CN108411752A - The restorative procedure of asphalt pavement pit - Google Patents
The restorative procedure of asphalt pavement pit Download PDFInfo
- Publication number
- CN108411752A CN108411752A CN201810133036.5A CN201810133036A CN108411752A CN 108411752 A CN108411752 A CN 108411752A CN 201810133036 A CN201810133036 A CN 201810133036A CN 108411752 A CN108411752 A CN 108411752A
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- parts
- restorative procedure
- compound layer
- asphalt pavement
- asphalt
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Classifications
-
- 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
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/09—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges
- E01C23/096—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming, opening-out, cleaning, drying or heating and filling
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—Bituminous materials, e.g. tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
Abstract
The present invention provides a kind of restorative procedure of asphalt pavement pit, includes the following steps：1）Clear up pit slot；2）Cutting pit slot side wall forms an inclined-plane and clears up cutting clout, is rinsed with water, to be dried, which slopes inwardly from the top of bituminous paving；3）A layer sizing is coated on inclined-plane, the thickness of compound layer is 10~15mm, wait for that compound layer cures, sizing material includes 3~4 parts of matrix pitch in parts by weight, 10~12 parts of fine sand, 8~10 parts of ceramic powder, 5 parts of aluminium powder, 23~25 parts of aqueous epoxy resins, 7 parts of mineral clay, 3 parts of diluent, 8 parts of grading building stones, 5~7 parts of acrylic emulsion；4）Asphalt cold repairing is inserted, is compacted.This programme is reinforced and is adjusted the flatness of cut surface to one layer sizing of roadway applications after cutting, while connecting pitch old pavement and new oil dressing by compound layer, and the bonding strength of new-old pavement is promoted by the transition of compound layer；The service life of bituminous paving after repairing is promoted through the above scheme.
Description
Technical field
The present invention relates to road rehabilitations, the more particularly to restorative procedure of asphalt pavement pit.
Background technology
Bituminous paving refers to various types of road surfaces that bitumen for road use material making is mixed in mineral material.Pitch combines
Material, which improves to pave the way, resists the ability of driving and the damage of natural cause road pavement with pellet, and evenness of road surface is made to lack dirt, waterproof, warp
It is durable long.Therefore, bituminous paving is a kind of high class pavement being the most widely used in road construction.
Road surface pit slot is generated due to road surface aggregate local shedding, and the principal element for generating asphalt pavement pit includes
Water Damage, road surface aging.
Existing repair mode general process is as follows：The first step, the road surface cracked to pit slot periphery are cut；The
Two steps clear up the rubble etc. in pit slot；Third walks, and fills into virgin material and is compacted.Combination of this mode due to the old and new road surface
Degree is not high, easy tos produce crack, service life is not high.
Invention content
The object of the present invention is to provide a kind of restorative procedures of asphalt pavement pit, promote the bond strength on the old and new road surface,
Prolong the service life.
The present invention above-mentioned technical purpose technical scheme is that：A kind of asphalt pavement pit is repaiied
Compound method, includes the following steps：
1) pit slot is cleared up；
2) cutting pit slot side wall, which is formed, an inclined-plane and clears up cutting clout, is rinsed with water, to be dried, and the inclined-plane is from bituminous paving top
Portion slopes inwardly；
3) layer sizing is coated on inclined-plane, the thickness of compound layer is 10~15mm, waits for that compound layer cures, sizing material is in parts by weight
Including 3~4 parts of matrix pitch, 10~12 parts of fine sand, 8~10 parts of ceramic powder, 5 parts of aluminium powder, 23~25 parts of aqueous epoxy resins, mine
7 parts of matter clay, 3 parts of diluent, 8 parts of grading building stones, 5~7 parts of acrylic emulsion；
4) asphalt cold repairing is inserted, is compacted.
Pavement roughness after cutting exists simultaneously certain crackle etc., and this programme is to one layer of roadway applications after cutting
The flatness of cut surface is reinforced and adjusted to sizing material, while connecting pitch old pavement and new oil dressing by compound layer, is passed through
The transition of compound layer promotes the bonding strength of new-old pavement, and the setting on inclined-plane increases connection area, and it is strong further to promote connection
Degree；The service life of bituminous paving after repairing is promoted through the above scheme.Wherein aqueous epoxy resins are as major ingredient, fine sand, pottery
Porcelain powder diameter small flow can increase connectivity into the gap in road surface after cutting well.Aluminium powder is for promoting intensity, acrylic acid
Lotion is for enhancing viscosity.
Further, first compound layer is preheated after 3), preheating temperature is 40~46 DEG C.
After being preheated to compound layer, the molecular motion velocities of asphalt mixture can be accelerated, repairing efficiency is promoted, subtract simultaneously
Rejection caused by the few and temperature difference of asphalt mixture.
Further, compacting includes first pressing：Vibrator carries out vibration-extrusion, is rolled 2~3 times by road roller again later,
Pavement temperature is maintained at 55~60 DEG C；Multiple pressure：It is rolled 6 times or more by road roller, pavement temperature is maintained at 47~52 DEG C；Eventually
Pressure：It is rolled 2~3 times by road roller, pavement temperature is kept for 40 DEG C or more.
By the way of cold-patch (being repaired at a lower temperature), technique is simpler, and season oneself to cold weather operation, improves
Accommodation.
Further, mineral clay is calcium bentonite.
Mineral clay has preferable compatibility with pitch, can uniformly be dispersed in pitch, enhances pitch intensity.
Further, diluent is by mass ratio 1:1 heavy oil and diesel oil composition.
The low temperature workability of asphalt cold repairing mixture depends primarily on the type of diluent, and heavy oil molecules amount is big, cold-patch drip
The interior frictional resistance and cohesion value of green mixture are larger, therefore heavy oil cannot reduce the viscosity of pitch well, with heavy oil
Low temperature workability grade for the cold repairing asphalt mixture of diluent is low, and the average molecular weight of vegetable oil is minimum, and vegetable oil is added
Certain lubricating action can be played, but the initial stage viscosity of pitch can be reduced, makes the interior frictional resistance of cold repairing asphalt mixture
Reduce with cohesion value.Therefore, this programme selects diesel oil-heavy oil according to special ratios as diluent.
Further, the grading building stones are made of the basalt that grain size is 0.2-9.5mm, and building stones pass through 12mm diameters
It is 100% when sieve pore, by being 96.8% when 9.5mm diameter sieve pores, by being 78.4% when 6.3mm diameter sieve pores, passes through
It is 45.7% when 2.4mm diameter sieve pores, by being 19.3% when 0.9mm diameter sieve pores, by being when 0.2mm diameter sieve pores
9.8%.
The pairs of intensity of group of grading building stones will produce certain influence, and this programme uses the grading building stones of aforementioned proportion.
Further, the preparation method of sizing material is as follows：1) matrix pitch is heated to 130 DEG C；
2) aqueous epoxy resins heating is allowed to be in molten condition, fine sand, ceramic powder, aluminium powder is added and is stirred 1h, is stirring
Retentivity epoxy resin is in molten condition during mixing；
3) mixture after stirring is poured into the matrix pitch in 1) step, adds acrylic emulsion, antifoaming agent stirring, stirring
When keep 115 DEG C of temperature or more, it is cooling.
In conclusion the invention has the advantages that：This programme promotes new-old pavement by the transition of compound layer
Bonding strength.
Description of the drawings
Fig. 1 is the structural schematic diagram of the pit slot in embodiment 1.
Reference numeral：1, bituminous paving；2, pit slot；3, inclined-plane；4, compound layer.
Specific implementation mode
Below in conjunction with attached drawing, invention is further described in detail.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, people in the art
Member can as needed make the present embodiment the modification of not creative contribution after reading this specification, but as long as at this
It is all protected by Patent Law in the right of invention.
Embodiment 1：Referring to Fig.1, a kind of restorative procedure of asphalt pavement pit, includes the following steps：1) pit slot 2 is cleared up；
2) cutting 2 side wall of pit slot, which is formed, an inclined-plane 3 and clears up cutting clout, is rinsed with water, to be dried, and the inclined-plane 3 is from asphalt road
1 top of face slopes inwardly；
3) layer sizing is coated on inclined-plane 3, the thickness of compound layer 4 is 12mm, waits for that compound layer 4 cures, sizing material is in parts by weight
Including 4 parts of matrix pitch, 12 parts of fine sand, 9 parts of ceramic powder, 5 parts of aluminium powder, 24 parts of aqueous epoxy resins, 7 parts of mineral clay, dilution
3 parts of agent, 8 parts of grading building stones, 7 parts of acrylic emulsion.Matrix pitch is that the 70# that Jiangshu Baoli Pitch Co., Ltd. provides is general
Logical pitch.
4) asphalt cold repairing is inserted, is compacted.Asphalt cold repairing is produced by Tai'an Zheng Bo earth working materials Co., Ltd
70#, 50 DEG C, ductility 150cm, needle penetration 70-90mm of softening point.Compacting includes first pressing：Vibrator carries out vibration-extrusion, Zhi Houzai
It is rolled 3 times by road roller, pavement temperature is maintained at 58 DEG C；
Multiple pressure：It is rolled 6 times or more by road roller, pavement temperature is maintained at 48 DEG C；
Final pressure：It is rolled 2 times by road roller, pavement temperature is kept for 40 DEG C or more.
Grading building stones are made of the basalt that grain size is 0.2-9.5mm, and building stones by being when 12mm diameter sieve pores
100%, by being 96.8% when 9.5mm diameter sieve pores, by being 78.4% when 6.3mm diameter sieve pores, sieved by 2.4mm diameters
Kong Shiwei 45.7%, by being 19.3% when 0.9mm diameter sieve pores, by being 9.8% when 0.2mm diameter sieve pores.
Diluent is by mass ratio 1:1 heavy oil and diesel oil composition, mineral clay are calcium bentonite.
The preparation method of sizing material is as follows：1) matrix pitch is heated to 130 DEG C；
2) aqueous epoxy resins heating is allowed to be in molten condition, fine sand, ceramic powder, aluminium powder is added and is stirred 1h, is stirring
Retentivity epoxy resin is in molten condition during mixing；
3) mixture after stirring is poured into the matrix pitch in 1) step, adds acrylic emulsion, antifoaming agent stirring, stirring
When keep 115 DEG C of temperature or more, it is cooling.
Embodiment 2：A kind of restorative procedure of asphalt pavement pit, unlike embodiment 1：The thickness of compound layer 4 is
15mm, sizing material include 4 parts of matrix pitch, 10 parts of fine sand, 8 parts of ceramic powder, 5 parts of aluminium powder, aqueous epoxy resins 23 in parts by weight
Part, 7 parts of mineral clay, 3 parts of diluent, 8 parts of grading building stones, 5 parts of acrylic emulsion.
Embodiment 3：A kind of restorative procedure of asphalt pavement pit, unlike embodiment 1：The thickness of compound layer 4 is
10mm, sizing material include 3 parts of matrix pitch, 11 parts of fine sand, 10 parts of ceramic powder, 5 parts of aluminium powder, aqueous epoxy resins 25 in parts by weight
Part, 7 parts of mineral clay, 3 parts of diluent, 8 parts of grading building stones, 6 parts of acrylic emulsion.
Embodiment 4：A kind of restorative procedure of asphalt pavement pit, unlike embodiment 1：First to compound layer 4 after 3)
It is preheated, preheating temperature is 42 DEG C.
Embodiment 5：A kind of restorative procedure of asphalt pavement pit, unlike embodiment 1：First to compound layer 4 after 3)
It is preheated, preheating temperature is 46 DEG C.
Embodiment 6：A kind of restorative procedure of asphalt pavement pit, unlike embodiment 1：First to compound layer 4 after 3)
It is preheated, preheating temperature is 40 DEG C.
Comparative example：A kind of restorative procedure of asphalt pavement pit, difference lies in omit 2) with embodiment 1.
Carry out the asphalt roads construction of height 50cm, to be onstructed finish can manually be opened after normal pass on asphalt roads
Dig diameter length 100, the pit slot 27 of width 50cm, depth 10cm.
Pressure test, the wheel footpath 75cm of road roller are carried out using embodiment 1-6 and comparative example, pressure is 5 tons and carries out back and forth
It rolls, measures the settling amount of pit slot 2.
Claims (7)
1. a kind of restorative procedure of asphalt pavement pit, which is characterized in that include the following steps：
1）Clear up pit slot；
2）Cutting pit slot side wall forms an inclined-plane and simultaneously clears up cutting clout, is rinsed with water, to be dried, and the inclined-plane is from bituminous paving top
Portion slopes inwardly；
3）A layer sizing is coated on inclined-plane, the thickness of compound layer is 10~15mm, waits for that compound layer cures, sizing material is in parts by weight
Including 3~4 parts of matrix pitch, 10~12 parts of fine sand, 8~10 parts of ceramic powder, 5 parts of aluminium powder, 23~25 parts of aqueous epoxy resins, mine
7 parts of matter clay, 3 parts of diluent, 8 parts of grading building stones, 5~7 parts of acrylic emulsion；
4）Asphalt cold repairing is inserted, is compacted.
2. the restorative procedure of asphalt pavement pit according to claim 1, it is characterized in that：3）First compound layer is carried out afterwards
Preheating, preheating temperature are 40~46 DEG C.
3. the restorative procedure of asphalt pavement pit according to claim 1, it is characterized in that：Compacting includes first pressing：Vibrator
Vibration-extrusion is carried out, is rolled 2~3 times by road roller again later, pavement temperature is maintained at 55~60 DEG C；
Multiple pressure：It is rolled 6 times or more by road roller, pavement temperature is maintained at 47~52 DEG C；
Final pressure：It is rolled 2~3 times by road roller, pavement temperature is kept for 40 DEG C or more.
4. the restorative procedure of asphalt pavement pit according to claim 1, it is characterized in that：Mineral clay is calcium bentonite.
5. the restorative procedure of asphalt pavement pit according to claim 1, it is characterized in that：Diluent is by mass ratio 1:1
Heavy oil and diesel oil composition.
6. the restorative procedure of asphalt pavement pit according to claim 1, it is characterized in that：The grading building stones are by grain size
The basalt of 0.2-9.5mm forms, and grading building stones are by being 100% when 12mm diameter sieve pores, when by 9.5mm diameter sieve pores
It is 96.8%, by being 78.4% when 6.3mm diameter sieve pores, by being 45.7% when 2.4mm diameter sieve pores, is sieved by 0.9mm diameters
Kong Shiwei 19.3%, by being 9.8% when 0.2mm diameter sieve pores.
7. the restorative procedure of asphalt pavement pit according to claim 1, it is characterized in that：The preparation method of sizing material is as follows：
1）Matrix pitch is heated to 130 DEG C；
2）Aqueous epoxy resins heating is allowed to be in molten condition, fine sand, ceramic powder, aluminium powder is added and is stirred 1h, is stirring
Retentivity epoxy resin is in molten condition during mixing；
3）Mixture after stirring is poured into 1）Matrix pitch in step adds acrylic emulsion, antifoaming agent stirring, stirring
When keep 115 DEG C of temperature or more, it is cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810133036.5A CN108411752A (en) | 2018-02-09 | 2018-02-09 | The restorative procedure of asphalt pavement pit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810133036.5A CN108411752A (en) | 2018-02-09 | 2018-02-09 | The restorative procedure of asphalt pavement pit |
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| CN108411752A true CN108411752A (en) | 2018-08-17 |
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| CN201810133036.5A Pending CN108411752A (en) | 2018-02-09 | 2018-02-09 | The restorative procedure of asphalt pavement pit |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109401519A (en) * | 2018-12-14 | 2019-03-01 | 大连理工大学 | A kind of bituminous pavement repair materials |
| CN109403175A (en) * | 2018-12-07 | 2019-03-01 | 湖南鑫长胜材料科技有限公司 | A kind of asphalt pavement pit repairing method |
| CN109468930A (en) * | 2018-11-08 | 2019-03-15 | 宁波市建筑设计研究院有限公司 | A kind of crack repairing method of bituminous pavement after snow |
| CN110241701A (en) * | 2019-05-27 | 2019-09-17 | 内蒙古路桥工程技术检测有限责任公司 | Repair outfit after pit slot detection |
| CN110565472A (en) * | 2019-09-09 | 2019-12-13 | 浙江宁波甬台温高速公路有限公司 | Side surface sticker for new and old road surface sealing of pit and construction method |
| CN110629648A (en) * | 2019-09-21 | 2019-12-31 | 西安永夷建设工程有限责任公司 | Asphalt cold material pit slot repairing structure and construction process |
| CN110777594A (en) * | 2019-11-07 | 2020-02-11 | 江苏路耐德公路养护技术有限公司 | Net-crack repairing and self-healing process and equipment for highway maintenance |
| CN113529551A (en) * | 2021-05-22 | 2021-10-22 | 浙江中桓建设有限公司 | Construction method for repairing road by using polyester glass fiber cloth |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109468930A (en) * | 2018-11-08 | 2019-03-15 | 宁波市建筑设计研究院有限公司 | A kind of crack repairing method of bituminous pavement after snow |
| CN109468930B (en) * | 2018-11-08 | 2020-11-17 | 宁波市建筑设计研究院有限公司 | Crack repairing method for asphalt pavement after snow |
| CN109403175A (en) * | 2018-12-07 | 2019-03-01 | 湖南鑫长胜材料科技有限公司 | A kind of asphalt pavement pit repairing method |
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| CN110241701A (en) * | 2019-05-27 | 2019-09-17 | 内蒙古路桥工程技术检测有限责任公司 | Repair outfit after pit slot detection |
| CN110565472A (en) * | 2019-09-09 | 2019-12-13 | 浙江宁波甬台温高速公路有限公司 | Side surface sticker for new and old road surface sealing of pit and construction method |
| CN110629648A (en) * | 2019-09-21 | 2019-12-31 | 西安永夷建设工程有限责任公司 | Asphalt cold material pit slot repairing structure and construction process |
| CN110777594A (en) * | 2019-11-07 | 2020-02-11 | 江苏路耐德公路养护技术有限公司 | Net-crack repairing and self-healing process and equipment for highway maintenance |
| CN110777594B (en) * | 2019-11-07 | 2021-06-11 | 江苏路耐德交通科技有限公司 | Net-crack repairing and self-healing process and equipment for highway maintenance |
| CN113529551A (en) * | 2021-05-22 | 2021-10-22 | 浙江中桓建设有限公司 | Construction method for repairing road by using polyester glass fiber cloth |
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Application publication date: 20180817 |