阅读说明：本技术 一种双组分地面翻新填补料、双组分地面翻新填补料浆料及其制备方法和应用 (Bi-component ground renovation filling material, bi-component ground renovation filling material slurry and preparation method and application thereof ) 是由 张瑜瑜 魏志伟 吴松涛 陈越 李金钟 于 2019-11-20 设计创作，主要内容包括：本发明涉及一种双组分地面翻新填补料、双组分地面翻新填补料浆料及其制备方法和应用。所述双组分地面翻新填补料包括粉料和固化剂；所述粉料包括普通型无机胶凝材料、早强型无机胶凝材料、快硬型无机胶凝材料、骨料、填料、抗碱助剂、可再分散乳胶粉、羟丙基甲基纤维素醚；所述固化剂包括乳液。该双组分地面翻新填补料(或浆料)具有高柔韧性、高附着力、绿色环保等优异性能,与旧基面(特别是旧瓷砖基面)和地坪材料间具有优异的双向配套性,全效保障地坪体系的耐久性与安全性。(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.)

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.

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.