CN108191301A - A kind of anti-chap bituminous concrete and its preparation process - Google Patents
A kind of anti-chap bituminous concrete and its preparation process Download PDFInfo
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- CN108191301A CN108191301A CN201810230102.0A CN201810230102A CN108191301A CN 108191301 A CN108191301 A CN 108191301A CN 201810230102 A CN201810230102 A CN 201810230102A CN 108191301 A CN108191301 A CN 108191301A
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- Prior art keywords
- pitch
- bituminous concrete
- chap
- wood fibre
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Classifications
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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
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/06—Quartz; Sand
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/18—Waste materials; Refuse organic
- C04B18/24—Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper, cork
- C04B18/26—Wood, e.g. sawdust, wood shavings
-
- 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
-
- 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
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant materials
-
- 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
Abstract
The present invention relates to asphalt concrete technique fields, and in particular to a kind of anti-chap bituminous concrete and its preparation process, raw material include following components：Modified pitch, coarse aggregate, fine aggregate, wood fibre, zinc white and silica flour；The wood fibre and silica flour added in raw material of the present invention has excellent flexibility and dispersibility, tridimensional network is formed after mixing, can hinder the flowing of pitch, and wood fibre has stronger adsorption capacity, the poison gas that energy adsorptive pitch volatilizes；Silica flour can be filled modified pitch internal clearance, and the intensity and compactness that can improve bituminous concrete are mutually coordinated with wood fibre, also improve bituminous concrete and resist dry and cracked performance；The zinc white added in raw material, zinc white can further make to be chemically crosslinked between SBS and matrix pitch, so as to improve the stability of the modified pitch during bituminous concrete is prepared；Meanwhile zinc white has the function of antibacterial, can prevent microorganism from corroding to wood fibre.
Description
Technical field
The present invention relates to asphalt concrete technique fields, and in particular to a kind of anti-chap bituminous concrete and its preparation work
Skill.
Background technology
Bituminous concrete is that Mineral Aggregate is obtained after mixing and compaction moulding with asphalt binder, is modern road
One of main material of road pavement structure is widely used in all kinds of pavement of road, is especially suitable for high speed traveling pavement of road.Pitch
Concrete road surface has good mechanical property and pavement performance, and the smooth seamless in paving, the thin sound of vibration damping, driving is comfortable, traffic
The advantages that safe, and bituminous paving can realize the regeneration of ground surface material, therefore by vast design in highway construction
Person and the favor of builder.
But existing bituminous concrete and preparation method thereof still there are many deficiencies part, bituminous concrete intensity is low,
Porosity is big, and poor water resistance is also easy to produce crackle；Bituminous concrete anti-aging property is poor, and service life is short；In preparation process, drip
Blueness can volatilize poison gas, harmful.
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of anti-chap bituminous concrete and its preparation process, raw materials
The wood fibre and silica flour of middle addition, wood fibre proportion is small, large specific surface area, has excellent flexibility and dispersibility,
Tridimensional network is formed after mixing, the flowing of pitch can be hindered, and wood fibre has stronger adsorption capacity, can adsorb
The poison gas that pitch volatilizes；Silica flour can be filled modified pitch internal clearance, and mutually coordinating with wood fibre can carry
The intensity and compactness of high bituminous concrete also improve bituminous concrete and resist dry and cracked performance；In addition silica flour and rubber powder phase
Mutually cooperation can also improve the water proofing property and anti-flammability of bituminous concrete, can also prevent from receiving because temperature reduces bituminous concrete volume
It contracts and cracks；The zinc white added in raw material, zinc white can further make chemistry friendship occurs between SBS and matrix pitch
Connection, so as to improve the stability of the modified pitch during bituminous concrete is prepared；Meanwhile zinc white has the work of antibacterial
With can prevent microorganism from corroding to wood fibre, ensure that the stability of wood fibre structure；In addition, zinc white can also
Effectively absorption and scatters ultraviolet improve the anti-aging property of bituminous concrete.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs：
A kind of anti-chap bituminous concrete, raw material is by by weight：20-25 parts of modified pitch, coarse aggregate 150-180
Part, 90-120 parts of fine aggregate, 2-5 parts of wood fibre, 0.2-0.5 parts of zinc white and 2.5-4 parts of silica flour.
Preferential, a kind of anti-chap bituminous concrete, preparation method includes the following steps：
A, modified pitch is first prepared, the raw material of modified pitch is by matrix pitch, SBS, rubber powder, sulphur and surfactant
Composition, the preparation method of modified pitch are：First by matrix pitch in temperature to be heated to melting completely at 170 DEG C, add in matrix
The SBS of pitch weight 5%, the rubber powder of matrix pitch weight 7%, the sulphur of matrix pitch weight 1.5%, matrix pitch weight
0.5% surfactant is uniformly mixed, and obtains mixture；It is 170 DEG C that mixture is kept in high-speed shearing machine to temperature, is cut
It cuts 40 minutes, shearing revolution is 4000 revs/min, obtains modified pitch；
B, the coarse aggregate after screening and fine aggregate are mixed again, dried, be preheating to 170 DEG C and obtain blending ingredients
A；
C, and then again wood fibre, silica flour and zinc white are added in into blending ingredients A at 170 DEG C, rotating speed is
200-500 revs/min is stirred 10 minutes, is then added modified pitch and is stirred 10 minutes with 200-500 revs/min, after stirring
It is conserved and can obtain anti-chap bituminous concrete.
Preferential, the coarse aggregate is rubble, the combination of the one or both of gravel.
Preferential, the fine aggregate is natural sand.
Preferential, surfactant is sodium lignin sulfonate in the step a.
Preferential, the step a mesostromas pitch is first ground to 3-13mm through pitch grinder and uses.
(3) advantageous effect
1st, the wood fibre and silica flour added in raw material of the present invention, wood fibre proportion is small, large specific surface area, has excellent
Good flexibility and dispersibility, tridimensional network is formed after mixing, can hinder the flowing of pitch, and wood fibre have compared with
Strong adsorption capacity, the poison gas that energy adsorptive pitch volatilizes；Silica flour can be filled modified pitch internal clearance, with
Wood fibre mutually coordinates the intensity and compactness that can improve bituminous concrete, also improves bituminous concrete and resists dry and cracked performance；Separately
Outer silica flour can also improve the water proofing property and anti-flammability of bituminous concrete with rubber powder mutual cooperation, can also prevent from dropping because of temperature
Low bituminous concrete volume contraction and crack.
2nd, the zinc white added in raw material of the present invention, zinc white can further make chemistry occurs between SBS and matrix pitch
Crosslinking, so as to improve the stability of the modified pitch during bituminous concrete is prepared；Meanwhile zinc white has the work of antibacterial
With can prevent microorganism from corroding to wood fibre, ensure that the stability of wood fibre structure；In addition, zinc white can also
Effectively absorption and scatters ultraviolet improve the anti-aging property of bituminous concrete.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention,
Technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is the present invention one
Divide embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making
All other embodiments obtained under the premise of creative work, shall fall within the protection scope of the present invention.
Embodiment 1：
A kind of anti-chap bituminous concrete, raw material is by by weight：20 parts of modified pitch, 150 parts of coarse aggregate, thin collection
2.5 parts of 100 parts of material, 3 parts of wood fibre, 0.2 part of zinc white and silica flour.
A kind of anti-chap bituminous concrete, preparation method include the following steps：
A, modified pitch is first prepared, the raw material of modified pitch is by matrix pitch, SBS, rubber powder, sulphur and surfactant
Composition, the preparation method of modified pitch are：First by matrix pitch in temperature to be heated to melting completely at 170 DEG C, add in matrix
The SBS of pitch weight 5%, the rubber powder of matrix pitch weight 7%, the sulphur of matrix pitch weight 1.5%, matrix pitch weight
0.5% surfactant is uniformly mixed, and obtains mixture；It is 170 DEG C that mixture is kept in high-speed shearing machine to temperature, is cut
It cuts 40 minutes, shearing revolution is 4000 revs/min, obtains modified pitch；
B, the coarse aggregate after screening and fine aggregate are mixed again, dried, be preheating to 170 DEG C and obtain blending ingredients
A；
C, and then again wood fibre, silica flour and zinc white are added in into blending ingredients A at 170 DEG C, rotating speed is
200-500 revs/min is stirred 10 minutes, is then added modified pitch and is stirred 10 minutes with 200-500 revs/min, after stirring
It is conserved and can obtain anti-chap bituminous concrete.
Embodiment 2：
A kind of anti-chap bituminous concrete, raw material is by by weight：22 parts of modified pitch, 160 parts of coarse aggregate, thin collection
3 parts of 90 parts of material, 2 parts of wood fibre, 0.3 part of zinc white and silica flour.
A kind of anti-chap bituminous concrete, preparation method include the following steps：
A, modified pitch is first prepared, the raw material of modified pitch is by matrix pitch, SBS, rubber powder, sulphur and surfactant
Composition, the preparation method of modified pitch are：First by matrix pitch in temperature to be heated to melting completely at 170 DEG C, add in matrix
The SBS of pitch weight 5%, the rubber powder of matrix pitch weight 7%, the sulphur of matrix pitch weight 1.5%, matrix pitch weight
0.5% surfactant is uniformly mixed, and obtains mixture；It is 170 DEG C that mixture is kept in high-speed shearing machine to temperature, is cut
It cuts 40 minutes, shearing revolution is 4000 revs/min, obtains modified pitch；
B, the coarse aggregate after screening and fine aggregate are mixed again, dried, be preheating to 170 DEG C and obtain blending ingredients
A；
C, and then again wood fibre, silica flour and zinc white are added in into blending ingredients A at 170 DEG C, rotating speed is
200-500 revs/min is stirred 10 minutes, is then added modified pitch and is stirred 10 minutes with 200-500 revs/min, after stirring
It is conserved and can obtain anti-chap bituminous concrete.
Embodiment 3：
A kind of anti-chap bituminous concrete, raw material is by by weight：24 parts of modified pitch, 180 parts of coarse aggregate, thin collection
3.5 parts of 1100 parts of material, 4 parts of wood fibre, 0.5 part of zinc white and silica flour.
A kind of anti-chap bituminous concrete, preparation method include the following steps：
A, modified pitch is first prepared, the raw material of modified pitch is by matrix pitch, SBS, rubber powder, sulphur and surfactant
Composition, the preparation method of modified pitch are：First by matrix pitch in temperature to be heated to melting completely at 170 DEG C, add in matrix
The SBS of pitch weight 5%, the rubber powder of matrix pitch weight 7%, the sulphur of matrix pitch weight 1.5%, matrix pitch weight
0.5% surfactant is uniformly mixed, and obtains mixture；It is 170 DEG C that mixture is kept in high-speed shearing machine to temperature, is cut
It cuts 40 minutes, shearing revolution is 4000 revs/min, obtains modified pitch；
B, the coarse aggregate after screening and fine aggregate are mixed again, dried, be preheating to 170 DEG C and obtain blending ingredients
A；
C, and then again wood fibre, silica flour and zinc white are added in into blending ingredients A at 170 DEG C, rotating speed is
200-500 revs/min is stirred 10 minutes, is then added modified pitch and is stirred 10 minutes with 200-500 revs/min, after stirring
It is conserved and can obtain anti-chap bituminous concrete.
Embodiment 4：
A kind of anti-chap bituminous concrete, raw material is by by weight：25 parts of modified pitch, 170 parts of coarse aggregate, thin collection
4 parts of 120 parts of material, -5 parts of wood fibre, 0.4 part of zinc white and silica flour.
A kind of anti-chap bituminous concrete, preparation method include the following steps：
A, modified pitch is first prepared, the raw material of modified pitch is by matrix pitch, SBS, rubber powder, sulphur and surfactant
Composition, the preparation method of modified pitch are：First by matrix pitch in temperature to be heated to melting completely at 170 DEG C, add in matrix
The SBS of pitch weight 5%, the rubber powder of matrix pitch weight 7%, the sulphur of matrix pitch weight 1.5%, matrix pitch weight
0.5% surfactant is uniformly mixed, and obtains mixture；It is 170 DEG C that mixture is kept in high-speed shearing machine to temperature, is cut
It cuts 40 minutes, shearing revolution is 4000 revs/min, obtains modified pitch；
B, the coarse aggregate after screening and fine aggregate are mixed again, dried, be preheating to 170 DEG C and obtain blending ingredients
A；
C, and then again wood fibre, silica flour and zinc white are added in into blending ingredients A at 170 DEG C, rotating speed is
200-500 revs/min is stirred 10 minutes, is then added modified pitch and is stirred 10 minutes with 200-500 revs/min, after stirring
It is conserved and can obtain anti-chap bituminous concrete.
To sum up, by traditional bituminous concrete and preparation method thereof as a control group, it is dripped using a kind of anti-chap of the present invention
Green concrete and its preparation process are as experimental group, by control group and the prepared anti-chap of the embodiment of the present invention 1,2,3 and 4
Bituminous concrete compares.At identical conditions, every achievement data such as following table is obtained：
| Porosity/% | Service life/year | |
| Control group | 8.5 | 6-15 |
| Embodiment 1 | 2.7 | 20-25 |
| Embodiment 2 | 3.1 | 22-24 |
| Embodiment 3 | 2.9 | 19-21 |
| Embodiment 4 | 2.4 | 20-23 |
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any this practical relationship or sequence.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only will including those
Element, but also including other elements that are not explicitly listed or further include as this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
Also there are other identical elements in process, method, article or equipment including the element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention is described in detail, it will be understood by those of ordinary skill in the art that：It still can be to aforementioned each implementation
Technical solution recorded in example modifies or carries out equivalent replacement to which part technical characteristic；And these modification or
It replaces, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.
Claims (6)
1. a kind of anti-chap bituminous concrete, which is characterized in that its raw material is by by weight：20-25 parts of modified pitch, rough set
2.5-4 parts of 150-180 parts of material, 90-120 parts of fine aggregate, 2-5 parts of wood fibre, 0.2-0.5 parts of zinc white and silica flour.
2. a kind of anti-chap bituminous concrete as described in claim 1, which is characterized in that preparation method includes following step
Suddenly：
A, modified pitch is first prepared, the raw material of modified pitch is by matrix pitch, SBS, rubber powder, sulphur and surfactant group
Into the preparation method of modified pitch is：First by matrix pitch in temperature to be heated to melting completely at 170 DEG C, add in matrix drip
The SBS of green weight 5%, the rubber powder of matrix pitch weight 7%, the sulphur of matrix pitch weight 1.5%, matrix pitch weight
0.5% surfactant is uniformly mixed, and obtains mixture；It is 170 DEG C that mixture is kept in high-speed shearing machine to temperature, is cut
It cuts 40 minutes, shearing revolution is 4000 revs/min, obtains modified pitch；
B, the coarse aggregate after screening and fine aggregate are mixed again, dried, be preheating to 170 DEG C and obtain blending ingredients A；
C, and then again wood fibre, silica flour and zinc white are added in into blending ingredients A at 170 DEG C, rotating speed 200-500
Rev/min stirring 10 minutes, then add modified pitch with 200-500 revs/min stir 10 minutes, conserved after stirring
It can obtain anti-chap bituminous concrete.
3. a kind of anti-chap bituminous concrete as described in claim 1, it is characterised in that：The coarse aggregate is rubble, gravel
One or both combination.
4. a kind of anti-chap bituminous concrete as described in claim 1, it is characterised in that：The fine aggregate is natural sand.
5. a kind of anti-chap bituminous concrete as claimed in claim 2, it is characterised in that：Surfactant in the step a
For sodium lignin sulfonate.
6. a kind of preparation method of anti-chap bituminous concrete as claimed in claim 2, it is characterised in that：In the step a
Matrix pitch is first ground to 3-13mm through pitch grinder and reuses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810230102.0A CN108191301A (en) | 2018-03-20 | 2018-03-20 | A kind of anti-chap bituminous concrete and its preparation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810230102.0A CN108191301A (en) | 2018-03-20 | 2018-03-20 | A kind of anti-chap bituminous concrete and its preparation process |
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| Publication Number | Publication Date |
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| CN108191301A true CN108191301A (en) | 2018-06-22 |
Family
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|---|---|---|---|
| CN201810230102.0A Pending CN108191301A (en) | 2018-03-20 | 2018-03-20 | A kind of anti-chap bituminous concrete and its preparation process |
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Cited By (5)
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|---|---|---|---|---|
| CN109320138A (en) * | 2018-10-30 | 2019-02-12 | 湖北津泰环保科技有限公司 | A kind of modified asphalt mixture and preparation method thereof that anti-time property is good |
| CN109336469A (en) * | 2018-10-30 | 2019-02-15 | 湖北津泰环保科技有限公司 | A kind of SBS modified asphalt mixture and preparation method thereof |
| CN112645642A (en) * | 2020-12-22 | 2021-04-13 | 宁波北仑鸿通工程建设有限公司 | Anti-cracking asphalt concrete and preparation method thereof |
| CN112679147A (en) * | 2020-05-26 | 2021-04-20 | 马瓯丽 | High-temperature-resistant and anti-rutting asphalt mixture |
| WO2022090617A1 (en) * | 2020-10-27 | 2022-05-05 | Finn Recycling Oy | Material mixture for surface to be coated |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109320138A (en) * | 2018-10-30 | 2019-02-12 | 湖北津泰环保科技有限公司 | A kind of modified asphalt mixture and preparation method thereof that anti-time property is good |
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| CN109320138B (en) * | 2018-10-30 | 2021-03-16 | 湖北津泰环保科技有限公司 | Modified asphalt mixture with good weather resistance and preparation method thereof |
| CN109336469B (en) * | 2018-10-30 | 2021-06-08 | 湖北津泰环保科技有限公司 | SBS modified asphalt mixture and preparation method thereof |
| CN112679147A (en) * | 2020-05-26 | 2021-04-20 | 马瓯丽 | High-temperature-resistant and anti-rutting asphalt mixture |
| CN112679147B (en) * | 2020-05-26 | 2023-05-30 | 唐山天跃建材有限公司 | High-temperature-resistant rut-resistant asphalt mixture |
| WO2022090617A1 (en) * | 2020-10-27 | 2022-05-05 | Finn Recycling Oy | Material mixture for surface to be coated |
| CN112645642A (en) * | 2020-12-22 | 2021-04-13 | 宁波北仑鸿通工程建设有限公司 | Anti-cracking asphalt concrete and preparation method thereof |
| CN112645642B (en) * | 2020-12-22 | 2021-12-28 | 宁波北仑鸿通工程建设有限公司 | Anti-cracking asphalt concrete and preparation method thereof |
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Application publication date: 20180622 |