CN117924954A - Modified high-modulus asphalt and preparation method thereof - Google Patents
Modified high-modulus asphalt and preparation method thereof Download PDFInfo
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- CN117924954A CN117924954A CN202410060703.7A CN202410060703A CN117924954A CN 117924954 A CN117924954 A CN 117924954A CN 202410060703 A CN202410060703 A CN 202410060703A CN 117924954 A CN117924954 A CN 117924954A
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- Prior art keywords
- asphalt
- modified high
- parts
- modulus asphalt
- mineral powder
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- 239000010426 asphalt Substances 0.000 title claims abstract description 87
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 26
- 239000011707 mineral Substances 0.000 claims abstract description 26
- 239000000843 powder Substances 0.000 claims abstract description 26
- 239000002131 composite material Substances 0.000 claims abstract description 17
- 239000003607 modifier Substances 0.000 claims abstract description 17
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 16
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 16
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 16
- 239000007822 coupling agent Substances 0.000 claims abstract description 16
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 claims abstract description 13
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 11
- 239000003822 epoxy resin Substances 0.000 claims abstract description 8
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 239000005007 epoxy-phenolic resin Substances 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims description 25
- 238000003756 stirring Methods 0.000 claims description 20
- 239000003208 petroleum Substances 0.000 claims description 19
- 235000019738 Limestone Nutrition 0.000 claims description 10
- 239000006028 limestone Substances 0.000 claims description 10
- 239000005011 phenolic resin Substances 0.000 claims description 8
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 claims description 6
- 239000004593 Epoxy Substances 0.000 claims description 5
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 5
- 229910000077 silane Inorganic materials 0.000 claims description 5
- -1 beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) stearyl propionate Chemical compound 0.000 claims description 4
- NPGANJGGHAXWBF-SECBINFHSA-N (1R)-1-[diethoxy(propyl)silyl]oxyethanamine Chemical compound N[C@@H](C)O[Si](OCC)(OCC)CCC NPGANJGGHAXWBF-SECBINFHSA-N 0.000 claims description 3
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 claims description 3
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 3
- 230000032683 aging Effects 0.000 abstract description 4
- 230000003647 oxidation Effects 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 3
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229960001124 trientine Drugs 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical group CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The invention discloses modified high-modulus asphalt and a preparation method thereof, and relates to the technical field of asphalt, wherein the modified high-modulus asphalt comprises the following raw material components in parts by weight: 80-90 parts of asphalt, 3-4 parts of composite modifier, 4-5 parts of mineral powder, 0.6-0.8 part of curing agent, 0.4-0.5 part of coupling agent and 0.3-0.5 part of antioxidant; the composite modifier comprises epoxy resin, phenolic resin and styrene-butadiene-styrene block copolymer. The modified high-modulus asphalt provided by the invention has the advantages of high softening point, excellent rutting resistance, excellent crack resistance, high modulus, high and low temperature resistance, ageing resistance, oxidation resistance and high thermal stability.
Description
Technical Field
The invention relates to the technical field of asphalt, in particular to modified high-modulus asphalt and a preparation method thereof.
Background
Bitumen is a high viscosity organic liquid, a complex mixture of blackish brown hydrocarbons of varying molecular weight and nonmetallic derivatives thereof. Asphalt is in liquid state, the surface is black, and the asphalt is soluble in carbon disulfide. Asphalt is a waterproof, dampproof and anticorrosive organic cementing material. Asphalt is mainly used for paving a pavement, and most diseases are caused by rutting deformation in all disease types of the asphalt pavement, so that the safety of vehicle operation can be greatly influenced, and the service level and the service life of the pavement are reduced.
The prior art adopts PE modified asphalt, although the PE modified asphalt has the advantages of small deformation and strong rut resistance. However, PE modified asphalt is rapidly isolated, must be supplied on site, and has poor low-temperature and crack resistance, which can lead to cracking of the pavement. The requirements of the existing pavement construction cannot be met.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides modified high-modulus asphalt and a preparation method thereof. The modified high-modulus asphalt provided by the invention has the advantages of high softening point, excellent rutting resistance, excellent crack resistance, high modulus, high and low temperature resistance, ageing resistance, oxidation resistance and high thermal stability.
The invention aims to protect modified high-modulus asphalt, which comprises the following raw material components in parts by weight: 80-90 parts of asphalt, 3-4 parts of composite modifier, 4-5 parts of mineral powder, 0.6-0.8 part of curing agent, 0.4-0.5 part of coupling agent and 0.3-0.5 part of antioxidant; the composite modifier comprises epoxy resin, phenolic resin and styrene-butadiene-styrene block copolymer.
Preferably, the asphalt is road petroleum asphalt, and the road petroleum asphalt is one or more of 70# road petroleum asphalt, 90# road petroleum asphalt and 110# A road petroleum asphalt.
Preferably, the epoxy resin is one or more of R139 and R144; the phenolic resin is one or more of 2112 and 2116; the styrene-butadiene-styrene block copolymer is one or more of SBS792 and SBS 796.
Preferably, the mineral powder is limestone mineral powder, and the mesh number of the limestone mineral powder is 800-1000 meshes.
Preferably, the curing agent is one or more of hexamethylenediamine, diethylenetriamine and triethylenetetramine.
Preferably, the coupling agent is one or more of epoxy silane kh-560 and r-amino propyl triethoxy silane.
Preferably, the antioxidant is stearyl beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate.
The invention also aims at protecting the preparation method of the modified high-modulus asphalt, which comprises the following steps:
heating asphalt, and adding a composite modifier, mineral powder, a curing agent, a coupling agent and an antioxidant into the asphalt to perform heating and stirring to obtain the modified high-modulus asphalt.
Preferably, the heating is to 160-180 ℃.
Preferably, the heating and stirring are performed by heating to 180-190 ℃ and stirring for 50min at a stirring speed of 200-300 r/min.
The beneficial effects of the invention are as follows:
(1) The modified high-modulus asphalt provided by the invention has the advantages of high softening point, excellent rutting resistance, excellent crack resistance, high modulus, high and low temperature resistance, ageing resistance, oxidation resistance and high thermal stability.
(2) The preparation method provided by the invention is simple to operate, stable in technology and easy to obtain raw materials, and the prepared modified high-modulus asphalt has excellent effect and great popularization value.
Detailed Description
Embodiments of the technical scheme of the present invention will be described in detail below. The following examples are only for more clearly illustrating the technical aspects of the present invention, and thus are merely examples, and are not intended to limit the scope of the present invention.
It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs.
Example 1
The embodiment provides modified high-modulus asphalt, which comprises the following raw material components in parts by weight: 85 parts of asphalt, 3.5 parts of composite modifier, 4.5 parts of mineral powder, 0.7 part of curing agent, 0.45 part of coupling agent and 0.4 part of antioxidant; the composite modifier comprises the following components in parts by weight: 2:1, phenolic resin, styrene-butadiene-styrene block copolymer.
The asphalt is road petroleum asphalt, and the road petroleum asphalt is 70# A grade road petroleum asphalt.
The epoxy resin is R139; the phenolic resin is 2112; the styrene-butadiene-styrene block copolymer was SBS792.
The mineral powder is limestone mineral powder, and the mesh number of the limestone mineral powder is 1000 meshes.
The curing agent is hexamethylenediamine.
The coupling agent is epoxy silane kh-560.
The antioxidant is beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) stearyl propionate.
The embodiment also provides a preparation method of the modified high-modulus asphalt, which comprises the following steps:
heating asphalt, and adding a composite modifier, mineral powder, a curing agent, a coupling agent and an antioxidant into the asphalt to perform heating and stirring to obtain the modified high-modulus asphalt.
Wherein the heating is to 170 ℃.
The heating and stirring were carried out by heating to 185℃and stirring at a stirring speed of 250r/min for 50min.
Example 2
The embodiment provides modified high-modulus asphalt, which comprises the following raw material components in parts by weight: 80 parts of asphalt, 3 parts of composite modifier, 4 parts of mineral powder, 0.6 part of curing agent, 0.4 part of coupling agent and 0.3 part of antioxidant; the composite modifier comprises the following components in parts by weight: 2:1, phenolic resin, styrene-butadiene-styrene block copolymer.
The asphalt is road petroleum asphalt, and the road petroleum asphalt is 90# A grade road petroleum asphalt.
The epoxy resin is R144; phenolic resin 2116; the styrene-butadiene-styrene block copolymer was SBS796.
The mineral powder is limestone mineral powder, and the mesh number of the limestone mineral powder is 1000 meshes.
The curing agent is diethylenetriamine.
The coupling agent is epoxy silane r-amino propyl triethoxy silane.
The antioxidant is beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) stearyl propionate.
The embodiment also provides a preparation method of the modified high-modulus asphalt, which comprises the following steps:
heating asphalt, and adding a composite modifier, mineral powder, a curing agent, a coupling agent and an antioxidant into the asphalt to perform heating and stirring to obtain the modified high-modulus asphalt.
Wherein the heating is to 170 ℃.
The heating and stirring were carried out by heating to 185℃and stirring at a stirring speed of 250r/min for 50min.
Example 3
The embodiment provides modified high-modulus asphalt, which comprises the following raw material components in parts by weight: 90 parts of asphalt, 4 parts of composite modifier, 5 parts of mineral powder, 0.8 part of curing agent, 0.5 part of coupling agent and 0.5 part of antioxidant; the composite modifier comprises the following components in parts by weight: 2:1, phenolic resin, styrene-butadiene-styrene block copolymer.
The asphalt is road petroleum asphalt, and the road petroleum asphalt is 110#A road petroleum asphalt.
The epoxy resin is R139; the phenolic resin is 2112; the styrene-butadiene-styrene block copolymer was SBS792.
The mineral powder is limestone mineral powder, and the mesh number of the limestone mineral powder is 1000 meshes.
The curing agent is triethylene tetramine.
The coupling agent is epoxy silane kh-560.
The antioxidant is beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) stearyl propionate.
The embodiment also provides a preparation method of the modified high-modulus asphalt, which comprises the following steps:
heating asphalt, and adding a composite modifier, mineral powder, a curing agent, a coupling agent and an antioxidant into the asphalt to perform heating and stirring to obtain the modified high-modulus asphalt.
Wherein the heating is to 170 ℃.
The heating and stirring were carried out by heating to 185℃and stirring at a stirring speed of 250r/min for 50min.
TABLE 1
As can be seen from Table 1, the modified high modulus asphalt prepared in examples 1 to 3 of the present invention has the advantages of high modulus, excellent rutting resistance and high aging resistance.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention, and are intended to be included within the scope of the appended claims and description.
Claims (10)
1. A modified high modulus asphalt characterized by: the modified high-modulus asphalt comprises the following raw material components in parts by weight: 80-90 parts of asphalt, 3-4 parts of composite modifier, 4-5 parts of mineral powder, 0.6-0.8 part of curing agent, 0.4-0.5 part of coupling agent and 0.3-0.5 part of antioxidant; the composite modifier comprises epoxy resin, phenolic resin and styrene-butadiene-styrene block copolymer.
2. The modified high modulus asphalt of claim 1, wherein: the asphalt is road petroleum asphalt, and the road petroleum asphalt is one or more of 70# road petroleum asphalt, 90# road petroleum asphalt and 110# A road petroleum asphalt.
3. The modified high modulus asphalt of claim 1, wherein: the epoxy resin is one or more of R139 and R144; the phenolic resin is one or more of 2112 and 2116; the styrene-butadiene-styrene block copolymer is one or more of SBS792 and SBS 796.
4. The modified high modulus asphalt of claim 1, wherein: the mineral powder is limestone mineral powder, and the mesh number of the limestone mineral powder is 800-1000 meshes.
5. The modified high modulus asphalt of claim 1, wherein: the antioxidant is beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) stearyl propionate.
6. The modified high modulus asphalt of claim 1, wherein: the curing agent is one or more of hexamethylenediamine, diethylenetriamine and triethylenetetramine.
7. The modified high modulus asphalt of claim 1, wherein: the coupling agent is one or more of epoxy silane kh-560 and r-amino propyl triethoxy silane.
8. A process for the preparation of a modified high modulus asphalt according to any of claims 1 to 7, characterized in that: the preparation method of the modified high-modulus asphalt comprises the following steps: heating asphalt, and adding a composite modifier, mineral powder, a curing agent, a coupling agent and an antioxidant into the asphalt to perform heating and stirring to obtain the modified high-modulus asphalt.
9. The method for preparing modified high modulus asphalt according to claim 8, wherein: the heating is to 160-180 ℃.
10. The method for preparing modified high modulus asphalt according to claim 8, wherein: the heating and stirring are heating to 180-190 ℃ and stirring for 50min at a stirring speed of 200-300 r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410060703.7A CN117924954A (en) | 2024-01-16 | 2024-01-16 | Modified high-modulus asphalt and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410060703.7A CN117924954A (en) | 2024-01-16 | 2024-01-16 | Modified high-modulus asphalt and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117924954A true CN117924954A (en) | 2024-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410060703.7A Pending CN117924954A (en) | 2024-01-16 | 2024-01-16 | Modified high-modulus asphalt and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117924954A (en) |
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- 2024-01-16 CN CN202410060703.7A patent/CN117924954A/en active Pending
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