CN1072400A - The making method of steel bridge deck pavement material - Google Patents
The making method of steel bridge deck pavement material Download PDFInfo
- Publication number
- CN1072400A CN1072400A CN91107535A CN91107535A CN1072400A CN 1072400 A CN1072400 A CN 1072400A CN 91107535 A CN91107535 A CN 91107535A CN 91107535 A CN91107535 A CN 91107535A CN 1072400 A CN1072400 A CN 1072400A
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- CN
- China
- Prior art keywords
- pavement material
- powder
- steel
- bridge deck
- modified asphalt
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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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Classifications
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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
- C04B28/10—Lime cements or magnesium oxide cements
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
- C04B2111/00525—Coating or impregnation materials for metallic surfaces
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
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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
Abstract
A kind of manufacture method of steel bridge deck pavement material, earlier powdery thermoplastic rubber, powder or particulate state polymer organic polymer and pitch are added in the container of belt stirrer after good by required weight percent weighing, be heated to 150-220 ℃, stirred 1.5-2.5 hours, and made modified asphalt binders.Then with the modified asphalt binders that makes, strongthener and contain the sandstone material of active breeze (slaked lime powder or a species of small clam living in fresh water shell powder) uniform mixing can on-the-spot making in proportion.Pavement material of the present invention adapts to various bridge floor of steel plate, especially adapts to orthotropic plate bridge high-strength, light-duty, large span.This pavement material has good high-temperature stability and low-temperature cracking-resistance, and withstand voltage, shock-resistant, anti-shear fracture, antifatigue, rebound resilience are good.
Description
The making method of steel bridge deck pavement material of the present invention relates to the manufacturing technology of steel bridge deck pavement material, is applicable to various Steel Slab Bridges, is particularly useful for the mating formation of orthotropic plate bridge floor of high-strength, light-duty, large span.
In the bridge construction engineering, bridge floor of steel plate, especially the pavement material of the bridge floor of steel plate of large deflection, not only require it in the Various Seasonal weather and between the bridge floor of steel plate, to adhere to each other securely all the time, but also require to have good rebound resilience, withstand voltage, shock-resistant, anti-shear fracture performance so that bear the various stress-strains that produce under solid axle, the heavy traffic situation, thereby guarantees in use not produce crack, rut, gathers around bag or passes into the ridge bar.Abroad, moral, day, beautiful, method, the Steel Slab Bridge bridge deck pavement material that state built such as Holland is used pitch mostly, the epoxy tar-bitumen, epoxy resin asphalt, emulsified bitumens etc. are as the pavement material of bridge floor of steel plate, and adopt the construction of advanced pressure injection or metallize technology, improve the high-temperature stability and the low-temperature cracking-resistance of pavement material, and the tackiness of asphalt concrete layer and Steel Slab Bridge panel, for producing in the steel bridge deck in the layer of mating formation that big hogging moment position causes its top the crack appears, gather around bag, rut and " shelling ", phenomenons etc. still are difficult to overcome.
Because the oil of China mostly is intermediate base or paraffin wax foundation stone oil greatly, therefore, almost there is not fine can be directly used in the pitch that high grade highway pavement or bridge floor of steel plate are mated formation.The domestic pavement material that is used for bridge floor of steel plate has rubber coal-tar pitch, asphalt rubber, chloroprene rubber pitch at present.Their practical effect is not good.For example, make the deck paving of steel plate with the asphalt concrete of neoprene latex modification, because chloroprene rubber belongs to red brittleness glue kind, the pavement material made from it can't adapt to the bigger working order of steel bridge amount of deflection under solid axle, the heavy traffic situation, use and just occur crack and hole groove soon, until the layer " shelling " fully of mating formation, hindered the normal traffic operation.For this reason, in the bridge floor of steel plate pavement construction that has, spot welding Twisted Steel on bridge floor of steel plate is provided with anti-feather key or reinforcing mat earlier, and then making neoprene latex modification asphalt concrete layer, overcomes asphalt concrete paving with this and pushes phenomenon.Doing has so on the one hand increased cost, has increased construction and maintenance difficulty in the future, still is difficult to overcome the crack on the other hand, pushes, rut, also often has reinforcing bar to expose situation and takes place.
The objective of the invention is, adopt homemade road asphalt, industrial chemicals, strongthener etc. for the bridge of bridge floor of steel plate provide a kind of not only in Various Seasonal (weather condition such as high temperature, cold, rainy humidity) can both with the bridge floor of steel plate good adhesion, and the manufacture method of the steel bridge deck pavement material of good rebound resilience, withstand voltage, shock-resistant, anti-shear fracture is arranged under the heavy traffic situation.
Technical scheme of the present invention is, adopts rubber (can utilize the old tire rubber powder, ball, overshoes rubber powder etc.) to improve that bituminous is sticking, elasticity.Adopt the polymer organic polymer of melting index (g/min) 1～10, (as polyethylene, polypropylene etc.) improve the anti-flowability of bituminous.In the pavement material of forming thus, adopt the sandstone mineral aggregate, and in the sandstone mineral aggregate＜breeze of 0.074mm particle diameter partly mixes water stability and the resistance to flow energy that active breeze (slaked lime powder, a species of small clam living in fresh water shell powder etc.) improves pavement material.And in pavement material, mix strongthener (steel fiber or bamboo fibers), improve shock-resistant, withstand voltage, shearing resistance is split and the ability of antifatigue etc.
When the present invention makes, earlier powdery thermoplastic rubber (can be utilized old tire glue, vulcanized rubber, reclaimed rubber, ball, overshoes glue, assorted glue etc.) and powder or particulate state polymer organic polymer (as high-pressure polyethylene, polypropylene, vinyl acetate, polyvinyl alcohol etc.) and road asphalt weighing as following weight percent:
Rubber: polymkeric substance: pitch=(12.3-24.1): (2.9-5.7): (71.4-84)
Be placed on be heated to 150～220 ℃ in the container of belt stirrer after, stirred 1.5～2.5 hours, obtain modified asphalt binders.Then by weight percentage this modified asphalt binders and strongthener (steel fiber or bamboo fibers) and the sandstone mineral aggregate that contains active breeze (slaked lime powder or a species of small clam living in fresh water shell powder):
Binder: mineral aggregate: strongthener=(7-10): (84.4-89.7): (3.3-5.2)
Abundant mix can be uniformly dispersed strongthener under 160-200 ℃ of temperature, is steel bridge deck pavement material of the present invention.Wherein active material (slaked lime powder or a species of small clam living in fresh water shell powder) accounts for sandstone mineral aggregate 1.5～3% weight percents.
The present invention has following advantage:
1, the present invention compares with unfilled bitumen in the time of 60 ℃, and viscosity improves 10-15 doubly, softening temperature＞60 ℃.The present invention not only makes between modified asphalt binders and sandstone mineral aggregate and the strongthener has good adhesivity, (the adhesivity grade is Pyatyi, water-boiling method), and can with the firm adhesion of bridge floor of steel plate.So steel bridge deck pavement material of the present invention has the characteristics of cohesion height, water-tolerant, shock-resistant, anti-shear fracture, compression, rebound resilience good (the physics and chemistry technical performance index sees Table, two).
2, pavement material manufacturing process of the present invention is simple, easy to operate, can prepare at the construction field (site), does not need specific installation, is easy to the workmen and grasps.
3, can use conventional equipment during pavement material of the present invention construction, and not need the anti-feather key of spot welding reinforcing bar or lay reinforcing mat, mat formation conveniently, the construction time is short, if need local or all change or maintenance all is very easily.
4, the selected starting material of the present invention, domestic resource is very sufficient, low price is with low cost, high-strength for building, light-duty, greatly stride the footpath the orthotropic plate steel bridge ideal pavement material is provided.
The making of embodiment 1, modified asphalt binders
At first with rubber powder, the high-pressure polyethylene of particulate state or powder, and road asphalt, weighing as following weight percent good,
Old rubber: high-pressure polyethylene: pitch=16: 5: 79
Then pitch is packed in the tar kettle of belt stirrer, be heated to 150-180 ℃ and make it fusion, then in-levigate old the rubber powder of 16-+50 order (i.e. left alone without help the staying on 50 mesh sieves by 16 mesh sieve holes) and the tar kettle that high-pressure polyethylene mixes belt stirrer, continue to be heated to 180-220 ℃, pitch and rubber and polyethylene generation physical-chemical reaction, process stirred and makes modified asphalt binders in 1.5-2.5 hour.
The making of embodiment 2, steel bridge deck pavement material
The first modified asphalt binders that embodiment 1 is made, sieve diameter is 15(25)-sandstone mineral aggregate (wherein active breeze slaked lime powder content is the 1.5-3% of mineral aggregate weight) and the steel fiber weighing as following weight percent of 0.074mm is good:
Binder: mineral aggregate: steel fiber=(7: 89: 4)
Modified asphalt binders, sandstone mineral aggregate and steel fiber are put together and are mixed, and make it uniform distribution then, have just made steel bridge deck pavement material of the present invention.On bridge floor of steel plate, pave compaction moulding with conventional equipment.This pavement material not only can stand the strong service requirements of large deflection and impact shock through facts have proved 2 years more, and can stand the climate change of high temperature (the upper and lower temperature of bridge floor up to 66 ℃ and 57 ℃), rainy, low temperature and moisture, all the time in aggregates with the firm adhesion of bridge floor of steel plate, bear the frequent alternating action of vehicular traffic and climate change jointly, do not produce crack, rut, gather around the bag phenomenon, more do not cheat groove and form the ridge bar.
Table one, modified asphalt binders technical performance
| Sequence number | Project | Index |
| 1 | After the binder heating, 0 ℃ of ductility (cm) ductility resilience percentage (%) | Be no less than 3.5 and be no less than 45 |
| 2 | (γ=0.1 second of viscosity in the time of 60 ℃－1) (Pa.s) ductility resilience percentage (%) | Greater than 3000 less than 2 |
| 3 | Softening point (℃) mineral aggregate asphalt binder softening point (℃) | Be not less than 60 greater than 90 |
| 4 | Adhesiveness grade (water-boiling method 0.5 hour) with mineral aggregate and steel fibre | All greater than Pyatyi |
Table two, steel bridge deck pavement material technical performance
| Sequence number | Project | Index |
| 1 | 60 ℃ of immersion 48 hours front and back Marshall stability (W) ductility resilience percentage (%) flow valuves (1/100cm) immersion front-and rear-view stiffness (KW/m) | Greater than 10 * 103Greater than being not more than 55 2000-4500 after the 30-45 immersion before 80% immersion |
| 2 | Uniaxial compression creep test resilience percentage (%) | 90 |
| 3 | Unconfined compressive strength (MPa) under the 60-70 ℃ of high temperature | Be not less than 15 |
| 4 | Material decreases rate (%) | Be not more than 15 |
| 5 | Two sides direct shear strength (MPa) during shear rate 2-5mm/min in the time of 60 ℃ | Be not less than 0.272～0.611 |
| 6 | The 5-60 ℃ of impact fracture energy (J/cm that impact fatigue intensity is the pitch compound3) | 2-5 times of 1-5 |
| 7 | Flexural tensile strength (MPa) under the 0-15 ℃ of low temperature | 4.5-2.5 |
| 8 | (0-15 ℃) ultimate deformation value recruitment percentage (%) | 24-97 |
| 9 | (0-15 ℃) bending rollering modulus decline percentage (%) | 33-45 |
Claims (5)
1, a kind of manufacture method of steel bridge deck pavement material, it is characterized in that: (1) presses (71.4-84) with pitch, powdery thermoplastic rubber, powder or particle polymer organic polymer earlier: (12.3-24.1): (2.9-5.7) the weight percent weighing is good, then they are poured in the container of belt stirrer, be heated to 150-220 ℃, stirred 1.5-2.5 hour, and made modified asphalt binders.(2) with the above-mentioned modified asphalt binders that makes, strongthener and the sandstone mineral aggregate that contains active breeze by (7-10): (3.3-5.2): (84.8-89.7) weight percent under 160-200 ℃ of temperature fully uniform mixing promptly be prepared into steel bridge deck pavement material.
2, pavement material according to claim 1 is characterized in that: described thermoplastic elastomer can utilize: old tire glue, and vulcanized rubber, reclaimed rubber, ball, overshoes glue and assorted glue will be finely ground to during use-16-+50 purpose powder.
3, pavement material according to claim 1 is characterized in that, described polymer organic polymer is: the high-pressure polyethylene of melting index 1-10, polypropylene, vinyl acetate, polyvinyl alcohol.
4, pavement material according to claim 1 is characterized in that, described strongthener is: steel fiber, bamboo fibers.
5, pavement material according to claim 1 is characterized in that, described active breeze is: slaked lime powder or a species of small clam living in fresh water shell powder, its content are the 1.5-3% weight percents of sandstone mineral aggregate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91107535A CN1072400A (en) | 1991-11-19 | 1991-11-19 | The making method of steel bridge deck pavement material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91107535A CN1072400A (en) | 1991-11-19 | 1991-11-19 | The making method of steel bridge deck pavement material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1072400A true CN1072400A (en) | 1993-05-26 |
Family
ID=4908871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN91107535A Pending CN1072400A (en) | 1991-11-19 | 1991-11-19 | The making method of steel bridge deck pavement material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1072400A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101250857B (en) * | 2008-03-20 | 2010-11-03 | 山东省交通科学研究所 | Method for continuous processing T beam bridge floor |
| CN101748675B (en) * | 2010-01-25 | 2012-05-23 | 重庆鹏方路面工程技术研究院有限公司 | Anti-freezing road surface salt-sealed layer and method for constructing same |
| CN104446159A (en) * | 2014-11-13 | 2015-03-25 | 长安大学 | Preparation method of bamboo fiber modified asphalt mixture |
| CN107421820A (en) * | 2017-08-25 | 2017-12-01 | 南京林业大学 | Asphalt mastic self-healing properties evaluation method based on shape-memory properties |
| CN109704653A (en) * | 2019-03-08 | 2019-05-03 | 广东中煌建筑工程有限公司 | A kind of frost-cracking-preventing road surface |
-
1991
- 1991-11-19 CN CN91107535A patent/CN1072400A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101250857B (en) * | 2008-03-20 | 2010-11-03 | 山东省交通科学研究所 | Method for continuous processing T beam bridge floor |
| CN101748675B (en) * | 2010-01-25 | 2012-05-23 | 重庆鹏方路面工程技术研究院有限公司 | Anti-freezing road surface salt-sealed layer and method for constructing same |
| CN104446159A (en) * | 2014-11-13 | 2015-03-25 | 长安大学 | Preparation method of bamboo fiber modified asphalt mixture |
| CN104446159B (en) * | 2014-11-13 | 2016-07-06 | 长安大学 | A kind of preparation method of bamboo fibre modified asphalt mixture |
| CN107421820A (en) * | 2017-08-25 | 2017-12-01 | 南京林业大学 | Asphalt mastic self-healing properties evaluation method based on shape-memory properties |
| CN109704653A (en) * | 2019-03-08 | 2019-05-03 | 广东中煌建筑工程有限公司 | A kind of frost-cracking-preventing road surface |
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