CN112390568A - Asphalt concrete admixture capable of lowering pavement freezing point and preparation method thereof - Google Patents
Asphalt concrete admixture capable of lowering pavement freezing point and preparation method thereof Download PDFInfo
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- CN112390568A CN112390568A CN202011063991.XA CN202011063991A CN112390568A CN 112390568 A CN112390568 A CN 112390568A CN 202011063991 A CN202011063991 A CN 202011063991A CN 112390568 A CN112390568 A CN 112390568A
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- asphalt
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- diatomite
- methyltriethoxysilane
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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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Abstract
The invention discloses an asphalt concrete admixture capable of reducing the freezing point of a pavement and a preparation method thereof, which comprises the steps of taking limestone slag and magnesium oxide, adding deionized water, adding glacial acetic acid, cooling to room temperature, filtering to obtain filtrate, taking diatomite, filling the diatomite into a crusher for crushing, adding sieved diatomite powder into the filtrate, adding methyltriethoxysilane, performing ultrasonic dispersion by 300W, filling into a rotary evaporator for evaporation, grinding in a mortar, obtaining an anti-freezing agent, taking limestone and rock, crushing, filling into a vibrating screen machine, respectively screening limestone and rock macadam with different particle sizes, filling the macadam into a mixer, obtaining asphalt aggregate sandstone, taking petroleum asphalt, adding desulfurized rubber powder, adding mineral powder, adding an anti-freezing agent and rubber particles, obtaining the anti-freezing asphalt mixture, wherein the durability of the anti-freezing asphalt mixture is good, the frictional force of the road surface can be increased.
Description
Technical Field
The invention relates to the field of asphalt concrete, in particular to an asphalt concrete admixture capable of reducing a pavement freezing point and a preparation method thereof.
Background
Bitumen currently refers to a solid or semi-solid viscous mass of black to dark brown color, containing a mixture of certain minerals. The bitumen used by man is mainly natural bitumen and petroleum bitumen obtained from crude oil refining, and its main components are the same, specifically it is made up of various hydrocarbon substances and hydrocarbon derivatives soluble in carbon disulfide, and the bitumen is dark brown or black semisolid substance.
When the air temperature is lower than 0 ℃ and the air is humid, the prior asphalt concrete pavement is easy to form thin ice due to frosting, so that the friction force of the pavement is rapidly reduced, and traffic accidents are easily caused.
Disclosure of Invention
The invention aims to provide an asphalt concrete admixture capable of lowering the freezing point of a pavement and a preparation method thereof, and aims to solve the technical problems that when the temperature is lower than 0 ℃ and air is moist, the asphalt concrete pavement is easy to form thin ice on the pavement due to frosting, so that the friction force of the pavement is rapidly reduced, and traffic accidents are easily caused in the prior art.
In order to achieve the purpose, the preparation method of the asphalt concrete capable of reducing the freezing point of the pavement comprises the following steps;
dissolving carbide slag and magnesium oxide in deionized water, adding glacial acetic acid, and stirring to obtain a filtrate;
crushing diatomite, adding the crushed diatomite into the filtrate, stirring, adding methyltriethoxysilane, performing ultrasonic dispersion, and then putting into a rotary evaporator for evaporation and drying to obtain an anti-freezing ice agent;
crushing limestone, then transferring the crushed limestone into a vibrating screen to screen coarse aggregates and fine aggregates, and uniformly mixing the coarse aggregates, the fine aggregates, asphalt and mineral powder in a mixer to obtain asphalt aggregates;
placing the nano-scale titanium dioxide in a constant-temperature drying box for drying treatment to remove free water in the nano-scale titanium dioxide;
shearing and dispersing the dewatered titanium dioxide and the asphalt aggregate in a high-speed shearing disperser until the asphalt aggregate is uniform and stable;
and (3) softening the asphalt aggregate, adding the desulfurized rubber powder, cooling, adding the anti-freezing agent and the rubber particles, and stirring to obtain the anti-freezing asphalt mixture.
Wherein, after the diatomite is crushed, adding the diatomite into the filtrate for stirring, then adding the methyltriethoxysilane, after ultrasonic dispersion, putting the mixture into a rotary evaporator for evaporation and drying to obtain the anti-freezing agent:
and crushing diatomite, sieving the crushed diatomite with a 50-mesh sieve, stirring the filtrate for 30 minutes, adding methyltriethoxysilane, performing ultrasonic dispersion for 20 minutes, putting the mixture into a rotary evaporator for evaporation drying, and grinding the mixture and sieving the ground mixture with a 80-mesh sieve to obtain the anti-icing agent.
Wherein, after limestone is crushed, the crushed limestone is transferred into a vibrating screen machine to screen coarse aggregates and fine aggregates:
and (3) putting the limestone into a jaw crusher for primary crushing, transferring the crushed limestone into a disc crusher for secondary crushing, and finally transferring the crushed limestone into a vibrating screen machine for screening coarse aggregates and fine aggregates.
Wherein, the nano-scale titanium dioxide is placed in a constant-temperature drying oven for drying treatment, and free water in the nano-scale titanium dioxide is removed:
the temperature in the constant temperature drying oven was stabilized at 150 ℃.
Wherein, the titanium dioxide and the asphalt aggregate after dewatering are sheared and dispersed in a high-speed shearing disperser until the asphalt aggregate is uniform and stable:
and (3) shearing and dispersing the titanium dioxide and the asphalt aggregate after the water removal at the room temperature of 24-26 ℃ for 30 minutes at the speed of 7500 rpm by using a high-speed shearing dispersion machine, so that the asphalt aggregate is uniform and stable.
Wherein, adding the desulfurized rubber powder after softening the asphalt aggregate, adding the anti-freezing agent and the rubber particles after cooling, and stirring to obtain the anti-freezing asphalt mixture:
heating and softening asphalt aggregate at 140 ℃ for 30 minutes, adding desulfurized rubber powder, continuously heating to 190 ℃, stirring for 10 minutes, adding the asphalt aggregate, stirring for 20 minutes, cooling to 80 ℃, adding an anti-freezing agent and rubber particles, and stirring for 40 minutes to obtain the anti-freezing asphalt mixture.
An asphalt concrete admixture capable of lowering the freezing point of a pavement is prepared from the following raw materials in parts by weight:
100-200 g of carbide slag, 20-40 g of magnesium oxide, 120-240 g of glacial acetic acid, 30-50 g of diatomite, 10-20 g of methyltriethoxysilane, 80-100 g of petroleum asphalt, 12-15 g of desulfurized rubber powder, 500-600 g of mineral powder, 5-10 g of anti-freezing agent and 2-3 g of rubber particles.
100g of carbide slag, 20g of magnesium oxide, 120g of glacial acetic acid, 30g of diatomite, 10g of methyltriethoxysilane, 80g of petroleum asphalt, 12g of desulfurized rubber powder, 500g of mineral powder, 5g of anti-freezing agent and 2g of rubber particles are taken.
150g of carbide slag, 30g of magnesium oxide, 180g of glacial acetic acid, 40g of diatomite, 15g of methyltriethoxysilane, 90g of petroleum asphalt, 13g of desulfurized rubber powder, 550g of mineral powder, 8g of anti-freezing agent and 2g of rubber particles are taken.
200g of carbide slag, 40g of magnesium oxide, 240g of glacial acetic acid, 50g of diatomite, 20g of methyltriethoxysilane, 100g of petroleum asphalt, 15g of desulfurized rubber powder, 600g of mineral powder, 10g of anti-freezing agent and 3g of rubber particles are taken.
The invention relates to an asphalt concrete admixture capable of reducing the freezing point of a pavement and a preparation method thereof, which is prepared by adding carbide slag and magnesium oxide into deionized water, adding glacial acetic acid, cooling to room temperature, filtering to obtain filtrate, pulverizing diatomaceous earth in pulverizer, adding sieved diatomaceous earth powder into the filtrate, adding methyl triethoxysilane, ultrasonic dispersing with 300W, evaporating to dryness in a rotary evaporator, grinding in a mortar to obtain anticoagulant icer, pulverizing limestone, and transferring the crushed limestone into a vibrating screen machine, respectively screening limestone crushed stones with different particle sizes, filling the crushed stones into a mixer to obtain asphalt aggregate gravel, taking petroleum asphalt, adding desulfurized rubber powder, adding mineral powder, adding an anti-freezing agent and rubber particles to obtain an anti-freezing asphalt mixture, wherein the anti-freezing asphalt mixture has good durability and can increase the friction and friction force of a road surface.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of the method for preparing asphalt concrete capable of lowering the freezing point of a pavement according to the present invention.
FIG. 2 is a comparison of data for an asphalt mixture of the present invention that is capable of depressing the freezing point of a roadway surface.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1, the present invention provides an asphalt concrete admixture capable of lowering the freezing point of a road surface, comprising the following steps;
s101: dissolving carbide slag and magnesium oxide in deionized water, adding glacial acetic acid, and stirring to obtain a filtrate;
in the present embodiment, the calcium magnesium acetate snow-melting agent is prepared by using calcium carbide slag as a calcium source to react with magnesium oxide and then adding glacial acetic acid, and is a relatively preferable snow-melting agent because the calcium magnesium acetate snow-melting agent has low corrosiveness to the reinforcing steel bars, is less corrosive than salt, and reduces the corrosion of the reinforcing steel bars by using calcium magnesium acetate on the reinforcing steel bars which have been corroded by salt.
S102: crushing diatomite, sieving with a 50-mesh sieve, stirring the filtrate for 30 minutes, adding methyltriethoxysilane, performing ultrasonic dispersion for 20 minutes, putting into a rotary evaporator for evaporation drying, and grinding and sieving with a 80-mesh sieve to obtain an anti-freezing agent;
in the embodiment, the calcium-magnesium acetate snow-melting agent is loaded on the surface of diatomite for hydrophobic treatment to prepare the anti-freezing agent, the anti-freezing agent can be effectively filled in the asphalt mixture, the freezing point of the pavement can be effectively reduced, the pavement icing is prevented, the long-acting pavement anti-freezing function is realized, the pavement management and maintenance cost in winter is reduced, meanwhile, the diatomite can effectively slow down the release of the calcium-magnesium acetate snow-melting agent, so that the anti-freezing agent can be uniformly released within the service life range of the pavement, and the durability is good.
S103: crushing limestone, then transferring the crushed limestone into a vibrating screen to screen coarse aggregates and fine aggregates, and uniformly mixing the coarse aggregates, the fine aggregates, asphalt and mineral powder in a mixer to obtain asphalt aggregates;
in the embodiment, the approximately cubic rubber particles are tightly embedded and squeezed between the mixture and the rubber particles and between the mixture and the stone, so that the road surface friction is increased, and the structure of the compacted mixture is stable.
S1031: putting the limestone into a jaw crusher for primary crushing, then transferring the crushed limestone into a disc crusher for secondary crushing, and finally transferring the crushed limestone into a vibrating screen machine for screening out coarse aggregates and fine aggregates;
in the embodiment, coarse aggregates and fine aggregates meeting the grading requirement are obtained by mixing coarse aggregates and fine aggregates of limestone according to the SMA-13 grading requirement and separating sand from stone in a vibrating screen machine.
S104: placing the nano-scale titanium dioxide in a constant-temperature drying oven for drying treatment, wherein the temperature in the constant-temperature drying oven is stabilized at 150 ℃, and removing free water in the constant-temperature drying oven;
in the embodiment, titanium dioxide is dried in a constant-temperature drying oven at 150 ℃ and then enters the asphalt aggregate, and the titanium dioxide can absorb partial sunlight, so that the temperature of the asphalt aggregate is increased, the ice on the pavement can be rapidly melted, and the friction force of the pavement is increased.
S105: shearing and dispersing the titanium dioxide and the asphalt aggregate after water removal at the room temperature of 24-26 ℃ for 30 minutes at the speed of 7500 r/min by using a high-speed shearing dispersion machine, wherein the asphalt aggregate is uniform and stable;
in this embodiment, the dewatered titanium dioxide is sheared with the asphalt aggregate at a rate of 7500 revolutions per minute to stabilize the properties of the asphalt aggregate.
S106: heating and softening asphalt aggregate at 140 ℃ for 30 minutes, adding desulfurized rubber powder, continuously heating to 190 ℃, stirring for 10 minutes, adding the asphalt aggregate, stirring for 20 minutes, cooling to 80 ℃, adding an anti-freezing agent and rubber particles, and stirring for 40 minutes to obtain the anti-freezing asphalt mixture.
In the embodiment, the nearly cubic rubber particles are tightly embedded and squeezed among the mixture, the rubber particles and the stone, so that the road surface friction is enhanced, the structure of the compacted mixture is stable, and the rubber particles bear stronger pressure.
Referring to fig. 2, an asphalt concrete admixture capable of lowering the freezing point of a pavement is prepared from the following raw materials in parts by weight:
100-200 g of carbide slag, 20-40 g of magnesium oxide, 120-240 g of glacial acetic acid, 30-50 g of diatomite, 10-20 g of methyltriethoxysilane, 80-100 g of petroleum asphalt, 12-15 g of desulfurized rubber powder, 500-600 g of mineral powder, 5-10 g of anti-freezing agent and 2-3 g of rubber particles.
Example 1:
further, 100g of carbide slag, 20g of magnesium oxide, 120g of glacial acetic acid, 30g of diatomite, 10g of methyltriethoxysilane, 80g of petroleum asphalt, 12g of desulfurized rubber powder, 500g of mineral powder, 5g of anti-freezing agent and 2g of rubber particles are taken.
In this embodiment: adding 100g of carbide slag and 20g of magnesium oxide into 400mL of deionized water, adding 120g of glacial acetic acid, cooling to room temperature, filtering to obtain a filtrate, adding 30g of diatomite into a pulverizer for pulverizing, adding sieved diatomite powder into the filtrate, adding 10g of methyltriethoxysilane, performing ultrasonic dispersion by 300W, adding into a rotary evaporator, evaporating to dryness at 125 ℃, grinding into a mortar, sieving with an 80-mesh sieve to obtain an anti-freezing agent, adding limestone into a jaw crusher for primary pulverization, crushing into a disc crusher for secondary pulverization, transferring into a vibrating screen machine, respectively screening limestone gravels with different particle sizes, adding the gravels into a mixer, mixing the gravels according to the SMA-13 grading requirement to obtain asphalt aggregate sandstone, adding 80g of petroleum asphalt, adding 12g of desulfurized rubber powder, adding 500g of mineral powder, adding 5g of the anti-freezing agent, 2g of rubber particles to obtain the anti-freezing asphalt mixture.
Example 2:
further, 150g of carbide slag, 30g of magnesium oxide, 180g of glacial acetic acid, 40g of diatomite, 15g of methyltriethoxysilane, 90g of petroleum asphalt, 13g of desulfurized rubber powder, 550g of mineral powder, 8g of anti-freezing agent and 2g of rubber particles are taken.
In this embodiment: adding 150g of carbide slag and 30g of magnesium oxide into 400mL of deionized water, adding 180g of glacial acetic acid, cooling to room temperature, filtering to obtain a filtrate, adding 40g of diatomite into a pulverizer for pulverizing, adding sieved diatomite powder into the filtrate, adding 15g of methyltriethoxysilane, performing ultrasonic dispersion by 300W, adding into a rotary evaporator, evaporating to dryness at 125 ℃, grinding into a mortar, sieving with an 80-mesh sieve to obtain an anti-freezing agent, adding limestone into a jaw crusher for primary pulverization, crushing into a disc crusher for secondary pulverization, transferring into a vibrating screen machine, respectively screening limestone crushed stones with different particle sizes, adding the crushed stones into a mixer, mixing the crushed stones according to the SMA-13 grading requirement to obtain asphalt aggregate sandstone, adding 90g of petroleum asphalt, adding 13g of desulfurized rubber powder, adding 550g of mineral powder, adding 8g of anti-freezing agent, 2g of rubber particles to obtain the anti-freezing asphalt mixture.
Further, 200g of carbide slag, 40g of magnesium oxide, 240g of glacial acetic acid, 50g of diatomite, 20g of methyl triethoxysilane, 100g of petroleum asphalt, 15g of desulfurized rubber powder, 600g of mineral powder, 10g of anti-freezing agent and 3g of rubber particles are taken.
In the embodiment, 200g of carbide slag and 40g of magnesium oxide are taken and added into 400mL of deionized water, 240g of glacial acetic acid is added, the mixture is cooled to room temperature and then filtered to obtain filtrate, 50g of diatomite is taken and put into a pulverizer to be pulverized, the sieved diatomite powder is added into the filtrate, 20g of methyltriethoxysilane is added, the mixture is ultrasonically dispersed by 300W and then put into a rotary evaporator to be evaporated to dryness at 125 ℃, then the mixture is put into a mortar to be ground and sieved by a 80-mesh sieve to obtain an anti-freezing agent, limestone is taken and put into a jaw crusher to be pulverized for the first time, then the limestone is put into a disc crusher to be pulverized for the second time, the limestone gravels with different particle sizes are respectively screened out, the gravels are put into a gravel mixer to be mixed with the gravels according to the SMA-13-grade preparation requirement to obtain asphalt aggregate sandstone, 100g of petroleum asphalt is taken, 15g of desulfurized rubber powder is added, and 600g, and adding 10g of anti-freezing agent and 3g of rubber particles to obtain the anti-freezing asphalt mixture.
As shown in fig. 2, the volume parameters of the three examples all meet the design requirements, and the anti-freezing agent in the anti-freezing ice aggregate mixture needs a long time to be completely released, thereby showing that the durability of the anti-freezing ice aggregate asphalt mixture is good.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A preparation method of asphalt concrete capable of lowering the freezing point of a pavement is characterized by comprising the following steps of;
dissolving carbide slag and magnesium oxide in deionized water, adding glacial acetic acid, and stirring to obtain a filtrate;
crushing diatomite, adding the crushed diatomite into the filtrate, stirring, adding methyltriethoxysilane, performing ultrasonic dispersion, and then putting into a rotary evaporator for evaporation and drying to obtain an anti-freezing ice agent;
crushing limestone, then transferring the crushed limestone into a vibrating screen to screen coarse aggregates and fine aggregates, and uniformly mixing the coarse aggregates, the fine aggregates, asphalt and mineral powder in a mixer to obtain asphalt aggregates;
placing the nano-scale titanium dioxide in a constant-temperature drying box for drying treatment to remove free water in the nano-scale titanium dioxide;
shearing and dispersing the dewatered titanium dioxide and the asphalt aggregate in a high-speed shearing disperser until the asphalt aggregate is uniform and stable;
and (3) softening the asphalt aggregate, adding the desulfurized rubber powder, cooling, adding the anti-freezing agent and the rubber particles, and stirring to obtain the anti-freezing asphalt mixture.
2. The method for preparing asphalt concrete capable of lowering the freezing point of pavement according to claim 1, wherein the anti-freezing agent is obtained by pulverizing diatomaceous earth, adding into the filtrate, stirring, adding methyltriethoxysilane, performing ultrasonic dispersion, placing into a rotary evaporator, evaporating and drying,
and crushing diatomite, sieving the crushed diatomite with a 50-mesh sieve, stirring the filtrate for 30 minutes, adding methyltriethoxysilane, performing ultrasonic dispersion for 20 minutes, putting the mixture into a rotary evaporator for evaporation drying, and grinding the mixture and sieving the ground mixture with a 80-mesh sieve to obtain the anti-icing agent.
3. The method for preparing asphalt concrete capable of lowering the freezing point of pavement according to claim 1, wherein the nano-scale titanium dioxide is dried in a constant temperature drying oven to remove free water therein,
the temperature in the constant temperature drying oven was stabilized at 150 ℃.
4. The method for preparing asphalt concrete capable of lowering the freezing point of pavement according to claim 1, wherein in the step of subjecting the titanium dioxide after water removal and the asphalt aggregate to shear dispersion in a high-speed shear disperser until the asphalt aggregate is uniformly stabilized,
and (3) shearing and dispersing the titanium dioxide and the asphalt aggregate after the water removal at the room temperature of 24-26 ℃ for 30 minutes at the speed of 7500 rpm by using a high-speed shearing dispersion machine, so that the asphalt aggregate is uniform and stable.
5. The method for preparing asphalt concrete capable of lowering the freezing point of pavement according to claim 1, wherein the anti-freezing asphalt mixture is obtained by adding desulfurized rubber powder after the asphalt aggregate is softened, adding anti-freezing agent and rubber particles after cooling, and stirring,
heating and softening asphalt aggregate at 140 ℃ for 30 minutes, adding desulfurized rubber powder, continuously heating to 190 ℃, stirring for 10 minutes, adding the asphalt aggregate, stirring for 20 minutes, cooling to 80 ℃, adding an anti-freezing agent and rubber particles, and stirring for 40 minutes to obtain the anti-freezing asphalt mixture.
6. An asphalt concrete admixture capable of lowering the freezing point of a pavement is characterized by comprising the following raw materials in parts by weight:
100-200 g of carbide slag, 20-40 g of magnesium oxide, 120-240 g of glacial acetic acid, 30-50 g of diatomite, 10-20 g of methyltriethoxysilane, 80-100 g of petroleum asphalt, 12-15 g of desulfurized rubber powder, 500-600 g of mineral powder, 5-10 g of anti-freezing agent and 2-3 g of rubber particles.
7. The asphalt concrete admixture capable of lowering the freezing point of the pavement as claimed in claim 1, wherein in 100-200 g of carbide slag, 20-40 g of magnesium oxide, 120-240 g of glacial acetic acid, 30-50 g of diatomite, 10-20 g of methyltriethoxysilane, 80-100 g of petroleum asphalt, 12-15 g of desulfurized rubber powder, 500-600 g of mineral powder, 5-10 g of anti-freezing agent and 2-3 g of rubber particles,
100g of carbide slag, 20g of magnesium oxide, 120g of glacial acetic acid, 30g of diatomite, 10g of methyltriethoxysilane, 80g of petroleum asphalt, 12g of desulfurized rubber powder, 500g of mineral powder, 5g of anti-freezing agent and 2g of rubber particles are taken.
8. The asphalt concrete admixture capable of lowering the freezing point of the pavement as claimed in claim 7, wherein in 100-200 g of carbide slag, 20-40 g of magnesium oxide, 120-240 g of glacial acetic acid, 30-50 g of diatomite, 10-20 g of methyltriethoxysilane, 80-100 g of petroleum asphalt, 12-15 g of desulfurized rubber powder, 500-600 g of mineral powder, 5-10 g of anti-freezing agent and 2-3 g of rubber particles,
150g of carbide slag, 30g of magnesium oxide, 180g of glacial acetic acid, 40g of diatomite, 15g of methyltriethoxysilane, 90g of petroleum asphalt, 13g of desulfurized rubber powder, 550g of mineral powder, 8g of anti-freezing agent and 2g of rubber particles are taken.
9. The asphalt concrete admixture capable of lowering the freezing point of the pavement as claimed in claim 7, wherein in 100-200 g of carbide slag, 20-40 g of magnesium oxide, 120-240 g of glacial acetic acid, 30-50 g of diatomite, 10-20 g of methyltriethoxysilane, 80-100 g of petroleum asphalt, 12-15 g of desulfurized rubber powder, 500-600 g of mineral powder, 5-10 g of anti-freezing agent and 2-3 g of rubber particles,
200g of carbide slag, 40g of magnesium oxide, 240g of glacial acetic acid, 50g of diatomite, 20g of methyltriethoxysilane, 100g of petroleum asphalt, 15g of desulfurized rubber powder, 600g of mineral powder, 10g of anti-freezing agent and 3g of rubber particles are taken.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114958304A (en) * | 2022-04-14 | 2022-08-30 | 天成垦特莱赞皇科技有限公司 | Anti-icing agent and production method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107522430A (en) * | 2017-10-19 | 2017-12-29 | 谢新昇 | A kind of anti-freezing ice asphalt and preparation method thereof |
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2020
- 2020-09-30 CN CN202011063991.XA patent/CN112390568A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107522430A (en) * | 2017-10-19 | 2017-12-29 | 谢新昇 | A kind of anti-freezing ice asphalt and preparation method thereof |
Non-Patent Citations (1)
| Title |
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| 张金升等: "《交通新材料》", 31 January 2014, 哈尔滨工业大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114958304A (en) * | 2022-04-14 | 2022-08-30 | 天成垦特莱赞皇科技有限公司 | Anti-icing agent and production method and application thereof |
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Application publication date: 20210223 |