CN101418126B - Deck joint filling material and preparation method thereof - Google Patents
Deck joint filling material and preparation method thereof Download PDFInfo
- Publication number
- CN101418126B CN101418126B CN2007101577853A CN200710157785A CN101418126B CN 101418126 B CN101418126 B CN 101418126B CN 2007101577853 A CN2007101577853 A CN 2007101577853A CN 200710157785 A CN200710157785 A CN 200710157785A CN 101418126 B CN101418126 B CN 101418126B
- Authority
- CN
- China
- Prior art keywords
- filling material
- styrene
- joint filling
- preparation
- butadiene
- Prior art date
- 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.)
- Active
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Structures (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention provides a filling material for a bridge deck joint. The filling material comprises the following compositions: 70 to 90 percent of propane deasphalted asphalt, 6 to 15 percent of extract oil and 4 to 15 percent of styrene-butadiene-styrene segmented copolymer. The preparation method is as follows: the asphalt is heated to a temperature of between 100 and 200 DEG C; and the extract oil and the styrene-butadiene-styrene segmented copolymer are added and mixed for 40 to 120 minutes at a maintained preparation temperature of between 170 and 190 DEG C and at a stirring speed of between 4,000 and 5,000 revolutions per minute until the mixture is uniformly mixed, and the filling material for the bridge deck joint is obtained. The filling material has the characteristics of simple formula, good high temperature and low temperature resistance, and capability of being used for paving an expansion joint of a bridge deck.
Description
Technical field
The present invention relates to a kind of deck joint filling material and preparation method thereof, this deck joint filling material can be used for mating formation of bridge pavement expansion joint.
Background technology
Bridge expanssion joint is the important component part of bridge structure, and the quality of bridge expanssion joint performance directly has influence on the life-span of bridge and the comfortableness of driving.At present both at home and abroad the bridge expanssion joint that uses mainly contains U type zinc-iron skin, steel slide plate, dredges the shape tooth and add cover plate, rubbery expansion joint and hair and rein in seam etc.But, the survey showed that to the bridge expanssion joint use properties, defeathering is reined in outside the seam, other bridge expanssion joint in good condition working life very short, generally have only 2-3, long also have only 5-6, thereby cause the continuous maintenance at expansion joint, direct economic loss is very big, and the indirect economic loss and the social influence that bring because of suspending traffic when maintenance and reparation are more obvious.Though it is better that hair is reined in the seam result of use, its cost height, the construction period is long, the construction technology more complicated.
The filling type bridge expanssion joint is a kind of emerging bridge expanssion joint, and its groundwork mechanism is to rely on the elasticity of snappiness special asphalt binder and the mixture of building stones formation to adapt to the bridge end displacement that produces owing to temperature and action of traffic loading.Simultaneously, but because it has plurality of advantages such as long and half range construction uninterrupted traffic easy construction, with low cost, driving comfortable, working life concurrently extremely the various countries scientific research personnel favor.
Filling type bridge expanssion joint packing material mainly contains three classes at present: plain asphalt class, rubber asphalt class and polyurethane kind.Plain asphalt class joint filling material is cheap and easy to get, and it is more convenient to construct, but the ubiquity use properties is poor, and the life-span is shorter, and poor flexibility and cohesive force more easily do not come off etc. not enough by force, progressively are eliminated.The polyurethane kind joint filling material has advantages such as cohesive force is strong, elasticity is high, ageing-resistant performance is good, but price is higher, and raw material is rare, and cost increases.Rubber asphalt class joint filling material comprises the modifying asphalt that adds various rubber modifiers and other admixture, and this class joint filling material ductility is good, and good elasticity is arranged, but most component complexity is produced difficulty, and use properties needs further to improve.
CN00101729.2 discloses a kind of special rubber for expansion joint of construction mass and preparation method thereof, mainly be made up of thermoplastic elastomer, styrene-butadiene rubber(SBR), pitch, lead sulfate, coal tar, the preparation method is for adding the even postcooling moulding that is mixed of other component melts in fused coal tar.This technology is used plurality of raw materials, and mainly is suitable for the use of minor structure thing expansion joint, and use properties needs further to improve.CN94118370.X discloses a kind of joint of bridge extrusome constructional method that constitutes with lastics and rubble filling, and lastics comprises (weight percentage meter): rubber 3-5, plastics 15-18, pitch 70-75, resol 2-2.5, surplus are filler.This lastics component is comparatively complicated, and aspects such as anti-aging simultaneously, high temperature performance need further to improve.
Summary of the invention
At the deficiencies in the prior art, the invention provides a kind of deck joint filling material simple, that use properties is good of forming.Simultaneously, the invention provides a kind of preparation method of deck joint filling material.
Deck joint filling material of the present invention contains by weight: the de-oiled asphalt that propane deasphalting process obtains (to call third diasphaltene in the following text) 70%～90%, lubex (extracting oil out) 6%～15% to call in the following text, styrene-butadiene-styrene block copolymer (to call SBS in the following text) 4%～15%.
Deck joint filling material of the present invention is preferably formed and is contained: third diasphaltene 75%～85%, extract oil 7%～11% out, and SBS 8%～14%.
In the deck joint filling material of the present invention, the third deasphalting colloid instability index (Ic) is not higher than 0.25, is generally 0.15～0.25, can obtain third diasphaltene of required character by the condition of adjusting propane deasphalting process.The colloid instability index is calculated as follows: Ic=(saturated branch+bituminous matter)/(colloid+fragrance divides).
In the deck joint filling material of the present invention, extract oil and SBS out and can be this area conventional products.Extract preferably 45%～50% (wt) of oily alkane content out, aromaticity content is 40%～45% (wt) preferably.The molecular weight of SBS is preferably 80,000～300,000, and styrene content is preferably 25%～35% (wt).
Can also add other one or more suitable component in the deck joint filling material of the present invention, improve required product property, improve product stability, add mineral filler and improve product strength, add the hardness etc. that plastic material improves product as adding linking agent.
Deck joint filling material preparation method of the present invention is as follows: third diasphaltene is heated to 100～200 ℃, is preferably 110～170 ℃, add extraction oil and SBS and begin to stir, stirring velocity is 4000～5000r/min, and optimum velocity is 4500～5000r/min; The whipping process temperature is 170～190 ℃, and optimum temps is 175～185 ℃.Churning time is 40～120min, is preferably 50～80min.
Deck joint filling material of the present invention is a basic raw material with pitch, extraction oil and SBS, and raw material type is few, is easy to produce and allotment.Wherein asphalt stock uses third diasphaltene (because the pitch with suitable Ic value with suitable Ic value, can improve the stability of asphalt system, for example can improve package stability), cooperate a small amount of oil and SBS of extracting out, can obtain the good packing material of use properties.This packing material has good springiness, and high temperature performance is good, advantages such as long service life.
Embodiment
Further specify the present invention by the following examples, these embodiment do not provide constraints to the present invention.
Embodiment 1
With the Ic value is that 0.25 third diasphaltene is heated to 130 ℃, the extraction oil that adds 10%SBS (molecular weight 160,000) and 6% (subtracts the extraction oil that the lubricant base process is produced in four line distillate solvent treatments, down together), stirring velocity 4500r/min, churning time 50min, 180 ℃ of preparation temperatures, mixture is uniformly dispersed, survey the deck joint filling material performance, see Table 1.
Embodiment 2
With the Ic value is that 0.20 third diasphaltene is heated to 130 ℃, adds the extraction oil of 9%SBS (molecular weight 160,000) and 9%, stirring velocity 4500r/min, churning time 50min, 180 ℃ of preparation temperatures, mixture is uniformly dispersed, survey the deck joint filling material performance, see Table 1.
Embodiment 3
With the Ic value is that 0.20 third diasphaltene is heated to 130 ℃, adds the extraction oil of 13%SBS (molecular weight 160,000) and 8%, stirring velocity 4500r/min, churning time 50min, 180 ℃ of preparation temperatures, mixture is uniformly dispersed, survey the deck joint filling material performance, see Table 1.
Embodiment 4
With the Ic value is that 0.15 third diasphaltene is heated to 130 ℃, add 9%SBS (molecular weight 160,000), 9% extraction oil and 0.12% inorganic stabilizers (sulphur), stirring velocity 4500r/min, churning time 50min, 180 ℃ of preparation temperatures, mixture is uniformly dispersed, and surveys the deck joint filling material performance, sees Table 1.
The performance of table Bridge 1 face joint filling material
| Project | Example 1 | Example 2 | Example 3 | Example 4 |
| 25 ℃ of penetration degree/0.1mm | 69 | 96 | 75 | 91 |
| Softening temperature/℃ | 90.8 | 105.3 | 112.3 | 107.8 |
| 5 ℃ of ductility/cm | 53 | 57 | 58 | 58 |
| 25 ℃ of recovery of elasticity, % | 99.2 | 99.9 | 99.9 | 99.9 |
| Brittle point/℃ | -20.5 | -26 | -30 | -28 |
| Sag/mm | 5 | 3 | 3 | 3 |
Claims (6)
1. a deck joint filling material contains: the de-oiled asphalt 70%～90% that propane deasphalting process obtains, lubex 6%～15%, styrene-butadiene-styrene block copolymer 4%～15% by weight; The colloid instability index of the de-oiled asphalt that described propane deasphalting process obtains is not higher than 0.25.
2. according to the described packing material of claim 1, it is characterized in that the de-oiled asphalt that described propane deasphalting process obtains is 75%～85%, lubex is 7%～11%, styrene-butadiene-styrene block copolymer 8%～14%.
3. according to claim 1 or 2 described packing materials, the colloid instability index that it is characterized in that the de-oiled asphalt that described propane deasphalting process obtains is 0.15～0.25.
4. according to claim 1 or 2 described packing materials, it is characterized in that adding in the packing material in linking agent, mineral filler and the plastic material one or several.
5. the preparation method of the described deck joint filling material of claim 1, process is as follows: the de-oiled asphalt that propane deasphalting process is obtained is heated to 100～200 ℃, adding lubex and styrene-butadiene-styrene block copolymer begins to stir, the whipping process temperature is 170～190 ℃, and churning time is 40～120min.
6. in accordance with the method for claim 5, it is characterized in that described pitch Heating temperature is 110～170 ℃, stirring velocity is 4000～5000r/min, and the whipping process temperature is 175～185 ℃, and churning time is 50～80min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101577853A CN101418126B (en) | 2007-10-26 | 2007-10-26 | Deck joint filling material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101577853A CN101418126B (en) | 2007-10-26 | 2007-10-26 | Deck joint filling material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101418126A CN101418126A (en) | 2009-04-29 |
| CN101418126B true CN101418126B (en) | 2011-09-21 |
Family
ID=40629136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101577853A Active CN101418126B (en) | 2007-10-26 | 2007-10-26 | Deck joint filling material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101418126B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103044930B (en) * | 2011-10-17 | 2016-03-30 | 中国石油化工股份有限公司 | A kind of aging-resistant filleting packing material and preparation method thereof |
| CN103044931B (en) * | 2011-10-17 | 2016-01-20 | 中国石油化工股份有限公司 | A kind of filleting packing material and preparation method thereof being easy to construct |
| CN102953345B (en) * | 2012-11-23 | 2015-08-26 | 中国路桥工程有限责任公司 | A kind of maintenance process of bridge |
| CN112415180B (en) * | 2020-12-10 | 2021-09-10 | 广西交科集团有限公司 | Method for selecting base asphalt for rubber asphalt based on ash correlation analysis |
| CN113897173A (en) * | 2021-10-27 | 2022-01-07 | 中国石油化工股份有限公司 | Normal-temperature engineering caulking glue and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1508188A (en) * | 2002-12-19 | 2004-06-30 | 中国石油化工股份有限公司 | Modified asphalt and preparing method thereof |
| CN1696203A (en) * | 2004-05-12 | 2005-11-16 | 辽宁石油化工大学 | Composite-complexation type regenerator for worn-out mixture of asphaltum and preparation method |
| CN101016465A (en) * | 2007-02-07 | 2007-08-15 | 广州路翔股份有限公司 | Process for preparing high viscosity modified asphalt |
-
2007
- 2007-10-26 CN CN2007101577853A patent/CN101418126B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1508188A (en) * | 2002-12-19 | 2004-06-30 | 中国石油化工股份有限公司 | Modified asphalt and preparing method thereof |
| CN1696203A (en) * | 2004-05-12 | 2005-11-16 | 辽宁石油化工大学 | Composite-complexation type regenerator for worn-out mixture of asphaltum and preparation method |
| CN101016465A (en) * | 2007-02-07 | 2007-08-15 | 广州路翔股份有限公司 | Process for preparing high viscosity modified asphalt |
Non-Patent Citations (1)
| Title |
|---|
| 王建林等.SBS改性沥青高温稳定性的研究.《交通世界》.2005,(第8期),全文. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101418126A (en) | 2009-04-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101265363B (en) | Waste and old rubber powder modifying asphalt and preparation method thereof | |
| CN102838874B (en) | Asphalt modifier, modified asphalt and asphalt mixture | |
| CN101418126B (en) | Deck joint filling material and preparation method thereof | |
| CN106633250B (en) | A kind of preparation method of high viscous warm-mixed asphalt modifying agent and modified pitch | |
| CN107698199B (en) | High-modulus asphalt mixture based on old pavement milling material and preparation method thereof | |
| CN107722653A (en) | A kind of modified asphalt mixture and preparation method thereof | |
| CN105236831A (en) | Aged-asphalt regeneration agent, regenerated asphalt mixture and preparation method of two | |
| CN101074321A (en) | Road-surface asphalt modified additive at normal temperature and its production | |
| CN107117871A (en) | The chopped asphalts of basalt fibre OGFC 13 of one kind incorporation | |
| KR101906757B1 (en) | Ascon composition having improved mechanical property and anti-aging property including polymer-modified asphalt composition | |
| CN109761541B (en) | Asphalt mixture for heavy-load traffic road surface and processing technology thereof | |
| CN103044931B (en) | A kind of filleting packing material and preparation method thereof being easy to construct | |
| CN103834184A (en) | High-modulus asphalt and preparation method thereof | |
| CN102040846A (en) | Oil-resistant asphalt pavement material and preparation method thereof | |
| CN102443239B (en) | Oil-resistant road asphalt modifier and preparation method thereof | |
| CN109534724A (en) | A kind of High Modulus Asphalt Mixture and preparation method thereof modified based on high ash content rock asphalt | |
| CN104559232A (en) | Chemically-modified hard asphalt and preparation method thereof | |
| CN102964854B (en) | Road asphalt modifier | |
| CN106751973A (en) | A kind of high temperature resistant environment-protective color asphalt | |
| CN102952293A (en) | Compound rubber powder modifying agent as well as preparation method and application method thereof | |
| CN103360774A (en) | Asphaltized rubber modified asphalt and preparation method thereof | |
| CN112430012A (en) | Basalt composite fiber and asphalt mixture containing basalt composite fiber | |
| CN103044930B (en) | A kind of aging-resistant filleting packing material and preparation method thereof | |
| CN101348350A (en) | Waste rubber powder composite modified asphalt and preparation thereof | |
| CN114716839A (en) | Modified asphalt for heavy-duty pavement, modified asphalt mixture and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |