CN105439498B - A kind of composite modified asphalt concrete of conductive energy and preparation method thereof - Google Patents
A kind of composite modified asphalt concrete of conductive energy and preparation method thereof Download PDFInfo
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- CN105439498B CN105439498B CN201510870471.2A CN201510870471A CN105439498B CN 105439498 B CN105439498 B CN 105439498B CN 201510870471 A CN201510870471 A CN 201510870471A CN 105439498 B CN105439498 B CN 105439498B
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- 239000002131 composite material Substances 0.000 title claims abstract description 108
- 239000011384 asphalt concrete Substances 0.000 title claims abstract description 72
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 56
- 239000011707 mineral Substances 0.000 claims abstract description 56
- 239000003381 stabilizer Substances 0.000 claims abstract description 45
- QXTCFDCJXWLNAP-UHFFFAOYSA-N sulfidonitrogen(.) Chemical compound S=[N] QXTCFDCJXWLNAP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000007822 coupling agent Substances 0.000 claims abstract description 37
- 239000002270 dispersing agent Substances 0.000 claims abstract description 37
- 239000000835 fiber Substances 0.000 claims abstract description 36
- 229920003227 poly(N-vinyl carbazole) Polymers 0.000 claims abstract description 36
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000010949 copper Substances 0.000 claims abstract description 35
- 229910052802 copper Inorganic materials 0.000 claims abstract description 35
- 239000010426 asphalt Substances 0.000 claims abstract description 27
- 239000003607 modifier Substances 0.000 claims abstract description 25
- 239000002994 raw material Substances 0.000 claims abstract description 20
- 239000011295 pitch Substances 0.000 claims description 74
- 239000000463 material Substances 0.000 claims description 27
- 239000000203 mixture Substances 0.000 claims description 26
- 238000003756 stirring Methods 0.000 claims description 24
- 239000000843 powder Substances 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 12
- ZDZYGYFHTPFREM-UHFFFAOYSA-N 3-[3-aminopropyl(dimethoxy)silyl]oxypropan-1-amine Chemical class NCCC[Si](OC)(OC)OCCCN ZDZYGYFHTPFREM-UHFFFAOYSA-N 0.000 claims description 11
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 11
- 239000005864 Sulphur Substances 0.000 claims description 11
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical group C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 9
- 229920000193 polymethacrylate Polymers 0.000 claims description 9
- 239000011734 sodium Substances 0.000 claims description 9
- 229910052708 sodium Inorganic materials 0.000 claims description 9
- 239000011294 coal tar pitch Substances 0.000 claims description 3
- UJOBWOGCFQCDNV-UHFFFAOYSA-N 9H-carbazole Chemical compound C1=CC=C2C3=CC=CC=C3NC2=C1 UJOBWOGCFQCDNV-UHFFFAOYSA-N 0.000 claims 2
- 244000025254 Cannabis sativa Species 0.000 claims 2
- 239000004698 Polyethylene Substances 0.000 claims 2
- -1 polyethylene Polymers 0.000 claims 1
- 229920000573 polyethylene Polymers 0.000 claims 1
- 239000004567 concrete Substances 0.000 abstract description 19
- 239000002322 conducting polymer Substances 0.000 abstract description 3
- 229920001940 conductive polymer Polymers 0.000 abstract description 3
- 230000009471 action Effects 0.000 abstract description 2
- 230000002787 reinforcement Effects 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 19
- 238000011056 performance test Methods 0.000 description 17
- 239000004793 Polystyrene Substances 0.000 description 7
- 229920002223 polystyrene Polymers 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
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- 239000005413 snowmelt Substances 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
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- 238000004140 cleaning Methods 0.000 description 1
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- 238000005345 coagulation Methods 0.000 description 1
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- 229910002804 graphite Inorganic materials 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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Landscapes
- Road Paving Structures (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides a kind of composite modified asphalt concrete of conductive energy, and preparation method thereof, in terms of parts by weight, it is made up of following raw material：100 parts of mineral aggregate, 4.0~6.0 parts of pitch, poly- 1~5 part of nitrogen sulfide, 0.1~0.9 part of polyphenylacetylene, 0.1~0.9 part of polyvinylcarbazole, 0.10~0.50 part of copper fiber, 0.05~0.25 part of stabilizer, 0.05~0.2 part of coupling agent, 0.05~0.2 part of dispersant.Composite modifier is prepared first, composite modified asphalt is then prepared, and is eventually adding copper fiber heat and is mixed the composite modified asphalt concrete for obtaining conductive energy.Poly- nitrogen sulfide is mixed in pitch, conducting polymer modified pitch is used, the good pavement performance of bituminous concrete has both been ensure that, the electric conductivity of bituminous concrete is improved again.Present invention polyphenylacetylene and polyvinylcarbazole plastify poly- nitrogen sulfide, it is preferably played electric conductivity after being mixed with pitch.Copper fiber is mixed, reinforcement and conducting bridge beam action can be played.
Description
Technical field
The invention belongs to road engineering material field, it is related to bituminous concrete, and in particular to a kind of conductive energy
Composite modified asphalt concrete and preparation method thereof.
Background technology
Bituminous paving is due to the advantages of smooth seamless, damping absorb sound, drive a vehicle comfortable, as topmost high class pavement shape
Formula.In severe cold winter, influenceed by rainfall, snowfall, bituminous paving surface freezes, have a strong impact on traffic safety, reduce road
Ability.Existing universal de-icing method is to spill the snow melt salt such as paving sodium chloride, calcium chloride in road surface, but these chemical reagent corrode
Property strong, major injury pavement structure, corrosion bridge floor reinforcing bar, and cause environmental pollution.To reduce the use of snow melt salt, its is reduced right
Road, the damage of bridge are, it is necessary to develop new road deicing or snow melting technology.In recent years, the electric conductivity of bituminous concrete is improved
Can, turn into road engineering study hotspot using the pyroelectric effect deicing or snow melting of conductive asphalt concrete.Existing achievement in research
Graphite powder, the conductive paste material such as carbon fiber is added usually into pitch to improve bituminous concrete electric conductivity, but graphite
Lubrication can weaken the caking property of pitch, reduce the intensity and durability of bituminous concrete, cause its pavement performance seriously to be disliked
Change.When the particle diameter of graphite powder is less than 0.075mm, graphite powder can play a part of part mineral powder filling materials, influence pitch coagulation
The mineral aggregate gradation composition and volume index of soil.The problem of carbon fiber is difficult to scattered in bituminous concrete preparation process limits it and mixed
Enter amount, it is impossible to reach electric conductivity use requirement.
The content of the invention
In view of the deficienciess of the prior art, it is an object of the present invention to provide a kind of conductive the compound of energy changes
Property bituminous concrete and preparation method thereof, while bituminous paving good pavement performance is ensured, its electric conductivity is improved, by it
Applied to bituminous paving deicing or snow melting etc., with great Research Significance.
In order to solve the above-mentioned technical problem, the present invention, which is adopted the following technical scheme that, is achieved：
A kind of composite modified asphalt concrete of conductive energy, including mineral aggregate and pitch, it is characterised in that：Also include
Poly- nitrogen sulfide, polyphenylacetylene, polyvinylcarbazole and copper fiber.
The present invention also has following distinguishing feature：
It is preferred that, poly- nitrogen sulfide, polyphenylacetylene, the number-average molecular weight of polyvinylcarbazole are all in 10000~50000 scopes
It is interior.
Specifically, in terms of parts by weight, being made up of following raw material：100 parts of mineral aggregate, 4.0~6.0 parts of pitch, poly- nitrogen sulfide
0.0450~0.2250 part, 0.0045~0.0405 part of polyphenylacetylene, 0.0045~0.0405 part of polyvinylcarbazole, copper fiber
0.10~0.50 part, 0.005~0.045 part of stabilizer, 0.005~0.045 part of coupling agent, 0.005~0.045 part of dispersant.
It is preferred that, in terms of parts by weight, it is made up of following raw material：100 parts of mineral aggregate, 4.5 parts of pitch, poly- nitrogen sulfide 0.135
Part, 0.0225 part of polyphenylacetylene, 0.0225 part of polyvinylcarbazole, 0.30 part of copper fiber, 0.025 part of stabilizer, coupling agent 0.025
Part, 0.025 part of dispersant.
Specifically, described stabilizer be FD-06 without sulphur stabilizer.
Specifically, described coupling agent is N-2 (aminoethyl) 3- aminopropyl trimethoxysilanes.
Specifically, described dispersant is sodium polymethacrylate.It is preferred that, the number-average molecular weight of sodium polymethacrylate
All in the range of 10000~100000.
Specifically, described pitch is bi tumenf orr oad, coal tar pitch, SBS modified pitch, PE modified pitch, SBR modifications
Pitch or fiber-like modified pitch.
A kind of preparation method of the composite modified asphalt concrete of conductive energy as described above, is specifically included following
Step：
Step 1: by poly- nitrogen sulfide, polyphenylacetylene, polyvinylcarbazole, stabilizer and coupling agent temperature be 120 DEG C~
It is well mixed under conditions of 180 DEG C, obtains composite modifier；
Melt, then add composite modifier Step 2: pitch is heated under conditions of temperature is 130 DEG C~170 DEG C
Enter in pitch, add dispersant, first with 800r/min~1000r/min speed low velocity shear 5min~15min, then with
2000r/min~5000r/min speed high speed shear 35min~50min, obtains composite modified asphalt；
Step 3: 180 DEG C~200 DEG C will be heated to gathering materials in mineral aggregate, then by composite modified asphalt, copper in step 2
Fiber add jointly heating after gather materials in mix and stir 90s, be eventually adding the miberal powder in mineral aggregate, continue to mix and stir 90s~100s, obtain
The composite modified asphalt concrete of conductive energy.
The gradation types of specific described mineral aggregate are AC-13 types, SMA-13 types or OGFC-13 types.
The present invention compared with prior art, has the following technical effect that：
(I) poly- nitrogen sulfide is due to special molecular structure, and itself has good electric conductivity.The present invention mixes in pitch
Enter poly- nitrogen sulfide, use conducting polymer modified pitch, both ensure that the good pavement performance of bituminous concrete, pitch is improved again
The electric conductivity of concrete.
(II) because poly- nitrogen sulfide is more stiff, present invention polyphenylacetylene and polyvinylcarbazole plastify poly- nitrogen sulfide, make
It can preferably play electric conductivity after being mixed with pitch.Polyphenylacetylene and polyvinylcarbazole are also good conductive organic matter.
These polymer are added in pitch, conductive mesh structure can be formed in pitch.
(III) copper fiber is mixed, reinforcement and conducting bridge beam action can be played, improves asphaltic concrete road performance, enters
One step strengthens the electric conductivity of bituminous concrete.
(IV) composite modified asphalt concrete preparation technology of the present invention is simple, available for bituminous paving cleaning snow in winter ice and
The fields such as pavement detection maintenance, are adapted to wide popularization and application.
Explanation is further explained in detail to the particular content of the present invention with reference to embodiments.
Embodiment
Specific embodiment of the invention given below is, it is necessary to which explanation is that the invention is not limited in implement in detail below
Example, all equivalents done on the basis of technical scheme each fall within protection scope of the present invention.
Embodiment 1：
The present embodiment provides a kind of composite modified asphalt concrete of conductive energy, in terms of parts by weight, by following
Raw material is made：100 parts of mineral aggregate, 4.5 parts of pitch, poly- 0.0450 part of nitrogen sulfide, 0.0045 part of polyphenylacetylene, polyvinylcarbazole
0.0045 part, 0.10 part of copper fiber, 0.005 part of stabilizer, 0.005 part of coupling agent, 0.005 part of dispersant.The present embodiment is adopted
Stabilizer is FD-06 without sulphur stabilizer, and coupling agent is N-2 (aminoethyl) 3- aminopropyl trimethoxysilanes, and dispersant is
Sodium polymethacrylate.Pitch is coal tar pitch, and the gradation types of mineral aggregate are AC-13 types (specific gradation composition is shown in Table 1).
The AC-13 type bituminous concrete mineral aggregate formate gradation compositions of table 1
The present embodiment it is conductive can the preparation method of composite modified asphalt concrete be：
Step 1: by poly- nitrogen sulfide, polyphenylacetylene, polyvinylcarbazole, stabilizer and coupling agent are in the bar that temperature is 135 DEG C
It is well mixed under part, obtains composite modifier.
Melted Step 2: pitch is heated under conditions of temperature is 140 DEG C, composite modifier is then added into pitch
In, dispersant is added, first with 800r/min speed low velocity shear 5min, then with 3500r/min speed high speed shear
35min, obtains composite modified asphalt.
Step 3: gathering materials in mineral aggregate is heated to 180 DEG C, it is then that composite modified asphalt, copper fiber in step 2 is common
Be added to heating after gather materials in mix and stir 90s, be eventually adding the miberal powder in mineral aggregate, continue to mix and stir 100s, obtain have conduction
The composite modified asphalt concrete of performance.
The performance test results of the composite modified asphalt concrete of the conductive energy of the present embodiment are shown in Table 4.
Embodiment 2：
The present embodiment provides a kind of composite modified asphalt concrete of conductive energy, in terms of parts by weight, by following
Raw material is made：100 parts of mineral aggregate, 4.5 parts of pitch, poly- 0.0675 part of nitrogen sulfide, 0.0090 part of polystyrene, polyvinylcarbazole
0.0090 part, 0.15 part of copper fiber, 0.010 part of stabilizer, 0.010 part of coupling agent, 0.010 part of dispersant.The present embodiment is adopted
Stabilizer is FD-06 without sulphur stabilizer, and coupling agent is N-2 (aminoethyl) 3- aminopropyl trimethoxysilanes, and dispersant is
Sodium polymethacrylate.Pitch is SBS modified pitch, and the gradation types of mineral aggregate are AC-13 types.
The present embodiment it is conductive can the preparation method of composite modified asphalt concrete be：
Step 1: by poly- nitrogen sulfide, polyphenylacetylene, polyvinylcarbazole, stabilizer and coupling agent are in the bar that temperature is 135 DEG C
It is well mixed under part, obtains composite modifier.
Melted Step 2: pitch is heated under conditions of temperature is 140 DEG C, composite modifier is then added into pitch
In, dispersant is added, first with 800r/min speed low velocity shear 8min, then with 3500r/min speed high speed shear
40min, obtains composite modified asphalt.
Step 3: gathering materials in mineral aggregate is heated to 180 DEG C, it is then that composite modified asphalt, copper fiber in step 2 is common
Be added to heating after gather materials in mix and stir 90s, be eventually adding the miberal powder in mineral aggregate, continue to mix and stir 100s, obtain have conduction
The composite modified asphalt concrete of performance.
The performance test results of the composite modified asphalt concrete of the conductive energy of the present embodiment are shown in Table 4.
Embodiment 3：
The present embodiment provides a kind of composite modified asphalt concrete of conductive energy, in terms of parts by weight, by following
Raw material is made：100 parts of mineral aggregate, 4.5 parts of pitch, poly- 0.0900 part of nitrogen sulfide, 0.0135 part of polystyrene, polyvinylcarbazole
0.0135 part, 0.20 part of copper fiber, 0.015 part of stabilizer, 0.015 part of coupling agent, 0.015 part of dispersant.The present embodiment is adopted
Stabilizer is FD-06 without sulphur stabilizer, and coupling agent is N-2 (aminoethyl) 3- aminopropyl trimethoxysilanes, and dispersant is
Sodium polymethacrylate.Pitch is PE modified pitch, and the gradation types of mineral aggregate are AC-13 types.
The present embodiment it is conductive can the preparation method of composite modified asphalt concrete be：
Step 1: by poly- nitrogen sulfide, polyphenylacetylene, polyvinylcarbazole, stabilizer and coupling agent are in the bar that temperature is 135 DEG C
It is well mixed under part, obtains composite modifier.
Melted Step 2: pitch is heated under conditions of temperature is 140 DEG C, composite modifier is then added into pitch
In, dispersant is added, first with 800r/min speed low velocity shear 10min, then with 3500r/min speed high speed shear
45min, obtains composite modified asphalt.
Step 3: gathering materials in mineral aggregate is heated to 180 DEG C, it is then that composite modified asphalt, copper fiber in step 2 is common
Be added to heating after gather materials in mix and stir 90s, be eventually adding the miberal powder in mineral aggregate, continue to mix and stir 100s, obtain have conduction
The composite modified asphalt concrete of performance.
The performance test results of the composite modified asphalt concrete of the conductive energy of the present embodiment are shown in Table 4.
Embodiment 4：
The present embodiment provides a kind of composite modified asphalt concrete of conductive energy, in terms of parts by weight, by following
Raw material is made：100 parts of mineral aggregate, 4.5 parts of pitch, poly- 0.1125 part of nitrogen sulfide, 0.0180 part of polystyrene, polyvinylcarbazole
0.0180 part, 0.25 part of copper fiber, 0.020 part of stabilizer, 0.020 part of coupling agent, 0.020 part of dispersant..The present embodiment is adopted
Stabilizer is FD-06 without sulphur stabilizer, and coupling agent is N-2 (aminoethyl) 3- aminopropyl trimethoxysilanes, and dispersant is
Sodium polymethacrylate.Pitch is SBR modified pitch, and for SM A-13 types, (specific gradation composition is shown in Table the gradation types of mineral aggregate
2)。
The SMA-13 type bituminous concrete mineral aggregate formate gradation compositions of table 2
The present embodiment it is conductive can the preparation method of composite modified asphalt concrete be：
Step 1: by poly- nitrogen sulfide, polyphenylacetylene, polyvinylcarbazole, stabilizer and coupling agent are in the bar that temperature is 160 DEG C
It is well mixed under part, obtains composite modifier.
Melted Step 2: pitch is heated under conditions of temperature is 170 DEG C, composite modifier is then added into pitch
In, dispersant is added, first with 1000r/min speed low velocity shear 5min, then with 4000r/min speed high speed shear
35min, obtains composite modified asphalt.
Step 3: gathering materials in mineral aggregate is heated to 200 DEG C, it is then that composite modified asphalt, copper fiber in step 2 is common
Be added to heating after gather materials in mix and stir 90s, be eventually adding the miberal powder in mineral aggregate, continue to mix and stir 100s, obtain have conduction
The composite modified asphalt concrete of performance.
The performance test results of the composite modified asphalt concrete of the conductive energy of the present embodiment are shown in Table 4.
Embodiment 5：
The present embodiment provides a kind of composite modified asphalt concrete of conductive energy, in terms of parts by weight, by following
Raw material is made：100 parts of mineral aggregate, 4.5 parts of pitch, poly- 0.135 part of nitrogen sulfide, 0.0225 part of polystyrene, polyvinylcarbazole
0.0225 part, 0.30 part of copper fiber, 0.025 part of stabilizer, 0.025 part of coupling agent, 0.025 part of dispersant.The present embodiment is adopted
Stabilizer is FD-06 without sulphur stabilizer, and coupling agent is N-2 (aminoethyl) 3- aminopropyl trimethoxysilanes, and dispersant is
Sodium polymethacrylate.Pitch is SBR modified pitch, and the gradation types of mineral aggregate are SMA-13 types.
The present embodiment it is conductive can the preparation method of composite modified asphalt concrete be：
Step 1: by poly- nitrogen sulfide, polyphenylacetylene, polyvinylcarbazole, stabilizer and coupling agent are in the bar that temperature is 160 DEG C
It is well mixed under part, obtains composite modifier.
Melted Step 2: pitch is heated under conditions of temperature is 170 DEG C, composite modifier is then added into pitch
In, dispersant is added, first with 1000r/min speed low velocity shear 8min, then with 4000r/min speed high speed shear
40min, composite modified asphalt.
Step 3: gathering materials in mineral aggregate is heated to 200 DEG C, it is then that composite modified asphalt, copper fiber in step 2 is common
Be added to heating after gather materials in mix and stir 90s, be eventually adding the miberal powder in mineral aggregate, continue to mix and stir 100s, obtain have conduction
The composite modified asphalt concrete of performance.
The performance test results of the composite modified asphalt concrete of the conductive energy of the present embodiment are shown in Table 4.
Embodiment 6：
The present embodiment provides a kind of composite modified asphalt concrete of conductive energy, in terms of parts by weight, by following
Raw material is made：100 parts of mineral aggregate, 4.5 parts of pitch, poly- 0.1575 part of nitrogen sulfide, 0.0270 part of styrene, polyvinylcarbazole 0.0270
Part, 0.20 part of copper fiber, 0.030 part of stabilizer, 0.030 part of coupling agent, 0.030 part of dispersant.It is steady that the present embodiment is used
It is FD-06 without sulphur stabilizer to determine agent, and coupling agent is N-2 (aminoethyl) 3- aminopropyl trimethoxysilanes, and dispersant is poly- methyl
PAA.Pitch is SBR modified pitch, and the gradation types of mineral aggregate are SMA-13 types.
The present embodiment it is conductive can the preparation method of composite modified asphalt concrete be：
Step 1: by poly- nitrogen sulfide, polyphenylacetylene, polyvinylcarbazole, stabilizer and coupling agent are in the bar that temperature is 160 DEG C
It is well mixed under part, obtains composite modifier.
Melted Step 2: pitch is heated under conditions of temperature is 170 DEG C, composite modifier is then added into pitch
In, dispersant is added, first with 1000r/min speed low velocity shear 10min, then with 4000r/min speed high speed shear
45min, obtains composite modified asphalt.
Step 3: gathering materials in mineral aggregate is heated to 200 DEG C, it is then that composite modified asphalt, copper fiber in step 2 is common
Be added to heating after gather materials in mix and stir 90s, be eventually adding the miberal powder in mineral aggregate, continue to mix and stir 100s, obtain have conduction
The composite modified asphalt concrete of performance.
The performance test results of the composite modified asphalt concrete of the conductive energy of the present embodiment are shown in Table 4.
Embodiment 7：
The present embodiment provides a kind of composite modified asphalt concrete of conductive energy, in terms of parts by weight, by following
Raw material is made：100 parts of mineral aggregate, 4.5 parts of pitch, poly- 0.1800 part of nitrogen sulfide, 0.0315 part of polystyrene, polyvinylcarbazole
0.0315 part, 0.40 part of copper fiber, 0.035 part of stabilizer, 0.035 part of coupling agent, 0.035 part of dispersant.The present embodiment is adopted
Stabilizer is FD-06 without sulphur stabilizer, and coupling agent is N-2 (aminoethyl) 3- aminopropyl trimethoxysilanes, and dispersant is
Sodium polymethacrylate.Pitch is bi tumenf orr oad, and for OGFC-13 types, (specific gradation composition is shown in Table the gradation types of mineral aggregate
3)。
The OGFC-13 type bituminous concrete mineral aggregate formate gradation compositions of table 3
The present embodiment it is conductive can the preparation method of composite modified asphalt concrete be：
Step 1: by poly- nitrogen sulfide, polyphenylacetylene, polyvinylcarbazole, stabilizer and coupling agent are in the bar that temperature is 160 DEG C
It is well mixed under part, obtains composite modifier.
Melted Step 2: pitch is heated under conditions of temperature is 140 DEG C, composite modifier is then added into pitch
In, dispersant is added, first with 1000r/min speed low velocity shear 10min, then with 4500r/min speed high speed shear
35min, obtains composite modified asphalt.
Step 3: gathering materials in mineral aggregate is heated to 180 DEG C, it is then that composite modified asphalt, copper fiber in step 2 is common
Be added to heating after gather materials in mix and stir 90s, be eventually adding the miberal powder in mineral aggregate, continue to mix and stir 100s, obtain have conduction
The composite modified asphalt concrete of performance.
The performance test results of the composite modified asphalt concrete of the conductive energy of the present embodiment are shown in Table 4.
Embodiment 8：
The present embodiment provides a kind of composite modified asphalt concrete of conductive energy, in terms of parts by weight, by following
Raw material is made：100 parts of mineral aggregate, 4 parts of pitch, poly- 0.2025 part of nitrogen sulfide, 0.0360 part of polystyrene, polyvinylcarbazole 0.0360
Part, 0.45 part of copper fiber, 0.040 part of stabilizer, 0.040 part of coupling agent, 0.040 part of dispersant.It is steady that the present embodiment is used
It is FD-06 without sulphur stabilizer to determine agent, and coupling agent is N-2 (aminoethyl) 3- aminopropyl trimethoxysilanes, and dispersant is poly- methyl
PAA.Pitch is bi tumenf orr oad, and the gradation types of mineral aggregate are OGFC-13 types.
The present embodiment it is conductive can the preparation method of composite modified asphalt concrete be：
Step 1: by poly- nitrogen sulfide, polyphenylacetylene, polyvinylcarbazole, stabilizer and coupling agent are in the bar that temperature is 160 DEG C
It is well mixed under part, obtains composite modifier.
Melted Step 2: pitch is heated under conditions of temperature is 140 DEG C, composite modifier is then added into pitch
In, dispersant is added, first with 1000r/min speed low velocity shear 10min, then with 4500r/min speed high speed shear
40min, obtains composite modified asphalt.
Step 3: gathering materials in mineral aggregate is heated to 180 DEG C, it is then that composite modified asphalt, copper fiber in step 2 is common
Be added to heating after gather materials in mix and stir 90s, be eventually adding the miberal powder in mineral aggregate, continue to mix and stir 100s, obtain have conduction
The composite modified asphalt concrete of performance.
The performance test results of the composite modified asphalt concrete of the conductive energy of the present embodiment are shown in Table 4.
Embodiment 9：
The present embodiment provides a kind of composite modified asphalt concrete of conductive energy, in terms of parts by weight, by following
Raw material is made：100 parts of mineral aggregate, 6 parts of pitch, poly- 0.225 part of nitrogen sulfide, 0.0405 part of polystyrene, polyvinylcarbazole 0.0405
Part, 0.50 part of copper fiber, 0.045 part of stabilizer, 0.045 part of coupling agent, 0.045 part of dispersant.It is steady that the present embodiment is used
It is FD-06 without sulphur stabilizer to determine agent, and coupling agent is N-2 (aminoethyl) 3- aminopropyl trimethoxysilanes, and dispersant is poly- methyl
PAA.Pitch is fiber-like modified pitch, and the gradation types of mineral aggregate are OGFC-13 types.
The present embodiment it is conductive can the preparation method of composite modified asphalt concrete be：
Step 1: by poly- nitrogen sulfide, polyphenylacetylene, polyvinylcarbazole, stabilizer and coupling agent are in the bar that temperature is 160 DEG C
It is well mixed under part, obtains composite modifier.
Melted Step 2: pitch is heated under conditions of temperature is 140 DEG C, composite modifier is then added into pitch
In, dispersant is added, first with 1000r/min speed low velocity shear 10min, then with 4500r/min speed high speed shear
45min, obtains composite modified asphalt.
Step 3: gathering materials in mineral aggregate is heated to 180 DEG C, it is then that composite modified asphalt, copper fiber in step 2 is common
Be added to heating after gather materials in mix and stir 90s, be eventually adding the miberal powder in mineral aggregate, continue to mix and stir 100s, obtain have conduction
The composite modified asphalt concrete of performance.
The performance test results of the composite modified asphalt concrete of the conductive energy of the present embodiment are shown in Table 4.
Comparative example 1：
This comparative example is same as Example 5, and wherein difference is：It is not added with modified asphalt concrete raw material composition
Polyphenylacetylene and polyvinylcarbazole.The performance test results of this comparative example modified asphalt concrete are shown in Table 4.
Comparative example 2：
This comparative example is same as Example 5, and wherein difference is：It is not added with modified asphalt concrete raw material composition
Polyvinylcarbazole.The performance test results of this comparative example modified asphalt concrete are shown in Table 4.
Comparative example 3：
This comparative example is same as Example 5, and wherein difference is：It is not added with modified asphalt concrete raw material composition
Polyphenylacetylene.The performance test results of this comparative example modified asphalt concrete are shown in Table 4.
Comparative example 4：
This comparative example is same as Example 1, and wherein difference is：It is not added with modified asphalt concrete raw material composition
Poly- nitrogen sulfide, polyphenylacetylene, polyvinylcarbazole, copper fiber.The performance test results of this comparative example modified asphalt concrete are shown in Table
4。
Comparative example 5：
This comparative example is same as Example 4, and wherein difference is：It is not added with modified asphalt concrete raw material composition
Poly- nitrogen sulfide, polyphenylacetylene, polyvinylcarbazole, copper fiber.The performance test results of this comparative example modified asphalt concrete are shown in Table
4。
Comparative example 6：
This comparative example is same as Example 7, and wherein difference is：It is not added with modified asphalt concrete raw material composition
Poly- nitrogen sulfide, polyphenylacetylene, polyvinylcarbazole, copper fiber.The performance test results of this comparative example modified asphalt concrete are shown in Table
4。
In order to verify that composite modified asphalt concrete of the present invention has good pavement performance and electric conductivity, according to《It is public
Road engineering pitch and Asphalt Mixture Experiment code》(JTJE20-2011) regulation carries out basic performance tests.According to standard
BT1410-2006, using YFT-2014 type Instrument Measuring Resistivity of Carbon Products, measures the body of bituminous concrete under 25 DEG C of normal environment conditions
Product resistivity.The specific test result of each embodiment bituminous concrete is as shown in table 4 below
The modified asphalt concrete the performance test results of the embodiments of the invention of table 4 and comparative example
As known from Table 4, high-temperature behavior, cryogenic property, water stabilizing of composite modified asphalt concrete of the present invention etc. refer to
Mark is satisfied by《Standard specification for construction and acceptance of highway asphalt pavement》(JTG F40-2004) related request, pavement performance is good.
Composite modified asphalt concrete electric conductivity of the present invention is good, and pitch can be obviously improved by mixing polymer and copper fiber
Concrete electric conductivity, within the specific limits, its electric conductivity increase with the increase of conducting polymer volume, work as polymer
When reaching certain proportioning with pitch, bituminous concrete electric conductivity is optimal.
Claims (8)
1. a kind of composite modified asphalt concrete of conductive energy, including mineral aggregate and pitch, it is characterised in that：Also include poly-
Nitrogen sulfide, polyphenylacetylene, polyvinylcarbazole and copper fiber；
In terms of parts by weight, it is made up of following raw material：100 parts of mineral aggregate, 4.0~6.0 parts of pitch, poly- nitrogen sulfide 0.0450~
0.2250 part, 0.0045~0.0405 part of polyphenylacetylene, 0.0045~0.0405 part of polyvinylcarbazole, copper fiber 0.10~0.50
Part, 0.005~0.045 part of stabilizer, 0.005~0.045 part of coupling agent, 0.005~0.045 part of dispersant；
The preparation method of the composite modified asphalt concrete of described conductive energy comprises the following steps：
Step 1: by poly- nitrogen sulfide, polyphenylacetylene, polyvinylcarbazole, stabilizer and coupling agent are 120 DEG C~180 DEG C in temperature
Under conditions of be well mixed, obtain composite modifier；
Melted Step 2: pitch is heated under conditions of temperature is 130 DEG C~170 DEG C, then composite modifier is added and dripped
In green grass or young crops, add dispersant, first with 800r/min~1000r/min speed low velocity shear 5min~15min, then with
2000r/min~5000r/min speed high speed shear 35min~50min, obtains composite modified asphalt；
Step 3: 180 DEG C~200 DEG C will be heated to gathering materials in mineral aggregate, then by composite modified asphalt, copper fiber in step 2
It is common add after heating gather materials in mix and stir 90s, be eventually adding the miberal powder in mineral aggregate, continue to mix and stir 90s~100s, had
The composite modified asphalt concrete of electric conductivity.
2. the composite modified asphalt concrete of conductive energy as claimed in claim 1, it is characterised in that：With parts by weight
Meter, is made up of following raw material：100 parts of mineral aggregate, 4.5 parts of pitch, poly- 0.135 part of nitrogen sulfide, 0.0225 part of polyphenylacetylene, polyethylene
0.0225 part of carbazole, 0.30 part of copper fiber, 0.025 part of stabilizer, 0.025 part of coupling agent, 0.025 part of dispersant.
3. the composite modified asphalt concrete of the conductive energy as described in claim 1 to 2 any claim, its feature
It is：Described stabilizer is FD-06 without sulphur stabilizer.
4. the composite modified asphalt concrete of the conductive energy as described in claim 1 to 2 any claim, its feature
It is：Described coupling agent is N-2 (aminoethyl) 3- aminopropyl trimethoxysilanes.
5. the composite modified asphalt concrete of the conductive energy as described in claim 1 to 2 any claim, its feature
It is：Described dispersant is sodium polymethacrylate.
6. the composite modified asphalt concrete of the conductive energy as described in claim 1 to 2 any claim, its feature
It is：Described pitch is bi tumenf orr oad, coal tar pitch, SBS modified pitch, PE modified pitch, SBR modified pitch or fiber
Class modified pitch.
7. a kind of composite modified asphalt concrete of conductive energy as described in claim 1 to 2 any claim
Preparation method, it is characterised in that：Specifically include following steps：
Step 1: by poly- nitrogen sulfide, polyphenylacetylene, polyvinylcarbazole, stabilizer and coupling agent are 120 DEG C~180 DEG C in temperature
Under conditions of be well mixed, obtain composite modifier；
Melted Step 2: pitch is heated under conditions of temperature is 130 DEG C~170 DEG C, then composite modifier is added and dripped
In green grass or young crops, add dispersant, first with 800r/min~1000r/min speed low velocity shear 5min~15min, then with
2000r/min~5000r/min speed high speed shear 35min~50min, obtains composite modified asphalt；
Step 3: 180 DEG C~200 DEG C will be heated to gathering materials in mineral aggregate, then by composite modified asphalt, copper fiber in step 2
It is common add after heating gather materials in mix and stir 90s, be eventually adding the miberal powder in mineral aggregate, continue to mix and stir 90s~100s, had
The composite modified asphalt concrete of electric conductivity.
8. preparation method as claimed in claim 7, it is characterised in that：The gradation types of described mineral aggregate are AC-13 types, SMA-
13 types or OGFC-13 types.
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| CN106746924A (en) * | 2016-11-22 | 2017-05-31 | 长安大学 | A kind of conductive asphalt concrete and preparation method thereof |
| CN107417173A (en) * | 2017-07-28 | 2017-12-01 | 长安大学 | A kind of conductive asphalt concrete |
| CN108046631B (en) * | 2017-12-15 | 2020-06-05 | 上海宝田新型建材有限公司 | High-performance conductive concrete admixture based on ironmaking fly ash and preparation method thereof |
| CN108046700A (en) * | 2017-12-15 | 2018-05-18 | 上海宝田新型建材有限公司 | Large volume conducting concrete based on ironmaking dedusting ash |
| CN108033700B (en) * | 2017-12-15 | 2020-06-05 | 上海宝田新型建材有限公司 | High-performance conductive concrete special-purpose admixture and preparation method thereof |
| CN108033736A (en) * | 2017-12-15 | 2018-05-15 | 上海宝田新型建材有限公司 | A kind of high-performance conductive concrete |
| CN108164188B (en) * | 2018-01-19 | 2021-11-09 | 长沙理工大学 | Electric heating conduction type asphalt concrete and preparation method thereof |
| CN108484093A (en) * | 2018-05-17 | 2018-09-04 | 成都市容德建筑劳务有限公司 | Build concrete |
| CN109762350A (en) * | 2018-12-19 | 2019-05-17 | 青岛科凯达橡塑有限公司 | A kind of conductive asphalt modifying agent and preparation method thereof |
| CN109610261A (en) * | 2018-12-29 | 2019-04-12 | 苏州科技大学 | A kind of modified asphalt mixture road surface and preparation method |
| CN112110681A (en) * | 2020-09-24 | 2020-12-22 | 华北水利水电大学 | Conductive concrete casting material and preparation method thereof |
| CN114436569B (en) * | 2022-03-10 | 2022-10-11 | 河南金欧特实业集团股份有限公司 | Asphalt cold-mixing repairing composite material and preparation method thereof |
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| CN103553442A (en) * | 2013-10-26 | 2014-02-05 | 长安大学 | Modified bituminous concrete with cooling and emission-reducing functions |
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| CN101485239A (en) * | 2006-07-04 | 2009-07-15 | 3M创新有限公司 | Electromagnetic wave shielding gasket having elasticity and adhesiveness |
| CN103553442A (en) * | 2013-10-26 | 2014-02-05 | 长安大学 | Modified bituminous concrete with cooling and emission-reducing functions |
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