CN109704637A - A kind of pavement recycling agent and its preparation method and application - Google Patents
A kind of pavement recycling agent and its preparation method and application Download PDFInfo
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- CN109704637A CN109704637A CN201910152056.1A CN201910152056A CN109704637A CN 109704637 A CN109704637 A CN 109704637A CN 201910152056 A CN201910152056 A CN 201910152056A CN 109704637 A CN109704637 A CN 109704637A
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- pavement recycling
- recycling agent
- carbon dioxide
- pavement
- dioxide copolymer
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Abstract
The embodiment of the invention discloses a kind of pavement recycling agent, the pavement recycling agent includes following components by weight: 50-100 parts of carbon dioxide copolymer；10-20 parts of fibrous material；Nano-filled dose 1-5 parts.The invention also discloses the preparation methods of the pavement recycling agent, the described method comprises the following steps: 1) crushing carbon dioxide copolymer and are dissolved in solvent, form solution A, wherein the solvent is ethyl acetate or dimethyl carbonate；2) fibrous material and nano-filled dose are mixed, solution A obtained in the step 1) is added, is stirred together for forming mixture B.The invention also discloses the methods for using the pavement recycling agent to carry out disease pavement recycling.
Description
Technical field
The present embodiments relate to road rehabilitation technical fields, and in particular to a kind of pavement recycling agent and preparation method thereof and
Using.
Background technique
Road domestic at present is mainly asphalt road and cement road, and bituminous pavement time that is open to traffic all reaches 10 years even mostly
More long, however asphalt roads is easy aging by such environmental effects for a long time, is such as irradiated by sunlight, and rain drop erosion and temperature become
Change etc., the problems such as this makes during military service bituminous pavement that can generate track, crack, loose, pit slot, is especially handed in the modern times
Problem more so, is timely maintained particularly significant under the background of logical heavy duty, big flow and channelization.Asphalt pavement regeneration at present
Predominantly hot recycling and two kinds of cold renewal.Mixture obtains high temperature performance and fatigue behaviour compared to non-hot recycling after hot recycling
Road surface decreases, and project amount is big, long construction period, at high cost.Cold renewal can effectively improve the low temperature of regenerated road surface
Performance, but the effect of cold-regenerated road surface is affected by emulsified asphalt, many cold regeneration mix high-temperature behaviors are not high, especially
Waterproof performance and antiskid performance are bad.
Another commonplace road is cement road, and because concrete is a kind of fragile material, tensile strength is low, toughness
Difference, so easily generating cracking fault-layer-phenomenon, the restorative procedure of cement pavement mainly has two a few days ago after concrete pouring construction
Kind, one is being to overhaul, disease part road surface is cut, builds cement pavement after handling base again, another kind is
Joint filling is carried out with epoxy resin, overhauls method there are costs that high, the construction time is long, is unfavorable for the disadvantages of open to traffic；Epoxy resin
The disadvantages of it is poor with the cohesive force of tomography that joint filling method exists, easy to fall off, ineffective, ageing-resistant performance itself is bad, and its
Curing time is longer, and the contraction of this material and concrete material, dilatancy differ greatly, and is easy to cause repairing failure, repairing
Effect is poor.
Carbon dioxide copolymer material be using carbon dioxide as primary raw material be chemically synthesized prepared by green it is high
Molecular material, fully biodegradable.And it is cured in Dispoable medical dressing, medical package material, disposable infusion equipment etc.
With having obtained good utilization on material.
High based on carbon dioxide copolymer medical dressing waste regenerated utilization rate, exploitativeness is high and nontoxic,
Suitable for applying upper R and D in road rehabilitation technical field, it is also applied for the breakages such as public place ceramic tile, marble
Locate the research of repairing.Therefore, it is necessary to invent a kind of carbon dioxide copolymer regenerated road surface and preparation method thereof.
Summary of the invention
For this purpose, the embodiment of the present invention provides a kind of pavement recycling agent, difficulty is repaired to solve disease road surface in the prior art
The problem of.
To achieve the goals above, the embodiment of the present invention provides the following technical solutions:
One aspect of the present invention provides a kind of pavement recycling agent, and the pavement recycling agent includes by weight following
Component:
50-100 parts of carbon dioxide copolymer
10-20 parts of fibrous material
Nano-filled dose 1-5 parts.
Carbon dioxide copolymer is the Green Polymer being chemically synthesized using carbon dioxide as primary raw material
Material, it is nontoxic.Moreover, carbon dioxide copolymer can also effectively be combined with the surface of a wound of disease road, thus special
It is not suitable as pavement recycling agent use.
Preferably, the number-average molecular weight of the carbon dioxide copolymer is 30,000-16 ten thousand.
Preferably, the carbon dioxide copolymer includes carbon dioxide copolymer medical dressing leftover bits and pieces.
Carbon dioxide copolymer is widely used in medical field, often due to the characteristic that its is green non-poisonous and can explain completely
As Medical dressing, packaging material, infusion apparatus etc., also therefore, in the production in the associated materials such as Medical dressing field, can produce
Raw a large amount of leftover bits and pieces, pavement recycling agent of the invention provide a kind of solution that waste material recycles, being capable of effectively save road
The cost of face regeneration and production waste disposal.The medical dressing leftover bits and pieces of arbitrary proportion can be used in pavement recycling agent of the invention
Raw material sources as carbon dioxide copolymer.
Preferably, the fibrous material is natural fiber material.
Preferably, it is fine to be selected from basalt fibre, carbon fiber, straw fibers, corn stover for the natural fiber material
At least one of dimension.
Fibrous material can increase the toughness of pavement recycling agent provided by the invention, in practical applications, enable to repair
Road surface after multiple is more durable.Natural fiber material, low raw-material cost, wherein rice straw and corn stalk are used in the present invention
Stalk belongs to agricultural residue, and the present invention provides new scheme to handle these waste materials, is beneficial to energy conservation environmental protection.
Preferably, the fibrous material is the mixed of basalt fibre, carbon fiber, straw fibers and corn stalk fiber
Object is closed, the weight ratio of each component is basalt fibre: carbon fiber: straw fibers: corn stalk fiber in the mixture
=(1-3): (0.5-2): (4-6): (4-6).
Preferably, described nano-filled dose is nano silica.
Method of the invention can also be using other nano-filled dose with similar quality, such as nano-titanium dioxide.
Another aspect of the present invention provides the preparation method of the pavement recycling agent, and the method includes following steps
It is rapid:
1) carbon dioxide copolymer is crushed and is dissolved in solvent, form solution A, wherein the solvent is ethyl acetate
Or dimethyl carbonate；
2) fibrous material and nano-filled dose are mixed, solution A obtained in the step 1) is added, is stirred together for being formed mixed
Close material B.
Another aspect of the present invention, which is provided, carries out disease road surface again using the pavement recycling agent that the method is prepared
Raw method, the described method comprises the following steps:
I) ground surface material on periphery at disease road surface breakage is cut off and is broken into particle P；
Ii the particle P) is stirred, the solution A is added, is stirred together for, mixture B is then added, continues to stir
To paveio(u)r；
Iii) paveio(u)r is paved to go out in disease, strikes off, is compacted.
Preferably, disease road surface is soaked using solution A before step iii) is carried out, and is sprayed again after the completion of step iii)
Spill solution A.
Technical solution of the present invention has the advantages that
1. the present invention realizes the comprehensive utilization of waste material, environmentally protective, it is easy to obtain, at low cost, formula rationally, is made
Preparation Method is simple and reliable, is easy to construct, and is suitable for various cement pavements, bituminous pavement, airport pavement, repairing and conventional repair.
2. patching material of the present invention is that infiltration is combined and gluing combines with the combination on original road surface, make itself and disease road
The ability that face combines greatly enhances, while the period repaired is short, compression strength is high, has cold-resistant, heat-resisting ability, after repairing
Color tunable section has the function of that slowing down road surface expands with heat and contract with cold.
Detailed description of the invention
Fig. 1 is the photo on disease road surface.
Fig. 2 is the photo after disease road surface is repaired.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily, it is clear that described embodiment is the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
Embodiment 1
1. the blocky carbon dioxide copolymer raw material that number-average molecular weight is 30,000-16 ten thousand is cut into diameter using bale splitter
Then the blocky carbon dioxide copolymer being cut into is ground into particle using pulverizer, makes its diameter by the bulk less than 8cm
Less than 3mm；Carbon dioxide copolymer medical dressing leftover bits and pieces is ground into fragmentation status using pulverizer, is less than its area
25mm2。
2. electronic scale weighs carbon dioxide copolymer feed particles 30kg respectively, under carbon dioxide copolymer medical dressing
Heel fragment 50kg, ethyl acetate 200kg (or dimethyl carbonate), basalt fibre 2kg, carbon fiber 1kg, rice straw are fine
Tie up 5kg, corn stalk fiber 5kg, nano silica 2kg.Stirred tank is opened, is stirred with 300r/min, first by ethyl acetate
(or dimethyl carbonate) pours into stirred tank, in the case of stirring, carbon dioxide copolymer feed particles 30kg, stirring is added
The carbon dioxide copolymer pieces of waste material 30kg of recycling completely, is then poured into emulsion tank and continues stirring directly by straight dissolution in 3-6 hours
To being completely dissolved, stirred tank is closed, is impregnated 24 hours, blender is then turned on and stirs 1 hour, by remaining carbon dioxide copolymerization
Object medical dressing leftover bits and pieces 20kg pours into agitator tank, and stirring always is until dissolution is complete.Prepare carbon dioxide copolymer acetic acid
Ethyl ester (or dimethyl carbonate) solution A；
3. the breakage on disease road surface is removed, the disease road surface after removing is cut into area using bale splitter and is less than
The bulk of 10cm；Then the bulk being cut into is ground into particle using pulverizer.
It is stirred 5 minutes 4. disease pavement particles P is weighed 600kg and pours into blender, then pours into load weighted titanium dioxide
Carbon copolymer ethyl acetate (or dimethyl carbonate) solution 100kg, is stirred together for 5 minutes, finally by basalt fibre 2kg,
Carbon fiber 1.5kg, straw fibers 5kg, corn stalk fiber 5kg, nano silica 2kg pour into blender and are stirred together for
It 5 minutes, stirs evenly to form mixture and take out, material at this time is a kind of paving the way based on carbon dioxide copolymer waste material
Material.
5. road surface at disease is cleaned out, spray concentration be (5%-8%) carbon dioxide copolymer ethyl acetate (or
Person's dimethyl carbonate) solution, it soaks it by disease road surface completely, then dries 10 minutes, by mixture laying at disease,
It strikes off, is compacted after 1 hour, then spray carbon dioxide copolymer ethyl acetate (or the carbon of a certain concentration (8%-12%) again
Dimethyl phthalate) solution, it can be open to traffic after 4 hours, road surface at this time is a kind of carbon dioxide copolymer regenerated road surface.
Embodiment 2
Pavement recycling is carried out using the method in same embodiment 1, the difference is that the component proportion of regenerative agent.It (is shown in Table
1)
Embodiment 3
Pavement recycling is carried out using the method in same embodiment 1, the difference is that the component proportion of regenerative agent.It (is shown in Table
1)
Embodiment 4
Pavement recycling is carried out using the method in same embodiment 1, the difference is that the component proportion of regenerative agent.It (is shown in Table
1)
1 pavement recycling agent component table of table
Experimental example
Regenerated road surface in embodiment 1 is tested for the property, the results are shown in Table 2
2 regenerated road surface the performance test results of table
Regenerated road surface in embodiment 2-4 is detected according to all standard in upper table, as a result also meets every mark
It is quasi-.Fig. 1 and Fig. 2 gives the pavement behavior comparison of regeneration front and back in embodiment 1, it can be seen that pavement recycling works well.
It can be seen that the regenerated road surface of the embodiment of the present invention, compression strength, stabilization from the testing result of above embodiments
Property, elasticity modulus, flexural strength have all reached requirement, and are up to original road surface adhesion strength, mutually tie with disease road surface
The ability of conjunction is greatly enhanced than common regeneration method.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (10)
1. a kind of pavement recycling agent, which is characterized in that the pavement recycling agent includes following components by weight:
50-100 parts of carbon dioxide copolymer
10-20 parts of fibrous material
Nano-filled dose 1-5 parts.
2. pavement recycling agent according to claim 1, which is characterized in that the number-average molecular weight of the carbon dioxide copolymer
It is 30,000-16 ten thousand.
3. pavement recycling agent according to claim 2, which is characterized in that the carbon dioxide copolymer includes carbon dioxide
Copolymer medical dressing leftover bits and pieces.
4. pavement recycling agent according to claim 1, which is characterized in that the fibrous material is natural fiber material.
5. pavement recycling agent according to claim 4, which is characterized in that it is fine that the natural fiber material is selected from basalt
At least one of dimension, carbon fiber, straw fibers, corn stalk fiber.
6. pavement recycling agent according to claim 2, which is characterized in that the fibrous material is basalt fibre, carbon fiber
It ties up, the mixture of straw fibers and corn stalk fiber, the weight ratio of each component is basalt fibre in the mixture:
Carbon fiber: straw fibers: corn stalk fiber=(1-3): (0.5-2): (4-6): (4-6).
7. pavement recycling agent according to claim 1, which is characterized in that described nano-filled dose is nano silica.
8. the preparation method of pavement recycling agent described in any one of claim 1-7, which is characterized in that the method includes
Following steps:
1) carbon dioxide copolymer is crushed and is dissolved in solvent, form solution A, wherein the solvent is ethyl acetate or carbon
Dimethyl phthalate；
2) fibrous material and nano-filled dose are mixed, solution A obtained in the step 1) is added, is stirred together for forming mixture
B。
9. the method for carrying out disease pavement recycling using the pavement recycling agent that method according to any one of claims 8 is prepared, special
Sign is, the described method comprises the following steps:
I) ground surface material on periphery at disease road surface breakage is cut off and is broken into particle P；
Ii the particle P) is stirred, the solution A is added, is stirred together for, mixture B is then added, continues to stir to get paving
Pipeline material；
Iii) paveio(u)r is paved to go out in disease, strikes off, is compacted.
10. the method for disease pavement recycling according to claim 9, which is characterized in that used before step iii) is carried out
Solution A soaks disease road surface, and the spray solution A again after the completion of step iii).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910152056.1A CN109704637B (en) | 2019-02-28 | 2019-02-28 | Pavement regenerant and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910152056.1A CN109704637B (en) | 2019-02-28 | 2019-02-28 | Pavement regenerant and preparation method and application thereof |
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| Publication Number | Publication Date |
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| CN109704637A true CN109704637A (en) | 2019-05-03 |
| CN109704637B CN109704637B (en) | 2021-08-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115108759A (en) * | 2022-07-08 | 2022-09-27 | 东南大学 | Cold-mixing close-graded carbon dioxide copolymer mixture and preparation and paving methods thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007217611A (en) * | 2006-02-17 | 2007-08-30 | Dainichiseika Color & Chem Mfg Co Ltd | Biodegradable resin composition and molded product |
| CN106739346A (en) * | 2017-01-17 | 2017-05-31 | 广东工业大学 | A kind of polyurethane pavement |
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2019
- 2019-02-28 CN CN201910152056.1A patent/CN109704637B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007217611A (en) * | 2006-02-17 | 2007-08-30 | Dainichiseika Color & Chem Mfg Co Ltd | Biodegradable resin composition and molded product |
| CN106739346A (en) * | 2017-01-17 | 2017-05-31 | 广东工业大学 | A kind of polyurethane pavement |
Non-Patent Citations (3)
| Title |
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| 华树成等: "基于二氧化碳共聚物敷料应用的绿色医疗建设探索", 《中国医院管理》 * |
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| 穆岩等: "玄武岩纤维在京承高速路面维修工程中的应用", 《筑路机械与施工机械化》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115108759A (en) * | 2022-07-08 | 2022-09-27 | 东南大学 | Cold-mixing close-graded carbon dioxide copolymer mixture and preparation and paving methods thereof |
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Effective date of registration: 20190923 Address after: 130000 Yushan Road 2499, Changchun High-tech Zone, Jilin Province Applicant after: Jilin Jinyuan North Technology Development Co., Ltd. Address before: 130000 Yushan Road 2499, Changchun High-tech Zone, Jilin Province Applicant before: Feng Chao |
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