CN104018410A - Thin-layer asphalt concrete structure for inhibiting pavement reflection cracking and paving method - Google Patents
Thin-layer asphalt concrete structure for inhibiting pavement reflection cracking and paving method Download PDFInfo
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- CN104018410A CN104018410A CN201410306929.7A CN201410306929A CN104018410A CN 104018410 A CN104018410 A CN 104018410A CN 201410306929 A CN201410306929 A CN 201410306929A CN 104018410 A CN104018410 A CN 104018410A
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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
- E01C7/26—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders mixed with other materials, e.g. cement, rubber, leather, fibre
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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
- E01C7/26—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders mixed with other materials, e.g. cement, rubber, leather, fibre
- E01C7/262—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders mixed with other materials, e.g. cement, rubber, leather, fibre with fibrous material, e.g. asbestos; with animal or vegetal admixtures, e.g. leather, cork
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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
- E01C7/32—Coherent pavings made in situ made of road-metal and binders of courses of different kind made in situ
-
- 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
- E01C11/00—Details of pavings
- E01C11/005—Methods or materials for repairing pavings
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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
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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
- E01C7/26—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders mixed with other materials, e.g. cement, rubber, leather, fibre
- E01C7/265—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders mixed with other materials, e.g. cement, rubber, leather, fibre with rubber or synthetic resin, e.g. with rubber aggregate, with synthetic resin binder
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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
- 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 invention discloses a thin-layer asphalt concrete structure for inhibiting pavement reflection cracking and a paving method. The structure comprises an old cement concrete pavement, an anti-cracking layer, a rubber modified asphalt fiber gravel sealing layer and a specific grading modified asphalt mixture surface layer from top to bottom, wherein the anti-cracking layer comprises a plurality of anti-cracking patches; the rubber modified asphalt fiber gravel sealing layer is formed by mixing rubber modified asphalt, aggregate and fibers, and covers the anti-cracking layer and the whole pavement; the specific grading modified asphalt mixture surface layer is formed by diluting a high-viscosity asphalt mixed material which is prepared by mixing high-viscosity modified asphalt, aggregate, filler and a fiber stabilizing agent, and covers the rubber modified asphalt fiber gravel sealing layer. The thin-layer asphalt concrete structure can effectively inhibit occurrence and extension of reflection cracking, can prolong the service life of the pavement structure and improve the serving condition of the pavement structure, guarantees that the asphalt paving layer can endure horizontal stress of temperature contraction, disperse vertical stress borne by vehicles and resist buckling deformation of a cement slab under vehicle loading action.
Description
Technical field
The present invention relates to highway construction technical field, relate in particular to a kind of thin-layer bituminous concrete structure and paving method that suppresses reflection cracking in a pavement.
Background technology
At present cement pavement is transformed into flexible pavement and mainly contains two schemes: the one, rubblization, cement concrete pavement is broken into surface and is less than the concrete block that 8 centimetres, bottom are less than 40 centimetres combine closely, inner embedded squeezing, again Paving Bituminous Concrete layer again after firm, the problem in rubblization technology areflexia crack.But rubble operation that the shortcoming of this method has been many, increase cost, and the noise bringing in rubble process has a strong impact on surrounding enviroment, and beneath pipeline also can be destroyed simultaneously.Another kind is direct Paving Bituminous Concrete deck on cement pavement, and this method has been saved rubble operation, simple to operate, can not affect surrounding enviroment, is the more method of current domestic use, but can produce reflection crack problem.How the generation in more effective inhibitory reflex crack, is this scheme urgent need to solve the problem.
Both at home and abroad to suppressing or slow down measure that Reflective Crack in Asphalt Overlays produces still in test and heuristic process, the main method adopting at present has following several, as: increase bitumen layer thickness, rubble crack relief layer is set, geotextiles is set between asphalt overlay and Cement Concrete Pavement Slab, geo-grid, modified bitumen asphaltic felt, gauze wire cloth or modification (rubber) pitch stress absorbing membrane etc.Because actual pavement crack generation reason is numerous, above scheme only can solve crack resistance in a certain respect, and therefore, after engineering application, the effect in inhibitory reflex crack is outstanding, and reflection crack is often than the more Zao appearance of expection.This area is in the urgent need to providing the asphalt concrete structure of the generation of a kind of effectively inhibitory reflex crack and extension.
Summary of the invention
Object of the present invention, proposes generation and the extension in a kind of inhibitory reflex effectively crack exactly, improves thin-layer bituminous concrete structure and the paving method of the application life of road structure and the inhibition reflection cracking in a pavement of duty status.
The present invention is for solving the problems of the technologies described above, a kind of thin-layer bituminous concrete structure that suppresses reflection cracking in a pavement is provided, comprise from bottom to up the cement concrete pavement of haveing been friends in the past, anti-parting, rubber modified asphalt fiber crushed stone sealing and extraordinary grating modified asphalt mixture surface layer, described anti-parting comprises some Anticracking plasters, described Anticracking plaster sticks on the adjacent cement sheeting intersection on described old cement concrete pavement, described rubber modified asphalt fiber crushed stone sealing is by rubber modified asphalt, gather materials and be mixed with fiber, cover on described anti-parting and whole road surface, described extraordinary grating modified asphalt mixture surface layer is by high-viscosity modified asphalt, gather materials, filler and fiber stabilizer are mixed and made into asphaltum with high viscosity compound and make thinner and form, cover on described rubber modified asphalt fiber crushed stone sealing.
Further preferred, the rubber modified asphalt that described rubber modified asphalt fiber crushed stone sealing is used is the composite modified asphalt of admixture rubber powder in petroleum bitumen, SBS (SBS), kieselguhr roasting product and assistant agent; Basalt or diabase gravel that what described rubber modified asphalt fiber crushed stone sealing was used gathers materials for particle size range is 4.75mm～9.5mm; The fiber that described rubber modified asphalt fiber crushed stone sealing is used is glass fiber or polyester fiber, and average length is 10mm-30mm.
Further preferred, described petroleum bitumen is No. 90 A level petroleum bitumen, accounts for 72～80 parts of rubber modified asphalt quality; Described rubber powder is rubber grain after waste tire is pulverized, and grain fineness is 60 order～80 orders, accounts for 17～21 parts of rubber modified asphalt quality; Described SBS is line style SBS, and molecular weight is 70000～200000, accounts for 2～5 parts of rubber modified asphalt quality; The particle diameter of described kieselguhr roasting product is 1000～1250 orders, accounts for 1～4 part of rubber modified asphalt quality; Described assistant agent comprises: plasticizing agent and antioxidant.
Further preferred, described plasticizing agent is physics plasticizing agent, fineness >=180,000 order, and described plasticizing agent accounts for 0～0.5 part of rubber modified asphalt quality; Described antioxidant is hindered phenol anti-oxidants, and fusing point is 110 DEG C～125 DEG C, and fineness >=180,000 order accounts for 0～0.5 part of rubber modified asphalt quality.
Further preferred, the high-viscosity modified asphalt volume that described extraordinary grating modified asphalt mixture surface layer is used is the 5.2%-6.4% of described extraordinary grating modified asphalt mixture surface layer quality; What described extraordinary grating modified asphalt mixture surface layer was used gather materials comprises that coarse aggregate and fine aggregate, described coarse aggregate are basalt or diabase, and described fine aggregate is limestone or basalt or diabase; Described fiber stabilizer is polyester fiber, and average length is 5mm-6mm, and volume is 0.2%～0.4% of described extraordinary grating modified asphalt mixture surface layer quality; Described filler is levigate agstone.
Further preferred, described extraordinary grating modified asphalt mixture surface layer grading limit is as follows:
Further preferred, described high-viscosity modified asphalt is made up of No. 70 pitch and modifier, and described modifier accounts for 6%～11% of high-viscosity modified asphalt oeverall quality; Described modifier is the mixture of SBS, Petropols, aromatic naphtha, the above levigate kieselguhr roasting product of 1000 orders and assistant agent; Described SBS content is 50%～60% of modifier total amount; Described assistant agent comprises: antitack agent, plasticizing agent and antioxidant.
Further preferred, described Anticracking plaster is SBS tack Anticracking plaster, width 40-60cm, thickness 3-4mm.
The present invention also proposes a kind of paving method of the thin-layer bituminous concrete structure that suppresses reflection cracking in a pavement, mats formation according to the following steps:
A, paste Anticracking plaster at the intersection of adjacent cement sheeting;
B, spread rubber modified asphalt, spread quantity is 2kg/m
2～3kg/m
2, synchronous spreading fiber, spreading amount is 90g/m
2～140g/m
2, the hot rubble of spreading, coverage scale 80%～90%, is used rubber-tyred roller to roll 1～2 time;
The asphaltum with high viscosity compound of c, the thin layer that finally paves again forms extraordinary grating modified asphalt mixture surface layer.
Further preferred, before step a, first cement sheeting is carried out to stabilization treatment.
In sum, the present invention suppresses reflection cracking in a pavement thin-layer bituminous concrete structure and paving method have following beneficial effect:
1, first the present invention by firmly processing the cement board on old cement concrete pavement, then first paste Anticracking plaster at the intersection of adjacent cement sheeting, thereby the space between every adjacent cement board is filled firmly, the extraordinary grating modified asphalt mixture surface layer overlaying by rubber modified asphalt fiber crushed stone sealing and on it again forms the thin-layer bituminous concrete structure that suppresses reflection cracking in a pavement, ensure that asphalt overlay can bear the horizontal stress of temperature contracting, disperse the vertical stress of vehicular load, the buckling deformation of opposing cement sheeting under Vehicle Load.
2,, by 2 layers of paving structure of the layer of generally mating formation, be further reduced to the asphalt mixture surfacing of individual layer.Bear the horizontal stress and strengthening interlaminar bonding of temperature contracting by rubber modified asphalt fiber crushed stone sealing, by mating formation of the extraordinary grating modified asphalt mixture of upper layer surface layer, disperse vertical stress, the buckling deformation of opposing cement sheeting under Vehicle Load of vehicular load.This textural association further reduces overlay thickness.
3, textural association of the present invention, with respect to existing correlation technique, has further been strengthened rubber modified asphalt fiber crushed stone sealing and extraordinary grating modified asphalt mixture surface layer, and both strength and toughnesses are had a more substantial increase compared with prior art.
Detailed description of the invention
In specific implementation process, technician can mat formation and suppress the thin-layer bituminous concrete structure of reflection cracking in a pavement according to instruction of the present invention and actual needs, the thin-layer bituminous concrete structure of inhibition reflection cracking in a pavement of the present invention comprises the cement concrete pavement of haveing been friends in the past from bottom to up, anti-parting, rubber modified asphalt fiber crushed stone sealing and extraordinary grating modified asphalt mixture surface layer, described anti-parting comprises some Anticracking plasters, described Anticracking plaster sticks on the adjacent cement sheeting intersection on described old cement concrete pavement, described rubber modified asphalt fiber crushed stone sealing is by rubber modified asphalt, gather materials and be mixed with fiber, cover on described anti-parting and whole road surface, described extraordinary grating modified asphalt mixture surface layer is by high-viscosity modified asphalt, gather materials, filler and fiber stabilizer are mixed and made into asphaltum with high viscosity compound and make thinner and form, cover on described rubber modified asphalt fiber crushed stone sealing.Further design parameter is as follows:
The rubber modified asphalt that described rubber modified asphalt fiber crushed stone sealing is used is the composite modified asphalt of admixture rubber powder in petroleum bitumen, SBS, kieselguhr roasting product and assistant agent; Basalt or diabase gravel that what described rubber modified asphalt fiber crushed stone sealing was used gathers materials for particle size range is 4.75mm～9.5mm; The fiber that described rubber modified asphalt fiber crushed stone sealing is used is glass fiber or polyester fiber, and average length is 10mm-30mm.
Described petroleum bitumen is No. 90 A level petroleum bitumen, accounts for 72～80 parts of rubber modified asphalt quality; Described rubber powder is rubber grain after waste tire is pulverized, and grain fineness is 60 order～80 orders, accounts for 17～21 parts of rubber modified asphalt quality; Described SBS is line style SBS, and molecular weight is 70000～200000, accounts for 2～5 parts of rubber modified asphalt quality; The particle diameter of described kieselguhr roasting product is 1000～1250 orders, accounts for 1～4 part of rubber modified asphalt quality; Described assistant agent comprises: plasticizing agent and antioxidant.
Described plasticizing agent is physics plasticizing agent, fineness >=180,000 order, and main component is zinc stearate, described plasticizing agent accounts for 0～0.5 part of rubber modified asphalt quality; Described antioxidant is hindered phenol anti-oxidants, and fusing point is 110 DEG C～125 DEG C, and fineness >=180,000 order accounts for 0～0.5 part of rubber modified asphalt quality.
Exemplary, the preparation method of described rubber modified asphalt is: rubber powder and SBS should be in No. 90 petroleum bitumen swelling 30min～90min, then add kieselguhr roasting product, shear 30min～60min by colloid mill, finally add assistant agent to stir.Implementation process is as follows: adopt synchronous fiber chip sealer, and spread rubber modified asphalt, spread quantity is 2kg/m
2～3kg/m
2, adopting synchronous distribution vehicle spreading fiber, spread quantity is 90g/m
2～140g/m
2, immediately following using broken stone distributor, the hot rubble of spreading (rubble is through dedusting and 1% pitch premixing, and when spread, temperature should be greater than 100 DEG C), coverage scale 80%～90%, is used rubber-tyred roller to roll 1～2 time after rubble spread.
The high-viscosity modified asphalt volume that described extraordinary grating modified asphalt mixture surface layer is used is the 5.2%-6.4% of described extraordinary grating modified asphalt mixture surface layer quality; What described extraordinary grating modified asphalt mixture surface layer was used gather materials comprises that coarse aggregate and fine aggregate, described coarse aggregate are basalt or diabase, and described fine aggregate is limestone or basalt or diabase; Described fiber stabilizer is polyester fiber, and average length is 5mm-6mm, and volume is 0.2%～0.4% of described extraordinary grating modified asphalt mixture surface layer quality; Described filler is levigate agstone.By the high-viscosity modified asphalt of the component of aforementioned proportion, gather materials, that filler and fiber stabilizer are mixed and made into asphaltum with high viscosity compound is for subsequent use, its void content is 2～4%.When actual use, can utilize pitch sprinkling car to carry out layer paving, the thin layer that paves can form extraordinary grating modified asphalt mixture surface layer.
For avoiding occurring that skid resistance reduces, is prone to the problems such as reflection crack phenomenon, the extraordinary grating modified asphalt mixture surface layer of the present embodiment only uses the asphaltum with high viscosity concrete that nominal maximum particle diameter is 13.2mm (thickness is 35～45mm).
Described extraordinary grating modified asphalt mixture surface layer grading limit is as follows:
Described high-viscosity modified asphalt is made up of No. 70 pitch and modifier, and described modifier accounts for 6%～11% of high-viscosity modified asphalt oeverall quality; Described modifier is the mixture of SBS, Petropols, aromatic naphtha, the above levigate kieselguhr roasting product of 1000 orders and assistant agent; Described SBS content is 50%～60% of modifier total amount; Described assistant agent comprises: antitack agent, plasticizing agent and antioxidant.
The preparation method of described modifier is as follows: the assistant agent of the kieselguhr roasting product of the Petropols of the SBS of 50%～60% percentage by weight (SBS), 12%～41% percentage by weight, 0%～26% percentage by weight, 0～3% percentage by weight is mixed in high-speed mixing equipment, be uniformly mixed with the aromatic naphtha of 8%～37% percentage by weight again, by screw rod extruder extrude, pelletizing, extrusion temperature is controlled at 120～200 DEG C, makes after cooling.
When concrete enforcement, should by above-mentioned modifier with gather materials, fiber stabilizer mixes and stirs more than 15 seconds at 175 DEG C～185 DEG C, then add No. 70 petroleum bitumen and filler, under 175 DEG C～185 DEG C conditions, continue to mix and stir 40 seconds, can form extraordinary grating modified asphalt mixture.Be transported to road scene, use spreading machine to carry out pavement spread, in the time of 155 DEG C～160 DEG C, use steel roller high frequency vibroroller cmpacting 2～3 times (roll back and forth and count 1 time) by a narrow margin, in the time of 80 DEG C～100 DEG C of mixture temperatures, use pneumatic-tired rollers to roll 2 times, finally use the quiet stone roller of steel roller 1～2 time.
Described Anticracking plaster is SBS tack Anticracking plaster, width 40-60cm, and thickness 3-4mm, its performance indications meet the requirement of " highway engineering geosynthetics testing regulation " (JTG E50).In the present embodiment, each raw-material ratio can be omited inching according to the raw-material situation of reality.
The present embodiment suppresses the paving method of the thin-layer bituminous concrete structure of reflection cracking in a pavement, can mat formation according to the following steps:
A, paste Anticracking plaster at the intersection of adjacent cement sheeting;
B, spread rubber modified asphalt, spread quantity is 2kg/m
2～3kg/m
2, synchronous spreading fiber, spreading amount is 90g/m
2～140g/m
2, the hot rubble of spreading, coverage scale 80%～90%, is used rubber-tyred roller to roll 1～2 time;
The asphaltum with high viscosity compound of c, the thin layer that finally paves again forms extraordinary grating modified asphalt mixture surface layer.
Exemplary, before step a, can first carry out stabilization treatment to cement sheeting.
With above-mentioned be only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. one kind is suppressed the thin-layer bituminous concrete structure of reflection cracking in a pavement, it is characterized in that: comprise from bottom to up the cement concrete pavement of haveing been friends in the past, anti-parting, rubber modified asphalt fiber crushed stone sealing and extraordinary grating modified asphalt mixture surface layer, described anti-parting comprises some Anticracking plasters, described Anticracking plaster sticks on the adjacent cement sheeting intersection on described old cement concrete pavement, described rubber modified asphalt fiber crushed stone sealing is by rubber modified asphalt, gather materials and be mixed with fiber, cover on described anti-parting and whole road surface, described extraordinary grating modified asphalt mixture surface layer is by high-viscosity modified asphalt, gather materials, filler and fiber stabilizer are mixed and made into asphaltum with high viscosity compound and make thinner and form, cover on described rubber modified asphalt fiber crushed stone sealing.
2. the thin-layer bituminous concrete structure of inhibition reflection cracking in a pavement as claimed in claim 1, is characterized in that:
The rubber modified asphalt that described rubber modified asphalt fiber crushed stone sealing is used is the composite modified asphalt of admixture rubber powder in petroleum bitumen, SBS, kieselguhr roasting product and assistant agent;
Basalt or diabase gravel that what described rubber modified asphalt fiber crushed stone sealing was used gathers materials for particle size range is 4.75mm～9.5mm;
The fiber that described rubber modified asphalt fiber crushed stone sealing is used is glass fiber or polyester fiber, and average length is 10mm～30mm.
3. the thin-layer bituminous concrete structure of inhibition reflection cracking in a pavement as claimed in claim 2, is characterized in that: described petroleum bitumen is No. 90 A level petroleum bitumen, accounts for 72～80 parts of rubber modified asphalt quality; Described rubber powder is rubber grain after waste tire is pulverized, and grain fineness is 60 order～80 orders, accounts for 17～21 parts of rubber modified asphalt quality;
Described SBS is line style SBS, and molecular weight is 70000～200000, accounts for 2～5 parts of rubber modified asphalt quality; The particle diameter of described kieselguhr roasting product is 1000～1250 orders, accounts for 1～4 part of rubber modified asphalt quality; Described assistant agent comprises: plasticizing agent and antioxidant.
4. the thin-layer bituminous concrete structure of inhibition reflection cracking in a pavement as claimed in claim 3, is characterized in that: described plasticizing agent is physics plasticizing agent, fineness >=180,000 order, and described plasticizing agent accounts for 0～0.5 part of rubber modified asphalt quality;
Described antioxidant is hindered phenol anti-oxidants, and fusing point is 110 DEG C～125 DEG C, and fineness >=180,000 order accounts for 0～0.5 part of rubber modified asphalt quality.
5. the thin-layer bituminous concrete structure of inhibition reflection cracking in a pavement as claimed in claim 1, is characterized in that:
The high-viscosity modified asphalt volume that described extraordinary grating modified asphalt mixture surface layer is used is 5.2%～6.4% of described extraordinary grating modified asphalt mixture surface layer quality;
What described extraordinary grating modified asphalt mixture surface layer was used gather materials comprises that coarse aggregate and fine aggregate, described coarse aggregate are basalt or diabase, and described fine aggregate is limestone or basalt or diabase;
Described fiber stabilizer is polyester fiber, and average length is 5mm～6mm, and volume is 0.2%～0.4% of described extraordinary grating modified asphalt mixture surface layer quality;
Described filler is levigate agstone.
6. the thin-layer bituminous concrete structure of inhibition reflection cracking in a pavement as claimed in claim 5, is characterized in that: described extraordinary grating modified asphalt mixture surface layer grading limit is as follows:
7. the thin-layer bituminous concrete structure of inhibition reflection cracking in a pavement as claimed in claim 6, is characterized in that: described high-viscosity modified asphalt is made up of No. 70 pitch and modifier, and described modifier accounts for 6%～11% of high-viscosity modified asphalt oeverall quality; Described modifier is the mixture of SBS, Petropols, aromatic naphtha, the above levigate kieselguhr roasting product of 1000 orders and assistant agent; Described SBS content is 50%～60% of modifier total amount; Described assistant agent comprises: antitack agent, plasticizing agent and antioxidant.
8. the thin-layer bituminous concrete structure of inhibition reflection cracking in a pavement as claimed in claim 1, is characterized in that: described Anticracking plaster is SBS tack Anticracking plaster, width 40-60cm, thickness 3-4mm.
9. a paving method that suppresses the thin-layer bituminous concrete structure of reflection cracking in a pavement as described in claim 1-8 any one, is characterized in that: mat formation according to the following steps:
A, paste Anticracking plaster at the intersection of adjacent cement sheeting;
B, spread rubber modified asphalt, spread quantity is 2kg/m
2～3kg/m
2, synchronous spreading fiber, spreading amount is 90g/m
2～140g/m
2, the hot rubble of spreading, coverage scale 80%～90%, is used rubber-tyred roller to roll 1～2 time;
The asphaltum with high viscosity compound of c, the thin layer that finally paves again forms extraordinary grating modified asphalt mixture surface layer.
10. paving method according to claim 9, is characterized in that: before step a, first cement sheeting is carried out to stabilization treatment.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610312139.9A CN105926401A (en) | 2014-06-30 | 2014-06-30 | Thin layer asphalt concrete structure for inhibiting pavement reflection cracks and paving method |
| CN201610312330.3A CN105926405B (en) | 2014-06-30 | 2014-06-30 | Inhibit the method for paving of the thin-layer bituminous concrete structure of reflection cracking in a pavement |
| CN201410306929.7A CN104018410B (en) | 2014-06-30 | 2014-06-30 | Suppress thin-layer bituminous xoncrete structure and the method for paving of reflection cracking in a pavement |
| CN201610312363.8A CN105803885A (en) | 2014-06-30 | 2014-06-30 | Rubber modified asphalt fiber chip seal and pavement method thereof |
| CN201610312360.4A CN105926399B (en) | 2014-06-30 | 2014-06-30 | Extraordinary grading modified asphalt mixture face layer and its method for paving |
| PCT/CN2017/071316 WO2017193629A1 (en) | 2014-06-30 | 2017-01-16 | Special grading modified asphalt mixture surface layer and paving method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410306929.7A CN104018410B (en) | 2014-06-30 | 2014-06-30 | Suppress thin-layer bituminous xoncrete structure and the method for paving of reflection cracking in a pavement |
Related Child Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610312360.4A Division CN105926399B (en) | 2014-06-30 | 2014-06-30 | Extraordinary grading modified asphalt mixture face layer and its method for paving |
| CN201610312330.3A Division CN105926405B (en) | 2014-06-30 | 2014-06-30 | Inhibit the method for paving of the thin-layer bituminous concrete structure of reflection cracking in a pavement |
| CN201610312139.9A Division CN105926401A (en) | 2014-06-30 | 2014-06-30 | Thin layer asphalt concrete structure for inhibiting pavement reflection cracks and paving method |
| CN201610312363.8A Division CN105803885A (en) | 2014-06-30 | 2014-06-30 | Rubber modified asphalt fiber chip seal and pavement method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104018410A true CN104018410A (en) | 2014-09-03 |
| CN104018410B CN104018410B (en) | 2016-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610312363.8A Pending CN105803885A (en) | 2014-06-30 | 2014-06-30 | Rubber modified asphalt fiber chip seal and pavement method thereof |
| CN201610312360.4A Active CN105926399B (en) | 2014-06-30 | 2014-06-30 | Extraordinary grading modified asphalt mixture face layer and its method for paving |
| CN201610312139.9A Pending CN105926401A (en) | 2014-06-30 | 2014-06-30 | Thin layer asphalt concrete structure for inhibiting pavement reflection cracks and paving method |
| CN201410306929.7A Active CN104018410B (en) | 2014-06-30 | 2014-06-30 | Suppress thin-layer bituminous xoncrete structure and the method for paving of reflection cracking in a pavement |
| CN201610312330.3A Active CN105926405B (en) | 2014-06-30 | 2014-06-30 | Inhibit the method for paving of the thin-layer bituminous concrete structure of reflection cracking in a pavement |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610312363.8A Pending CN105803885A (en) | 2014-06-30 | 2014-06-30 | Rubber modified asphalt fiber chip seal and pavement method thereof |
| CN201610312360.4A Active CN105926399B (en) | 2014-06-30 | 2014-06-30 | Extraordinary grading modified asphalt mixture face layer and its method for paving |
| CN201610312139.9A Pending CN105926401A (en) | 2014-06-30 | 2014-06-30 | Thin layer asphalt concrete structure for inhibiting pavement reflection cracks and paving method |
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| WO2017193629A1 (en) * | 2014-06-30 | 2017-11-16 | 上海浦东路桥建设股份有限公司 | Special grading modified asphalt mixture surface layer and paving method therefor |
| CN104343077A (en) * | 2014-10-23 | 2015-02-11 | 中国二十冶集团有限公司 | Asphalt concrete pavement reflection crack treatment method |
| CN105696435A (en) * | 2015-04-30 | 2016-06-22 | 蒋新明 | Design method of rigid-flexible composite base course section based on asphalt pavement and application of design method |
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| CN105908589A (en) * | 2016-04-25 | 2016-08-31 | 江苏燕宁新材料科技发展有限公司 | Fiber-broken stone synchronous-sealing pavement maintenance method |
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| CN108298873A (en) * | 2018-03-12 | 2018-07-20 | 漳州厦蓉高速扩建工程有限公司 | A kind of inhibition asphalt pavement reflective cracking material and preparation method thereof |
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| CN112431084A (en) * | 2020-11-11 | 2021-03-02 | 周静 | Asphalt laying process for road construction |
| CN114214887A (en) * | 2021-11-26 | 2022-03-22 | 乌鲁木齐汇聚路面工程有限公司 | Airport runway asphalt pavement structure and construction method thereof |
| CN114180886A (en) * | 2021-12-24 | 2022-03-15 | 上海浦东路桥(集团)有限公司 | Self-adhesive asphalt concrete and preparation method and construction process thereof |
| CN114180886B (en) * | 2021-12-24 | 2023-03-17 | 上海浦东路桥(集团)有限公司 | Self-adhesive asphalt concrete and preparation method and construction process thereof |
| CN114855539A (en) * | 2022-05-27 | 2022-08-05 | 广西北投交通养护科技集团有限公司 | Method for additionally paving asphalt pavement on old cement concrete pavement |
| CN114855539B (en) * | 2022-05-27 | 2023-09-08 | 广西北投交通养护科技集团有限公司 | Method for additionally paving asphalt pavement on old cement concrete pavement |
| CN116396606A (en) * | 2023-05-12 | 2023-07-07 | 江苏路得沥环保材料有限公司 | Asphalt modifier and preparation method thereof |
| CN116396606B (en) * | 2023-05-12 | 2024-02-27 | 江苏路得沥环保材料有限公司 | Asphalt modifier and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105926401A (en) | 2016-09-07 |
| CN105926405B (en) | 2018-06-08 |
| CN105926399B (en) | 2018-06-08 |
| CN105926405A (en) | 2016-09-07 |
| WO2017193629A1 (en) | 2017-11-16 |
| CN104018410B (en) | 2016-06-15 |
| CN105803885A (en) | 2016-07-27 |
| CN105926399A (en) | 2016-09-07 |
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