CN109735125A - A kind of novel high-strength anti-rutting modified asphalt and preparation method thereof - Google Patents
A kind of novel high-strength anti-rutting modified asphalt and preparation method thereof Download PDFInfo
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- CN109735125A CN109735125A CN201910031166.2A CN201910031166A CN109735125A CN 109735125 A CN109735125 A CN 109735125A CN 201910031166 A CN201910031166 A CN 201910031166A CN 109735125 A CN109735125 A CN 109735125A
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Abstract
The invention discloses a kind of novel high-strength anti-rutting modified asphalts, including 70#Esso heavy traffic paving asphalt, modifying agent and additive, the additive include anti-rut agent, stabilizer and cosolvent；The wherein mass percent of each component are as follows: 70#Esso heavy traffic paving asphalt 80-95%, modifying agent 1-10%, anti-rut agent 1-10%, stabilizer 0.1-5% and cosolvent 1-10%.The invention also discloses a kind of preparation methods of novel high-strength anti-rutting modified asphalt.The modified pitch that the present invention is prepared has good high-intensitive anti-rut behavior, and tensile splitting strength is high, can effectively extend the service life of pavement material, increases vehicle driving comfort level, with good economic efficiency.
Description
Technical field
The present invention relates to technical field of road engineering materials more particularly to a kind of novel high-strength anti-rutting modified asphalt and
Preparation method.
Background technique
Currently, common SBS modified asphalt mixture road surface on road, track problem is particularly acute under high temperature heavy load.
It is mainly shown as that track causes road table excessive deformation, influences the flatness on road surface；Asphalt thickness is thinned at roadbed wheel track, weakens
The integral strength of surface layer and pavement structure, to be easy to induce other diseases.
The generation of track has seriously affected the service life on road surface or even can aggravate the generation of other diseases of road, such as pine
The diseases such as scattered, pit-hole, check crack shorten its service life to reduce the use quality of bituminous pavement, with huge economy
Loss.Research has shown that, causes the immediate cause of bituminous pavement early damage and asphalt mastic related with the adhesiveness gathered materials.In order to
The adhesiveness for improving asphalt mastic and gathering materials, it is main to pass through the adhesive property for improving asphalt material or utilize cement, lime and steel
The industrial residues such as slag substitute the asphalt mastic that the mountain flour in mineral aggregate forms high viscosity.It has passed through long-term research, add in pitch
Add the modifying agent such as diatomite, slag or the mountain flour substituted in mineral aggregate that can still go out in the short time although there is certain effect
The pavement diseases such as packet, protuberance are now gathered around, therefore do not obtain the popularization of large area.Since SBS asphaltic road-mix surface course is in high temperature weight
It carries lower track problem to be particularly acute, therefore, the superior asphalt material of anti-rut behavior for finding a kind of high intensity just seems especially
It is important.
External high-strength asphalt high-temperature excellent in stability, much larger than common road modified asphalt, be suitable for loaded vehicle road, bend,
Mountain area is grown up steep slope road section intersection, deck paving etc., but external high-strength asphalt price is expensive, and being unsuitable for promoting at home makes
With.
Summary of the invention
It is an object of the invention to: in view of the above problems, provide a kind of novel high-strength Rut resistance modified drip
Blueness while taking into account economy, overcomes the problem of common road modified asphalt anti-rut behavior deficiency.
In order to achieve the above-mentioned object of the invention, The technical solution adopted by the invention is as follows:
A kind of novel high-strength anti-rutting modified asphalt, including 70#Esso heavy traffic paving asphalt, modifying agent and additive, it is described
Additive includes anti-rut agent, stabilizer and cosolvent；The wherein mass percent of each component are as follows: 70#Esso heavy traffic paving asphalt 80-
95%, modifying agent 1-10%, anti-rut agent 1-10%, stabilizer 0.1-5% and cosolvent 1-10%.
Preferably, further include SAS0BIT, the SAS0BIT and 70#The mass percent of Esso heavy traffic paving asphalt is 0.5-
8%.
Preferably, the modifying agent is SBST161B.
Preferably, the anti-rut agent is made of the raw material of following mass percent: RA resin 35-45%, butadiene-styrene rubber
40-50% and rosin stabilizer 12-18%.
Preferably, the stabilizer is made of the raw material of following parts by weight: 50-80 parts of sulphur powder, 5-10 parts of carbon black, nanometer
1-10 parts of zinc oxide, 1-5 parts of white mica powder and 1-10 parts of precipitated calcium carbonate.
Preferably, the preparation method of the stabilizer the following steps are included:
(1) each raw material is weighed according to the proportion, and sulphur powder is spare after drying to constant weight；
(2) after mixing by carbon black, nano zine oxide, white mica powder and precipitated calcium carbonate, drying to constant weight, is done
Mixture after dry；
(3) then by after drying sulphur powder and mixture after mixing, in 120-160 DEG C of investment mixer, carry out
Mixing is mixed, then extrusion granulation is cooling.
Preferably, the cosolvent is lime cosolvent.
The present invention also provides a kind of preparation methods of novel high-strength anti-rutting modified asphalt, comprising the following steps:
(1) 70 are weighed in proportion#Esso heavy traffic paving asphalt is heated to 180-190 DEG C, stirs spare；
(2) toward the 70 of step (1)#It is slowly added weighed modifying agent in Esso heavy traffic paving asphalt, opens cutter, temperature
0.5-1.5h is sheared under conditions of being maintained at 180-190 DEG C, continues stirring development 3-5h after stopping shearing, temperature keeps 175 ± 2
℃；
(3) it is slowly added weighed stabilizer, continues to stir 0.5-1.5h, is then slowly added weighed hydrotropy
Agent is further continued for stirring 0.5-1h, and temperature is maintained at 180 ± 2 DEG C during this；
(4) weighed anti-rut agent and SAS0BIT are slowly added in order again, temperature is maintained at 180 ± 2 DEG C, continues
1-3h is to get the novel high-strength anti-rutting modified asphalt for stirring development.
Preferably, the shear velocity of the cutter is 3000-4500r/min.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
Novel high-strength anti-rutting modified asphalt of the invention has good high-intensitive anti-rut behavior, dynamic stability
For DS up to 13000 times/mm or more, tensile splitting strength is high, can effectively extend the service life of pavement material, increase vehicle driving
Comfort level, it is with good economic efficiency.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, preferred embodiment is enumerated below, to this hair
Bright further description.However, it is necessary to illustrate, many details listed in specification are used for the purpose of making reader to this
The one or more aspects of invention have a thorough explanation, also may be implemented even without these specific details of the invention
These aspects.
SBST161B is styrene-butadiene, is purchased from middle petroleum Dushanzi petro-chemical corporation；RA resin is rosin resin；
SAS0BIT is new type polyolefin class, and chemical composition is long-chain fat race alkane, and producer is Sasol-Wax company, Germany.
Embodiment 1
A kind of novel high-strength anti-rutting modified asphalt, including 70#Esso heavy traffic paving asphalt, modifying agent and additive, it is described
Additive includes anti-rut agent, stabilizer and cosolvent, and modifying agent SBST161B, cosolvent is lime cosolvent；It is wherein each
The mass percent of component are as follows: 70#Esso heavy traffic paving asphalt 89%, modifying agent 4.3%, anti-rut agent 4.3%, stabilizer 0.42%
And cosolvent 2.1%.
The anti-rut agent is made of the raw material of following mass percent: RA resin 40%, butadiene-styrene rubber 45% and rosin
Stabilizer 15%.
The stabilizer is made of the raw material of following parts by weight: 60 parts of sulphur powder, 8 parts of carbon black, 5 parts of nano zine oxide, white
3 parts of mica powder and 6 parts of precipitated calcium carbonate.The preparation method of the stabilizer the following steps are included:
(1) each raw material is weighed according to the proportion, and sulphur powder is spare after drying to constant weight；
(2) after mixing by carbon black, nano zine oxide, white mica powder and precipitated calcium carbonate, drying to constant weight, is done
Mixture after dry；
(3) then by after drying sulphur powder and mixture after mixing, in 150 DEG C of investment mixers, mixed
Mixing, then extrusion granulation is cooling.
The preparation method of the novel high-strength anti-rutting modified asphalt, comprising the following steps:
(1) 70 are weighed#Generic media pitch 1672g, for electricity consumption stove heating to 180 DEG C, stirring is stand-by；
(2) SBST161B 80g is weighed, the 70 of step (1) are added slowly to#In Esso heavy traffic paving asphalt, cutter is opened,
4000r/min is adjusted the speed, 1h is sheared, temperature is kept for 180 DEG C；Stop shearing after 1h, continue stirring development 4h, temperature keeps 175 ± 2
℃；
(3) stabilizer 8g is weighed, is slowly added, continues to stir 1h, temperature rises to 180 ± 2 DEG C；Cosolvent 40g is weighed, is delayed
Slow addition continues to stir 0.5h；Temperature is kept for 180 ± 2 DEG C；
(4) weigh from grinding anti-rut agent 80g, be slowly added, temperature is kept for 180 ± 2 DEG C, continue stirring development 2h to get.
Embodiment 2
A kind of novel high-strength anti-rutting modified asphalt, including 70#Esso heavy traffic paving asphalt, modifying agent and additive, it is described
Additive includes anti-rut agent, SAS0BIT, stabilizer and cosolvent, and modifying agent SBST161B, cosolvent is lime hydrotropy
Agent；The wherein mass percent of each component are as follows: 70#Esso heavy traffic paving asphalt 89%, modifying agent 4.3%, anti-rut agent 4.3%,
SAS0BIT2.1%, stabilizer 0.42% and cosolvent 2.1%.
The anti-rut agent is made of the raw material of following mass percent: RA resin 35%, butadiene-styrene rubber 50% and rosin
Stabilizer 18%.
The stabilizer is made of the raw material of following parts by weight: 50 parts of sulphur powder, 10 parts of carbon black, 10 parts of nano zine oxide,
1 part of white mica powder and 10 parts of precipitated calcium carbonate.The preparation method of the stabilizer the following steps are included:
(1) each raw material is weighed according to the proportion, and sulphur powder is spare after drying to constant weight；
(2) after mixing by carbon black, nano zine oxide, white mica powder and precipitated calcium carbonate, drying to constant weight, is done
Mixture after dry；
(3) then by after drying sulphur powder and mixture after mixing, in 120 DEG C of investment mixers, mixed
Mixing, then extrusion granulation is cooling.
The preparation method of the novel high-strength anti-rutting modified asphalt, comprising the following steps:
(1) 70 are weighed#Generic media pitch 1672g, for electricity consumption stove heating to 190 DEG C, stirring is stand-by；
(2) SBST161B 80g is weighed, the 70 of step (1) are added slowly to#In Esso heavy traffic paving asphalt, cutter is opened,
4000r/min is adjusted the speed, 1h is sheared, temperature is kept for 180 DEG C；Stop shearing after 1h, continue stirring development 4h, temperature keeps 175 ± 2
℃；
(3) stabilizer 8g is weighed, is slowly added, continues to stir 1h, temperature rises to 180 ± 2 DEG C；Cosolvent 40g is weighed, is delayed
Slow addition continues to stir 0.5h；Temperature is kept for 180 ± 2 DEG C；
(4) it weighs from anti-rut agent 80g and SAS0BIT 40g is ground, is slowly added, temperature is kept for 180 ± 2 DEG C, continues to stir
Mix development 2h to get.
Embodiment 3
A kind of novel high-strength anti-rutting modified asphalt, including 70#Esso heavy traffic paving asphalt, modifying agent and additive, it is described
Additive includes anti-rut agent, SAS0BIT, stabilizer and cosolvent, and modifying agent SBST161B, cosolvent is lime hydrotropy
Agent；The wherein mass percent of each component are as follows: 70#Esso heavy traffic paving asphalt 89%, modifying agent 4.3%, anti-rut agent 4.3%,
SAS0BIT2.1%, stabilizer 0.42% and cosolvent 2.1%.
The anti-rut agent is made of the raw material of following mass percent: RA resin 45%, butadiene-styrene rubber 40% and rosin
Stabilizer 12%.
The stabilizer is made of the raw material of following parts by weight: 80 parts of sulphur powder, 5 parts of carbon black, 1 part of nano zine oxide, white
5 parts of mica powder and 1 part of precipitated calcium carbonate.The preparation method of the stabilizer the following steps are included:
(1) each raw material is weighed according to the proportion, and sulphur powder is spare after drying to constant weight；
(2) after mixing by carbon black, nano zine oxide, white mica powder and precipitated calcium carbonate, drying to constant weight, is done
Mixture after dry；
(3) then by after drying sulphur powder and mixture after mixing, in 160 DEG C of investment mixers, mixed
Mixing, then extrusion granulation is cooling.
The preparation method of the novel high-strength anti-rutting modified asphalt, comprising the following steps:
(1) 70 are weighed#Generic media pitch 1672g, for electricity consumption stove heating to 180 DEG C, stirring is stand-by；
(2) SBST161B 80g is weighed, the 70 of step (1) are added slowly to#In Esso heavy traffic paving asphalt, cutter is opened,
4000r/min is adjusted the speed, 1h is sheared, temperature is kept for 180 DEG C；Stop shearing after 1h, continue stirring development 4h, temperature keeps 175 ± 2
℃；
(3) stabilizer 8g is weighed, is slowly added, continues to stir 1h, temperature rises to 180 ± 2 DEG C；Cosolvent 40g is weighed, is delayed
Slow addition continues to stir 0.5h；Temperature is kept for 180 ± 2 DEG C；
(4) it weighs from anti-rut agent 80g and SAS0BIT 40g is ground, is slowly added, temperature is kept for 180 ± 2 DEG C, continues to stir
Mix development 2h to get.
Embodiment 4
The present embodiment is consistent with other technological parameters of embodiment 3, the difference is that only: a kind of anti-vehicle of novel high-strength
Rut modified pitch, including 70#Esso heavy traffic paving asphalt, modifying agent and additive, the additive include anti-rut agent, SASOBIT,
Stabilizer and cosolvent, modifying agent SBST161B, cosolvent are lime cosolvent；The wherein mass percent of each component are as follows:
70#Esso heavy traffic paving asphalt 80%, modifying agent 1%, anti-rut agent 1%, SASOBIT0.5%, stabilizer 0.1% and cosolvent
1%.
Embodiment 5
The present embodiment is consistent with other technological parameters of embodiment 3, the difference is that only: a kind of anti-vehicle of novel high-strength
Rut modified pitch, including 70#Esso heavy traffic paving asphalt, modifying agent and additive, the additive include anti-rut agent, SASOBIT,
Stabilizer and cosolvent, modifying agent SBST161B, cosolvent are lime cosolvent；The wherein mass percent of each component are as follows:
70#Esso heavy traffic paving asphalt 95%, modifying agent 10%, anti-rut agent 10%, SASOBIT8%, stabilizer 5% and cosolvent 10%.
Anti-rut agent, the novel high-strength anti-rutting modified asphalt that the embodiment of the present invention 3 is prepared carry out correlation
Energy index test, test result is shown in Table 1 and table 2, and hands over matrix pitch compound, SBS performance of asphalt mixture again with 70#Esso
It compares, comparing result is shown in Table 3.
1 anti-rut agent the performance test results of table
| Project | Unit | Technical requirements | Test method | Actual measurement |
| Softening point (ring and ball method) | ℃ | 113.1 | GB/T4507 | 115.2 |
| Solubility (trichloro ethylene) | % | 99.78 | GB/T11148 | 99.82 |
| Flash-point (opening) | ℃ | 354.8 | GB/T267 | 362.0 |
| Brittle point | ℃ | -8.4 | GB/T4510 | -7.2 |
| Content of ashes | % | 0.013 | / | 0.011 |
2 novel high-strength anti-rutting modified asphalt the performance test results of table
As shown in Table 2, higher, the glutinous toughness of products obtained therefrom softening point of the present invention is preferable；Needle penetration, 25 DEG C of elastic recoveries
The testing results such as energy, solubility and flash-point reach standard, illustrate that this product formability is good, fast；35 DEG C of product of the present invention and 60
DEG C dynamic shearing performance is high, while Dynamic Viscosity with higher, illustrates that this product elongation at break and tensile splitting strength are high
While, the intensity of product has also been effectively ensured.
3 novel high-strength anti-rutting modified asphalt mixture of table, 70#Esso hands over matrix pitch compound, SBS pitch mixed again
Close material performance comparison result
As shown in Table 3, the stability of the novel high-strength anti-rutting modified asphalt that the present invention is prepared, water stability,
The performances such as dynamic stability DS and cleavage strength are better than 70#Esso hands over matrix pitch compound, SBS asphalt again；Especially
The dynamic stability DS of wheel tracking test, effect are much better than 70#Esso hands over matrix pitch compound, SBS asphalt, Rut resistance again
Both the impact of performance is significant, and novel high-strength anti-rutting modified asphalt dynamic stability DS of the invention is 13680 times/mm, then
Only 1687 times/mm and 4372 time/mm.To sum up, novel high-strength anti-rutting modified asphalt tensile splitting strength of the invention is high,
The service life of pavement material can effectively be extended, increase vehicle driving comfort level, it is with good economic efficiency.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the principle of the present invention, it can also make several improvements and retouch, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (9)
1. a kind of novel high-strength anti-rutting modified asphalt, it is characterised in that: including 70#Esso heavy traffic paving asphalt, modifying agent and addition
Agent, the additive include anti-rut agent, stabilizer and cosolvent；The wherein mass percent of each component are as follows: 70#Esso is handed over again
Pitch 80-95%, modifying agent 1-10%, anti-rut agent 1-10%, stabilizer 0.1-5% and cosolvent 1-10%.
2. novel high-strength anti-rutting modified asphalt according to claim 1, it is characterised in that: it further include SAS0BIT, institute
State SAS0BIT and 70#The mass percent of Esso heavy traffic paving asphalt is 0.5-8%.
3. novel high-strength anti-rutting modified asphalt according to claim 2, it is characterised in that: the modifying agent is
SBST161B。
4. novel high-strength anti-rutting modified asphalt according to claim 2, it is characterised in that: the anti-rut agent by with
The raw material of lower mass percent forms: RA resin 35-45%, butadiene-styrene rubber 40-50% and rosin stabilizer 12-18%.
5. novel high-strength anti-rutting modified asphalt according to claim 2, it is characterised in that: the stabilizer is by following
The raw materials of parts by weight forms: 50-80 part of sulphur powder, 5-10 parts of carbon black, 1-10 parts of nano zine oxide, 1-5 parts of white mica powder and gently
1-10 parts of matter calcium carbonate.
6. novel high-strength anti-rutting modified asphalt according to claim 5, it is characterised in that: the preparation of the stabilizer
Method the following steps are included:
(1) each raw material is weighed according to the proportion, and sulphur powder is spare after drying to constant weight；
(2) after mixing by carbon black, nano zine oxide, white mica powder and precipitated calcium carbonate, drying to constant weight, after being dried
Mixture；
(3) then by after drying sulphur powder and mixture after mixing, in 120-160 DEG C of investment mixer, mixed
Mixing, then extrusion granulation is cooling.
7. novel high-strength anti-rutting modified asphalt according to claim 2, it is characterised in that: the cosolvent is lime
Cosolvent.
8. according to the preparation method of the described in any item novel high-strength anti-rutting modified asphalts of claim 2 to 7, feature exists
In: the following steps are included:
(1) 70 are weighed in proportion#Esso heavy traffic paving asphalt is heated to 180-190 DEG C, stirs spare；
(2) toward the 70 of step (1)#It is slowly added weighed modifying agent in Esso heavy traffic paving asphalt, opens cutter, temperature is kept
0.5-1.5h is sheared under conditions of 180-190 DEG C, continues stirring development 3-5h after stopping shearing, temperature is kept for 175 ± 2 DEG C；
(3) it is slowly added weighed stabilizer, continues to stir 0.5-1.5h, is then slowly added weighed cosolvent, then
Continue to stir 0.5-1h, temperature is maintained at 180 ± 2 DEG C during this；
(4) weighed anti-rut agent and SAS0BIT are slowly added in order again, temperature is maintained at 180 ± 2 DEG C, continues to stir
1-3h is developed to get the novel high-strength anti-rutting modified asphalt.
9. the preparation method of novel high-strength anti-rutting modified asphalt according to claim 8, it is characterised in that: described to cut
The shear velocity for cutting machine is 3000-4500r/min.
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Cited By (5)
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| CN110082256A (en) * | 2019-05-17 | 2019-08-02 | 河南省公路工程局集团有限公司 | A method of distinguishing high-modulus agent and anti-rut agent |
| CN110237753A (en) * | 2019-07-08 | 2019-09-17 | 广西交通职业技术学院 | A kind of novel modified asphalt floatingization agitating device |
| CN110484005A (en) * | 2019-07-19 | 2019-11-22 | 山东北方创信防水科技股份有限公司 | It is a kind of to touch viscosity modifying asphalt water-proof coiled material and preparation method thereof |
| CN113387607A (en) * | 2021-06-07 | 2021-09-14 | 广西交建工程检测咨询有限公司 | Novel retarding high-performance water reducing agent and preparation method thereof |
| CN115850800A (en) * | 2022-12-07 | 2023-03-28 | 青岛科凯达橡塑有限公司 | Environment-friendly stabilizer for modified asphalt and preparation method thereof |
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Application publication date: 20190510 |