CN105837089A - High-elastic rough rubber granular asphalt mixture preparation method - Google Patents
High-elastic rough rubber granular asphalt mixture preparation method Download PDFInfo
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- CN105837089A CN105837089A CN201610050869.6A CN201610050869A CN105837089A CN 105837089 A CN105837089 A CN 105837089A CN 201610050869 A CN201610050869 A CN 201610050869A CN 105837089 A CN105837089 A CN 105837089A
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- 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
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Abstract
The invention discloses a high-elastic rough rubber granular asphalt mixture preparation method. The method comprises adding 20 parts by weight of rubber asphalt powder into 100 parts by weight of an asphalt matrix, carrying out stirring for a reaction at a temperature of 180-200 DEG C for 50-100min to obtain rubber asphalt, heating 86-88 parts by weight of the aggregate to a temperature of 190-200 DEG C, adding 2-3 parts by weight of rubber particles into the aggregate, carrying out dry stirring for 35-40s, adding 6.3-6.5 parts by weight of rubber asphalt into the mixture, carrying out wet stirring for 40-50s, adding 10-11 parts by weight of mineral powder into the mixture and carrying out stirring for 40-50s to obtain the high-elastic rough rubber granular asphalt mixture finished product. The high-elastic rough rubber granular asphalt mixture has good road and deicing performances and good ice-resistant durability, is economic and environmentally friendly and has a wide market application prospect.
Description
Technical field
The invention belongs to road pavement field of material technology.A kind of high-elastic rough type granulated crumb rubber asphalt mixture preparation method, for suppressing the ice slush of pavement of road.
Background technology
Easily there is ice slush disaster in the express highway pavement in humidity mountain area, Southwestern China plateau, has a strong impact on traffic driving safety.The ice slush in these areas belongs to sleet ice slush, there is features such as " have a very wide distribution, persistent period length, thickness are thin, be difficult to root out ", therefore sleet ice slush once produces, and with economic development, traffic safety, the road network traffic capacity, road asset management, social stability will be caused serious impact.It is exactly a process constantly accelerating the failure, slackening performance of asphalt mixture and durability that sleet forms the process of ice slush, wanting the destruction incessantly reducing or slackening ice slush in winter as early as possible to bituminous paving, making asphalt as early as possible can the spontaneous ice slush removing top layer be a ultimate solution direction before ice slush is formed or in forming process.About the technical method of suppression road surface ice slush, main employing pre-storage salt pavement technique and rubber particle sheet pavement.
Pre-storage salt pavement technique mainly uses a kind of special Verglimit granule of addition or Mafilon powder; owing to these road surfaces anti-ices insult product materials under the long-term rain in road surface later stage, light, load action; often occur that a large amount of of salinity scatter and disappear; space, road surface is caused to increase; affect the durability on road surface; and will result in the corrosion on road surface, the environment around severe contamination, do not meet China's highway Oriented Green, theory that environmental protection direction is developed.
Granulated crumb rubber asphalt mixture road surface deicing principle is that this kind of compound has good deformation behavior, utilize when road surface occurs ice slush different with the stress that its surface after driving produces in road travel and produce deformation, such that it is able to effectively fractureed by the bulk ice slush on road surface.What is more important, granulated crumb rubber asphalt mixture road surface deicing technology has been complied with China's " green highway " idea of development, effectively " has been made a silk purse out of a sow's ear " by substantial amounts of automobile waste old tire.But using granulated crumb rubber asphalt mixture prepared by traditional design method, its pavement performance is relatively poor, and high/low temperature, water stability aspect cannot be taken into account simultaneously.Therefore preparing one and have good pavement performance, the notable and economic and environment-friendly high-elastic rough type rubber grain asphalt compound of deicing effect necessitates.
Summary of the invention
It is an object of the invention to provide the novel preparation method of a kind of high-elastic rough type granulated crumb rubber asphalt mixture.
The technical scheme is that
The preparation method of a kind of high-elastic rough type granulated crumb rubber asphalt mixture, comprises the following steps:
1. the rubber powder of 20 weight portions is joined in the matrix pitch of 100 weight portions, under conditions of 180～200 DEG C, stirring reaction 50～100min, make rubber asphalt.
2. upper step 86～gathering materials of 88 weight portions are heated to 190～200 DEG C；Add the rubber grain dry mixing 35～40s of 2～3 weight portions, then under the conditions of 160～170 DEG C, add the step 1 of 6.3～6.5 weight portions) rubber asphalt that obtains, wet-mixing 40～50s, it is eventually adding the limestone dust of 10～11 weight portions, continue mix 40～50s, i.e. prepare high-elastic rough type granulated crumb rubber asphalt mixture finished product；Described gather materials for basalt, limestone or diabase.
The powder size of above-mentioned rubber powder is 30～60 mesh；
Above-mentioned matrix pitch should preferably No. 70 bi tumenf orr oads, and all technical of matrix pitch all should meet corresponding specification technique requirement.
Above-mentioned stirring should use the mixing plant of low speed vane type, to prevent the alr mode of high speed shear from causing the continuous decline of rubber asphalt viscosity.
Above-mentioned gather materials should preferred basaltic broken stone, breeze must use limestone dust.In order to ensure that the pavement performance of high-elastic rough type granulated crumb rubber asphalt mixture meets requirement, the various mineral aggregates used should must be fulfilled for the specification " standard specification for construction and acceptance of highway asphalt pavement " (JTG F40-2004) the various performance requirements to highway mineral aggregate.
Above-mentioned gathering materials to meet the requirement of following grading limit:
Rubber grain gathers materials with the particle diameters such as isopyknic mode replacement, owing to the granularmetric composition of rubber grain is concentrated mainly on 2.36～4.75mm these shelves, percent of pass under other sieve apertures is less, therefore rubber grain is in the case of interior volume is few, compared with the aggregate grading not mixing rubber grain, the percent of pass of 4.75mm sieve aperture changes greatly, and the percent of pass under other sieve apertures is less, and user should select according to practical situation and adjust the aggregate grading after mixing rubber grain.
Above-mentioned rubber grain should meet following technology and require:
General when 0～3mm:3～5mm rubber grain carries out compound with 1:6 mass ratio, its formate gradation composition substantially meets the grating requirement of above-mentioned rubber grain.
Above-mentioned rubber asphalt should be saved in the temperature of about 175 DEG C after having prepared, and the holding time typically must not exceed 4h, and rubber asphalt viscosity otherwise can be made to be remarkably decreased.
The expansion rate of the high-elastic rough type granulated crumb rubber asphalt mixture of gained of the present invention should be less than 0.5%, and voidage is 3%～4%, and elastic return deformability is not less than 6%.
The high-elastic rough type granulated crumb rubber asphalt mixture pavement performance index of gained of the present invention is: wheel tracking test dynamic stability is more than 3000 times/mm, low-temperature bending strain is more than 2800 μ ε, residual stability be not less than 80% and freeze-thaw split strength ratio be not less than 75%, infiltration coefficient be less than 120ml/min.
The high-elastic rough type granulated crumb rubber asphalt mixture that the preparation method of the present invention obtains, has good pavement performance, that effect is insulted in deicing is notable and economic and environment-friendly.
Accompanying drawing explanation
Fig. 1 is the destruction situation map of the bitumen mixture specimen top layer ice slush prepared by the embodiment of the present invention 1.
Fig. 2 is the destruction situation map of the bitumen mixture specimen top layer ice slush prepared by this life inventive embodiments 2.
Fig. 3 is the destruction situation map of the bitumen mixture specimen top layer ice slush prepared by the embodiment of the present invention 3.
Detailed description of the invention
The present invention is expanded on further, it should be appreciated that embodiment is not intended to limit protection scope of the present invention below in conjunction with embodiment.
Embodiment 1
Preparing high-elastic rough type granulated crumb rubber asphalt mixture, operating procedure is as follows:
1, the rubber powder of 20 weight portions is joined in the matrix pitch of 100 weight portions, under conditions of 180 DEG C, stirring reaction 50min, makes rubber asphalt；
2, the limestone of 86 weight portions is heated to 190 DEG C, add the rubber grain dry mixing 35s of 3 weight portions, then under the conditions of 160 DEG C, add the rubber asphalt that step a of 6.5 weight portions obtains, wet-mixing 40s, it is eventually adding the limestone dust of 11 weight portions, continue mix 40s, i.e. prepare high-elastic rough type granulated crumb rubber asphalt mixture finished product.The destruction situation of prepared bitumen mixture specimen top layer ice slush is as shown in Figure 1.
Above-mentioned rubber grain meets technology and requires:
Above-mentioned design grating of gathering materials is as follows, meets the grating gathered materials and requires:
Embodiment 2
Prepare high-elastic rough type granulated crumb rubber asphalt mixture as follows:
1, the rubber powder of 20 weight portions is joined in the matrix pitch of 100 weight portions, under conditions of 190 DEG C, stirring reaction 75min, makes rubber asphalt；
2, the basalt of 87 weight portions is heated to 195 DEG C, add the rubber grain dry mixing 38s of 2.5 weight portions, then under the conditions of 165 DEG C, add the rubber asphalt that step a of 6.4 weight portions obtains, wet-mixing 45s, it is eventually adding the limestone dust of 10.5 weight portions, continue mix 45s, i.e. prepare high-elastic rough type granulated crumb rubber asphalt mixture finished product.The destruction situation of prepared bitumen mixture specimen top layer ice slush is as shown in Figure 2.
Above-mentioned rubber grain meets technology and requires:
Above-mentioned design grating of gathering materials is as follows, meets the grating gathered materials and requires:
Embodiment 3
Prepare high-elastic rough type granulated crumb rubber asphalt mixture as follows:
1, the rubber powder of 20 weight portions is joined in the matrix pitch of 100 weight portions, under conditions of 200 DEG C, stirring reaction 100min, makes rubber asphalt；
2, the diabase of 88 weight portions is heated to 200 DEG C, add the rubber grain dry mixing 40s of 2 weight portions, then under the conditions of 170 DEG C, add the rubber asphalt that step a of 6.3 weight portions obtains, wet-mixing 50s, it is eventually adding the limestone dust of 10 weight portions, continue mix 50s, i.e. prepare high-elastic rough type granulated crumb rubber asphalt mixture finished product.The destruction situation of prepared bitumen mixture specimen top layer ice slush is as shown in Figure 3.
Above-mentioned rubber grain meets technology and requires:
Above-mentioned design grating of gathering materials is as follows, meets the grating gathered materials and requires:
High-elastic rough type granulated crumb rubber asphalt mixture above-described embodiment 1, embodiment 2 and embodiment 3 prepared uses secondary two-sided marshall compaction method molding marshal piece, two-sided under the conditions of 160 DEG C i.e. for the first time hit 50 times and be shaped, when temperature drops to 85 DEG C, carry out second time and the most two-sided hit 25 times.The Marshall Test technical specification of this compound is tested in the standard method specified according to " highway engineering Colophonium and Asphalt Mixture Experiment code " (JTG E20-2011), the results are shown in Table 1.
The volume parameter of table 1 embodiment
From table 1, it is satisfied by designing requirement by the Marshall Test technical specification of high-elastic rough type granulated crumb rubber asphalt mixture prepared by embodiment 1, embodiment 2 and embodiment 3.
The standard method that above-described embodiment 1, embodiment 2 and the high-elastic rough type granulated crumb rubber asphalt mixture prepared by embodiment 3 specify according to " highway engineering Colophonium and Asphalt Mixture Experiment code " (JTG E20-2011) is tested its wheel tracking test dynamic stability, low temperature bend test failure strain, residual stability and freeze-thaw split strength ratio and infiltration coefficient, and result of the test is shown in Table 2.
The pavement performance test result of table 2 embodiment
From table 2, all meet technology requirement by high-temperature behavior, cryogenic property, water stability and the anti-permeability performance of high-elastic rough type granulated crumb rubber asphalt mixture prepared by embodiment 1, embodiment 2 and embodiment 3, show that the high-elastic rough type granulated crumb rubber asphalt mixture of the present invention has preferable pavement performance.
Evaluate the main flexible recovery deformation of deicing effect and the deicing capability the two technical specification of high-elastic rough type granulated crumb rubber asphalt mixture.The technology of the deicing effect of high-elastic rough type granulated crumb rubber asphalt mixture requires it is that elastic return deformability answers >=6%, and can effectively reduce ice slush formation area, improves the discontinuity of road surface ice slush.
Above-described embodiment 1, embodiment 2 and the high-elastic rough type granulated crumb rubber asphalt mixture prepared by embodiment 3 are carried out at cryogenic temperature is respectively-2 DEG C and-4 DEG C elastic deformability's test, and result of the test is shown in Table 3.
Elastic deformability's result of the test of table 3 embodiment
From table 3, as the elastic return deformation of embodiment 1, embodiment 2 and the high-elastic rough type granulated crumb rubber asphalt mixture prepared by embodiment 3 respectively at temperature-2 DEG C and-4 DEG C both greater than 6%, meet the technology requirement of elastic return this index of deformation.
High-elastic rough type granulated crumb rubber asphalt mixture prepared by above-described embodiment 1, embodiment 2 and embodiment 3 is made rut plate, at ice layer thickness 4mm, carrying out indoor ice slush simulation test under the conditions of-2 DEG C, the destruction situation of embodiment 1, embodiment 2 and the high-elastic rough type granulated crumb rubber asphalt mixture test specimen top layer ice slush prepared by embodiment 3 is shown in Fig. 1, Fig. 2 and Fig. 3 respectively.Relatively big by the ice sheet degree of crushing of surface of test piece seen from Fig. 1, Fig. 2 and Fig. 3, there are more crackle and crack above.
Comprehensive above embodiment 1, embodiment 2 and the elastic return deformation of the high-elastic rough type granulated crumb rubber asphalt mixture prepared by embodiment 3 and the result of the test of deicing capability these two aspects, show that the deicing effect of the high-elastic rough type granulated crumb rubber asphalt mixture of the present invention is notable.
Claims (8)
1. a preparation method for high-elastic rough type granulated crumb rubber asphalt mixture, comprises the following steps:
1) rubber powder of 20 weight portions is joined in the matrix pitch of 100 weight portions, 180～200
Under conditions of DEG C, stirring reaction 50～100min, make rubber asphalt；
2) upper step 86～gathering materials of 88 weight portions are heated to 190～200 DEG C；Add 2～3 weight portions
Rubber grain dry mixing 35～40s, under the conditions of 160～170 DEG C, then add 6.3～6.5 weight portions
Step 1) rubber asphalt that obtains, wet-mixing 40～50s, be eventually adding the limestone of 10～11 weight portions
Breeze, continues mix 40～50s, i.e. prepares high-elastic rough type granulated crumb rubber asphalt mixture finished product；Described
Gather materials for basalt, limestone or diabase.
The preparation method of high-elastic rough type granulated crumb rubber asphalt mixture the most according to claim 1,
It is characterized in that, the powder size of described rubber powder is 30～60 mesh.
The preparation method of high-elastic rough type granulated crumb rubber asphalt mixture the most according to claim 1,
It is characterized in that, described matrix pitch is No. 70 bi tumenf orr oads.
The preparation method of high-elastic rough type granulated crumb rubber asphalt mixture the most according to claim 1,
It is characterized in that, described stirring uses the mixing plant of low speed vane type.
The preparation method of high-elastic rough type granulated crumb rubber asphalt mixture the most according to claim 1,
It is characterized in that, described gathering materials to meet following grading limit and require:
The preparation method of high-elastic rough type granulated crumb rubber asphalt mixture the most according to claim 1,
It is characterized in that, described rubber grain to meet following technology and require:
The preparation method of high-elastic rough type rubber grain compound the most according to claim 1, it is special
Levy and be, described step 2) in the temperature of rubber asphalt that adds should be maintained at about 165 DEG C.
The preparation method of high-elastic rough type rubber grain compound the most according to claim 1, it is special
Levying and be, the expansion rate of the high-elastic rough type granulated crumb rubber asphalt mixture of gained is less than 0.5%, voidage
Being 3%～4%, elastic return deformability is not less than 6%.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108911588A (en) * | 2018-09-06 | 2018-11-30 | 长安大学 | A kind of antiflaming asphalt mixture and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102432230A (en) * | 2011-09-20 | 2012-05-02 | 武汉理工大学 | Preparation method for deicing, antiskid and denoising asphalt pavement material |
-
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- 2016-01-25 CN CN201610050869.6A patent/CN105837089A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102432230A (en) * | 2011-09-20 | 2012-05-02 | 武汉理工大学 | Preparation method for deicing, antiskid and denoising asphalt pavement material |
Non-Patent Citations (1)
| Title |
|---|
| 胡一舟: "抗凝冰橡胶颗粒沥青混合料性能研究", 《中国优秀硕士学位论文全文数据库 工程科技II辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108911588A (en) * | 2018-09-06 | 2018-11-30 | 长安大学 | A kind of antiflaming asphalt mixture and preparation method thereof |
| CN108911588B (en) * | 2018-09-06 | 2020-11-24 | 长安大学 | Flame-retardant asphalt mixture and preparation method thereof |
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