CN104018410B - Suppress thin-layer bituminous xoncrete structure and the method for paving of reflection cracking in a pavement - Google Patents
Suppress thin-layer bituminous xoncrete structure and the method for paving of reflection cracking in a pavement Download PDFInfo
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- 238000005336 cracking Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000010426 asphalt Substances 0.000 claims abstract description 130
- 239000000835 fiber Substances 0.000 claims abstract description 51
- 239000010410 layer Substances 0.000 claims abstract description 47
- 239000000203 mixture Substances 0.000 claims abstract description 38
- 239000004575 stone Substances 0.000 claims abstract description 26
- 239000002344 surface layer Substances 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 239000004568 cement Substances 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 16
- 239000004567 concrete Substances 0.000 claims abstract description 15
- 239000000945 filler Substances 0.000 claims abstract description 9
- 239000003381 stabilizer Substances 0.000 claims abstract description 9
- 150000001875 compounds Chemical class 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 17
- 239000004014 plasticizer Substances 0.000 claims description 15
- 239000002671 adjuvant Substances 0.000 claims description 14
- 239000011505 plaster Substances 0.000 claims description 13
- 239000003963 antioxidant agent Substances 0.000 claims description 12
- 235000006708 antioxidants Nutrition 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 10
- 230000003078 antioxidant effect Effects 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 7
- 229920000728 polyester Polymers 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 238000003892 spreading Methods 0.000 claims description 5
- 230000007480 spreading Effects 0.000 claims description 5
- 125000003118 aryl group Chemical group 0.000 claims description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 3
- 235000019738 Limestone Nutrition 0.000 claims description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000006028 limestone Substances 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 239000010920 waste tyre Substances 0.000 claims description 3
- 230000002401 inhibitory effect Effects 0.000 abstract description 4
- 230000011514 reflex Effects 0.000 abstract description 4
- 230000008569 process Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- RSWGJHLUYNHPMX-ONCXSQPRSA-N abietic acid Chemical compound C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C(O)=O RSWGJHLUYNHPMX-ONCXSQPRSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 206010003084 Areflexia Diseases 0.000 description 1
- 241001504664 Crossocheilus latius Species 0.000 description 1
- 239000011384 asphalt concrete Substances 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004746 geotextile Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Classifications
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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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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Road Paving Structures (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
A kind of thin-layer bituminous xoncrete structure suppressing reflection cracking in a pavement of disclosure and method for paving, it includes Old cement concrete from bottom to up, Anti-crack layer, rubber modified asphalt fiber crushed stone sealing and extraordinary grating modified asphalt mixture surface layer, described Anti-crack layer includes some Anticracking plasters, described rubber modified asphalt fiber crushed stone sealing is by rubber modified asphalt, gather materials and fiber mixing is made, cover on Anti-crack layer 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. the present invention can the generation in inhibitory reflex crack and extension effectively, improve service life and the duty status of pavement structure, it is ensured that asphalt overlay can undertake the horizontal stress of temperature contracting, the vertical stress of scattering vehicles load, opposing cement sheeting buckling deformation under Vehicle Load.
Description
Technical field
The present invention relates to road engineering technical field, particularly relate to a kind of thin-layer bituminous xoncrete structure suppressing reflection cracking in a pavement and method for paving.
Background technology
Bituminous paving is become mainly to have two schemes concrete pavement rebuilding at present: one is rubblization, cement concrete pavement is broken into surface less than 8 centimetres, bottom combining closely less than 40 centimetres, internal embedded squeezing concrete block, again Paving Bituminous Concrete layer, the problem in crushed stone technology areflexia crack again after firm. But rubble operation that the shortcoming of this method has been many, increases cost, and the noise brought 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 structure sheaf on cement pavement, and this method eliminates rubble operation, simple to operate, without influence on 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 the measure suppressing or slowing down Reflective Crack in Asphalt Overlays to produce still in test and heuristic process, the main method adopted at present has following several, as: increase asphalt thickness, rubble crack relief layer is set, geotextiles is set between asphalt overlay and Cement Concrete Pavement Slab, GSZ, modified pitch asphalt felt, steel wire or modified (rubber) Colophonium stress absorbing membrane etc.Owing to actual pavement crack producing cause is numerous, above scheme is only capable of the crack resistance solved in a certain respect, therefore after engineer applied, it is suppressed that the effect of reflection crack does not highlight, and reflection crack often occurs earlier than expection. This area effectively can produce the asphalt concrete structure with extension in inhibitory reflex crack in the urgent need to providing a kind of.
Summary of the invention
The purpose of the present invention, it is simply that propose a kind of can the generation in inhibitory reflex crack and extension effectively, improve the service life of pavement structure and the thin-layer bituminous xoncrete structure suppressing reflection cracking in a pavement of duty status and method for paving.
The present invention solves above-mentioned technical problem, provide a kind of thin-layer bituminous xoncrete structure suppressing reflection cracking in a pavement, include Old cement concrete from bottom to up, Anti-crack layer, rubber modified asphalt fiber crushed stone sealing and extraordinary grating modified asphalt mixture surface layer, described Anti-crack layer includes some Anticracking plasters, described Anticracking plaster is pasted onto the adjacent boards block intersection on described Old cement concrete, described rubber modified asphalt fiber crushed stone sealing is by rubber modified asphalt, gather materials and fiber mixing is made, cover on described Anti-crack layer 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.
It is further preferred that the rubber modified asphalt of described rubber modified asphalt fiber crushed stone sealing is the composite modified asphalt filling rubber powder, SBS (SBS), kieselguhr roasting product and adjuvant in asphalt; Described rubber modified asphalt fiber crushed stone sealing gather materials for basalt that particle size range is 4.75mm～9.5mm or diabase gravel; The fiber of described rubber modified asphalt fiber crushed stone sealing is glass fibre or polyester fiber, and average length is 10mm-30mm.
It is further preferred that described asphalt is No. 90 A level asphalt, account for rubber modified asphalt quality 72～80 parts; Described rubber powder is rubber grain after waste tire is pulverized, and fineness of the particles is 60 order～80 orders, accounts for rubber modified asphalt quality 17～21 parts; Described SBS is line style SBS, and molecular weight is 70000～200000, accounts for rubber modified asphalt quality 2～5 parts; The particle diameter of described kieselguhr roasting product is 1000～1250 orders, accounts for rubber modified asphalt quality 1～4 part; Described adjuvant includes: plasticizer and antioxidant.
It is further preferred that described plasticizer is physics plasticizer, fineness >=180,000 orders, described plasticizer accounts for rubber modified asphalt quality 0～0.5 part; Described antioxidant is hindered phenol anti-oxidants, and fusing point is 110 DEG C～125 DEG C, and fineness >=180,000 orders account for rubber modified asphalt quality 0～0.5 part.
It is further preferred that the 5.2%-6.4% that the high-viscosity modified asphalt volume of described extraordinary grating modified asphalt mixture surface layer is described extraordinary grating modified asphalt mixture layer quality; Described special type includes coarse aggregate and fine aggregate at gathering materials of grating modified asphalt mixture surface layer, and described coarse aggregate is 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 the 0.2%～0.4% of described extraordinary grating modified asphalt mixture layer quality;Described filler is levigate agstone.
It is further preferred that described extraordinary grating modified asphalt mixture surface layer grading limit is as follows:
It is further preferred that described high-viscosity modified asphalt is made up of No. 70 Colophoniumes and modifying agent, described modifying agent accounts for the 6%～11% of high-viscosity modified asphalt oeverall quality; Described modifying agent is the mixture of the levigate kieselguhr roasting product of more than SBS, Petropols, aromatic naphtha, 1000 orders and adjuvant; Described SBS content is the 50%～60% of modifying agent total amount; Described adjuvant includes: antitack agent, plasticizer and antioxidant.
It is further preferred that described Anticracking plaster is SBS autohension Anticracking plaster, width 40-60cm, thickness 3-4mm.
The present invention also proposes the method for paving of a kind of thin-layer bituminous xoncrete structure suppressing reflection cracking in a pavement, mats formation according to the following steps:
A, adjacent boards block intersection paste Anticracking plaster;
B, spread rubber modified asphalt, spread quantity is 2kg/m2～3kg/m2, synchronizing to dispense fiber, spreading amount is 90g/m2～140g/m2, dispense hot rubble, coverage rate 80%～90%, use rubber-tyred roller to roll 1～2 time;
C, finally pave the again asphaltum with high viscosity compound of thin layer form extraordinary grating modified asphalt mixture surface layer.
It is further preferred that first cement sheeting is carried out stabilization treatment before step a.
In sum, the present invention suppresses the thin-layer bituminous xoncrete structure of reflection cracking in a pavement and method for paving to have the advantages that
1, first the present invention by carrying out firm process to the cement plate on Old cement concrete, then first Anticracking plaster is pasted at the intersection of adjacent boards block, thus being filled with consolidating by the space between every piece of adjacent boards, the thin-layer bituminous xoncrete structure suppressing reflection cracking in a pavement is formed again through the extraordinary grating modified asphalt mixture surface layer overlayed on rubber modified asphalt fiber crushed stone sealing and its, ensure that asphalt overlay can undertake the horizontal stress of temperature contracting, the vertical stress of scattering vehicles load, opposing cement sheeting buckling deformation under Vehicle Load.
2, by 2 layers of paving structure of general pave-load layer, it is further simplified as the asphalt mixture surfacing of monolayer. Horizontal stress and the strengthening interlaminar bonding of temperature contracting is undertaken by rubber modified asphalt fiber crushed stone sealing, by mating formation of upper layer special type grating modified asphalt mixture surface layer, the vertical stress of scattering vehicles load, opposing cement sheeting buckling deformation under Vehicle Load. This structural grouping reduces overlay thickness further.
3, the structural grouping of the present invention is relative to existing correlation technique, further enhances rubber modified asphalt fiber crushed stone sealing and extraordinary grating modified asphalt mixture surface layer, makes both strength and toughness relatively prior aries have a more substantial increase.
Detailed description of the invention
In specific implementation process, technical staff can carry out mating formation according to the teachings of the present invention and actual needs and suppress the thin-layer bituminous xoncrete structure of reflection cracking in a pavement, the thin-layer bituminous xoncrete structure suppressing reflection cracking in a pavement of the present invention includes Old cement concrete from bottom to up, Anti-crack layer, rubber modified asphalt fiber crushed stone sealing and extraordinary grating modified asphalt mixture surface layer, described Anti-crack layer includes some Anticracking plasters, described Anticracking plaster is pasted onto the adjacent boards block intersection on described Old cement concrete, described rubber modified asphalt fiber crushed stone sealing is by rubber modified asphalt, gather materials and fiber mixing is made, cover on described Anti-crack layer 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 of described rubber modified asphalt fiber crushed stone sealing is the composite modified asphalt filling rubber powder, SBS, kieselguhr roasting product and adjuvant in asphalt;Described rubber modified asphalt fiber crushed stone sealing gather materials for basalt that particle size range is 4.75mm～9.5mm or diabase gravel; The fiber of described rubber modified asphalt fiber crushed stone sealing is glass fibre or polyester fiber, and average length is 10mm-30mm.
Described asphalt is No. 90 A level asphalt, accounts for rubber modified asphalt quality 72～80 parts; Described rubber powder is rubber grain after waste tire is pulverized, and fineness of the particles is 60 order～80 orders, accounts for rubber modified asphalt quality 17～21 parts; Described SBS is line style SBS, and molecular weight is 70000～200000, accounts for rubber modified asphalt quality 2～5 parts; The particle diameter of described kieselguhr roasting product is 1000～1250 orders, accounts for rubber modified asphalt quality 1～4 part; Described adjuvant includes: plasticizer and antioxidant.
Described plasticizer is physics plasticizer, fineness >=180,000 orders, is mainly composed of zinc stearate, and described plasticizer accounts for rubber modified asphalt quality 0～0.5 part; Described antioxidant is hindered phenol anti-oxidants, and fusing point is 110 DEG C～125 DEG C, and fineness >=180,000 orders account for rubber modified asphalt quality 0～0.5 part.
Exemplary, the preparation method of described rubber modified asphalt is: rubber powder and SBS should in No. 90 asphalt swelling 30min～90min, it is subsequently adding kieselguhr roasting product, shear 30min～60min by colloid mill, be eventually adding adjuvant and stir. Implementation process is as follows: adopting and synchronize fiber chip sealer, spread rubber modified asphalt, spread quantity is 2kg/m2～3kg/m2, adopting and synchronize distribution vehicle spreading fiber, spread quantity is 90g/m2～140g/m2, immediately following using broken stone distributor, dispense hot rubble (through dedusting and 1% Colophonium premixing, during spread, temperature should be greater than 100 DEG C to rubble), coverage rate 80%～90%, after rubble spread, use rubber-tyred roller to roll 1～2 time.
The high-viscosity modified asphalt volume of described extraordinary grating modified asphalt mixture surface layer is the 5.2%-6.4% of described extraordinary grating modified asphalt mixture layer quality; Described special type includes coarse aggregate and fine aggregate at gathering materials of grating modified asphalt mixture surface layer, and described coarse aggregate is 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 the 0.2%～0.4% of described extraordinary grating modified asphalt mixture 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 standby, its voidage is 2～4%. Time actually used, available pitch sprinkling car carries out layer paving, and the thin layer that paves can form extraordinary grating modified asphalt mixture surface layer.
For avoiding the occurrence of skid resistance and reduce, easily the problems such as reflection crack phenomenon, the asphaltum with high viscosity concrete (thickness is 35～45mm) that the extraordinary grating modified asphalt mixture surface layer of the present embodiment only uses nominal maximum particle diameter to be 13.2mm occurring.
Described extraordinary grating modified asphalt mixture surface layer grading limit is as follows:
Described high-viscosity modified asphalt is made up of No. 70 Colophoniumes and modifying agent, and described modifying agent accounts for the 6%～11% of high-viscosity modified asphalt oeverall quality; Described modifying agent is the mixture of the levigate kieselguhr roasting product of more than SBS, Petropols, aromatic naphtha, 1000 orders and adjuvant;Described SBS content is the 50%～60% of modifying agent total amount; Described adjuvant includes: antitack agent, plasticizer and antioxidant.
The preparation method of described modifying agent is as follows: by the SBS (SBS) of 50%～60% percentage by weight, the Petropols of 12%～41% percentage by weight, the kieselguhr roasting product of 0%～26% percentage by weight, 0～3% percentage by weight adjuvant mix homogeneously in high-speed mixing equipment, it is stirred mixing with the aromatic naphtha of 8%～37% percentage by weight again, by screw extruder extrusion, pelletizing, extrusion temperature controls, at 120～200 DEG C, namely to prepare after cooling.
When being embodied as, should by above-mentioned modifying agent with gather materials, fiber stabilizer mixes and stirs more than 15 seconds at 175 DEG C～185 DEG C, it is subsequently adding No. 70 asphalt and filler, continues to mix and stir 40 seconds under 175 DEG C～185 DEG C conditions, extraordinary grating modified asphalt mixture can be formed. Transport to road on-the-spot, spreading machine is used to carry out pavement spread, steel roller frequency low-amplitude vibroroller cmpacting 2～3 times (roll back and forth and be calculated as 1 time) is used when 155 DEG C～160 DEG C, use when mixture temperature 80 DEG C～100 DEG C pneumatic-tired rollers to roll 2 times, finally use the quiet stone roller of steel roller 1～2 time.
Described Anticracking plaster is SBS autohension Anticracking plaster, width 40-60cm, thickness 3-4mm, and its performance indications meet the requirement of " highway engineering geosynthetics testing regulations " (JTGE50). In the present embodiment, each raw-material ratio slightly can adjust according to actual raw-material situation.
The present embodiment suppresses the method for paving of the thin-layer bituminous xoncrete structure of reflection cracking in a pavement, can mat formation according to the following steps:
A, adjacent boards block intersection paste Anticracking plaster;
B, spread rubber modified asphalt, spread quantity is 2kg/m2～3kg/m2, synchronizing to dispense fiber, spreading amount is 90g/m2～140g/m2, dispense hot rubble, coverage rate 80%～90%, use rubber-tyred roller to roll 1～2 time;
C, finally pave the again asphaltum with high viscosity compound of thin layer form extraordinary grating modified asphalt mixture surface layer.
Exemplary, first cement sheeting can be carried out stabilization treatment before step a.
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 making some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (9)
1. the thin-layer bituminous xoncrete structure suppressing reflection cracking in a pavement, it is characterized in that: include Old cement concrete from bottom to up, Anti-crack layer, rubber modified asphalt fiber crushed stone sealing and extraordinary grating modified asphalt mixture surface layer, described Anti-crack layer includes some Anticracking plasters, described Anticracking plaster is pasted onto the adjacent boards block intersection on described Old cement concrete, described rubber modified asphalt fiber crushed stone sealing is by rubber modified asphalt, gather materials and fiber mixing is made, cover on described Anti-crack layer 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,
The rubber modified asphalt of described rubber modified asphalt fiber crushed stone sealing is the composite modified asphalt filling rubber powder, SBS, kieselguhr roasting product and adjuvant in asphalt;
Described rubber modified asphalt fiber crushed stone sealing gather materials for basalt that particle size range is 4.75mm～9.5mm or diabase gravel;
The fiber of described rubber modified asphalt fiber crushed stone sealing is glass fibre or polyester fiber, and average length is 10mm～30mm.
2. the thin-layer bituminous xoncrete structure suppressing reflection cracking in a pavement as claimed in claim 1, it is characterised in that: described asphalt is No. 90 A level asphalt, accounts for rubber modified asphalt quality 72～80 parts; Described rubber powder is rubber grain after waste tire is pulverized, and fineness of the particles is 60 order～80 orders, accounts for rubber modified asphalt quality 17～21 parts;
Described SBS is line style SBS, and molecular weight is 70000～200000, accounts for rubber modified asphalt quality 2～5 parts; The particle diameter of described kieselguhr roasting product is 1000～1250 orders, accounts for rubber modified asphalt quality 1～4 part; Described adjuvant includes: plasticizer and antioxidant.
3. the thin-layer bituminous xoncrete structure suppressing reflection cracking in a pavement as claimed in claim 2, it is characterised in that: described plasticizer is physics plasticizer, fineness >=180,000 orders, and described plasticizer accounts for rubber modified asphalt quality 0～0.5 part;
Described antioxidant is hindered phenol anti-oxidants, and fusing point is 110 DEG C～125 DEG C, and fineness >=180,000 orders account for rubber modified asphalt quality 0～0.5 part.
4. the thin-layer bituminous xoncrete structure suppressing reflection cracking in a pavement as claimed in claim 1, it is characterised in that:
The high-viscosity modified asphalt volume of described extraordinary grating modified asphalt mixture surface layer is the 5.2%～6.4% of described extraordinary grating modified asphalt mixture layer quality;
Described special type includes coarse aggregate and fine aggregate at gathering materials of grating modified asphalt mixture surface layer, and described coarse aggregate is 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 the 0.2%～0.4% of described extraordinary grating modified asphalt mixture layer quality;
Described filler is levigate agstone.
5. the thin-layer bituminous xoncrete structure suppressing reflection cracking in a pavement as claimed in claim 4, it is characterised in that: described extraordinary grating modified asphalt mixture surface layer grading limit is as follows:
。
6. the thin-layer bituminous xoncrete structure suppressing reflection cracking in a pavement as claimed in claim 5, it is characterised in that: described high-viscosity modified asphalt is made up of No. 70 Colophoniumes and modifying agent, and described modifying agent accounts for the 6%～11% of high-viscosity modified asphalt oeverall quality; Described modifying agent is the mixture of the levigate kieselguhr roasting product of more than SBS, Petropols, aromatic naphtha, 1000 orders and adjuvant; Described SBS content is the 50%～60% of modifying agent total amount; Described adjuvant includes: antitack agent, plasticizer and antioxidant.
7. the thin-layer bituminous xoncrete structure suppressing reflection cracking in a pavement as claimed in claim 1, it is characterised in that: described Anticracking plaster is SBS autohension Anticracking plaster, width 40-60cm, thickness 3-4mm.
8. the method for paving of the thin-layer bituminous xoncrete structure suppressing reflection cracking in a pavement as described in any one of claim 1-7, it is characterised in that: mat formation according to the following steps:
A, adjacent boards block intersection paste Anticracking plaster;
B, spread rubber modified asphalt, spread quantity is 2kg/m2～3kg/m2, synchronizing to dispense fiber, spreading amount is 90g/m2～140g/m2, dispense hot rubble, coverage rate 80%～90%, use rubber-tyred roller to roll 1～2 time;
C, finally pave the again asphaltum with high viscosity compound of thin layer form extraordinary grating modified asphalt mixture surface layer.
9. method for paving according to claim 8, it is characterised in that: before step a, first cement sheeting is carried out stabilization treatment.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
| CN201610312360.4A CN105926399B (en) | 2014-06-30 | 2014-06-30 | Extraordinary grading modified asphalt mixture face layer and its method for paving |
| CN201610312363.8A CN105803885A (en) | 2014-06-30 | 2014-06-30 | Rubber modified asphalt fiber chip seal and pavement method thereof |
| CN201610312139.9A CN105926401A (en) | 2014-06-30 | 2014-06-30 | Thin layer asphalt concrete structure for inhibiting pavement reflection cracks and paving method |
| 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 |
|---|---|---|---|
| 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 |
| CN201610312360.4A Division CN105926399B (en) | 2014-06-30 | 2014-06-30 | Extraordinary grading modified asphalt mixture face layer and its method for paving |
| CN201610312363.8A Division CN105803885A (en) | 2014-06-30 | 2014-06-30 | Rubber modified asphalt fiber chip seal and pavement method thereof |
| CN201610312139.9A Division CN105926401A (en) | 2014-06-30 | 2014-06-30 | Thin layer asphalt concrete structure for inhibiting pavement reflection cracks and paving method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104018410A CN104018410A (en) | 2014-09-03 |
| CN104018410B true CN104018410B (en) | 2016-06-15 |
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Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 |
| CN201610312139.9A Pending CN105926401A (en) | 2014-06-30 | 2014-06-30 | Thin layer asphalt concrete structure for inhibiting pavement reflection cracks and paving method |
| CN201610312363.8A Pending CN105803885A (en) | 2014-06-30 | 2014-06-30 | Rubber modified asphalt fiber chip seal and pavement method thereof |
| 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 |
| CN201610312360.4A Active CN105926399B (en) | 2014-06-30 | 2014-06-30 | Extraordinary grading modified asphalt mixture face layer and its method for paving |
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| CN201610312363.8A Pending CN105803885A (en) | 2014-06-30 | 2014-06-30 | Rubber modified asphalt fiber chip seal and pavement method thereof |
| 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 |
| CN201610312360.4A Active CN105926399B (en) | 2014-06-30 | 2014-06-30 | Extraordinary grading modified asphalt mixture face layer and its method for paving |
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| WO2017193629A1 (en) | 2017-11-16 |
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| CN105803885A (en) | 2016-07-27 |
| CN105926399A (en) | 2016-09-07 |
| CN105926405B (en) | 2018-06-08 |
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| CN104018410A (en) | 2014-09-03 |
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