CN109705415A - A kind of rubber modified asphalt - Google Patents
A kind of rubber modified asphalt Download PDFInfo
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- CN109705415A CN109705415A CN201811553684.2A CN201811553684A CN109705415A CN 109705415 A CN109705415 A CN 109705415A CN 201811553684 A CN201811553684 A CN 201811553684A CN 109705415 A CN109705415 A CN 109705415A
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Abstract
The present invention relates to a kind of rubber modified asphalt, raw material score meter by weight, including 22 parts to 33 parts matrix pitches, 2 parts to 5 parts interface stability agent, 40 parts to 60 parts rubber powders；Rubber modified asphalt rubber powder is formulated in the steps below: the first step, matrix pitch is heated to 145 DEG C to 165 DEG C and is stirred evenly its thermally equivalent is made to obtain primary stirring liquid；Primary stirring liquid is rapidly heated to 175 DEG C to 190 DEG C that the desired amount of rubber powder is added and obtains secondary agitation liquid after mixing evenly and be stirred by second step, and mixing time is 45 seconds to 60 seconds；Secondary agitation liquid is pumped into grind in high-speed stirred kettle again and stir by third step, obtains mixture, and mixing time is 1 minute to 2 minutes；4th step, addition interface stability agent carries out developing and obtaining after mixing evenly rubber modified asphalt after development tank is added in triple mixing liquid, and mixing time is 45 minutes to 60 minutes.The present invention can effectively solve existing rubber modified asphalt workability, viscosity and the higher problem of uniformity requirement in implementation process.
Description
Technical field
The present invention relates to ground surface material technical fields, are a kind of rubber modified asphalts.
Background technique
In recent years, with the rapid development of economy, the first every trade of the basic industries such as highway, bridge, tunnel and economic development
Industry is developed rapidly, at the same time highway in the long-term use, due to the repeated action of vehicular load, the change of temperature
Change, Frozen-thawed cycled the effects of under, various forms of destructions such as ground surface material crack, track occurs, embraces, wherein highway
Damaged degree is then even more serious, extends ground surface material service life, improves road quality and benefit, become Expressway Development into
The huge challenge faced in journey.Therefore, for the research of ground surface material also increasingly by the concern of domestic and foreign scholars, due to
The asphalt that rubber modified asphalt is formed has preferable high and low temperature performance.Therefore, many experts, scholar throw sight
To ground surface material rubber modified asphalt technical field of research, technological core be using waste rubber powder as modifying agent come
The performance for improving pitch, while for the hot-mix asphalt mixture of rubber modified asphalt, having more has excellent cracking resistance, anti-heavy
It carries, durable and anti-acoustic capability.However, previous rubber asphalt technology is mostly based in situ method, in implementation process workability,
Viscosity and homogeneity question are also the restraining factors for hindering it further to develop always.It mainly passes through certain production work
Skill will be added in pitch by the rubber powder of waste tire and rubber product preparation, be formed a kind of using rubber powder as modifying agent
Modified pitch can be widely applied to asphalt, stress absorbing layer etc..Rubber modified asphalt is not only only in terms of environmental protection
A flag is set, and there is excellent stability, durability and antiskid noise reduction capability, thus it is strong for workability, modest viscosity
It is very important for the research of rubber modified asphalt rubber powder.
Summary of the invention
The present invention provides a kind of rubber modified asphalts, overcome the defects of the prior art, and workability is strong, viscosity
It is moderate, it can effectively solve existing rubber modified asphalt workability, viscosity and the higher problem of uniformity requirement in implementation process.
The object of the present invention is achieved like this: a kind of rubber modified asphalt, raw material score meter by weight, and raw material includes 22
Part to 33 parts of matrix pitch, 2 parts to 5 parts of interface stability agent, 40 parts to 60 parts of rubber powder；Rubber modified asphalt rubber powder is mixed
Obtain in the steps below with formula: the desired amount of matrix pitch is heated to 145 DEG C to 165 DEG C and stirred evenly to make by the first step
Its thermally equivalent obtains primary stirring liquid；Primary stirring liquid is rapidly heated to needed for addition after 175 DEG C to 190 DEG C by second step
The rubber powder to be measured simultaneously obtains secondary agitation liquid after mixing evenly and stirs, and mixing the time is 45 seconds to 60 seconds；Third step, by secondary agitation
Liquid, which is pumped into again in high-speed stirred kettle, is fully ground stirring, the mixture uniformly refined, and mixing time is 1 minute to 2 minutes；
4th step, the interface stability agent that triple mixing mixture is added to addition requirement after developing tank are developed and are stirred evenly
After obtain rubber modified asphalt, mixing time is 45 minutes to 60 minutes.
Here is further optimization or/and improvement of one of the above technical solutions of the invention:
Above-mentioned matrix pitch can be 90# matrix pitch.
Above-mentioned rubber powder may include that 40 parts to 60 parts of rubber powder is 40 mesh rubber powders.
Above-mentioned rubber powder is the rubber powders such as waste tire, rubber product.
In the above-mentioned first step, second step and the 4th step, mixing speed can be 40r/min to 50r/min.
In above-mentioned third step, mixing speed can be 70r/min to 90r/min.
Technical solution of the present invention second is that being realized by following measures: a kind of preparation side of rubber modified asphalt
Method carries out in the steps below: the first step, and the desired amount of matrix pitch is heated to 145 DEG C to 165 DEG C and is stirred evenly to make it
It is even heated；Primary stirring liquid is rapidly heated to the rubber powder of addition requirement and stirring after 175 DEG C to 190 DEG C by second step
It obtains secondary agitation liquid after uniformly to stir, mixing the time is 45 seconds to 60 seconds；Secondary agitation liquid is pumped into high-speed stirred kettle by third step again
In be fully ground stirring, the mixture uniformly refined, mixing time be 1 minute to 2 minutes；4th step, by triple mixing
Mixture, which is added after development tank, to be added the interface stability agent of requirement and carries out developing and obtain after mixing evenly a kind of rubber changing
Property pitch, mixing time be 45 minutes to 60 minutes.
Here is further optimization or/and improvement of the technical scheme ii of the invention:
Above-mentioned matrix pitch can be 90# matrix pitch.
Above-mentioned rubber powder may include that 40 parts to 60 parts of rubber powder is 40 mesh rubber powders.
Above-mentioned rubber powder is the rubber powders such as waste tire, rubber product.
In the above-mentioned first step, second step and the 4th step, mixing speed can be 40r/min to 50r/min.
In above-mentioned third step, mixing speed can be 70r/min to 90r/min.
Rubber modified asphalt of the present invention had both had the high-temperature stable of the formed asphalt of General Purpose Rubber pitch
Property and low-temperature cracking-resistance, and have workability in work progress strong, modest viscosity has stronger practicability, can be improved highway and applies
Working hour construction production efficiency, is with a wide range of applications.
Specific embodiment
A kind of rubber modified asphalt, raw material score meter by weight, raw material include 22 parts to 33 parts matrix pitch, 2 parts to 5
The interface stability agent of part, 40 parts to 60 parts of rubber powder, rubber modified asphalt rubber powder is mixed to be obtained in the steps below with formula: first
The desired amount of matrix pitch is heated to 145 DEG C to 165 DEG C and stirred evenly that its thermally equivalent is made to obtain primary stirring liquid by step；
Primary stirring liquid is rapidly heated to the rubber powder of addition requirement after 175 DEG C to 190 DEG C and obtains after mixing evenly by second step
It is stirred to secondary agitation liquid, mixing the time is 45 seconds to 60 seconds；Secondary agitation liquid is pumped into high-speed stirred kettle again and sufficiently grinds by third step
Mill stirring, the mixture uniformly refined, mixing time are 1 minute to 2 minutes；4th step adds triple mixing mixture
The interface stability agent for entering to develop to be added after tank requirement develop and obtain after mixing evenly rubber modified asphalt, when stirring
Between be 45 minutes to 60 minutes.22 parts to 33 parts of matrix pitch is 90# matrix pitch.40 parts to 60 parts of rubber powder is 40 mesh
Rubber powder.Rubber powder is the rubber powders such as waste tire, rubber product.In the first step, second step and the 4th step, mixing speed is
40r/min to 50r/min.In third step, mixing speed is 70r/min to 90r/min.
The present invention will be further described below with reference to examples:
Embodiment 1, a kind of rubber modified asphalt raw material score meter by weight, raw material score meter by weight, raw material include 22 parts extremely
(for the rule of origin in existing product, main purchase is in Jiangyin An Qianggao for 33 parts of matrix pitch, 2 parts to 5 parts of interface stability agent
Abrasion-resistant powder limited rubber company), 40 parts to 60 parts of rubber powder, rubber modified asphalt rubber powder mixes with formula in the steps below
Arrive: the desired amount of matrix pitch is heated to 145 DEG C to 165 DEG C and stirred evenly to make its thermally equivalent by the first step；Second step,
Primary stirring liquid is rapidly heated to the rubber powder of addition requirement after 175 DEG C to 190 DEG C and is obtained after mixing evenly secondary
Stirring liquid stirs, and mixing the time is 45 seconds to 60 seconds；Secondary agitation liquid is pumped into be fully ground in high-speed stirred kettle again and stir by third step
It mixes, the mixture uniformly refined, mixing time is 1 minute to 2 minutes；Triple mixing mixture is added and sends out by the 4th step
It educates and the interface stability agent of requirement is added after tank develop and obtain rubber modified asphalt after mixing evenly, mixing time is
45 minutes to 60 minutes.
Embodiment 2, a kind of rubber modified asphalt raw material score meter by weight, raw material score meter by weight, raw material include 22
Part or the interface stability agent of 33 parts of matrix pitch, 2 parts or 5 parts, 40 parts or 60 parts rubber powder, workability is strong, modest viscosity
Rubber modified asphalt rubber powder mix with formula obtain in the steps below: the desired amount of matrix pitch is heated to 145 DEG C by the first step
To 165 DEG C and stirs evenly and make its thermally equivalent；Primary stirring liquid is rapidly heated to being added after 175 DEG C to 190 DEG C by second step
The rubber powder of requirement simultaneously obtains secondary agitation liquid after mixing evenly and stirs, and mixing the time is 45 seconds to 60 seconds；Third step, will be secondary
Stirring liquid, which is pumped into again in high-speed stirred kettle, is fully ground stirring, and the mixture uniformly refined, mixing time is 1 minute to 2
Minute；4th step, the interface stability agent that triple mixing mixture is added to addition requirement after developing tank are developed and are stirred
A kind of rubber modified asphalt is obtained after mixing uniformly, mixing time is 45 minutes to 60 minutes.
Embodiment 3, as the optimization of above-described embodiment, matrix pitch is 90# matrix pitch.
Embodiment 4, the difference is that, rubber powder may include that 40 parts to 60 parts of rubber powder is 40 with above-described embodiment
Mesh rubber powder and rubber powder are the rubber powders such as waste tire, rubber product, can be good at merging with matrix pitch, while making waste and old
Rubber obtains recycling the reduction wasting of resources.
Embodiment 5, with above-described embodiment the difference is that, in the first step, second step and the 4th step, mixing speed
It is 40r/min to 50r/min.
Embodiment 6, with above-described embodiment the difference is that, in the third step, mixing speed be 70r/min extremely
90r/min。
Embodiment 7, place unlike the embodiments above are: rubber modified asphalt raw material score meter by weight, raw material
Score meter by weight, raw material include 22 parts of matrix pitch, 2 parts of interface stability agent, 40 parts of rubber powder, rubber modified asphalt
Rubber powder is mixed to be obtained in the steps below with formula: the desired amount of matrix pitch is heated to 145 DEG C and stirred evenly to make it by the first step
Thermally equivalent；Primary stirring liquid is rapidly heated to the rubber powder of addition requirement after 175 DEG C to 190 DEG C and is stirred by second step
It obtains secondary agitation liquid after mixing uniformly to stir, mixing the time is 45 seconds；Secondary agitation liquid is pumped into high-speed stirred kettle again and fills by third step
Divide grinding stirring, the mixture uniformly refined, mixing time is 1 minute；Triple mixing mixture is added and sends out by the 4th step
It educates and the interface stability agent of requirement is added after tank develop and obtain rubber modified asphalt after mixing evenly, mixing time is
45 minutes.
The embodiment obtain rubber modified asphalt performance (softening point/DEG C, needle penetration/0.1mm, ductility (5 DEG C)/cm,
Rotary viscosity (5 DEG C)/Pa.S, modulus of shearing/MPa) with the performance of General Purpose Rubber modified pitch (softening point/DEG C, needle penetration/
0.1mm, ductility (5 DEG C)/cm, rotary viscosity (5 DEG C)/Pa.S, modulus of shearing/MPa) it compares, correlation data such as 1 institute of table
Show.
Embodiment 8, place unlike the embodiments above are: rubber modified asphalt raw material score meter by weight, raw material
Score meter by weight, raw material include 33 parts of matrix pitch, 5 parts of interface stability agent, 60 parts of rubber powder, rubber modified asphalt
Rubber powder is mixed to be obtained in the steps below with formula: the desired amount of matrix pitch is heated to 165 DEG C and stirred evenly to make it by the first step
Thermally equivalent；Primary stirring liquid is rapidly heated to the rubber powder that requirement is added after 190 DEG C and after mixing evenly by second step
It obtains secondary agitation liquid to stir, mixing the time is 60 seconds；Secondary agitation liquid is pumped into be fully ground in high-speed stirred kettle again and stir by third step
It mixes, the mixture uniformly refined, mixing time is 2 minutes；4th step adds after development tank is added in triple mixing mixture
The interface stability agent for entering requirement carries out developing and obtaining after mixing evenly a kind of rubber modified asphalt, and mixing time is 60 points
Clock.
The embodiment obtain rubber modified asphalt performance (softening point/DEG C, needle penetration/0.1mm, ductility (5 DEG C)/cm,
Rotary viscosity (5 DEG C)/Pa.S, modulus of shearing/MPa) with the performance of General Purpose Rubber modified pitch (softening point/DEG C, needle penetration/
0.1mm, ductility (5 DEG C)/cm, rotary viscosity (5 DEG C)/Pa.S, modulus of shearing/MPa) it compares, correlation data such as 2 institute of table
Show.
To the performance of the rubber modified asphalt obtained according to that above embodiment of the present invention (softening point/DEG C, needle penetration/
0.1mm, ductility (5 DEG C)/cm, rotary viscosity (5 DEG C)/Pa.S, modulus of shearing/MPa) with the performance of General Purpose Rubber modified pitch
(softening point/DEG C, needle penetration/0.1mm, ductility (5 DEG C)/cm, rotary viscosity (5 DEG C)/Pa.S, modulus of shearing/MPa) carries out pair
Than correlation data is as shown in table 3.
As shown in Table 3, the rotary viscosity of rubber modified asphalt of the present invention is less than the rotation of General Purpose Rubber modified pitch
Turn viscosity, thus, it is possible to shorten the construction time, improves the efficiency of construction, the needle penetration of rubber modified asphalt of the present invention
Higher than the needle penetration of General Purpose Rubber modified pitch, illustrate that rubber modified asphalt of the present invention has better mobility, just
It is produced in construction, the modulus of shearing of rubber modified asphalt of the present invention is greater than the modulus of shearing of plain asphalt, and this hair
Thus the mobility of the bright rubber modified asphalt illustrates modified rubber of the present invention close to the mobility of plain asphalt
Pitch had not only had the mobility of plain asphalt, but also had the advantages that rotary viscosity is small and needle penetration is big, illustrated of the present invention
Rubber modified asphalt has stronger practicability, is with a wide range of applications.
In conclusion rubber modified asphalt of the present invention had not only had the mobility of plain asphalt, but also have rotation viscous
The small and big advantage of needle penetration is spent, the production efficiency of site operation is improved, simplifies construction technology, illustrate of the present invention
Rubber modified asphalt has stronger practicability, is with a wide range of applications.
The above technical features constitute embodiments of the present invention, can basis with stronger adaptability and implementation result
Actual needs increases and decreases non-essential technical characteristic, to meet the needs of different situations.
Table 1
| Softening point/DEG C | Ductility (5 DEG C)/cm | Rotary viscosity (5 DEG C)/Pa.S | Modulus of shearing/MPa | |
| The present invention | 70-110 | 26.5 | 6.4 | ﹤ 4.5 |
| General Purpose Rubber modified pitch | 90-120 | — | — | — |
| Plain asphalt | 70-90 | 25.0~52.5 | 3.5~7.5 | ﹤ 5 |
Claims (6)
1. a kind of rubber modified asphalt, it is characterised in that: raw material score meter by weight, raw material include 22 parts to 33 parts of matrix drip
Blueness, 2 parts to 5 parts of interface stability agent, 40 parts to 60 parts of rubber powder；Rubber modified asphalt rubber powder is mixed with formula in the steps below
Obtain: the desired amount of matrix pitch is heated to 145 DEG C to 165 DEG C and stirred evenly that its thermally equivalent is made to obtain one by the first step
Secondary stirring liquid；Primary stirring liquid is rapidly heated to the rubber powder of addition requirement after 175 DEG C to 190 DEG C and is stirred by second step
It obtains secondary agitation liquid after mixing uniformly to stir, mixing the time is 45 seconds to 60 seconds；Secondary agitation liquid is pumped into high-speed stirred by third step again
Stirring is fully ground in kettle, the mixture uniformly refined, mixing time is 1 minute to 2 minutes；4th step will be stirred three times
Mix mixture be added development tank after be added requirement interface stability agent carry out develop and obtain modified rubber after mixing evenly
Pitch, mixing time are 45 minutes to 60 minutes.
2. a kind of rubber modified asphalt according to claim 1, it is characterised in that: 22 parts to 33 parts of matrix pitch is
90# matrix pitch.
3. a kind of rubber modified asphalt according to claim 1, it is characterised in that: 40 parts to 60 parts of rubber powder is 40 mesh
Rubber powder.
4. a kind of rubber modified asphalt according to claim 1, it is characterised in that: rubber powder is waste tire, rubber system
The rubber powders such as product.
5. a kind of rubber modified asphalt according to claim 1, it is characterised in that: in the first step, second step and the 4th step,
Mixing speed is 40r/min to 50r/min.
6. a kind of rubber modified asphalt according to claim 1, feature exist: in third step, mixing speed 70r/min
To 90r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811553684.2A CN109705415A (en) | 2018-12-19 | 2018-12-19 | A kind of rubber modified asphalt |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811553684.2A CN109705415A (en) | 2018-12-19 | 2018-12-19 | A kind of rubber modified asphalt |
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| Publication Number | Publication Date |
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| CN109705415A true CN109705415A (en) | 2019-05-03 |
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| CN201811553684.2A Pending CN109705415A (en) | 2018-12-19 | 2018-12-19 | A kind of rubber modified asphalt |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112409807A (en) * | 2020-11-24 | 2021-02-26 | 北京路德永泰环保科技有限公司 | Rubber asphalt with high storage stability and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831188A (en) * | 2010-05-13 | 2010-09-15 | 上海群康沥青科技有限公司 | Modified asphalt composition with high content of rubber powder and preparation and application thereof |
| CN103589176A (en) * | 2013-11-25 | 2014-02-19 | 中海沥青（泰州）有限责任公司 | High-storage stability rubber powder modified asphalt and preparation method thereof |
| CN105131622A (en) * | 2015-09-30 | 2015-12-09 | 河北伦特石油化工有限公司 | Rubber powder modified asphalt and production method thereof |
| CN108165031A (en) * | 2017-11-30 | 2018-06-15 | 青海弘川新源实业股份有限公司 | A kind of production technology of rubber powder modified asphalt |
-
2018
- 2018-12-19 CN CN201811553684.2A patent/CN109705415A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831188A (en) * | 2010-05-13 | 2010-09-15 | 上海群康沥青科技有限公司 | Modified asphalt composition with high content of rubber powder and preparation and application thereof |
| CN103589176A (en) * | 2013-11-25 | 2014-02-19 | 中海沥青（泰州）有限责任公司 | High-storage stability rubber powder modified asphalt and preparation method thereof |
| CN105131622A (en) * | 2015-09-30 | 2015-12-09 | 河北伦特石油化工有限公司 | Rubber powder modified asphalt and production method thereof |
| CN108165031A (en) * | 2017-11-30 | 2018-06-15 | 青海弘川新源实业股份有限公司 | A kind of production technology of rubber powder modified asphalt |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112409807A (en) * | 2020-11-24 | 2021-02-26 | 北京路德永泰环保科技有限公司 | Rubber asphalt with high storage stability and preparation method thereof |
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