CN108529911B - Environment-friendly building cement - Google Patents
Environment-friendly building cement Download PDFInfo
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- CN108529911B CN108529911B CN201810633301.6A CN201810633301A CN108529911B CN 108529911 B CN108529911 B CN 108529911B CN 201810633301 A CN201810633301 A CN 201810633301A CN 108529911 B CN108529911 B CN 108529911B
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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
- C04B7/00—Hydraulic cements
- C04B7/14—Cements containing slag
- C04B7/147—Metallurgical slag
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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Abstract
The invention discloses environment-friendly building cement which is prepared from the following components in parts by weight: 55-65 parts of cement clinker, 5-10 parts of modified hair fiber, 3-8 parts of nano boron fiber, 10-15 parts of olivine powder, 1-5 parts of rare earth slag and 1-5 parts of functional additive; the functional additive is prepared by carrying out solution copolymerization on vinyl boronic acid pinacol ester, vinyl dimethyl phosphate, methyl acrylate and trans-zeatin glucoside. The environment-friendly building cement disclosed by the invention has the advantages of stable performance, strong binding power and cement strength, better comprehensive performances such as hydration efficiency, grinding-assisting effect and workability compared with the traditional cement.
Description
Technical Field
The invention relates to the technical field of concrete admixtures, in particular to a concrete additive and a preparation method thereof.
Background
With the development of economy and the progress of society, various high-rise buildings and bridges and tunnels emerge like bamboo shoots in the spring after rain, and the use of the building material, namely cement, cannot be used behind the large-scale building engineering. Cement is a powdered hydraulic inorganic cementing material. The water is added and stirred to form slurry which can be hardened in the air or better hardened in the water and can firmly bond sand, stone and other materials together. It is one of three basic materials in the building industry, has large usage amount and wide application range, and is called as 'grains in the building industry'. Because of relatively excellent performance and low production cost, the material has wide application in the fields of urban infrastructure construction, marine engineering construction, national defense engineering construction and the like.
People use cement to build high-rise buildings, pave roads, erect bridges, build subways and the like, carry out large-scale construction activities of human social infrastructure, and greatly improve the living, working and traveling environments of human beings, however, the use of cement brings great convenience to human beings, and meanwhile, huge negative effects are brought to the ecological environment of people. And the accelerated development of cities drives the development of the cement industry, the consumption of cement is increased year by year, and slag for producing cement becomes a scarce material and a substitute is required to be found.
In the process of manufacturing the cement on the market at present, the problems of coal consumption and material consumption are serious, the production process is complex, not only is the resource waste caused, but also the environment pollution is caused, and the manufacturing cost of enterprises is increased. And the strength, the grinding aiding effect, the hydration efficiency and the workability of the cement are all to be improved.
Therefore, the development of cement which has excellent comprehensive performance, accords with the strategy of sustainable development and can save energy and reduce emission is imperative.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the environment-friendly building cement which has easily available raw materials, can change the fluorine-containing sludge which is difficult to treat into valuable, reduces the use amount of cement clinker, not only opens up a new way for treating fluorine-containing waste materials, but also can save the cost; the prepared environment-friendly building cement has stable performance, strong binding power and cement strength, better comprehensive performance than the traditional cement, such as hydration efficiency, grinding-assisting effect, workability and the like.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: the environment-friendly building cement is prepared from the following components in parts by weight: 55-65 parts of cement clinker, 5-10 parts of modified hair fiber, 3-8 parts of nano boron fiber, 10-15 parts of olivine powder, 1-5 parts of rare earth slag and 1-5 parts of functional additive;
the functional additive is prepared by carrying out solution copolymerization on vinyl boronic acid pinacol ester, vinyl dimethyl phosphate, methyl acrylate and trans-zeatin glucoside.
Preferably, the method for preparing the modified hair fiber comprises the following steps:
i, dispersing the cut hair fibers in ethanol to form a dispersion, adding gamma-glycidoxypropyltrimethoxysilane, stirring at room temperature for reaction for 3-5 hours, filtering, washing with ethanol for 3-5 times, and drying in a vacuum drying oven at 70-80 ℃ for 10-12 hours to obtain epoxy group modified hair fibers;
and II, dispersing the epoxy group modified hair fiber prepared in the step I in an organic solvent to form a dispersion liquid, adding chitosan and a catalyst, stirring and reacting for 4-6 hours at 70-80 ℃, then performing suction filtration, washing the product for 3-5 times by using dichloromethane, and then placing the product in a vacuum drying oven for drying for 10-12 hours at 70-80 ℃ to obtain the modified hair fiber.
Preferably, the mass ratio of the hair fiber, the ethanol and the gamma-glycidoxypropyltrimethoxysilane in the step I is (3-5): 15-20): 0.2.
Preferably, the mass ratio of the epoxy group modified hair fiber, the organic solvent, the chitosan and the catalyst in the step II is (2-4): (10-15): (0.5-1): 0.3.
Preferably, the organic solvent is selected from one or more of ethanol, isopropanol, dichloromethane and acetone; the catalyst is selected from one or more of triethylamine, tetrabutylammonium bromide and triphenylphosphine.
Preferably, the preparation method of the functional additive comprises the following steps: dissolving vinyl boronic acid pinacol ester, vinyl dimethyl phosphate, methyl acrylate and trans-zeatin glucoside in a high-boiling-point solvent to form a solution, adding an initiator into the solution, stirring and reacting for 2 to 3 hours at the temperature of between 60 and 70 ℃ in a nitrogen atmosphere, precipitating in acetone, washing for 3 to 5 times by using the acetone, removing the solvent by rotary evaporation, and grinding into powder to obtain the functional additive.
Preferably, the mass ratio of the vinyl pinacol ester borate, the vinyl dimethyl phosphate, the methyl acrylate, the trans-zeatin glucoside, the high-boiling-point solvent and the initiator is 1:1:1:2 (10-15) and 0.05.
Preferably, the high boiling point solvent is selected from one or more of dimethyl sulfoxide, N-methyl pyrrolidone and N, N-dimethylformamide; the initiator is selected from one or more of azobisisobutyronitrile and azobisisoheptonitrile.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
1) the environment-friendly building cement provided by the invention has the advantages that the raw materials are easy to obtain, the fluorine-containing sludge which is difficult to treat can be changed into valuable, the use amount of cement clinker is reduced, a new way for treating fluorine-containing waste is developed, the cost can be saved, the requirements of sustainable development strategy are met, and the effects of energy conservation and emission reduction can be achieved.
2) The environment-friendly building cement provided by the invention overcomes the technical problems of serious coal consumption and material consumption of the traditional cement in the prior art, complex production process, resource waste, environmental pollution and increase of the manufacturing cost of enterprises, and the cement has poor strength, grinding aid effect, hydration efficiency and workability, and has the advantages of stable performance, strong binding power and cement strength, better comprehensive performances of hydration efficiency, grinding aid effect and workability and the like.
3) The environment-friendly building cement provided by the invention has excellent comprehensive performance through reasonable compatibility of all components, can be synergistically acted with nano boron fiber to play a role in enhancing the strength of the cement through the addition of the chitosan modified hair fiber, and can coat ions in the hydration process of the cement by using the nano material and the chitosan to form a protective film on the surface of the cement to compact the hydration microstructure of the cement concrete and improve the early strength.
4) According to the environment-friendly building cement provided by the invention, the functional additive contains borate, phosphate glucoside and acrylate structures, and is hydrolyzed in the actual application process to obtain corresponding acid radical structures, so that the stability of a concrete structure is favorably prevented, the collapse of the concrete structure is prevented, the PH is favorably adjusted, and meanwhile, the functions of an alkali inhibitor, a water reducer and a grinding aid are realized.
Detailed Description
In order to make the technical solutions of the present invention better understood and make the above features, objects, and advantages of the present invention more comprehensible, the present invention is further described with reference to the following examples. The examples are intended to illustrate the invention only and are not intended to limit the scope of the invention.
The raw materials described in the following examples of the present invention are from Shanghai spring Xin import & export trade company, Inc.
Example 1
The environment-friendly building cement is prepared from the following components in parts by weight: 55 parts of cement clinker, 5 parts of modified hair fiber, 3 parts of nano boron fiber, 10 parts of olivine powder, 1 part of rare earth slag and 1 part of functional additive;
the functional additive is prepared by carrying out solution copolymerization on vinyl boronic acid pinacol ester, vinyl dimethyl phosphate, methyl acrylate and trans-zeatin glucoside.
The preparation method of the modified hair fiber comprises the following steps:
i, dispersing 30g of cut hair fibers in 150g of ethanol to form a dispersion, adding 2g of gamma-glycidoxypropyltrimethoxysilane, stirring at room temperature for reaction for 3 hours, filtering, washing with ethanol for 3 times, and drying in a vacuum drying oven at 70 ℃ for 10 hours to obtain epoxy group modified hair fibers;
and II, dispersing 20g of the epoxy group modified hair fiber prepared in the step I in 100g of ethanol to form a dispersion, adding 5g of chitosan and 3g of triethylamine into the dispersion, stirring and reacting for 4 hours at 70 ℃, then performing suction filtration, washing the product for 3 times by using dichloromethane, and then placing the product in a vacuum drying oven for drying for 10 hours at 70 ℃ to obtain the modified hair fiber.
The preparation method of the functional additive comprises the following steps: 10g of vinyl boronic acid pinacol ester, 10g of vinyl dimethyl phosphate, 10g of methyl acrylate and 20g of trans-zeatin glucoside are dissolved in 100g of dimethyl sulfoxide to form a solution, 0.5g of azobisisobutyronitrile is added into the solution, the solution is stirred and reacted for 2 hours at the temperature of 60 ℃ in the nitrogen atmosphere, then the solution is precipitated in acetone, the acetone is used for washing for 3 times, the solvent is removed by rotary evaporation, and the solution is ground into powder to obtain the functional additive.
Example 2
The environment-friendly building cement is prepared from the following components in parts by weight: 58 parts of cement clinker, 7 parts of modified hair fiber, 5 parts of nano boron fiber, 12 parts of olivine powder, 2 parts of rare earth slag and 2 parts of functional additive;
the functional additive is prepared by carrying out solution copolymerization on vinyl boronic acid pinacol ester, vinyl dimethyl phosphate, methyl acrylate and trans-zeatin glucoside.
The preparation method of the modified hair fiber comprises the following steps:
i, dispersing 35g of cut hair fibers in 170g of ethanol to form a dispersion, adding 2g of gamma-glycidoxypropyltrimethoxysilane, stirring at room temperature to react for 3.5 hours, filtering, washing with ethanol for 4 times, and drying in a vacuum drying oven at 73 ℃ for 10.5 hours to obtain epoxy group modified hair fibers;
II, dispersing 25g of the epoxy group modified hair fiber prepared in the step I in 130g of isopropanol to form a dispersion liquid, adding 7g of chitosan and 3g of tetrabutylammonium bromide, stirring and reacting at 73 ℃ for 4.5 hours, then carrying out suction filtration, washing the product with dichloromethane for 4 times, and then placing in a vacuum drying oven at 73 ℃ for drying for 11 hours to obtain the modified hair fiber.
The preparation method of the functional additive comprises the following steps: 10g of vinyl boronic acid pinacol ester, 10g of vinyl dimethyl phosphate, 10g of methyl acrylate and 20g of trans-zeatin glucoside are dissolved in 135g of N, N-dimethylformamide to form a solution, 0.5g of azobisisoheptonitrile is added into the solution, the solution is stirred and reacted for 2.3 hours at the temperature of 63 ℃ in a nitrogen atmosphere, then the solution is precipitated in acetone, the acetone is used for washing for 4 times, the solvent is removed by rotary evaporation, and the solution is ground into powder to obtain the functional additive.
Example 3
The environment-friendly building cement is prepared from the following components in parts by weight: 60 parts of cement clinker, 8 parts of modified hair fiber, 6 parts of nano boron fiber, 13 parts of olivine powder, 3 parts of rare earth slag and 3 parts of functional additive;
the functional additive is prepared by carrying out solution copolymerization on vinyl boronic acid pinacol ester, vinyl dimethyl phosphate, methyl acrylate and trans-zeatin glucoside.
The preparation method of the modified hair fiber comprises the following steps:
i, dispersing 40g of cut hair fibers in 180g of ethanol to form a dispersion, adding 2g of gamma-glycidoxypropyltrimethoxysilane, stirring at room temperature for reaction for 4 hours, filtering, washing with ethanol for 5 times, and drying in a vacuum drying oven at 75 ℃ for 11 hours to obtain epoxy group modified hair fibers;
II, dispersing 30g of the epoxy group modified hair fiber prepared in the step I in 140g of dichloromethane to form a dispersion, adding 8g of chitosan and 3g of triphenylphosphine into the dispersion, stirring and reacting at 76 ℃ for 5 hours, performing suction filtration, washing the product with dichloromethane for 4 times, and placing the product in a vacuum drying oven at 75 ℃ for drying for 11 hours to obtain the modified hair fiber.
The preparation method of the functional additive comprises the following steps: 10g of vinyl boronic acid pinacol ester, 10g of vinyl dimethyl phosphate, 10g of methyl acrylate and 20g of trans-zeatin glucoside are dissolved in 140g of N-methylpyrrolidone to form a solution, 0.5g of azobisisobutyronitrile is added into the solution, the solution is stirred and reacted for 2.6 hours at 66 ℃ in a nitrogen atmosphere, then the solution is precipitated in acetone, the acetone is used for washing for 5 times, the solvent is removed by rotary evaporation, and the solution is ground into powder to obtain the functional additive.
Example 4
The environment-friendly building cement is prepared from the following components in parts by weight: 63 parts of cement clinker, 9 parts of modified hair fiber, 8 parts of nano boron fiber, 14 parts of olivine powder, 4 parts of rare earth slag and 4 parts of functional additive;
the functional additive is prepared by carrying out solution copolymerization on vinyl boronic acid pinacol ester, vinyl dimethyl phosphate, methyl acrylate and trans-zeatin glucoside.
The preparation method of the modified hair fiber comprises the following steps:
i, dispersing 45g of cut hair fibers in 190g of ethanol to form a dispersion, adding 2g of gamma-glycidoxypropyltrimethoxysilane, stirring at room temperature to react for 4.5 hours, filtering, washing with ethanol for 5 times, and drying in a vacuum drying oven at 78 ℃ for 11.5 hours to obtain epoxy group modified hair fibers;
II, dispersing 35g of the epoxy group modified hair fiber prepared in the step I in 145g of an organic solvent to form a dispersion solution, adding 9g of chitosan and 3g of a catalyst, stirring and reacting at 78 ℃ for 5.5 hours, then performing suction filtration, washing the product for 5 times with dichloromethane, and then placing in a vacuum drying oven to dry at 78 ℃ for 11.5 hours to obtain a modified hair fiber; the organic solvent is a mixture formed by mixing ethanol, isopropanol, dichloromethane and acetone according to the mass ratio of 1:2:1: 2; the catalyst is a mixture formed by mixing triethylamine, tetrabutylammonium bromide and triphenylphosphine in a mass ratio of 2:3: 5.
The preparation method of the functional additive comprises the following steps: dissolving 10g of vinyl boronic acid pinacol ester, 10g of vinyl dimethyl phosphate, 10g of methyl acrylate and 20g of trans-zeatin glucoside in 145g of a high-boiling-point solvent to form a solution, adding 0.5g of an initiator into the solution, stirring the solution to react for 2.9 hours at 69 ℃ in a nitrogen atmosphere, precipitating the solution in acetone, washing the solution for 5 times by using the acetone, removing the solvent by rotary evaporation, and grinding the solution into powder to obtain a functional additive; the high-boiling-point solvent is a mixture formed by mixing dimethyl sulfoxide, N-methyl pyrrolidone and N, N-dimethylformamide according to the mass ratio of 2:1: 4; the initiator is a mixture formed by mixing azodiisobutyronitrile and azodiisoheptonitrile according to the mass ratio of 3: 7.
Example 5
The environment-friendly building cement is prepared from the following components in parts by weight: 65 parts of cement clinker, 10 parts of modified hair fiber, 8 parts of nano boron fiber, 15 parts of olivine powder, 5 parts of rare earth slag and 5 parts of functional additive;
the functional additive is prepared by carrying out solution copolymerization on vinyl boronic acid pinacol ester, vinyl dimethyl phosphate, methyl acrylate and trans-zeatin glucoside.
The preparation method of the modified hair fiber comprises the following steps:
i, dispersing 50g of cut hair fibers in 200g of ethanol to form a dispersion, adding 2g of gamma-glycidoxypropyltrimethoxysilane, stirring at room temperature for reaction for 5 hours, filtering, washing with ethanol for 5 times, and drying in a vacuum drying oven at 80 ℃ for 12 hours to obtain epoxy group modified hair fibers;
and II, dispersing 40g of the epoxy group modified hair fiber prepared in the step I in 150g of acetone to form a dispersion, adding 10g of chitosan and 3g of triethylamine into the dispersion, stirring and reacting for 6 hours at 80 ℃, then performing suction filtration, washing the product for 5 times by using dichloromethane, and then placing the product in a vacuum drying oven for drying for 12 hours at 80 ℃ to obtain the modified hair fiber.
The preparation method of the functional additive comprises the following steps: 10g of vinyl boronic acid pinacol ester, 10g of vinyl dimethyl phosphate, 10g of methyl acrylate and 20g of trans-zeatin glucoside are dissolved in 150g of N-methylpyrrolidone to form a solution, 0.5g of azobisisoheptonitrile is added into the solution, the solution is stirred and reacted for 3 hours at 70 ℃ in a nitrogen atmosphere, then the solution is precipitated in acetone, the acetone is used for washing for 5 times, the solvent is removed by rotary evaporation, and the solution is ground into powder to obtain the functional additive.
Comparative example
Ordinary portland cement.
The cement obtained in the above examples 1 to 5 and comparative example was subjected to the performance test, the test results are shown in table 1, and the test methods are as follows:
(1) compressive strength: refer to the national standard GB/T17671.
(2) Water resistance and stability: 2kg of cement is taken, 0.5kg of water is added, and the mixture is uniformly stirred in a stirrer to prepare cement paste. The slurry was placed in a mold having a size of 30X 120mm to prepare a cement block. Standing and curing for 10 days at 22 ℃, and after curing, evaluating the water resistance and stability of the product by using the cement test block manufactured by the mold; soaking the prepared cement test block in water for 24 hours, then placing the cement test block in a drying environment at 30 ℃ for 24 hours for 5 cycles, and calculating the dissolution rate; the prepared cement test block is placed outdoors for six months, and the surface is observed whether obvious damage and change exist.
(3) Corrosion resistance coefficient: reference is made to the national standard GB-T749-2008.
(4) Degree of hydration: reference is made to GB/T12959-2008.
TABLE 1
As can be seen from table 1, the environment-friendly building cement disclosed in the embodiment of the present invention has more excellent corrosion resistance, stability and water resistance, and has higher compressive strength and higher hydration efficiency compared with the conventional portland cement.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The environment-friendly building cement is characterized by being prepared from the following components in parts by weight: 55-65 parts of cement clinker, 5-10 parts of modified hair fiber, 3-8 parts of nano boron fiber, 10-15 parts of olivine powder, 1-5 parts of rare earth slag and 1-5 parts of functional additive;
the preparation method of the modified hair fiber comprises the following steps:
i, dispersing the cut hair fibers in ethanol to form a dispersion, adding gamma-glycidoxypropyltrimethoxysilane, stirring at room temperature for reaction for 3-5 hours, filtering, washing with ethanol for 3-5 times, and drying in a vacuum drying oven at 70-80 ℃ for 10-12 hours to obtain epoxy group modified hair fibers;
II, dispersing the epoxy group modified hair fiber prepared in the step I in an organic solvent to form a dispersion liquid, adding chitosan and a catalyst, stirring and reacting for 4-6 hours at 70-80 ℃, then performing suction filtration, washing a product for 3-5 times by using dichloromethane, and then placing the product in a vacuum drying oven for drying for 10-12 hours at 70-80 ℃ to obtain modified hair fiber;
the preparation method of the functional additive comprises the following steps: dissolving vinyl boronic acid pinacol ester, vinyl dimethyl phosphate, methyl acrylate and trans-zeatin glucoside in a high-boiling-point solvent to form a solution, adding an initiator into the solution, stirring and reacting for 2 to 3 hours at the temperature of between 60 and 70 ℃ in a nitrogen atmosphere, precipitating in acetone, washing for 3 to 5 times by using the acetone, removing the solvent by rotary evaporation, and grinding into powder to obtain the functional additive.
2. The environment-friendly building cement as claimed in claim 1, wherein the mass ratio of the hair fiber, the ethanol and the gamma-glycidoxypropyltrimethoxysilane in the step I is (3-5): (15-20): 0.2.
3. The environment-friendly building cement as claimed in claim 1, wherein the mass ratio of the epoxy group modified hair fiber, the organic solvent, the chitosan and the catalyst in the step II is (2-4): (10-15): (0.5-1): 0.3.
4. The environment-friendly building cement as claimed in claim 1, wherein the organic solvent is one or more selected from ethanol, isopropanol, dichloromethane and acetone.
5. The environment-friendly building cement as claimed in claim 1, wherein the catalyst is one or more selected from triethylamine, tetrabutylammonium bromide and triphenylphosphine.
6. The environment-friendly building cement as claimed in claim 1, wherein the mass ratio of the vinyl pinacol ester borate, the vinyl dimethyl phosphate, the methyl acrylate, the trans-zeatin glucoside, the high-boiling-point solvent and the initiator is 1:1:1:2 (10-15): 0.05.
7. The environment-friendly building cement as claimed in claim 1, wherein the high boiling point solvent is one or more selected from dimethyl sulfoxide, N-methyl pyrrolidone and N, N-dimethylformamide.
8. The environment-friendly building cement as claimed in claim 1, wherein the initiator is selected from one or more of azobisisobutyronitrile and azobisisoheptonitrile.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010617572.XA CN111807728A (en) | 2018-06-20 | 2018-06-20 | Cement reinforcing agent for modifying hair fibers and application of cement reinforcing agent in cement |
| CN201810633301.6A CN108529911B (en) | 2018-06-20 | 2018-06-20 | Environment-friendly building cement |
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| CN201810633301.6A CN108529911B (en) | 2018-06-20 | 2018-06-20 | Environment-friendly building cement |
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| CN202010617572.XA Division CN111807728A (en) | 2018-06-20 | 2018-06-20 | Cement reinforcing agent for modifying hair fibers and application of cement reinforcing agent in cement |
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| CN108529911A CN108529911A (en) | 2018-09-14 |
| CN108529911B true CN108529911B (en) | 2020-10-09 |
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| CN202010617572.XA Withdrawn CN111807728A (en) | 2018-06-20 | 2018-06-20 | Cement reinforcing agent for modifying hair fibers and application of cement reinforcing agent in cement |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109776037B (en) * | 2019-03-14 | 2021-12-10 | 湖南辰砾新材料有限公司 | High-strength waterproof concrete |
| CN110041060A (en) * | 2019-04-17 | 2019-07-23 | 苏州鑫蔚谷环保产业有限公司 | A kind of high-strength sintered building block and preparation method thereof |
| CN111925138B (en) * | 2020-08-17 | 2021-12-14 | 张勇 | Environment-friendly building cement and preparation method thereof |
| CN115124272B (en) * | 2022-06-30 | 2023-07-21 | 宁波新力建材科技有限公司 | Concrete modifier and concrete |
| CN115572142A (en) * | 2022-11-13 | 2023-01-06 | 海口盛鹏建材有限公司 | Ecological healthy environment-friendly cement |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1792982A (en) * | 2005-11-25 | 2006-06-28 | 华南理工大学 | Silicate cement of precenting chlorate corrosion |
| CN101134645A (en) * | 2007-08-02 | 2008-03-05 | 江西赣丰水泥有限责任公司 | Anti-cracking reinforced ecological cement |
| CN101870576A (en) * | 2010-07-01 | 2010-10-27 | 长治市漳山建材有限公司 | Cement composition and preparation method thereof |
| WO2015187022A1 (en) * | 2014-06-06 | 2015-12-10 | Ascem B.V. | Cement compound and a method for the production thereof |
-
2018
- 2018-06-20 CN CN201810633301.6A patent/CN108529911B/en not_active Expired - Fee Related
- 2018-06-20 CN CN202010617572.XA patent/CN111807728A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1792982A (en) * | 2005-11-25 | 2006-06-28 | 华南理工大学 | Silicate cement of precenting chlorate corrosion |
| CN101134645A (en) * | 2007-08-02 | 2008-03-05 | 江西赣丰水泥有限责任公司 | Anti-cracking reinforced ecological cement |
| CN101870576A (en) * | 2010-07-01 | 2010-10-27 | 长治市漳山建材有限公司 | Cement composition and preparation method thereof |
| WO2015187022A1 (en) * | 2014-06-06 | 2015-12-10 | Ascem B.V. | Cement compound and a method for the production thereof |
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| CN111807728A (en) | 2020-10-23 |
| CN108529911A (en) | 2018-09-14 |
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