CN116986849B - High-strength high-wear-resistance asphalt concrete and preparation method and application thereof - Google Patents
High-strength high-wear-resistance asphalt concrete and preparation method and application thereof Download PDFInfo
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- CN116986849B CN116986849B CN202311253819.4A CN202311253819A CN116986849B CN 116986849 B CN116986849 B CN 116986849B CN 202311253819 A CN202311253819 A CN 202311253819A CN 116986849 B CN116986849 B CN 116986849B
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- 239000011384 asphalt concrete Substances 0.000 title claims abstract description 93
- 238000002360 preparation method Methods 0.000 title claims abstract description 29
- 239000010426 asphalt Substances 0.000 claims abstract description 115
- 229920005610 lignin Polymers 0.000 claims abstract description 60
- 239000002131 composite material Substances 0.000 claims abstract description 59
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 53
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 53
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000003365 glass fiber Substances 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 32
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 28
- 239000002893 slag Substances 0.000 claims abstract description 28
- 239000010959 steel Substances 0.000 claims abstract description 28
- 239000004575 stone Substances 0.000 claims abstract description 27
- 239000006004 Quartz sand Substances 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000002994 raw material Substances 0.000 claims abstract description 15
- 239000002699 waste material Substances 0.000 claims description 52
- 238000002156 mixing Methods 0.000 claims description 40
- 239000000843 powder Substances 0.000 claims description 29
- 239000011152 fibreglass Substances 0.000 claims description 23
- 238000010438 heat treatment Methods 0.000 claims description 23
- 239000008247 solid mixture Substances 0.000 claims description 16
- 238000005303 weighing Methods 0.000 claims description 16
- 239000000835 fiber Substances 0.000 claims description 14
- 229910052708 sodium Inorganic materials 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 7
- 238000010000 carbonizing Methods 0.000 claims description 7
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 6
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 6
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 claims description 5
- 229940072056 alginate Drugs 0.000 claims description 5
- 235000010443 alginic acid Nutrition 0.000 claims description 5
- 229920000615 alginic acid Polymers 0.000 claims description 5
- 230000001590 oxidative effect Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- UUEWCQRISZBELL-UHFFFAOYSA-N 3-trimethoxysilylpropane-1-thiol Chemical compound CO[Si](OC)(OC)CCCS UUEWCQRISZBELL-UHFFFAOYSA-N 0.000 claims description 3
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 claims 3
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 239000002245 particle Substances 0.000 description 20
- 230000000052 comparative effect Effects 0.000 description 11
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical group CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 7
- 239000011734 sodium Substances 0.000 description 7
- 235000010413 sodium alginate Nutrition 0.000 description 7
- 229940005550 sodium alginate Drugs 0.000 description 7
- 239000000661 sodium alginate Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- 239000003513 alkali Substances 0.000 description 5
- 239000004567 concrete Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910052573 porcelain Inorganic materials 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000009270 solid waste treatment Methods 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 238000004131 Bayer process Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- 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
- E01C7/182—Aggregate or filler materials, except those according to E01C7/26
-
- 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
- E01C7/26—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders mixed with other materials, e.g. cement, rubber, leather, fibre
-
- 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
- E01C7/26—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders mixed with other materials, e.g. cement, rubber, leather, fibre
- E01C7/262—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders mixed with other materials, e.g. cement, rubber, leather, fibre with fibrous material, e.g. asbestos; with animal or vegetal admixtures, e.g. leather, cork
-
- 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
- E01C7/26—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders mixed with other materials, e.g. cement, rubber, leather, fibre
- E01C7/265—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders mixed with other materials, e.g. cement, rubber, leather, fibre with rubber or synthetic resin, e.g. with rubber aggregate, with synthetic resin binder
-
- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/2038—Resistance against physical degradation
-
- 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)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Structures (AREA)
Abstract
The invention relates to the field of pavement materials, and particularly discloses high-strength high-wear-resistance asphalt concrete and a preparation method and application thereof. The asphalt concrete provided by the invention comprises the following raw material components in parts by weight: 15-20 parts of lignin carbon modified red mud-based asphalt, 10-15 parts of glass fiber reinforced plastic-rubber composite material, 20-30 parts of diatomite, 15-20 parts of quartz sand, 10-15 parts of blast furnace steel slag, 80-90 parts of crushed stone and 20-40 parts of water. The asphalt concrete provided by the invention has excellent mechanical property, high wear resistance and excellent fatigue resistance, and effectively solves the problems that the asphalt concrete used for the pavement in the prior art is poor in stability, and the mechanical property and wear resistance are poor after long-time use, so that the service life of the whole asphalt concrete is reduced.
Description
Technical Field
The invention relates to the field of pavement materials, and particularly discloses high-strength high-wear-resistance asphalt concrete and a preparation method and application thereof.
Background
Along with the high-speed development of urban construction in China, roads are built, bridges become an important ring of the development of the basic construction in China, and as pavement materials, excellent mechanical properties, long service life and better wear resistance are required. The traditional asphalt pavement has poor mechanical property, low compressive strength and breaking strength and short fatigue life, can not meet the road requirement, and after a period of service, the problems of cracks and aged pavement can occur under the action of a series of severe environments (ultraviolet irradiation, extremely low temperature and continuous overweight driving load), and the pavement surface layer can deform along with the action of long-time vehicle load.
Asphalt concrete is used as pavement material instead of asphalt, and is commonly called asphalt concrete, and mineral aggregate, broken stone or crushed gravel, stone dust or sand, mineral powder and the like with a certain grading composition are manually selected, and the asphalt concrete is mixed with a certain proportion of pavement asphalt material under a strictly controlled condition to form a mixture. However, the asphalt concrete in the prior art is poor in stability, poor in cohesiveness after being used for a period of time, and easy to form ponding on the surface of the asphalt concrete under long-time heavy-load, and the mechanical property and the wear resistance of the asphalt concrete are reduced, so that the overall service life of the asphalt concrete is greatly reduced. Therefore, developing high-strength high-wear-resistance asphalt concrete has great significance for the development of pavement materials.
Disclosure of Invention
Aiming at the problems of poor stability of asphalt concrete used for a pavement and reduced overall service life caused by poor mechanical property and wear resistance after long-time use in the prior art, the invention provides high-strength high-wear-resistance asphalt concrete and a preparation method and application thereof.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the invention provides high-strength high-wear-resistance asphalt concrete, which comprises the following raw material components in parts by mass: 15-20 parts of lignin carbon modified red mud-based asphalt, 10-15 parts of glass fiber reinforced plastic-rubber composite material, 20-30 parts of diatomite, 15-20 parts of quartz sand, 10-15 parts of blast furnace steel slag, 80-90 parts of crushed stone and 20-40 parts of water.
Compared with the prior art, the invention provides the high-strength high-wear-resistance asphalt concrete, the lignin carbon modified red mud-based asphalt is used as the asphalt raw material, red mud is added on the basis of common asphalt, the softening point of the asphalt is improved, the penetration degree of the asphalt is reduced, the red mud-based asphalt obtained by blending the two has high temperature sensitivity and high temperature stability, and the introduction of lignin carbon endows the red mud-based asphalt with high temperature rutting resistance, so that the problem of compaction deformation of the asphalt concrete surface layer under the repeated actions of high temperature and vehicle load is avoided, and the high temperature stability of the asphalt concrete is further improved; and the introduction of lignin carbon is more beneficial to the combination of asphalt raw materials and diatomite, is beneficial to the improvement of the fatigue life and compressive strength of asphalt concrete, and improves the low temperature resistance of the asphalt concrete.
In order to further improve the stability of asphalt concrete, the invention also adopts a glass fiber reinforced plastic-rubber composite material. Compared with the binder or single cementing material used in the prior art, the invention combines the waste glass fiber reinforced plastic fibers with the waste rubber powder, and the waste rubber powder is used for wrapping the glass fiber reinforced plastic to enhance the strength and toughness of the asphalt concrete, and the waste glass fiber reinforced plastic cement composite asphalt concrete is waste, so that the solid waste treatment pressure can be greatly relieved. The addition of the blast furnace steel slag enhances the mechanical property of asphalt concrete, improves the wear resistance of the asphalt concrete, and avoids the problem of road surface sliding caused by long-time use. The high-strength high-wear-resistance asphalt concrete is prepared by compounding various raw material components, and the problems that the asphalt concrete used for the pavement in the prior art is poor in stability, poor in mechanical property and wear resistance after long-time use, and accordingly the overall service life is reduced are effectively solved.
Preferably, the particle size of the quartz sand is 1-2mm.
Preferably, the particle size of the crushed stone is less than or equal to 50 meshes.
Preferably, the preparation method of the lignin carbon modified red mud-based asphalt comprises the following steps:
s1, carbonizing lignin at 500-700 ℃ for 1.5-2 hours to obtain lignin carbon;
s2, heating the asphalt to 110-120 ℃, preserving heat for 20-30 min, adding red mud and alginate into the asphalt, and stirring for 0.5-1 h to obtain red mud-based asphalt;
s3, adding the lignin carbon into the red mud-based asphalt, uniformly mixing, heating to 145-150 ℃, and preserving heat for 1-2 hours to obtain the lignin carbon modified red mud-based asphalt.
According to the invention, lignin carbon modified red mud-based asphalt is used as an asphalt raw material, red mud is added on the basis of common asphalt, the softening point of the asphalt is improved, the penetration of the asphalt is reduced, the red mud-based asphalt obtained by blending the two has high temperature sensitivity and high temperature stability, and the red mud-based asphalt is endowed with high temperature rutting resistance through lignin carbon modification, so that the high temperature stability of asphalt concrete is further improved, and the introduction of lignin carbon is more beneficial to the combination of the asphalt raw material and diatomite, so that the fatigue life and compressive strength of the asphalt concrete are improved, and the low temperature resistance of the asphalt concrete is also improved.
Further preferably, the alginate is sodium alginate.
Further preferably, the red mud is bayer process red mud.
Further preferably, in S2, the mass ratio of the asphalt to the red mud to the alginate is 1:1-1.2:0.05-0.1.
Further preferably, in S3, the mass ratio of the lignin carbon to the red mud-based asphalt is 1:10-15.
Preferably, the glass fiber reinforced plastic-rubber composite material comprises waste glass fiber reinforced plastic fibers and waste rubber powder in a mass ratio of 1:1-2.
Preferably, the preparation method of the glass fiber reinforced plastic-rubber composite material comprises the following steps: and dissolving the waste rubber powder in an oxidizing solution, adding a silane coupling agent and the waste glass fiber, and uniformly mixing to obtain the glass fiber reinforced plastic-rubber composite material.
The invention combines the waste glass fiber reinforced plastic fibers and the waste rubber powder, and the waste rubber powder is used for wrapping the glass fiber reinforced plastic to strengthen the strength and the toughness of the asphalt concrete, and the waste glass fiber reinforced plastic fibers and the waste rubber powder are wastes, so that the solid waste treatment pressure can be greatly relieved.
Further preferably, the particle size of the waste glass fiber reinforced plastic fibers is less than or equal to 1mm.
The waste glass fiber reinforced plastic fiber has good tensile strength and corrosion resistance, is elastic, is a material with excellent mechanical properties, and can improve the toughness and corrosion resistance of asphalt concrete.
Further preferably, the oxidizing solution is a hydrogen peroxide solution with a mass concentration of 30% -50%.
Further preferably, the silane coupling agent is any one or two of gamma-aminopropyl triethoxysilane, gamma- (methacryloxy) propyl trimethoxysilane, gamma-mercaptopropyl trimethoxysilane or vinyl trimethoxysilane.
Further preferably, the mass ratio of the waste rubber powder to the oxidizing liquid is 1:3-5.
Further preferably, the mass ratio of the waste rubber powder to the silane coupling agent to the waste glass fiber reinforced plastic is 1:0.1-0.2:1.
Preferably, the blast furnace steel slag comprises the following components in percentage by mass: siO (SiO) 2 ：25%-32%，CaO：20%-25%，MgO：14%-21%，MnO 2 ：5%-7%，Na 2 O:4% -6% and the balance of Fe 2 O 3 。
The addition of the blast furnace steel slag enhances the mechanical property of the asphalt concrete and simultaneously improves the wear resistance of the asphalt concrete, thereby avoiding the slippery road surface caused by long-time use.
The invention provides a preparation method of the high-strength high-wear-resistance asphalt concrete, which comprises the following steps:
firstly, weighing lignin carbon modified red mud-based asphalt and a glass fiber reinforced plastic-rubber composite material according to a designed proportion, and uniformly mixing to obtain a composite asphalt material;
weighing diatomite, quartz sand, blast furnace steel slag, crushed stone and water according to a designed proportion, and uniformly mixing to obtain a semi-solid mixture;
and thirdly, heating the composite asphalt material to 80-110 ℃, adding the semi-solid mixture into the composite asphalt material for 3-4 times, and uniformly mixing to obtain the high-strength high-wear-resistance asphalt concrete.
The third aspect of the invention provides the high-strength high-wear-resistance asphalt concrete or the application of the asphalt concrete prepared by the preparation method of the high-strength high-wear-resistance asphalt concrete in highway pavement.
In summary, the invention provides high-strength high-wear-resistance asphalt concrete, which takes lignin carbon modified red mud-based asphalt, glass fiber reinforced plastic-rubber composite material, diatomite, quartz sand, blast furnace steel slag, broken stone and water as raw material components, and has excellent mechanical properties, high wear resistance and excellent fatigue resistance. According to the test result of the asphalt concrete provided by the invention, the compressive strength can reach 89.7MPa, the splitting tensile strength can reach 64.3MPa, the flexural strength can reach 74.1MPa, the fatigue life time can reach 13564 times, and the friction coefficient can reach 0.898. The invention effectively solves the problems of poor stability of asphalt concrete used for the pavement, poor mechanical property and wear resistance after long-time use, and reduced overall service life.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The embodiment provides high-strength high-wear-resistance asphalt concrete, which comprises the following steps:
the high-strength high-wear-resistance asphalt concrete comprises the following raw material components in parts by weight: 18 parts of lignin carbon modified red mud-based asphalt, 13 parts of glass fiber reinforced plastic-rubber composite material, 28 parts of diatomite, 16 parts of quartz sand, 12 parts of blast furnace steel slag, 85 parts of crushed stone and 35 parts of water;
the preparation method of the lignin carbon modified red mud-based asphalt comprises the following steps:
s1, carbonizing 100g of alkali lignin for 1.5 hours at the temperature of 650 ℃ to obtain lignin carbon;
s2, heating 500g of asphalt to 115 ℃, preserving heat for 25min, adding 550g of red mud and 30g of sodium alginate into the asphalt, and stirring for 1h to obtain red mud-based asphalt;
s3, adding 80g of lignin carbon into 1000g of red mud-based asphalt, uniformly mixing, heating to 148 ℃, and preserving heat for 1.5h to obtain lignin carbon modified red mud-based asphalt;
the glass fiber reinforced plastic-rubber composite material comprises waste glass fiber reinforced plastic fibers and waste rubber powder in a mass ratio of 1:1, and the concrete preparation method comprises the following steps: dissolving 500g of waste rubber powder in 400mL of hydrogen peroxide solution with the mass fraction of 35%, adding 10g of gamma-aminopropyl triethoxysilane and 500g of waste glass fiber reinforced plastics with the particle size of 0.5mm, and uniformly mixing to obtain the glass fiber reinforced plastics-rubber composite material;
the blast furnace steel slag comprises the following components in percentage by mass: siO (SiO) 2 ：25.89%，CaO：20.17%，MgO：14.96%，MnO 2 ：6.03%，Na 2 O:4.98% and the balance of Fe 2 O 3 ；
The particle size of the quartz sand is 1-2mm; the particle size of the crushed stone is less than or equal to 50 meshes;
the preparation method of the high-strength high-wear-resistance asphalt concrete comprises the following steps:
firstly, weighing lignin carbon modified red mud-based asphalt and a glass fiber reinforced plastic-rubber composite material according to a designed proportion, and uniformly mixing to obtain a composite asphalt material;
weighing diatomite, quartz sand, blast furnace steel slag, crushed stone and water according to a designed proportion, and uniformly mixing to obtain a semi-solid mixture;
and thirdly, heating the composite asphalt material to 100 ℃, adding the semi-solid mixture into the composite asphalt material for 4 times, and uniformly mixing to obtain the high-strength high-wear-resistance asphalt concrete.
Example 2
The embodiment provides high-strength high-wear-resistance asphalt concrete, which comprises the following steps:
the high-strength high-wear-resistance asphalt concrete comprises the following raw material components in parts by weight: 19 parts of lignin carbon modified red mud-based asphalt, 14 parts of glass fiber reinforced plastic-rubber composite material, 22 parts of diatomite, 19 parts of quartz sand, 15 parts of blast furnace steel slag, 81 parts of broken stone and 40 parts of water;
the preparation method of the lignin carbon modified red mud-based asphalt comprises the following steps:
s1, carbonizing 100g of alkali lignin for 2 hours at the temperature of 600 ℃ to obtain lignin carbon;
s2, heating 500g of asphalt to 113 ℃, preserving heat for 25min, adding 550g of red mud and 30g of sodium alginate into the asphalt, and stirring for 1h to obtain red mud-based asphalt;
s3, adding 80g of lignin carbon into 1000g of red mud-based asphalt, uniformly mixing, heating to 148 ℃, and preserving heat for 1.5h to obtain lignin carbon modified red mud-based asphalt;
the glass fiber reinforced plastic-rubber composite material comprises waste glass fiber reinforced plastic fibers and waste rubber powder in a mass ratio of 1:1, and the concrete preparation method comprises the following steps: dissolving 500g of waste rubber powder in 400mL of hydrogen peroxide solution with the mass fraction of 40%, adding 10g of gamma-mercaptopropyl trimethoxy silane and 500g of waste glass fiber reinforced plastic fibers with the particle size of 0.5mm, and uniformly mixing to obtain the glass fiber reinforced plastic-rubber composite material;
the blast furnace steel slag comprises the following components in percentage by mass: siO (SiO) 2 ：31.77%，CaO：24.31%，MgO：18.94%，MnO 2 ：5.52%，Na 2 O:4.33% and the balance of Fe 2 O 3 ；
The particle size of the quartz sand is 1-2mm; the particle size of the crushed stone is less than or equal to 50 meshes;
the preparation method of the high-strength high-wear-resistance asphalt concrete comprises the following steps:
firstly, weighing lignin carbon modified red mud-based asphalt and a glass fiber reinforced plastic-rubber composite material according to a designed proportion, and uniformly mixing to obtain a composite asphalt material;
weighing diatomite, quartz sand, blast furnace steel slag, crushed stone and water according to a designed proportion, and uniformly mixing to obtain a semi-solid mixture;
and thirdly, heating the composite asphalt material to 110 ℃, adding the semi-solid mixture into the composite asphalt material for 4 times, and uniformly mixing to obtain the high-strength high-wear-resistance asphalt concrete.
Example 3
The embodiment provides high-strength high-wear-resistance asphalt concrete, which comprises the following steps:
the high-strength high-wear-resistance asphalt concrete comprises the following raw material components in parts by weight: 15 parts of lignin carbon modified red mud-based asphalt, 11 parts of glass fiber reinforced plastic-rubber composite material, 26 parts of diatomite, 20 parts of quartz sand, 10 parts of blast furnace steel slag, 80 parts of broken stone and 22 parts of water;
the preparation method of the lignin carbon modified red mud-based asphalt comprises the following steps:
s1, carbonizing 100g of alkali lignin for 2 hours at the temperature of 550 ℃ to obtain lignin carbon;
s2, heating 500g of asphalt to 120 ℃, preserving heat for 30min, adding 550g of red mud and 30g of sodium alginate into the asphalt, and stirring for 1h to obtain red mud-based asphalt;
s3, adding 80g of lignin carbon into 1000g of red mud-based asphalt, uniformly mixing, heating to 150 ℃, and preserving heat for 1.5h to obtain lignin carbon modified red mud-based asphalt;
the glass fiber reinforced plastic-rubber composite material comprises waste glass fiber reinforced plastic fibers and waste rubber powder in a mass ratio of 1:1, and the concrete preparation method comprises the following steps: dissolving 500g of waste rubber powder in 400mL of hydrogen peroxide solution with the mass fraction of 35%, adding 10g of gamma-aminopropyl triethoxysilane and 500g of waste glass fiber reinforced plastics with the particle size of 0.5mm, and uniformly mixing to obtain the glass fiber reinforced plastics-rubber composite material;
the blast furnace steel slag comprises the following components in percentage by mass: siO (SiO) 2 ：25.48%，CaO：20.93%，MgO：14.79%，MnO 2 ：5.54%，Na 2 O:4.27% and the balance of Fe 2 O 3 ；
The particle size of the quartz sand is 1-2mm; the particle size of the crushed stone is less than or equal to 50 meshes;
the preparation method of the high-strength high-wear-resistance asphalt concrete comprises the following steps:
firstly, weighing lignin carbon modified red mud-based asphalt and a glass fiber reinforced plastic-rubber composite material according to a designed proportion, and uniformly mixing to obtain a composite asphalt material;
weighing diatomite, quartz sand, blast furnace steel slag, crushed stone and water according to a designed proportion, and uniformly mixing to obtain a semi-solid mixture;
and thirdly, heating the composite asphalt material to 100 ℃, adding the semi-solid mixture into the composite asphalt material for 4 times, and uniformly mixing to obtain the high-strength high-wear-resistance asphalt concrete.
Comparative example 1
This comparative example provides an asphalt concrete, which differs from example 1 in that: the lignin carbon modified red mud-based asphalt is replaced by an equal amount of red mud-based asphalt, and specifically comprises the following steps:
the high-strength high-wear-resistance asphalt concrete comprises the following raw material components in parts by weight: 18 parts of red mud-based asphalt, 13 parts of glass fiber reinforced plastic-rubber composite material, 28 parts of diatomite, 16 parts of quartz sand, 12 parts of blast furnace steel slag, 85 parts of broken stone and 35 parts of water;
the preparation method of the red mud-based asphalt comprises the following steps: heating 500g of asphalt to 115 ℃, preserving heat for 25min, adding 550g of red mud and 30g of sodium alginate into the asphalt, and stirring for 1h to obtain red mud-based asphalt;
the glass fiber reinforced plastic-rubber composite material comprises waste glass fiber reinforced plastic fibers and waste rubber powder in a mass ratio of 1:1, and the concrete preparation method comprises the following steps: dissolving 500g of waste rubber powder in 400mL of hydrogen peroxide solution with the mass fraction of 35%, adding 10g of gamma-aminopropyl triethoxysilane and 500g of waste glass fiber reinforced plastics with the particle size of 0.5mm, and uniformly mixing to obtain the glass fiber reinforced plastics-rubber composite material;
the blast furnace steel slag comprises the following components in percentage by mass: siO (SiO) 2 ：25.89%，CaO：20.17%，MgO：14.96%，MnO 2 ：6.03%，Na 2 O:4.98% and the balance of Fe 2 O 3 ；
The particle size of the quartz sand is 1-2mm; the particle size of the crushed stone is less than or equal to 50 meshes;
the preparation method of the asphalt concrete comprises the following steps:
firstly, weighing red mud-based asphalt and a glass fiber reinforced plastic-rubber composite material according to a designed proportion, and uniformly mixing to obtain a composite asphalt material;
weighing diatomite, quartz sand, blast furnace steel slag, crushed stone and water according to a designed proportion, and uniformly mixing to obtain a semi-solid mixture;
and thirdly, heating the composite asphalt material to 100 ℃, adding the semi-solid mixture into the composite asphalt material for 4 times, and uniformly mixing to obtain the asphalt concrete.
Comparative example 2
This example provides an asphalt concrete, which differs from example 1 in that: the glass fiber reinforced plastic-rubber composite material is replaced by waste rubber powder with equal quantity, and the method specifically comprises the following steps:
the high-strength high-wear-resistance asphalt concrete comprises the following raw material components in parts by weight: 18 parts of lignin carbon modified red mud-based asphalt, 13 parts of waste rubber powder, 28 parts of diatomite, 16 parts of quartz sand, 12 parts of blast furnace steel slag, 85 parts of broken stone and 35 parts of water;
the preparation method of the lignin carbon modified red mud-based asphalt comprises the following steps:
s1, carbonizing 100g of alkali lignin for 1.5 hours at the temperature of 650 ℃ to obtain lignin carbon;
s2, heating 500g of asphalt to 115 ℃, preserving heat for 25min, adding 550g of red mud and 30g of sodium alginate into the asphalt, and stirring for 1h to obtain red mud-based asphalt;
s3, adding 80g of lignin carbon into 1000g of red mud-based asphalt, uniformly mixing, heating to 148 ℃, and preserving heat for 1.5h to obtain lignin carbon modified red mud-based asphalt;
the blast furnace steel slag comprises the following components in percentage by mass: siO (SiO) 2 ：25.89%，CaO：20.17%，MgO：14.96%，MnO 2 ：6.03%，Na 2 O:4.98% and the balance of Fe 2 O 3 ；
The particle size of the quartz sand is 1-2mm; the particle size of the crushed stone is less than or equal to 50 meshes;
the preparation method of the high-strength high-wear-resistance asphalt concrete comprises the following steps:
firstly, weighing lignin carbon modified red mud-based asphalt and waste rubber powder according to a designed proportion, and uniformly mixing to obtain a composite asphalt material;
weighing diatomite, quartz sand, blast furnace steel slag, crushed stone and water according to a designed proportion, and uniformly mixing to obtain a semi-solid mixture;
and thirdly, heating the composite asphalt material to 100 ℃, adding the semi-solid mixture into the composite asphalt material for 4 times, and uniformly mixing to obtain the asphalt concrete.
Comparative example 3
This comparative example provides an asphalt concrete, which differs from example 1 in that: the diatomite in the example 1 is replaced by waste porcelain powder with the same amount, and the method specifically comprises the following steps:
the high-strength high-wear-resistance asphalt concrete comprises the following raw material components in parts by weight: 18 parts of lignin carbon modified red mud-based asphalt, 13 parts of glass fiber reinforced plastic-rubber composite material, 28 parts of waste porcelain powder, 16 parts of quartz sand, 12 parts of blast furnace steel slag, 85 parts of broken stone and 35 parts of water;
the preparation method of the lignin carbon modified red mud-based asphalt comprises the following steps:
s1, carbonizing 100g of alkali lignin for 1.5 hours at the temperature of 650 ℃ to obtain lignin carbon;
s2, heating 500g of asphalt to 115 ℃, preserving heat for 25min, adding 550g of red mud and 30g of sodium alginate into the asphalt, and stirring for 1h to obtain red mud-based asphalt;
s3, adding 80g of lignin carbon into 1000g of red mud-based asphalt, uniformly mixing, heating to 148 ℃, and preserving heat for 1.5h to obtain lignin carbon modified red mud-based asphalt;
the glass fiber reinforced plastic-rubber composite material comprises waste glass fiber reinforced plastic fibers and waste rubber powder in a mass ratio of 1:1, and the concrete preparation method comprises the following steps: dissolving 500g of waste rubber powder in 400mL of hydrogen peroxide solution with the mass fraction of 35%, adding 10g of gamma-aminopropyl triethoxysilane and 500g of waste glass fiber reinforced plastics with the particle size of 0.5mm, and uniformly mixing to obtain the glass fiber reinforced plastics-rubber composite material;
the blast furnace steel slag comprises the following components in percentage by mass: siO (SiO) 2 ：25.89%，CaO：20.17%，MgO：14.96%，MnO 2 ：6.03%，Na 2 O:4.98% and the balance of Fe 2 O 3 ；
The particle size of the quartz sand is 1-2mm; the particle size of the crushed stone is less than or equal to 50 meshes;
the preparation method of the high-strength high-wear-resistance asphalt concrete comprises the following steps:
firstly, weighing lignin carbon modified red mud-based asphalt and a glass fiber reinforced plastic-rubber composite material according to a designed proportion, and uniformly mixing to obtain a composite asphalt material;
weighing waste porcelain powder, quartz sand, blast furnace steel slag, broken stone and water according to a designed proportion, and uniformly mixing to obtain a semi-solid mixture;
and thirdly, heating the composite asphalt material to 100 ℃, adding the semi-solid mixture into the composite asphalt material for 4 times, and uniformly mixing to obtain the asphalt concrete.
In order to further embody the technical effects of the present invention, the present invention conducted the following tests on the asphalt concretes obtained in examples 1 to 3 and comparative examples 1 to 3:
(1) The asphalt concretes obtained in examples 1-3 and comparative examples 1-4 were subjected to the relevant mechanical property test according to GB/T50784-2013 standard, and the test results are shown in Table 1.
(2) The asphalt concretes obtained in examples 1 to 3 and comparative examples 1 to 4 were tested for dynamic stability and fatigue resistance according to the rules of the test procedure for asphalt and asphalt mixtures for highway engineering (JTG E20-2011). And the asphalt concretes obtained in the examples 1-3 and the comparative examples 1-4 are subjected to friction coefficient measurement by adopting a pendulum friction coefficient measuring instrument, the point taking of the measuring point is carried out on each sample, 5 times of pendulum value measurement are carried out, and then the average value of 5 measured readings represents the pendulum value of the measuring point, so that the friction coefficient of the pavement is calculated, and the calculation formula is as follows: the friction coefficient of the road surface=the average value of the swing values of the measuring points/100, namely the friction coefficient of the road surface, and the test results are shown in table 2.
TABLE 1 Performance test results of asphalt concretes obtained in examples 1-3 and comparative examples 1-3
As can be seen from Table 1, the asphalt concrete provided by the examples of the present invention has excellent properties, and in particular, the asphalt concrete obtained in example 1 has a compressive strength of 89.7MPa, a splitting tensile strength of 64.3MPa, and a flexural strength of 74.1MPa, which indicates that the asphalt concrete provided by the present invention has high strength.
TABLE 2 test results of asphalt concretes obtained in examples 1-3 and comparative examples 1-3
According to table 2, it can be seen that the dynamic stability of the asphalt concrete provided by the embodiment of the invention is far greater than 2000 specified by the specification, which indicates that the asphalt concrete provided by the embodiment of the invention has excellent high-temperature rutting resistance, and according to fatigue life, the number of times of fatigue life resistance is as high as 13564, which also proves that the asphalt concrete provided by the embodiment of the invention has high bonding degree, good internal filling degree, less cracking condition caused by accumulation of the asphalt concrete under the action of repeated traffic load, and the wear resistance coefficient of the asphalt concrete provided by the invention is as high as 0.898, which indicates that the asphalt concrete has excellent wear resistance and high wear resistance.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, or alternatives falling within the spirit and principles of the invention.
Claims (5)
1. A high-strength high-wear-resistance asphalt concrete is characterized in that: the composite material comprises the following raw material components in parts by weight: 15-20 parts of lignin carbon modified red mud-based asphalt, 10-15 parts of glass fiber reinforced plastic-rubber composite material, 20-30 parts of diatomite, 15-20 parts of quartz sand, 10-15 parts of blast furnace steel slag, 80-90 parts of crushed stone and 20-40 parts of water;
the preparation method of the lignin carbon modified red mud-based asphalt comprises the following steps:
s1, carbonizing lignin at 500-700 ℃ for 1.5-2 hours to obtain lignin carbon;
s2, heating the asphalt to 110-120 ℃, preserving heat for 20-30 min, adding red mud and alginate into the asphalt, and stirring for 0.5-1 h to obtain red mud-based asphalt;
s3, adding the lignin carbon into the red mud-based asphalt, uniformly mixing, heating to 145-150 ℃, and preserving heat for 1-2 hours to obtain the lignin carbon modified red mud-based asphalt;
the preparation method of the glass fiber reinforced plastic-rubber composite material comprises the following steps: dissolving waste rubber powder in an oxidizing solution, adding a silane coupling agent and waste glass fiber reinforced plastic fibers, and uniformly mixing to obtain the glass fiber reinforced plastic-rubber composite material;
in S2, the mass ratio of the asphalt to the red mud to the alginate is 1:1-1.2:0.05-0.1;
s3, the mass ratio of the lignin carbon to the red mud-based asphalt is 1:10-15;
the mass ratio of the waste rubber powder to the oxidizing liquid is 1:3-5; the oxidation solution is hydrogen peroxide solution with the mass concentration of 30% -50%;
the mass ratio of the waste rubber powder to the silane coupling agent to the waste glass fiber reinforced plastic is 1:0.1-0.2:1.
2. The high strength, high abrasion resistant asphalt concrete of claim 1, wherein: the grain diameter of the waste glass fiber reinforced plastic fibers is less than or equal to 1mm; and/or
The silane coupling agent is any one or two of gamma-aminopropyl triethoxysilane, gamma- (methacryloyloxy) propyl trimethoxysilane, gamma-mercaptopropyl trimethoxysilane or vinyl trimethoxysilane.
3. The high strength, high abrasion resistant asphalt concrete of claim 1, wherein: the blast furnace steel slag comprises the following components in percentage by mass: siO (SiO) 2 ：25%-32%，CaO：20%-25%，MgO：14%-21%，MnO 2 ：5%-7%，Na 2 O:4% -6% and the balance of Fe 2 O 3 。
4. A method for preparing high strength and high abrasion resistant asphalt concrete according to any one of claims 1 to 3, wherein: the method comprises the following steps:
firstly, weighing lignin carbon modified red mud-based asphalt and a glass fiber reinforced plastic-rubber composite material according to a designed proportion, and uniformly mixing to obtain a composite asphalt material;
weighing diatomite, quartz sand, blast furnace steel slag, crushed stone and water according to a designed proportion, and uniformly mixing to obtain a semi-solid mixture;
and thirdly, heating the composite asphalt material to 80-110 ℃, adding the semi-solid mixture into the composite asphalt material for 3-4 times, and uniformly mixing to obtain the high-strength high-wear-resistance asphalt concrete.
5. Use of the high-strength and high-wear-resistant asphalt concrete according to any one of claims 1 to 3 or the asphalt concrete prepared by the preparation method of the high-strength and high-wear-resistant asphalt concrete according to claim 4 in highway pavement.
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