CN102720112A - Pavement asphalt surface layer crack welding material and construction technology thereof - Google Patents
Pavement asphalt surface layer crack welding material and construction technology thereof Download PDFInfo
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- CN102720112A CN102720112A CN201210224411XA CN201210224411A CN102720112A CN 102720112 A CN102720112 A CN 102720112A CN 201210224411X A CN201210224411X A CN 201210224411XA CN 201210224411 A CN201210224411 A CN 201210224411A CN 102720112 A CN102720112 A CN 102720112A
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Abstract
The invention belongs to the technical field of road engineering, and particularly relates to a pavement asphalt surface layer crack welding material and a construction technology thereof. The welding material is prepared from the following components in percentage by weight: 80-85% of aggregate, 10-15% of high polymer material and 3-5% of additive; and the pavement asphalt surface layer crack is repaired by the processes of probing, sorting, cleaning, welding and detection. In the invention, the high polymer material is used as an adhesive which can be effectively combined with the asphalt surface layer into a whole so as to fundamentally repair the crack; the problem of structural damage caused by the crack is solved, construction can be carried out at normal temperature without requiring heating, and the construction is not influenced by the season, temperature and environment; and the welding material provided by the invention has the advantages of low production cost, simple proportioning and construction technology and wide construction conditions, is firm and durable and can be combined with the crack into a whole.
Description
Technical field
The invention belongs to the highway construction technical field, particularly a kind of cost of production is low, proportioning and construction technology is simple, execution conditions are extensive, sturdy and durable, can and the integrated pavement asphalt top-crack in crack welding material and construction technology thereof.
Background technology
Because the destruction of long-time use and natural environment; Disease in various degree all can appear in common road and speedway in use for some time, and if the crack of pavement asphalt aspect for example is the untimely reparation of fruit; Will destroy the basic unit on road surface, maintenance is more difficult like this.
There are following point in conventional asphalt roofing crack treatment technology, technology and material:
(1) present punishment to the asphalt surface course crack is to adopt crack treatment materials such as base joint grouting glue or anti-splitting paster mostly; But these crack punishment material base joint grouting glues or anti-splitting paster can only solve the water shutoff problem; Can not fundamentally cure the crack, can't resolve the structural destruction problem that produces because of the crack;
(2) the asphalt concrete material nature difference of these crack treatment materials and bituminous paving is bigger; Can not effectively combine and form integral body with asphalt roofing; Crack treatment material and pavement asphalt surface layer expand with heat and contract with cold inconsistent like this; Ftracture very easily once more in the crack of handling well; Can only keep the very short time after the processing; Such seam is wanted repeated treatments, expend great manpower, material power;
(3) production technology of existing crack treatment material is complicated; And the conditional request to construction is strict, and constructing receives the influence of season, temperature and environment through regular meeting, under adverse circumstances; As in the rain, snow day, strong wind all can not construct, and causes the efficient of construction lower.
(4) conventional cementation of fissures construction is not carried out nondestructive testing to the crack disease, and is indeterminate to width, the degree of depth and the residing layer position in crack, the crack disease do not classified, and adopts unified cementation of fissures technology, and construction effect is poor.Cementation of fissures construction finishes the back and only the surface of the cementation of fissures is detected, and does not detect the degree of depth and compactness that cementation of fissures material pours into, and construction quality detects not comprehensive.
Summary of the invention
The objective of the invention is to overcome the deficiency that exists in the prior art and a kind of cost of production that provides is low, proportioning and construction technology is simple, execution conditions are extensive, sturdy and durable, can and the integrated pavement asphalt top-crack in crack welding material and construction technology thereof.
The objective of the invention is to realize like this:
A kind of pavement asphalt top-crack welding material, it is to be processed according to following percentage by weight by each component: aggregate 80～85%, macromolecular material 10～15%, additive 3～5%.
Described aggregate is the sandstone material of 0-0.5mm or 0.5-3mm for the material footpath.
Described macromolecular material is monocomponent polyurethane or dual-component polyurethane or liquid resin or methyl methacrylate or styrene.
Described additive is one or several combinations in butyl acrylate, benzene dimethylamine, ethylenediamine, the polyacrylic acid.
The construction technology of described pavement asphalt top-crack welding material, this construction technology comprises the steps:
Step 1, detection: utilize position, the degree of depth and the width of GPR detection pavement asphalt top-crack, and record;
Step 2, select materials: the material footpath of the aggregate that the width of surveying the crack that obtains based on step 1 is confirmed to use; Wherein fracture width directly is the pavement asphalt top-crack welding material of the aggregate preparation of 0.5-3mm greater than the employing material of 5 mm, and fracture width directly is the pavement asphalt top-crack welding material of the aggregate preparation of 0-0.5mm less than the employing material of 5 mm;
Step 3, cleaning: at first the crack cleaning is clean with broom, once more the crack is blown clean with the forest extinguishing device then;
Step 4, welding: the pavement asphalt top-crack welding material that obtains during step 2 selected materials is sent into the pavement crack welding equipment; Weld in crack after using the pavement crack welding equipment to step 3 cleaning; To weld material and evenly be pressed into the crack, the nozzle of control pavement crack welding equipment is close to pavement crack in the process of welding, output pressure is 8Mpa; Welding material output quantity is that 6kg/min, speed of welding are 0.5 m/min;
Step 5, detect: adopt the radar nondestructive testing and get core and detect the Crack Detection after the mode that combines is welded step 4.
Used pavement crack welding equipment is the general bonding machine of pavement crack in described step 4 welding.
The present invention compares with prior art and has the following advantages:
1) pavement asphalt top-crack welding material of the present invention is processed by aggregate, macromolecular material and additive; Proportioning is simple; Adopt macromolecular material as bonding agent,, can effectively combine to form whole with asphalt surface course because the viscosity of macromolecular material is high and have permeability and the strong advantage of dilatancy; Fundamentally cure the crack, solved the structural destruction problem that produces because of the crack.The crack structure that welding is good is stable, and the life-span is long, does not need repeated treatments, has practiced thrift manpower and financial resources, has reduced the maintenance cost in later stage;
Do not need heating when 2) pavement asphalt top-crack welding material of the present invention is constructed; Can construct at normal temperatures; Easy construction; Construction is not subjected to season, temperature and ambient influnence; Can construct throughout the year; Even under adverse circumstances, as in the rain, snow day, can construct during strong wind, have execution conditions extensively and the simple advantage of constructing;
3) use GPR road pavement crack to carry out nondestructive testing earlier before the top course crack welding procedure construction of the present invention; Detect width, the degree of depth and the residing layer position in every crack; Classify according to width, the degree of depth road pavement crack in crack then, select different road top-crack welding material and different construction technologies for different cracks.Construction finishes the back and adopts GPR to combine to get core, inspection crack welding effect.
The specific embodiment
Below in conjunction with embodiment the present invention is done further explanation.
Embodiment 1
A kind of pavement asphalt top-crack welding material, it is to be processed by aggregate 84kg, macromolecular material 12kg and additive 3kg.
Described aggregate is the sandstone material of 0-0.5mm or 0.5-3mm for the material footpath.
Described macromolecular material is monocomponent polyurethane
.
Described additive is one or several combinations
in butyl acrylate, benzene dimethylamine, ethylenediamine, the polyacrylic acid.
The construction technology of described pavement asphalt top-crack welding material, this construction technology comprises the steps:
Step 1, detection: utilize position, the degree of depth and the width of GPR detection pavement asphalt top-crack, and record;
Step 2, select materials: the material footpath of the aggregate that the width of surveying the crack that obtains based on step 1 is confirmed to use; Wherein fracture width directly is the pavement asphalt top-crack welding material of the aggregate preparation of 0.5-3mm greater than the employing material of 5 mm, and fracture width directly is the pavement asphalt top-crack welding material of the aggregate preparation of 0-0.5mm less than the employing material of 5 mm;
Step 3, cleaning: at first the crack cleaning is clean with broom, once more the crack is blown clean with the forest extinguishing device then;
Step 4, welding: the pavement asphalt top-crack welding material that obtains during step 2 selected materials is sent into the pavement crack welding equipment; Weld in crack after using the pavement crack welding equipment to step 3 cleaning; To weld material and evenly be pressed into the crack, the nozzle of control pavement crack welding equipment is close to pavement crack in the process of welding, output pressure is 8Mpa; Welding material output quantity is that 6kg/min, speed of welding are 0.5 m/min;
Step 5, detect: adopt the radar nondestructive testing and get core and detect the Crack Detection after the mode that combines is welded step 4.
Used pavement crack welding equipment is the general bonding machine of pavement crack in described step 4 welding.
Welding material technical data sees the following form:
Embodiment 2
A kind of pavement asphalt top-crack welding material, it is to be processed by aggregate 85kg, macromolecular material 11kg and additive 4kg.
Described aggregate is the sandstone material of 0-0.5mm or 0.5-3mm for the material footpath.
Described macromolecular material is dual-component polyurethane
.
Described additive is one or several combinations
in butyl acrylate, benzene dimethylamine, ethylenediamine, the polyacrylic acid.
The construction technology of described pavement asphalt top-crack welding material, this construction technology comprises the steps:
Step 1, detection: utilize position, the degree of depth and the width of GPR detection pavement asphalt top-crack, and record;
Step 2, select materials: the material footpath of the aggregate that the width of surveying the crack that obtains based on step 1 is confirmed to use; Wherein fracture width directly is the pavement asphalt top-crack welding material of the aggregate preparation of 0.5-3mm greater than the employing material of 5 mm, and fracture width directly is the pavement asphalt top-crack welding material of the aggregate preparation of 0-0.5mm less than the employing material of 5 mm;
Step 3, cleaning: at first the crack cleaning is clean with broom, once more the crack is blown clean with the forest extinguishing device then;
Step 4, welding: the pavement asphalt top-crack welding material that obtains during step 2 selected materials is sent into the pavement crack welding equipment; Weld in crack after using the pavement crack welding equipment to step 3 cleaning; To weld material and evenly be pressed into the crack, the nozzle of control pavement crack welding equipment is close to pavement crack in the process of welding, output pressure is 8Mpa; Welding material output quantity is that 6kg/min, speed of welding are 0.5 m/min;
Step 5, detect: adopt the radar nondestructive testing and get core and detect the Crack Detection after the mode that combines is welded step 4.
Used pavement crack welding equipment is the general bonding machine of pavement crack in described step 4 welding.
Welding material technical data sees the following form:
Embodiment 3
A kind of pavement asphalt top-crack welding material, it is to be processed by aggregate 83kg, macromolecular material 14kg and additive 3kg.
Described aggregate is the sandstone material of 0-0.5mm or 0.5-3mm for the material footpath.
Described macromolecular material is liquid resin
.
Described additive is one or several combinations
in butyl acrylate, benzene dimethylamine, ethylenediamine, the polyacrylic acid.
The construction technology of described pavement asphalt top-crack welding material, this construction technology comprises the steps:
Step 1, detection: utilize position, the degree of depth and the width of GPR detection pavement asphalt top-crack, and record;
Step 2, select materials: the material footpath of the aggregate that the width of surveying the crack that obtains based on step 1 is confirmed to use; Wherein fracture width directly is the pavement asphalt top-crack welding material of the aggregate preparation of 0.5-3mm greater than the employing material of 5 mm, and fracture width directly is the pavement asphalt top-crack welding material of the aggregate preparation of 0-0.5mm less than the employing material of 5 mm;
Step 3, cleaning: at first the crack cleaning is clean with broom, once more the crack is blown clean with the forest extinguishing device then;
Step 4, welding: the pavement asphalt top-crack welding material that obtains during step 2 selected materials is sent into the pavement crack welding equipment; Weld in crack after using the pavement crack welding equipment to step 3 cleaning; To weld material and evenly be pressed into the crack, the nozzle of control pavement crack welding equipment is close to pavement crack in the process of welding, output pressure is 8Mpa; Welding material output quantity is that 6kg/min, speed of welding are 0.5 m/min;
Step 5, detect: adopt the radar nondestructive testing and get core and detect the Crack Detection after the mode that combines is welded step 4.
Used pavement crack welding equipment is the general bonding machine of pavement crack in described step 4 welding.
Welding material technical data sees the following form:
Embodiment 4
A kind of pavement asphalt top-crack welding material, it is to be processed by aggregate 80kg, macromolecular material 15kg and additive 5kg.
Described aggregate is the sandstone material of 0-0.5mm or 0.5-3mm for the material footpath.
Described macromolecular material is methyl methacrylate
.
Described additive is one or several combinations
in butyl acrylate, benzene dimethylamine, ethylenediamine, the polyacrylic acid.
The construction technology of described pavement asphalt top-crack welding material, this construction technology comprises the steps:
Step 1, detection: utilize position, the degree of depth and the width of GPR detection pavement asphalt top-crack, and record;
Step 2, select materials: the material footpath of the aggregate that the width of surveying the crack that obtains based on step 1 is confirmed to use; Wherein fracture width directly is the pavement asphalt top-crack welding material of the aggregate preparation of 0.5-3mm greater than the employing material of 5 mm, and fracture width directly is the pavement asphalt top-crack welding material of the aggregate preparation of 0-0.5mm less than the employing material of 5 mm;
Step 3, cleaning: at first the crack cleaning is clean with broom, once more the crack is blown clean with the forest extinguishing device then;
Step 4, welding: the pavement asphalt top-crack welding material that obtains during step 2 selected materials is sent into the pavement crack welding equipment; Weld in crack after using the pavement crack welding equipment to step 3 cleaning; To weld material and evenly be pressed into the crack, the nozzle of control pavement crack welding equipment is close to pavement crack in the process of welding, output pressure is 8Mpa; Welding material output quantity is that 6kg/min, speed of welding are 0.5 m/min;
Step 5, detect: adopt the radar nondestructive testing and get core and detect the Crack Detection after the mode that combines is welded step 4.
Used pavement crack welding equipment is the general bonding machine of pavement crack in described step 4 welding.
Welding material technical data sees the following form:
Embodiment 5
A kind of pavement asphalt top-crack welding material, it is to be processed by aggregate 82kg, macromolecular material 13.5kg and additive 4.5kg.
Described aggregate is the sandstone material of 0-0.5mm or 0.5-3mm for the material footpath.
Described macromolecular material is styrene
.
Described additive is one or several combinations
in butyl acrylate, benzene dimethylamine, ethylenediamine, the polyacrylic acid.
The construction technology of described pavement asphalt top-crack welding material, this construction technology comprises the steps:
Step 1, detection: utilize position, the degree of depth and the width of GPR detection pavement asphalt top-crack, and record;
Step 2, select materials: the material footpath of the aggregate that the width of surveying the crack that obtains based on step 1 is confirmed to use; Wherein fracture width directly is the pavement asphalt top-crack welding material of the aggregate preparation of 0.5-3mm greater than the employing material of 5 mm, and fracture width directly is the pavement asphalt top-crack welding material of the aggregate preparation of 0-0.5mm less than the employing material of 5 mm;
Step 3, cleaning: at first the crack cleaning is clean with broom, once more the crack is blown clean with the forest extinguishing device then;
Step 4, welding: the pavement asphalt top-crack welding material that obtains during step 2 selected materials is sent into the pavement crack welding equipment; Weld in crack after using the pavement crack welding equipment to step 3 cleaning; To weld material and evenly be pressed into the crack, the nozzle of control pavement crack welding equipment is close to pavement crack in the process of welding, output pressure is 8Mpa; Welding material output quantity is that 6kg/min, speed of welding are 0.5 m/min;
Step 5, detect: adopt the radar nondestructive testing and get core and detect the Crack Detection after the mode that combines is welded step 4.
Used pavement crack welding equipment is the general bonding machine of pavement crack in described step 4 welding.
Welding material technical data sees the following form:
Claims (6)
1. a pavement asphalt top-crack welding expects that it is characterized in that: it is to be processed according to following percentage by weight by each component: aggregate 80～85%, macromolecular material 10～15%, additive 3～5%.
2. pavement asphalt top-crack welding material as claimed in claim 1 is characterized in that: described aggregate is the sandstone material of material footpath for 0-0.5mm or 0.5-3mm.
3. pavement asphalt top-crack welding material as claimed in claim 1, it is characterized in that: described macromolecular material is monocomponent polyurethane or dual-component polyurethane or liquid resin or methyl methacrylate or styrene.
4. the welding material in road surface as claimed in claim 1 check crack, be full of cracks crack, it is characterized in that: described additive is one or several combinations in butyl acrylate, benzene dimethylamine, ethylenediamine, the polyacrylic acid.
5. the construction technology of pavement asphalt top-crack welding material as claimed in claim 1, it is characterized in that: this construction technology comprises the steps
:
Step 1, detection: utilize position, the degree of depth and the width of GPR detection pavement asphalt top-crack, and record;
Step 2, select materials: the material footpath of the aggregate that the width of surveying the crack that obtains based on step 1 is confirmed to use; Wherein fracture width directly is the pavement asphalt top-crack welding material of the aggregate preparation of 0.5-3mm greater than the employing material of 5 mm, and fracture width directly is the pavement asphalt top-crack welding material of the aggregate preparation of 0-0.5mm less than the employing material of 5 mm;
Step 3, cleaning: at first the crack cleaning is clean with broom, once more the crack is blown clean with the forest extinguishing device then;
Step 4, welding: the pavement asphalt top-crack welding material that obtains during step 2 selected materials is sent into the pavement crack welding equipment; Weld in crack after using the pavement crack welding equipment to step 3 cleaning; To weld material and evenly be pressed into the crack, the nozzle of control pavement crack welding equipment is close to pavement crack in the process of welding, output pressure is 8Mpa; Welding material output quantity is that 6kg/min, speed of welding are 0.5 m/min;
Step 5, detect: adopt the radar nondestructive testing and get core and detect the Crack Detection after the mode that combines is welded step 4.
6. the construction technology of pavement asphalt top-crack welding material as claimed in claim 5 is characterized in that: used pavement crack welding equipment is the general bonding machine of pavement crack in described step 4 welding.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210224411.XA CN102720112B (en) | 2012-07-02 | 2012-07-02 | The construction technology of pavement asphalt top-crack welding material |
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| CN201210224411.XA CN102720112B (en) | 2012-07-02 | 2012-07-02 | The construction technology of pavement asphalt top-crack welding material |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900015A (en) * | 2012-11-12 | 2013-01-30 | 河南万里路桥集团有限公司 | Traceless heat sealing construction technology of semi-rigid base asphalt pavement crack |
| CN103485265A (en) * | 2013-09-27 | 2014-01-01 | 华南理工大学 | Road quality detection method of UWB (ultra wide band) GPR (GPR) and detection device of method |
| CN103758008A (en) * | 2013-12-24 | 2014-04-30 | 英达公路再生科技（集团）有限公司 | Method for repairing bituminous pavement cracks with molding asphalt rubber |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030090016A1 (en) * | 2001-08-13 | 2003-05-15 | Zoran Petrovic | Polymer concrete and method for preparation thereof |
| JP2003327835A (en) * | 2002-05-08 | 2003-11-19 | Isao Tazaki | Road-repairing material |
| CN101591883A (en) * | 2009-06-09 | 2009-12-02 | 赵海刚 | Concrete road crack treating method |
| CN101734885A (en) * | 2009-12-22 | 2010-06-16 | 康可睿建筑材料(上海)有限公司 | Polyurethane elastic self-leveling mortar |
| KR20120035751A (en) * | 2010-10-06 | 2012-04-16 | (주)에스엔건설 | The pavement method for the slip prevention of the road |
-
2012
- 2012-07-02 CN CN201210224411.XA patent/CN102720112B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030090016A1 (en) * | 2001-08-13 | 2003-05-15 | Zoran Petrovic | Polymer concrete and method for preparation thereof |
| JP2003327835A (en) * | 2002-05-08 | 2003-11-19 | Isao Tazaki | Road-repairing material |
| CN101591883A (en) * | 2009-06-09 | 2009-12-02 | 赵海刚 | Concrete road crack treating method |
| CN101734885A (en) * | 2009-12-22 | 2010-06-16 | 康可睿建筑材料(上海)有限公司 | Polyurethane elastic self-leveling mortar |
| KR20120035751A (en) * | 2010-10-06 | 2012-04-16 | (주)에스엔건설 | The pavement method for the slip prevention of the road |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900015A (en) * | 2012-11-12 | 2013-01-30 | 河南万里路桥集团有限公司 | Traceless heat sealing construction technology of semi-rigid base asphalt pavement crack |
| CN102900015B (en) * | 2012-11-12 | 2015-09-09 | 河南万里路桥集团有限公司 | The seamless thermal weld construction technology in semi-rigid asphalt pavement crack |
| CN103485265A (en) * | 2013-09-27 | 2014-01-01 | 华南理工大学 | Road quality detection method of UWB (ultra wide band) GPR (GPR) and detection device of method |
| CN103758008A (en) * | 2013-12-24 | 2014-04-30 | 英达公路再生科技（集团）有限公司 | Method for repairing bituminous pavement cracks with molding asphalt rubber |
| CN103758008B (en) * | 2013-12-24 | 2016-07-06 | 英达公路再生科技（集团）有限公司 | Asphalt pavement crack molding asphalt rubber is squeegeeed method |
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|---|---|
| CN102720112B (en) | 2015-08-19 |
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Address after: 461000 Yongchang West Road, Henan, Xuchang Patentee after: Henan Wanli Transportation Technology Group Co., Ltd. Address before: 461000 Henan Wanli Road Bridge Group Co., Ltd. Private Science and Technology Park, Weidu District, Xuchang City, Henan Province Patentee before: He'nan Wanli Road & Bridge Group Co., Ltd. |
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