CN104261728B - Long-acting environment-friendly self-ice-melting asphalt mixture and preparation method thereof - Google Patents
Long-acting environment-friendly self-ice-melting asphalt mixture and preparation method thereof Download PDFInfo
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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
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Abstract
The invention relates to a long-acting environment-friendly self-ice-melting asphalt mixture and a preparation method thereof. The long-acting environment-friendly self-ice-melting asphalt mixture is prepared from the following components in parts by weight: 87-94 parts of aggregate, 2-6 parts of ice melting agent, 0-4 parts of ore powder and 4-7 parts of SBS (styrene-butadiene-styrene) modified asphalt. The ice melting agent is chlorine-ion magnesium-aluminum-base bis hydroxide, wherein the chlorine-ion magnesium-aluminum-base bis hydroxide is prepared from magnesium-aluminum-base bis hydroxide, sodium chloride and water in a mass ratio of 3:3:4. The asphalt pavement prepared from the self-ice-melting asphalt mixture has the self-ice-melting function; the ice melting performance is not influenced by molten snow water or rain water; and the asphalt mixture is effective for a long time, and is harmless to the environment.
Description
Technical field
The present invention relates to a kind of long-acting environment friendly from ice-melt asphalt and preparation method thereof.
Background technology
Bituminous paving has the advantages that driving is steady comfortably, noise is low, maintenance is convenient, at home and abroad obtains in highway construction
To extensively application.However, in the winter time, when icing phenomenon occurs in bituminous paving, car skidding, brake failure, direction will be caused
It is out of control, vehicle accident is easily caused, traffic safety is had a strong impact on.It is for eliminating the impact of ice and snow road pavement traffic, the most frequently used
Method be accumulated snow ice-patch surface dispense chloride salt deicing or snow melting agent.But due to chloride salt deicing or snow melting agent institute chloride ion-containing not
Only the water quality of road pavement periphery, soil and vegetation can produce destruction, and can make Colophonium and the adhesiveness reduction gathered materials, and
Serious corrosion failure is produced to the reinforcing bar in bridge cement concrete, causes bituminous paving and the durability of bridge to drop significantly
It is low.
It is in order to reduce impact of the villaumite deicing or snow melting agent of spreading to bituminous paving, bridge and environment, mixed from ice-melt Colophonium
Close material and obtain increasing application.So-called is that the agent of chloride salt deicing or snow melting is mixed Colophonium mixing from ice-melt asphalt
Material, with the bituminous paving of its making, when sleety weather is subject to vehicular load squeezing action, chloride salt ice-melt is never same into branch
The asphalt road layer of depth moves to road deck, so as to realize deicing or snow melting.However, the chlorine slowly discharged from bituminous concrete
Ion still to environmental effects, and can produce destruction to bituminous paving and bridge cement concrete, and as Colophonium is mixed
The reduction of chloride salt deicing or snow melting agent in solidifying soil, its deicing or snow melting performance also gradually weaken.Research shows, fills 5% chloride salt
After the bituminous concrete of deicing or snow melting agent is soaked 6 hours in water, its surface apparent freezing point is increased to -3 DEG C from -5.8 DEG C.
The content of the invention
The present invention is directed to the deficiencies in the prior art, it is therefore intended that provide a kind of long-acting environment friendly from ice-melt asphalt and
Its preparation method.The asphalt is with from ice-melt function, and its ice-melt performance is not affected by snow water or rainwater is melted, energy
It is enough to keep permanent effective, and environment is safe from harm.
To achieve these goals, the technical scheme is that：
A kind of long-acting environment friendly from ice-melt asphalt, it be by gathering materials, ice melting agent, breeze, SBS modified pitch groups
Into；Each component is calculated by weight as：Gather materials 87～94 parts, 2～6 parts of ice melting agent, 0～4 part of breeze, SBS modified pitch 4～7
Part, the ice melting agent be chloride ion type magnesium-aluminum-based laminar double hydroxide, the chloride ion type magnesium-aluminum-based laminar double hydroxide
Be by magnesium-aluminum-based laminar double hydroxide, Sodium Chloride and water according to mass ratio be 3:3:4 ratio is prepared from.
In such scheme, the preparation method of described chloride ion type magnesium-aluminum-based laminar double hydroxide is：By 30 parts of magnaliums
Base layered double-hydroxide is placed in the Muffle kiln roasting 2 hours that temperature is 500 DEG C, and then which be put into rapidly vacuum desiccator
In, room temperature is cooled to after evacuation；30 parts of Sodium Chloride and 40 parts of water are mixed in there-necked flask, and is heated to 70 DEG C, from dry
Magnesium-aluminum-based laminar double hydroxide after taking out roasting in dry device and cooling down, is quickly adding in there-necked flask, protects in nitrogen
Lower stirring 30min, takes out mixture and is washed with deionized filtration, until the filtrate after washing and filtering is checked with silver nitrate solution
Then filter cake is not dried 24 hours in 110 DEG C of baking oven by chloride ion-containing, takes out drying solid powder in high speed disintegrator
It is broken, then 200 mesh sieve of polished mistake, obtain chloride ion type magnesium-aluminum-based laminar double hydroxide.
In such scheme, described to gather materials for basalt, hard, coarse, wear-resisting, clean, its properties meets《Highway
Asphalt Pavement Construction Technique specification》Thick, the fine aggregate prescription of (GTJ F 40-2004) Asphalt Mixture.
In such scheme, described breeze is agstone, and the percent of pass of 200 mesh sieves is more than 75%.
In such scheme, the needle penetration of described 25 DEG C of SBS modified pitch is 30～60dmm, and 5 DEG C of ductility is more than
30cm, softening point is between 60～75 DEG C.
Preparation method of the above-mentioned long-acting environment friendly from ice-melt asphalt, is carried out in accordance with the following steps：
(1) by the parts by weight of each component it is：Gather materials 87～94 parts, 2～6 parts of ice melting agent, 0～4 part of breeze, SBS be modified
4～7 parts of Colophonium, selection is gathered materials, ice melting agent, SBS modified pitch, breeze, and the ice melting agent is that chloride ion type magnesium-aluminum-based stratiform is double
Hydroxide；
(2) preheat 3 hours in being put into the baking oven that temperature is 170～190 DEG C by gathering materials；
(3) SBS modified pitch is heated to into 150～160 DEG C, is added to temperature and is set as that 175 DEG C of asphalt is mixed
In machine, the 90～120s of aggregate blending after above-mentioned preheating is subsequently adding, finally will be breeze and chloride ion type magnesium-aluminum-based stratiform double
Hydroxide continues 50～70s of mix in being added to compound, obtains from ice-melt asphalt.
In the present invention, the magnesium-aluminum-based laminar double hydroxide is that by disclosed in patent CN 102174269A prepared by method
Obtain.The chemical composition of magnesium-aluminum-based laminar double hydroxide is：Mg0.67Al0.33(OH)2(CO3)0.17·0.6H2O.Therefore, this
Bright described magnesium-aluminum-based laminar double hydroxide is carbonate form magnesium-aluminum-based laminar double hydroxide, by carbonate form magnalium
Base layered double-hydroxide carries out roasting, and its interlayer anion carbonate is removed, then will be the magnesium-aluminum-based stratiform after roasting double
Hydroxide and aqueous sodium chloride liquid-phase mixing, using " the memory structures effect " of magnesium-aluminum-based laminar double hydroxide, by chlorine from
Son introduces the interlayer of magnesium-aluminum-based laminar double hydroxide, prepares chloride ion type magnesium-aluminum-based laminar double hydroxide.
Beneficial effects of the present invention：
(1) the chloride ion type magnesium-aluminum-based laminar double hydroxide prepared by the present invention has the work of the apparent freezing point for reducing water
With, while chloride ion finite field effect of the structure of magnesium-aluminum-based laminar double hydroxide to interlayer, therefore interlayer chlorine can be avoided
Ion is lost in；
(2) bituminous paving of the asphalt institute making prepared using chloride ion type magnesium-aluminum-based laminar double hydroxide,
Can will not discharge chloride ion under the souring of rainwater or snow water, impact not produced on environment with from ice-melt function,
To bituminous paving and the corrosion-free destruction of bridge cement concrete, ice-melt performance in road surface can keep permanently effective.
Specific embodiment
For a better understanding of the present invention, present disclosure is further elucidated with reference to embodiment, but the present invention
Content is not limited solely to the following examples.
Ice melting agent employed in following examples be chloride ion type magnesium-aluminum-based laminar double hydroxide, the chloride ion type
Magnesium-aluminum-based laminar double hydroxide is prepared via a method which to obtain：30 parts of magnesium-aluminum-based laminar double hydroxides are placed in temperature is
500 DEG C of Muffle kiln roasting 2 hours, is then put into rapidly which in vacuum desiccator, is cooled to room temperature after evacuation；By 30
Part Sodium Chloride and 40 parts of water mix in there-necked flask, and are heated to 70 DEG C, take out the magnalium basic unit after roasting from exsiccator
Shape double-hydroxide, is quickly adding in there-necked flask, stirs 30min under nitrogen protection, takes out mixture deionized water
Washing and filtering, until the filtrate after washing and filtering checks not chloride ion-containing with silver nitrate solution, then by filter cake in 110 DEG C of baking
It is dried 24 hours in case, takes out drying solid and crush in high speed disintegrator, then 200 mesh sieve of polished mistake, obtain chloride ion
Type magnesium-aluminum-based laminar double hydroxide.
The magnesium-aluminum-based laminar double hydroxide is that the method by disclosed in 102174269 A of patent CN is prepared.Magnalium
The chemical composition of base layered double-hydroxide is：Mg0.67Al0.33(OH)2(CO3)0.17·0.6H2O。
Embodiment 1：
Weigh 89.5 parts of (weight portion, similarly hereinafter) basalt aggregates (level matches somebody with somebody as shown in table 1, similarly hereinafter) temperature is put into for 180 DEG C
Baking oven in be dried and preheat 3 hours, then by 4.5 parts of SBS modified pitch, (25 DEG C of needle penetrations are 38dmm, and 5 DEG C of ductility is
35.2cm, softening point are 70.5 DEG C) 160 DEG C are heated to, the heat in the asphalt mixer that temperature is 175 DEG C is mixed with gathering materials
Close 90s；Add 5 parts of ice melting agents (chloride ion type magnesium-aluminum-based laminar double hydroxide), 1 part of limestone dust (200 mesh sieves it is logical
Rate is crossed for 90.6%) continuing mix 60s, that is, is obtained from ice-melt asphalt.Test shows：With this from ice-melt asphalt
The bituminous concrete surface apparent freezing point that compacting is obtained is -5.2 DEG C, and after which is soaked 6 hours in water, its surface apparent freezing point is still
For -5.2 DEG C, checked in soak with silver nitrate solution and separated out without chloride ion.
1 basalt aggregate level of table is matched somebody with somebody
Embodiment 2：
Weigh and be dried and preheat 3 hours during 90 parts of basalt aggregates are put into the baking oven that temperature is 175 DEG C, then by 4 parts of SBS
Modified pitch (25 DEG C of needle penetrations are 45dmm, and 5 DEG C of ductility is 36.4cm, and softening point is 68.7 DEG C) is heated to 158 DEG C, with collection
Material hot mix 100s in the asphalt mixer that temperature is 175 DEG C, adds 6 parts of ice melting agent (chloride ion type magnalium basic units
Shape double-hydroxide) continue mix 55s, that is, it is obtained from ice-melt asphalt.Test shows：With this from ice-melt asphalt
The bituminous concrete surface apparent freezing point that compacting is obtained is -6.3 DEG C, and after being soaked 6 hours, its surface apparent freezing point remains as -6.3
DEG C, checked in soak with silver nitrate solution and separated out without chloride ion.
Embodiment 3：
Weigh and be dried and preheat 3 hours during 90.7 parts of basalt aggregates are put into the baking oven that temperature is 185 DEG C, then by 4.3
Part SBS modified pitch (25 DEG C of needle penetrations are 48dmm, and 5 DEG C of ductility is 37.6cm, and softening point is 66.5 DEG C) is heated to 155 DEG C,
With the hot mix 100s in the asphalt mixer that temperature is 175 DEG C that gathers materials；Add 4 parts of ice melting agents (chloride ion type magnesium
Aluminum-based layered double-hydroxide), 1 part of limestone dust (percent of pass of 200 mesh sieves is 85%) continue mix 55s, that is, be obtained from
Ice-melt asphalt.Test shows：With this from ice-melt asphalt be compacted obtain bituminous concrete surface apparent freezing point for-
4.7 DEG C, after being soaked 6 hours, its surface apparent freezing point remains as -4.7 DEG C, with silver nitrate solution inspection soak in without chlorine from
Son is separated out.
Embodiment 4：
Weigh and be dried and preheat 3 hours during 88 parts of basalt aggregates are put into the baking oven that temperature is 180 DEG C, then by 6 parts of SBS
Modified pitch (25 DEG C of needle penetrations are 52dmm, and 5 DEG C of ductility is 38.5cm, and softening point is 65.4 DEG C) is heated to 154 DEG C, with collection
Material hot mix 100s in the asphalt mixer that temperature is 175 DEG C, adds 3 parts of ice melting agents (chloride ion type magnesium-aluminum-based
Layered double-hydroxide), 3 parts of limestone dusts (percent of pass of 200 mesh sieves is 92.4%) continue mix 65s, that is, be obtained from melting
Ice asphalt.Test shows：With this from ice-melt asphalt be compacted obtain bituminous concrete surface apparent freezing point for-
4.2 DEG C, after soaking 6 hours, its surface apparent freezing point remains as -4.2 DEG C, is checked in soak with silver nitrate solution and is analysed without chloride ion
Go out.
Embodiment 5：
A kind of preparation method of long-acting environment friendly from ice-melt asphalt, it comprises the steps：
(1) weight fraction as shared by each raw material is：Gather materials 87 parts, 6 parts of ice melting agent, 7 parts of SBS modified pitch, selection gather materials,
Ice melting agent, SBS modified pitch, it is standby；
The ice melting agent is chloride ion type magnesium-aluminum-based laminar double hydroxide；
Described to gather materials for basalt, hard, coarse, wear-resisting, clean, its properties meets《Asphalt highway is applied
Work technical specification》Thick, the fine aggregate prescription of (GTJ F 40-2004) Asphalt Mixture；
The needle penetration of 25 DEG C of described SBS modified pitch is 30～60dmm, and more than 30cm, softening point exists 5 DEG C of ductility
Between 60～75 DEG C；
(2) it is dried and preheats 3 hours in being put into the baking oven that temperature is 170 DEG C by gathering materials, by asphalt mixer
Temperature setting is 175 DEG C；
(3) SBS modified pitch is heated to 160 DEG C to be added in asphalt mixer, then will gather materials addition with
Its mix 90s, then chloride ion type magnesium-aluminum-based laminar double hydroxide is added to into continuation mix 70s in compound, obtain one kind
Long-acting environment friendly is from ice-melt asphalt.
Adopt this bituminous concrete surface apparent freezing point for obtaining to be compacted for -6.3 DEG C from ice-melt asphalt, soaked
After 6 hours, its surface apparent freezing point remains as -6.3 DEG C, is checked in soak with silver nitrate solution and is separated out without chloride ion.
Embodiment 6：
A kind of preparation method of long-acting environment friendly from ice-melt asphalt, it comprises the steps：
(1) weight fraction as shared by each raw material is：Gather materials 94 parts, 2 parts of ice melting agent, 4 parts of breeze, 4 parts of SBS modified pitch,
Selection is gathered materials, ice melting agent, SBS modified pitch, breeze, standby；
The ice melting agent is chloride ion type magnesium-aluminum-based laminar double hydroxide；
Described to gather materials for limestone or basalt, hard, coarse, wear-resisting, clean, its properties meets《Highway is dripped
Blue or green pavement construction technical specification》Thick, the fine aggregate prescription of (GTJ F 40-2004) Asphalt Mixture；
The needle penetration of 25 DEG C described of SBS modified pitch is 30～60dmm, and 5 DEG C of ductility is more than 30cm, and softening point is 60
Between～75 DEG C；
Described breeze is agstone, and the percent of pass of 200 mesh sieves is more than 75%；
(2) it is dried and preheats 3 hours in being put into the baking oven that temperature is 190 DEG C by gathering materials, by asphalt mixer
Temperature setting is 175 DEG C；
(3) SBS modified pitch is heated to into 150 DEG C, is then added in asphalt mixer, then will be gathered materials and add
Enter and its mix 120s, then chloride ion type magnesium-aluminum-based laminar double hydroxide and breeze are added in compound continue mix
50s, obtains a kind of long-acting environment friendly from ice-melt asphalt.
Adopt this bituminous concrete surface apparent freezing point for obtaining to be compacted for -3 DEG C from ice-melt asphalt, soaked 6
After hour, its surface apparent freezing point remains as -3 DEG C, is checked in soak with silver nitrate solution and is separated out without chloride ion.
Claims (6)
1. a kind of long-acting environment friendly from ice-melt asphalt, it is characterised in that：It is by gathering materials, ice melting agent, breeze and SBS are modified
Colophonium is constituted；Each component is calculated by weight as：Gather materials 87 ~ 94 parts, 2 ~ 6 parts of ice melting agent, 0 ~ 4 part of breeze, SBS modified pitch 4 ~
7 parts, the ice melting agent be chloride ion type magnesium-aluminum-based laminar double hydroxide, the chloride ion type magnesium-aluminum-based laminar double hydroxide
Be by magnesium-aluminum-based laminar double hydroxide, Sodium Chloride and water according to mass ratio be 3:3:4 ratio is prepared from；Described chlorine from
The preparation method of subtype magnesium-aluminum-based laminar double hydroxide is：30 parts of magnesium-aluminum-based laminar double hydroxides are placed in into temperature for 500
DEG C Muffle kiln roasting 2 hours, then which is put in vacuum desiccator rapidly, room temperature after evacuation, is cooled to；By 30 parts
Sodium Chloride and 40 parts of water mix in there-necked flask, and are heated to 70 DEG C, take out the magnesium-aluminum-based stratiform after roasting from exsiccator
Double-hydroxide, is quickly adding in there-necked flask, stirs 30min under nitrogen protection, takes out mixture and is washed with deionized water
Filtration is washed, until the filtrate after washing and filtering checks not chloride ion-containing with silver nitrate solution, then by filter cake in 110 DEG C of baking oven
Middle drying 24 hours, takes out drying solid and crushes in high speed disintegrator, then 200 mesh sieve of polished mistake, obtains chloride ion type
Magnesium-aluminum-based laminar double hydroxide.
2. a kind of long-acting environment friendly according to claim 1 from ice-melt asphalt, it is characterised in that：Described gathers materials
For basalt.
3. a kind of long-acting environment friendly according to claim 1 from ice-melt asphalt, it is characterised in that：Described breeze
For agstone, the percent of pass of 200 mesh sieves is more than 75%.
4. a kind of long-acting environment friendly according to claim 1 from ice-melt asphalt, it is characterised in that：Described SBS
Modified pitch, its 25 DEG C of needle penetrations are 30 ~ 60dmm, and 5 DEG C of ductility is more than 30cm, and softening point is between 60 ~ 75 DEG C.
5. the preparation method from ice-melt asphalt of a kind of long-acting environment friendly described in claim 1, it is characterised in that according to
Following steps are carried out：
（1）By each component parts by weight it is：Gather materials 87 ~ 94 parts, 2 ~ 6 parts of ice melting agent, 0 ~ 4 part of breeze, 4 ~ 7 parts of SBS modified pitch,
Selection is gathered materials, ice melting agent, SBS modified pitch, breeze, the ice melting agent be chloride ion type magnesium-aluminum-based laminar double hydroxide, institute
It is to be according to mass ratio by magnesium-aluminum-based laminar double hydroxide, Sodium Chloride and water to state chloride ion type magnesium-aluminum-based laminar double hydroxide
3:3:4 ratio is prepared from；
（2）To gather materials and preheat 3 hours in being put into the baking oven that temperature is 170 ~ 190 DEG C；
（3）SBS modified pitch is heated to into 150 ~ 160 DEG C, is then added in the asphalt mixer that temperature is 175 DEG C,
Then by preheating after gather materials addition and 90 ~ 120s of its mix, finally by breeze and chloride ion type magnesium-aluminum-based stratiform double hydroxides
Thing continues 50 ~ 70 s of mix in being added to compound, obtains from ice-melt asphalt.
6. the preparation method from ice-melt asphalt of a kind of long-acting environment friendly according to claim 5, it is characterised in that
The preparation method of described chloride ion type magnesium-aluminum-based laminar double hydroxide is：30 parts of magnesium-aluminum-based laminar double hydroxides are placed in
Temperature is 500 DEG C of Muffle kiln roasting 2 hours, and then which is put in vacuum desiccator rapidly, room is cooled to after evacuation
Temperature；30 parts of Sodium Chloride and 40 parts of water are mixed in there-necked flask, and is heated to 70 DEG C, take out the magnesium after roasting from exsiccator
Aluminum-based layered double-hydroxide, is quickly adding in there-necked flask, stirs 30min under nitrogen protection, takes out mixture and spends
Ionized water washing and filtering, until the filtrate after washing and filtering checks not chloride ion-containing with silver nitrate solution, then by filter cake 110
DEG C baking oven in be dried 24 hours, take out drying solid and crush in high speed disintegrator, then 200 mesh sieve of polished mistake is obtained
Chloride ion type magnesium-aluminum-based laminar double hydroxide.
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| CN104672929B (en) * | 2015-02-05 | 2016-11-23 | 江西赣粤高速公路股份有限公司 | A kind of preparation method of anticoagulant ice asphalt material |
| CN105384393A (en) * | 2015-11-30 | 2016-03-09 | 盖波 | Freeze-resisting asphalt mixture and preparation method thereof |
| CN106082793B (en) * | 2016-06-29 | 2018-08-07 | 河北建筑工程学院 | It is sustained salt composite phase-change material asphalt and preparation method thereof |
| CN109135674B (en) * | 2018-09-11 | 2021-06-08 | 武汉市市政建设集团有限公司 | Hydrophobic multifunctional snow-melting agent and preparation method thereof |
| CN110395942A (en) * | 2019-07-26 | 2019-11-01 | 中交一公局第三工程有限公司 | Ice-melt disappear avenge asphalt and preparation method thereof, ice-melt disappears and avenges asphalt concrete pavement and its construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2827127B2 (en) * | 1990-02-20 | 1998-11-18 | 世紀東急工業株式会社 | Slip / freeze prevention material |
| CN101948260A (en) * | 2009-04-03 | 2011-01-19 | 怀方林 | Capsule type snow ice melt inhibiting material, preparation method and application thereof |
| CN102174269B (en) * | 2011-03-21 | 2013-07-17 | 武汉理工大学 | Magnesium-aluminum based layered double hydroxide aging resistant SBS (Styrene-Butadiene-Styrene Block Copolymer) modified asphalt and preparation method thereof |
| CN102408873B (en) * | 2011-11-10 | 2014-07-30 | 亓伟 | Powder and paint for inhibiting road from freezing and preparation methods thereof |
| CN102863174A (en) * | 2012-09-08 | 2013-01-09 | 王桂明 | Cement concrete corrosion inhibitor |
| CN103030314B (en) * | 2012-12-31 | 2015-01-07 | 哈尔滨工业大学 | Preparation method of bituminous mixture controlled-release complex salt filler |
| CN103771765A (en) * | 2013-11-05 | 2014-05-07 | 江苏东交工程检测有限公司 | Freezing-proof bituminous mixture as well as preparation method and construction method thereof |
| CN103805059B (en) * | 2014-01-29 | 2016-07-27 | 江苏省交通规划设计院股份有限公司 | A kind of spacetabs type three component road surface deicing snow melt coating and preparation method thereof |
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