CN106320127A - Recycling asphalt pavement - Google Patents
Recycling asphalt pavement Download PDFInfo
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- CN106320127A CN106320127A CN201610685906.0A CN201610685906A CN106320127A CN 106320127 A CN106320127 A CN 106320127A CN 201610685906 A CN201610685906 A CN 201610685906A CN 106320127 A CN106320127 A CN 106320127A
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- asphalt
- reclaimed
- building stones
- modifying agent
- pavement
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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
- E01C7/187—Repairing bituminous covers, e.g. regeneration of the covering material in situ, application of a new bituminous topping
-
- 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
- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Structural Engineering (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Materials Engineering (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Architecture (AREA)
- Road Paving Structures (AREA)
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Abstract
The invention relates to a recycling asphalt pavement which comprises a cushion layer, a base layer, a sealing layer and a surface layer. The base layer is arranged on the cushion layer. The sealing layer is arranged on the base layer. The surface layer is arranged on the sealing layer. The surface layer is prepared from, by mass, 70-90% of recycling asphalt pavement material, 1-3% of modified asphalt material, 1-3% of first additive and the balance modified aggregated rock, wherein the sum of the mass percentages of all the components is 100%. By means of the recycling asphalt pavement structure and the surface layer material composition technology, the technical problems of recycling and pavement performance of the recycling pavement material are effectively solved, the blending ratio of the recycling pavement material is 60% or above, and the cyclic utilization rate within a certain area reaches 100%.
Description
Technical field
The present invention relates to a kind of road surface, be specifically related to a kind of reclaimed bituminous pavement.
Background technology
Existing reclaimed bituminous pavement structure mainly has following several:
(1) a kind of energy saving and environment friendly road, includes surface layer, is provided with basic unit bottom surface layer.A kind of energy saving and environment friendly road
Surface layer structure: thickness be the asphalt macadam overlying thickness of 7cm be the modified asphalt concrete of 5cm.A kind of energy saving and environment friendly road
The thickness of base course is 20cm, and basic unit uses two-ash broken stones.The basic unit of a kind of energy saving and environment friendly road uses giving up through screening
Old asphalt pavement milling material and rubble.In the basic unit of a kind of energy saving and environment friendly road waste asphalt pavement milling material account for 20～
50%.
(2) a kind of semi-rigid asphalt pavement thick formula revived structure entirely, complete thick formula revived structure wraps the most successively
Include hot in-plant reclaimed upper layer, hot in-plant reclaimed middle surface layer, cold in-plant recycling cutting optimal, recycled cement stabilized macadam base, again
Unboiled water cement-stabilizing broken stone underlayment and regeneration bed course.
(3) a kind of energy-conservation pavement structure, surface layer is layered composite structure, and surface layer includes room temperature Colophonium the most successively
Surface layer and hot in-plant reclaimed asphalt concrete cutting optimal in concrete upper layer, rubber asphalt high-modulus asphalt concrete；Basic unit
For layered composite structure, basic unit includes basic unit and low dosage water on cold in-plant recycling emulsified bitulith the most successively
Cement-stabilizing broken stone is gone to a grassroots level；Hot in-plant reclaimed asphalt concrete cutting optimal is arranged on base on cold in-plant recycling emulsified bitulith
The upper surface of layer；Underlayment is two-ash soil underlayment.
(4) a kind of hot in-plant reclaimed mixture pavement, is arranged in the basic unit of road, including on particulate formula asphalt
Surface layer and middle grain formula hot in-plant reclaimed compound cutting optimal, particulate formula in surface layer, middle grain formula hot in-plant reclaimed asphalt mixture
In asphalt upper layer, middle grain formula asphalt below surface layer and grain formula or middle grain formula hot in-plant reclaimed asphalt mixture
Layer is from top to bottom sequentially arranged in basic unit.
Above-mentioned existing reclaimed bituminous pavement structure there is problems in that
(1) surface layer of reclaimed bituminous pavement structure is straticulate structure, typically by upper layer, middle surface layer and cutting optimal group
Become.Need to arrange adhesion coating between each surface layer, to increase Coating combination, surface thickness scope 15cm～20cm, complex procedures, execute
Duration limit for length.
(2) relatively big owing to reclaiming asphalt pavement material performance variability, so it is low to reclaim asphalt pavement material mixture proportion,
Code requirement bituminous pavement top salvage material mixture proportion is not higher than 30%, so it is low to reclaim asphalt pavement material utilization rate.
Cause recovery asphalt pavement material bulk deposition, do not only take up a large amount of soil, and pollute environment, waste resource.
(3) due to the aging conglomeration of reclaimed asphalt mixture, therefore reclaimed asphalt mixture mixes and stirs temperature height, mixing time
Long, add thermal energy consumption big, batching plant smoke discharge amount increases, and causes environmental pollution, and too high temperature of mixing and stirring easily causes Colophonium
Secondary is aging, reduces the pavement performance of reclaimed asphalt mixture.
(4) due to reasons such as the aging conglomerations of reclaimed asphalt mixture, reclaim asphalt pavement material and newly gather materials, Colophonium mixes and stirs
Uneven, the Asphalt Pavement Damage in early days such as local isolation, loose, rut easily occurs, therefore mixing of specification limit salvage material is joined
Amount.
(5) Recycling Base is due to drying shrinkage and temperature contracting effect, crack easily occurs, and under Driving Loading, basic unit is split
Seam easily extends and reflexes to surface layer, forms bituminous paving early crack disease.
Summary of the invention
It is an object of the invention to provide a kind of reclaimed bituminous pavement, with thinning surface thickness, shorten the construction period, reduce
Bituminous paving early crack and water destruct, improve reclaimed bituminous pavement durability, extends the service life on road surface.
The reclaimed bituminous pavement that the present invention provides includes that bed course, basic unit, sealing and surface layer, described basic unit are arranged on pad
Above Ceng, described sealing is arranged on the top of basic unit, and described surface layer is arranged on the top of sealing；The material of described surface layer is: press
The mass percent of each component and be 100% meter: reclaim asphalt pavement material 70%～90%, modified asphalt material 1%～
3%, the first additive 1%～3%, surplus are modified building stones；Described modified asphalt material includes: by the percent mass of each component
Than and be 100% meter: the first modifying agent 3%～7%, warm-mixing agent 2%～16%, regenerative agent 5%～15%, surplus be oil drip
Green grass or young crops, described first modifying agent is styrene-butadiene latex (SBR), natural rubber breast (NR), polychloroprene latex (CR), NBR latex (ABR), benzene
One in ethylene-butadiene-styrene latex (SBS) and vinyl-vinyl acetate copolymer latex (EVA) and two kinds with
On；Described warm-mixing agent be the one in Tissuemat E, microwax, ethylene-vinyl acetate copolymer waxes (EVA) and stearic acid or
Two or more；Described regenerative agent is furfural extract oil or aromatic naphtha；Described first additive includes: by the percent mass of each component
Than and be 100% meter: reclaimed asphalt mixture modifying agent 20%～40%, surplus are reclaimed asphalt mixture warm-mixing agent, described
Reclaimed asphalt mixture modifying agent is rubber and plastic compound modifying agent MaR, described reclaimed asphalt mixture warm-mixing agent natural zeolite powder
Or synthetic zeolite powder；Described modified building stones are the building stones that surface wraps building stones modifying agent, and described building stones modifying agent is cation
Emulsified asphalt.
The material of sealing of the present invention is: by each component mass percent and be based on 100%: asphalt 40%～
70%, asphalt emulsifier 1%～3%, modifying agent 2%～8%, surplus are water；Described asphalt emulsifier is alkyl phenol polyoxy second
Alkene ether OP series, NPE TX series, alkyl diamine class or quaternary ammonium salts, described alkylphenol polyoxyethylene OP
Series is in alkylphenol polyoxyethylene OP-9, alkylphenol polyoxyethylene OP-10 and alkylphenol polyoxyethylene OP-13
Kind or two or more compositionss, described NPE TX series is NPE TX-7, nonyl phenol
One or more compositions in polyoxyethylene ether TX-10 and NPE TX-15；Described alkyl diamine
Class is one or both the compositions in Adeps Bovis seu Bubali base Pn and hydrogenated-tallow group Pn；Described quaternary ammonium salts is ten
Six alkyl trimethyl ammonium bromides, Cetyltrimethylammonium bromide, octadecyl trimethyl benzyl ammonium chloride and octadecyl three
One or more compositions in methyl-benzyl ammonium bromide；Described second modifying agent is styrene-butadiene latex (SBR), natural rubber
Latex (NR), polychloroprene latex (CR), NBR latex (ABR), s-B-S latex (SBS) and ethylene-acetate
One or more combination in vinyl ester copolymers latex (EVA).
Base material of the present invention is: by each component mass percent and be based on 100%: cement 3%～6%, water 3%～
6%, the second additive 0.2%～0.6%, surplus are salvage material；Described salvage material is for reclaiming bituminous pavement top material
With the compound reclaiming Asphalt Pavement Base material；Described second additive be styrene-butadiene latex (SBR), sbr powder or 30 mesh～
80 mesh junked tire inner tube of a tyre rubber powders.
Course of the present invention is natural soft-clay.
The thickness of surface layer of the present invention is 4cm～8cm, and the thickness of described basic unit is 20cm～30cm, thickness be 15cm～
25cm。
The present invention reclaims asphalt pavement material and is divided into 2 grades or 3 grades according to size, when being divided into 2 grades: granularity be 0mm～
9.5mm and granularity ＞ 9.5mm；When being divided into 3 grades: granularity is 0mm～4.75mm, granularity is 4.75mm～9.5mm, granularity >=
9.5mm。
In modification building stones of the present invention, the quality proportioning of building stones modifying agent and building stones is: by the mass percent of each component be
100% meter: building stones modifying agent 0.2%～1%, surplus are building stones.
Building stones of the present invention: particle diameter be 5mm～in 10mm, 10mm～20mm, 20mm～40mm one or both combination.With
Prior art is compared, and the beneficial effects of the present invention is:
Reclaimed bituminous pavement structure of the present invention and surface material composition technology, efficiently solve recovery ground surface material and make profits
With with pavement performance technical barrier, it is achieved thereby that reclaim ground surface material mixture proportion more than 60%, in certain area circulate
Utilization rate reaches 100%.
Reclaimed bituminous pavement structure surface layer of the present invention is hot in-plant reclaimed asphalt concrete, by using modification technology, temperature
Mix the technology such as technology and salvage material crushing and screening stepping process, make recovery asphalt pavement material mixture proportion reach 70%～
90%, not only breach the requirement of current art specification, and improve the utilization rate reclaiming asphalt pavement material；Surface layer plantmix
Heat regeneration asphalt mixture is by adding warm-mixing agent, and the production temperature 50 C not only reducing reclaimed asphalt mixture is many, saves
Add thermal energy consumption, solve the technical barrier that Colophonium secondary is aging, and decrease the discharge capacity of hazardous solid flue dust, it is achieved that
Dual energy-saving and emission-reduction, environmental protection effect；Surface layer hot in-plant reclaimed asphalt mixture, by adding modifying agent, improves regeneration drip
The comprehensive pavement performance of blue or green compound, adds the mixture proportion reclaiming asphalt pavement material, enhances reclaimed bituminous pavement
Durability, is thinned reclaimed bituminous pavement surface thickness, reduces difficulty of construction, shortens the construction period, significantly extends regeneration
The life-span of bituminous paving.
Modified emulsifying asphalt sealing between surface layer of the present invention and basic unit, by using highly enriched modified emulsifying asphalt and excellent
Matter asphalt emulsifier, adds the fineness of emulsion medium pitch granule, improves emulsion length of penetration in basic unit, reaches envelope
Water, the effect of bonding；Modifying agent in modified emulsifying asphalt can improve the viscosity of emulsion, increases the bonding between surface layer and basic unit
Intensity, makes road surface form continuous print overall, is conducive to improving anti-fatigue performance and the endurance quality on road surface.
Basic unit of the present invention cold in place recycling cement stabilizing structure have employed recovery bituminous pavement top material and base material,
Reclaim bituminous pavement top material and have asphalt material, not only increase flexible composition, form Ban Roubangang basic unit；Basic unit's modifying agent
The pliability of base material can be increased, generation and the extension in base material crack can be prevented, effectively prevent semi-rigid type base
Warm plastic forming and reflection crack, with the addition of new cement material, effectively played the effect of cementing material, make semi-rigid type base shape
Become firm intensity.
Reclaimed bituminous pavement structure of the present invention is the design of typical strong basis sake, and material composition make use of road to greatest extent
The waste and scrap in face, not only increases durability and the service life of regenerated road surface, and directly saves substantial amounts of Colophonium resource
And sand material, construction costs can not only be saved, and there is preferable social benefit.By calculating, often use 1 ton and reclaim road
The expense that face material can be saved is 185.9 yuan, reduces CO2 emissions 855.45g.
Technical scheme not only reduces the production temperature of reclaimed asphalt mixture, decreases the row of noxious fume
High-volume, and improve the performance of reclaimed asphalt mixture, improve the durability of regenerated road surface, extend the use longevity on road surface
Life, is thinned surface thickness, shortens the construction period, it is provided that New Regenerated pavement structure and material composition, for waste and old road surface
Material use and road maintenance maintenance field open a new technology solution route, are conducive to setting up green circulatory low-carbon (LC) and hand over
Logical transportation system, promotes the sustainable development of traffic transport industry.
Accompanying drawing explanation
Fig. 1 is the structural reference schematic diagram on road surface of the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in further details.
Embodiment 1:
With reference to Fig. 1, the reclaimed bituminous pavement structure of this embodiment is from top to bottom followed successively by surface layer 1, sealing 2, basic unit 3 and pad
Layer 4.
The surface layer of this embodiment is the hot in-plant reclaimed asphalt concrete of monolayer layer structure, and thickness is 4cm；Surface material
Composition:
Reclaim asphalt pavement material 70%, modified asphalt material 1%, additive 1%, modified building stones 28%, wherein reclaim
Asphalt pavement material is divided into 2 grades: 0mm～9.5mm and ＞ 9.5mm；
Modified asphalt material composition and proportioning: modifying agent 3%, warm-mixing agent 2%, regenerative agent 5%, asphalt 90%, change
Property agent is styrene-butadiene latex (SBR)；Warm-mixing agent is Tissuemat E；Regenerative agent is furfural extract oil；Asphalt is No. 70 road stones
Oil asphalt.
Additive composition and proportioning: reclaimed asphalt mixture modifying agent 20%, reclaimed asphalt mixture warm-mixing agent 80%.Again
Raw asphalt mixed material modifier: the rubber and plastic compound modifying agent MaR that Shanxi Chagnda Boyuan Highway Maintenance Technology Co., Ltd. produces；
Reclaimed asphalt mixture warm-mixing agent: 60 mesh natural zeolite powders.
The composition of modified building stones and proportioning: building stones modifying agent 0.2%, building stones 99.8%, building stones modifying agent: bitumen content is
The cationic emulsified bitumen material of 30%；Building stones: specification is 5mm～10mm.
The surface layer reclaimed asphalt mixture grating of this embodiment is dense structure of skeleton；Surface layer reclaimed asphalt mixture is empty
Gap rate is 3%.
This embodiment sealing 2, basic unit 3 and bed course 4 use conventional material.
Embodiment 2:
This embodiment difference from Example 1 is:
The sealing of this embodiment is the spraying modified emulsified asphalt of monolayer；The modified emulsifying asphalt material composition of sealing: oil
Colophonium 40%, asphalt emulsifier 1%, modifying agent 2%, water 57%, asphalt be numbered No. 70；Asphalt emulsifier is alkyl
Phenol polyethenoxy ether OP series alkylphenol polyoxyethylene OP-9, modifying agent is styrene-butadiene latex (SBR), the modified emulsifying drip of sealing
Blue or green spread quantity 1.2kg/m2。
The basic unit of this embodiment is the cement stabilizing cold regeneration blends material on the spot of monolayer layer structure, and thickness is 20cm；Base
Layer material forms: cement 3%, water 3%, additive 0.2%, salvage material 93.8%, cement is Portland cement, label
It is 32.5；Additive is styrene-butadiene latex (SBR).Salvage material is for reclaiming bituminous pavement top material and reclaiming Asphalt Pavement Base
The compound of material any quality proportioning.
The bed course of this embodiment is the natural soft-clay of monolayer layer structure, and thickness is 15cm.
Embodiment 3:
As different from Example 1:
The surface thickness of this embodiment is 8cm, and surface material forms: reclaim asphalt pavement material 90%, modified pitch material
Material 3%, additive 3%, modified building stones 4%, wherein reclaim asphalt pavement material be divided into 3 grades: 0mm～4.75mm, 4.75mm～
9.5mm、≥9.5mm。
Modified asphalt material composition and proportioning: modifying agent 7%, warm-mixing agent 16%, regenerative agent 15%, asphalt 62%,
Modifying agent is natural rubber breast (NR), and warm-mixing agent is microwax, and regenerative agent is aromatic naphtha, and asphalt is No. 90 road oil drips
Blue or green.
Additive composition and proportioning: reclaimed asphalt mixture modifying agent 40%, reclaimed asphalt mixture warm-mixing agent 60%, then
Raw asphalt mixed material modifier is the rubber and plastic compound modifying agent that Shanxi Chagnda Boyuan Highway Maintenance Technology Co., Ltd. produces
MaR；Reclaimed asphalt mixture warm-mixing agent is synthetic zeolite powder.
The composition of modified building stones and proportioning: building stones modifying agent 1%, building stones 99%, building stones modifying agent: bitumen content is 50%
Cationic emulsified bitumen material；Building stones: specification is 10mm～20mm.
The surface layer reclaimed asphalt mixture voidage of this embodiment is 6%.
The sealing material composition of this embodiment: asphalt 70%, asphalt emulsifier 3%, modifying agent 8%, water 19%, stone
Oil asphalt be numbered No. 90, asphalt emulsifier is NPE TX series NPE TX-7, changes
Property agent be natural rubber breast (NR), modified emulsifying asphalt spread quantity 2.0kg/m in this embodiment sealing2。
The groundwork thickness of this embodiment is 30cm, and base material forms: cement 6%, water 6%, additive 0.6%, recovery
Material 87.4%, cement is pulverized fuel ash cement；Cement be numbered 42.5；Additive is sbr powder, and salvage material is for reclaiming
Bituminous pavement top material and the compound of recovery Asphalt Pavement Base material any quality proportioning.
The cushion thickness of this embodiment is 25cm.
Embodiment 4:
This embodiment is as different from Example 1:
The surface thickness of this embodiment is 6cm, and material forms: reclaim asphalt pavement material 80%, modified asphalt material
2%, additive 2%, modified building stones 16%, wherein reclaim asphalt pavement material and are divided into 2 grades: 0mm～9.5mm and ＞ 9.5mm.
Modified asphalt material composition and proportioning: modifying agent 5%, warm-mixing agent 9%, regenerative agent 10%, asphalt 76%, change
Property agent is polychloroprene latex (CR), and warm-mixing agent is ethylene-vinyl acetate copolymer waxes (EVA), and regenerative agent is furfural extract oil, stone
Oil asphalt is No. 110 bi tumenf orr oads.
Additive composition and proportioning: reclaimed asphalt mixture modifying agent 30%, reclaimed asphalt mixture warm-mixing agent 70%, then
Raw asphalt mixed material modifier is the rubber and plastic compound modifying agent that Shanxi Chagnda Boyuan Highway Maintenance Technology Co., Ltd. produces
MaR；Reclaimed asphalt mixture warm-mixing agent is 180 mesh natural zeolite powders.
The composition of modified building stones and proportioning: building stones modifying agent 0.6%, building stones 99.4%, building stones modifying agent: bitumen content is
The cationic emulsified bitumen material of 40%；Building stones: specification is 20mm～40mm.
The surface layer voidage of this embodiment is 5%.
The sealing material composition of this embodiment: asphalt 55%, asphalt emulsifier 2%, modifying agent 5%, water 38%, stone
Oil asphalt be numbered No. 110, asphalt emulsifier is alkyl diamine class Adeps Bovis seu Bubali base Pn, and modifying agent is polychloroprene latex
(CR), modified emulsifying asphalt spread quantity 1.6kg/m of this embodiment2。
The groundwork thickness of this embodiment is 25cm；Base material forms: cement 5%, water 4%, additive 0.4%, recovery
Material: 90.6%, cement is slag cements；Cement be numbered 32.5；Additive is 30 mesh junked tire inner tube of a tyre rubber powders, reclaims
Material is to reclaim bituminous pavement top material and reclaim the compound of Asphalt Pavement Base material arbitrary proportion.
This embodiment cushion thickness is 20cm.
Embodiment 5:
This embodiment is as different from Example 1:
The surface thickness of this embodiment is 5cm, and surface material forms: reclaim asphalt pavement material 75%, modified pitch material
Material 1.5%, additive 1.5%, modified building stones 22%, wherein reclaim asphalt pavement material be divided into 3 grades: 0mm～4.75mm,
4.75mm～9.5mm, >=9.5mm.
Modified asphalt material composition and proportioning: modifying agent 4%, warm-mixing agent 5%, regenerative agent 7%, asphalt 84%, change
Property agent is s-B-S latex (SBS) and vinyl-vinyl acetate copolymer latex (EVA), and warm-mixing agent is
Tissuemat E and stearic acid, regenerative agent is aromatic naphtha, and asphalt is No. 110 bi tumenf orr oads.
Additive composition and proportioning: reclaimed asphalt mixture modifying agent 25%, reclaimed asphalt mixture warm-mixing agent 75%, then
Raw asphalt mixed material modifier is the rubber and plastic compound modifying agent that Shanxi Chagnda Boyuan Highway Maintenance Technology Co., Ltd. produces
MaR；Reclaimed asphalt mixture warm-mixing agent: 120 mesh natural zeolite powders.
The composition of modified building stones and proportioning: building stones modifying agent 0.4%, building stones 99.6%, building stones modifying agent: bitumen content is
The cationic emulsified bitumen material of 35%；Building stones: specification is 5mm～10mm and 10mm～20mm combination.
The voidage of this embodiment surface layer is 4%.
This embodiment sealing material forms: asphalt 45%, asphalt emulsifier 1.5%, modifying agent 3.5%, water 50%,
Asphalt be numbered No. 70, asphalt emulsifier is quaternary ammonium salts cetyl trimethylammonium bromide, and modifying agent is butadiene-styrene rubber
Breast (SBR) and natural rubber breast (NR), this embodiment modified emulsifying asphalt spread quantity 1.4kg/m2。
This embodiment groundwork thickness is 22cm, and base material forms: cement 4%, water 5%, additive 0.3%, recovery material
Material 90.7%, cement is slag and flyash compound cement, cement be numbered 32.5, additive is the 50 mesh junked tire inner tubes of a tyre
Rubber powder, salvage material is to reclaim bituminous pavement top material and reclaim the mixing of Asphalt Pavement Base material any quality proportioning
Material.
This embodiment cushion thickness is 18cm.
Embodiment 6:
This embodiment is as different from Example 1:
This embodiment surface thickness is 7cm, and material forms: reclaim asphalt pavement material 85%, modified asphalt material
2.5%, additive 2.5%, modified building stones 10%, wherein reclaim asphalt pavement material be divided into 3 grades: 0mm～4.75mm, 4.75mm
～9.5mm, >=9.5mm.
Modified asphalt material composition and proportioning: modifying agent 6%, warm-mixing agent 13%, regenerative agent 13%, asphalt 68%,
Modifying agent is natural rubber breast (NR) and vinyl-vinyl acetate copolymer latex (EVA), warm-mixing agent be microwax and ethylene-
Vinyl acetate copolymer waxes (EVA), regenerative agent is furfural extract oil, and asphalt is No. 90 bi tumenf orr oads.
Additive composition and proportioning: reclaimed asphalt mixture modifying agent 35%, reclaimed asphalt mixture warm-mixing agent 65%, then
Raw asphalt mixed material modifier is the rubber and plastic compound modifying agent that Shanxi Chagnda Boyuan Highway Maintenance Technology Co., Ltd. produces
MaR；Reclaimed asphalt mixture warm-mixing agent is synthetic zeolite powder.
The composition of modified building stones and proportioning: building stones modifying agent 0.8%, building stones 99.2%, building stones modifying agent: bitumen content is
The cationic emulsified bitumen material of 45%；Building stones: specification is 10mm～20mm and 20mm～40mm combination.
This embodiment surface layer voidage is 5%.
The material composition of this embodiment sealing: asphalt 65%, asphalt emulsifier 2.5%, modifying agent 6.5%, water
26%, asphalt be numbered No. 90, asphalt emulsifier is alkylphenol polyoxyethylene OP series alkylphenol polyoxyethylene
OP-13, modifying agent is s-B-S latex (SBS) and vinyl-vinyl acetate copolymer latex (EVA).
Modified emulsifying asphalt spread quantity 1.8kg/m in this embodiment sealing2。
This embodiment groundwork thickness is 26cm, and base material forms: cement 5%, water 5%, additive 0.5%, recovery material
Material: 89.5%, cement is pulverized fuel ash cement；Cement be numbered 42.5；Additive is styrene-butadiene latex (SBR), and salvage material is
Reclaim bituminous pavement top material and reclaim Asphalt Pavement Base material.
This embodiment cushion thickness is 22cm.
Example 2～5 regenerated road surface structure and material composition, making becomes test section, by People's Republic of China's row
Industry standard " highway engineering Colophonium and Asphalt Mixture Experiment code " JTG E20-2011 and " highway subgrade road surface on-the-spot test rule
Journey " JTG E60-2008 correlation test method, to reclaimed bituminous pavement infiltration coefficient, coefficient of friction pendulum value, rutting depth, crack
Quantity, the modulus of resilience are tested, embodiment 2～5 reclaimed bituminous pavement fieldtesting results such as table 1.
Table 1 embodiment 2～5 reclaimed bituminous pavement fieldtesting results
From table 1, form the Experiment Road of making according to the embodiment of the present invention 2～5 reclaimed bituminous pavement structure and material
Section, property indices is above common regenerated road surface structure.
Claims (8)
1. a reclaimed bituminous pavement, it is characterised in that include that bed course, basic unit, sealing and surface layer, described basic unit are arranged on bed course
Top, described sealing is arranged on the top of basic unit, and described surface layer is arranged on the top of sealing；
The material of described surface layer is:
By each component mass percent and be based on 100%: reclaim asphalt pavement material 70%～90%, modified asphalt material
1%～3%, first additive 1%～3%, surplus be modified building stones；
Described modified asphalt material includes: by each component mass percent and be based on 100%: the first modifying agent 3%～7%,
Warm-mixing agent 2%～16%, regenerative agent 5%～15%, surplus are asphalt,
Described first modifying agent is styrene-butadiene latex, natural rubber breast, polychloroprene latex, NBR latex, styrene-butadiene-benzene second
One in alkene latex and vinyl-vinyl acetate copolymer latex and two or more；
Described warm-mixing agent is one or both in Tissuemat E, microwax, ethylene-vinyl acetate copolymer waxes and stearic acid
Above；
Described regenerative agent is furfural extract oil or aromatic naphtha；
Described first additive includes: by each component mass percent and be based on 100%: reclaimed asphalt mixture modifying agent
20%～40%, surplus is reclaimed asphalt mixture warm-mixing agent, and described reclaimed asphalt mixture modifying agent is that rubber and plastic compound changes
Property agent MaR, described reclaimed asphalt mixture warm-mixing agent natural zeolite powder or synthetic zeolite powder；
Described modified building stones are the building stones that surface wraps building stones modifying agent, and described building stones modifying agent is cationic emulsified bitumen.
2. reclaimed bituminous pavement as claimed in claim 1, it is characterised in that the material of described sealing is: by the matter of each component
Amount percentage ratio and be 100% meter: asphalt 40%～70%, asphalt emulsifier 1%～3%, modifying agent 2%～8%, surplus
For water；-
Described asphalt emulsifier is alkylphenol polyoxyethylene OP series, NPE TX series, alkyl diamine class
Or quaternary ammonium salts,
Described alkylphenol polyoxyethylene OP series be alkylphenol polyoxyethylene OP-9, alkylphenol polyoxyethylene OP-10 and
One or more compositions in alkylphenol polyoxyethylene OP-13,
Described NPE TX series is NPE TX-7, NPE TX-10 and
One or more compositions in NPE TX-15；
Described alkyl diamine class is one or both the compositions in Adeps Bovis seu Bubali base Pn and hydrogenated-tallow group Pn；
Described quaternary ammonium salts is cetyl trimethylammonium bromide, Cetyltrimethylammonium bromide, octadecyl trimethyl benzyl
One or more compositions in ammonium chloride and octadecyl trimethyl Benzylphosphonium Bromide ammonium；
Described second modifying agent is styrene-butadiene latex, natural rubber breast, polychloroprene latex, NBR latex, styrene-butadiene-benzene second
One or more combination in alkene latex and vinyl-vinyl acetate copolymer latex.
3. reclaimed bituminous pavement as claimed in claim 1, it is characterised in that described base material is: by the quality of each component
Percentage ratio and be 100% meter: cement 3%～6%, water 3%～the 6%, second additive 0.2%～0.6%, surplus are for reclaiming material
Material；
Described salvage material is to reclaim bituminous pavement top material and reclaim the compound of Asphalt Pavement Base material；
Described second additive is styrene-butadiene latex, sbr powder or 30 mesh～80 mesh junked tire inner tube of a tyre rubber powders.
4. reclaimed bituminous pavement as claimed in claim 1, it is characterised in that described course is natural soft-clay.
5. reclaimed bituminous pavement as claimed in claim 1, it is characterised in that the thickness of described surface layer is 4cm～8cm, described
The thickness of basic unit is 20cm～30cm, and thickness is 15cm～25cm.
6. reclaimed bituminous pavement as claimed in claim 1, it is characterised in that described recovery asphalt pavement material is big according to particle diameter
Little it is divided into 2 grades or 3 grades, when being divided into 2 grades: granularity is 0mm～9.5mm and granularity ＞ 9.5mm；When being divided into 3 grades: granularity be 0mm～
4.75mm, granularity are 4.75mm～9.5mm, granularity >=9.5mm.
7. reclaimed bituminous pavement as claimed in claim 1, it is characterised in that building stones modifying agent and building stones in described modified building stones
Quality proportioning be: by each component mass percent and be based on 100%: building stones modifying agent 0.2%～1%, surplus are building stones.
8. reclaimed bituminous pavement as claimed in claim 1, it is characterised in that described building stones: particle diameter is 5mm～10mm, 10mm
～one or both combinations in 20mm, 20mm～40mm.
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| CN109704651A (en) * | 2019-01-26 | 2019-05-03 | 上海宝新特种沥青混凝土有限公司 | A kind of asphalt and preparation method thereof |
| CN113430881A (en) * | 2021-01-14 | 2021-09-24 | 绍兴文理学院 | Regenerated roadbed laying method based on solid waste full utilization |
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| CN106320127B (en) | 2018-09-07 |
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