CN110790535B - Maintenance method of asphalt road - Google Patents
Maintenance method of asphalt road Download PDFInfo
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- CN110790535B CN110790535B CN201911231711.9A CN201911231711A CN110790535B CN 110790535 B CN110790535 B CN 110790535B CN 201911231711 A CN201911231711 A CN 201911231711A CN 110790535 B CN110790535 B CN 110790535B
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- asphalt
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- 238000012423 maintenance Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000000203 mixture Substances 0.000 claims abstract description 113
- 239000002699 waste material Substances 0.000 claims abstract description 32
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 29
- 239000011707 mineral Substances 0.000 claims abstract description 29
- 239000000843 powder Substances 0.000 claims abstract description 29
- VLBSKIZWQATQRK-UHFFFAOYSA-N 4-dodecylbenzenesulfonyl chloride Chemical compound CCCCCCCCCCCCC1=CC=C(S(Cl)(=O)=O)C=C1 VLBSKIZWQATQRK-UHFFFAOYSA-N 0.000 claims abstract description 23
- JXFQDIBOGWDEEL-UHFFFAOYSA-N n-methyl-1-[1-(thiophen-2-ylmethyl)piperidin-4-yl]methanamine Chemical compound C1CC(CNC)CCN1CC1=CC=CS1 JXFQDIBOGWDEEL-UHFFFAOYSA-N 0.000 claims description 25
- RGEBGDYYHAFODH-DHMAKVBVSA-M sodium;(e,3r,5s)-7-[4-(4-fluorophenyl)-2-[methyl(methylsulfonyl)amino]-6-propan-2-ylpyrimidin-5-yl]-3,5-dihydroxyhept-6-enoate Chemical compound [Na+].CC(C)C1=NC(N(C)S(C)(=O)=O)=NC(C=2C=CC(F)=CC=2)=C1\C=C\[C@@H](O)C[C@@H](O)CC([O-])=O RGEBGDYYHAFODH-DHMAKVBVSA-M 0.000 claims description 17
- NHLHWHRXMZZWGA-UHFFFAOYSA-N 4-pyrrol-1-ylaniline Chemical compound C1=CC(N)=CC=C1N1C=CC=C1 NHLHWHRXMZZWGA-UHFFFAOYSA-N 0.000 claims description 16
- 239000011521 glass Substances 0.000 claims description 15
- NNHYAHOTXLASEA-UHFFFAOYSA-N 1-(dimethoxymethyl)-4-methoxybenzene Chemical compound COC(OC)C1=CC=C(OC)C=C1 NNHYAHOTXLASEA-UHFFFAOYSA-N 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 14
- 235000007119 Ananas comosus Nutrition 0.000 claims description 12
- 239000000835 fiber Substances 0.000 claims description 12
- 239000011324 bead Substances 0.000 claims description 11
- PKTVACSVCCSZFC-UHFFFAOYSA-N C1=CC=CC2=CC3=CC4=CC=CC=C4C=C3C=C12.[Fe] Chemical compound C1=CC=CC2=CC3=CC4=CC=CC=C4C=C3C=C12.[Fe] PKTVACSVCCSZFC-UHFFFAOYSA-N 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 4
- 244000099147 Ananas comosus Species 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 14
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- QMNZKQNORMSYTJ-UHFFFAOYSA-N [Fe].C1=CC=CC2=CC=CC=C21 Chemical compound [Fe].C1=CC=CC2=CC=CC=C21 QMNZKQNORMSYTJ-UHFFFAOYSA-N 0.000 abstract description 3
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 abstract 2
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 239000012615 aggregate Substances 0.000 description 51
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 30
- 229910052742 iron Inorganic materials 0.000 description 15
- 241000234671 Ananas Species 0.000 description 11
- 230000006835 compression Effects 0.000 description 11
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- HUOACMJUBZGCHI-UHFFFAOYSA-L C(C=C)(=O)[O-].C1=CC=CC2=CC=CC=C12.[Fe+2].C(C=C)(=O)[O-] Chemical compound C(C=C)(=O)[O-].C1=CC=CC2=CC=CC=C12.[Fe+2].C(C=C)(=O)[O-] HUOACMJUBZGCHI-UHFFFAOYSA-L 0.000 description 2
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- 238000010998 test method Methods 0.000 description 2
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- NBINSWOYIKLKGL-UHFFFAOYSA-N 2-dodecylbenzenesulfonyl chloride Chemical compound CCCCCCCCCCCCC1=CC=CC=C1S(Cl)(=O)=O NBINSWOYIKLKGL-UHFFFAOYSA-N 0.000 description 1
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- 229910052756 noble gas Inorganic materials 0.000 description 1
- 238000009700 powder processing Methods 0.000 description 1
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Images
Classifications
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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
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/16—Waste materials; Refuse from building or ceramic industry
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
- E01C7/187—Repairing bituminous covers, e.g. regeneration of the covering material in situ, application of a new bituminous topping
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant materials
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Architecture (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Structures (AREA)
Abstract
本发明涉及市政施工领域，针对容易造成资源浪费和环境污染的问题，提供了一种沥青道路的维修方法，包括以下步骤：S1、破碎道路；S2、制备沥青混合料；S3、铺设路面；其中，沥青混合料包括以下质量份数的组分：沥青10‑12份；废旧沥青混合料65‑70份；集料75‑80份；矿粉8‑10份；N‑甲基‑1‑[1‑（2‑噻吩基甲基）‑4‑哌啶基]甲胺0.05‑0.1份；萘烯酸铁1‑2份；对十二烷基苯磺酰氯3‑5份。通过将破碎沥青路面层中的废旧沥青混合料重新混入新沥青混合料的各组分中，形成新沥青混合料并用于重新铺设路面，有利于提高废旧沥青混合料的利用率，还有利于减少废旧沥青混合料对环境造成污染，有利于节能环保。
The invention relates to the field of municipal construction, and provides a maintenance method for an asphalt road in view of the problems of easy waste of resources and environmental pollution, comprising the following steps: S1, breaking the road; S2, preparing an asphalt mixture; S3, laying the road surface; wherein , the asphalt mixture includes the following components by mass: 10-12 parts of asphalt; 65-70 parts of waste asphalt mixture; 75-80 parts of aggregate; 8-10 parts of mineral powder; N-methyl-1-[ 0.05-0.1 part of 1-(2-thienylmethyl)-4-piperidinyl] methylamine; 1-2 parts of iron naphthalene; 3-5 parts of p-dodecylbenzenesulfonyl chloride. By remixing the waste asphalt mixture in the broken asphalt pavement layer into each component of the new asphalt mixture, a new asphalt mixture is formed and used for re-paving the road, which is beneficial to improve the utilization rate of the waste asphalt mixture and reduce the Waste asphalt mixture pollutes the environment, which is conducive to energy conservation and environmental protection.
Description
Technical Field
The invention relates to the field of municipal construction, in particular to a maintenance method of an asphalt road.
Background
Asphalt roads refer to various types of roads made by incorporating into mineral materials a road pavement of asphalt material. The asphalt binder improves the ability of the paving material to resist damage from driving and natural factors to the pavement, and makes the pavement smooth, dustless, waterproof and durable, so that the asphalt road is a high-grade pavement which is most widely used in road construction.
However, under the repeated action of wheel load and the action of diesel oil and engine oil leaked by vehicles, asphalt and aggregate are easily peeled and loosened, so that pits are easily formed on the asphalt pavement; in addition, the asphalt road is also susceptible to wind, sun, rain, cold and cold, so that cracks are easily formed on the asphalt road, and therefore, the asphalt road is generally required to be maintained in order to ensure normal use of the asphalt road.
The existing asphalt road maintenance usually comprises the steps of crushing the original asphalt pavement layer, removing the waste crushed asphalt mixture, and paving a new asphalt mixture on the roadbed to form a new asphalt road. However, the method for repairing the asphalt road easily generates a large amount of waste asphalt mixture, easily causes influence on the environment, and simultaneously causes resource waste, so that the method still has room for improvement.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a maintenance method of an asphalt road, which has the advantage of recycling waste asphalt mixture.
In order to achieve the purpose, the invention provides the following technical scheme:
a maintenance method of an asphalt road comprises the following steps:
s1, crushing the road: crushing the damaged asphalt pavement layer;
s2, preparing an asphalt mixture: cleaning the crushed asphalt out of the road, and uniformly mixing the waste asphalt mixture in the crushed asphalt pavement layer with the components of the asphalt mixture to obtain an asphalt mixture;
s3, paving the pavement: re-paving the asphalt mixture prepared in the step S2 on the road and compacting to form an asphalt pavement layer, namely completing the maintenance of the asphalt road;
the asphalt mixture comprises the following components in parts by mass:
10-12 parts of asphalt;
65-70 parts of waste asphalt mixture;
75-80 parts of aggregate;
8-10 parts of mineral powder;
0.05-0.1 part of N-methyl-1- [1- (2-thienylmethyl) -4-piperidyl ] methylamine;
1-2 parts of iron naphthacene;
3-5 parts of p-dodecyl benzene sulfonyl chloride.
By adopting the technical scheme, the waste asphalt materials in the broken asphalt pavement layer are mixed into the components of the new asphalt mixture again to form the new asphalt mixture and used for paving the pavement again, so that the utilization rate of the waste asphalt mixture is improved, and meanwhile, the pollution of the waste asphalt mixture to the environment is reduced, and the energy conservation and environmental protection are facilitated.
By adopting the mutual cooperative matching of the N-methyl-1- [1- (2-thienylmethyl) -4-piperidyl ] methylamine, the iron naphthaline acrylate and the p-dodecylbenzene sulfonyl chloride, the method is favorable for better separating the waste asphalt from the waste aggregate in the waste asphalt mixture, and simultaneously is favorable for improving the compatibility of the new asphalt with the waste asphalt, the waste aggregate and the new aggregate, so that the bonding force of the new asphalt and the new and old aggregates is enhanced, the new and old aggregates are favorably and uniformly dispersed in the asphalt mixture, the compression strength, the high-temperature stability and the low-temperature crack resistance of the asphalt mixture are better, the compression strength, the high-temperature stability and the low-temperature crack resistance of the asphalt road obtained by construction are better, the service life of the asphalt road is favorably prolonged, and the later maintenance cost of the asphalt road is reduced, is beneficial to improving the economic benefit.
The invention is further configured to: the aggregate is basalt with the grain size not greater than 25 mm.
By adopting the technical scheme, the basalt is used as the aggregate, and is hard, so that the compressive strength, the high-temperature stability and the low-temperature crack resistance of the asphalt mixture are favorably improved, and the compressive strength, the high-temperature stability and the low-temperature crack resistance of the asphalt road obtained by construction are better.
The invention is further configured to: the aggregate is formed by uniformly mixing basalt with the grain diameter of 1-5mm, basalt with the grain diameter of 5-16mm and basalt with the grain diameter of 16-25 mm.
By adopting the technical scheme, the aggregates are formed by uniformly mixing the basalt with different particle sizes, so that the aggregates in the asphalt mixture are favorably and better densely accumulated, the compactness in the asphalt mixture is improved, the compression strength, the high-temperature stability and the low-temperature crack resistance of the asphalt mixture are favorably improved, the compression strength, the high-temperature stability and the low-temperature crack resistance of the constructed asphalt road are better, the service life of the asphalt road is favorably prolonged, and the later maintenance cost of the asphalt road is favorably reduced.
The invention is further configured to: the aggregate is prepared from the following components in parts by weight: 3: 4, the basalt with the grain diameter of 1-5mm, the basalt with the grain diameter of 5-16mm and the basalt with the grain diameter of 16-25mm are evenly mixed.
By adopting the technical scheme, the aggregate in the asphalt mixture is favorably and better densely accumulated by controlling the dosage proportion of the basalt with different grain diameters in the asphalt mixture, so that the compactness of the asphalt mixture is higher, the compression strength, the high-temperature stability and the low-temperature crack resistance of the asphalt mixture are favorably improved, the compression strength, the high-temperature stability and the low-temperature crack resistance of the constructed asphalt road are better, the service life of the constructed asphalt road is favorably prolonged, and the later maintenance cost of the asphalt road is reduced.
The invention is further configured to: the particle size of the mineral powder is 1-3 mm.
By adopting the technical scheme, the mineral powder can be better matched with basalt with different particle sizes by controlling the particle size of the mineral powder, the mineral powder can be better filled in pores in the asphalt mixture, the compactness of the asphalt mixture is higher, the compressive strength, the high-temperature stability and the low-temperature crack resistance of the asphalt mixture can be better enhanced, the compressive strength, the high-temperature stability and the low-temperature crack resistance of the constructed asphalt road are better, the service life of the asphalt road can be better prolonged, and the later maintenance cost of the asphalt road is reduced.
The invention is further configured to: the asphalt mixture also comprises the following components in parts by mass:
1-1.5 parts of rosuvastatin sodium.
By adopting the technical scheme, through adding rosuvastatin sodium, the synergistic cooperation of N-methyl-1- [1- (2-thienylmethyl) -4-piperidyl ] methylamine, iron naphthaline and p-dodecylbenzene sulfonyl chloride is favorably promoted, so that the bonding force of new asphalt and new and old aggregates is favorably enhanced, the new and old aggregates are more easily and uniformly dispersed in an asphalt mixture, the compression strength, the high-temperature stability and the low-temperature crack resistance of the asphalt mixture are favorably improved, the compression strength, the high-temperature stability and the low-temperature crack resistance of an asphalt road obtained by construction are higher, the service life of the asphalt road is favorably prolonged, and the later maintenance cost of the asphalt road is reduced.
The invention is further configured to: the asphalt mixture also comprises the following components in parts by mass:
0.01-0.03 portion of 4-pyrrole-1-yl-aniline.
By adopting the technical scheme, 4-pyrrole-1-yl-aniline and rosuvastatin sodium are added to be matched with each other in a synergistic manner, so that the synergistic cooperation of N-methyl-1- [1- (2-thienylmethyl) -4-piperidyl ] methylamine, iron naphthacene and p-dodecylbenzene sulfonyl chloride is favorably promoted, the bonding force of asphalt and old and new aggregates is favorably improved, the density of the asphalt mixture is more uniform and the compactness is higher, the compressive strength, the high-temperature stability and the low-temperature crack resistance of the asphalt mixture are favorably improved, the compressive strength, the high-temperature stability and the low-temperature crack resistance of the asphalt road obtained by construction are better, the driving requirement of the asphalt road is favorably met, and the service life of the asphalt road is prolonged, the maintenance cost of the asphalt road in the later period is reduced, and the economic benefit is improved.
The invention is further configured to: the asphalt mixture also comprises the following components in parts by mass:
0.1-0.3 part of 4-methoxybenzaldehyde dimethyl acetal.
By adopting the technical scheme, the 4-methoxybenzaldehyde dimethylacetal is added, so that the compatibility of new asphalt and new and old aggregates is favorably and better improved, the new asphalt is more easily and firmly bonded with the new and old aggregates, the new and old aggregates are favorably and more uniformly dispersed in the asphalt mixture, the new and old aggregates are favorably and better densely piled, the compactness of the asphalt mixture is favorably improved, the compressive strength, the high-temperature stability and the low-temperature crack resistance of the asphalt mixture are better, the compressive strength, the high-temperature stability and the low-temperature crack resistance of an asphalt road are favorably and better improved, the breakage phenomenon of the asphalt road is more difficultly caused, and the later maintenance cost of the asphalt road is favorably reduced.
Meanwhile, the 4-methoxybenzaldehyde dimethyl acetal is also beneficial to inhibiting the unpleasant smell emitted by the asphalt mixture, thereby being beneficial to reducing the influence of the smell emitted by the asphalt mixture in the mixing and construction processes on the health of constructors.
The invention is further configured to: the asphalt mixture also comprises the following components in parts by mass:
1-2 parts of hollow glass beads.
Adopt above-mentioned technical scheme, through adding hollow glass microballon, hollow glass microballon has high intensity, thereby be favorable to improving bituminous mixture's compressive strength better, and simultaneously, hollow glass microballon has certain mobility, and hollow glass microballon's inside is noble gas, thereby be favorable to buffering bituminous mixture's temperature variation, make bituminous mixture be difficult to the fracture when receiving shock cooling or suddenly hot, thereby be favorable to improving bituminous mixture's high temperature stability and low temperature crack resistance better, make the bituminous road of construction gained be difficult to appear the condition of fracture or breakage in the use in later stage more, be favorable to reducing bituminous road's later maintenance cost.
The invention is further configured to: the asphalt mixture also comprises the following components in parts by mass:
0.5-1 part of pineapple leaf fiber.
By adopting the technical scheme, the pineapple leaf fibers are added, so that the toughness of the asphalt mixture is favorably enhanced, the asphalt mixture is more difficult to crack, the compressive strength, the high-temperature stability and the low-temperature crack resistance of the asphalt mixture are favorably improved, the asphalt road obtained by construction is more difficult to crack under severe conditions, the later maintenance cost of the asphalt road is favorably reduced, and the economic benefit is higher.
In conclusion, the invention has the following beneficial effects:
1. the waste asphalt material in the broken asphalt pavement layer is mixed into each component of the new asphalt mixture again to form the new asphalt mixture and the new asphalt mixture is used for paving the pavement again, so that the utilization rate of the waste asphalt mixture is improved, the pollution of the waste asphalt mixture to the environment is reduced, and the energy conservation and environmental protection are facilitated;
2. by adopting the mutual synergistic cooperation of the N-methyl-1- [1- (2-thienylmethyl) -4-piperidyl ] methylamine, the iron naphthaline acrylate and the p-dodecylbenzene sulfonyl chloride, the new and old aggregates are favorably and uniformly dispersed in the asphalt mixture, so that the compressive strength, the high-temperature stability and the low-temperature crack resistance of the asphalt mixture are better, the compressive strength, the high-temperature stability and the low-temperature crack resistance of the asphalt road obtained by construction are better, the service life of the asphalt road is favorably prolonged, the later maintenance cost of the asphalt road is reduced, and the economic benefit is favorably improved;
3. by controlling the particle sizes of the aggregates and the mineral powder in the asphalt mixture and the dosage proportion of the aggregates with different particle sizes, the aggregates and the mineral powder in the asphalt mixture are more densely accumulated, the compactness of the asphalt mixture is higher, the compression strength, the high-temperature stability and the low-temperature crack resistance of the asphalt mixture are better improved, and the asphalt road obtained by construction is less prone to cracking in the later use process.
Drawings
FIG. 1 is a process flow diagram of the repair method of asphalt road according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples.
In the following examples, the asphalt was 70# asphalt from Credit chemical Co., Ltd, of Foshan.
In the following examples, basalt from Zhangpu county Hongshen Stone Co., Ltd was used as the aggregate.
In the following examples, limestone ore powder with a goods number wz-01 of a bright refractory warp member in a Gune City district is used as the ore powder.
In the following examples, N-methyl-1- [1- (2-thienylmethyl) -4-piperidinyl ] methylamine was N-methyl-1- [1- (2-thienylmethyl) -4-piperidinyl ] methylamine available from Wuhan Debye technologies, Inc. under the trade name DB-079458.
In the following examples, iron naphthanoate from Langtson Biotech Co.Ltd, Zhongshan was used.
In the following examples, p-dodecylbenzenesulfonyl chloride from Chibei cat Vol biomedical Co., Ltd was used.
In the following examples, rosuvastatin sodium is rosuvastatin sodium available from Siemagaining Biotech Co., Ltd, under the product number 4470.
In the following examples, 4-pyrrol-1-yl-aniline, commercially available from Nanjing Conman chemical industry Co., Ltd, as No. CM4025057, was used as 4-pyrrol-1-yl-aniline.
In the following examples, 4-methoxybenzaldehyde dimethyl acetal having a product number ym-r002 from Yuanmu Biotechnology Co., Ltd in Shanghai was used as the 4-methoxybenzaldehyde dimethyl acetal.
In the following examples, hollow glass beads having a particle size of 100 mesh were selected from those of X-Y-024 produced by mineral powder processing plants from Shishou county, Yongyuan.
In the following examples, pineapple leaf fibers of Chongqing Dongyi grass cloth Co., Ltd are used.
Example 1
A maintenance method of an asphalt road comprises the following steps:
s1, crushing roads, which comprises the following steps:
and the pavement crushing hammer is adopted to crush the damaged asphalt pavement layer.
S2, preparing an asphalt mixture, which comprises the following steps:
and (4) cleaning the crushed waste asphalt mixture out of the road, and cleaning dust on the surface of the road.
Taking out the crushed waste asphalt mixture, and further crushing the waste asphalt mixture into waste asphalt mixture with the particle size of 5-25mm for later use.
Adding 70kg of further crushed waste asphalt mixture into a 200L stirring kettle, raising the temperature to 160 ℃, stirring at the rotating speed of 200r/min, adding 0.05kg of N-methyl-1- [1- (2-thienylmethyl) -4-piperidyl ] methylamine, 1kg of iron naphthacene and 3kg of dodecyl benzene sulfonyl chloride while stirring, and uniformly stirring and mixing to form an intermediate mixture; and adding 10kg of asphalt, 80kg of aggregate and 9kg of mineral powder into the intermediate mixture while stirring, and uniformly stirring and mixing to obtain the asphalt mixture.
S3, paving the pavement, specifically as follows:
and (3) uniformly paving the asphalt mixture prepared in the step (S2) on the road again by adopting a paving machine, and compacting the road surface by adopting a road roller to form an asphalt pavement layer, so that the maintenance of the asphalt road is completed.
The aggregate in the embodiment is basalt with the grain size of 25-30mm, and the grain size of the mineral powder is 0.1-1 mm.
Example 2
The difference from example 1 is that:
step S2 is added with waste asphalt mixture 65kg, N-methyl-1- [1- (2-thienyl methyl) -4-piperidyl ] methylamine 0.07kg, iron naphthanoate 2kg, p-dodecyl benzene sulfonyl chloride 5kg, asphalt 11kg, aggregate 75kg and mineral powder 10 kg.
Example 3
The difference from example 1 is that:
67.5kg of waste asphalt mixture, 0.1kg of N-methyl-1- [1- (2-thienylmethyl) -4-piperidyl ] methylamine, 1.5kg of iron naphthanoate, 4kg of p-dodecylbenzene sulfonyl chloride, 12kg of asphalt, 77.5kg of aggregate and 8kg of mineral powder are added in the step S2.
Example 4
The difference from example 1 is that:
69kg of waste asphalt mixture, 0.08kg of N-methyl-1- [1- (2-thienylmethyl) -4-piperidyl ] methylamine, 1.6kg of iron naphthanoate, 4.5kg of p-dodecylbenzene sulfonyl chloride, 11.5kg of asphalt, 76kg of aggregate and 9.5kg of mineral powder are added in the step S2.
Example 5
The difference from example 4 is that: the aggregate is basalt with the grain size of 20-25 mm.
Example 6
The difference from example 4 is that: the aggregate is prepared from the following components in percentage by mass of 4: 2: 4, basalt with the grain diameter of 1-5mm, basalt with the grain diameter of 5-16mm and basalt with the grain diameter of 16-25mm are evenly mixed.
Example 7
The difference from example 4 is that: the aggregate is prepared from the following components in percentage by mass: 4: 4, basalt with the grain diameter of 1-5mm, basalt with the grain diameter of 5-16mm and basalt with the grain diameter of 16-25mm are evenly mixed.
Example 8
The difference from example 4 is that: the aggregate is prepared from the following components in percentage by mass of 3: 4: 3, the basalt with the grain diameter of 1-5mm, the basalt with the grain diameter of 5-16mm and the basalt with the grain diameter of 16-25mm are evenly mixed.
Example 9
The difference from example 4 is that: the aggregate is prepared from the following components in percentage by mass of 3: 2: 5, basalt with the grain diameter of 1-5mm, basalt with the grain diameter of 5-16mm and basalt with the grain diameter of 16-25mm are evenly mixed.
Example 10
The difference from example 4 is that: the aggregate is prepared from the following components in percentage by mass: 3: 5, basalt with the grain diameter of 1-5mm, basalt with the grain diameter of 5-16mm and basalt with the grain diameter of 16-25mm are evenly mixed.
Example 11
The difference from example 4 is that: the aggregate is prepared from the following components in percentage by mass of 4: 3: 3, the basalt with the grain diameter of 1-5mm, the basalt with the grain diameter of 5-16mm and the basalt with the grain diameter of 16-25mm are evenly mixed.
Example 12
The difference from example 4 is that: the aggregate is prepared from the following components in percentage by mass of 3: 3: 4, basalt with the grain diameter of 1-5mm, basalt with the grain diameter of 5-16mm and basalt with the grain diameter of 16-25mm are evenly mixed.
Example 13
The difference from example 12 is that: the particle size of the mineral powder is 3-5 mm.
Example 14
The difference from example 12 is that: the particle size of the mineral powder is 1-3 mm.
Example 15
The difference from example 14 is that: in step S2, 1kg of rosuvastatin sodium is added while N-methyl-1- [1- (2-thienylmethyl) -4-piperidinyl ] methylamine, iron naphthanoate and p-dodecylbenzenesulfonyl chloride are added.
Example 16
The difference from example 14 is that: in step S2, 1.5kg of rosuvastatin sodium is added while N-methyl-1- [1- (2-thienylmethyl) -4-piperidyl ] methylamine, iron naphthanoate and p-dodecylbenzene sulfonyl chloride are added.
Example 17
The difference from example 14 is that: in step S2, 0.01kg of 4-pyrrol-1-yl-aniline was added to the mixture while adding N-methyl-1- [1- (2-thienylmethyl) -4-piperidinyl ] methylamine, iron naphthanoate, and p-dodecylbenzenesulfonyl chloride.
Example 18
The difference from example 14 is that: in step S2, 0.03kg of 4-pyrrol-1-yl-aniline was added to the mixture while adding N-methyl-1- [1- (2-thienylmethyl) -4-piperidinyl ] methylamine, iron naphthanoate, and p-dodecylbenzenesulfonyl chloride.
Example 19
The difference from example 14 is that: in step S2, while adding N-methyl-1- [1- (2-thienylmethyl) -4-piperidyl ] methylamine, iron naphthanoate, and p-dodecylbenzenesulfonyl chloride, 1kg of rosuvastatin sodium and 0.03kg of 4-pyrrol-1-yl-aniline were added.
Example 20
The difference from example 14 is that: in step S2, 1.5kg of rosuvastatin sodium and 0.01kg of 4-pyrrol-1-yl-aniline are added while N-methyl-1- [1- (2-thienylmethyl) -4-piperidyl ] methylamine, iron naphthanoate and p-dodecylbenzene sulfonyl chloride are added.
Example 21
The difference from example 14 is that: in step S2, 1.3kg of rosuvastatin sodium and 0.02kg of 4-pyrrol-1-yl-aniline are added while N-methyl-1- [1- (2-thienylmethyl) -4-piperidyl ] methylamine, iron naphthanoate and p-dodecylbenzenesulfonyl chloride are added.
Example 22
The difference from example 14 is that: in step S2, 0.1kg of 4-methoxybenzaldehyde dimethyl acetal was added while adding N-methyl-1- [1- (2-thienylmethyl) -4-piperidinyl ] methylamine, iron naphthanoate, and p-dodecylbenzenesulfonyl chloride.
Example 23
The difference from example 14 is that: in step S2, 0.3kg of 4-methoxybenzaldehyde dimethyl acetal was added while adding N-methyl-1- [1- (2-thienylmethyl) -4-piperidinyl ] methylamine, iron naphthanoate, and p-dodecylbenzenesulfonyl chloride.
Example 24
The difference from example 14 is that: in step S2, 1kg of hollow glass beads are added while asphalt, aggregate and mineral powder are added.
Example 25
The difference from example 14 is that: in step S2, 2kg of hollow glass beads are added while asphalt, aggregate and mineral powder are added.
Example 26
The difference from example 14 is that: in step S2, 0.5kg of pineapple leaf fiber is added while asphalt, aggregate and mineral powder are added.
Example 27
The difference from example 14 is that: in step S2, 1kg of pineapple leaf fiber is added while adding asphalt, aggregate and mineral powder.
Example 28
The difference from example 21 is that: in step S2, 0.1kg of 4-methoxybenzaldehyde dimethyl acetal is added while rosuvastatin sodium and 4-pyrrol-1-yl-aniline are added, and 2kg of hollow glass beads and 0.5kg of pineapple leaf fibers are added while asphalt, aggregate and mineral powder are added.
Example 29
The difference from example 21 is that: in step S2, 0.3kg of 4-methoxybenzaldehyde dimethyl acetal is added while rosuvastatin sodium and 4-pyrrol-1-yl-aniline are added, and 1kg of hollow glass beads and 1kg of pineapple leaf fibers are added while asphalt, aggregate and mineral powder are added.
Example 30
The difference from example 21 is that: in step S2, 0.2kg of 4-methoxybenzaldehyde dimethyl acetal is added while rosuvastatin sodium and 4-pyrrol-1-yl-aniline are added, and 1.5kg of hollow glass beads and 0.75kg of pineapple leaf fibers are added while asphalt, aggregate and mineral powder are added.
Example 31
The difference from example 21 is that: in step S2, 0.2kg of 4-methoxybenzaldehyde dimethyl acetal is added while rosuvastatin sodium and 4-pyrrol-1-yl-aniline are added, and 1.8kg of hollow glass beads and 0.6kg of pineapple leaf fibers are added while asphalt, aggregate and mineral powder are added.
Comparative example 1
The difference from example 4 is that: in step S2, N-methyl-1- [1- (2-thienylmethyl) -4-piperidinyl ] methylamine, iron naphthanoate and p-dodecylbenzenesulfonyl chloride were not added.
Comparative example 2
The difference from example 4 is that: in step S2, N-methyl-1- [1- (2-thienylmethyl) -4-piperidinyl ] methylamine was not added.
Comparative example 3
The difference from example 4 is that: in step S2, iron naphthanoate is not added.
Comparative example 4
The difference from example 4 is that: in step S2, p-dodecylbenzenesulfonyl chloride was not added.
Experiment 1
The compressive strength (MPa) of the asphalt pavement layers constructed in the above examples and comparative examples was measured according to ASTM D1074-2017, Standard test method for compressive Strength of asphalt mixture.
Experiment 2
The dynamic stability (sub/mm) of the asphalt pavement layers constructed in the above examples and comparative examples is detected according to T0719-2011 asphalt mixture rut test in JTG E20-2011 < test procedure for road engineering asphalt and asphalt mixture > release manual >; the greater the dynamic stability, the higher the high temperature stability of the road.
Experiment 3
The flexural stiffness modulus (MPa) of the asphalt pavement layers constructed by the above examples and comparative examples is detected according to T0715-2011 asphalt mixture bending test in JTG E20-2011 < test procedure for road engineering asphalt and asphalt mixture > release manual >; the greater the flexural stiffness modulus, the better the low temperature crack resistance of the road.
The data from the above experiments are shown in Table 1.
TABLE 1
According to the data comparison of the embodiments 4 to 12 in the table 1, the aggregate in the asphalt mixture is more densely accumulated by controlling the particle size of the aggregate in the asphalt mixture and controlling the dosage proportion of the basalt with different particle sizes, so that the compactness of the asphalt mixture is higher, the compression strength, the high-temperature stability and the low-temperature crack resistance of the asphalt mixture are better improved, the compression strength, the high-temperature stability and the low-temperature crack resistance of the constructed asphalt road are stronger, the service life of the asphalt road is further prolonged, and the later maintenance cost of the asphalt road is reduced.
According to the comparison of the data of the embodiments 12 to 14 in the table 1, the particle size of the mineral powder is controlled, so that the mineral powder and the basalt can be better matched with each other to fill the pores in the asphalt mixture, the compactness of the asphalt mixture is improved, the compressive strength, the high-temperature stability and the low-temperature crack resistance of the asphalt mixture are better improved, the asphalt road obtained by construction is less prone to cracking in the later use process, and the later maintenance cost of the asphalt road is reduced.
As can be seen from a comparison of the data in examples 14-21 of Table 1, the addition of rosuvastatin sodium alone or 4-pyrrol-1-yl-aniline alone is beneficial to improve the compressive strength, high temperature stability and low temperature crack resistance of the asphalt mixture to some extent; and only when rosuvastatin sodium and 4-pyrrole-1-yl-aniline are cooperatively matched, the compressive strength, high-temperature stability and low-temperature crack resistance of the asphalt mixture can be better improved, so that the compressive strength, high-temperature stability and low-temperature crack resistance of the constructed asphalt road are better, the service life of the asphalt road is further prolonged, the later maintenance cost of the asphalt road is reduced, and the economic benefit is improved.
According to comparison of data of the embodiment 14 and the embodiments 22 to 27 in the table 1, the addition of the 4-methoxybenzaldehyde dimethylacetal, the hollow glass beads or the pineapple leaf fibers is beneficial to improving the compressive strength, the high-temperature stability and the low-temperature crack resistance of the asphalt mixture to a certain extent, so that the compressive strength, the high-temperature stability and the low-temperature crack resistance of the asphalt road are enhanced, the asphalt road is less prone to cracking in the later use period, and the later maintenance cost of the asphalt road is reduced.
According to comparison of data of the embodiment 21 and the embodiments 28 to 31 in table 1, the 4-methoxybenzaldehyde dimethyl acetal, the hollow glass beads and the pineapple leaf fibers are added simultaneously and cooperatively, so that the compressive strength, the high-temperature stability and the low-temperature crack resistance of the asphalt mixture are improved better, the compressive strength, the high-temperature stability and the low-temperature crack resistance of the asphalt road are improved better, the service life of the asphalt road obtained by construction is longer, and the later maintenance cost of the asphalt road is reduced.
According to the comparison of the data of example 4 and comparative examples 1-4 in table 1, only when N-methyl-1- [1- (2-thienylmethyl) -4-piperidyl ] methylamine, iron naphthaline and p-dodecylbenzene sulfonyl chloride are synergistically matched with each other, the compatibility of asphalt and new and old aggregates can be better improved, the bonding force of asphalt and aggregates is stronger, and the compressive strength, high-temperature stability and low-temperature crack resistance of an asphalt mixture are better improved, so that the compressive strength, high-temperature stability and low-temperature crack resistance of an asphalt road are better, the service life of the asphalt road is better prolonged, the later maintenance cost of the asphalt road is reduced, and the economic benefit is better improved.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (10)
1. A maintenance method of an asphalt road is characterized by comprising the following steps: the method comprises the following steps:
s1, crushing the road: crushing the damaged asphalt pavement layer;
s2, preparing an asphalt mixture: cleaning the crushed asphalt out of the road, and uniformly mixing the waste asphalt mixture in the crushed asphalt pavement layer with the rest components of the asphalt mixture to obtain an asphalt mixture;
s3, paving the pavement: re-paving the asphalt mixture prepared in the step S2 on the road and compacting to form an asphalt pavement layer, namely completing the maintenance of the asphalt road;
the asphalt mixture comprises the following components in parts by mass:
10-12 parts of asphalt;
65-70 parts of waste asphalt mixture;
75-80 parts of aggregate;
8-10 parts of mineral powder;
0.05-0.1 part of N-methyl-1- [1- (2-thienylmethyl) -4-piperidyl ] methylamine;
1-2 parts of iron naphthacene;
3-5 parts of p-dodecyl benzene sulfonyl chloride.
2. The method for repairing an asphalt road according to claim 1, wherein: the aggregate is basalt with the grain size not greater than 25 mm.
3. The method for repairing an asphalt road according to claim 2, wherein: the aggregate is formed by uniformly mixing basalt with the grain diameter of 1-5mm, basalt with the grain diameter of 5-16mm and basalt with the grain diameter of 16-25 mm.
4. A method for repairing an asphalt road according to claim 3, wherein: the aggregate is prepared from the following components in parts by weight: 3: 4, the basalt with the grain diameter of 1-5mm, the basalt with the grain diameter of 5-16mm and the basalt with the grain diameter of 16-25mm are evenly mixed.
5. The method for repairing an asphalt road according to claim 4, wherein: the particle size of the mineral powder is 1-3 mm.
6. The method for repairing an asphalt road according to any one of claims 1 to 5, wherein: the asphalt mixture also comprises the following components in parts by mass:
1-1.5 parts of rosuvastatin sodium.
7. The method for repairing an asphalt road according to claim 6, wherein: the asphalt mixture also comprises the following components in parts by mass:
0.01-0.03 portion of 4-pyrrole-1-yl-aniline.
8. The method for repairing an asphalt road according to any one of claims 1 to 5, wherein: the asphalt mixture also comprises the following components in parts by mass:
0.1-0.3 part of 4-methoxybenzaldehyde dimethyl acetal.
9. The method for repairing an asphalt road according to any one of claims 1 to 5, wherein: the asphalt mixture also comprises the following components in parts by mass:
1-2 parts of hollow glass beads.
10. The method for repairing an asphalt road according to any one of claims 1 to 5, wherein: the asphalt mixture also comprises the following components in parts by mass:
0.5-1 part of pineapple leaf fiber.
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| EP2301996A1 (en) * | 2008-03-24 | 2011-03-30 | Obschestvo s ogranichennoy Otvetstvennostju "Unikom" | Modifying composition for asplalt-concrete mixtures |
| CN103113618A (en) * | 2012-12-25 | 2013-05-22 | 江苏博特新材料有限公司 | Method for preparing cold-recycling asphalt emulsification additive |
| CN109267452A (en) * | 2018-09-17 | 2019-01-25 | 湖南鑫长胜材料科技有限公司 | Mixture and its preparation method and application based on road surface reclaimed materials cold renewal |
| CN109704653A (en) * | 2019-03-08 | 2019-05-03 | 广东中煌建筑工程有限公司 | A kind of frost-cracking-preventing road surface |
| CN109721286A (en) * | 2019-01-19 | 2019-05-07 | 江苏盛达飞建筑材料有限公司 | A kind of heat-resisting Recycled Asphalt Pavement and preparation method thereof |
| CN110528349A (en) * | 2019-08-28 | 2019-12-03 | 广东万标建设工程有限公司 | Asphalt roads restorative procedure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP2301996A1 (en) * | 2008-03-24 | 2011-03-30 | Obschestvo s ogranichennoy Otvetstvennostju "Unikom" | Modifying composition for asplalt-concrete mixtures |
| CN103113618A (en) * | 2012-12-25 | 2013-05-22 | 江苏博特新材料有限公司 | Method for preparing cold-recycling asphalt emulsification additive |
| CN109267452A (en) * | 2018-09-17 | 2019-01-25 | 湖南鑫长胜材料科技有限公司 | Mixture and its preparation method and application based on road surface reclaimed materials cold renewal |
| CN109721286A (en) * | 2019-01-19 | 2019-05-07 | 江苏盛达飞建筑材料有限公司 | A kind of heat-resisting Recycled Asphalt Pavement and preparation method thereof |
| CN109704653A (en) * | 2019-03-08 | 2019-05-03 | 广东中煌建筑工程有限公司 | A kind of frost-cracking-preventing road surface |
| CN110528349A (en) * | 2019-08-28 | 2019-12-03 | 广东万标建设工程有限公司 | Asphalt roads restorative procedure |
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