CN110437639A - A kind of road special multi-modified asphalt and preparation method thereof - Google Patents
A kind of road special multi-modified asphalt and preparation method thereof Download PDFInfo
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- CN110437639A CN110437639A CN201910893989.6A CN201910893989A CN110437639A CN 110437639 A CN110437639 A CN 110437639A CN 201910893989 A CN201910893989 A CN 201910893989A CN 110437639 A CN110437639 A CN 110437639A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/05—Alcohols; Metal alcoholates
- C08K5/053—Polyhydroxylic alcohols
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2265—Oxides; Hydroxides of metals of iron
- C08K2003/2272—Ferric oxide (Fe2O3)
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/005—Additives being defined by their particle size in general
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of road special multi-modified asphalts and preparation method thereof; modified pitch includes the component of following parts by weight: 70-85 parts of basic asphalt, 1-8 parts of hydroxide XOH; wherein X=Na; Ca; Mg, Li or K, 1-3 parts of diol compound, 2-5 parts of ash content, 1-3 parts of the granulate mixture of at least one hydrocarbon adhesive and 3-5 parts of amine additive of at least one.Amine additive and hydroxide XOH are introduced into modified pitch by the present invention, and ductility and softening temperature are improved；By using the granulate mixture for meeting specified particle size distribution, there are good sound absorption properties；By using ash content, reduce the curing time of modified pitch.
Description
Technical field
The present invention relates to Load materials technical fields, and in particular to a kind of road special multi-modified asphalt and preparation method thereof.
Background technique
The dark brown complex mixture that pitch is made of the hydrocarbon and its non metallic derivatives of different molecular weight,
It is one kind of high viscosity organic liquid, is in a liquid state, surface is in black, dissolves in carbon disulfide.Pitch be it is a kind of waterproof and dampproof and
Corrosion-resistant organic cementitious material.Pitch is mainly used for coatings, plastics, rubber and other industries and the pavement etc..
With the development of Modern Traffic, the performance on traditional asphalt road surface is increasingly difficult to meet the requirements.Because existing in pitch
Aromatic series and unsaturated compound, bituminous composition is to oxidation-sensitive.As a result, its mechanical performance reduces at any time.For example, in road
In the application of road, the reduction of mechanical performance shows as cracking initiation, the hollow on road.Therefore, it is intended that keeping pitch as much as possible
Mechanical performance at any time.In addition, with the development of the city, road noise increasingly influences people's lives quality, and road
Noise mostlys come from contact noise caused by the friction between vehicle tyre and road surface, how to reduce and contacts with vehicle tyre
Generated noise in the process, is increasingly paid close attention to by people.
Summary of the invention
The invention proposes a kind of road special multi-modified asphalts and preparation method thereof, obtain ductility and softening temperature
Improve, reduces the rolling noise between road surface and the vehicles, while also reducing the curing time of modified pitch.
The present invention relates to modified pitch, and it includes the components of following parts by weight: 70-85 parts of basic asphalt, hydroxide
1-8 parts of XOH, wherein X=Na, Ca, Mg, Li or K, 1-3 parts of diol compound, 2-5 parts of ash content, at least one hydrocarbon adhesive
1-3 parts of granulate mixture and at least one 3-5 parts of amine additive.Wherein the modified pitch is substantially free of sponifiable and saponification
Carboxylic acid.
As optimization, hydroxide XOH is selected from NaOH and KOH, and preferably NaOH.
As optimization, the diol compound is selected from short-chain diol, EG (ethylene glycol), Isosorbide-5-Nitrae-BD (1,4-butanediol), 1,
At least one of 5-PD (1,5- pentanediol), 1,6-HD (1,6-HD) and CHDM (1,4 cyclohexane dimethanol).
As optimization, the granulate mixture is selected from filler, fine aggregate, sand, fine sand, coarse sand, clast aggregation, gravel bone
Or mixtures thereof material, rubble, dust aggregate.
As optimization, the granulate mixture meets the following conditions: a) the granulate mixture component of 80-90% weight has
Size less than 6.0mm；B) the granulate mixture component of 70-85% weight has the size less than 4.8mm；C) 45-78% weight
The granulate mixture component of amount has the size less than 3.5mm；D) the granulate mixture component of 20-40% weight has and is less than
The size of 2mm；E) the granulate mixture component of 15-30% weight has the size less than 1mm；F) particle of 11-16% weight
Component of mixture has the size less than 0.8mm；G) the granulate mixture component of 8-12% weight has the ruler less than 0.3mm
It is very little；H) the granulate mixture component of 5-8% weight has the size less than 0.12mm.
As optimization, the ash content are as follows: the SiO of ZnO, 10%-55% of 25%-85%2, 2%-8% Fe2O3With
The MgO of 2%-5%；
The amine additive is selected from amine, diamines, polyamines, alkyl amido amine, polyamide-polyamino and imidazoline.
As optimization, amine additive is selected from the amine of Formulas I:
Wherein: R is saturated or unsaturated, substituted or unsubstituted, optional branching or cricoid former with 8-24 carbon
The alkyl of son, such as derived from tallow acid or ready denier oil acid；R1 and R2 can be identical or different, selected from hydrogen or has
The alkyl of 1-24 carbon atom；R1 and R2 is preferably selected from hydrogen or methyl.
As optimization, amine additive is selected from diamines, the polyamines of Formula II:
R-(NH-L)n—NH2 (II)
Wherein: R is identical as the meaning in (I) above；L indicates the linear chain or branched chain alkyl with 1 to 6 carbon atom, example
If L is-(CH2) m-, m=1,2 or 3, and n is greater than or equal to the integer that 1 integer, especially n are 1 to 6.
As optimization, amine additive is selected from the alkyl amido amine of formula III:
Wherein: R, R1, R2 and L have and identical meaning in (I) and (II).
As optimization, amine additive is selected from polyamide-polyamino, the imidazoline of formula IV:
RCO-(NH-L)p-NH2 (IV)
Wherein: R and L, which has, is greater than or equal to 1 integer, especially p with identical meaning in above-mentioned (I) and (II), p
It is integer of 1 to 10.
As optimization, amine additive is selected from the polyamide-polyamino comprising following formula aliphatic chain:
RCO-(NH-L)p-NH2 (IV)
Wherein: p is greater than or equal to the integer that 1 integer, especially p are 1 to 10；L is with 1 to 6 carbon atom
Linear chain or branched chain alkyl, such as L are-(CH2) m-, m=1,2 or 3, R be it is saturated or unsaturated, it is substituted or unsubstituted, appoint
Select the alkyl with 8-24 carbon atom of branching.
As optimization, the modified pitch also includes olefin polymer.The olefin polymer includes: (a) ethylene and (first
Base) glycidyl acrylate copolymer, selected from ethylene and be selected from glycidyl acrylate and Glycidyl methacrylate
The random and block copolymer of the monomer of glyceride preferably comprises 10% to 15.7% weight, preferably 12% to 14.3% weight,
The ethylene of more preferable 13% weight；(b) ethylene, monomer A and monomer B terpolymer；Monomer A be selected from vinyl acetate,
(C1-C6) alkyl acrylate such as methacrylate, monomer B is selected from glycidyl acrylate and Glycidyl methacrylate is sweet
Grease；Particularly, terpolymer includes 0.5% to 10% weight, preferably 5% to 8% weight, the list of more preferable 6% weight
Body A, 1% to 10% weight, monomer B, the rest part of preferably 2% to 5% weight are formed by the unit of derived from ethylene.
As optimization, the modified pitch also includes elastomer, and the elastomer is selected from SB copolymer (styrene and fourth two
The block copolymer of alkene), SBS (styrene-butadiene block copolymer styrene), SIS (styrene-isoprene-benzene second
Alkene), SBS* (block copolymer s-B-S star), SBR (styrene-b-butadiene rubber), EPDM (ethylene
Propylene diene is modified).
As optimization, carboxylic acid of the modified pitch substantially free of sponifiable and saponification.
One group of component of substantially free, it is meant that the modified pitch contains at most 0.05% weight, preferably up to
The component of 0.01% weight.
" carboxylic acid substantially free of sponifiable and saponification " refers to, if there are one or more of carboxylics in modified pitch
Acid, then the total amount of carboxylic acid is no more than 0.05% weight, preferably more than 0.01% weight relative to the total weight of the modified pitch
Amount.
Saponifiable carboxylic acid especially can be the saturated or unsaturated branch containing about 12 to about 24 carbon atoms or straight
Chain fatty acid.Sponifiable carboxylic acid includes stearic acid, oleic acid, linoleic acid, linolenic acid and its mixture.
A kind of preparation method of road special multi-modified asphalt, comprising the following steps:
(1) basic asphalt, hydroxide XOH, diol compound, ash content, granulate mixture and amine additive are added molten
Melt in mixing apparatus；
(2) by the processing temperature of melt mixing equipment be set as 150-200 DEG C, shearing rotating speed be set as 3000-
5000rpm mixes 60-90min；
(3) the mixed mixture of melt mixing equipment is squeezed out by extruder；
(4) mixture after extrusion is cooled down using cooling equipment, stores, packs.
Advantageous effects obtained by the present invention are:
(1) amine additive and hydroxide XOH (X=Na, Ca, Mg, Li or K) are introduced into modified pitch by the present invention.With
The modified pitch of same levels is compared, and ductility and softening temperature are improved.In addition, when being used for road, bonding force and anti-
Fragility and hollow formation are maintained and even improve.
(2) present invention has good sound absorption properties, using the granulate mixture for meeting specified particle size distribution to minimize
Rolling noise between road surface and the vehicles.
(3) ash content is introduced into modified pitch by the present invention, and because ash content has cementing property, liquid water can be reacted with ash content
To complete hydro-combination process, so that liquid water is removed, reduce the curing time of modified pitch in this way.
Specific embodiment
Technical solution of the present invention is described in more detail With reference to embodiment.
Embodiment 1
A kind of modified pitch, it includes the components of following parts by weight: 75 parts of basic asphalt, 3 parts of hydroxide XOH,
Middle X=Na, Ca, Mg, Li or K, 1 part of diol compound, 3 parts of ash content, 2 parts of the granulate mixture of at least one hydrocarbon adhesive and extremely
It is a kind of 3 parts of amine additive few.
A kind of preparation method of road special multi-modified asphalt, comprising the following steps:
(1) basic asphalt, hydroxide XOH, diol compound, ash content, granulate mixture and amine additive are added molten
Melt in mixing apparatus；
(2) by the processing temperature of melt mixing equipment be set as 170 DEG C, shearing rotating speed be set as 3500rpm, mix
70min；
(3) the mixed mixture of melt mixing equipment is squeezed out by extruder；
(4) mixture after extrusion is cooled down using cooling equipment, stores, packs.
Embodiment 2
A kind of modified pitch, it includes the components of following parts by weight: 80 parts of basic asphalt, 5 parts of hydroxide XOH,
Middle X=Na, Ca, Mg, Li or K, 2 parts of diol compound, 4 parts of ash content, 3 parts of the granulate mixture of at least one hydrocarbon adhesive and extremely
It is a kind of 4 parts of amine additive few.
A kind of preparation method of road special multi-modified asphalt, comprising the following steps:
(1) basic asphalt, hydroxide XOH, diol compound, ash content, granulate mixture and amine additive are added molten
Melt in mixing apparatus；
(2) by the processing temperature of melt mixing equipment be set as 180 DEG C, shearing rotating speed be set as 4000rpm, mix
80min；
(3) the mixed mixture of melt mixing equipment is squeezed out by extruder；
(4) mixture after extrusion is cooled down using cooling equipment, stores, packs.
Embodiment 3
A kind of modified pitch, it includes the components of following parts by weight: 85 parts of basic asphalt, 7 parts of hydroxide XOH,
Middle X=Na, Ca, Mg, Li or K, 2 parts of diol compound, 1 part of ash content, 1 part of the granulate mixture of at least one hydrocarbon adhesive and extremely
It is a kind of 3 parts of amine additive few
A kind of preparation method of road special multi-modified asphalt, comprising the following steps:
(1) basic asphalt, hydroxide XOH, diol compound, ash content, granulate mixture and amine additive are added molten
Melt in mixing apparatus；
(2) by the processing temperature of melt mixing equipment be set as 200 DEG C, shearing rotating speed be set as 5000rpm, mix
90min；
(3) the mixed mixture of melt mixing equipment is squeezed out by extruder；
(4) mixture after extrusion is cooled down using cooling equipment, stores, packs.
Comparative example 1
Except ash content is free of in raw material, other preparation processes and embodiment 3 are consistent.
Comparative example 2
Except the granulate mixture of adhesive not hydrocarbonaceous in raw material, other preparation processes and embodiment 3 are consistent.
Comparative example 3
Except additive not amine-containing in raw material and hydroxide XOH, other preparation processes and embodiment 3 are consistent.
Comparative example 4
Using commercially available modified asphalt as comparative example 4.
Experimental example 1
The embodiment 1-3 and comparative example 1-4 pitch prepared is tested for the property, test method is referring to GB/T 494-
2010, test result see the table below 1.
1 performance test of modified bitumen result of table
Note: the result of noise level shown in upper table 1 corresponds to the vehicle travelled with the speed of 90km/h, and 20
It is expressed in decibels at a temperature of DEG C.
As can be seen that comparative example 1 is because of no addition ash content from upper table 1, curing time is apparently higher than embodiment 1-3；
Comparative example 2 is apparently higher than embodiment 1-3 because of no granulate mixture for adding hydrocarbon adhesive, noise；Comparative example 3 is not because adding
Add amine additive and hydroxide XOH, 5 DEG C of ductilities and softening point are significantly lower than embodiment 1-3.
Experimental example 2
170 DEG C, 180 DEG C, 190 DEG C are set by the processing temperature of melt mixing equipment respectively, shearing rotating speed is set as
3500rpm mixes 70min, and modified pitch number obtained is T1, T2, T3 performance such as the following table 2:
| Project | Needle penetration (mm) | Softening point (DEG C) | 5 DEG C of ductilities (cm) |
| T1 | 54.2 | 85.2 | 35.1 |
| T2 | 54.6 | 85.6 | 35.5 |
| T3 | 54.1 | 85.1 | 35.0 |
2 processing temperature of table is 170 DEG C, 180 DEG C, 190 DEG C of performance test of modified bitumen results
As can be seen from Table 2, for processing temperature at 180 DEG C, performance of modified bitumen obtained is best.
Experimental example 3
60min, 80min, 90min are set by the incorporation time of melt mixing equipment respectively, shearing rotating speed is set as
3500rpm, processing temperature are 180 DEG C, and modified pitch number obtained is M1, M2, M3 performance such as the following table 3:
| Project | Needle penetration (mm) | Softening point (DEG C) | 5 DEG C of ductilities (cm) |
| M1 | 54.0 | 85.1 | 35.2 |
| M2 | 54.5 | 85.5 | 35.6 |
| M3 | 54.1 | 85.2 | 35.1 |
3 incorporation time of table is 60min, 80min, 90min performance test of modified bitumen result
As can be seen from Table 3, when incorporation time is 80min, performance of modified bitumen obtained is best.
Experimental example 4
3000rpm, 4000rpm, 5000rpm are set by the shearing rotating speed of melt mixing equipment respectively, incorporation time is
80min, processing temperature are 180 DEG C, and modified pitch number obtained is S1, S2, S3 performance such as the following table 4:
| Project | Needle penetration (mm) | Softening point (DEG C) | 5 DEG C of ductilities (cm) |
| S1 | 54.1 | 85.2 | 35.3 |
| S2 | 54.7 | 85.6 | 35.7 |
| S3 | 54.0 | 85.0 | 35.0 |
4 shearing rotating speed of table is 3000rpm, 4000rpm, 5000rpm performance test of modified bitumen result
As can be seen from Table 4, when shearing rotating speed is 4000rpm, performance of modified bitumen obtained is best.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (8)
1. a kind of road special multi-modified asphalt, which is characterized in that the component comprising following parts by weight: 70-85 parts of basic asphalt,
1-8 parts of hydroxide XOH, wherein X=Na, Ca, Mg, Li or K, 1-3 parts of diol compound, 2-5 parts of ash content, at least one hydrocarbon
1-3 parts of the granulate mixture of adhesive and at least one 3-5 parts of amine additive.
2. road special multi-modified asphalt according to claim 1, which is characterized in that the modified pitch is substantially free of can
The carboxylic acid of saponification and saponification.
3. road special multi-modified asphalt according to claim 2, which is characterized in that the hydroxide XOH is selected from NaOH
And KOH, and preferably NaOH.
4. road special multi-modified asphalt according to claim 3, which is characterized in that the diol compound is selected from short chain two
Alcohol, EG (ethylene glycol), 1,4-BD (1,4- butanediol), 1,5-PD (1,5- pentanediol), 1,6-HD (1,6-HD) and CHDM
At least one of (1,4 cyclohexane dimethanol).
5. road special multi-modified asphalt according to claim 4, which is characterized in that the granulate mixture be selected from filler,
Or mixtures thereof fine aggregate, sand, fine sand, coarse sand, clast aggregation, gravel aggregate, rubble, dust aggregate, and the particle is mixed
Close object and meet the following conditions: a) the granulate mixture component of 80-90% weight has the size less than 6.0mm；B) 70-85% weight
The granulate mixture component of amount has the size less than 4.8mm；C) the granulate mixture component of 45-78% weight has and is less than
The size of 3.5mm；D) the granulate mixture component of 20-40% weight has the size less than 2mm；E) of 15-30% weight
Grain component of mixture has the size less than 1mm；F) the granulate mixture component of 11-16% weight has the ruler less than 0.8mm
It is very little；G) the granulate mixture component of 8-12% weight has the size less than 0.3mm；H) the granulate mixture group of 5-8% weight
Divide with the size less than 0.12mm.
6. road special multi-modified asphalt according to claim 1, which is characterized in that the ash content are as follows: 25%-85%'s
The SiO of ZnO, 10%-55%2, 2%-8% Fe2O3With the MgO of 2%-5%.
7. road special multi-modified asphalt according to claim 1, which is characterized in that the amine additive be selected from amine, diamines,
Polyamines, alkyl amido amine, polyamide-polyamino and imidazoline.
8. a kind of preparation method of road special multi-modified asphalt as claimed in claim 1, which is characterized in that including with
Lower step:
(1) melting is added in basic asphalt, hydroxide XOH, diol compound, ash content, granulate mixture and amine additive to mix
It closes in equipment；
(2) by the processing temperature of melt mixing equipment be set as 150-200 DEG C, shearing rotating speed be set as 3000-5000rpm, mix
Close 60-90min；
(3) the mixed mixture of melt mixing equipment is squeezed out by extruder；
(4) mixture after extrusion is cooled down using cooling equipment, stores, packs.
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| CN1400245A (en) * | 2001-07-26 | 2003-03-05 | 金贤俊 | Pitch additive, mixture containing the additive and the production process and application of the mixture |
| EP1849916A2 (en) * | 2006-04-25 | 2007-10-31 | Colas | Compositions for the upper layers of pavements having anti-noise properties |
| FR2977588A1 (en) * | 2011-07-04 | 2013-01-11 | Colas Sa | Bituminous composition, useful for producing coating comprising an upper layer of pavement having antinoise coating, comprises a granular mixture and hydrocarbon binder, which is elastomeric modified bitumen |
| KR20130004860A (en) * | 2011-07-04 | 2013-01-14 | 콜라스 | A asphalt mix compositions for upper layers of anti-noise pavements |
| WO2013017892A1 (en) * | 2011-08-03 | 2013-02-07 | Liverpool John Moores University | Improvements in and relating to bituminous paving |
| EP3401367A1 (en) * | 2017-05-09 | 2018-11-14 | Total Marketing Services | Bituminous compositions comprising an amine additive and a hydroxide, their preparation process and applications |
| KR101979004B1 (en) * | 2019-03-07 | 2019-05-20 | 주식회사 씨씨티연구소 | Asphalt modifier and modified asphalt composition comprising the same |
-
2019
- 2019-09-20 CN CN201910893989.6A patent/CN110437639A/en active Pending
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|---|---|---|---|---|
| CN1400245A (en) * | 2001-07-26 | 2003-03-05 | 金贤俊 | Pitch additive, mixture containing the additive and the production process and application of the mixture |
| EP1849916A2 (en) * | 2006-04-25 | 2007-10-31 | Colas | Compositions for the upper layers of pavements having anti-noise properties |
| FR2977588A1 (en) * | 2011-07-04 | 2013-01-11 | Colas Sa | Bituminous composition, useful for producing coating comprising an upper layer of pavement having antinoise coating, comprises a granular mixture and hydrocarbon binder, which is elastomeric modified bitumen |
| KR20130004860A (en) * | 2011-07-04 | 2013-01-14 | 콜라스 | A asphalt mix compositions for upper layers of anti-noise pavements |
| WO2013017892A1 (en) * | 2011-08-03 | 2013-02-07 | Liverpool John Moores University | Improvements in and relating to bituminous paving |
| EP3401367A1 (en) * | 2017-05-09 | 2018-11-14 | Total Marketing Services | Bituminous compositions comprising an amine additive and a hydroxide, their preparation process and applications |
| KR101979004B1 (en) * | 2019-03-07 | 2019-05-20 | 주식회사 씨씨티연구소 | Asphalt modifier and modified asphalt composition comprising the same |
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| 于今昌编: "《中学物理探究读本 破译声波密码》", 31 January 2012, 长春出版社 * |
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Application publication date: 20191112 |
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