CN101863638A - Calcium silicate slag reinforced asphalt mixture - Google Patents
Calcium silicate slag reinforced asphalt mixture Download PDFInfo
- Publication number
- CN101863638A CN101863638A CN201010228823A CN201010228823A CN101863638A CN 101863638 A CN101863638 A CN 101863638A CN 201010228823 A CN201010228823 A CN 201010228823A CN 201010228823 A CN201010228823 A CN 201010228823A CN 101863638 A CN101863638 A CN 101863638A
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- CN
- China
- Prior art keywords
- asphalt
- asphalt mixture
- calcium silicate
- silicate slag
- mixture
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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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- Road Paving Structures (AREA)
Abstract
The invention relates to a calcium silicate slag reinforced asphalt mixture, belonging to the building materials field. The mixture comprises the following raw materials by weight percent: 2%-5.6% of asphalt, 5%-15% of calcium silicate slag, 86.8%-90.2% of aggregate and 0.6-4% of mineral fine. In the asphalt mixture, calcium silicate slag is added to increase the density of the asphalt mixture, reduce the porosity and increase the flow value and the adhesive force on the aggregates such as stones, thus the gradation of the asphalt mixture can be more reasonable, the asphalt concrete can be more dense, have higher density and have higher shear strength and anti-deforming ability at the high temperature, and the service life of the asphalt pavement can be prolonged. The invention uses the solid waste of industrial production instead of nonrenewable natural resources so as to protect the nonrenewable natural resources, solve the problems that the industrial solid waste pollutes the environment, occupies the land resource and the like, and reduce the cost of the asphalt mixture.
Description
Technical field
The present invention relates to a kind of calcium silicate slag reinforced asphalt mixture, the asphalt especially for road deck and deck paving are used belongs to building material field.
Background technology
Development along with Hyundai Motor and communications, the requirement of road pavement is more and more higher, therefore the tempo of motorway, city expressway, trunk roads and other highways increases substantially, and asphalt is as the main raw on road surface, and its demand also is significantly to improve.Asphalt is is normally mixed and stirred the general name of the compound that forms by mineral aggregate and asphaltic binder.Breeze in China's asphalt is mainly used limestone powder and ground dolomite, secondly is basalt powder, flyash, diatomite in powder, also adopts cement, slaked lime etc. sometimes.Major part is non-renewable natural resources in these fillers, makes the cost height of asphalt.
Summary of the invention
The object of the present invention is to provide a kind of at high temperature possess stronger resistance to shear and non-deformability, prolong the bituminous pavement calcium silicate slag reinforced asphalt mixture in work-ing life.
Technical solution: the prescription of calcium silicate slag reinforced asphalt mixture of the present invention, by weight percentage: pitch 2%-5.6%, silico-calcium slag 5%-15%, gathering materials is 86.8%-90.2%, breeze 0.6%-2.8%.
Of the present invention gathering materials is the compound of building stones and sand, building stones by weight: sand=20-40: 30-60.
The present invention is owing to added the silico-calcium slag in asphalt, along with the increase of silico-calcium slag content, the density of asphalt increases, and porosity reduces, and flow valuve increases, and improves with the adhesive power of aggregate such as stone.This physics and chemical property with the silico-calcium slag is relevant, and the granularity of common silico-calcium slag is very thin and be alkalescence, and the grating of asphalt is more reasonable, so just makes bituminous concrete more closely knit, and density also increases thereupon.The present invention at high temperature possesses stronger resistance to shear and non-deformability, prolongs bituminous pavement work-ing life.
The present invention substitutes non-renewable natural resources with industrial solid waste resource; non-renewable natural resources is protected; and solved industrial solid castoff to the pollution of environment, to problems such as taking of land resources; can also reduce simultaneously the cost of asphalt, can be described as killing three birds with one stone.A kind of solid waste resource that the silico-calcium slag is so just.
Compared with prior art, the present invention has following tangible beneficial effect.
(1) the silico-calcium slag is the product behind the aluminum-extracted pulverized fuel ash, and output is huge, produces the silico-calcium slag that one ton aluminum oxide will produce the 10-12 ton.The effective and reasonable utilization of silico-calcium slag has directly determined the success or failure of aluminum-extracted pulverized fuel ash technology.As the asphalt of pavement of road material, annual consumption is huge, and the breeze that the silico-calcium slag replaces in the asphalt will be the important channel that the silico-calcium slag for comprehensive utilizes.
(2) after breeze replaced with the silico-calcium slag in the asphalt, asphalt at high temperature possessed stronger resistance to shear and non-deformability.
(3) the silico-calcium slag is cheap, can reduce the production cost of asphalt.
Embodiment
Preparation method's step of calcium silicate slag reinforced asphalt mixture is as follows:
1) starting material carry out proportioning by weight percentage, pitch 4%, and silico-calcium slag 6%, breeze 3%, building stones are rubble 34%, sand 53%;
2) material with step 1) carries out mix, and control building stones temperature is at 140 ± 5 ℃ in the mix process, and asphalt temperature is 150 ℃, and duration of mixing is 50 seconds, and wherein the dry mixing time is 10 seconds;
3) discharging, drop temperature are transported to the place that paves as early as possible after the discharging between 135-145 ℃, temperature is not less than 120 ℃ and paves;
4) compacting, by first pressing, multiple press, the final pressure three phases carries out, and just is pressed in mixture laying and finishes to carry out under the comparatively high temps of back, compresses again to carry out after being connected on first pressing, temperature is more than 110 ℃, the final pressure temperature is not less than 90 ℃.
Claims (2)
1. calcium silicate slag reinforced asphalt mixture is characterized in that, comprises the weight percent of following raw materials according: pitch 2%-5.6%, silico-calcium slag 5%-15%, the 86.8%-90.2% that gathers materials, breeze 0.6%-4%.
2. calcium silicate slag reinforced asphalt mixture according to claim 1 is characterized in that, gathers materials to be the compound of building stones and sand, building stones by weight: sand=20-40: 30-60.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010228823A CN101863638A (en) | 2010-07-03 | 2010-07-03 | Calcium silicate slag reinforced asphalt mixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010228823A CN101863638A (en) | 2010-07-03 | 2010-07-03 | Calcium silicate slag reinforced asphalt mixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101863638A true CN101863638A (en) | 2010-10-20 |
Family
ID=42955607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010228823A Pending CN101863638A (en) | 2010-07-03 | 2010-07-03 | Calcium silicate slag reinforced asphalt mixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101863638A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105753375A (en) * | 2016-02-29 | 2016-07-13 | 河南城建学院 | Asphalt mixture taking red mud as filler and preparation method thereof |
| CN105819750A (en) * | 2016-03-10 | 2016-08-03 | 重庆三峰环境产业集团有限公司 | Municipal solid waste incineration fly ash directly used as filler of asphalt mixture, and cleaning application of asphalt mixture in pavements |
| CN105819770A (en) * | 2016-03-31 | 2016-08-03 | 北京盛广拓公路科技有限公司 | Cold-recycled asphalt concrete grading method |
| CN106220044A (en) * | 2016-07-19 | 2016-12-14 | 大唐国际发电股份有限公司高铝煤炭资源开发利用研发中心 | A kind of mix asphalt joining silico-calcium ground-slag and its preparation method and application |
| CN112408862A (en) * | 2020-11-24 | 2021-02-26 | 神华准能资源综合开发有限公司 | Asphalt concrete |
-
2010
- 2010-07-03 CN CN201010228823A patent/CN101863638A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 《中国优秀博硕士学位论文全文库(硕士)工程科技II辑》 20050915 尹利军 粉煤灰、增钙渣、机制砂在沥青混合料中的应用研究 论文第6-7，10，44-46页 1-2 , 2 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105753375A (en) * | 2016-02-29 | 2016-07-13 | 河南城建学院 | Asphalt mixture taking red mud as filler and preparation method thereof |
| CN105819750A (en) * | 2016-03-10 | 2016-08-03 | 重庆三峰环境产业集团有限公司 | Municipal solid waste incineration fly ash directly used as filler of asphalt mixture, and cleaning application of asphalt mixture in pavements |
| CN105819750B (en) * | 2016-03-10 | 2018-04-10 | 重庆三峰环境产业集团有限公司 | Clean applications of the domestic garbage incineration flyash directly as the filler of asphalt and its in road surface |
| CN105819770A (en) * | 2016-03-31 | 2016-08-03 | 北京盛广拓公路科技有限公司 | Cold-recycled asphalt concrete grading method |
| CN105819770B (en) * | 2016-03-31 | 2018-01-02 | 北京盛广拓公路科技有限公司 | Cold recycled asphalt concrete grading method |
| CN106220044A (en) * | 2016-07-19 | 2016-12-14 | 大唐国际发电股份有限公司高铝煤炭资源开发利用研发中心 | A kind of mix asphalt joining silico-calcium ground-slag and its preparation method and application |
| CN112408862A (en) * | 2020-11-24 | 2021-02-26 | 神华准能资源综合开发有限公司 | Asphalt concrete |
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
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Application publication date: 20101020 |