CN113896474A - Micro-silicon powder modified permeable steel slag concrete and preparation method thereof - Google Patents
Micro-silicon powder modified permeable steel slag concrete and preparation method thereof Download PDFInfo
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- CN113896474A CN113896474A CN202111121260.0A CN202111121260A CN113896474A CN 113896474 A CN113896474 A CN 113896474A CN 202111121260 A CN202111121260 A CN 202111121260A CN 113896474 A CN113896474 A CN 113896474A
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- steel slag
- silicon powder
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/14—Waste materials; Refuse from metallurgical processes
- C04B18/141—Slags
- C04B18/142—Steelmaking slags, converter slags
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/14—Waste materials; Refuse from metallurgical processes
- C04B18/146—Silica fume
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00284—Materials permeable to liquids
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- 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
Abstract
The invention provides micro-silicon powder modified permeable steel slag concrete and a preparation method thereof, wherein the micro-silicon powder modified permeable steel slag concrete comprises the following raw material components in parts by weight: 400-500 parts of Portland cement, 1750-1900 parts of steel slag, 100-200 parts of yellow sand, 2.0-8.8 parts of silica fume and 135-145 parts of water. The silica fume with smaller average particle size is added into the raw materials and can be filled in gaps among portland cement particles, and the silica fume and a hydration product of the portland cement can generate gel in the hydration process, so that the breaking strength of the steel slag concrete is improved, cracks are prevented, and the strength and the durability of the steel slag concrete are improved; in addition, the addition of the micro silicon powder can reduce the cost of the steel slag raw material, and simultaneously prepare a high-strength permeable steel slag concrete product with the performance of above C30 level, thereby providing a new idea for applying the micro silicon powder to the preparation of green steel slag concrete and developing a new way for the synergistic utilization of bulk solid wastes such as slag, steel slag, building recycled aggregate and the like.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to silica fume modified permeable steel slag concrete and a preparation method thereof.
Background
The micro silicon powder, also called as silica fume or condensed silica fume, is a large amount of SiO with strong volatility produced in an ore-smelting electric furnace when ferroalloy is used for smelting ferrosilicon and industrial silicon (metallic silicon)2And Si gas, which is quickly oxidized, condensed and precipitated with air after being discharged. The average grain diameter of the micro silicon powder is 0.2 mu m, and the specific surface area is 15000-25000 m2In terms of/kg. The main component of the composite is silicon dioxide with the content of 85-95%, and the impurity components are metal oxides such as sodium oxide, calcium oxide, ferric oxide and aluminum oxide, and a small amount of simple substance carbon, silicon and the like. The silicon dioxide in the silica fume belongs to an amorphous substance, has high activity, fine particles, large specific surface area and excellent physical and chemical properties, and is widely applied to important fields of concrete, refractory materials, wall materials, cement products, mortar, terraces, chemical engineering and the like used in special engineering.
Steel slag is a by-product in the steel-making process, and is composed of various oxides formed by oxidizing impurities in pig iron, such as silicon, manganese, phosphorus, sulfur, and the like in the smelting process, and salts generated by reacting the oxides with a solvent. The steel slag can be used as a raw material of concrete, and reasonable utilization of secondary resources is realized. However, the steel slag concrete in the prior art has poor breaking strength, is easy to generate cracks after construction, and has insufficient concrete strength and durability.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide the micro-silicon powder modified permeable steel slag concrete and the preparation method thereof, which are used for solving the problems of poor flexural strength, easy generation of cracks after construction and insufficient durability of the steel slag concrete in the prior art.
To achieve the above objects and other related objects, the present invention includes the following technical solutions.
The micro-silicon powder modified permeable steel slag concrete comprises the following raw material components in parts by weight:
preferably, 430-450 parts of Portland cement.
Preferably, 1800-1860 parts of steel slag.
Preferably, 140-160 parts of yellow sand.
Preferably, the micro silicon powder is 2.2-3.3 parts.
Preferably, 138-142 parts of water.
Preferably, the portland cement is P.C 42.5.5.
Preferably, the average size of the steel slag is 3-5 mm.
Preferably, the content of free calcium in the steel slag is less than 3%, and the content of total iron in the steel slag is less than or equal to 1%.
Preferably, the average particle size of the micro silicon powder is 0.1-0.3 μm.
Preferably, SiO in the micro silicon powder2The content of (A) is more than or equal to 95 percent.
Preferably, the particle size of the yellow sand is 0.25-0.5 mm.
The invention also aims to provide a preparation method of the micro silicon powder modified permeable steel slag concrete, which is used for preparing the micro silicon powder modified permeable steel slag concrete after uniformly mixing the raw material components.
Preferably, when mixing, the feeding sequence of each raw material component is as follows: steel slag, yellow sand, silica fume, silicate cement and water.
The invention also aims to provide a construction method of the silica fume modified permeable slag concrete prepared by the preparation method, which comprises the steps of pouring the silica fume modified permeable slag concrete into a mould and curing.
As mentioned above, the micro-silicon powder modified permeable steel slag concrete and the preparation method thereof have the following beneficial effects:
the silica fume with smaller average particle size is added into the raw materials and can be filled in gaps among portland cement particles, and the silica fume and a hydration product of portland cement can generate gel in the hydration process, so that the breaking strength of the steel slag concrete is improved, cracks are prevented, and the strength and the durability of the steel slag concrete are improved; in addition, the addition of the micro silicon powder can reduce the cost of the steel slag raw material and prepare a high-strength water-permeable steel slag concrete product with the performance of more than C30 (the water permeability coefficient is 3.4-4.2 x 10)-2Within the range of cm/s, the 28d compressive strength is within the range of 27.8-36.9 MPa, and the 28d flexural strength is within the range of 4.9-6.3 MPa), so that a new idea is provided for applying the micro silicon powder to the preparation of green steel slag concrete, and a new way for the synergistic utilization of bulk solid wastes such as slag, steel slag, building recycled aggregate and the like is developed.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Before the present embodiments are further described, it is to be understood that the scope of the invention is not limited to the particular embodiments described below; it is also to be understood that the terminology used in the examples is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the present invention. Test methods in which specific conditions are not specified in the following examples are generally carried out under conventional conditions or under conditions recommended by the respective manufacturers.
When numerical ranges are given in the examples, it is understood that both endpoints of each of the numerical ranges and any value therebetween can be selected unless the invention otherwise indicated. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In addition to the specific methods, devices, and materials used in the examples, any methods, devices, and materials similar or equivalent to those described in the examples may be used in the practice of the invention in addition to the specific methods, devices, and materials used in the examples, in keeping with the knowledge of one skilled in the art and with the description of the invention.
The embodiment of the application provides specific micro-silicon powder modified permeable steel slag concrete which comprises the following raw material components in parts by weight:
in the technical scheme of the application, the micro silica powder with smaller average particle size is added into the raw materials and can be filled in gaps of portland cement particles, and the micro silica powder and a hydration product of portland cement can generate gel in the hydration process to obtain the micro silica powder modified permeable steel slag concrete, so that the flexural strength of the steel slag concrete is improved, cracks are prevented, and the strength and the durability of the steel slag concrete are improved. According to the invention, the excellent performance of the micro silicon powder is utilized to improve the high value-added product of the solid waste of the metallurgical slag, the high-strength permeable steel slag concrete with higher breaking strength for the pavement is prepared, the potential activity of the steel slag is continuously excavated, and other advantageous characteristics are obtained, the scale and effect of comprehensive utilization can be improved, and the sustainable and high-quality development of steel slag recycling economy can be comprehensively promoted.
In a specific embodiment, the Portland cement is 430-450 parts.
In one specific embodiment, the steel slag comprises 1800-1860 parts.
In a specific embodiment, 140-160 parts of yellow sand.
In a specific embodiment, the micro silicon powder is 2.2-3.3 parts.
In a specific embodiment, 138-142 parts of water.
In a specific embodiment, the portland cement is P.C 42.5.5.
In a specific embodiment, the average size of the steel slag is 3 to 5mm, such as 3 to 4mm, 4 to 5 mm. The average size of the steel slag raw material is limited within the range, and the effect of improving the flexural strength of the concrete is achieved.
In a specific embodiment, the steel slag contains free calcium less than 3% and total iron less than or equal to 1%. The steel slag raw material defined by the technical scheme of the application has similar components to the portland cement clinker, and can be added into concrete as an admixture to improve the strength and durability of the concrete.
In a specific embodiment, the average particle size of the silica fume is 0.1 to 0.3 μm, such as 0.1 to 0.2 μm, and 0.2 to 0.3 mm.
In a specific embodiment, the SiO in the micro silicon powder2The content of (A) is more than or equal to 95 percent.
In a more specific embodiment, the SiO in the micro silicon powder2Is silica fume 95N.
In a specific embodiment, the yellow sand has a particle size of 0.25 to 0.5mm, such as 0.25 to 0.35mm, 0.35 to 0.45mm, 0.45 to 0.5 mm. In the technical scheme, the average size of the yellow sand raw material is limited within the range of the medium sand, the medium sand has reasonable porosity and good grading, and the compactness and the strength of concrete and mortar can be improved. In the prior art, the concrete mostly adopts fine sand raw materials, the surface area of the fine sand is large, the dosage of cementing materials for wrapping the sand is large, and the cement dosage is large and the production cost is high. This application is through reducing the sand rate, adopts the medium sand, reduces cementitious material's quantity, reduces the materials of cement, when practicing thrift the cost, guarantees the intensity and the workability of concrete.
The embodiment of the application also provides a preparation method of the micro silicon powder modified permeable steel slag concrete, which is characterized in that the micro silicon powder modified permeable steel slag concrete is prepared after all raw material components are uniformly mixed.
In a specific embodiment, the raw material components are added in the following order when mixing: steel slag, yellow sand, silica fume, silicate cement and water. In a more specific embodiment, the micro silicon powder is added into the stirrer immediately after the steel slag and the yellow sand are fed before stirring, then the Portland cement is added, the mixture is stirred to be uniform in a dry mode, and finally water is added. The stirring time is prolonged by 20 to 25 percent or 50 to 60 seconds compared with the common concrete. The technical scheme of the application can accelerate the hydration efficiency of the steel slag concrete, reduce the hydration time and improve the construction efficiency.
The embodiment of the application also provides a construction method of the silica fume modified permeable steel slag concrete prepared by the preparation method, and the silica fume modified permeable steel slag concrete is poured into a mold and cured.
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
The sources and parameters of the various feed components used in the examples below of this application are shown in table 1:
TABLE 1 raw material sources and parameters
Examples 1 to 6
Referring to the formula tables shown in tables 1 and 2, the raw material components are as follows according to the feeding sequence: firstly, feeding steel slag and yellow sand, immediately adding silica fume, then adding portland cement, stirring uniformly by dry stirring, and finally adding water and mixing uniformly to obtain the silica fume modified permeable steel slag concrete.
Comparative example 1
Comparative example 1 differs from example 1 in that no microsilica is added and the rest of the process is exactly the same.
Comparative example 2
The difference between the comparative example 2 and the example 1 is that the addition amount of the micro silicon powder is 1.0g, and the rest processes are completely the same.
Comparative example 3
The difference between the comparative example 3 and the example 1 is that the addition amount of the micro silicon powder is 9.0g, and the rest processes are completely the same.
TABLE 2 raw material formulation tables for examples 1 to 6 and comparative examples 1 to 3
| Raw materials | Portland cement/g | Steel slag/g | Yellow sand/g | Micro silicon powder/g | Water/g |
| Example 1 | 440 | 1850 | 150 | 2.2 | 140 |
| Example 2 | 440 | 1850 | 150 | 4.4 | 140 |
| Example 3 | 440 | 1850 | 150 | 6.6 | 140 |
| Example 4 | 440 | 1850 | 150 | 8.8 | 140 |
| Example 5 | 500 | 1750 | 200 | 3.3 | 145 |
| Example 6 | 400 | 1900 | 100 | 5.5 | 135 |
| Comparative example 1 | 440 | 1850 | 150 | 0 | 140 |
| Comparative example 2 | 440 | 1850 | 150 | 1 | 140 |
| Comparative example 3 | 440 | 1850 | 150 | 9 | 140 |
The micro silicon powder modified permeable steel slag concretes prepared in examples 1 to 6 and comparative examples 1 to 3 were poured into a mold, and the flexural strength, compressive strength and permeability coefficient of the molded product were tested for 3 days and 7 days, respectively.
The test method is as follows:
the 7-day and 28-day flexural strength test method refers to GB/T50081-2002 Standard for mechanical property test method of common concrete; the test method of the water permeability coefficient refers to GB/T25993-:
TABLE 3 Performance test results of the steel slag concretes of examples 1-6 and comparative examples 1-3
As can be seen from Table 3, the steel slag concrete prepared by the embodiments 1-6 of the technical scheme of the application belongs to high-strength permeable steel slag concrete products (the permeability coefficient is 3.4-4.2 x 10) which accord with the grade above C30-2Within the range of cm/s, the 28d compressive strength is within the range of 27.8-36.9 MPa, and the 28d flexural strength is within the range of 4.9-6.3 MPa). Comparing the performance data of comparative example 1 and example 1, it can be seen that the steel slag concrete modified with silica fume has 7d and 28d flexural strengthThe strength is greatly improved; it can be seen from the comparison of the performance data of examples 1 to 6 that when the amount of silica fume is 2.2g, the compressive strength and water permeability coefficient of the obtained steel slag concrete in 7d and 28d are the highest, and the flexural strength and water permeability coefficient of the obtained steel slag concrete in 7d and 28d are reduced with the increase of the addition amount of silica fume, but the steel slag concrete still meets the requirements of high-strength water-permeable steel slag concrete products with the grade of above C30. Comparing the performance data of comparative examples 1 and 2 with that of example 1, it can be seen that when the addition amount of the silica fume is too low, the compressive strength and the flexural strength of the steel slag concrete cannot be remarkably improved. Comparing the performance data of comparative example 3 and example 1, it can be seen that when the amount of silica fume added is further increased, the flexural strength/compressive strength of the obtained steel slag concrete is above the grade of C30, but the water permeability coefficient is greatly reduced (less than 3.4 x 10)-2cm/s) can not meet the requirements of high-strength permeable steel slag concrete products with the grade above C30.
In conclusion, the invention utilizes the excellent performance of the micro silicon powder to improve the high value-added product of the solid waste of the metallurgical slag, manufactures the high-strength permeable steel slag concrete with higher breaking strength for the pavement, continuously excavates the advantage characteristics of potential activity and the like of the steel slag, can improve the scale and effect of comprehensive utilization, and comprehensively promotes the sustainable and high-quality development of steel slag recycling economy.
Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. The micro-silicon powder modified permeable steel slag concrete is characterized by comprising the following raw material components in parts by weight:
2. the micro silicon powder modified permeable steel slag concrete according to claim 1, which is characterized in that:
430-450 parts of Portland cement;
and/or 1800-1860 parts of steel slag;
and/or 140-160 parts of yellow sand;
and/or 2.2-3.3 parts of micro silicon powder;
and/or 138-142 parts of water.
3. The micro silicon powder modified permeable steel slag concrete according to claim 1, which is characterized in that: the portland cement is P.C42.5.
4. The micro silicon powder modified permeable steel slag concrete according to claim 1, which is characterized in that: the average size of the steel slag is 3-5 mm.
5. The micro silicon powder modified permeable steel slag concrete according to claim 1, which is characterized in that: the free calcium content in the steel slag is less than 3 percent, and the total iron content in the steel slag is less than or equal to 1 percent.
6. The micro silicon powder modified permeable steel slag concrete according to claim 1, which is characterized in that: the average particle size of the micro silicon powder is 0.1-0.3 mu m; and/or: SiO in the micro silicon powder2The content of (A) is more than or equal to 95 percent.
7. The micro silicon powder modified permeable steel slag concrete according to claim 1, which is characterized in that: the particle size of the yellow sand is 0.25-0.5 mm.
8. The preparation method of the micro silicon powder modified permeable steel slag concrete as claimed in any one of claims 1 to 7, which is characterized in that: and uniformly mixing the raw material components to obtain the micro silicon powder modified permeable steel slag concrete.
9. The method of claim 8, wherein: when mixing, the charging sequence of each raw material component is as follows: steel slag, yellow sand, silica fume, silicate cement and water.
10. The construction method of the micro silicon powder modified permeable steel slag concrete as claimed in claims 1 to 7, characterized in that: and mixing the raw material components of the micro silicon powder modified permeable steel slag concrete, pouring the mixture into a mold and maintaining the mold.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114933464A (en) * | 2022-01-18 | 2022-08-23 | 衢州学院 | Steel slag permeable concrete and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102145982A (en) * | 2010-02-09 | 2011-08-10 | 中冶宝钢技术服务有限公司 | Preparation method of steel slag permeable concrete |
| CN104003666A (en) * | 2014-06-03 | 2014-08-27 | 上海宝冶钢渣综合开发实业有限公司 | High-early-strength steel slag pervious concrete as well as preparation method and applications thereof |
| CN107382171A (en) * | 2017-08-23 | 2017-11-24 | 盐城工学院 | Concrete and preparation method thereof |
| CN109734375A (en) * | 2019-01-30 | 2019-05-10 | 浙江广天构件股份有限公司 | A kind of iron-aggregate concrete and preparation method for counter weight construction |
| CN110282928A (en) * | 2019-07-04 | 2019-09-27 | 刘群 | Pervious concrete and its processing method |
| WO2021012937A1 (en) * | 2019-07-24 | 2021-01-28 | 桂林理工大学 | High-strength coral concrete and preparation method therefor |
-
2021
- 2021-09-24 CN CN202111121260.0A patent/CN113896474A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102145982A (en) * | 2010-02-09 | 2011-08-10 | 中冶宝钢技术服务有限公司 | Preparation method of steel slag permeable concrete |
| CN104003666A (en) * | 2014-06-03 | 2014-08-27 | 上海宝冶钢渣综合开发实业有限公司 | High-early-strength steel slag pervious concrete as well as preparation method and applications thereof |
| CN107382171A (en) * | 2017-08-23 | 2017-11-24 | 盐城工学院 | Concrete and preparation method thereof |
| CN109734375A (en) * | 2019-01-30 | 2019-05-10 | 浙江广天构件股份有限公司 | A kind of iron-aggregate concrete and preparation method for counter weight construction |
| CN110282928A (en) * | 2019-07-04 | 2019-09-27 | 刘群 | Pervious concrete and its processing method |
| WO2021012937A1 (en) * | 2019-07-24 | 2021-01-28 | 桂林理工大学 | High-strength coral concrete and preparation method therefor |
Non-Patent Citations (2)
| Title |
|---|
| 戴维等: "《铁合金工程技术》", 30 June 2015, 冶金工业出版社 * |
| 谢刚等: "《工业硅及硅铁生产》", 31 January 2016, 冶金工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114933464A (en) * | 2022-01-18 | 2022-08-23 | 衢州学院 | Steel slag permeable concrete and preparation method thereof |
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Application publication date: 20220107 |