CN105174823A - Asphalt concrete packing and asphalt concrete - Google Patents
Asphalt concrete packing and asphalt concrete Download PDFInfo
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- CN105174823A CN105174823A CN201410273224.XA CN201410273224A CN105174823A CN 105174823 A CN105174823 A CN 105174823A CN 201410273224 A CN201410273224 A CN 201410273224A CN 105174823 A CN105174823 A CN 105174823A
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- Prior art keywords
- bituminous concrete
- filler
- aggregate
- asphalt concrete
- packing
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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
- 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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Abstract
The invention discloses an asphalt concrete packing. The asphalt concrete packing comprises, by weight, 20-90 parts of ground steel slag, 0-25 parts of ore powder, 0-30 parts of fly ash, 4-7 parts of lime and 5-20 parts of cement. The ground steel slag is adopted as a main material to substitute the ore powder in the asphalt concrete packing disclosed in the invention, so the cost is saved; and a technology for preparing asphalt concrete by using the packing is simple, and apparatuses for implementing the technology can adopt present asphalt concrete process apparatuses. The asphalt concrete containing the packing has better application performance than traditional asphalt concretes adopting the ore powder as the packing.
Description
Technical field
The present invention relates to field of metallurgy, be specifically related to a kind of bituminous concrete utilizing steel-making slag powder to prepare as filler in metallurgical slag treatment process.
Background technology
At present, bituminous concrete mainly uses breeze and rubber etc. as filler.Breeze is very important integral part in asphalt concrete structure, a certain amount of breeze of a lot of all admixtures in bituminous concrete on present society.
Chinese invention patent CN201210239474 discloses a kind of breeze for asphalt and production method thereof, and its breeze provided is made up of Wingdale and additive.Additive comprises hydrophober and diatomite, and also can comprise the polymkeric substance for the modification of modified asphalt mixture finished product, its content is 5% ~ 10% of Wingdale quality.Chinese patent CN2013101670398 discloses a kind of Steel slag permeable asphalt mixture, it is by gathering materials, fiber stabilizer and pitch proportioning form, fiber stabilizer and pitch are respectively 0.2 ~ 0.4% and 4 ~ 5% that gather materials by weight percentage, gather materials uranium coarse aggregate, fine aggregate and filler composition, coarse aggregate is the mixing of slag or itself and Wingdale, granularity is by 19 ~ 13.2mm, 13.2 ~ 9.5mm, 9.5 ~ 4.75mm, tri-kinds of grating specification compositions, fine aggregate is Wingdale, granularity is 4.75 ~ 0mm, by weight percentage, each size specification gather materials and the content of filler is followed successively by: 15 ~ 17%, 26 ~ 29%, 43 ~ 45%, 11 ~ 13%, 2 ~ 4%, it uses, and steel slag instead is some or all of gathers materials, and adds water-permeating pitch mixed material porosity prepared by fiber stabilizer and pitch and meet the demands, and has higher Marshall stability and less leakage analysis losing and Superpave mix-design rate.Chinese patent 2010102894477 discloses a kind of part and utilizes slag to make the rubber-asphalt mixture of coarse fodder, belong to building material technical field used in road engineering, this compound comprises slag coarse aggregate, lithotome coarse aggregate, fine aggregate, filler and rubber asphalt.Part coarse aggregate used is slag, part coarse aggregate is basalt, diabase or limestone, filler used is the mixture of cement or limestone dust and slaked lime, rubber asphalt used is less than or equal to the waste and old cart tire glue powder production of 40 order for selecting granularity to be more than or equal to 20 orders, slag makes binder dense bitumen compound as coarse aggregate, rubber asphalt is made full use of in invention, this compound has the performances such as good high-temperature stable, anti-low-temperature cracking, normal temperature antifatigue, is applicable to all kinds of traffic route engineering.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of bituminous concrete, can not make full use of, and the filler of bituminous concrete is mainly the defect of breeze and rubber to overcome steel-making slag powder in prior art.
To achieve these goals or other objects, the present invention is achieved by the following technical solutions.
The invention discloses a kind of bituminous concrete, each component and the weight part content of the filler of described bituminous concrete are as follows:
Preferably, each component of the filler of described bituminous concrete and weight part content as follows:
Preferably, the specific surface area>=360m of described steel-making slag powder
2/ kg, 45 μm of screen over-size≤2wt%, 28 days active>=70%, largest particle diameter is less than 0.6mm, and the content of below diameter 0.15mm is no less than 90%, and the content of below diameter 0.075mm is no less than 70%.
The source of described steel-making slag powder is, the solid granular slag that the molten steel slag produced in converter or EAF Steelmaking Process obtains after the Technology of Steel Slag Processing such as cylinder, hot application, does not need through ageing.Again by the powder body material with certain fineness that these solid granular slags (being generally diameter 0-40mm) obtain after the technique such as grinding, magnetic separation.
Namely new production slag out just can be used for preparing.
Ageing is the proprietary term in the industry, refers to the time of placing half a year or several years, the f.CaO of slag inside is cleared up, thus slag is stablized, and can use safely.
Preferably, the technical requirements of described breeze S95 grade meeting GB/T18046 national standard or more.
Preferably, the technical requirements of described flyash meets the secondary ash of GB/T1596 national standard.
Preferably, the technical requirements of described lime meets JC/T479 national standard.
Preferably, described cement meets the regulation of the silicate cement of GB175 national standard.Strength of cement strength grade is P.O42.5.
After steel-making slag powder mixes with breeze, flyash by the preparation method of bituminous concrete filler as described above, then add lime, cement mixing, various component is mixed.
The invention also discloses a kind of bituminous concrete, described bituminous concrete is containing, for example filler described above, and feed composition and the mass percentage of described bituminous concrete are as follows:
Pitch 4 ~ 6%
Filler 3 ~ 9%
Remaining ingredient is aggregate.
Preferably, described aggregate is selected from coarse aggregate and fine aggregate.
Described coarse aggregate is stone, and the fineness of described stone is 3 ~ 10mm of JTGF40 regulation or the rubble of 5 ~ 10mm grade.
Described fine aggregate is selected from sand and aggregate chips.
Described aggregate chips is divided by the lower part of screen of 4.75mm or 2.36mm when being stone quarry fragmentation building stones.Aggregate chips is the 0 ~ 2.36mm grade meeting JTGF40 regulation.
The fineness of described sand is the medium sand that GB/T14684 specifies.
Preferably, described aggregate is the mixture of fine aggregate and coarse aggregate, and wherein the weight ratio of fine aggregate and coarse aggregate is 1:2.1 ~ 4.
More preferably, the weight ratio of fine aggregate and coarse aggregate is 1:3.
Preferably, described pitch is selected from the A level pitch meeting JTGF40.
The preparation method of bituminous concrete as described above can adopt the concrete preparation method of prior art medium pitch to obtain.Carry out mixing by above-mentioned raw materials can use.Also the method in prior art that can refer to during use processes.Such as can refer to the requirement construction of the national standards such as JTGF40-2004 standard specification for construction and acceptance of highway asphalt pavement.
The filler of bituminous concrete disclosed in the present invention is that main raw substitutes breeze with steel-making slag powder, has saved cost; Use this filler to prepare the technique of bituminous concrete simply, its processing unit can adopt existing bituminous concrete processing unit.Using the bituminous concrete containing filler of the present invention disclosed in the present invention to meet or exceed traditional take breeze as the performance of the bituminous concrete of filler.
Embodiment
Below by way of specific specific examples, embodiments of the present invention are described, those skilled in the art the content disclosed by this specification sheets can understand other advantages of the present invention and effect easily.The present invention can also be implemented or be applied by embodiments different in addition, and the every details in this specification sheets also can based on different viewpoints and application, carries out various modification or change not deviating under spirit of the present invention.
Embodiment 1 ~ 4
Embodiment 1 ~ 3 is the embodiment of the filler of bituminous concrete described in preparation the present invention.Embodiment 4 as a comparison case, namely conventionally in conventional concrete fill: the breeze of 100%.
Each component and the weight percentage of the concrete filler of embodiment 1 ~ 3 medium pitch are as shown in table 1.Wherein, the parameter of steel-making slag powder is specific surface area 456m
2/ kg, 45um tail over 1.1wt%; The breeze of S95 grade; Second class powered coal ash; Unslaked lime; Strength grade is the cement of 42.5.
The method preparing the filler of bituminous concrete according to the formula of embodiment 1 ~ 3 is: mixed by proportioning by above-mentioned raw materials.
Table 1
Embodiment 5 ~ 8
Embodiment 5 ~ 8 prepares the embodiment of bituminous concrete described in the present invention for using the filler as preparation in embodiment 1 ~ 4 respectively.
Particularly, embodiment 5 medium pitch concrete uses filler in embodiment 1, and embodiment 6 medium pitch concrete uses filler in embodiment 2, and embodiment 7 medium pitch concrete uses filler in embodiment 3.Embodiment 8 medium pitch concrete uses filler in embodiment 4, namely uses filler in comparative example.
Each component and the proportioning of bituminous concrete described in embodiment 5 ~ 8 are as shown in table 2.
The preparation method of the bituminous concrete described in embodiment 5 ~ 8 is for mix each raw material.
Described pitch is selected from the A level pitch meeting JTGF40.
Table 2
| Material component | Ratio |
| 3-10mm rubble | 28 |
| 5-10mm rubble | 32 |
| Aggregate chips (0-2.36mm) | 12 |
| Medium sand | 9 |
| Filler | 8 |
| Pitch | 4.9 |
In embodiment 5 ~ 8, the performance of the bituminous concrete of preparation is as shown in table 3.
Table 3
Can be obtained by table 3, use the Performance Ratio of bituminous concrete prepared by bituminous concrete filler disclosed in the present invention to use the performance of pure breeze to get well, and the filler cost that the present invention uses be lower, has very large price advantage.
Embodiment 9 ~ 10
The filler as preparation in embodiment 1 is used to prepare the embodiment of bituminous concrete described in the present invention.
Bituminous concrete is prepared according to method in formula in table 4 and embodiment 5 ~ 8.
Table 4
| Material component | Embodiment 9 | Embodiment 10 |
| 3-10mm rubble | 50 | 34 |
| 5-10mm rubble | 13 | 34 |
| Aggregate chips (0-2.36mm) | 18 | 8.5 |
| Medium sand | 12 | 8.5 |
| Filler | 3 | 9 |
| Pitch | 4 | 6 |
Table 5
The above is only better embodiment of the present invention, not does any pro forma restriction to technical scheme of the present invention.Every above embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all fall within the scope of protection of the present invention.
Claims (10)
1. a filler for bituminous concrete, is characterized in that, each component and the weight part content of the filler of described bituminous concrete are as follows:
2. the filler of bituminous concrete as claimed in claim 1, it is characterized in that, each component and the weight part content of the filler of described bituminous concrete are as follows:
3. the filler of bituminous concrete as claimed in claim 1, is characterized in that, the specific surface area>=360m of described steel-making slag powder
2/ kg, 45 μm of screen over-size≤2wt%, 28 days active>=70%, largest particle diameter is less than 0.6mm.
4. the filler of bituminous concrete as claimed in claim 1, is characterized in that, the content that the diameter of described steel-making slag powder is less than or equal to 0.15mm is no less than 90%, and the content that diameter is less than or equal to 0.075mm is no less than 70%.
5. a bituminous concrete, is characterized in that, described bituminous concrete is containing, for example the arbitrary described filler of Claims 1 to 4, and feed composition and the mass percentage of described bituminous concrete are as follows:
Pitch 4 ~ 6%
Filler 3 ~ 9%
Remaining ingredient is aggregate.
6. bituminous concrete as claimed in claim 5, it is characterized in that, described aggregate is selected from coarse aggregate and fine aggregate.
7. bituminous concrete as claimed in claim 6, it is characterized in that, described fine aggregate is selected from sand and aggregate chips.
8. bituminous concrete as claimed in claim 5, it is characterized in that, described aggregate is selected from the mixture of coarse aggregate and fine aggregate, and the weight ratio of described fine aggregate and coarse aggregate is 1:2.1 ~ 4.
9. bituminous concrete as claimed in claim 8, it is characterized in that, the weight ratio of described fine aggregate and coarse aggregate is 1:3.
10. bituminous concrete as claimed in claim 5, is characterized in that, described coarse aggregate be selected from the rubble of 3 ~ 10mm grade, 5 ~ 10mm grade and 3 ~ 5mm grade one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410273224.XA CN105174823A (en) | 2014-06-18 | 2014-06-18 | Asphalt concrete packing and asphalt concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410273224.XA CN105174823A (en) | 2014-06-18 | 2014-06-18 | Asphalt concrete packing and asphalt concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105174823A true CN105174823A (en) | 2015-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410273224.XA Pending CN105174823A (en) | 2014-06-18 | 2014-06-18 | Asphalt concrete packing and asphalt concrete |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108358487A (en) * | 2018-03-20 | 2018-08-03 | 和县祥龙沥青混凝土有限公司 | A kind of bituminous concrete filler and bituminous concrete |
| CN109503037A (en) * | 2017-09-15 | 2019-03-22 | 南京麒麟科学仪器集团有限公司 | Bituminous concrete and preparation method thereof |
| CN110255940A (en) * | 2019-06-26 | 2019-09-20 | 海南蓝岛环保产业股份有限公司 | A kind of bituminous concrete miberal powder and preparation method thereof |
| CN113620654A (en) * | 2021-09-06 | 2021-11-09 | 昆明理工大学 | Gravel asphalt mixture and preparation method thereof |
| CN114014570A (en) * | 2022-01-06 | 2022-02-08 | 天津新展高速公路有限公司 | Asphalt concrete filler, asphalt concrete and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1055647A2 (en) * | 1996-10-17 | 2000-11-29 | Trading and Recycling Company Sint Truiden | Process for processing stainless steel slags |
| CN1891758A (en) * | 2005-07-04 | 2007-01-10 | 上海宝钢冶金建设公司 | Asphalt mixture utilizing slag micropowder as filler |
-
2014
- 2014-06-18 CN CN201410273224.XA patent/CN105174823A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1055647A2 (en) * | 1996-10-17 | 2000-11-29 | Trading and Recycling Company Sint Truiden | Process for processing stainless steel slags |
| CN1891758A (en) * | 2005-07-04 | 2007-01-10 | 上海宝钢冶金建设公司 | Asphalt mixture utilizing slag micropowder as filler |
Non-Patent Citations (5)
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| 孙家瑛等: "钢渣微粉对沥青混合料性能影响研究", 《公路交通科技》 * |
| 张勇等: "水泥和消石灰对沥青混合料抗水损害效果试验研究", 《北方交通》 * |
| 张华等: "磨细钢渣粉对花岗岩沥青混合料水损害的影响", 《建材世界》 * |
| 张金升等: "《沥青混合料及其设计与应用》", 31 December 2013, 哈尔滨工业大学出版社 * |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109503037A (en) * | 2017-09-15 | 2019-03-22 | 南京麒麟科学仪器集团有限公司 | Bituminous concrete and preparation method thereof |
| CN108358487A (en) * | 2018-03-20 | 2018-08-03 | 和县祥龙沥青混凝土有限公司 | A kind of bituminous concrete filler and bituminous concrete |
| CN110255940A (en) * | 2019-06-26 | 2019-09-20 | 海南蓝岛环保产业股份有限公司 | A kind of bituminous concrete miberal powder and preparation method thereof |
| CN113620654A (en) * | 2021-09-06 | 2021-11-09 | 昆明理工大学 | Gravel asphalt mixture and preparation method thereof |
| CN114014570A (en) * | 2022-01-06 | 2022-02-08 | 天津新展高速公路有限公司 | Asphalt concrete filler, asphalt concrete and preparation method thereof |
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