CN115893963A - Alkali slag recycled aggregate concrete and preparation method thereof - Google Patents
Alkali slag recycled aggregate concrete and preparation method thereof Download PDFInfo
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- CN115893963A CN115893963A CN202211401684.7A CN202211401684A CN115893963A CN 115893963 A CN115893963 A CN 115893963A CN 202211401684 A CN202211401684 A CN 202211401684A CN 115893963 A CN115893963 A CN 115893963A
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- alkali slag
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- 239000002893 slag Substances 0.000 title claims abstract description 87
- 239000003513 alkali Substances 0.000 title claims abstract description 60
- 238000002360 preparation method Methods 0.000 title abstract description 11
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 42
- 239000004576 sand Substances 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 21
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 21
- 239000010881 fly ash Substances 0.000 claims abstract description 21
- 239000004571 lime Substances 0.000 claims abstract description 21
- 229920005646 polycarboxylate Polymers 0.000 claims abstract description 21
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 21
- 239000008030 superplasticizer Substances 0.000 claims abstract description 21
- 229910052934 alunite Inorganic materials 0.000 claims abstract description 15
- 239000010424 alunite Substances 0.000 claims abstract description 15
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 15
- KPZTWMNLAFDTGF-UHFFFAOYSA-D trialuminum;potassium;hexahydroxide;disulfate Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Al+3].[Al+3].[Al+3].[K+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O KPZTWMNLAFDTGF-UHFFFAOYSA-D 0.000 claims abstract description 15
- 238000002156 mixing Methods 0.000 claims description 19
- 238000003756 stirring Methods 0.000 claims description 18
- 239000002699 waste material Substances 0.000 claims description 13
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 12
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 12
- 239000002002 slurry Substances 0.000 claims description 12
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 11
- 238000012423 maintenance Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 7
- 230000005489 elastic deformation Effects 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 abstract description 2
- 239000002440 industrial waste Substances 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides alkali slag recycled aggregate concrete and a preparation method thereof, wherein the alkali slag recycled aggregate concrete comprises the following components in percentage by weight: 27.6 to 32.4 percent of recycled aggregate, 18.4 to 21.6 percent of slag, 13.8 to 16.2 percent of natural sand, 2.8 to 3.7 percent of fly ash, 3.5 to 7.2 percent of lime, 0.5 to 2 percent of sodium carbonate, 18.5 to 23.6 percent of water, 0.3 to 1.5 percent of polycarboxylate superplasticizer and 3.4 to 5.2 percent of alunite expanding agent. The invention provides an alkali slag recycled aggregate concrete and a preparation method thereof, which takes recycled aggregate, alkali slag, natural sand, fly ash, lime, sodium carbonate, water, polycarboxylate superplasticizer and alunite expanding agent as main components, and the main components are mixed for two times and are manufactured and molded by a pressure molding method, and the obtained product has better elastic deformation resistance and higher flexural strength and compressive strength, meets the use requirement of engineering and can replace common concrete for use.
Description
Technical Field
The invention relates to the technical field of alkali slag recycled aggregate concrete, in particular to alkali slag recycled aggregate concrete and a preparation method thereof.
Background
The main principle of alkali slag cement is that industrial waste slag (such as granulated blast furnace slag, steel slag or electric furnace phosphorus slag) is placed in alkali solution with a certain concentration to increase the decomposition degree, and then polycondensation is carried out to form a new hydration product, and finally a cement stone crystal structure is formed.
The recycled aggregate is the aggregate obtained by mixing the construction waste mainly comprising waste concrete and bricks according to a certain proportion after cleaning, crushing and grading, is also called recycled concrete aggregate, and the research and development of the recycled aggregate can reduce the consumption of natural aggregate on one hand and solve the pollution to the environment and the difficulty in treatment of the waste concrete on the other hand, thereby having important significance.
The crushed waste concrete is taken as recycled aggregate, so that the problem of shortage of natural aggregate resources can be solved, the ecological environment of an aggregate production place can be protected, the problems of stacking, land occupation, environmental pollution and the like of urban waste can be solved, and the comprehensive utilization of the recycled resources and industrial waste in the concrete production process can be well realized by combining and using industrial waste slag.
At present, the research of combining the two preparation concrete of regeneration aggregate and slay is less, and the product that makes moreover is through detecting, and intensity is lower than ordinary concrete, can't satisfy the user demand of engineering.
Disclosure of Invention
The invention aims to provide alkali slag recycled aggregate concrete and a preparation method thereof, and aims to solve the problems that in the prior art, the research on concrete prepared by combining recycled aggregate and slag is less, and most prepared products are detected to have lower strength than common concrete and cannot meet the use requirement.
In order to achieve the purpose, the invention provides the following technical scheme: the alkali slag recycled aggregate concrete and the preparation method thereof comprise the following components in percentage by weight:
27.6 to 32.4 percent of recycled aggregate, 18.4 to 21.6 percent of slag, 13.8 to 16.2 percent of natural sand, 2.8 to 3.7 percent of fly ash, 3.5 to 7.2 percent of lime, 0.5 to 2 percent of sodium carbonate, 18.5 to 23.6 percent of water, 0.3 to 1.5 percent of polycarboxylate superplasticizer and 3.4 to 5.2 percent of alunite expanding agent.
Preferably, the recycled aggregate is obtained by crushing waste concrete, and the particle size of the recycled aggregate is 5-20 mm.
Preferably, the content ratio of the recycled aggregate, the slag and the natural sand is 3.
Preferably, the slag is blast furnace slag, and the blast furnace slag comprises CaO and SiO 2 、Al 2 O 3 、Fe 2 O 3 、MgO、MnO、TiO 2 S, and others.
Preferably, the blast furnace slag has a content of 38.53% CaO, 38.26% SiO by mass 2 、12.34％Al 2 O 3 、1.53％Fe 2 O 3 、4.47％MgO、1.92％MnO、1.40％TiO 2 0.05% S and other 1.5%.
The second aspect of the present invention provides a method for preparing the alkali slag recycled aggregate concrete of the first aspect of the present invention, comprising the steps of:
s1, taking materials:
according to the mass percentage of each component, 27.6-32.4 percent of recycled aggregate, 18.4-21.6 percent of alkali slag, 13.8-16.2 percent of natural sand, 2.8-3.7 percent of fly ash, 3.5-7.2 percent of lime, 0.5-2 percent of sodium carbonate, 18.5-23.6 percent of water, 0.3-1.5 percent of polycarboxylate superplasticizer and 3.4-5.2 percent of alunite expanding agent are sequentially weighed for standby;
s2, primary mixing:
mixing the recycled aggregate and the natural sand, adding half of water, and stirring for 3min;
s3, secondary mixing:
adding alkali slag into the S2, stirring for 1min, then sequentially stirring the fly ash, the lime, the sodium carbonate, the polycarboxylate superplasticizer and the rest water for 3min to prepare concrete slurry;
s4, pressure forming:
and (4) adding the concrete slurry in the step (S3) into a mold, and carrying out pressure forming to prepare the concrete.
S5, maintenance:
and curing the formed concrete for 28 days under the conditions that the temperature is 20 +/-2 ℃ and the humidity is more than or equal to 95%.
The invention has at least the following beneficial effects:
(1) According to the alkali slag recycled aggregate concrete and the preparation method thereof, recycled aggregate and alkali slag are combined to prepare the concrete, so that the problem of shortage of natural aggregate resources can be solved, the ecological environment of an aggregate production place is protected, and the problems of stacking of urban waste, land occupation, environmental pollution and the like can be solved;
(2) The invention provides an alkali slag recycled aggregate concrete and a preparation method thereof, which takes recycled aggregate, alkali slag, natural sand, fly ash, lime, sodium carbonate, water, polycarboxylate superplasticizer and alunite expanding agent as main components, and the main components are mixed for two times and are manufactured and molded by a pressure molding method, and the obtained product has better elastic deformation resistance and higher flexural strength and compressive strength, meets the use requirement of engineering and can replace common concrete for use.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example 1
The alkali slag recycled aggregate concrete comprises the following components in percentage by weight:
30.6 percent of recycled aggregate, 20.4 percent of alkali slag, 15.3 percent of natural sand, 3.1 percent of fly ash, 4.7 percent of lime, 1.4 percent of sodium carbonate, 18.7 percent of water, 1.5 percent of polycarboxylate superplasticizer and 4.3 percent of alunite expanding agent.
The recycled aggregate is obtained by crushing waste concrete, and the particle size of the recycled aggregate is 5-20 mm.
Wherein, the content ratio of the recycled aggregate, the alkali slag and the natural sand is 3.
Wherein the alkali slag is blast furnace slag, and the blast furnace slag contains CaO and SiO 2 、Al 2 O 3 、Fe 2 O 3 、MgO、MnO、TiO 2 S, and others.
Wherein the blast furnace slag components are 38.53% by mass of CaO, 38.26% by mass of SiO 2 、12.34％Al 2 O 3 、1.53％Fe 2 O 3 、4.47％MgO、1.92％MnO、1.40％TiO 2 0.05% S and other 1.5%.
A method for preparing the above alkali slag recycled aggregate concrete comprises the following steps:
s1, material taking:
according to the mass percentage of each component, weighing 30.6 percent of recycled aggregate, 20.4 percent of alkali slag, 15.3 percent of natural sand, 3.1 percent of fly ash, 4.7 percent of lime, 1.4 percent of sodium carbonate, 18.7 percent of water, 1.5 percent of polycarboxylate superplasticizer and 4.3 percent of alunite expanding agent in turn for standby;
s2, primary mixing:
mixing the recycled aggregate and the natural sand, adding half of water, and stirring for 3min;
s3, secondary mixing:
adding alkali slag into the S2, stirring for 1min, then sequentially stirring the fly ash, the lime, the sodium carbonate, the polycarboxylate superplasticizer and the rest water for 3min to prepare concrete slurry;
s4, pressure forming:
and (4) adding the concrete slurry in the step (S3) into a mold, and carrying out pressure forming to prepare the concrete.
S5, maintenance:
and curing the formed concrete for 28 days under the conditions that the temperature is 20 +/-2 ℃ and the humidity is more than or equal to 95 percent.
Example 2
The alkali slag recycled aggregate concrete comprises the following components in percentage by weight:
27.6 percent of recycled aggregate, 18.4 percent of alkali slag, 13.8 percent of natural sand, 3.7 percent of fly ash, 7.2 percent of lime, 2 percent of sodium carbonate, 23.6 percent of water, 0.3 percent of polycarboxylate superplasticizer and 3.4 percent of alunite expanding agent.
The recycled aggregate is obtained by crushing waste concrete, and the particle size of the recycled aggregate is 5-20 mm.
Wherein the content ratio of the recycled aggregate, the alkali slag and the natural sand is 3.
Wherein the alkali slag is blast furnace slag, and the blast furnace slag comprises CaO and SiO 2 、Al 2 O 3 、Fe 2 O 3 、MgO、MnO、TiO 2 S, and others.
Wherein the blast furnace slag comprises, by mass, 38.53% CaO, 38.26% SiO 2 、12.34％Al 2 O 3 、1.53％Fe 2 O 3 、4.47％MgO、1.92％MnO、1.40％TiO 2 0.05% S and other 1.5%.
A method for preparing the above alkali slag recycled aggregate concrete comprises the following steps:
s1, taking materials:
according to the mass percentage of each component, 27.6 percent of recycled aggregate, 18.4 percent of alkali slag, 13.8 percent of natural sand, 3.7 percent of fly ash, 7.2 percent of lime, 2 percent of sodium carbonate, 23.6 percent of water, 0.3 percent of polycarboxylate superplasticizer and 3.4 percent of alunite expanding agent are weighed in sequence for standby;
s2, primary mixing:
mixing the recycled aggregate and the natural sand, adding half of water, and stirring for 3min;
s3, secondary mixing:
adding alkali slag into the S2, stirring for 1min, then sequentially stirring the fly ash, the lime, the sodium carbonate, the polycarboxylate superplasticizer and the rest water for 3min to prepare concrete slurry;
s4, pressure forming:
and (4) adding the concrete slurry in the step (S3) into a mold, and performing pressure forming to prepare and mold.
S5, maintenance:
and curing the formed concrete for 28 days under the conditions that the temperature is 20 +/-2 ℃ and the humidity is more than or equal to 95%.
Example 3
The alkali slag recycled aggregate concrete comprises the following components in percentage by weight:
32.4 percent of recycled aggregate, 21.6 percent of alkali slag, 16.2 percent of natural sand, 2.8 percent of fly ash, 3.5 percent of lime, 0.5 percent of sodium carbonate, 18.5 percent of water, 0.3 percent of polycarboxylate superplasticizer and 4.2 percent of alunite expanding agent.
The recycled aggregate is obtained by crushing waste concrete, and the particle size of the recycled aggregate is 5-20 mm.
Wherein, the content ratio of the recycled aggregate, the alkali slag and the natural sand is 3.
Wherein the alkali slag is blast furnace slag, and the blast furnace slag comprises CaO and SiO 2 、Al 2 O 3 、Fe 2 O 3 、MgO、MnO、TiO 2 S, and others.
Wherein the blast furnace slag components are 38.53% by mass of CaO, 38.26% by mass of SiO 2 、12.34％Al 2 O 3 、1.53％Fe 2 O 3 、4.47％MgO、1.92％MnO、1.40％TiO 2 0.05% S and other 1.5%.
A method for preparing the above alkali slag recycled aggregate concrete comprises the following steps:
s1, taking materials:
according to the mass percentage of each component, 32.4 percent of recycled aggregate, 21.6 percent of alkali slag, 16.2 percent of natural sand, 2.8 percent of fly ash, 3.5 percent of lime, 0.5 percent of sodium carbonate, 18.5 percent of water, 0.3 percent of polycarboxylate superplasticizer and 4.2 percent of alunite expanding agent are weighed in sequence for standby;
s2, primary mixing:
mixing the recycled aggregate and the natural sand, adding half of water, and stirring for 3min;
s3, secondary mixing:
adding alkali slag into the S2, stirring for 1min, then sequentially stirring the fly ash, the lime, the sodium carbonate, the polycarboxylate superplasticizer and the rest water for 3min to prepare concrete slurry;
s4, pressure forming:
and (4) adding the concrete slurry in the step (S3) into a mold, and performing pressure forming to prepare and mold.
S5, maintenance:
and curing the formed concrete for 28 days under the conditions that the temperature is 20 +/-2 ℃ and the humidity is more than or equal to 95 percent.
Example 4
The alkali slag recycled aggregate concrete comprises the following components in percentage by weight:
28.8 percent of recycled aggregate, 19.2 percent of alkali slag, 14.4 percent of natural sand, 3.3 percent of fly ash, 5.6 percent of lime, 1.4 percent of sodium carbonate, 21.2 percent of water, 0.9 percent of polycarboxylate superplasticizer and 5.2 percent of alunite expanding agent.
The recycled aggregate is obtained by crushing waste concrete, and the particle size of the recycled aggregate is 5-20 mm.
Wherein, the content ratio of the recycled aggregate, the alkali slag and the natural sand is 3.
Wherein the alkali slag is blast furnace slag, and the blast furnace slag comprises CaO and SiO 2 、Al 2 O 3 、Fe 2 O 3 、MgO、MnO、TiO 2 S, and others.
Wherein the blast furnace slag components are 38.53% by mass of CaO, 38.26% by mass of SiO 2 、12.34％Al 2 O 3 、1.53％Fe 2 O 3 、4.47％MgO、1.92％MnO、1.40％TiO 2 0.05% S and other 1.5%.
A method for preparing the above alkali slag recycled aggregate concrete comprises the following steps:
s1, taking materials:
according to the mass percent of each component, 28.8 percent of recycled aggregate, 19.2 percent of alkali slag, 14.4 percent of natural sand, 3.3 percent of fly ash, 5.6 percent of lime, 1.4 percent of sodium carbonate, 21.2 percent of water, 0.9 percent of polycarboxylate superplasticizer and 5.2 percent of alunite expanding agent are weighed in sequence for standby;
s2, primary mixing:
mixing the recycled aggregate and the natural sand, adding half of water, and stirring for 3min;
s3, secondary mixing:
adding alkali slag into the S2, stirring for 1min, then sequentially stirring the fly ash, the lime, the sodium carbonate, the polycarboxylate superplasticizer and the rest water for 3min to prepare concrete slurry;
s4, pressure forming:
and (4) adding the concrete slurry in the step (S3) into a mold, and performing pressure forming to prepare and mold.
S5, maintenance:
and curing the formed concrete for 28 days under the conditions that the temperature is 20 +/-2 ℃ and the humidity is more than or equal to 95%.
A series of related performance tests were performed on the products prepared in examples 1-4 above, with the results shown in the following table:
in conclusion, the alkali slag recycled aggregate concrete and the preparation method thereof provided by the invention have the advantages that the waste concrete is crushed and processed to be used as recycled aggregate and the alkali slag are combined to prepare the concrete, and the prepared product not only saves resources, but also has better elastic deformation resistance and higher bending strength and compressive strength.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various 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. The alkali slag recycled aggregate concrete is characterized by comprising the following components in percentage by weight:
27.6 to 32.4 percent of recycled aggregate, 18.4 to 21.6 percent of alkali slag, 13.8 to 16.2 percent of natural sand, 2.8 to 3.7 percent of fly ash, 3.5 to 7.2 percent of lime, 0.5 to 2 percent of sodium carbonate, 18.5 to 23.6 percent of water, 0.3 to 1.5 percent of polycarboxylate superplasticizer and 3.4 to 5.2 percent of alunite expanding agent.
2. The alkali slag recycled aggregate concrete according to claim 1, wherein: the recycled aggregate is obtained by crushing and processing waste concrete, and the particle size of the recycled aggregate is 5-20 mm.
3. The alkali slag recycled aggregate concrete according to claim 1, wherein: the content ratio of the recycled aggregate, the alkali slag and the natural sand is 3.
4. The alkali slag recycled aggregate concrete according to claim 1, wherein: the alkali slag is blast furnace slag, and the blast furnace slag comprises CaO and SiO 2 、Al 2 O 3 、Fe 2 O 3 、MgO、MnO、TiO 2 S, and others.
5. The alkali slag recycled aggregate concrete according to claim 4, wherein: the blast furnace slag has a mass percentage of 38.53% CaO, 38.26% SiO 2 、12.34％Al 2 O 3 、1.53％Fe 2 O 3 、4.47％MgO、1.92％MnO、1.40％TiO 2 0.05% S and other 1.5%.
6. A method for producing the alkali slag recycled aggregate concrete of any one of claims 1 to 5, comprising the steps of:
s1, taking materials:
according to the mass percent of each component, 27.6-32.4 percent of recycled aggregate, 18.4-21.6 percent of alkali slag, 13.8-16.2 percent of natural sand, 2.8-3.7 percent of fly ash, 3.5-7.2 percent of lime, 0.5-2 percent of sodium carbonate, 18.5-23.6 percent of water, 0.3-1.5 percent of polycarboxylate superplasticizer and 3.4-5.2 percent of alunite expanding agent are sequentially weighed for standby;
s2, primary mixing:
mixing the recycled aggregate and the natural sand, adding half of water, and stirring for 3min;
s3, secondary mixing:
adding alkali slag into the S2, stirring for 1min, then sequentially stirring the fly ash, the lime, the sodium carbonate, the polycarboxylate superplasticizer and the rest water for 3min to prepare concrete slurry;
s4, pressure forming:
and (4) adding the concrete slurry in the step (S3) into a mold, and performing pressure forming to prepare and mold.
S5, maintenance:
and curing the formed concrete for 28 days under the conditions that the temperature is 20 +/-2 ℃ and the humidity is more than or equal to 95%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211401684.7A CN115893963A (en) | 2022-11-10 | 2022-11-10 | Alkali slag recycled aggregate concrete and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211401684.7A CN115893963A (en) | 2022-11-10 | 2022-11-10 | Alkali slag recycled aggregate concrete and preparation method thereof |
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| CN115893963A true CN115893963A (en) | 2023-04-04 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007001801A (en) * | 2005-06-23 | 2007-01-11 | Denki Kagaku Kogyo Kk | Corrosion resistant composite, and method of manufacturing the same |
| CN101844883A (en) * | 2010-01-28 | 2010-09-29 | 汪超 | Novel composite ecological cement and product application thereof |
| CN103601424A (en) * | 2013-11-11 | 2014-02-26 | 长沙理工大学 | Geopolymeric concrete based on recycled aggregate and preparation method of geopolymeric concrete |
| CN212104778U (en) * | 2020-04-29 | 2020-12-08 | 深圳市天健坪山建设工程有限公司 | Recycled concrete and construction structure of member thereof |
-
2022
- 2022-11-10 CN CN202211401684.7A patent/CN115893963A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007001801A (en) * | 2005-06-23 | 2007-01-11 | Denki Kagaku Kogyo Kk | Corrosion resistant composite, and method of manufacturing the same |
| CN101844883A (en) * | 2010-01-28 | 2010-09-29 | 汪超 | Novel composite ecological cement and product application thereof |
| CN103601424A (en) * | 2013-11-11 | 2014-02-26 | 长沙理工大学 | Geopolymeric concrete based on recycled aggregate and preparation method of geopolymeric concrete |
| CN212104778U (en) * | 2020-04-29 | 2020-12-08 | 深圳市天健坪山建设工程有限公司 | Recycled concrete and construction structure of member thereof |
Non-Patent Citations (1)
| Title |
|---|
| 马安, 杨波, 赵益民: "粉煤灰与膨胀剂双掺技术在大体积混凝土中的应用", 粉煤灰综合利用, no. 05 * |
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