CN108047734A - A kind of lake asphalt complex biological asphalt modification pitch and preparation method thereof - Google Patents
A kind of lake asphalt complex biological asphalt modification pitch and preparation method thereof Download PDFInfo
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- CN108047734A CN108047734A CN201711462132.6A CN201711462132A CN108047734A CN 108047734 A CN108047734 A CN 108047734A CN 201711462132 A CN201711462132 A CN 201711462132A CN 108047734 A CN108047734 A CN 108047734A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The present invention provides a kind of lake asphalt complex biological asphalt modification pitches, are made of the component of following parts by weight：50~80 parts of matrix pitch, 10~25 parts of Biological asphalt, 10~25 parts of lake asphalt.The present invention also provides a kind of preparation methods of lake asphalt complex biological asphalt modification pitch.The present invention is modified matrix pitch as modifying agent by using lake asphalt and Biological asphalt, the incorporation of Biological asphalt improves that matrix asphalt is antifatigue, cold cracking property, the incorporation of lake asphalt improves the high-temperature behavior reduced by Biological asphalt incorporation, so as to which Comprehensive improves matrix pitch high temperature, low temperature, endurance quality.Performance of modified bitumen protrudes, and has good Technological Economy prospect.A kind of lake asphalt complex biological asphalt modification asphalt production process proposed by the present invention is simple and practicable, convenient for promoting.
Description
Technical field
The present invention relates to modified asphalt technology fields, and in particular to a kind of lake asphalt complex biological asphalt modification pitch and its
Preparation method.
Background technology
With the fast development of highway in China construction, bituminous paving has been obtained extensively in China with its superior function
Using the consumption figure of pitch increases substantially in recent years.Bitumen for road use is largely the asphalt refined in crude oil at present, so
And oil is non-renewable rare resources, due to exhaustive exploitation and use, petroleum resources are increasingly exhausted.Therefore, there is an urgent need for seek
Look for a kind of recyclable materials with excellent pavement performance, with mitigate asphalt production and utilize during to petroleum resources according to
Rely.
Biological asphalt is that a kind of biological material is made by certain physical and chemical process processing with cementitious matter performance
The material similar to asphalt.With renewable, cleaning, the performances such as economic and environment-friendly, in the case where meeting code requirement,
It is added in Biological asphalt as modifying agent among matrix asphalt, the dosage of asphalt can be greatly reduced, this is to saving
Resource and environmental protection are significant.However, Biological asphalt softening point is low, viscosity is small, there are technologies in terms of high-temperature stability
Defect.
Lake asphalt is that oil is constantly emerged from the earth's crust, is present in natural lake, through precipitating for a long time, changing, hardening generation
Bitumen.Due to natural environment long-term co-existence, so lake asphalt high-temperature behavior is highly stable, as modifying agent
It mixes in pitch, the high-temperature behavior of pitch can be improved.
The content of the invention
One of the objects of the present invention is to provide a kind of lake asphalt complex biological asphalt modification pitches, are improved using lake asphalt
The high-temperature stability of Biological asphalt modified pitch makes modified pitch have excellent pavement performance.
What the present invention was realized in：
A kind of lake asphalt complex biological asphalt modification pitch, is made of the component of following parts by weight：Matrix pitch 50~80
Part, 10~25 parts of Biological asphalt, 10~25 parts of lake asphalt.
Further scheme is：
The lake asphalt is Trinidad Lake Asphalt.
Lake asphalt has good compatibility with matrix pitch.It is interacted by lake asphalt and matrix pitch, asphalt adhesive
Group's polarity is enhanced, and colloform texture is caused to be changed into molten gel-type and gel-type from colloidal sol type, is conducive to improve asphalt high-temperature
Performance.
Further scheme is：
The Biological asphalt for remaining garbage grease after refining soybean oil using physical and chemical process such as distillation, oxidations at
Reason, the waste material finally obtained, i.e. soybean oil Biological asphalt.
Its antifatigue, cold cracking property can be improved in Biological asphalt doped matrix asphalt, but high-temperature behavior is bad.
The present invention by the cooperation of lake asphalt and Biological asphalt, so as to improve comprehensively the antifatigue of matrix pitch, cold cracking property and
High-temperature behavior.
It is another object of the present invention to provide a kind of preparation methods of lake asphalt complex biological asphalt modification pitch.
What this purpose of the present invention was specifically realized in：
A kind of preparation method of lake asphalt complex biological asphalt modification pitch, includes the following steps：
(1) block lake asphalt is added in into grinding and sieving in pulverizer, lake asphalt modifying agent is made；
(2) 30~60min is sheared by Biological asphalt heating water bath and with the speed of 3500~5000r/min, biology is made
Asphalt modifier；
(3) lake asphalt modifying agent, Biological asphalt modifying agent and matrix pitch are pressed into predetermined mixture proportion 175~190
It mixes, is then placed in 175~190 DEG C of baking oven at DEG C, taken out after 50~80min of development；
(4) mixture obtained by step (3) is used into high speed shear instrument within the temperature range of 175~190 DEG C with 3500~
The speed of 5000r/min shears 50~80min, until pitch is uniform and stable, when being in that surface is smooth after cooling, modified drip is made
It is blue or green.
Further scheme is：
Sieving refers to that the lake asphalt after crushing crosses 100~170 mesh sieves in step (1).
Further scheme is：
Heating water bath, which refers to Biological asphalt being placed under 90 DEG C of constant temperature, in step (2) carries out heating water bath.
Using above-mentioned technical proposal, the accessible advantageous effect of the present invention includes：
(1) present invention is modified matrix pitch as modifying agent by using lake asphalt and Biological asphalt, biology drip
Blue or green incorporation improves that matrix asphalt is antifatigue, cold cracking property, and the incorporation of lake asphalt is improved because Biological asphalt is mixed
Enter the high-temperature behavior of reduction, so as to which Comprehensive improves matrix pitch high temperature, low temperature, endurance quality.Performance of modified bitumen protrudes,
With good Technological Economy prospect.
(2) a kind of lake asphalt complex biological asphalt modification asphalt production process proposed by the present invention is simple and practicable, convenient for pushing away
Extensively.The Properties of Modified Asphalt that the preparation method obtains is stable, uniform in material, and modifying agent is excellent to the modified effect of matrix pitch
It is elegant.
(3) modified pitch proposed by the present invention is of low cost, and preparation process is simple, with good economic efficiency.Soybean
Oily Biological asphalt is garbage grease remaining after refining soybean oil, and raw material sources are extensive, and Biological asphalt property is homogeneous and stablizes.This
Outside, Biological asphalt reduces from discarded biological material, the present invention in recycling environment while discarded object
Road surface industry to environmental protection, economizes on resources to the dependence of asphalt, realizes that sustainable development is of great significance.
Specific embodiment
With reference to specific embodiment, the present invention is further illustrated.
Embodiment 1
A kind of lake asphalt complex biological asphalt modification pitch, ingredient is by weight：80 parts of matrix pitch, Biological asphalt
10 parts, 10 parts of lake asphalt.Selected lake asphalt is Trinidad Lake Asphalt, and Biological asphalt is soybean oil Biological asphalt.
Soybean oil Biological asphalt used in the present embodiment and following other embodiments is commercial product, and the source purchased from Suzhou good fortune is given birth to
Object Science and Technology Ltd..
The preparation method of the lake asphalt complex biological asphalt modification pitch is as follows：
(1) block lake asphalt is added in pulverizer and smashes it through sieved 100 mesh sieve disk, lake asphalt modifying agent is made.
(2) 30min is sheared by Biological asphalt heating water bath and with the speed of 3500r/min, Biological asphalt modifying agent is made.
(3) it is lake asphalt modifying agent, Biological asphalt modifying agent and matrix pitch is mixed at 175 DEG C by predetermined mixture proportion
It closes, is then placed in 175 DEG C of baking oven, taken out after development 50min,
(4) use high speed shear instrument within the temperature range of 175 DEG C with 3500r/min's in mixture obtained by step (3)
Speed shears 50min, until pitch is uniform and stable, when being in that surface is smooth after cooling, modified pitch is made.
Embodiment 2
A kind of lake asphalt complex biological asphalt modification pitch, ingredient is by weight：70 parts of matrix pitch, Biological asphalt
15 parts, 15 parts of lake asphalt.Selected lake asphalt is Trinidad Lake Asphalt, and Biological asphalt is soybean oil Biological asphalt.
The preparation method of the lake asphalt complex biological asphalt modification pitch is as follows：
(1) block lake asphalt is added in pulverizer and smashes it through sieved 120 mesh sieve disk, lake asphalt modifying agent is made.
(2) 40min is sheared by Biological asphalt heating water bath and with the speed of 4000r/min, Biological asphalt modifying agent is made.
(3) it is lake asphalt modifying agent, Biological asphalt modifying agent and matrix pitch is mixed at 180 DEG C by predetermined mixture proportion
It closes, is then placed in 180 DEG C of baking oven, taken out after development 60min,
(4) use high speed shear instrument within the temperature range of 180 DEG C with 4000r/min's in mixture obtained by step (3)
Speed shears 60min, until pitch is uniform and stable, when being in that surface is smooth after cooling, modified pitch is made.
Embodiment 3
A kind of lake asphalt complex biological asphalt modification pitch, ingredient is by weight：60 parts of matrix pitch, Biological asphalt
20 parts, 20 parts of lake asphalt.Selected lake asphalt is Trinidad Lake Asphalt, and Biological asphalt is soybean oil Biological asphalt.
The preparation method of the lake asphalt complex biological asphalt modification pitch is as follows：
(1) block lake asphalt is added in pulverizer and smashes it through sieved 140 mesh sieve disk, lake asphalt modifying agent is made.
(2) 50min is sheared by Biological asphalt heating water bath and with the speed of 4500r/min, Biological asphalt modifying agent is made.
(3) it is lake asphalt modifying agent, Biological asphalt modifying agent and matrix pitch is mixed at 185 DEG C by predetermined mixture proportion
It closes, is then placed in 185 DEG C of baking oven, taken out after development 70min,
(4) use high speed shear instrument within the temperature range of 185 DEG C with 4500r/min's in mixture obtained by step (3)
Speed shears 70min, until pitch is uniform and stable, when being in that surface is smooth after cooling, modified pitch is made.
Embodiment 4
A kind of lake asphalt complex biological asphalt modification pitch, ingredient is by weight：50 parts of matrix pitch, Biological asphalt
25 parts, 25 parts of lake asphalt.Selected lake asphalt is Trinidad Lake Asphalt, and Biological asphalt is soybean oil Biological asphalt.
The preparation method of the lake asphalt complex biological asphalt modification pitch is as follows：
(1) block lake asphalt is added in pulverizer and smashes it through sieved 170 mesh sieve disk, lake asphalt modifying agent is made.
(2) 60min is sheared by Biological asphalt heating water bath and with the speed of 5000r/min, Biological asphalt modifying agent is made.
(3) it is lake asphalt modifying agent, Biological asphalt modifying agent and matrix pitch is mixed at 190 DEG C by predetermined mixture proportion
It closes, is then placed in 190 DEG C of baking oven, taken out after development 80min,
(4) use high speed shear instrument within the temperature range of 190 DEG C with 5000r/min's in mixture obtained by step (3)
Speed shears 80min, until pitch is uniform and stable, when being in that surface is smooth after cooling, modified pitch is made.
For the performance of modified pitch in the verification present invention, using matrix pitch as control group, the implementation of the invention prepared
Example is experimental group, carries out the experiment of relevant item, result of the test is as shown in the table：
Equivalent softening point in upper table, equivalent brittle point, penetration ratio, ageing index according to《Highway engineering pitch and pitch mix
Close material testing regulations》Computational methods described in (JTG E20-2011) calculate, asphalt grade (PG) high temperature, low temperature series classification temperature
Spend basis《Measure the series classification temperature of grading performance (PG) asphalt binder and the standard practice instructions of series classification》
Computational methods described in (ASTMD7643-10) calculate.
Equivalent softening point and asphalt grade (PG) high temperature series classification temperature are relation degree analysis of high-temperature performance indexes of asphalt in upper table；Equivalent
Softening point and asphalt grade (PG) high temperature series classification temperature are higher, and high temperature performance of asphalt is better.Equivalent brittle point and asphalt grade
(PG) low temperature series classification temperature is pitch cryogenic property index；Equivalent brittle point and asphalt grade (PG) low temperature series classification temperature
Lower, pitch cryogenic property is better.When ageing index is asphalt durability energy index to needle penetration；Penetration ratio is higher, aging
Index is more low, and asphalt durability can be better.
From data in upper table, prepared modified pitch has compared to matrix pitch in 1~embodiment of embodiment 4
Better high temperature, low temperature, endurance quality, and preparation process is simple, the prices of raw materials are cheap, can reduce to petroleum resources according to
Rely, improve environment, protecting ecology, have broad application prospects.
Although reference be made herein to invention has been described for explanatory embodiment of the invention, and above-described embodiment is only this hair
Bright preferable embodiment, embodiments of the present invention are simultaneously not restricted to the described embodiments, it should be appreciated that people in the art
Member can be designed that a lot of other modifications and embodiment, these modifications and embodiment will fall in principle disclosed in the present application
Within scope and spirit.
Claims (6)
1. a kind of lake asphalt complex biological asphalt modification pitch, it is characterised in that be made of the component of following parts by weight：Matrix drips
It is 50~80 parts blue or green, 10~25 parts of Biological asphalt, 10~25 parts of lake asphalt.
2. lake asphalt complex biological asphalt modification pitch according to claim 1, it is characterised in that：
The lake asphalt is Trinidad Lake Asphalt.
3. lake asphalt complex biological asphalt modification pitch according to claim 1, it is characterised in that：
The Biological asphalt is soybean oil Biological asphalt.
4. the preparation method of lake asphalt complex biological asphalt modification pitch described in claims 1 to 3, it is characterised in that including as follows
Step：
（1）Block lake asphalt is added in into grinding and sieving in pulverizer, lake asphalt modifying agent is made；
（2）30~60min is sheared by Biological asphalt heating water bath and with the speed of 3500~5000r/min, Biological asphalt is made
Modifying agent；
（3）Lake asphalt modifying agent, Biological asphalt modifying agent and matrix pitch are pressed into predetermined mixture proportion at 175~190 DEG C
Mixing, is then placed in 175~190 DEG C of baking oven, is taken out after 50~80min of development；
（4）By step（3）Gained mixture uses high speed shear instrument within the temperature range of 175~190 DEG C with 3500~
The speed of 5000r/min shears 50~80min, until pitch is uniform and stable, when being in that surface is smooth after cooling, modified drip is made
It is blue or green.
5. the preparation method of lake asphalt complex biological asphalt modification pitch according to claim 4, it is characterised in that：
Step（1）Middle sieving refers to that the lake asphalt after crushing crosses 100~170 mesh sieves.
6. the preparation method of lake asphalt complex biological asphalt modification pitch according to claim 4, it is characterised in that：
Step（2）Middle heating water bath, which refers to Biological asphalt being placed under 90 DEG C of constant temperature, carries out heating water bath.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711462132.6A CN108047734A (en) | 2017-12-28 | 2017-12-28 | A kind of lake asphalt complex biological asphalt modification pitch and preparation method thereof |
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| CN201711462132.6A CN108047734A (en) | 2017-12-28 | 2017-12-28 | A kind of lake asphalt complex biological asphalt modification pitch and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113861709A (en) * | 2021-10-20 | 2021-12-31 | 中电建冀交高速公路投资发展有限公司 | Lake asphalt compound biological asphalt modified asphalt and preparation method thereof |
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|---|---|---|---|---|
| CN101445659A (en) * | 2008-11-05 | 2009-06-03 | 河北省通力沥青技术开发有限公司 | Modified asphalt applying lake asphalt and preparation method thereof |
| CN104559262A (en) * | 2015-01-14 | 2015-04-29 | 长安大学 | Energy-saving environment-friendly asphalt and preparation method thereof |
-
2017
- 2017-12-28 CN CN201711462132.6A patent/CN108047734A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101445659A (en) * | 2008-11-05 | 2009-06-03 | 河北省通力沥青技术开发有限公司 | Modified asphalt applying lake asphalt and preparation method thereof |
| CN104559262A (en) * | 2015-01-14 | 2015-04-29 | 长安大学 | Energy-saving environment-friendly asphalt and preparation method thereof |
Non-Patent Citations (2)
| Title |
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| 卢强 等: "利用生物废油改性沥青及其低温路用性能研究", 《公路工程》 * |
| 曾梦澜 等: "蓖麻油生物沥青调和沥青混合料使用性能研究", 《湖南大学学报（自然科学版）》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113861709A (en) * | 2021-10-20 | 2021-12-31 | 中电建冀交高速公路投资发展有限公司 | Lake asphalt compound biological asphalt modified asphalt and preparation method thereof |
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Application publication date: 20180518 |
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