CN108250772A - Asphalt modifier, modified pitch and asphalt - Google Patents
Asphalt modifier, modified pitch and asphalt Download PDFInfo
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- CN108250772A CN108250772A CN201711261302.4A CN201711261302A CN108250772A CN 108250772 A CN108250772 A CN 108250772A CN 201711261302 A CN201711261302 A CN 201711261302A CN 108250772 A CN108250772 A CN 108250772A
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- asphalt
- asphalt modifier
- pitch
- modified pitch
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- 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
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- 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
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The present invention relates to a kind of asphalt modifier, modified pitch and asphalt, the asphalt modifier is prepared by the raw material of following weight parts：15 25 parts of polybutene, 25 35 parts of polytetrafluoroethylene (PTFE), 13 parts of aluminium oxide, 1 10 parts of fire retardant, 0.5 3.5 parts of crosslinking agent.Asphalt modifier of the present invention has preferable flame retardant effect, and can reduce smog when pitch burns, and then reduce the loss caused by fire, meanwhile, which can improve the anti-fatigue ability of pitch, to improve the service life of bituminous paving.
Description
Technical field
The present invention relates to asphalt modification technical fields, and in particular to a kind of asphalt modifier, modified pitch and pitch mix
Close material.
Background technology
Since first highway was built from 1989, the highway in China has obtained quick development, to 2010
The end of the year has had reached 6.5 ten thousand kilometers, is only second to the U.S., occupies the 2nd, the world.The fast development and construction of highway strengthen
Contact between city shortens passenger-cargo time on way, promotes the cultural exchanges of different geographical, enhances between nationality
Unite, important facilitation is played to the development of entire national economy.
The highway built uses semi-rigid type base or cement concrete pavement mostly.Semi-rigid sub-base material is to temperature
Degree and humidity variation are more sensitive, and desciccation crack and warm plastic forming can be generated in its intensity forming process and during operation.
Has crannied base in the case where dry, warm shrinkage stress and load further act on, crack tip generates larger stress and collects
In, leading to basic crack, reflection up to perforation, forms reflection crack upwards along asphalt surface course bottom.Live core boring sampling observes table
It is bright, it is a great deal of in crack that the reflection crack that asphalt surface course is caused to crack first is split for semi-rigid type base, especially in temperature, wet variation
Acutely area, this ratio often exceed 50%.But it since semi-rigid type base low cost, construction technology are ripe, will use for a long time
In the construction of following highway.
Cement concrete pavement has many advantages, such as that intensity is high, rigidity is big, diffusion weight bearing power is strong, stability is good, but it is handed over
There are many problems for understanding and considerate condition, technology status and maintenance and behaviour in service.The cement concrete pavement that early stage builds mostly arrives
Or close to its service life, so that there is structural destruction or functional defect, highway use quality is seriously affected,
It is badly in need of maintenance and renovation.At this stage, as Freeway Traffic Volume increasingly increases, axis carries increasingly heavy loading so that builds in the recent period
Cement concrete pavement is after being open to traffic less than several years or different degrees of part sedimentation occurs in shorter time, disconnected plate isostructuralism is broken
It is bad.Therefore, a large amount of early stages and the cement concrete pavement built in the recent period will all face maintenance and renovation.Generally acknowledged improvement cement at present
Concrete road surface performance most effective way is the repaving asphalt coat on Old cement concrete.If however, directly in
Reflection crack will inevitably occur in repaving asphalt coat on Old cement concrete.
Invention content
For the deficiencies in the prior art, the first technical problem to be solved by the present invention is to provide a kind of pitch and changes
Property agent, is prepared by the raw material of following weight parts：15-25 parts of polybutene, 25-35 parts of polytetrafluoroethylene (PTFE), 1-3 parts of aluminium oxide,
1-10 parts of fire retardant, 0.5-3.5 parts of crosslinking agent.
Preferably, the fire retardant is a kind of in trichloroethyl phosphate, hexaphenoxycyclotriphosphazene, tricresyl phosphate
Or a variety of mixture.
It is highly preferred that the fire retardant is mixed by trichloroethyl phosphate, hexaphenoxycyclotriphosphazene, tricresyl phosphate
Form, the trichloroethyl phosphate, hexaphenoxycyclotriphosphazene, tricresyl phosphate mass ratio be (1-3)：(1-3)：(1-
3)。
Preferably, the crosslinking agent be tellurium diethyl dithiocarbamate, it is zinc dibenzyl dithiocarbamate, different
One or more mixture in aluminium propoxide.
It is highly preferred that the crosslinking agent by tellurium diethyl dithiocarbamate, zinc dibenzyl dithiocarbamate,
Aluminium isopropoxide mixes, the tellurium diethyl dithiocarbamate, zinc dibenzyl dithiocarbamate, aluminium isopropoxide
Mass ratio is (1-3)：(1-3)：(1-3).
The second technical problem to be solved by the present invention is to provide a kind of modified pitch for including the asphalt modifier, by
The raw material of following weight parts is prepared：95-105 parts of pitch, 5-25 parts of asphalt modifier, 0.1-0.5 parts of sulphur.
The third technical problem to be solved by the present invention there is provided a kind of asphalt for including the modified pitch,
It is prepared by the raw material of following weight parts：15-25 parts of modified pitch, 25-45 parts of cement, 15-25 parts of river sand, limestone gravel
35-45 parts, 1-5 parts of glass fibre, 0.5-1.5 parts of 3- chloropropylmethyldimethoxysilanes, 10-30 parts of water.
Asphalt modifier of the present invention has preferable flame retardant effect, and can reduce smog when pitch burns, and then reduce
Loss caused by fire, meanwhile, which can improve the anti-fatigue ability of pitch, to improve asphalt road
The service life in face.
Specific embodiment
With reference to embodiment, the present invention is described further, as described below, is only the preferable implementation to the present invention
Example, not limits the present invention, any person skilled in the art is possibly also with the disclosure above
Technology contents be changed to the equivalent embodiment changed on an equal basis.Without departing from the concept of the present invention, according to the present invention
Any simple modification for being made to following embodiment of technical spirit or equivalent variations, all fall in protection scope of the present invention.
Each raw material introduction in embodiment：
River sand opens 20 mesh natural river sands of stone ore product processing factory offer using Lingshou County.
3- chloropropylmethyldimethoxysilanes, No. CAS：18171-19-2.
Cement, the P.O 52.5R portland cements produced using Shandong Shan Lv Cement Co., Ltds.
Limestone gravel, grain size 7mm.
Glass fibre, the alkali-proof glass using the model GF-5 of Nanjing Painier Technology Co., Ltd.'s production are fine
Dimension, a diameter of 5-13 μm, length 6-19mm.
Polybutene uses polyisobutene of the trade mark that great Lin companies of South Korea provide for PB1400.
Polytetrafluoroethylene (PTFE) uses polytetrafluoroethylene powder of the trade mark that DuPont Corporation provides for MP1100.
Aluminium oxide, No. CAS：1344-28-1, grain size 20nm.
Pitch, using No. 70 A grades of road asphalts of sinopec East Sea board.
Sulphur, No. CAS：7704-34-9.
Trichloroethyl phosphate, No. CAS：306-52-5.
Hexaphenoxycyclotriphosphazene, No. CAS：1184-10-7.
Tricresyl phosphate, No. CAS：1330-78-5.
Tellurium diethyl dithiocarbamate, No. CAS：20941-65-5.
Zinc dibenzyl dithiocarbamate, No. CAS：14726-36-4.
Aluminium isopropoxide, No. CAS：555-31-7.
Embodiment 1
Asphalt modifier raw material (parts by weight)：20 parts of polybutene, 30 parts of polytetrafluoroethylene (PTFE), 2 parts of aluminium oxide, fire retardant 7.5
Part, 1.5 parts of crosslinking agent.Each raw material is uniformly mixed up to asphalt modifier.
The fire retardant is 1 in mass ratio by trichloroethyl phosphate, hexaphenoxycyclotriphosphazene, tricresyl phosphate:
1:1 is uniformly mixed to obtain.
The crosslinking agent is by tellurium diethyl dithiocarbamate, zinc dibenzyl dithiocarbamate, aluminium isopropoxide
It is 1 in mass ratio:1:1 is uniformly mixed to obtain.
Modified pitch raw material (parts by weight) comprising above-mentioned asphalt modifier：100 parts of pitch, 15 parts of asphalt modifier, sulphur
0.2 part of sulphur.
It is prepared by modified pitch：
(1) asphalt modifier is added in pitch, in high-speed shearing machine down cut 30 minutes at 190 DEG C, shears revolution
4000r/min obtains shearing material；
(2) by shearing material, stirring development 120 minutes, holding temperature are 190 DEG C on high speed dispersor, revolution 600r/
Min added in sulphur at 6 minutes after stirring starts, continues to stir, obtain modified pitch.
Asphalt raw material (parts by weight) comprising above-mentioned modified pitch：20 parts of modified pitch, 35 parts of cement, river sand 20
Part, 40 parts of limestone gravel, 3 parts of glass fibre, 1 part of 3- chloropropylmethyldimethoxysilanes, 20 parts of water.By cement, river sand,
Limestone gravel, glass fibre, 3- chloropropylmethyldimethoxysilanes are added in concrete mixer and are uniformly mixed, so
Water is added in afterwards and continues stirring to being uniformly mixed, and is eventually adding modified pitch and is continued stirring to uniformly mixed up to asphalt.
Embodiment 2
It is substantially the same manner as Example 1, it differs only in：The fire retardant is by hexaphenoxycyclotriphosphazene, tricresyl phosphate
Toluene ester is 1 in mass ratio:1 is uniformly mixed to obtain.
Embodiment 3
It is substantially the same manner as Example 1, it differs only in：The fire retardant is by trichloroethyl phosphate, phosphate trimethylbenzene
Ester is 1 in mass ratio:1 is uniformly mixed to obtain.
Embodiment 4
It is substantially the same manner as Example 1, it differs only in：The fire retardant is by trichloroethyl phosphate, six phenoxy group rings
Three phosphonitriles are 1 in mass ratio:1 is uniformly mixed to obtain.
Embodiment 5
It is substantially the same manner as Example 1, it differs only in：The crosslinking agent for zinc dibenzyl dithiocarbamate,
Aluminium isopropoxide is 1 in mass ratio:1 is uniformly mixed to obtain.
Embodiment 6
It is substantially the same manner as Example 1, it differs only in：The crosslinking agent for tellurium diethyl dithiocarbamate,
Aluminium isopropoxide is 1 in mass ratio:1 is uniformly mixed to obtain.
Embodiment 7
It is substantially the same manner as Example 1, it differs only in：The crosslinking agent for tellurium diethyl dithiocarbamate,
Zinc dibenzyl dithiocarbamate is 1 in mass ratio:1 is uniformly mixed to obtain.
Test case 1
Traditional performance and flame retardant property test are carried out to the modified pitch of embodiment 1-7, according to JTG E20-2011《Highway
Engineering pitch and Asphalt Mixture Experiment regulation》Regulation carries out basic performance tests, and with reference to GB/T8627-2007《Building wood
Material burning or the smoke density test method decomposed》Regulation carries out smoke density experiment.Specific test result is shown in Table 1.
Table 1：Performance test data table
Comparing embodiment 1 and embodiment 2-4, embodiment 1 (trichloroethyl phosphate, hexaphenoxycyclotriphosphazene, tripotassium phosphate
Phenyl ester compounds) traditional performance and flame retardant property be substantially better than embodiment 2-4 (trichloroethyl phosphate, hexaphenoxycyclotriphosphazene, phosphorus
Both arbitrary compounding in sour front three phenyl ester).Comparing embodiment 1 and embodiment 5-7,1 (diethyldithiocar bamic acid of embodiment
Tellurium, zinc dibenzyl dithiocarbamate, aluminium isopropoxide compounding) traditional performance and flame retardant property be substantially better than embodiment 5-7 (two
Both arbitrary compounding in diethyldithiocar bamic acid tellurium, zinc dibenzyl dithiocarbamate, aluminium isopropoxide).
Test case 2
Asphalt conventional index compression strength that embodiment 1 and embodiment 5-7 are prepared, chloride-penetration resistance
Performance is tested.Intensity test is with reference to the clear Master's thesis of sweet ice《The mix-design and its performance of pervious concrete
Research》In 2.3 section in method carry out；Chloride-penetration resistance testing method is with reference to the Master's thesis of Xu Qinglei《Nanometer two
Influence and Study on mechanism of the silica to cement-based material performance》Middle 2.2.5 chloride-penetration resistances experiment carries out, specific to survey
Test result is shown in Table 2.
Table 2：Conventional index test result table
Comparing embodiment 1 and embodiment 5-7, embodiment 1 (tellurium diethyl dithiocarbamate, dibenzyl dithio ammonia
Base zinc formate, aluminium isopropoxide compounding) conventional index compression strength, Anti-Chloride Ion Penetration be substantially better than embodiment 5-7 (diethyls
Both arbitrary compounding in base aminodithioformic acid tellurium, zinc dibenzyl dithiocarbamate, aluminium isopropoxide).
Claims (7)
1. a kind of asphalt modifier, which is characterized in that be prepared by the raw material of following weight parts：15-25 parts of polybutene, poly- four
25-35 parts of vinyl fluoride, 1-3 parts of aluminium oxide, 1-10 parts of fire retardant, 0.5-3.5 parts of crosslinking agent.
2. asphalt modifier as described in claim 1, it is characterised in that：The fire retardant is trichloroethyl phosphate, six benzene
One or more mixture in three phosphonitrile of oxygroup ring, tricresyl phosphate.
3. asphalt modifier as claimed in claim 2, it is characterised in that：The fire retardant is by trichloroethyl phosphate, six benzene
Three phosphonitrile of oxygroup ring, tricresyl phosphate mix, the trichloroethyl phosphate, hexaphenoxycyclotriphosphazene, tripotassium phosphate
The mass ratio of phenyl ester is（1-3）：（1-3）：（1-3）.
4. the asphalt modifier as described in any one of claim 1-3, it is characterised in that：The crosslinking agent is diethyl two
One or more mixture in thiocarbamic acid tellurium, zinc dibenzyl dithiocarbamate, aluminium isopropoxide.
5. asphalt modifier as claimed in claim 4, it is characterised in that：The crosslinking agent is by diethyl-dithio amino first
Sour tellurium, zinc dibenzyl dithiocarbamate, aluminium isopropoxide mix, the tellurium diethyl dithiocarbamate, dibenzyl
Base zinc dithiocarbamate, aluminium isopropoxide mass ratio be（1-3）：（1-3）：（1-3）.
6. a kind of modified pitch for including any one of the claim 1-5 asphalt modifiers, it is characterised in that：By following heavy
The raw material of amount part is prepared：95-105 parts of pitch, 5-25 parts of asphalt modifier, 0.1-0.5 parts of sulphur.
7. a kind of asphalt for including modified pitch described in claim 6, it is characterised in that：By the raw material of following weight parts
It is prepared：15-25 parts of modified pitch, 25-45 parts of cement, 15-25 parts of river sand, 35-45 parts of limestone gravel, glass fibre 1-
5 parts, 0.5-1.5 parts of 3- chloropropylmethyldimethoxysilanes, 10-30 parts of water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711261302.4A CN108250772A (en) | 2017-12-04 | 2017-12-04 | Asphalt modifier, modified pitch and asphalt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711261302.4A CN108250772A (en) | 2017-12-04 | 2017-12-04 | Asphalt modifier, modified pitch and asphalt |
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| Publication Number | Publication Date |
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| CN108250772A true CN108250772A (en) | 2018-07-06 |
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ID=62720976
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| CN201711261302.4A Pending CN108250772A (en) | 2017-12-04 | 2017-12-04 | Asphalt modifier, modified pitch and asphalt |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109517395A (en) * | 2018-11-27 | 2019-03-26 | 华叶莹 | A kind of flame-retardant high-strength asphalt additive and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101074321A (en) * | 2006-05-19 | 2007-11-21 | 中国石油化工股份有限公司 | Road-surface asphalt modified additive at normal temperature and its production |
| CN101475342A (en) * | 2009-01-13 | 2009-07-08 | 深圳市市政工程总公司 | Fire resistant emulsified bitumen thin paste sealing material and preparation thereof |
| CN105295267A (en) * | 2015-10-10 | 2016-02-03 | 广东石油化工学院 | Novel asphalt modifier |
| CN106084391A (en) * | 2016-06-20 | 2016-11-09 | 王璐 | A kind of municipal administration road and bridge safeguard asphalt modification inorganic agent |
-
2017
- 2017-12-04 CN CN201711261302.4A patent/CN108250772A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101074321A (en) * | 2006-05-19 | 2007-11-21 | 中国石油化工股份有限公司 | Road-surface asphalt modified additive at normal temperature and its production |
| CN101475342A (en) * | 2009-01-13 | 2009-07-08 | 深圳市市政工程总公司 | Fire resistant emulsified bitumen thin paste sealing material and preparation thereof |
| CN105295267A (en) * | 2015-10-10 | 2016-02-03 | 广东石油化工学院 | Novel asphalt modifier |
| CN106084391A (en) * | 2016-06-20 | 2016-11-09 | 王璐 | A kind of municipal administration road and bridge safeguard asphalt modification inorganic agent |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109517395A (en) * | 2018-11-27 | 2019-03-26 | 华叶莹 | A kind of flame-retardant high-strength asphalt additive and preparation method thereof |
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Application publication date: 20180706 |