percent of filler, 1.5 percent of alkali-resistant auxiliary agent, 1.8 percent of redispersible latex powder and 0.15 percent of hydroxypropyl methyl cellulose ether; the specific types of the above components are in keeping with example 1.
The particle size distribution of the aggregate was the same as in example 1.
The preparation method is the same as that of example 1.
(2) This example also provides a two component retreading filler slurry comprising the two component retreading filler described above and water in a weight ratio of 1: 0.4.
The preparation method is the same as that of example 1.
Example 4
(1) This example provides a two component floor-renovation filling material comprising a powder and a curing agent in a weight ratio of 4: 1. The curing agent is pure acrylic emulsion (model RS 6733); the powder material comprises 16 percent of common inorganic cementing material (P.O52.5 Portland cement), 11 percent of early strength inorganic cementing material (P.O52.5 sulphoaluminate cement), 9 percent of quick-hardening inorganic cementing material (first-grade anhydrite, manufactured by BOLUO), 43.68 percent of aggregate (quartz sand particles), 16 percent of filler (120-220-mesh quartz sand powder, manufactured by Anhui Zhongxiao new material; 200-325-mesh heavy calcium carbonate powder, manufactured by Changxing Huayuan), 16 percent of mixture obtained by compounding and mixing in a weight ratio of 1.25:1, 2 percent of alkali-resistant auxiliary agent (metakaolin), 2.0 percent of redispersible latex powder (model RE5044N), 0.1 percent of hydroxypropyl methyl cellulose ether (model GMCSF01), 0.04 percent of water reducing agent (model ZJ-8020), 0.1 percent of defoaming agent (model ZJ-D120), 0.05 percent of retarder (tartaric acid) and 0.03 percent of coagulant (lithium sulfate);
the particle composition of the aggregate (quartz sand particles) is as follows:
the preparation method comprises the following steps: the two-component ground renovation filling material is prepared by uniformly mixing all the components of the powder according to the proportion and then combining the mixture with a curing agent.
(2) This example also provides a two component retreading filler slurry comprising the two component retreading filler described above and water in a weight ratio of 5: 1.8.
The preparation method comprises the following steps: and mixing water with the curing agent in the bi-component ground renovation filler, and then mixing the mixture with the powder in the bi-component ground renovation filler to obtain the bi-component ground renovation filler slurry.
Example 5
(1) This example provides a two component floor-renovation filling material comprising a powder and a curing agent in a weight ratio of 3: 1. The curing agent is pure acrylic emulsion; the powder comprises 20 percent of common inorganic cementing material, 10 percent of early strength inorganic cementing material, 7 percent of quick-hardening inorganic cementing material, 42.11 percent of aggregate, 15 percent of filler, 2.5 percent of alkali-resistant auxiliary agent, 3 percent of redispersible latex powder, 0.15 percent of hydroxypropyl methyl cellulose ether, 0.06 percent of water reducing agent, 0.12 percent of defoaming agent, 0.03 percent of retarder and 0.03 percent of coagulant; the specific type of the above components was kept consistent with example 4.
The particle size distribution of the aggregate was the same as in example 4.
The preparation method is the same as example 4.
(2) This example also provides a two component retreading filler slurry comprising the two component retreading filler described above and water in a weight ratio of 1: 0.3.
The preparation method is the same as example 4.
Example 6
(1) This example provides a two component floor-renovation filling material comprising a powder and a curing agent in a weight ratio of 5:1. The curing agent is pure acrylic emulsion; the powder comprises 12 percent of common inorganic cementing material, 12 percent of early strength inorganic cementing material, 10 percent of quick-hardening inorganic cementing material, 50.2 percent of aggregate, 12 percent of filler, 1.5 percent of alkali-resistant auxiliary agent, 1.8 percent of redispersible latex powder, 0.15 percent of hydroxypropyl methyl cellulose ether, 0.10 percent of water reducing agent, 0.12 percent of defoaming agent, 0.08 percent of retarder and 0.05 percent of coagulant; the specific type of the above components was kept consistent with example 4.
The particle size distribution of the aggregate was the same as in example 4.
The preparation method is the same as example 4.
(2) This example also provides a two component retreading filler slurry comprising the two component retreading filler described above and water in a weight ratio of 1: 0.4.
The preparation method is the same as example 4.
Example 7
(1) This example provides a two component floor-renovation filler which has a formulation composition which differs from that of example 4 only in that the weight ratio of powder to curing agent is 7:1 and the formulation composition of powder and curing agent is the same as that of example 4. The preparation method is the same as example 4.
(2) This example also provides a two component retreading filler slurry comprising the two component retreading filler described above and water in a weight ratio of 5: 1.8. The preparation method is the same as example 4.
Example 8
(1) This example provides a two component floor-renovation filler which has a formulation composition which differs from that of example 4 only in that the weight ratio of powder to curing agent is 1:1 and the formulation composition of powder and curing agent is the same as that of example 4. The preparation method is the same as example 4.
(2) This example also provides a two component retreading filler slurry comprising the two component retreading filler described above and water in a weight ratio of 5: 1.8. The preparation method is the same as example 4.
Example 9
(1) This example provides a two-component floor-renovation filling material whose formulation composition differs from that of example 4 only in "16% of ordinary inorganic cement, 8% of early strength inorganic cement and 12% of fast hardening inorganic cement" in the powder. The other conditions were kept the same as in example 4. The preparation method is the same as example 4.
(2) This example also provides a two component retreading filler slurry comprising the two component retreading filler described above and water in a weight ratio of 5: 1.8. The preparation method is the same as example 4.
Example 10
(1) This example provides a two-component floor-renovation filling material whose formulation composition differs from that of example 4 only in "ordinary inorganic binder 26%, early strength inorganic binder 5%, quick-setting inorganic binder 5% in the powder lot". The other conditions were kept the same as in example 4. The preparation method is the same as example 4.
(2) This example also provides a two component retreading filler slurry comprising the two component retreading filler described above and water in a weight ratio of 5: 1.8. The preparation method is the same as example 4.
Example 11
(1) This example provides a two component floor-renovating filler which has a formulation composition which differs from that of example 4 only in that the particle composition of the quartz sand particles is as follows:
60 meshes or less and 80 meshes or less and 44.85 percent
80 meshes or less and less than 100 meshes of 51.28 percent
The grain is more than or equal to 100 meshes and less than 140 meshes and 3.87 percent.
The other conditions were kept the same as in example 4. The preparation method is the same as example 4.
(2) This example also provides a two component retreading filler slurry comprising the two component retreading filler described above and water in a weight ratio of 5: 1.8. The preparation method is the same as example 4.
Example 12
(1) This example provides a two component floor-renovating filler which has a formulation composition which differs from that of example 4 only in that the particle composition of the quartz sand particles is as follows:
40 meshes or less and less than 60 meshes or less and 55.77 percent
80 meshes or less and less than 100 meshes 40.36 percent
The particle size is less than or equal to 140 meshes and is 3.87 percent.
The other conditions were kept the same as in example 4. The preparation method is the same as example 4.
(2) This example also provides a two component retreading filler slurry comprising the two component retreading filler described above and water in a weight ratio of 5: 1.8. The preparation method is the same as example 4.
Comparative example 1
(1) This comparative example provides a two-component floor-renovation filler whose formulation composition differs from that of example 4 only in that the powder does not contain an early-strength inorganic cementitious material and a quick-setting inorganic cementitious material, and the addition amount of a normal-type inorganic cementitious material is 36% of the sum of the addition amounts of the normal-type inorganic cementitious material, the early-strength inorganic cementitious material and the quick-setting inorganic cementitious material in example 4. The other conditions were kept the same as in example 4. The preparation method is the same as example 4.
(2) This comparative example also provides a two component retread filler slurry comprising the two component retread filler described above and water in a weight ratio of 5: 1.8. The preparation method is the same as example 4.
Comparative example 2
(1) This comparative example provides a two-component floor-renovation filler whose formulation composition differs from that of example 4 only in that the powder does not contain an early-strength inorganic cementitious material and in that the addition of a normal inorganic cementitious material is the sum of the addition of a normal inorganic cementitious material and an early-strength inorganic cementitious material in example 4, i.e. 27%. The other conditions were kept the same as in example 4. The preparation method is the same as example 4.
(2) This comparative example also provides a two component retread filler slurry comprising the two component retread filler described above and water in a weight ratio of 5: 1.8. The preparation method is the same as example 4.
Comparative example 3
(1) This comparative example provides a two-component floor-renovation filling material whose formulation composition differs from that of example 4 only in that the powder does not contain a fast-hardening inorganic gelling material, and in that the addition amount of a normal-type inorganic gelling material is 25% of the sum of the addition amounts of the normal-type inorganic gelling material and the fast-hardening inorganic gelling material in example 4. The other conditions were kept the same as in example 4. The preparation method is the same as example 4.
(2) This comparative example also provides a two component retread filler slurry comprising the two component retread filler described above and water in a weight ratio of 5: 1.8. The preparation method is the same as example 4.
Comparative example 4
(1) This comparative example provides a single-component retread filler formulated with a composition that differs from example 4 only in that it does not contain a curing agent component, and the powder is formulated as in example 4. The other conditions were kept the same as in example 4. The preparation method is the same as example 4.
(2) This comparative example also provides a one-component retread filler slurry comprising the above one-component retread filler and water in a weight ratio of 5: 1.8. The preparation method is the same as example 4.
Evaluation test:
the slurries prepared in examples 1 to 12 and comparative examples 1 to 4 were subjected to the following performance index tests in accordance with JC/T985-.
TABLE 1
Note: "operable time" is one of the indexes for evaluating workability of the slurry, and the shorter the time, the more likely the quick drying occurs; the detection method of the flexibility grade refers to a test method of index 'flexibility of putty film' in JG/T157-containing 2009, and automatically manufactures arch moulds with diameters of 60 mm, 70 mm, 80 mm and 90mm, and divides the flexibility grade, wherein the smaller the diameter, the better the flexibility grade.
As can be seen from the data in Table 1, the slurry of the two-component retreading filler material of the present invention has good initial fluidity (not less than 130mm), 20min fluidity (not less than 133mm), workability (operable time 1.0-2.5h), tensile bond strength (not less than 0.9MPa), flexibility grade, 24h compressive strength (not less than 6.4MPa), 24h flexural strength (not less than 2.6MPa), 28d compressive strength (not less than 18.7MPa) and 28d flexural strength (not less than 5.0 MPa).
From a comparison of examples 1 to 3 and examples 4 to 6: the addition of the water reducing agent, the defoaming agent, the retarder and the coagulant improves the initial fluidity, the fluidity in 20min and the operability of the slurry to a certain extent, thereby improving the workability of the slurry and simultaneously greatly improving the tensile bonding strength and the early strength (the 24h compressive strength and the 24h flexural strength).
From a comparison of example 4 and examples 7-8, it can be seen that: the proportion of the powder and the curing agent obviously influences the initial fluidity, the 20min fluidity and the operable time of the slurry, thereby influencing the workability, if the content of the curing agent is higher, the slurry is easy to dry quickly, and if the content of the curing agent is lower, the overall strength of the slurry is lower.
From a comparison of example 4 and examples 9-10, it can be seen that: reasonable gel material gradation can obtain better fluidity, operable time, flexibility and strength.
From a comparison of example 4 and examples 11 to 12, it can be seen that: reasonable aggregate grading is beneficial to the slurry to obtain balanced fluidity, flexibility and strength, and if the aggregate is too coarse or has faults, the fluidity and the flexibility of the slurry are seriously influenced, and even the phenomenon of unqualified flexibility can occur.
From a comparison of example 1 and comparative examples 1 to 3, it can be seen that: when the two-component ground renovation filler slurry only adopts the common inorganic cementing material or only uses the common inorganic cementing material to match with one of the early-strength inorganic cementing material and the quick-hardening inorganic cementing material, the tensile bonding strength, the 24h compressive strength and the 24h rupture strength of the prepared two-component ground renovation filler slurry can be greatly reduced, so that the requirements of simplifying construction procedures, improving construction efficiency, shortening construction period and reducing labor cost can not be met.
From a comparison of example 1 and comparative example 4, it can be seen that: if the ground renovation filling material is not designed to be a double component, namely, the product is only a single component without adding an emulsion component, the fluidity of the prepared single component ground renovation filling material slurry seriously does not meet the actual construction requirement, and the 24h compressive strength, the 24h flexural strength, the 28d compressive strength and the 28d flexural strength can not meet the basic construction requirement.
The applicant states that the present invention is illustrated by the above examples as a two component floor-renovating filler, a two component floor-renovating filler slurry and a method for its preparation and use, but the present invention is not limited to the above examples, i.e. it is not intended that the present invention necessarily depends on the above examples for its implementation. It should be understood by those skilled in the art that any modification of the present invention, equivalent substitutions of the raw materials of the product of the present invention, addition of auxiliary components, selection of specific modes, etc., are within the scope and disclosure of the present invention.
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
Claims (10)
1. A two-component floor-renovating filling material, characterized in that it comprises a powder and a curing agent;
the powder material comprises a common inorganic cementing material, an early-strength inorganic cementing material, a quick-hardening inorganic cementing material, aggregate, filler, an alkali-resistant auxiliary agent, redispersible latex powder and hydroxypropyl methyl cellulose ether;
the curing agent comprises an emulsion.
2. The two-component floor renewal material of claim 1 wherein the weight ratio of powder to curing agent is (3-5) 1;
preferably, the powder material comprises 12.0-20.0% of common inorganic cementing material, 10.0-15.0% of early strength inorganic cementing material, 5.0-10.0% of quick-hardening inorganic cementing material, 40.0-55.0% of aggregate, 12.0-22.0% of filler, 1.0-3.0% of alkali-resistant auxiliary agent, 1.0-3.5% of redispersible latex powder and 0.05-0.15% of hydroxypropyl methyl cellulose ether by weight percentage.
3. The two-component floor-renovation filling material of claim 1, wherein the powder material further comprises any one of or a combination of at least two of a water reducing agent 0.03 to 0.10%, an antifoaming agent 0.08 to 0.15%, a retarder 0.03 to 0.08%, or a set accelerator 0.01 to 0.06%, by weight.
4. The two-component floor renovation filling material of claim 1, wherein the common type inorganic cementitious material comprises Portland cement P.O42.5 and above;
preferably, the early strength inorganic cementitious material comprises a sulphoaluminate cement;
preferably, the sulphoaluminate cement is P.O42.5 or above sulphoaluminate cement;
preferably, the fast hardening inorganic cementitious material comprises anhydrite.
5. The two-component floor renovation filling material of claim 1, wherein the aggregate is 40-140 mesh quartz sand;
preferably, the grain composition of the 40-140 mesh quartz sand is as follows:
preferably, the filler comprises quartz sand and/or ground calcium carbonate;
preferably, the mesh number of the quartz sand is 120-220 meshes; the mesh number of the heavy calcium carbonate is 200-325 meshes;
preferably, the anti-alkali additive comprises metakaolin and/or a saltpetering inhibitor;
preferably, the viscosity of the hydroxypropyl methyl cellulose ether is 300-10000 mPa.s;
preferably, the emulsion comprises a pure acrylic emulsion.
6. The two-component floor refreshment supplement of claim 3, wherein the set retarder comprises tartaric acid and/or sodium citrate;
preferably, the coagulant comprises lithium sulfate.
7. A method of preparing a two-component retreading material as claimed in any one of claims 1 to 6, wherein the method of preparation comprises:
mixing common inorganic cementing materials, early-strength inorganic cementing materials, quick-hardening inorganic cementing materials, aggregates, fillers, alkali-resistant auxiliaries, redispersible latex powder and hydroxypropyl methyl cellulose ether according to a ratio to obtain powder, and forming the bi-component ground renovation filling material together with a curing agent.
8. A two component floor renovation filler slurry comprising a two component floor renovation filler according to any of the claims 1-6 and water in a weight ratio of 1 (0.3-0.4).
9. The method of preparing a two component retread filler slurry as recited in claim 8, wherein the method of preparation comprises: mixing water with a curing agent in the bi-component ground renovation filler, and then mixing the water with powder in the bi-component ground renovation filler to obtain bi-component ground renovation filler slurry;
preferably, the temperature of the mixing is 5-40 ℃.
10. Use of a two component floor renovation filling material according to any of the claims 1-6 or a two component floor renovation filling slurry according to claim 8 for the renovation of old construction;
preferably, the building old floor is an old tile floor.
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