CN103496888B - Modified asphalt concrete capable of reducing temperature of road surface - Google Patents
Modified asphalt concrete capable of reducing temperature of road surface Download PDFInfo
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- CN103496888B CN103496888B CN201310513235.6A CN201310513235A CN103496888B CN 103496888 B CN103496888 B CN 103496888B CN 201310513235 A CN201310513235 A CN 201310513235A CN 103496888 B CN103496888 B CN 103496888B
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- 239000011384 asphalt concrete Substances 0.000 title claims abstract description 56
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 39
- 239000011707 mineral Substances 0.000 claims abstract description 39
- 239000000843 powder Substances 0.000 claims abstract description 37
- 239000007822 coupling agent Substances 0.000 claims abstract description 36
- 239000000203 mixture Substances 0.000 claims abstract description 30
- 239000010426 asphalt Substances 0.000 claims abstract description 28
- 229910052595 hematite Inorganic materials 0.000 claims abstract description 19
- 239000011019 hematite Substances 0.000 claims abstract description 19
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 claims abstract description 19
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims description 32
- 239000012256 powdered iron Substances 0.000 claims description 29
- 239000011295 pitch Substances 0.000 claims description 28
- 239000002994 raw material Substances 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 10
- 244000043261 Hevea brasiliensis Species 0.000 claims description 3
- 239000011294 coal tar pitch Substances 0.000 claims description 3
- 229920003052 natural elastomer Polymers 0.000 claims description 3
- 229920001194 natural rubber Polymers 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 12
- 229910052742 iron Inorganic materials 0.000 abstract description 8
- 238000011161 development Methods 0.000 abstract description 5
- 229910052598 goethite Inorganic materials 0.000 abstract 1
- AEIXRCIKZIZYPM-UHFFFAOYSA-M hydroxy(oxo)iron Chemical compound [O][Fe]O AEIXRCIKZIZYPM-UHFFFAOYSA-M 0.000 abstract 1
- 239000000463 material Substances 0.000 description 22
- 238000010438 heat treatment Methods 0.000 description 21
- 238000003756 stirring Methods 0.000 description 21
- 239000004567 concrete Substances 0.000 description 16
- 238000002360 preparation method Methods 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 238000010276 construction Methods 0.000 description 5
- 201000010099 disease Diseases 0.000 description 5
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 235000019738 Limestone Nutrition 0.000 description 2
- XGULBQUJRQPLOG-OOOULUNWSA-N O([C@@H]1[C@@H](C)[C@H](O)CC(=O)O[C@@H]([C@H](/C=C(\C)/C=C/C(=O)[C@H](C)C[C@@H]1CC=O)COCC=1C=CC=CC=1)CC)[C@@H]1O[C@H](C)[C@@H](O)[C@H](N(C)C)[C@H]1O Chemical compound O([C@@H]1[C@@H](C)[C@H](O)CC(=O)O[C@@H]([C@H](/C=C(\C)/C=C/C(=O)[C@H](C)C[C@@H]1CC=O)COCC=1C=CC=CC=1)CC)[C@@H]1O[C@H](C)[C@@H](O)[C@H](N(C)C)[C@H]1O XGULBQUJRQPLOG-OOOULUNWSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Landscapes
- Road Paving Structures (AREA)
Abstract
The invention provides modified asphalt concrete capable of reducing the temperature of a road surface. The modified asphalt concrete is prepared with, by weight, 100 parts of mineral aggregate, 3-9 parts of asphalt, 0.3-3 parts of iron mine powder and 0.01-0.06 part of coupling agents, wherein the iron mine powder is a mixture formed by hematite powder and goethite powder in a mass ratio of (0.5-2):1, the coupling agents are silane coupling agents or titanate coupling agents, and the gradation type of the mineral aggregate is GAC-13 type, or AM-13 type, or AC-13 type, or SMA-13 type, or OGFC-13 type, or superpave type. The modified asphalt concrete is capable of effectively reducing the temperature of the road surface, fundamentally solving the problem of wheel rutting on the asphalt road surface, prolonging the service life of the road surface, and reliving the urban heat island effect, and has high application value and wide development prospect.
Description
Technical field
The invention belongs to road bitumen technical field of concrete, be specifically related to a kind of modified asphalt concrete with road surface cooling function.
Background technology
Current China urban road surfaces structure is bituminous pavement substantially.The heat that common bituminous concrete pavement at high temperature absorbs almost all stores in sensible heat mode, pavement temperature is caused to rise fast and high-temperature duration is long, thus cause high temperature disease, as caused city " tropical island effect " and the decline of asphalt pavement structure supporting capacity under high temperature action, rut disease takes place frequently.How to develop novel cooling material, reduce the temperature of bituminous concrete pavement, thus improve the rutting resistance on road surface, increase pavement life, alleviating urban heat island effect is the sustainable development that faces of urban road from now on.
For alleviating urban heat island effect, reduce high temperature rut disease, the technical measures mainly taked at present for a change asphalt pavement structure " passive " formula, road surfaces smear cooling material " initiatively " formula, improve stability at high temperature of asphalt mixture etc.A large amount of case history shows that above measure fundamentally can not solve urban heat land effect and high temperature rut disease problem.Though have certain effect but also there is a lot of problem.Such as: the measure of traditional, passive raising asphalt use properties, although can extend pavement usage quality and work-ing life, reduce pavement temperature, cooling-down effect is limited.High tailored coating cost is high, poor durability, repeating utilization factor are low, complicated construction technique, contaminate environment and affect Pavement Condition etc.
Therefore, need a kind of novel bituminous concrete with road surface cooling function of research and development badly, effectively can reduce pavement temperature, improve the rutting resistance on road surface, increase pavement life, alleviating urban heat island effect.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned the deficiencies in the prior art, provides a kind of modified asphalt concrete with road surface cooling function.This bituminous concrete effectively can reduce pavement temperature, improves the rutting resistance on road surface, and increase pavement life, alleviating urban heat island effect, has wide using value and development prospect.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of modified asphalt concrete with road surface cooling function, is characterized in that, be made up of the raw material of following weight part: mineral aggregate 100 parts, pitch 3 ~ 9 parts, powdered iron ore 0.3 ~ 3 part, coupling agent 0.01 ~ 0.06 part; Described powdered iron ore be ground hematite and pyrrhosiderite powder in mass ratio (0.5 ~ 2): 1 mixture mixed, described coupling agent is silane coupling agent or titanate coupling agent, and the gradation types of described mineral aggregate is GAC-13 type, AM-13 type, AC-13 type, SMA-13 type, OGFC-13 type or superpave type.
Above-mentioned a kind of modified asphalt concrete with road surface cooling function, is characterized in that, be made up of the raw material of following weight part: mineral aggregate 100 parts, pitch 3 ~ 6.4 parts, powdered iron ore 0.4 ~ 1.6 part, coupling agent 0.02 ~ 0.05 part.
Above-mentioned a kind of modified asphalt concrete with road surface cooling function, is characterized in that, be made up of the raw material of following weight part: mineral aggregate 100 parts, pitch 4.8 parts, powdered iron ore 0.96 part, coupling agent 0.03 part.
Above-mentioned a kind of modified asphalt concrete with road surface cooling function, is characterized in that, described pitch is bi tumenf orr oad, coal-tar pitch, SBS modifying asphalt, SBR modifying asphalt or natural rubber modifying asphalt.
Above-mentioned a kind of modified asphalt concrete with road surface cooling function, is characterized in that, in described powdered iron ore, the mass ratio of ground hematite and pyrrhosiderite powder is 1: 1.
Above-mentioned a kind of modified asphalt concrete with road surface cooling function, it is characterized in that, the particle diameter of described ground hematite and pyrrhosiderite powder is all less than 0.075mm.
Described weight part can be gram, two, jin, kilogram, Dun Deng weight metering unit.
The preparation method that the present invention has the modified asphalt concrete of road surface cooling function is:
Step one, powdered iron ore added in coupling agent stir, be then placed in loft drier, be dry 2h ~ 3h under the condition of 160 DEG C ~ 180 DEG C in temperature, obtain modified powder;
Step 2, by asphalt heating to 140 DEG C ~ 170 DEG C, is heated to 180 DEG C ~ 200 DEG C gathering materials in mineral aggregate, then the pitch after heating was joined in gathering materials after heating and mix and stir 90s, finally add modified powder described in breeze in mineral aggregate and step one, continue to mix and stir 90s ~ 100s, obtain the modified asphalt concrete with road surface cooling function.
The construction technology that the present invention has the bituminous concrete of road surface cooling function is:
Step one, the earth removing road surface to be laid, foreign material etc., ensure the road surface to be laid not obvious defect such as polishing, deformation, check crack, spreading emulsified bitumen.
Step 2, be transported to working-yard under the condition of 160 DEG C ~ 180 DEG C in temperature by modified asphalt concrete of the present invention, note keeping temperature, and note the generation that prevents from emanating.
Step 3, pour modified asphalt concrete of the present invention into paver and pave, adopt street roller that the bituminous concrete paved is carried out compacting.
The present invention compared with prior art has the following advantages:
1, rhombohedral iron ore and pyrrhosiderite is added with in modified asphalt concrete of the present invention, along with the change of envrionment temperature, the internal stress of rhombohedral iron ore and pyrrhosiderite changes, spontaneous polarization strengthens, promote that the water-molecule dissociation in environment forms hydroxide ion, consume portion of energy simultaneously, water molecules in the hydroxide ion be decomposed to form and air and sour gas molecule generating negative ion under the effect of electric field, lost portion of energy simultaneously, temperature around bituminous concrete is changed thereupon, thus reaches the function reducing pavement temperature.Therefore, the present invention has the function of good reduction pavement temperature, effectively can reduce pavement temperature 5 DEG C ~ 10 DEG C.
2, be added with rhombohedral iron ore and pyrrhosiderite in modified asphalt concrete of the present invention, pyrrhosiderite and rhombohedral iron ore rich in mineral resources, wide material sources, be suitable for promoting the use of.
3, the preparation method of modified asphalt concrete of the present invention and construction technology simple and convenient, be suitable for scale operation.
4, modified asphalt concrete of the present invention effectively can reduce pavement temperature, improves the rutting resistance on road surface, and increase pavement life, alleviating urban heat island effect, has wide using value and development prospect.
Below in conjunction with embodiment, the present invention is described in further detail.
Embodiment
Mineral aggregate in modified asphalt concrete of the present invention meets the associated specifications of JTG-F40-2004 " standard specification for construction and acceptance of highway asphalt pavement ", mineral aggregate by gather materials and breeze form, the grouan wherein gathered materials for particle diameter 0.075mm ~ 16mm gathers materials, basalt aggregate, diabase gather materials or limestone aggregates, and breeze is the limestone powder that particle diameter is less than 0.075mm.
Embodiment 1
The present embodiment has the modified asphalt concrete of road surface cooling function, is made up of the raw material of following weight part: mineral aggregate 100 parts, pitch 4.8 parts, powdered iron ore 0.96 part, coupling agent 0.03 part; Described powdered iron ore is ground hematite and pyrrhosiderite powder 1: 1 mixture mixed in mass ratio; Described pitch is SBS modifying asphalt, and described coupling agent is Silane coupling agent KH550, and the particle diameter of described ground hematite and pyrrhosiderite powder is all less than 0.075mm, and the gradation types of described mineral aggregate is GAC-13 type (concrete gradation composition is in table 1).
The gradation composition of table 1GAC-13 type
The preparation method of the present embodiment modified asphalt concrete is:
Step one, powdered iron ore added in coupling agent stir, be then placed in loft drier, be dry 3h under the condition of 160 DEG C in temperature, obtain modified powder;
Step 2, by asphalt heating to 140 DEG C, gathering materials in mineral aggregate is heated to 200 DEG C, then the pitch after heating was joined in gathering materials after heating and mix and stir 90s, finally add modified powder described in breeze in mineral aggregate and step one, continue to mix and stir 100s, obtain the modified asphalt concrete with road surface cooling function.
Embodiment 2
The present embodiment has the modified asphalt concrete of road surface cooling function, is made up of the raw material of following weight part: mineral aggregate 100 parts, pitch 6.4 parts, powdered iron ore 1.6 parts, coupling agent 0.05 part; Described powdered iron ore is ground hematite and pyrrhosiderite powder 1: 1 mixture mixed in mass ratio; Described pitch is SBR modifying asphalt, and described coupling agent is silane coupling agent KH560, and the particle diameter of described ground hematite and pyrrhosiderite powder is all less than 0.075mm, and the gradation types of described mineral aggregate is AM-13 type (concrete gradation composition is in table 2).
The gradation composition of table 2AM-13 type
The preparation method of the present embodiment modified asphalt concrete is:
Step one, powdered iron ore added in coupling agent stir, be then placed in loft drier, be dry 2h under the condition of 160 DEG C in temperature, obtain modified powder;
Step 2, by asphalt heating to 170 DEG C, gathering materials in mineral aggregate is heated to 200 DEG C, then the pitch after heating was joined in gathering materials after heating and mix and stir 90s, finally add modified powder described in breeze in mineral aggregate and step one, continue to mix and stir 90s, obtain the modified asphalt concrete with road surface cooling function.
Embodiment 3
The present embodiment has the modified asphalt concrete of road surface cooling function, is made up of the raw material of following weight part: mineral aggregate 100 parts, pitch 3 parts, powdered iron ore 0.4 part, coupling agent 0.02 part; Described powdered iron ore is ground hematite and pyrrhosiderite powder 1: 1 mixture mixed in mass ratio; Described pitch is coal-tar pitch, and described coupling agent is titanate coupling agent TMC201, and the particle diameter of described ground hematite and pyrrhosiderite powder is all less than 0.075mm, and the gradation types of described mineral aggregate is AC-13 type (concrete gradation composition is in table 3).
The gradation composition of table 3AC-13 type
The preparation method of the present embodiment modified asphalt concrete is:
Step one, powdered iron ore added in coupling agent stir, be then placed in loft drier, be dry 2h under the condition of 160 DEG C in temperature, obtain modified powder;
Step 2, by asphalt heating to 170 DEG C, gathering materials in mineral aggregate is heated to 180 DEG C, then the pitch after heating was joined in gathering materials after heating and mix and stir 90s, finally add modified powder described in breeze in mineral aggregate and step one, continue to mix and stir 100s, obtain the modified asphalt concrete with road surface cooling function.
Embodiment 4
The present embodiment has the modified asphalt concrete of road surface cooling function, is made up of the raw material of following weight part: mineral aggregate 100 parts, pitch 9 parts, powdered iron ore 3 parts, coupling agent 0.06 part; Described powdered iron ore is ground hematite and pyrrhosiderite powder 2: 1 mixtures mixed in mass ratio; Described pitch is SBS modifying asphalt, and described coupling agent is titanate coupling agent TMC201, and the particle diameter of described ground hematite and pyrrhosiderite powder is all less than 0.075mm, and the gradation types of described mineral aggregate is SMA-13 type (concrete gradation composition is in table 4).
The gradation composition of table 4SMA-13 type
The preparation method of the present embodiment modified asphalt concrete is:
Step one, powdered iron ore added in coupling agent stir, be then placed in loft drier, be dry 2h under the condition of 180 DEG C in temperature, obtain modified powder;
Step 2, by asphalt heating to 140 DEG C, gathering materials in mineral aggregate is heated to 180 DEG C, then the pitch after heating was joined in gathering materials after heating and mix and stir 90s, finally add modified powder described in breeze in mineral aggregate and step one, continue to mix and stir 90s, obtain the modified asphalt concrete with road surface cooling function.
Embodiment 5
The present embodiment has the modified asphalt concrete of road surface cooling function, is made up of the raw material of following weight part: mineral aggregate 100 parts, pitch 3 parts, powdered iron ore 0.3 part, coupling agent 0.01 part; Described powdered iron ore is ground hematite and pyrrhosiderite powder 0.5: 1 mixture mixed in mass ratio; Described pitch is bi tumenf orr oad, and described coupling agent is titanate coupling agent TMC101, and the particle diameter of described ground hematite and pyrrhosiderite powder is all less than 0.075mm, and the gradation types of described mineral aggregate is OGFC-13 type (concrete gradation composition is in table 5).
The gradation composition of table 5OGFC-13 type
The preparation method of the present embodiment modified asphalt concrete is:
Step one, powdered iron ore added in coupling agent stir, be then placed in loft drier, be dry 2h under the condition of 160 DEG C in temperature, obtain modified powder;
Step 2, by asphalt heating to 140 DEG C, gathering materials in mineral aggregate is heated to 180 DEG C, then the pitch after heating was joined in gathering materials after heating and mix and stir 90s, finally add modified powder described in breeze in mineral aggregate and step one, continue to mix and stir 100s, obtain the modified asphalt concrete with road surface cooling function.
Embodiment 6
The present embodiment has the modified asphalt concrete of road surface cooling function, is made up of the raw material of following weight part: mineral aggregate 100 parts, pitch 5.6 parts, powdered iron ore 1.6 parts, coupling agent 0.03 part; Described powdered iron ore is ground hematite and pyrrhosiderite powder 1: 1 mixture mixed in mass ratio; Described pitch is natural rubber modifying asphalt, and described coupling agent is titanate coupling agent TMC101, and the particle diameter of described ground hematite and pyrrhosiderite powder is all less than 0.075mm, and the gradation types of described mineral aggregate is superpave type (concrete gradation composition is in table 6).
The gradation composition of table 6superpave type
The preparation method of the present embodiment modified asphalt concrete is:
Step one, powdered iron ore added in coupling agent stir, be then placed in loft drier, be dry 3h under the condition of 180 DEG C in temperature, obtain modified powder;
Step 2, by asphalt heating to 170 DEG C, gathering materials in mineral aggregate is heated to 200 DEG C, then the pitch after heating was joined in gathering materials after heating and mix and stir 90s, finally add modified powder described in breeze in mineral aggregate and step one, continue to mix and stir 90s, obtain the modified asphalt concrete with road surface cooling function.
According to the associated specifications of the Ministry of Communications ministerial standard JTG E20-2011 " highway engineering pitch and Asphalt Mixture Experiment code ", the performance of the embodiment of the present invention 1 to 6 modified asphalt concrete is verified by following test.
One, pavement performance test
Wheel tracking test, low-temperature bending test (-10 DEG C), indirect tensile test on frozen-thaw and immersion Marshall test are all carried out to the embodiment of the present invention 1 to 6 modified asphalt concrete, in order to test the pavement performance of modified asphalt concrete, and be analyzed with the asphalt concrete not adding rhombohedral iron ore and pyrrhosiderite, test-results is in table 7.
The pavement performance test data of table 7 modified asphalt concrete of the present invention
As known from Table 7, modified asphalt concrete of the present invention meets the related request of the Ministry of Communications ministerial standard JTGF40-2004 " standard specification for construction and acceptance of highway asphalt pavement ", the indexs such as its high-temperature behavior, low-temperature performance, water stabilizing, apparently higher than asphalt concrete, show that the pavement performance of bituminous concrete of the present invention is superior.
Two, rut plate temperature test
The employing embodiment of the present invention 1 to 6 modified asphalt concrete respectively preparation size is the rut plate of 30cm × 30cm × 5cm, under rut plate is positioned over outdoor environment simultaneously, the temperature on the surface of test rut plate, the temperature variation of simulation bituminous concrete pavement, and carry out performance comparison with the asphalt concrete not adding rhombohedral iron ore and pyrrhosiderite, test result is in table 8.
The rut plate temperature testing data of table 8 modified asphalt concrete of the present invention
As known from Table 8, modified asphalt concrete of the present invention significantly can reduce the surface temperature of bituminous pavement, thus effectively stop the diseases such as road surface high temperature rut to be formed, pavement performance is good, can effectively absorb a large amount of heats, can alleviating urban heat island effect, meet the feature of green ecological and Sustainable development.
The above is only preferred embodiment of the present invention, not imposes any restrictions the present invention.Every above embodiment is done according to invention technical spirit any simple modification, change and equivalence change, all still belong in the protection domain of technical solution of the present invention.
Claims (5)
1. there is a modified asphalt concrete for road surface cooling function, it is characterized in that, be made up of the raw material of following weight part: mineral aggregate 100 parts, pitch 3 ~ 9 parts, powdered iron ore 0.3 ~ 3 part, coupling agent 0.01 ~ 0.06 part; Described powdered iron ore be ground hematite and pyrrhosiderite powder in mass ratio (0.5 ~ 2): 1 mixture mixed, described coupling agent is silane coupling agent or titanate coupling agent, and the gradation types of described mineral aggregate is GAC-13 type, AM-13 type, AC-13 type, SMA-13 type, OGFC-13 type or superpave type; The particle diameter of described ground hematite and pyrrhosiderite powder is all less than 0.075mm.
2. a kind of modified asphalt concrete with road surface cooling function according to claim 1, is characterized in that, be made up of the raw material of following weight part: mineral aggregate 100 parts, pitch 3 ~ 6.4 parts, powdered iron ore 0.4 ~ 1.6 part, coupling agent 0.02 ~ 0.05 part.
3. a kind of modified asphalt concrete with road surface cooling function according to claim 2, is characterized in that, be made up of the raw material of following weight part: mineral aggregate 100 parts, pitch 4.8 parts, powdered iron ore 0.96 part, coupling agent 0.03 part.
4. a kind of modified asphalt concrete with road surface cooling function according to claim 1,2 or 3, is characterized in that, described pitch is bi tumenf orr oad, coal-tar pitch, SBS modifying asphalt, SBR modifying asphalt or natural rubber modifying asphalt.
5. a kind of modified asphalt concrete with road surface cooling function according to claim 1,2 or 3, is characterized in that, in described powdered iron ore, the mass ratio of ground hematite and pyrrhosiderite powder is 1: 1.
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| CN103819136B (en) * | 2014-01-22 | 2015-09-30 | 长安大学 | Thermoelectricity bituminous concrete and the power generation pavement based on this thermoelectricity bituminous concrete |
| CN103964754B (en) * | 2014-05-12 | 2015-11-18 | 桂林理工大学 | Improve the preparation method of the silicon modified asphalt compound of damp-heat area bituminous pavement property |
| CN114195428A (en) * | 2021-12-24 | 2022-03-18 | 上海浦东路桥(集团)有限公司 | Asphalt mixture with high heating efficiency and preparation method thereof |
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| CN101748673A (en) * | 2009-12-16 | 2010-06-23 | 长安大学 | Snow-melting and ice-breaking magnetic iron ore bituminous concrete surface layer and construction method thereof |
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| CN101786833A (en) * | 2009-12-28 | 2010-07-28 | 长安大学 | Method for preparing multifunctional mineral asphalt concrete pavement material |
| EP2216370A1 (en) * | 2009-02-06 | 2010-08-11 | Shell Internationale Research Maatschappij B.V. | Asphalt |
| CN102849990A (en) * | 2012-09-29 | 2013-01-02 | 长安大学 | Modified asphalt concrete with road surface cooling function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2562094B2 (en) * | 1992-05-27 | 1996-12-11 | 株式会社白石中央研究所 | Granular asphalt containing inorganic particles and method for producing the same |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2216370A1 (en) * | 2009-02-06 | 2010-08-11 | Shell Internationale Research Maatschappij B.V. | Asphalt |
| CN101748673A (en) * | 2009-12-16 | 2010-06-23 | 长安大学 | Snow-melting and ice-breaking magnetic iron ore bituminous concrete surface layer and construction method thereof |
| CN101774786A (en) * | 2009-12-28 | 2010-07-14 | 长安大学 | Slag asphalt concrete pavement material composition for microwave heating |
| CN101786833A (en) * | 2009-12-28 | 2010-07-28 | 长安大学 | Method for preparing multifunctional mineral asphalt concrete pavement material |
| CN102849990A (en) * | 2012-09-29 | 2013-01-02 | 长安大学 | Modified asphalt concrete with road surface cooling function |
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