CN100457668C - Rare earth modified cold repaired maintenance material for asphalt pavement, and preparation method - Google Patents
Rare earth modified cold repaired maintenance material for asphalt pavement, and preparation method Download PDFInfo
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- CN100457668C CN100457668C CNB2007100522213A CN200710052221A CN100457668C CN 100457668 C CN100457668 C CN 100457668C CN B2007100522213 A CNB2007100522213 A CN B2007100522213A CN 200710052221 A CN200710052221 A CN 200710052221A CN 100457668 C CN100457668 C CN 100457668C
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Abstract
This invention discloses rare earth-modified cold patching maintainance material for asphalt pavement, and its preparation method. The rare earth-modified cold patching maintainance material is composed of asphalt, rare earth, waste kerosene, grease trash and graded stone chips. The preparation method comprises: drying graded stone chips, mixing with asphalt cold patching mixed solution, and stirring to obtain rare earth-modified cold patching maintainance material. The method has such advantages as high feasibility and easy operation. The rare earth-modified cold patching maintainance material has such advantages as long storage time, good properties, low cost, no pollution, and high economic, environmental and social benefits. The rare earth-modified cold patching maintainance material can be used to repair asphalt pavement in snow and rain.
Description
Technical field
The present invention relates to a kind of rare earth modified cold repaired maintenance material for asphalt pavement, also relate to a kind of this cold-patch preparation methods simultaneously, this kind cold-patch material novel material conveniently is applicable to repairs various road deck.
Background technology
Rare earth is exactly lanthanon-lanthanum in the periodic table of chemical element (La), cerium (Ce), praseodymium (Pr), neodymium (Nd) etc., is typical metallic element, and their metal activity is only second to basic metal and alkali earth metal, and more active than other metallic elements.Rare earth element can form chemically stable oxide compound, halogenide, sulfide, is widely used in oil, chemical industry, controls gold, industry such as electronics.
Along with the fast development of communication, highway maintenance in winter problem is more and more outstanding.Highway maintenance operation annual April November to next year, because of temperature is lower, conventional heat is mixed repairing measure performance difficulty, causes this section road surface in period to produce that big area is loose, the hole groove can not in time be repaired.When running into sleety weather, make surface gathered water constantly infiltrate roadbed, cause roadbed, road surface seriously to be bursted and become muddy when a thaw sets in.Simultaneously, disease also causes vehicle pitching, vibrations, and the shock load that road pavement produces is 1.5～2 times of normal load.Under the shock load effect, the hole groove can cause local highway section big area to be damaged very soon in flakes, influences national defence road work-ing life and vehicle driving safety.This vicious cycle has not only strengthened the maintenance work difficulty, has increased the maintenance cost, and more the transportation to army's defense materials puts to no little inconvenience.The one, pavement disease can not get timely repairing, causes the transportation of national defence material for preparedness against war, and the transportation of especially national defence scientific research, most advanced and sophisticated precision instrument can not get effective guarantee, directly has influence on China's national defense modernization construction and national defense transportation supportability.The 2nd, Damages of Asphalt Road Surface can not get timely repairing, causes the pavement disease continuation to worsen and cause phenomenons such as big area is loose, hole groove, the serious frost boiling of subgrade and pavement, causes the maintenance costs cumulative year after year.According to the maintenance department statistics, account for 41.8% of maintenance total cost at the direct or indirect input of the problems referred to above, had a strong impact on effective running of the annual maintenance fund of maintenance unit, cause maintenance unit to bear bigger funds transfer pressure.The 3rd, traffic safety has been produced great effect.Especially night and sleety weather driving, because of the driver can not fine judgement road use ability and the potential safety hazard that exists of road ahead, cause traffic accidents such as vehicle rollover, vehicle collision to happen occasionally, the people's life and military materials safety has been caused great effect.The 4th, the conventional heat of bituminous pavement is mixed method for repairing and mending and operating technique strength, facility, construction environment is required higher relatively, and raw-material utilization ratio is relatively low, is unfavorable for wartime rush repair.
In order to solve an asphalt pavement conserving difficult problem, it is in time unimpeded to ensure traffic safety, press for and a kind ofly can be used for pavement patching, pollution-free and novel conserving material that it is with low cost at any time, solve national defence highway's this difficult problem of bituminous pavement rapid curing, guarantee that army's goods and materials transport in time unimpeded.
Summary of the invention
The objective of the invention is to be to provide a kind of rare earth modified cold repaired maintenance material for asphalt pavement, this material to have that performance is excellent, cost is low, pollution-free, the rational characteristics of filling a prescription, be with a wide range of applications.
Another object of the present invention has been to provide a kind of preparation method of rare earth modified cold repaired maintenance material for asphalt pavement, have convenient and easy, easy and simple to handle, deposit characteristics such as permanent, that repairing quality is good, performance is excellent, be beneficial to environmental protection, cost is low.Be particularly useful for winter, rainy season asphalt pavement conserving, and the recovery of national defence bituminous pavement when logical of speedily carrying out rescue work etc., economize the main line maintenance project value that is widely used in national defence and state.
China is universally acknowledged rare earth resources big country, and rare earth reserves and output all occupy first place in the world, and has all found the rare earth mineral reserve at 19 provinces, and the mineral great variety of goods, and is cheap, low as the properties-correcting agent cost.
The novel conserving material that the rare earth modified cold repaired material of bituminous pavement is repaired as road surface breakage mainly is to utilize lanthanum in the rare earth, europium, gadolinium element that bituminous material is had good low temperature increasing tougheness, oilness, the effect of dissolving property.Because rare earth atom has the absorption UV-light, reduce the destruction of ultraviolet ray simultaneously, can improve the resistance to deterioration of cold repairing asphalt mixture asphaltene molecule.Rare earth modified cold repaired maintenance material for asphalt pavement mainly is with the abundant rare earth resources of China--it is the cold-patch solvent that mixed solutions such as waste coal oil behind the aircraft engine, grease factory rape oil tankage are cleaned on rare earth and airport, with pitch, building stones mix be prepared into the low temperature sponginess good, with the building stones associativity is strong, compactibility is good cold repairing asphalt mixture.
A kind of rare earth modified cold repaired maintenance material for asphalt pavement, it is made by following mass ratio:
Rare earth cold-patch mixed solution 4.5-6.6%
Building stones after the grating: 93.4-95.5%
Described rare earth cold-patch mixed solution proportioning is:
Pitch: 77.73-85.36%
Rare earth: 2.08-2.52%
Waste coal oil: 9.59-15.45%
Rape oil tankage: 2.89-4.3%
Wherein said building stones are LB-10, LB-13, LB-16, LB-19 (asking for an interview cold-patch mixture gradation table 1);
Wherein said rare earth is lanthanum, europium or gadolinium.
A kind of step for preparing the asphalt pavement cold paving material is as follows:
A, with the building stones drying after the grating, by LB-10, LB-13, LB-16, LB-19 gradating material (seeing table 1 for details);
Cold-patch mixture gradation scope table 1
| 0.6 | 0～15 | 0～15 | 0～15 | 0～15 |
| 0.3 | 0～12 | 0～12 | 0～12 | 0～12 |
| 0.15 | 0～8 | 0～8 | 0～8 | 0～8 |
| 0.075 | 0～5 | 0～5 | 0～5 | 0～5 |
| Suitable thicknesses (cm) | 2.5～3.0 | 3.0～4.0 | 4.0～5.0 | 5.0-8.0 |
B, pitch is heated to 130 ℃-140 ℃;
C, pitch, rare earth, waste coal oil, rape oil tankage are mixed, obtain the asphalt cold repairing mixed solution;
D, with the building stones uniform mixing after asphalt cold repairing mixed solution and the grating, obtain rare earth modified cold repaired maintenance material for asphalt pavement after 3-5 minute.
This material sponginess is good, with wet feed can fine the combination, lower temperature resistance is strong, adhesivity is strong, compactibility is good, intensity is high, stable performance, and material both can transport on-the-spot the use immediately to, use after also can producing packed storage by batch and treating.Can store 15 days under the normal temperature state-30 days.In use, even do not use rolling apparatus, also can be closely knit gradually by traffic bound.The present invention compared with prior art has the following advantages and effect:
1, this cold-patch material is compared with domestic other cold-patch materials, main resource--the rare earth (lanthanum, europium, gadolinium) of developing, preferably having adopted China's abundant, make properties-correcting agent with rare earth, with the waste coal oil behind the airport cleaning aircraft engine is solvent, with grease factory rape oil tankage is stablizer, with road bitumen, building stones mix be prepared into the low temperature sponginess good, with the building stones associativity is strong, compactibility is good asphalt pavement cold paving compound.
2, this material can store 15 days-30 days at normal temperatures, but therefore batch production is produced in batches, and packed storage, but ready access upon use are particularly suitable for national defence highway's rush repair, have independently intellecture property, can avoid being subjected to external restriction, guarantee national defense safety.This material has good mechanical performance (seeing table 3, table 4 for details) and physicals (seeing table 2 for details)
Physicals table 2
| Project | Unit | Index |
| The building stones crush values | ％ | ＜30 |
| Los Angeles abrasion loss | ％ | ＜20 |
| The elongated flat granule content | ％ | ＜20 |
| WATER-WASHING METHOD＜0.075mm granule content | ％ | ＜2 |
| Soft rock content | ％ | ＜5 |
| The building stones plane of disruption | ％ | ＞90 |
Cold burden stable molding degree test-results table 3
Cold burden incipient stability degree test-results table 4
3, this material construction is simple, need not heat during use, has avoided the pollution to environment.Require also fairly simple to construction environment, routine is vulcanized at low temperature season and rainy season and can not be constructed, the then annual weatherproof of cold-patch (all can use) in temperature more than-20 ℃, and repair and to finish and can be open to traffic, be particularly suitable for wartime or assault in emergency circumstances repairing.
4, this project is lower to construction technical staff and construction equipment requirement, does not need big machinery, and operation is simple, can effectively stop traffic safety hidden danger.
But 5, cold-patch material ready access upon use, surplus material can continue to use next time, and material use efficiency reaches 100%, and comprehensive cost is vulcanized bituminous material relatively can save 17% (seeing Table 5), can effectively operate existing maintenance fund, within national defence Road maintenance unit tolerance range.
The cold-patch material with vulcanize the economic comparison sheet of material table 5
| Project | Unit | Routine is vulcanized mode | Rare earth cold-patch mode | Remarks |
| Materials cost | Unit/m 2 | 21.00 | 21.84 |
| The operation labour cost | Unit/m 2 | 2.86 | 1.33 | Routine is vulcanized and is repaired hole groove 14m per work day 2, cold-repairing material repairing hole on per work day groove 30m 2 |
| Utilize energy cost again | Unit/m 2 | 0.26 | 0 | Calculate by 5% surplus material recycling heating |
| Disease diffusion increase expense | Unit/m 2 | 3.82 | 0 | Calculate by disease area diffusivity 16% |
| Add up to | Unit/m 2 | 27.94 | 23.17 | Cold-repairing material is than low 4.77 yuan of conventional hot-patch material repairing method. |
6, rare earth cold-patch material with vulcanize performance of asphalt mixture and characteristics contrasts (seeing table 6 for details).
Rare earth cold-patch material with vulcanize performance of asphalt mixture and characteristics contrast table 6
| The rare earth cold-patch | Vulcanize | |
| Construction seasons | Annual weatherproof | Cryogenic season and rainy season can not construct |
| Processing to the hole groove | Only need directly to fill up after the simple process | Clean out, drain the water away and dry, the brush sticking layer oil |
| Deposit | Outdoor storage 15 days-30 days, packed deposit more of a specified duration | Can not deposit |
| Workability | Fine, do not need skillfully manually, do not need special machinery | Need skilled labor and big machinery |
| Construction environment | Plant produced, packed depositing, operation field need not heat | Operation field need heat and mixes and stirs, and contains benzene volatile matter contaminate environment |
| Material use efficiency | 100% (ready access upon use, surplus material can continue to use next time) | Less repairing work is got the material amount more than the materials amount, and surplus material cancels |
| Open to traffic | Repairing finishes, and is open to traffic immediately | Repairing finishes, and needs close traffic for some time |
| Weather resistance | Better | Generally |
| The consumption of resource | The pitch Heating temperature requires low, only needs 130 ℃-140 ℃, relatively save energy. | Pitch need heat 150 ℃-160 ℃, and energy consumption is big. |
| Social benefit | At any time repair, keep evenness of road surface, The coast is clear, reduce traffic accident, reduce and repair number of times, prolong road work-ing life, improve serviceability rate | Can not repair at any time, the aggravation that causes damage influences traffic safety, reduces road work-ing life |
| The consumption of material, expense | Reduce the shut-down of winter and rainy season and cause cost consumption, reduce and repeat to repair, economical with materials, artificial work efficiency improves two times. | Repairing quality is bad, and cause and repeat to repair, waste material and artificial, can only mend 14m every day 2Insulation needs to get material more, causes waste |
Embodiment
Embodiment 1:
A kind of rare earth modified cold repaired maintenance material for asphalt pavement, it is made by following mass ratio:
Rare earth cold-patch mixed solution: 6.2%
Building stones after the grating: 93.8%
The proportioning of described rare earth cold-patch mixed solution is:
Pitch: 80.1%
Rare earth: 2.2%
Waste coal oil: 14.1%
Rape oil tankage: 3.6%
A kind of preparation method of rare earth modified cold repaired maintenance material for asphalt pavement is as follows:
A, building stones are screened to adapt to the service requirements of different thickness of bituminous surface by LB-10, LB-13, LB-16, LB-19 grating, building stones will keep dry.The cold repairing asphalt mixture grading limit sees Table 1
B, road bitumen is heated to 130 ℃ or 133 ℃ or 136 ℃ or 138 ℃ or 140 ℃.
C, pitch, rare earth, waste coal oil, grease factory rape oil tankage are mixed be mixed with the asphalt cold repairing mixed solution.
D, get asphalt cold repairing mixed solution 4.5% 4.8% or 5% 5.4% or 5.7% 5.9% or 6.2% 6.4% or 6.6% and building stones 95.5% or 95.2%, 95% or 94.8% or 94.6% or 94.3% or 94.1% or 93.8% or 93.6% mix of level after preparing even, just obtain rare earth cold-patch material after 3-5 minute, get final product to store in the storage bag and used.
The construction technology of rare earth cold-patch material is as follows:
(1) before the construction, should assort conventional required some small-sized machines and the instrument of hole groove of repairing, as spade, iron pick, broom etc.Compacting equipment determines whether to use according to actual needs.
When (2) constructing, safety notice is set earlier, begins operation behind the delimitation boundary of works area.With hole, the side of scraping out, hole, and clean out, will get rid of when ponding is arranged, fill out cold material (slightly exceeding road surface 1mm-2mm) then, spill the drystone bits, compacting gets final product.
(3) during compacting, if repair on high grade highway pavement, small-sized compacting equipment is used in suggestion, to improve its planeness.Ordinary Rd is repaired can adopt the compacting of traffic bound method.
The cold-patch material must have good sponginess and compactibility, and both are contradiction but also unified not only, and this is the difficult point of cold-patch material preparation, and the exploitation cold-patch solvent that preferred properties is excellent, cost is low, key and the difficult point that stablizer is compounding process.The intensity of cold repairing asphalt mixture is formed with 3 aspect factors:
1, adopts rational proportioning, make the consumption of the grating of mineral aggregate and pitch, rare earth addition all reach optimum value, thereby make asphalt not only have initial sponginess, low-temperature working but also have suitable cohesion and inner frictional resistance;
2, after paving, along with the volatilization of additive, it is more and more thicker that pitch becomes, and the cohesion between asphalt improves thereupon;
3, along with the carrying out of rolling, to arrange between the mineral aggregate particle more closely in order, its inner frictional resistance increases gradually, and the initial low temperature sponginess and the later strength of cold repairing asphalt mixture form therefrom.
Used proof by repetition test research and the maintenance since 3 years, the pavement performance of rare earth asphalt cold repairing material can reach tradition and vulcanize the bituminous requirement, simultaneously can remedy the shortcoming of vulcanizing construction again, can in the pit repairing work of routine servicing, substitute and vulcanize pitch, especially solve a winter construction difficult problem and sleety weather pavement disease and repair problem, be fit to national defence highway's rush repair, guarantee national defence material for preparedness against war transportation in time and unimpeded important meaning arranged, economic benefit, social benefit, national defence eonomic effectiveness are remarkable simultaneously.
Embodiment 2
A kind of rare earth modified cold repaired maintenance material for asphalt pavement, it is made by following raw materials quality ratio:
Rare earth cold-patch mixed solution: 6.6%
Building stones after the grating: 93.4%.
Described rare earth cold-patch mixed solution proportioning is:
Pitch: 83%
Rare earth: 2.3%
Waste coal oil: 10.6%
Rape oil tankage: 4.1%
Preparation process is identical with embodiment 1.
Embodiment 3
A kind of rare earth modified cold repaired maintenance material for asphalt pavement, its following raw materials quality ratio is made:
Rare earth cold-patch mixed solution: 5.6%
Building stones after the grating: 94.4%.
Described rare earth cold-patch mixed solution proportioning is:
Pitch: 79.8%
Rare earth: 2.4%
Waste coal oil: 13.9%
Rape oil tankage: 3.9%
Preparation process is identical with embodiment 1.
Embodiment 4
A kind of rare earth modified cold repaired maintenance material for asphalt pavement, it is made by following raw materials quality ratio:
Rare earth cold-patch mixed solution: 5.8%
Building stones after the grating: 94.2%.
Described rare earth cold-patch mixed solution proportioning is:
Pitch: 84.4%
Rare earth: 2.46%
Waste coal oil: 9.6%
Rape oil tankage: 3.54%
Preparation process is identical with embodiment 1.
Embodiment 5
A kind of rare earth modified cold repaired maintenance material for asphalt pavement, it is made by following raw materials quality ratio:
Rare earth cold-patch mixed solution: 4.8%
Building stones after the grating: 95.2%.
Described rare earth cold-patch mixed solution proportioning is:
Pitch: 83.1%
Rare earth: 2.4%
Waste coal oil: 10.6%
Rape oil tankage: 3.9%
Preparation process is identical with embodiment 1.
Embodiment 6
A kind of rare earth modified cold repaired maintenance material for asphalt pavement, it is made by following raw materials quality ratio:
Rare earth cold-patch mixed solution: 5.33%
Building stones after the grating: 94.67%.
Described rare earth cold-patch mixed solution proportioning is:
Pitch: 81.7%
Rare earth: 2.3%
Waste coal oil: 12.2%
Rape oil tankage: 3.8%
Preparation process is identical with embodiment 1.
Embodiment 7
A kind of rare earth modified cold repaired maintenance material for asphalt pavement, it is made by following raw materials quality ratio:
Rare earth cold-patch mixed solution: 5.842%
Building stones after the grating: 94.158%.
Described rare earth cold-patch mixed solution proportioning is:
Pitch: 81.4%
Rare earth: 2.2%
Waste coal oil: 12.1%
Rape oil tankage: 4.3%
Preparation process is identical with embodiment 1.
Embodiment 8
A kind of rare earth modified cold repaired maintenance material for asphalt pavement, it is made by following raw materials quality ratio:
Rare earth cold-patch mixed solution: 4.95%
Building stones after the grating: 95.05%.
Described rare earth cold-patch mixed solution proportioning is:
Pitch: 81%
Rare earth: 2.5%
Waste coal oil: 13.6%
Rape oil tankage: 2.9%
Preparation process is identical with embodiment 1.
Embodiment 9
A kind of rare earth modified cold repaired maintenance material for asphalt pavement, it is made by following raw materials quality ratio:
Rare earth cold-patch mixed solution: 6.153%
Building stones after the grating: 93.847%.
Described rare earth cold-patch mixed solution proportioning is:
Pitch: 82%
Rare earth: 2.4%
Waste coal oil: 12.5%
Rape oil tankage: 3.1%
Preparation process is identical with embodiment 1.
Embodiment 10
A kind of rare earth modified cold repaired maintenance material for asphalt pavement, it is made by following raw materials quality ratio:
Rare earth cold-patch mixed solution: 5.906%
Building stones after the grating: 94.094%.
Described rare earth cold-patch mixed solution proportioning is:
Pitch: 83%
Rare earth: 2.1%
Waste coal oil: 11.1%
Rape oil tankage: 3.8%
Preparation process is identical with embodiment 1.
Embodiment 11
A kind of rare earth modified cold repaired maintenance material for asphalt pavement, it is made by following raw materials quality ratio:
Rare earth cold-patch mixed solution: 5.838%
Building stones after the grating: 94.462%.
Described rare earth cold-patch mixed solution proportioning is:
Pitch: 81.5%
Rare earth: 2.3%
Waste coal oil: 12.5%
Rape oil tankage: 3.7%
Preparation process is identical with embodiment 1.
Embodiment 12
A kind of rare earth modified cold repaired maintenance material for asphalt pavement, it is made by following raw materials quality ratio:
Rare earth cold-patch mixed solution: 5.416%
Building stones after the grating: 94.584%.
Described rare earth cold-patch mixed solution proportioning is:
Pitch: 81.2%
Rare earth: 2.1%
Waste coal oil: 13.3%
Rape oil tankage: 3.4%
Preparation process is identical with embodiment 1.
Embodiment 13
A kind of rare earth modified cold repaired maintenance material for asphalt pavement, it is made by following raw materials quality ratio:
Rare earth cold-patch mixed solution: 4.5%
Building stones after the grating: 95.5%.
Described rare earth cold-patch mixed solution proportioning is:
Pitch: 81.2%
Rare earth: 2.2%
Waste coal oil: 13.5%
Rape oil tankage: 3.1%
Preparation process is identical with embodiment 1.
A kind of rare earth modified cold repaired maintenance material for asphalt pavement service condition is as follows: rare earth cold-patch material behaviour in service record sees Table 8.Using proof sees Appendix.
Rare earth cold-patch material behaviour in service summary sheet 8
| Organization | The positive maintenance of jade company | Dongyang maintenance company | Maintenance station, Cao Bu lake | Chaste tree is when the maintenance station |
| Tonnage (t) | 706 | 105 | 20 | 61 |
Claims (10)
1, a kind of rare earth modified cold repaired maintenance material for asphalt pavement is characterized in that this material is to be made by following raw materials quality per-cent:
Rare earth cold-patch mixed solution 4.5-6.6%
Building stones after the grating: 93.4-95.5%
Described rare earth cold-patch mixed solution proportioning is:
Pitch: 77.73-85.36%
Rare earth: 2.08-2.52%
Waste coal oil: 9.59-15.45%
Rape oil tankage: 2.89-4.3%
Described rare earth is lanthanum, europium or gadolinium.
2, a kind of rare earth modified cold repaired maintenance material for asphalt pavement according to claim 1 is characterized in that this material is to be made by following raw materials quality per-cent:
Rare earth cold-patch mixed solution: 6.6%
Building stones after the grating: 93.4%
Described rare earth cold-patch mixed solution proportioning is:
Pitch: 83%
Rare earth: 2.3%
Waste coal oil: 10.6%
Rape oil tankage: 4.1%.
3, a kind of rare earth modified cold repaired maintenance material for asphalt pavement according to claim 1 is characterized in that this material is to be made by following raw materials quality per-cent:
Rare earth cold-patch mixed solution: 5.6%
Building stones after the grating: 94.4%
Described rare earth cold-patch mixed solution proportioning is:
Pitch: 79.8%
Rare earth: 2.4%
Waste coal oil: 13.9%
Rape oil tankage: 3.9%.
4, a kind of rare earth modified cold repaired maintenance material for asphalt pavement according to claim 1 is characterized in that this material is to be made by following raw materials quality per-cent:
Rare earth cold-patch mixed solution: 5.8%
Building stones after the grating: 94.2%
Described rare earth cold-patch mixed solution proportioning is:
Pitch: 84.4%
Rare earth: 2.46%
Waste coal oil: 9.60%
Rape oil tankage: 3.54%.
5, a kind of rare earth modified cold repaired maintenance material for asphalt pavement according to claim 1 is characterized in that this material is to be made by following raw materials quality per-cent:
Rare earth cold-patch mixed solution: 4.8%
Building stones after the grating: 95.2%
Described rare earth cold-patch mixed solution proportioning is:
Pitch: 83.1%
Rare earth: 2.4%
Waste coal oil: 10.6%
Rape oil tankage: 3.9%.
6, a kind of rare earth modified cold repaired maintenance material for asphalt pavement according to claim 1 is characterized in that this material is to be made by following raw materials quality per-cent:
Rare earth cold-patch mixed solution: 5.33%
Building stones after the grating: 94.67%
Described rare earth cold-patch mixed solution proportioning is:
Pitch: 81.7%
Rare earth: 2.3%
Waste coal oil: 12.2%
Rape oil tankage: 3.8%.
7, a kind of rare earth modified cold repaired maintenance material for asphalt pavement according to claim 1 is characterized in that this material is to be made by following raw materials quality per-cent:
Rare earth cold-patch mixed solution: 5.842%
Building stones after the grating: 94.158%
Described rare earth cold-patch mixed solution proportioning is:
Pitch: 81.4%
Rare earth: 2.2%
Waste coal oil: 12.1%
Rape oil tankage: 4.3%.
8, a kind of rare earth modified cold repaired maintenance material for asphalt pavement according to claim 1 is characterized in that this material is to be made by following raw materials quality per-cent:
Rare earth cold-patch mixed solution: 4.95%
Building stones after the grating: 95.05%
Described rare earth cold-patch mixed solution proportioning is:
Pitch: 81%
Rare earth: 2.5%
Waste coal oil: 13.6%
Rape oil tankage: 2.9%.
9, a kind of rare earth modified cold repaired maintenance material for asphalt pavement according to claim 1 is characterized in that this material is to be made by following raw materials quality per-cent:
Rare earth cold-patch mixed solution: 6.153%
Building stones after the grating: 93.847%
Described rare earth cold-patch mixed solution proportioning is:
Pitch: 82%
Rare earth: 2.4%
Waste coal oil: 12.5%
Rape oil tankage: 3.1%.
10, a kind of preparation method who realizes the described a kind of rare earth modified cold repaired maintenance material for asphalt pavement of claim 1 the steps include:
A, press LB-10, LB-13, LB-16, LB-19 grating building stones, with the building stones drying after the grating;
B, the pitch material is heated to 130 ℃-140 ℃;
C, pitch, rare earth, waste coal oil, rape oil tankage are mixed, obtain the asphalt cold repairing mixed solution;
D, with the building stones uniform mixing after asphalt cold repairing mixed solution and the grating, obtain rare earth modified cold repaired maintenance material for asphalt pavement after 3-5 minute.
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| CNB2007100522213A CN100457668C (en) | 2007-05-22 | 2007-05-22 | Rare earth modified cold repaired maintenance material for asphalt pavement, and preparation method |
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| CNB2007100522213A CN100457668C (en) | 2007-05-22 | 2007-05-22 | Rare earth modified cold repaired maintenance material for asphalt pavement, and preparation method |
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| CN100457668C true CN100457668C (en) | 2009-02-04 |
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| CN110003849A (en) * | 2019-04-17 | 2019-07-12 | 许昌金欧特沥青股份有限公司 | One kind is for road in alpine region cold-patch binding material and preparation method thereof |
| CN112662342B (en) * | 2020-12-21 | 2022-09-23 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Modified asphalt interface adhesive and preparation method thereof |
| CN112831190B (en) * | 2021-01-11 | 2022-03-25 | 山东交通学院 | Asphalt with anti-freezing function prepared from salt-storage sludge particles |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1443825A (en) * | 2002-03-12 | 2003-09-24 | 尹中平 | Asphalt pavement crack-filling agent and its preparation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1443825A (en) * | 2002-03-12 | 2003-09-24 | 尹中平 | Asphalt pavement crack-filling agent and its preparation method |
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