CN106436521B - A kind of asphalt road laying method - Google Patents
A kind of asphalt road laying method Download PDFInfo
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- CN106436521B CN106436521B CN201610813078.4A CN201610813078A CN106436521B CN 106436521 B CN106436521 B CN 106436521B CN 201610813078 A CN201610813078 A CN 201610813078A CN 106436521 B CN106436521 B CN 106436521B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
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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
- C04B26/28—Polysaccharides or derivatives thereof
- C04B26/285—Cellulose or derivatives thereof
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
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- Civil Engineering (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a kind of asphalt road laying methods, belong to method field of paving the way.A kind of asphalt road laying method of the invention, including measuring alignment, including conducting wire, middle line, bench mark repetition measurement, section inspection and mend survey, construction lofting is carried out before going into operation, it releases shoulder, groove, slope foot, gutter banket, borrow the specific locations such as Tu Chang, indicate its profile, trees, weeds, shrub within the scope of route land used etc. should remove, and dig five steps such as roadbed.A kind of asphalt road laying method of the invention has flatness high, the situations such as no local compactness is insufficient, demixing temperature is serious occur, road surface response to temperature can be good, with favorable elasticity and ageing-resistant performance, it is not easy to melt trickling under high temperature, good toughness is not easily broken under low temperature, can satisfy super highway requirement, the characteristics of road pavement high temperature makes full use of simultaneously, carries out solar power generation.
Description
Technical field
It paves the way method the present invention relates to one kind, especially a kind of asphalt road laying method.
Background technique
Bituminous pavement is because of its superior service performance and driving superiority, it has also become the main shape of Chinese Higher grade highway
Formula, but ordinary road pitch determines that its temperature-sensitive performance is poor due to the Nomenclature Composition and Structure of Complexes of itself, elasticity and loss of properties on aging, it is high
Warm easily trickling, the easy fragmentation of low temperature, it is difficult to meet the requirement of high-grade highway.Existing asphalt pavement of highway is ground simultaneously
When pressure construction, first pressing generally uses small tonnage steel roller static pressure, is first rolled with large-tonnage steel roller when pressing again, then
It is rolled again with pneumatic-tired rollers, finally receives face with steel roller, complete final pressure.Traditional compaction technology is separate unit steel wheel pressure road
Machine rolls respectively with pneumatic-tired rollers, the consequence generated in this way be roll overlong time and temperature decline it is excessive, it cannot be guaranteed that
Roller compaction construction is completed under high temperature, and leakage pressure, demixing temperature are serious, flatness is low, and local compactness is insufficient, it is difficult to ensure that construction
Quality.
Summary of the invention
Goal of the invention of the invention is: in view of the above problems, a kind of flatness height is provided, without local compactness
It is insufficient, demixing temperature is serious etc., and situations occur, road surface response to temperature can be good, has favorable elasticity and an ageing-resistant performance, under high temperature not
Easily melt trickling, good toughness is not easily broken under low temperature, can satisfy super highway requirement, while road pavement high temperature is sufficiently sharp
With carrying out the bituminous pavement laying method of solar power generation.
The technical solution adopted by the invention is as follows:
A kind of asphalt road laying method of the present invention, comprising the following steps:
Step 1 measures alignment, including conducting wire, middle line, bench mark repetition measurement, section inspection and benefit are surveyed, and are carried out before going into operation
Construction lofting releases shoulder, groove, slope foot, gutter banket or borrows Tu Chang, its profile indicated, in route land used range
Interior trees, weeds or shrub should remove, and dig roadbed；
Step 2, it is filling roadbed using horizontal slice, it is divided into horizontal level according to cross section overall with, successively fills upwards,
First layer is filled using mixed slag, fill with a thickness of 30cm, the second layer is filled using rubble, fill with a thickness of 20cm, third
Layer is filled using mixed slag, fill with a thickness of 8cm；After completion is filled, TGXG and low is laid with perpendicular to embankment axis direction
Shielding wire is pressed, Bridgehead by Blastig processing section direct route dike axis direction is laid with TGXG；Grid is laid within 48 hours latter, is used
Cement, mixed slag and rubble mass ratio 3:2:2 spice, are laid with the 4th layer of roadbed, laying with a thickness of 25cm, wherein low pressure shielding
The both ends of electric wire are higher than roadbed；
Step 3 uniformly sprays one layer of atomization pitch in road bed, and covers one layer of 6 needle sunshade net；
Asphalt mixture is laid on road bed, laying depth 8cm, in the process spread out and put on by the machine of spreading out and putting on by step 4
In rolled by road roller road pavement, every group road roller first pressing 1 time, press 4 times, pressed using low frequency and amplitude when first pressing again
It is real, advance when pressing again and use frequency low-amplitude, when retrogressing is compacted using high frequency high-amplitude, in roller compaction process, carries out misty spray
Water, the amount of water sprayed are 0.07L/sm；
Step 5, is laid with solar photovoltaic assembly in the middle part of road surface, and the photovoltaic module passes through pre-buried low pressure shielding wire
It is connected with photovoltaic DC-to-AC converter.
By adopting the above-described technical solution, the surface evenness being laid with is high, compactness is close, not without local compactness
The situations such as foot, demixing temperature be serious occur, and can satisfy super highway requirement, are rolled by combined type, are efficiently solved
Problems of the prior art, meanwhile, pavement temperature in direct sunlight is usually higher, passes through and is laid with photovoltaic
Component, road pavement high temperature make full use of, and carry out solar power generation, are effectively utilized to the energy, can be to a certain extent
Alleviate the pressure of energy demand.
A kind of asphalt road laying method of the invention, in the step 2, the partial size of rubble is not more than 5cm, wherein grain
Total amount of the diameter less than 0.075mm is no more than the 10% of total amount, and sundries is free of in the rubble, and the rubble intensity is not less than 15MP；
For the water content of the mixed slag less than 5.3%, the intensity of the mixed slag is not less than 15MP, and the mixed slag particle diameter is less than 150mm, wherein
Total amount of the partial size less than 20mm is no more than the 30% of total amount, and wherein total amount of the partial size less than 0.075mm is no more than the 10% of total amount.
A kind of asphalt road laying method of the invention is bound using nylon buckle in blossom type between the TGXG
Connection, the lap of splice of the TGXG are greater than 30cm, and spacing is not more than 20cm.
By adopting the above-described technical solution, the dead load and live load loading capability of roadbed are strong, it is able to bear pavement structure certainly
The weight of body, at the same be able to bear vehicle driving by road surface propagate come weight, by can be effective against geology, drop
The invasion and destruction of self condition such as rain, weather variation, have reasonable rigidity, can guarantee that vehicle is flat in running at high speed
Stability and comfort.
A kind of asphalt road laying method of the invention, for the asphalt mixture by 78 parts of modified pitch of mass parts, 51 parts broken
Stone, 24 parts of styrene-butadiene-styrene triblock copolymer, 20 parts of polylactic acid-succinic acid fourth diester-polylactic acid three block
Copolymer, 8 parts of potassium formates and 11 parts of lignin fibre compositions, the polylactic acid-succinic acid fourth diester-polylactic acid triblock copolymer
The structural formula of object is。
By adopting the above-described technical solution, bituminous pavement has good Rut resistance and Pintsch process ability, reduce tired
Strain wound, glass and temperature sensitivity, while hot storage stability is preferable, delaying aging, greatly reduces existing pitch old
Become hard crisp after change, lack flexibility, the phenomenon that cracking and fatigue crack generates, and improves the flexibility of bituminous pavement, prolongs
Slow reflection cracking in a pavement, the functions such as enhancing road surface deicing, noise reduction, road surface response to temperature can be good, has favorable elasticity and resistance to ag(e)ing
Can, it is not easy to melt trickling under high temperature, good toughness is not easily broken under low temperature.
The partial size of a kind of asphalt road laying method of the invention, the rubble in the asphalt mixture is not more than 3cm, wherein
Total amount of the partial size less than 0.075mm is no more than the 7% of total amount, is free of sundries in the rubble, the rubble intensity is not less than
15MP。
By adopting the above-described technical solution, surface evenness is higher, convenient for rolling compacting, vehicle can be guaranteed in high speed
Stationarity and comfort in traveling.
A kind of asphalt road laying method of the invention, the modified pitch is by 50 parts of liquefied residues of mass parts, 25 parts of friendships
Join agent and 82 parts of matrix pitch compositions.
By adopting the above-described technical solution, being improved well by the extensibility that can increase asphalt modification pitch
Pitch Rut resistance and Pintsch process ability reduce fatigue damage, removing and temperature sensitivity；Matrix drip can be obviously reduced simultaneously
Green dosage reduces the cost for being laid with road surface, moreover it is possible to alleviate liquefied residue bring environmental problem, improve the warp of coal oil project
Ji property.
A kind of asphalt road laying method of the invention, the crosslinking agent are benzaldehyde.
By adopting the above-described technical solution, the complete or collected works in benzaldehyde can open as difunctional and to connect liquefaction residual
Aromatic ring in slag and pitch generates the oligomer with polyaryl methane structure, reduces the temperature sensitivity of pitch.
A kind of asphalt road laying method of the invention, the solar photovoltaic assembly surface are covered with photosensitive wearing layer, institute
Photosensitive wearing layer is stated by 37 parts of toluidine blue-carboxymethyl chitosan-carbon nano-tube films of mass parts, 13 parts of aluminium oxide and 17 parts it is poly-
Ethylene composition, the photosensitive wearing layer with a thickness of 0.2mm.
By adopting the above-described technical solution, solar photovoltaic assembly surface, which is laid with photosensitive wearing layer, not to influence light
While energy transformation efficiency, protection, when vehicle drives through from solar-electricity plate surface, Neng Goubao are provided to solar energy electroplax
Card solar energy electroplax will not be broken, while have good wear-resisting, resistance to compression and ductility.
A kind of asphalt road laying method of the invention, in the step 4, temperature when first pressing inside mixing is 155 ~
170 DEG C, surface temperature is not less than 100 DEG C when rolling end of a period, and rolling wheel should keep cleaning in the construction process, rolling wheel when rolling
Upper to brush a certain amount of interleaving agent or antitack agent, rolling for intersection should roll first since bend is lower on one side on abrupt slope
When, preferably always towards paver direction, compacting should be carried out continuously the driven wheel of road roller, must not be paused.
By adopting the above-described technical solution, rolling by combined type, existing in the prior art ask is efficiently solved
The situations such as the surface evenness of topic, laying is high, and compactness is close, and no local compactness is insufficient, demixing temperature is serious occur, can
Meet super highway requirement.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
1, the situations such as flatness is high, and no local compactness is insufficient, demixing temperature is serious occur, and road surface response to temperature can be good, tool
There are favorable elasticity and ageing-resistant performance, be not easy to melt trickling under high temperature, good toughness is not easily broken under low temperature, can satisfy advanced public affairs
Road requirement, while road pavement high temperature makes full use of, and carries out solar power generation.
2, the dead load of roadbed and live load loading capability are strong, are able to bear the weight of pavement structure itself, are able to bear simultaneously
Vehicle driving by road surface propagate come weight, by can be effective against self condition such as geology, rainfall, weather change
Invasion and destruction, have reasonable rigidity, can guarantee stationarity and comfort of the vehicle in running at high speed.
3, by the way that the extensibility of pitch can be increased asphalt modification, improve pitch Rut resistance and Pintsch process energy well
Power reduces fatigue damage, removing and temperature sensitivity；The dosage of matrix pitch can be obviously reduced simultaneously, reduce and be laid with road surface
Cost, moreover it is possible to alleviate liquefied residue bring environmental problem, improve the economy of coal oil project.
Specific embodiment
The present invention is described in detail below.
In order to make invention objects, technical solutions and advantages be more clearly understood, with reference to embodiments, to the present invention into
Row is further described.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to limit
The fixed present invention.
Embodiment 1
A kind of asphalt road laying method, comprising the following steps:
Step 1 measures alignment, including conducting wire, middle line, bench mark repetition measurement, section inspection and benefit are surveyed, and are carried out before going into operation
Construction lofting releases shoulder, groove, slope foot, gutter banket, borrows the specific locations such as Tu Chang, its profile indicated, in route
Trees, weeds, shrub within the scope of land used etc. should remove, and dig roadbed；
Step 2, it is filling roadbed using horizontal slice, it is divided into horizontal level according to cross section overall with, successively fills upwards,
First layer is filled using mixed slag, fill with a thickness of 30cm, the second layer is filled using rubble, fill with a thickness of 20cm, third
Layer is filled using mixed slag, fill with a thickness of 8cm；After completion is filled, TGXG and low is laid with perpendicular to embankment axis direction
Shielding wire is pressed, Bridgehead by Blastig processing section direct route dike axis direction is laid with TGXG；Grid is laid within 48 hours latter, is used
Cement, mixed slag and rubble mass ratio 3:2:2 spice, are laid with the 4th layer of roadbed, laying with a thickness of 25cm, wherein low pressure shielding
The both ends of electric wire are higher than roadbed；The partial size of rubble is not more than 5cm, and wherein total amount of the partial size less than 0.075mm is no more than total amount
10%, sundries is free of in the rubble, the rubble intensity is not less than 15MP；The water content of the mixed slag is described mixed less than 5.3%
The intensity of slag is not less than 15MP, and the mixed slag particle diameter is less than 150mm, and wherein total amount of the partial size less than 20mm is no more than total amount
30%, wherein total amount of the partial size less than 0.075mm is no more than the 10% of total amount, and being buckled between TGXG using nylon is in blossom type
Binding connection, the lap of splice of the TGXG are greater than 30cm, and spacing is not more than 20cm.
Step 3 uniformly sprays one layer of atomization pitch in road bed, and covers one layer of 6 needle sunshade net；
Asphalt mixture is laid on road bed, laying depth 8cm, in the process spread out and put on by the machine of spreading out and putting on by step 4
In rolled by road roller road pavement, every group road roller first pressing 1 time, press 4 times, pressed using low frequency and amplitude when first pressing again
It is real, advance when pressing again and use frequency low-amplitude, when retrogressing is compacted using high frequency high-amplitude, in roller compaction process, carries out misty spray
Water, the amount of water sprayed are 0.07L/sm；Temperature when first pressing inside mixing is 155 ~ 170 DEG C, surface temperature when rolling end of a period
Not less than 100 DEG C, rolling wheel should keep cleaning in the construction process, brush a certain amount of interleaving agent or anti-when rolling on rolling wheel
Binder, rolling for intersection should be first since bend be lower on one side, when abrupt slope is rolled, the driven wheel of road roller preferably court always
Paver direction, compacting should be carried out continuously, must not pause.
Step 5, is laid with solar photovoltaic assembly in the middle part of road surface, and the photovoltaic module passes through pre-buried low pressure shielding wire
It is connected with photovoltaic DC-to-AC converter.
Embodiment 2
Asphalt mixture is by 78 parts of modified pitch of mass parts, 51 parts of rubbles, 24 parts of s-B-Ss three
Block copolymer, 20 parts of polylactic acid-succinic acid fourth diester-polylactic acid triblock copolymer, 8 parts of potassium formates and 11 parts it is wooden
Cellulose fiber composition, the polylactic acid-succinic acid fourth diester-polylactic acid triblock copolymer structural formula are.Wherein, the partial size of the rubble in mixing is not more than
3cm, wherein total amount of the partial size less than 0.075mm is no more than the 7% of total amount, is free of sundries in the rubble, the rubble intensity is not
Less than 15MP.For modified pitch by 50 parts of liquefied residues of mass parts, 25 parts of crosslinking agents and 82 parts of matrix pitch compositions, crosslinking agent is benzene
Formaldehyde.
Embodiment 3
Solar photovoltaic assembly surface is covered with photosensitive wearing layer, and the photosensitive wearing layer is by 37 parts of toluidine blues-of mass parts
Carboxymethyl chitosan-carbon nano-tube film, 13 parts of aluminium oxide and 17 parts of polyethylene composition, photosensitive wearing layer with a thickness of 0.2mm.
Embodiment 4
Modified pitch is made by the following method: the liquefied residue of certain mass is weighed, with four after liquefied residue is ground
The extraction of hydrogen furans is made THFS, uses heating shear-mixed method (revolving speed 3 000 after THFS and matrix pitch difference heating melting
R/min) THFS is mixed in the open-top receptacle that volume is 750 mL with matrix pitch according to a certain percentage, it heats and controls body
It is that temperature maintains 190 DEG C, liquefied residue and matrix pitch add crosslinking agent after being uniformly mixed, and are changed after mixing
Property pitch.
Embodiment 5
Polylactic acid-succinic acid fourth diester-polylactic acid triblock copolymer is made by the following method: by 118 g 1,4- fourths
Diacid and 92 g 1,4- butanediols and 2. 1 g Ti (OBu) 4 (catalyst content is the 1% of gross mass) are packed into tri- mouthfuls of 500mL
In flask, 13 kPa are first evacuated to, are re-filled with nitrogen gas, are repeated 3 times;Then 200 DEG C gradually are risen to by room temperature,
20 h. polymerizate of polycondensation is dissolved with chloroform under the vacuum condition of 13 kPa, is precipitated through dehydrated alcohol, and it is solid to obtain white
Body is dried under vacuum to constant weight in 60 DEG C, obtains 145. 1 g of poly-succinic fourth diester solid powder (yield 69. 0%), presses
According to quality than lactic acid: lactic acid is added into system by succinic acid fourth diester=3:1, with Sn (Oct)2For catalyst, it is warming up to 120
DEG C polymerization 24 h, obtain polymerizate and dissolved with chloroform, dehydrated alcohol precipitating, repeat dissolution precipitating 2 times, obtain white
Solid product, it is dry to constant weight in 80 DEG C, target product is made.
Embodiment 6
Toluidine blue-carboxymethyl chitosan-carbon nano-tube film is prepared by the following method: using diameter for 15 ~ 30nm
Carbon nanotube be dissolved in water, after ultrasonic disperse is uniform, uniformly mixed with carboxymethyl chitosan solution, carboxymethyl chitosan
The molar ratio of sugar and carbon nanotube is 1:1.5, and magnetic agitation 12h, it is sugar-modified to obtain carboxymethyl chitosan under 30 DEG C of constant temperatures
Carbon nanotube, by the sugar-modified carbon nanotube of carboxymethyl chitosan be configured to concentration be 57% aqueous solution after, excessive 1- is added
After (3- dimethylamino-propyl) -3- ethyl carbodiimide and n-hydroxysuccinimide are activated for 24 hours, it is 89% that concentration, which is added,
The molar ratio of toluidine blue solution, toluidine blue and carbon nanotube is 0.7:1, stirs for 24 hours, obtains under conditions of 30 DEG C of constant temperature
Solution is poured on film-forming plates by thin-film material, and toluidine blue-carboxymethyl chitosan-carbon nano-tube film is obtained after natural drying.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (9)
1. a kind of asphalt road laying method, other be characterized in that the following steps are included:
Step 1 measures alignment, including conducting wire, middle line, bench mark repetition measurement, section inspection and benefit are surveyed, and are constructed before going into operation
Setting-out releases shoulder, groove, slope foot, gutter banket or borrows Tu Chang, its profile indicated, within the scope of route land used
Trees, weeds or shrub should remove, and dig roadbed；
Step 2, it is filling roadbed using horizontal slice, it is divided into horizontal level according to cross section overall with, successively fills upwards, first
Layer is filled using mixed slag, fill with a thickness of 30cm, the second layer is filled using rubble, fill with a thickness of 20cm, third layer is adopted
Filled with mixed slag, fill with a thickness of 8cm；After completion is filled, TGXG and low voltage screen are laid with perpendicular to embankment axis direction
Electric wire is covered, Bridgehead by Blastig processing section direct route dike axis direction is laid with TGXG；Grid is laid within 48 hours latter, uses water
Mud, mixed slag and rubble mass ratio 3:2:2 spice, are laid with the 4th layer of roadbed, laying with a thickness of 25cm, wherein low pressure shielding electricity
The both ends of line are higher than roadbed；
Step 3 uniformly sprays one layer of atomization pitch in road bed, and covers one layer of 6 needle sunshade net；
Asphalt mixture is laid on road bed by the machine of spreading out and putting on by step 4, and laying depth 8cm leads to during spreading out and putting on
Road roller road pavement is crossed to be rolled, every group road roller first pressing 1 time, press 4 times, be compacted using low frequency and amplitude when first pressing again,
Advance when pressing again and use frequency low-amplitude, be compacted using high frequency high-amplitude when retrogressing, in roller compaction process, carries out nebulizing spray,
The amount of water sprayed is 0.07L/sm；
Step 5, is laid with solar photovoltaic assembly in the middle part of road surface, and the photovoltaic module passes through pre-buried low pressure shielding wire and light
Inverter is lied prostrate to be connected.
2. a kind of asphalt road laying method as described in claim 1, it is characterised in that: in the step 2, the grain of rubble
Diameter is not more than 5cm, and wherein total amount of the partial size less than 0.075mm is no more than the 10% of total amount, and sundries is free of in the rubble, described
Rubble intensity is not less than 15MP；For the water content of the mixed slag less than 5.3%, the intensity of the mixed slag is not less than 15MP, the mixed slag
Partial size is less than 150mm, and wherein total amount of the partial size less than 20mm is no more than the 30% of total amount, and wherein partial size is less than the total amount of 0.075mm
No more than the 10% of total amount.
3. a kind of asphalt road laying method as claimed in claim 2, it is characterised in that: use Buddhist nun between the TGXG
Long Card button is greater than 30cm in blossom type binding connection, the lap of splice of the TGXG, and spacing is not more than 20cm.
4. a kind of asphalt road laying method as described in claims 1 or 2 or 3, it is characterised in that: the asphalt mixture is by matter
Measure 78 parts of modified pitch of part, 51 parts of rubbles, 24 parts of styrene-butadiene-styrene triblock copolymer, 20 parts of polylactic acid-fourths
Diacid fourth diester-polylactic acid triblock copolymer, 8 parts of potassium formates and 11 parts of lignin fibre compositions, the polylactic acid-succinic acid
Fourth diester-polylactic acid triblock copolymer structural formula is。
5. a kind of asphalt road laying method as claimed in claim 4, it is characterised in that: rubble in the asphalt mixture
Partial size is not more than 3cm, and wherein total amount of the partial size less than 0.075mm is no more than the 7% of total amount, and sundries is free of in the rubble, described
Rubble intensity is not less than 15MP.
6. a kind of asphalt road laying method as claimed in claim 5, it is characterised in that: the modified pitch is by mass parts 50
Part liquefied residue, 25 parts of crosslinking agents and 82 parts of matrix pitches compositions.
7. a kind of asphalt road laying method as claimed in claim 6, it is characterised in that: the crosslinking agent is benzaldehyde.
8. a kind of asphalt road laying method as described in claim 1 or 5 or 6, it is characterised in that: the photovoltaic group
Part surface is covered with photosensitive wearing layer, and the photosensitive wearing layer is by 37 parts of toluidine blue-carboxymethyl chitosan-carbon nanotubes of mass parts
Film, 13 parts of aluminium oxide and 17 parts of polyethylene compositions.
9. a kind of asphalt road laying method as claimed in claim 7, it is characterised in that: in the step 4, when first pressing is mixed
Temperature inside material is 155 ~ 170 DEG C, and surface temperature is not less than 100 DEG C when rolling end of a period, and rolling wheel should be protected in the construction process
Cleaning is held, brushes a certain amount of interleaving agent or antitack agent when rolling on rolling wheel, rolling for intersection should be first lower from bend
Start on one side, when abrupt slope is rolled, preferably always towards paver direction, compacting should be carried out continuously the driven wheel of road roller, must not
It pauses.
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