CN101215124A - Preparation method for asphalt concrete with conduction function - Google Patents
Preparation method for asphalt concrete with conduction function Download PDFInfo
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- CN101215124A CN101215124A CNA200810046603XA CN200810046603A CN101215124A CN 101215124 A CN101215124 A CN 101215124A CN A200810046603X A CNA200810046603X A CN A200810046603XA CN 200810046603 A CN200810046603 A CN 200810046603A CN 101215124 A CN101215124 A CN 101215124A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—Bituminous materials, e.g. tar, pitch
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/90—Electrical properties
- C04B2111/94—Electrically conducting materials
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
Abstract
The invention relates to a process for preparing asphaltic concrete with conducting function, which is characterized in that the process includes the procedures of 1), preliminary treatment of aggregates, which means washing away the foreign matters of the steel slag with water. 2), raw materials preparation, which means that the percentage by weight of each component is that rough aggregates is 55%-80%, fine aggregates is 13%-30%, mineral filler is 7%-15%, the rough aggregates, fine aggregates and mineral filler are selected to reserve as aggregates, consumption of asphalt cement is 6%-8% of the weight of the aggregates, consumption of fabric stabilizer is 0.1%-0.5% of the gross weight of the aggregates and the asphalt cement, consumption of conducting material is 10-30% of the weight of the asphalt cement, and gradation design of SMA mixture is employed. 3), mixture blending, which means charging fractionally and blending multitime, the temperature is kept not lower 150 DEG C when molding. The preparing process has simple technique and low cost. The prepared asphaltic concrete has good conducting function and pavement using property.
Description
Technical field
The invention belongs to the Materials Science and Engineering field, be specifically related to a kind of preparation method with bituminous concrete of conducting function.
Background technology
Conducting concrete is the focus of material area research in recent years, and this concrete itself can conduct electricity and not need to bury underground senser element, and the structure of road pavement can not produce detrimentally affect.Can utilize the self-sensing ability of its strain, destruction, temperature.Be used for vibration control, traffic administration, load-carrying measurement, building safety of building structure etc.; Utilize electrocaloric effect to heat self simultaneously, this function can be widely used in road snow melt deicing.But existing research mainly concentrates on cement concrete material.Research report about conductive asphalt concrete is also less.
Conductive SMA mixture is to mix conductive paste material in stone mastic asphalt (SMA compound), makes it have good electric property.
Normal concrete is the poor conductor of electricity.Conducting concrete mainly is to conduct electricity by being in contact with one another of conductive paste material in the concrete at present.The conductive component that is used to make conducting concrete both at home and abroad mainly contains carbon fiber, Graphite Powder 99, carbon dust, coke, steel fiber and steel cuttings etc.But all there is the deficiency of self in these conductive paste materials.Existing discovering: carbon fiber is a kind of favorable conductive phase material, but carbon fiber costs an arm and a leg, and cost is too high, is difficult to be uniformly dispersed in concrete, and flocculation is agglomerating easily; Graphite Powder 99 also is a kind of favorable conductive phase material, and is influential to the performance of conducting concrete but the laminate structure of graphite causes adding graphite, also exists simultaneously to be difficult to finely dispersed problem; The conductivity that carbon dust, coke are confined to self to the concrete conductivity to improve effect obvious not as Graphite Powder 99, also the same with the Graphite Powder 99 problem of being uniformly dispersed that exists also has a significant impact concrete performance; Steel fiber and steel cuttings add in the concrete can improve its mechanical property and conductivity.But along with the prolongation of time, there are the phenomenon of surface passivation in steel fiber and steel cuttings in concrete, cause resistivity along with the prolongation of time obviously increases.Based on above problem, seek a kind of new conductive material and also just become the problem of Materials science worker's research.
Summary of the invention
The object of the present invention is to provide a kind of preparation method with bituminous concrete of conducting function, this preparation method's technology is simple, cheap, also has good pavement performance when prepared bituminous concrete has excellent conductive capability.
To achieve these goals, technical scheme of the present invention is: a kind of preparation method with bituminous concrete of conducting function is characterized in that it comprises the steps:
The pre-treatment of 1) gathering materials:
Earlier the slag water being carried out impurity cleans, slag drying after the cleaning, then dried slag is carried out fragmentation, the slag of choosing particle diameter and being after 4.75～13.2mm fragmentation is standby as coarse aggregate, it is standby as fine aggregate to choose the slag of particle diameter after less than the 4.75mm fragmentation, dried slag is finely ground to powder, and it is standby as mineral filler less than 0.075mm slag fine powder to get particle diameter;
2) preparation of raw material: the weight percent by each composition is respectively: coarse aggregate 55%～80%, and fine aggregate 13%～30%, mineral filler 7%～15%, it is standby as gathering materials to choose coarse aggregate, fine aggregate and mineral filler; The consumption of bituminous cements is 6%～8% of the weight of gathering materials; The consumption of fiber stabilizer is to gather materials and 0.1%～0.5% of bituminous cements gross weight; The consumption of conductive paste material is 5～30% of a bituminous cements weight; Adopt the grating design of SMA compound;
3) compound mix: earlier coarse aggregate and fine aggregate are heated to 175 ℃～185 ℃, add fiber stabilizer then, mix and stir 90S; Add 170 ℃ of hot bituminous cements, mix and stir 90S; Above again conductive paste material evenly being sprinkled upon, mix and stir 90S; Add mineral filler then, mix and stir the 90S moulding, keep temperature to be not less than 150 ℃ during moulding.
Described bituminous cements is SBS modifying asphalt or high-viscosity asphalt.
Described fiber stabilizer is mineral fibre, wood fibre or trevira.
Described conductive paste material is a Graphite Powder 99.
When fiber stabilizer adopted mineral fibre, consumption was to gather materials and 0.1～0.3% of bituminous cements gross weight; When adopting wood fibre, consumption is to gather materials and 0.3～0.5% of bituminous cements gross weight; When adopting trevira, consumption is to gather materials and 0.2～0.4% of bituminous cements gross weight.
The invention has the beneficial effects as follows:
1, turn waste into wealth, cheap.
Along with the slag on bulk deposition such as mountain has appearred in the great development of steel-making industry construction, these trade wastes have not only taken a large amount of land resources, and environment has been caused pollution in various degree.The phenomenon that earth and stone material lacks has appearred in the local highway construction that China has simultaneously.Slag be used for Road construction through handling, will obtain great economy and environmental benefit, not only to have solved some environment and occupation of land problem that slag brings well, and to have alleviated problem such as the deficiency of gathering materials in the road construction effectively.Save the cost cost greatly.
2, preparation method's technology is simple.
3, has excellent conducting performance.
Coarse aggregate, fine aggregate, mineral powder filling materials all adopt slag and slag pulverized powder among the present invention.Itself contain a large amount of unoxidized iron and Fe in the slag
2O
3, have excellent conducting performance.Therefore, slag in asphalt as also being a kind of conductive paste material when gathering materials.Adopt the grating design of SMA compound, be in contact with one another between the coarse aggregate, these slag coarse aggregates form conductive network in bituminous concrete.The pitch agate hoof of being made up of bituminous cements, slag pulverized powder, Graphite Powder 99, slag thin aggregate is filled in the coarse stuff space, plays bridge joint at the conductive network that forms originally, will further improve the conductivity of bituminous concrete.
4, pavement performance is good.
The slag quality is hard, surface irregularity, wear-resisting, grain composition shapeliness, and broken slag is multi-angular, has extremely strong lock knot power.Slag proportion is greater than general natural sandstone, than great anti-intensity and the effective weather resistance of rolling of having guaranteed the slag bituminous concrete, its internal friction embedding is squeezed power and is better than most of natural sandstone, and the internal friction embedding power of squeezing is to pass judgment on the important evidence of pavement material, the suitability of gathering materials.In addition, slag itself is alkalescence, and the genus polyporus structure has good viscosifying power with pitch; Adopt slag to prepare bituminous concrete and have good pavement performance.
Embodiment
In order to understand the present invention better, further illustrate content of the present invention below in conjunction with embodiment, but content of the present invention not only is confined to the following examples.
Embodiment 1:
A kind of preparation method with bituminous concrete of conducting function, it comprises the steps:
The pre-treatment of 1) gathering materials: used starting material: slag (Wuhan Steel Plant dispatch from the factory), crush values is 21, Los Angeles abrasion are 17:
Earlier the slag water being carried out impurity cleans, slag drying after the cleaning (drying by the fire more than the 5h in 105 ℃ of baking ovens), then dried slag is carried out fragmentation, choose particle diameter and be slag after 4.75～13.2mm fragmentation as coarse aggregate standby (iron-holder is 14%), it is standby as fine aggregate to choose the slag of particle diameter after less than the 4.75mm fragmentation, dried slag is finely ground to powder (hydrophilic coefficient≤1.0), and it is standby as mineral filler less than 0.075mm slag fine powder to get particle diameter;
Contain a large amount of impurity when slag is come out of the stove, these impurity are very big to the influence of the conductivity of bituminous concrete and pavement performance, at first these impurity will be cleaned up; Secondly, slag particle diameter when coming out of the stove is very irregular, can not satisfy the requirement of high-performance bituminous concrete, need require according to the grating of bituminous concrete slag crushing is become suitable size and shape; At last, slag belongs to porous material, with the pitch mix before must guarantee to gather materials dry just be unlikely to because of with the bituminous cohesive process in, because the volatilization of internal moisture, and cause gathering materials and the decline of agglutinate viscosifying power, slag must be placed on before using and dry by the fire more than the 5h in 105 ℃ of baking ovens;
2) preparation of raw material: a kind of bituminous concrete with conducting function, it by gather materials, fiber stabilizer, bituminous cements, conductive paste material form;
Weight percent by each composition is respectively: it is standby as gathering materials that coarse aggregate 70%, fine aggregate 20%, mineral filler 10% are chosen coarse aggregate, fine aggregate and mineral filler; The consumption of bituminous cements is 6.7% of the weight of gathering materials; The consumption of fiber stabilizer is to gather materials and 0.3% of bituminous cements gross weight; The consumption of conductive paste material is 20% of a bituminous cements weight; Adopt the grating design of SMA compound, see Table 1;
Table 1 formate gradation composition (gathering materials and conductive paste material)
| Aperture (mm) | 16 | 13.2 | 9.5 | 4.75 | 2.36 | 1.18 | 0.6 | 0.3 | 0.15 | 0.075 |
| Formate gradation composition (%) | 100.0 | 91.6 | 67.9 | 33.1 | 22.9 | 16.9 | 15.4 | 14.0 | 12.7 | 10.7 |
Described bituminous cements is the SBS modifying asphalt, 25 ℃ of penetration degrees 72,78 ℃ of softening temperatures (ring and ball method);
Described fiber stabilizer is trevira (an extra large river drop prestige);
Described conductive paste material is a Graphite Powder 99, crystalline flake graphite (crystalloid high-carbon), fixed carbon content 96%, specific conductivity 3.2 * 10
5Scm
-1:
3) compound mix: earlier coarse aggregate and fine aggregate are heated to 180 ℃, add fiber stabilizer then, mix and stir 90S (second); Add 170 ℃ of hot bituminous cements, mix and stir 90S; Above again conductive paste material evenly being sprinkled upon, mix and stir 90S; Add mineral filler then, mix and stir the 90S moulding, keep temperature to be not less than 150 ℃ during moulding;
Because conductivity and pavement performance that whether conductive paste material (Graphite Powder 99) and fiber stabilizer are uniformly dispersed and will have a strong impact on bituminous concrete, the present invention adopts the reinforced repeatedly method of mix of gradation; After mixing conductive paste material graphite, asphalt viscosity increases, and must keep temperature to be not less than 150 ℃ during moulding;
4) moulding: the Marshall compaction method shaping test piece is adopted in the marshal piece moulding, hits real 50 times the slag asphalt is two-sided; The moulding of rolling method is adopted in the rut test piece moulding, carries out three precompressed earlier, comes and goes then and rolls more than at least 12 times.
Performance perameter: resistivity is 60.8 Ω m, Marshall stability 8300 N, and 7725 times/mm of rut intensity, the cleavage strength ratio is 92.4%.
Embodiment 2:
A kind of preparation method with bituminous concrete of conducting function, it comprises the steps:
The pre-treatment of 1) gathering materials: used starting material: slag (Wuhan Steel Plant dispatch from the factory), crush values is 21, Los Angeles abrasion are 17:
Earlier the slag water being carried out impurity cleans, slag drying after the cleaning, then dried slag is carried out fragmentation, choose particle diameter and be slag after the 4.75-13.2mm fragmentation as coarse aggregate standby (iron-holder is 14%), it is standby as fine aggregate to choose the slag of particle diameter after less than the 4.75mm fragmentation, dried slag is finely ground to powder (hydrophilic coefficient≤1.0), and it is standby as mineral filler less than 0.075mm slag fine powder to get particle diameter;
Contain a large amount of impurity when slag is come out of the stove, these impurity are very big to the influence of the conductivity of bituminous concrete and pavement performance, at first these impurity will be cleaned up; Secondly, slag particle diameter when coming out of the stove is very irregular, can not satisfy the requirement of high-performance bituminous concrete, need require according to the grating of bituminous concrete slag crushing is become suitable size and shape; At last, slag belongs to porous material, with the pitch mix before must guarantee to gather materials dry just be unlikely to because of with the bituminous cohesive process in, because the volatilization of internal moisture, and cause gathering materials and the decline of agglutinate viscosifying power, slag must be placed on before using and dry by the fire more than the 5h in 105 ℃ of baking ovens;
2) preparation of raw material: a kind of bituminous concrete with conducting function, it by gather materials, fiber stabilizer, bituminous cements, conductive paste material form;
Weight percent by each composition is respectively: it is standby as gathering materials that coarse aggregate 55%, fine aggregate 30%, mineral filler 15% are chosen coarse aggregate, fine aggregate and mineral filler; The consumption of bituminous cements is 7.1% of the weight of gathering materials; The consumption of fiber stabilizer is to gather materials and 0.4% of bituminous cements gross weight; The consumption of conductive paste material is 15% of a bituminous cements weight; Adopt the grating design of SMA compound, see Table 2;
Table 2 formate gradation composition (gathering materials and conductive paste material)
| Aperture (mm) | 16 | 13.2 | 9.5 | 4.75 | 2.36 | 1.18 | 0.6 | 0.3 | 0.15 | 0.075 |
| Formate gradation composition (%) | 100.0 | 82.9 | 55.2 | 24.1 | 19.2 | 17.3 | 15.6 | 15.0 | 12.9 | 11.1 |
Described bituminous cements is a high-viscosity asphalt, 25 ℃ of penetration degrees 68,95 ℃ of softening temperatures (ring and ball method);
Described fiber stabilizer is a trevira;
Described conductive paste material is a Graphite Powder 99, crystalline flake graphite (crystalloid high-carbon), fixed carbon content 96%, specific conductivity 3.2 * 10
5Scm
-1:
3) compound mix: earlier coarse aggregate and fine aggregate are heated to 180 ℃, add fiber stabilizer then, mix and stir 90S (second); Add 170 ℃ of hot bituminous cements, mix and stir 90S; Above again conductive paste material evenly being sprinkled upon, mix and stir 90S; Add mineral filler then, mix and stir the 90S moulding, keep temperature to be not less than 150 ℃ during moulding;
Because conductivity and pavement performance that whether conductive paste material (Graphite Powder 99) and fiber stabilizer are uniformly dispersed and will have a strong impact on bituminous concrete, the present invention adopts the reinforced repeatedly method of mix of gradation; After mixing conductive paste material graphite, asphalt viscosity increases, and must keep temperature to be not less than 150 ℃ during moulding;
4) moulding: the Marshall compaction method shaping test piece is adopted in the marshal piece moulding, hits real 50 times the slag asphalt is two-sided; The moulding of rolling method is adopted in the rut test piece moulding, carries out three precompressed earlier, comes and goes then and rolls more than at least 12 times.Wherein asphalt content is 6.6% of an aggregate quality, and the graphite consumption is 15% of an asphalt quality.
Performance perameter: resistivity is 243.7 Ω m, Marshall stability 11000N, and 10500 times/mm of rut intensity, the cleavage strength ratio is 93.2%.
Embodiment 3:
A kind of preparation method with bituminous concrete of conducting function, it comprises the steps:
The pre-treatment of 1) gathering materials:
Earlier the slag water being carried out impurity cleans, slag drying after the cleaning, then dried slag is carried out fragmentation, the slag of choosing particle diameter and being after the 4.75-13.2mm fragmentation is standby as coarse aggregate, it is standby as fine aggregate to choose the slag of particle diameter after less than the 4.75mm fragmentation, dried slag is finely ground to powder, and it is standby as mineral filler less than 0.075mm slag fine powder to get particle diameter;
2) preparation of raw material: the weight percent by each composition is respectively: it is standby as gathering materials that coarse aggregate 80%, fine aggregate 5%, mineral filler 15% are chosen coarse aggregate, fine aggregate and mineral filler; The consumption of bituminous cements is 6% of the weight of gathering materials; The consumption of fiber stabilizer is to gather materials and 0.1% of bituminous cements gross weight; The consumption of conductive paste material is 10% of a bituminous cements weight; Adopt the grating design of SMA compound;
Table 3 formate gradation composition (gathering materials and conductive paste material)
| Aperture (mm) | 16 | 13.2 | 9.5 | 4.75 | 2.36 | 1.18 | 0.6 | 0.3 | 0.15 | 0.075 |
| Formate gradation composition (%) | 100.0 | 94.2 | 71.3 | 33.2 | 23.8 | 17.3 | 14.3 | 13.1 | 12.5 | 9.7 |
Described bituminous cements is the SBS modifying asphalt;
Described fiber stabilizer is a mineral fibre;
Described conductive paste material is a Graphite Powder 99;
3) compound mix: earlier coarse aggregate and fine aggregate are heated to 175 ℃, add fiber stabilizer then, mix and stir 90S (second); Add 170 ℃ of hot bituminous cements, mix and stir 90S; Above again conductive paste material evenly being sprinkled upon, mix and stir 90S; Add mineral filler then, mix and stir the 90S moulding, keep temperature to be not less than 150 ℃ during moulding.
4) moulding: the Marshall compaction method shaping test piece is adopted in the marshal piece moulding, hits real 50 times the slag asphalt is two-sided; The moulding of rolling method is adopted in the rut test piece moulding, carries out three precompressed earlier, comes and goes then and rolls more than at least 12 times.
Performance perameter: resistivity is 843.7 Ω m, Marshall stability 10100N, and 10700 times/mm of rut intensity, the cleavage strength ratio is 92.4%.
Embodiment 4:
A kind of preparation method with bituminous concrete of conducting function, it comprises the steps:
The pre-treatment of 1) gathering materials:
Earlier the slag water being carried out impurity cleans, slag drying after the cleaning, then dried slag is carried out fragmentation, the slag of choosing particle diameter and being after the 4.75-13.2mm fragmentation is standby as coarse aggregate, it is standby as fine aggregate to choose the slag of particle diameter after less than the 4.75mm fragmentation, dried slag is finely ground to powder, and it is standby as mineral filler less than 0.075mm slag fine powder to get particle diameter;
2) preparation of raw material: the weight percent by each composition is respectively: it is standby as gathering materials that coarse aggregate 55%, fine aggregate 38%, mineral filler 7% are chosen coarse aggregate, fine aggregate and mineral filler; The consumption of bituminous cements is 8% of the weight of gathering materials; The consumption of fiber stabilizer is to gather materials and 0.5% of bituminous cements gross weight; The consumption of conductive paste material is 5% of a bituminous cements weight; Adopt the grating design of SMA compound;
Table 4 formate gradation composition (gathering materials and conductive paste material)
| Aperture (mm) | 16 | 13.2 | 9.5 | 4.75 | 2.36 | 1.18 | 0.6 | 0.3 | 0.15 | 0.075 |
| Formate gradation composition (%) | 100.0 | 90.9 | 70.2 | 33.1 | 22.2 | 18.3 | 15.6 | 14.0 | 12.9 | 10.5 |
Described bituminous cements is a high-viscosity asphalt;
Described fiber stabilizer is a wood fibre;
Described conductive paste material is a Graphite Powder 99;
3) compound mix: earlier coarse aggregate and fine aggregate are heated to 185 ℃, add fiber stabilizer then, mix and stir 90S (second); Add 170 ℃ of hot bituminous cements, mix and stir 90S; Above again conductive paste material evenly being sprinkled upon, mix and stir 90S; Add mineral filler then, mix and stir the 90S moulding, keep temperature to be not less than 150 ℃ during moulding.
4) moulding: the Marshall compaction method shaping test piece is adopted in the marshal piece moulding, hits real 50 times the slag asphalt is two-sided; The moulding of rolling method is adopted in the rut test piece moulding, carries out three precompressed earlier, comes and goes then and rolls more than at least 12 times.
Performance perameter: resistivity is 6443.7 Ω m, Marshall stability 9300N, and 10800 times/mm of rut intensity, the cleavage strength ratio is 92.1%.
Claims (5)
1. the preparation method with bituminous concrete of conducting function is characterized in that it comprises the steps:
The pre-treatment of 1) gathering materials:
Earlier the slag water being carried out impurity cleans, slag drying after the cleaning, then dried slag is carried out fragmentation, the slag of choosing particle diameter and being after 4.75～13.2mm fragmentation is standby as coarse aggregate, it is standby as fine aggregate to choose the slag of particle diameter after less than the 4.75mm fragmentation, dried slag is finely ground to powder, and it is standby as mineral filler less than 0.075mm slag fine powder to get particle diameter;
2) preparation of raw material: the weight percent by each composition is respectively: it is standby as gathering materials that coarse aggregate 55%～80%, fine aggregate 13%～30%, mineral filler 7%～15% are chosen coarse aggregate, fine aggregate and mineral filler; The consumption of bituminous cements is 6%～8% of the weight of gathering materials; The consumption of fiber stabilizer is to gather materials and 0.1%～0.5% of bituminous cements gross weight; The consumption of conductive paste material is 10～30% of a bituminous cements weight; Adopt the grating design of SMA compound;
3) compound mix: earlier coarse aggregate and fine aggregate are heated to 175 ℃～185 ℃, add fiber stabilizer then, mix and stir 90S; Add 170 ℃ of hot bituminous cements, mix and stir 90S; Above again conductive paste material evenly being sprinkled upon, mix and stir 90S; Add mineral filler then, mix and stir the 90S moulding, keep temperature to be not less than 150 ℃ during moulding.
2. a kind of preparation method with bituminous concrete of conducting function according to claim 1 is characterized in that: described bituminous cements is SBS modifying asphalt or high-viscosity asphalt.
3. a kind of preparation method with bituminous concrete of conducting function according to claim 1 is characterized in that: described fiber stabilizer is mineral fibre, wood fibre or trevira.
4. a kind of preparation method with bituminous concrete of conducting function according to claim 1 is characterized in that: described conductive paste material is a Graphite Powder 99.
5. a kind of preparation method with bituminous concrete of conducting function according to claim 3 is characterized in that: when fiber stabilizer adopted mineral fibre, consumption was to gather materials and 0.1～0.3% of bituminous cements gross weight; When adopting wood fibre, consumption is to gather materials and 0.3～0.5% of bituminous cements gross weight; When adopting trevira, consumption is to gather materials and 0.2～0.4% of bituminous cements gross weight.
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| CN101948272A (en) * | 2010-09-25 | 2011-01-19 | 钱卫胜 | Rubber bituminous mixture partially using slag as coarse aggregate |
| CN102329104A (en) * | 2011-07-11 | 2012-01-25 | 江苏东交工程设计顾问有限公司 | Three-phase composite conductive anti-freezing asphalt mixture and preparation method thereof |
| CN102503327A (en) * | 2011-11-11 | 2012-06-20 | 浙江大学宁波理工学院 | Full-steel slag electrically-conductive concrete |
| CN101456705B (en) * | 2008-12-17 | 2012-10-03 | 马鞍山市国林建材有限公司 | Hydraulic bag concrete using industrial solid wastes |
| CN102786258A (en) * | 2012-08-31 | 2012-11-21 | 郑州大学 | Crack self-healing bituminous concrete and preparation method thereof |
| CN102815893A (en) * | 2012-09-04 | 2012-12-12 | 深圳市科中大交通建材有限公司 | Asphalt mixture with ice and snow removing function and preparation method thereof |
| CN104003656A (en) * | 2014-05-05 | 2014-08-27 | 广厦建设集团有限责任公司贵州分公司 | SMA mixture, and preparation method and application thereof |
| CN104944844A (en) * | 2015-06-30 | 2015-09-30 | 河南城建学院 | Composite asphalt pavement material for removing snow and paving method for composite asphalt pavement |
| CN105565708A (en) * | 2015-12-14 | 2016-05-11 | 上海中冶环境工程科技有限公司 | Building mastic gravel-asphalt mixture |
| CN106277934A (en) * | 2016-08-18 | 2017-01-04 | 安徽省双龙木质纤维素有限公司 | The wood fibre compound that a kind of highway asphalt material uses |
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