CN114920482A - Preparation method of cement reaction type white sand - Google Patents
Preparation method of cement reaction type white sand Download PDFInfo
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- CN114920482A CN114920482A CN202210577381.4A CN202210577381A CN114920482A CN 114920482 A CN114920482 A CN 114920482A CN 202210577381 A CN202210577381 A CN 202210577381A CN 114920482 A CN114920482 A CN 114920482A
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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
- C04B20/10—Coating or impregnating
- C04B20/12—Multiple coating or impregnating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to the technical field of high polymer waterproof coiled materials, in particular to a preparation method of cement reaction type white sand, which comprises the steps of reacting type white sand, the reactive white sand comprises a component A, a component B and a component C, wherein the component A is aggregate, the component B is coating, the component C is powder, uniformly coating the liquid material and the powder material on the aggregate by layering, coating natural edges and sharp protrusions on the surface of the original aggregate to be round, thereby improving the strength and the ultraviolet resistance of the surface of the finished sand and the stripping resistance of post-cast concrete, ensuring that the surface of the reaction sand has high whiteness and cleanliness, the surface is beautiful and has high whiteness and concave-convex texture after being attached, the B component coating can be firmly attached to the surface of the aggregate of the A component in the process of mixing and stirring with the A component to form a wet and sticky intermediate isolation layer, so that the water resistance, the weather resistance and the ultraviolet-resistant aging resistance of the aggregate are improved.
Description
Technical Field
The invention relates to the technical field of high-molecular waterproof coiled materials, in particular to a preparation method of cement reaction type white sand.
Background
As is well known, white sand is a sandstone made in China, and is produced in inner Mongolia of China. It is applied to the fields of indoor and outdoor high-grade decoration, components and the like.
The natural edges and corners of the aggregate of the existing white sand are sharp, the stripping resistance is poor, the aggregate is often separated from post-cast concrete, and the existing white sand has poor water resistance, weather resistance and ultraviolet resistance and aging resistance.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a preparation method of cement reaction type white sand, which has the effects of rounded edges, good anti-stripping effect and strong anti-aging performance.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a preparation method of cement reaction type white sand comprises reaction type white sand, wherein the reaction type white sand comprises a component A, a component B and a component C, the component A is aggregate, the component B is coating, and the component C is powder;
the component A comprises but is not limited to natural sand such as 10-85 meshes of silicon magnesia sand and quartz sand and mixed sand of synthetic sand such as mullite sand, ceramsite sand and corundum, wherein the grading of various meshes comprises but is not limited to 10-40 meshes, 30-70 meshes, 30-80 meshes, 40-60 meshes, 40-70 meshes and 40-80 meshes;
the component B comprises, by mass, 30-50 parts of water, 10-30 parts of water-based latex, 0.5-5 parts of a pH regulator, 10-20 parts of triple superphosphate, 30-50 parts of 42.5 or 52.5-grade silicate white cement, 2-5 parts of titanium dioxide, 1-2 parts of an ultraviolet-resistant absorbent, 0.1-0 and 3 parts of a water reducing agent, 0.2-0.5 part of an accelerating agent and 0.01-0.05 part of a defoaming agent;
70-200 parts of 42.5 or 52.5-grade silicate white cement, 1-5 parts of cellulose and 1-5 parts of emulsion powder, wherein the component C can be firmly attached to the surface of reaction sand after being stirred and mixed with a mixture of the component A and the component B, and a round and hard outer protection layer with the thickness of 0.1-0.15 mm is quickly formed through the reaction of the cement and water.
The preparation method of the reactive white sand comprises the following steps:
sequentially adding water, coarse whiting, silicate white cement, titanium dioxide, an ultraviolet-resistant absorbent, a water reducer and an accelerating agent into dispersing equipment for high-speed stirring, adding water-based latex and a pH regulator after uniformly stirring for low-speed stirring, adding a defoaming agent after uniformly mixing the materials, and then, performing low-speed stirring again to remove fine foams in the coating to obtain a component B for later use;
stirring and mixing cement, cellulose and latex powder according to a proportion for later use;
the method comprises the steps of putting the component A into stirring equipment according to gradation for pre-stirring, uniformly mixing an aggregate part, then putting the component B into a coating of the component B for stirring, observing the surface humidity and viscosity of the mixture after the mixture is uniform, then putting the component C into a special curing box for stirring and mixing, putting the mixture into a special curing box for a first curing reaction process after the component C is fully and uniformly wrapped, naturally removing excessive water in curing of cement contained in the component B and the component C, saving the drying process, reducing the energy consumption of the drying equipment, carrying out first screening after the cement is initially set, removing excessive impurities and sand grains with excessively large and small meshes, then putting the mixture into the curing box for a second curing reaction, wherein the reaction aims to fully dry the cement component and the emulsion component so as to form a solid outer protective layer on the sand surface, and carrying out final screening after the second curing reaction is finished so as to obtain the cement reaction type white sand with standard mesh gradation.
Further, the mass ratio of the component A to the component B to the component C is 10: 1.2-1.7: 0.7 to 2.0.
Furthermore, the water-based latex in the component B is water-based acrylic emulsion or EVA emulsion, the solid content needs to reach 50% or more, the heavy calcium mesh number is more than or equal to 300 meshes, and the titanium dioxide is rutile titanium dioxide.
Further, the component B is stirred and attached to the surface of the component A to form a damp and sticky intermediate isolation layer.
Furthermore, the cement in the coating reacts with water to consume a part of water, so that the coating is favorable for film forming and drying, and the adhesion with the subsequent component C is avoided.
Further, liquid materials and powder materials are uniformly wrapped on the aggregate in a layered mode.
(III) advantageous effects
Compared with the prior art, the invention provides a preparation method of cement reaction type white sand, which has the following beneficial effects:
according to the preparation method of the cement reaction type white sand, liquid materials and powder materials are uniformly coated on the aggregate in a layering manner, and natural edges and corners and sharp protrusions on the surface of the original aggregate are coated and rounded, so that the strength and the ultraviolet resistance of the surface of finished sand and the anti-stripping performance of post-cast concrete are improved, the whiteness and the cleanliness of the surface of the reaction sand are high, the surface is attractive and high in whiteness and has a concave-convex texture after attachment.
The B component coating can be firmly attached to the surface of the A component aggregate in the mixing and stirring process with the A component to form a damp and sticky middle isolation layer, and meanwhile, cement in the coating reacts with water to consume a part of moisture, so that the coating is favorable for film forming and drying, and the phenomena that the coating is adhered with the follow-up C component powder, the powder is not uniformly adhered and cannot be dried for a long time are avoided. The problem of need long-time drying equipment of using because drying time is long is solved, the energy consumption is reduced. Meanwhile, the intermediate isolation layer can improve the water resistance, weather resistance and ultraviolet resistance and aging resistance of the aggregate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The preparation method of the cement reaction type white sand comprises reaction type white sand, wherein the reaction type white sand comprises a component A, a component B and a component C, the component A is aggregate, the component B is coating, the component C is powder, and the mass ratio of the component A to the component B to the component C is 10: 1.2-1.7: 0.7 to 2.0.
Liquid materials and powder materials are uniformly wrapped on the aggregate in a layered mode, natural edges and corners and sharp protrusions on the surface of the original aggregate are wrapped and rounded, the strength and the ultraviolet resistance of the surface of finished sand and the anti-stripping performance of post-cast concrete are improved, the whiteness and the cleanliness of the surface of reaction sand are high, the surface is attractive after attachment, the whiteness is high, and the concave-convex texture is achieved.
The component A comprises but is not limited to natural sand such as 10-85 meshes of silicon magnesia sand and quartz sand and mixed sand of synthetic sand such as mullite sand, ceramsite sand and corundum, wherein the grading of various meshes comprises but is not limited to 10-40 meshes, 30-70 meshes, 30-80 meshes, 40-60 meshes, 40-70 meshes and 40-80 meshes.
The component B comprises, by mass, 30-50 parts of water, 10-30 parts of water-based latex, 0.5-5 parts of a pH regulator, 10-20 parts of triple superphosphate, 30-50 parts of 42.5 or 52.5-grade silicate white cement, 2-5 parts of titanium dioxide, 1-2 parts of an ultraviolet-resistant absorbent, 0.1-0 and 3 parts of a water reducing agent, 0.2-0.5 part of an accelerating agent and 0.01-0.05 part of a defoaming agent.
The water-based latex in the component B is water-based acrylic emulsion or EVA emulsion, the solid content needs to reach 50% or more, the heavy calcium mesh number is more than or equal to 300 meshes, and rutile titanium dioxide is adopted as titanium dioxide.
The component B can be firmly attached to the surface of the component A in the process of mixing and stirring with the component A to form a wet and sticky intermediate isolation layer, meanwhile, cement in the coating reacts with water to consume part of water, so that the coating is favorable for film forming and drying, the phenomenon that powder is bonded unevenly and cannot be dried for a long time is avoided, the problem that drying equipment needs to be used for a long time due to long drying time is solved, the energy consumption is reduced, and meanwhile, the intermediate isolation layer can improve the water resistance, weather resistance and ultraviolet resistance and aging resistance of the aggregate.
The composition comprises a component C, 70-200 parts of 42.5 or 52.5-grade silicate white cement, 1-5 parts of cellulose and 1-5 parts of emulsion powder, wherein the component C can be firmly attached to the surface of reaction sand after being stirred and mixed with a mixture of the component A and the component B to quickly form a 0.1-0.15 mm round and hard outer protection layer through the reaction of cement and water.
The preparation method of the cement reaction type white sand comprises the following steps:
sequentially adding water, coarse whiting, silicate white cement, titanium dioxide, an ultraviolet-resistant absorbent, a water reducer and an accelerating agent into dispersing equipment for high-speed stirring, adding water-based latex and a pH regulator after uniformly stirring for low-speed stirring, adding a defoaming agent after uniformly mixing, and then, performing low-speed stirring again to remove fine foams in the coating to obtain a component B for later use.
The cement, the cellulose and the latex powder are stirred and mixed according to the proportion for standby.
The method comprises the steps of putting a component A into stirring equipment according to gradation for pre-stirring, uniformly mixing an aggregate part, then putting a component B coating into a special curing box for stirring, observing the surface humidity and viscosity of the mixture after the mixture is uniform, then putting a component C into the stirring equipment for stirring and mixing, putting the mixture into a special curing box for a first curing reaction process after the component C is fully and uniformly wrapped, naturally removing excessive water in the curing process of cement contained in the component B and the component C, omitting a drying process, reducing the energy consumption of the drying equipment, carrying out first screening after the cement is initially set, removing excessive impurities and sand grains with excessively large and small meshes, then putting the mixture into the curing box for a second curing reaction, wherein the reaction is carried out for fully drying the cement component and an emulsion component so as to form a solid outer protective layer on the surface of the sand, and carrying out final screening after the second curing reaction is finished so as to obtain the cement reaction type white sand with standard mesh gradation.
The finished cement reaction type white sand comprises 10-20% of a mixed functional outer protective layer of a component B and a component C, the surface is smooth and has no edges and corners, and the color is white and has no other foreign matters or impurity color particles.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A preparation method of cement reaction type white sand is characterized by comprising the following steps: the reactive white sand comprises a component A, a component B and a component C, wherein the component A is aggregate, the component B is coating, and the component C is powder;
the component A comprises but is not limited to natural sand such as 10-85 mesh silicon magnesia sand, quartz sand and the like and mixed sand of synthetic sand such as mullite sand, ceramsite sand, corundum and the like, wherein the grading of various meshes comprises but is not limited to 10-40 mesh, 30-70 mesh, 30-80 mesh, 40-60 mesh, 40-70 mesh and 40-80 mesh;
the component B comprises, by mass, 30-50 parts of water, 10-30 parts of water-based latex, 0.5-5 parts of a pH regulator, 10-20 parts of triple superphosphate, 30-50 parts of 42.5 or 52.5-grade silicate white cement, 2-5 parts of titanium dioxide, 1-2 parts of an ultraviolet-resistant absorbent, 0.1-0 and 3 parts of a water reducing agent, 0.2-0.5 part of an accelerating agent and 0.01-0.05 part of a defoaming agent;
70-200 parts of 42.5 or 52.5-grade silicate white cement, 1-5 parts of cellulose and 1-5 parts of emulsion powder, wherein the component C can be firmly attached to the surface of reaction sand after being stirred and mixed with a mixture of the component A and the component B, and a round and hard outer protection layer with the thickness of 0.1-0.15 mm is quickly formed through the reaction of the cement and water;
the preparation method of the reactive white sand comprises the following steps:
sequentially adding water, coarse whiting, silicate white cement, titanium dioxide, an ultraviolet-resistant absorbent, a water reducer and an accelerating agent into dispersing equipment for high-speed stirring, adding water-based latex and a pH regulator after uniformly stirring for low-speed stirring, adding a defoaming agent after uniformly mixing the materials, and then, performing low-speed stirring again to remove fine foams in the coating to obtain a component B for later use;
stirring and mixing cement, cellulose and latex powder according to a proportion for later use;
the method comprises the steps of putting the component A into stirring equipment according to gradation for pre-stirring, uniformly mixing an aggregate part, then putting the component B into a coating of the component B for stirring, observing the surface humidity and viscosity of the mixture after the mixture is uniform, then putting the component C into a special curing box for stirring and mixing, putting the mixture into a special curing box for a first curing reaction process after the component C is fully and uniformly wrapped, naturally removing excessive water in curing of cement contained in the component B and the component C, saving the drying process, reducing the energy consumption of the drying equipment, carrying out first screening after the cement is initially set, removing excessive impurities and sand grains with excessively large and small meshes, then putting the mixture into the curing box for a second curing reaction, wherein the reaction aims to fully dry the cement component and the emulsion component so as to form a solid outer protective layer on the sand surface, and carrying out final screening after the second curing reaction is finished so as to obtain the cement reaction type white sand with standard mesh gradation.
2. The method for preparing cement reactive white sand according to claim 1, wherein the method comprises the following steps: the mass ratio of the component A to the component B to the component C is 10: 1.2-1.7: 0.7 to 2.0.
3. The method for preparing cement reactive white sand according to claim 1, wherein the method comprises the following steps: the water-based latex in the component B is water-based acrylic emulsion or EVA emulsion, the solid content needs to reach 50% or more, the heavy calcium mesh number is more than or equal to 300 meshes, and rutile titanium dioxide is adopted as titanium dioxide.
4. The method for preparing the cement reactive white sand according to claim 1, wherein the method comprises the following steps: the component B is stirred and attached to the surface of the component A to form a damp and sticky intermediate isolation layer.
5. The method for preparing the cement reactive white sand according to claim 1, wherein the method comprises the following steps: the cement in the coating reacts with water to consume a part of water, so that the coating is favorable for film forming and drying, and the adhesion with the subsequent component C is avoided.
6. The method for preparing the cement reactive white sand according to claim 1, wherein the method comprises the following steps: liquid materials and powder materials are uniformly coated on the aggregate in a layered manner.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210577381.4A CN114920482A (en) | 2022-05-26 | 2022-05-26 | Preparation method of cement reaction type white sand |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210577381.4A CN114920482A (en) | 2022-05-26 | 2022-05-26 | Preparation method of cement reaction type white sand |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4035192A (en) * | 1975-08-14 | 1977-07-12 | Busacca Joseph P | Cement and aggregate mixture and method for making same |
| US4238242A (en) * | 1979-01-22 | 1980-12-09 | Park Jae H | Lightweight aggregates, intermediate aggregates, and process of manufacturing same |
| GB9805998D0 (en) * | 1998-03-21 | 1998-05-20 | Al Nageim Hassan | Modified aggregates for use in pavement construction |
| CN110105010A (en) * | 2018-02-01 | 2019-08-09 | 广东清大同科环保技术有限公司 | Artificial permeable cobblestone of one kind and preparation method thereof |
| CN111943545A (en) * | 2020-07-29 | 2020-11-17 | 广东省水利水电科学研究院 | Artificial sand and preparation method thereof |
| CN112851173A (en) * | 2021-02-05 | 2021-05-28 | 王清娜 | Composite isolation protective sand and preparation method thereof |
| CN113773112A (en) * | 2021-09-03 | 2021-12-10 | 天津市禹神建筑防水材料有限公司 | Rigid waterproof type isolation sand special for pre-paved waterproof coiled material and preparation method thereof |
-
2022
- 2022-05-26 CN CN202210577381.4A patent/CN114920482A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4035192A (en) * | 1975-08-14 | 1977-07-12 | Busacca Joseph P | Cement and aggregate mixture and method for making same |
| US4238242A (en) * | 1979-01-22 | 1980-12-09 | Park Jae H | Lightweight aggregates, intermediate aggregates, and process of manufacturing same |
| GB9805998D0 (en) * | 1998-03-21 | 1998-05-20 | Al Nageim Hassan | Modified aggregates for use in pavement construction |
| CN110105010A (en) * | 2018-02-01 | 2019-08-09 | 广东清大同科环保技术有限公司 | Artificial permeable cobblestone of one kind and preparation method thereof |
| CN111943545A (en) * | 2020-07-29 | 2020-11-17 | 广东省水利水电科学研究院 | Artificial sand and preparation method thereof |
| CN112851173A (en) * | 2021-02-05 | 2021-05-28 | 王清娜 | Composite isolation protective sand and preparation method thereof |
| CN113773112A (en) * | 2021-09-03 | 2021-12-10 | 天津市禹神建筑防水材料有限公司 | Rigid waterproof type isolation sand special for pre-paved waterproof coiled material and preparation method thereof |
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Application publication date: 20220819 |