CN107010876B - A kind of high-modulus oil resistant corrosion asphalt and preparation method thereof - Google Patents

A kind of high-modulus oil resistant corrosion asphalt and preparation method thereof Download PDF

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Publication number
CN107010876B
CN107010876B CN201710217611.5A CN201710217611A CN107010876B CN 107010876 B CN107010876 B CN 107010876B CN 201710217611 A CN201710217611 A CN 201710217611A CN 107010876 B CN107010876 B CN 107010876B
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partial size
modified substrate
gathering materials
oil resistant
ldpe
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CN107010876A (en
Inventor
侯芸
董元帅
田春玲
唐福军
张艳红
矫震
崔璟
姜蔚鹰
肖利明
戴建华
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CHINA HIGHWAY ENGINEERING CONSULTING GROUP Co Ltd
Heilongjiang Highway Administration
CHECSC HIGHWAY MAINTENANCE DETECTION TECHNOLOGY Co Ltd
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CHINA HIGHWAY ENGINEERING CONSULTING GROUP Co Ltd
Heilongjiang Highway Administration
CHECSC HIGHWAY MAINTENANCE DETECTION TECHNOLOGY Co Ltd
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Priority to CN201710217611.5A priority Critical patent/CN107010876B/en
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02Macromolecular compounds
    • C04B26/26Bituminous materials, e.g. tar, pitch
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474Uses not provided for elsewhere in C04B2111/00
    • C04B2111/0075Uses not provided for elsewhere in C04B2111/00 for road construction
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/203Oil-proof or grease-repellant materials

Abstract

The present invention relates to a kind of high-modulus oil resistant to corrode asphalt, is the gathering materials of 10~15mm including partial size, partial size is the gathering materials of 5~10mm, partial size is the gathering materials of 3~5mm, partial size is the gathering materials of 0~3mm, the miberal powder that partial size is 0~0.15mm, glass fibre, high-modulus modifier, oil resistant corrosive agent and matrix pitch.Invention also provides the preparation methods of high-modulus oil resistant corrosion asphalt.High-modulus oil resistant corrosion asphalt of the present invention has preferable oil resistant corrosive effect, also there is high modulus, simple production process simultaneously, oil resistant corrosive agent uses and direct plunges into method, it is not required to additionally add asphalt modification device and remaining equipment in construction, construct more convenient.

Description

A kind of high-modulus oil resistant corrosion asphalt and preparation method thereof
Technical field
The present invention relates to pavement construction material field, it is related to a kind of paving material and preparation method thereof, more particularly to A kind of high-modulus oil resistant corrosion asphalt and preparation method thereof.
Background technique
Bituminous pavement has good road-ability and excellent service performance, and construction speed is fast, easy to maintenance, therefore It is widely used in the highway construction in China.However, the fast development of logistics freight industry, causes the volume of traffic rapid Increase, the oil leakage phenomenons such as heavy-duty vehicle oil leak, vehicle trouble and traffic accident are got worse.
Pitch is a kind of macromolecule mixture of complexity, and the organic solvents such as gasoline, diesel oil are soluble in chemical component.Drip Harmful oily pollution (predominantly diesel oil, gasoline) pitch dissolution leaked on green road surface so that bituminous pavement surface layer occur softening and Loosely, under the comprehensive function of high temperature and rainwater, finally there are a series of different degrees of earlier period damage phenomenons such as pit slot, seriously The service performance and service level on road surface are influenced, while also accelerating the destruction of bituminous pavement.Road surface oil corrosion has become existing The present causes a kind of Latent destruction source of Protective Measures of Bitumen Pavement Initial Damage.
Therefore, the volume of traffic is increasingly heavy, under overload and the situation more aggravated of heavy duty, how to solve bituminous pavement early stage Track damage improves mixture oil rub resistance corrosive power, it has also become pavement engineering technical field personnel's urgent need to solve the problem.
In existing research, more the art researcher is only from asphalt oil resistant corrosion energy, oil erosion evaluation side The influence etc. of method, oil erosion to performance of asphalt mixture has carried out correlative study, and does not go out from asphalt mixture material itself Hair, improves its oil resistant corrosive nature.
Summary of the invention
In view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of high-modulus oil resistant to corrode asphalt.
Specifically, high-modulus oil resistant corrosion asphalt provided by the invention includes the component of following parts by weight:
Preferably, the asphalt includes the component of following parts by weight:
Wherein, the partial size is gathering materials for 10~15mm to refer to gathering materials for partial size > 10mm and≤15mm, partial size is 5~ Refer to the gathering materials of 10mm gathering materials for partial size > 5mm and≤10mm, partial size is gathering materials for 3~5mm to refer to partial size > 3mm and≤5mm Gather materials, partial size is gathering materials for 0~3mm to refer to gathering materials for partial size > 0mm and≤3mm.The miberal powder is partial size≤0.15mm Miberal powder.
It is of the present invention gather materials basalt or limestone can be used.The present invention by by a variety of particle size ranges gather materials and Miberal powder is used in mixed way with special ratios, can make gained mixture composed structure it is closely knit-suspension structure, for realization mixture High-modulus provide base support.
In order to further provide for the modulus of the asphalt, composition and use of the present invention to the high-modulus modifier Amount carries out preferred.Specifically, high-modulus modifier of the present invention is by modified substrate and to be added to the modified substrate In auxiliary agent composition.
Wherein, the modified substrate is by LLDPE (linear low density polyethylene), LDPE (low density polyethylene (LDPE)), SBS (styrene-butadiene-styrene) mixes.Specifically, the modified substrate is by LLDPE, LDPE and SBS It is mixed with 6~7:1.5 of mass ratio~2.5:1~2, is preferably mixed with mass ratio 6~6.5:2:1.5~2.As for The core component of high-modulus modifier, if replacing any one in LLDPE, LDPE and SBS or adjusting any one group Point dosage then will lead to the comprehensive performance decline of mixture.
In order to further increase the overall performance of high-modulus modifier, the present invention is additionally added in the modified substrate Adjuvant component and dosage carry out it is preferred.The auxiliary agent preferably includes light stabilizer, compatilizer, antioxidant and oxidic polyethylene. Specifically:
With the amount of the modified substrate for 100%, the light stabilizer is preferably 0.05~2% in additive amount wherein, More preferably 0.08~0.12%.It is multiple that the light stabilizer can be selected from one or more of model 6911,622,770, BW-10 Match;It is preferred that being compounded by 2~4:0.5~1.5 in mass ratio of model 6911 and 622.
With the amount of the modified substrate for 100%, the compatilizer is preferably 0.05~2% in additive amount wherein, more Preferably 0.25~0.35%.The compatilizer can be selected from LDPE-g-GMA, LDPE-g-MHA, poe-g-GMA, furfural extract oil In several compoundings;It is preferred that by LDPE-g-GMA, LDPE-g-MHA and furfural extract oil by weight 2~4:0.5~1.5:0.5 ~1.5 compound.
With the amount of the modified substrate for 100%, the antioxidant is preferably 0.05~2% in additive amount wherein, more Antioxidant described in preferably 0.05~0.1%. can be selected from 2,4- di-tert-butyl p-cresol, carbon black, several compoundings in B215;It is excellent Choosing is compounded with carbon black by weight 2~3:1~2 by 2,4- di-tert-butyl p-cresol.
With the amount of the modified substrate for 100%, the oxidic polyethylene additive amount wherein be preferably 0.05~ 2%, more preferably 0.08~0.12%.
The high-modulus modifier in actual use, uses double screw extruder melt pelletization after can mixing each raw material And it obtains.The present invention is changed using LLDPE, LDPE, SBS and various auxiliary agents as raw material using double screw extruder production high-modulus Property agent, simple production process, and high-modulus modifier transport, storage, it is easy to use.
In order to further provide for the oil resistant corrosivity of the asphalt, composition of the present invention to the oil resistant corrosive agent It carries out preferred.The oil resistant corrosive agent is preferably using-Si-O-Si- to be connected with alkyl, alkoxy on molecular backbone, silicon atom The compound of equal organic groups;Preferably modified polyorganosiloxane, further preferably organic modified polyorganosiloxane, it is more preferably poly- Ether modified polyorganosiloxane.
Invention also provides the methods for preparing above-mentioned high-modulus oil resistant corrosion asphalt.Specifically, this hair It is bright that described method includes following steps:
(1) by it is described gather materials, blender is added in miberal powder and glass fibre, by high-modulus modifier and anti-during dry mixing Oily corrosive agent direct plunges into blender, uniform mixing;
(2) matrix pitch is added in mixture obtained by the step (1), stir evenly to get.
High-modulus oil resistant of the present invention corrodes bituminous mixture simple process, and high-modulus modifier and oil resistant corrosive agent are adopted It with the method that direct plunges into, is not required to additionally add asphalt modification device and remaining equipment in construction, construct more convenient
Asphalt provided by the invention is added to the oil resistant corrosive agent of specific composition and dosage simultaneously in mixture And high-modulus modifier, there is preferable oil resistant corrosive effect, while also there is high modulus, can solve current high-grade public affairs The problems such as early stage high temperature Rutting damage present in the bituminous pavement of road, greasy dirt corrosion, improve the high-temperature stability of asphalt And oil rub resistance corrosive power, the early damage of bituminous pavement is effectively avoided, the service life of bituminous pavement is extended, it is big to postpone road surface In the maintenance timing repaired, significantly save maintaining cost;Improve the Rut resistance of asphalt, oil resistant corrosive nature it is same When, do not weaken or reduce remaining performance of asphalt, therefore there is great economic benefit and social benefit.
Specific embodiment
The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..
Embodiment 1
A kind of high-modulus oil resistant corrosion asphalt is present embodiments provided, consisting of: the stone of 10~15mm of partial size Limestone gathers materials 26kg, the limestone aggregates 13kg of the limestone aggregates 38kg of 5~10mm of partial size, 3~5mm of partial size, and partial size 0~ The miberal powder 2kg of the limestone aggregates 21kg of 3mm, 0~0.15mm of partial size, high-modulus modifier 0.5kg, Siloxane-Oxyalkylene Copolymers 0.5kg, glass fibre 0.5kg, matrix pitch 4.8kg.
Wherein, the high-modulus modifier is stablized by modified substrate and the light being additionally added in the modified substrate Agent, compatilizer, antioxidant and oxidic polyethylene composition;In practical applications, double screw extruder is used after each ingredient being mixed Melt pelletization is up to high-modulus modifier;
Specifically:
The modified substrate is to be mixed by LLDPE, LDPE and SBS with mass ratio 6:2:2;
Additive amount of the light stabilizer in the modified substrate is 0.1%, is stablized by light stabilizer 6911 and light The 3:1 in mass ratio of agent 622 is compounded;
Additive amount of the compatilizer in the modified substrate be 0.3%, be by LDPE-g-GMA, LDPE-g-MHA with Furfural extract oil is compounded by weight 3:1:1;
Additive amount of the antioxidant in the modified substrate is 0.05%, is by 2,4- di-tert-butyl p-cresol and charcoal It is black to be compounded by weight 2:1;
Additive amount of the oxidic polyethylene in the modified substrate is 0.1%.
Embodiment 2
A kind of high-modulus oil resistant corrosion asphalt is present embodiments provided, compared with Example 1, difference is only that: The modified substrate is to be mixed by LLDPE, LDPE and SBS with mass ratio 6.5:2:1.5.
Embodiment 3
A kind of preparation method of high-modulus oil resistant corrosion asphalt is present embodiments provided, embodiment 1,2 is described mixed Closing material can be used this method preparation, specifically:
(1) by it is described gather materials, blender is added in miberal powder and glass fibre, by high-modulus modifier and anti-during dry mixing Oily corrosive agent direct plunges into blender, uniform mixing;
(2) matrix pitch is added in mixture obtained by the step (1), stir evenly to get.
Comparative example 1
This comparative example provides a kind of high-modulus oil resistant corrosion asphalt, and compared with Example 1, difference is only that: The high-modulus modifier and Siloxane-Oxyalkylene Copolymers are not added.
Experimental example: pavement performance test
It is rotten to high-modulus oil resistant according to " highway engineering pitch and asphalt be language regulation " (JTG E20-2011) The pavement performance for losing asphalt carries out testing inspection, wherein rut test piece external coating 60mL diesel oil, marshal piece table 5mL diesel oil is brushed in face, after placing 2d, 7d at room temperature, after the diesel oil for wiping surface of test piece, carries out wheel tracking test and horse to test specimen Xie Er stability test, testing result are shown in Table 1.
Table 1: test result data
As it can be seen from table 1 the high-modulus oil resistant that embodiment 1, embodiment 2 provide corrodes asphalt after oil erosion Dynamic stability and the Marshall stability range of decrease be significantly less than comparative example, illustrate to show more in road surface oil rub resistance aspect of performance Excellent performance, hence it is evident that be better than comparative example mixture.
Although above having used general explanation, specific embodiment and test, the present invention is made to retouch in detail It states, but on the basis of the present invention, it can be made some modifications or improvements, this is apparent to those skilled in the art 's.Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, belong to claimed Range.

Claims (15)

1. a kind of high-modulus oil resistant corrodes asphalt, which is characterized in that the component including following parts by weight:
Partial size is gathering materials for 10 ~ 15mm 20 ~ 28 parts; Partial size is gathering materials for 5 ~ 10mm 32 ~ 40 parts; Partial size is gathering materials for 3 ~ 5mm 9 ~ 17 parts; Partial size is gathering materials for 0 ~ 3mm 18 ~ 26 parts; Partial size is the miberal powder of 0 ~ 0.15mm 1 ~ 6 part; Glass fibre 0.5 ~ 1.0 part; High-modulus modifier 0.5 ~ 1.5 part; Oil resistant corrosive agent 0.05 ~ 1.0 part; Matrix pitch 4 ~ 7 parts;
The high-modulus modifier is the modified substrate mixed by LLDPE, LDPE and SBS and is added to the modified base Light stabilizer, compatilizer, antioxidant and oxidic polyethylene composition in matter;The modified substrate is by LLDPE, LDPE and SBS It is mixed with 6 ~ 7:1.5 of mass ratio ~ 2.5:1 ~ 2;The oil resistant corrosive agent is using-Si-O-Si- as molecular backbone, silicon atom The compound of upper connection alkyl or alkoxy;
Wherein, the partial size is gathering materials for 10 ~ 15mm to refer to gathering materials for partial size > 10mm and≤15mm, and partial size is the collection of 5 ~ 10mm Material refers to gathering materials for partial size > 5mm and≤10mm, and partial size is gathering materials for 3 ~ 5mm to refer to gathering materials for partial size > 3mm and≤5mm, grain Diameter is gathering materials for 0 ~ 3mm to refer to gathering materials for partial size > 0mm and≤3mm, and the miberal powder is partial size≤0.15mm miberal powder.
2. asphalt according to claim 1, which is characterized in that the modified substrate be by LLDPE, LDPE with SBS is mixed with mass ratio 6 ~ 6.5:2:1.5 ~ 2.
3. asphalt according to claim 2, which is characterized in that with the amount of the modified substrate for 100%,
Additive amount of the light stabilizer in the modified substrate is 0.05 ~ 2%;
Additive amount of the compatilizer in the modified substrate is 0.05 ~ 2%;
Additive amount of the antioxidant in the modified substrate is 0.05 ~ 2%;
Additive amount of the oxidic polyethylene in the modified substrate is 0.05 ~ 2%.
4. asphalt according to claim 2 or 3, which is characterized in that the light stabilizer be model 6911,622, 770, one or more of BW-10 is compounded.
5. asphalt according to claim 4, which is characterized in that the light stabilizer is that model 6911 and 622 is pressed Mass ratio 2 ~ 4:0.5 ~ 1.5 compound.
6. asphalt according to claim 2 or 3, which is characterized in that the compatilizer be LDPE-g-GMA, Several compoundings in LDPE-g-MHA, poe-g-GMA, furfural extract oil.
7. asphalt according to claim 6, which is characterized in that the compatilizer is LDPE-g-GMA, LDPE-g- MHA is compounded with furfural extract oil by weight 2 ~ 4:0.5 ~ 1.5:0.5 ~ 1.5.
8. asphalt according to claim 2 or 3, which is characterized in that the antioxidant is 2,4- di-t-butyl pair Cresols, carbon black, several compoundings in B215.
9. asphalt according to claim 8, which is characterized in that the antioxidant is 2,4- di-tert-butyl p-cresol It is compounded with carbon black by weight 2 ~ 3:1 ~ 2.
10. asphalt according to claim 1, which is characterized in that the high-modulus modifier is to mix each raw material It is prepared after conjunction using double screw extruder melt pelletization.
11. asphalt according to claim 1, which is characterized in that the oil resistant corrosive agent is modified polyorganosiloxane.
12. asphalt according to claim 11, which is characterized in that the oil resistant corrosive agent is organically-modified poly- silicon Oxygen alkane.
13. asphalt according to claim 12, which is characterized in that the oil resistant corrosive agent is polyether-modified poly- silicon Oxygen alkane.
14. asphalt according to claim 1, which is characterized in that the component including following parts by weight:
Partial size is the limestone aggregates of 10 ~ 15mm 24 ~ 28 parts; Partial size is the limestone aggregates of 5 ~ 10mm 36 ~ 40 parts; Partial size is the limestone aggregates of 3 ~ 5mm 11 ~ 15 parts; Partial size is the limestone aggregates of 0 ~ 3mm 19 ~ 23 parts; Partial size is the miberal powder of 0 ~ 0.15mm 1 ~ 3 part; Glass fibre 0.5 ~ 0.7 part; High-modulus modifier 0.5 ~ 0.7 part; Siloxane-Oxyalkylene Copolymers 0.5 ~ 0.7 part; Matrix pitch 4 ~ 5.5 parts;
The high-modulus modifier is by modified substrate and the light stabilizer being added in the modified substrate, compatilizer, antioxygen Agent and oxidic polyethylene composition;
The modified substrate is to be mixed by LLDPE, LDPE and SBS with mass ratio 6 ~ 6.5:2:1.5 ~ 2;
With the amount of the modified substrate be 100%, additive amount of the light stabilizer in the modified substrate be 0.08 ~ 0.12%, it is to be compounded by light stabilizer 6911 with 2 ~ 4:0.5 ~ 1.5 in mass ratio of light stabilizer 622;
With the amount of the modified substrate for 100%, additive amount of the compatilizer in the modified substrate is 0.25 ~ 0.35%, It is to be compounded with furfural extract oil by weight 2 ~ 4:0.5 ~ 1.5:0.5 ~ 1.5 by LDPE-g-GMA, LDPE-g-MHA;
With the amount of the modified substrate for 100%, additive amount of the antioxidant in the modified substrate is 0.05 ~ 0.1%, is It is compounded with carbon black by weight 2 ~ 3:1 ~ 2 by 2,4- di-tert-butyl p-cresol;
With the amount of the modified substrate be 100%, additive amount of the oxidic polyethylene in the modified substrate be 0.08 ~ 0.12%。
15. the preparation method of asphalt described in claim 1-14 any one, which comprises the steps of:
(1) blender is added in the gathering materials of each partial size, miberal powder and glass fibre, by high-modulus modifier and anti-during dry mixing Oily corrosive agent direct plunges into blender, and uniform mixing obtains mixture;
(2) matrix pitch is added in mixture obtained by the step (1), stir evenly to get.
CN201710217611.5A 2017-04-05 2017-04-05 A kind of high-modulus oil resistant corrosion asphalt and preparation method thereof Active CN107010876B (en)

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CN110357495B (en) * 2019-06-24 2021-08-10 中国路桥工程有限责任公司 High-modulus asphalt mixture and preparation method thereof
CN111101424A (en) * 2019-11-28 2020-05-05 苏州万祥科技股份有限公司 Multi-station feeding device

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JP2015010379A (en) * 2013-06-28 2015-01-19 東亜道路工業株式会社 Manufacturing method of pavement mixture and pavement mixture
CN104910637A (en) * 2015-06-10 2015-09-16 四川蜀羊防水材料有限公司 SBS/PE (styrene-butadiene-styrene/polyethylene) modified asphalt material

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