CN113511839A - Smoke-inhibiting odorless asphalt mixture and preparation method thereof - Google Patents
Smoke-inhibiting odorless asphalt mixture and preparation method thereof Download PDFInfo
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- CN113511839A CN113511839A CN202110355395.7A CN202110355395A CN113511839A CN 113511839 A CN113511839 A CN 113511839A CN 202110355395 A CN202110355395 A CN 202110355395A CN 113511839 A CN113511839 A CN 113511839A
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- 239000010426 asphalt Substances 0.000 title claims abstract description 153
- 239000000779 smoke Substances 0.000 title claims abstract description 95
- 239000000203 mixture Substances 0.000 title claims abstract description 83
- 230000009965 odorless effect Effects 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 230000002401 inhibitory effect Effects 0.000 title claims description 30
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 59
- 230000001629 suppression Effects 0.000 claims abstract description 57
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims abstract description 56
- 229920013716 polyethylene resin Polymers 0.000 claims abstract description 44
- 238000002156 mixing Methods 0.000 claims abstract description 37
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims abstract description 29
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims abstract description 29
- 239000000347 magnesium hydroxide Substances 0.000 claims abstract description 29
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000002994 raw material Substances 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 27
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 27
- 239000000295 fuel oil Substances 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 25
- 239000000835 fiber Substances 0.000 claims abstract description 23
- 229920005610 lignin Polymers 0.000 claims abstract description 22
- 229920001046 Nanocellulose Polymers 0.000 claims abstract description 20
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims abstract description 19
- 239000002781 deodorant agent Substances 0.000 claims abstract description 14
- 230000009967 tasteless effect Effects 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims description 96
- 239000002131 composite material Substances 0.000 claims description 64
- 239000012615 aggregate Substances 0.000 claims description 35
- 238000003756 stirring Methods 0.000 claims description 12
- 238000009210 therapy by ultrasound Methods 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 abstract description 12
- 238000010276 construction Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 10
- 230000002829 reductive effect Effects 0.000 abstract description 9
- 238000003915 air pollution Methods 0.000 abstract description 3
- 230000000593 degrading effect Effects 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 16
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000001877 deodorizing effect Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 239000002086 nanomaterial Substances 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 150000003568 thioethers Chemical class 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000007539 photo-oxidation reaction Methods 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- RAOIDOHSFRTOEL-UHFFFAOYSA-N tetrahydrothiophene Chemical class C1CCSC1 RAOIDOHSFRTOEL-UHFFFAOYSA-N 0.000 description 1
- 229930192474 thiophene Natural products 0.000 description 1
- 150000003577 thiophenes Chemical class 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/30—Oxides other than silica
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/30—Oxides other than silica
- C04B14/305—Titanium oxide, e.g. titanates
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/36—Inorganic materials not provided for in groups C04B14/022 and C04B14/04 - C04B14/34
-
- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/38—Polysaccharides or derivatives thereof
- C04B24/383—Cellulose or derivatives thereof
-
- 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
- C04B2111/00008—Obtaining or using nanotechnology related 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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a smoke-suppressing tasteless asphalt mixture and a preparation method thereof, and particularly relates to the technical field of asphalt materials, wherein the asphalt mixture comprises modified asphalt, lignin fiber, a smoke-suppressing deodorant and aggregate; the smoke suppression and odor removal agent comprises a component A and a component B; the component A comprises nano magnesium hydroxide, nano manganese dioxide, silicon carbide, nano titanium dioxide and polyethylene resin; b comprises the following steps: medium-temperature coal-gasified heavy oil, nano aluminum hydroxide, nano cellulose and polyethylene resin. The smoke suppression and odor removal performance of the asphalt mixture can be effectively improved, harmful gas and peculiar smell generated in the processing process of the asphalt mixture can be effectively reduced, air pollution is reduced, and the safety of workers is ensured; raw materials in the component A in the smoke suppression and odor removal agent are used for degrading harmful gases in the asphalt mixture, so that odorless asphalt mixing construction is realized; the raw materials in the component B are used for reducing viscosity and drag of asphalt, so that the construction temperature is reduced.
Description
Technical Field
The invention relates to the technical field of asphalt materials, in particular to a smoke-suppressing tasteless asphalt mixture and a preparation method thereof.
Background
With the rapid development of asphalt pavement technology, the proportion of asphalt pavement is getting larger and larger. Asphalt pavements have become the main structural form of high-grade pavements in China due to the advantages of good flatness, small vibration, short construction period, easy maintenance and the like. However, with the rapid development of the traffic industry, the deepening of engineering practice and the thinking-back summary of engineers, higher requirements are also put forward on the paving of asphalt pavements, and the construction of green and environment-friendly asphalt pavements is the core content of the future traffic industry development in China. Petroleum asphalt, as a product of vacuum residue, has three main sulfides: sulfides (including alkyl, cycloalkyl, aryl, and mixed-base sulfides), thiophenes, and tetrahydrothiophenes homologs; therefore, the asphalt can generate strong pungent odor in the high-temperature mixing and construction processes; meanwhile, a large amount of polycyclic aromatic hydrocarbons in the asphalt also have strong pungent smell, and the environmental protection problems of dense smoke, peculiar smell and the like generated in the asphalt mixing and paving processes in the asphalt pavement construction process in China are not solved all the time. The use of smoke suppressant and odor suppressant in the asphalt reduces smoke and off-flavors during use of the asphalt.
The existing asphalt mixture has poor smoke suppression and odor removal effects, the mixing temperature is high, and the environmental temperature is increased, so that the dense fog and the odor are more serious.
Disclosure of Invention
In order to overcome the above-mentioned drawbacks of the prior art, embodiments of the present invention provide a smoke-suppressing odorless asphalt mixture and a preparation method thereof.
In order to achieve the purpose, the invention provides the following technical scheme: a smoke-inhibiting odorless asphalt mixture comprises the following components in percentage by weight: 5.84-6.26% of modified asphalt, 0.29-0.41% of lignin fiber, 0.47-0.53% of smoke suppression and odor removal agent, and the balance of aggregate; the smoke suppression and odor removal agent comprises the following components in percentage by weight: 5.45-5.87% of the component A, and the balance of the component B; the component A comprises the following components in percentage by weight: 20.84-21.26% of nano magnesium hydroxide, 19.50-20.70% of nano manganese dioxide, 17.45-18.61% of silicon carbide, 18.56-18.88% of nano titanium dioxide and the balance of polyethylene resin; the component B comprises the following components in percentage by weight: 45.84-46.26% of medium-temperature coal-gasified heavy oil, 2.84-3.26% of nano aluminum hydroxide, 8.50-9.70% of nano cellulose and the balance of polyethylene resin.
Further, the paint comprises the following components in percentage by weight: 5.84% of modified asphalt, 0.29% of lignin fiber, 0.47% of smoke suppression and odor removal agent and 93.40% of aggregate; the smoke suppression and odor removal agent comprises the following components in percentage by weight: 5.45% of component A, 94.55% of component B; the component A comprises the following components in percentage by weight: 20.84% of nano magnesium hydroxide, 19.50% of nano manganese dioxide, 17.45% of silicon carbide, 18.56% of nano titanium dioxide and 23.65% of polyethylene resin; the component B comprises the following components in percentage by weight: 45.84% of medium-temperature coal-gasified heavy oil, 2.84% of nano aluminum hydroxide, 8.50% of nano cellulose and 42.82% of polyethylene resin.
Further, the paint comprises the following components in percentage by weight: 6.26% of modified asphalt, 0.41% of lignin fiber, 0.53% of smoke suppression and odor removal agent and 92.80% of aggregate; the smoke suppression and odor removal agent comprises the following components in percentage by weight: 5.87% of component A, 94.13% of component B; the component A comprises the following components in percentage by weight: 21.26% of nano magnesium hydroxide, 20.70% of nano manganese dioxide, 18.61% of silicon carbide, 18.88% of nano titanium dioxide and 20.55% of polyethylene resin; the component B comprises the following components in percentage by weight: 46.26 percent of medium-temperature coal-gasified heavy oil, 3.26 percent of nano aluminum hydroxide, 9.70 percent of nano cellulose and 40.78 percent of polyethylene resin.
Further, the paint comprises the following components in percentage by weight: 6.05% of modified asphalt, 0.35% of lignin fiber, 0.50% of smoke suppression and odor removal agent and 93.10% of aggregate; the smoke suppression and odor removal agent comprises the following components in percentage by weight: 5.66% of component A, 94.34% of component B; the component A comprises the following components in percentage by weight: 21.05% of nano magnesium hydroxide, 20.10% of nano manganese dioxide, 18.03% of silicon carbide, 18.72% of nano titanium dioxide and 22.10% of polyethylene resin; the component B comprises the following components in percentage by weight: 46.05 percent of medium-temperature coal-gasified heavy oil, 3.05 percent of nano aluminum hydroxide, 9.10 percent of nano cellulose and 41.80 percent of polyethylene resin.
Further, the aggregate is a basalt composite material, the basalt composite material comprises a basalt fine material and a basalt coarse material, and the basalt fine material and the basalt coarse material are in a weight ratio of: 1: 1.
The invention also provides a preparation method of the smoke-suppressing odorless asphalt mixture, which comprises the following specific preparation steps:
the method comprises the following steps: weighing various raw materials of modified asphalt, lignin fiber, aggregate and smoke suppression and odor removal agent according to the weight percentage;
step two: preparing a smoke-inhibiting deodorant, mixing the polyethylene resin in the component A with half of nano magnesium hydroxide, nano manganese dioxide, silicon carbide and nano titanium dioxide in parts by weight, heating and ultrasonically treating for 40-50 min to obtain a composite smoke-inhibiting deodorant component;
step three: adding one fourth of nano magnesium hydroxide, nano manganese dioxide, silicon carbide and nano titanium dioxide in parts by weight in the component A into the medium-temperature coal-gasified heavy oil in the component B, and carrying out mixed heating ultrasonic treatment for 40-50 min to obtain composite modified heavy oil;
step four: adding the residual nano magnesium hydroxide, nano manganese dioxide, silicon carbide and nano titanium dioxide in the component A into the polyethylene resin in the component B, mixing, heating and ultrasonically treating for 40-50 min to obtain composite modified polyethylene resin;
step five: mixing the composite smoke-inhibiting and odor-removing component prepared in the step two, the composite modified heavy oil prepared in the step three, the composite modified polyethylene resin prepared in the step four, the nano aluminum hydroxide and the nano cellulose in the step one, heating and ultrasonically treating for 70-80 min to obtain a smoke-inhibiting and odor-removing agent;
step six: heating, stirring and mixing three fifths of the smoke suppression and odor removal agent in the fifth step and the modified asphalt in the first step for 3.5-4.5 min to obtain composite modified asphalt; stirring and mixing the residual smoke-inhibiting deodorant in the step five and the aggregate in the step one for 3.5-4.5 min to obtain a composite modified aggregate; and finally, heating, stirring and mixing the composite modified asphalt, the composite modified aggregate and the lignin fiber in the step one for 45-55 s to obtain the smoke-inhibiting odorless asphalt mixture.
Further, the heating temperature in the second step is 70-80 ℃, the heating temperature in the third step is 90-100 ℃, the heating temperature in the fourth step is 70-80 ℃, the heating temperature in the fifth step is 130-150 ℃, the heating temperature for preparing the composite modified asphalt in the sixth step is 130-150 ℃, and the heating temperature for the asphalt mixture in the sixth step is 165-175 ℃.
Further, the heating temperature in the second step is 70 ℃, the heating temperature in the third step is 90 ℃, the heating temperature in the fourth step is 70 ℃, the heating temperature in the fifth step is 130 ℃, the heating temperature for preparing the composite modified asphalt in the sixth step is 130 ℃, and the heating temperature for the asphalt mixture in the sixth step is 165 ℃.
Further, the heating temperature in the second step is 75 ℃, the heating temperature in the third step is 95 ℃, the heating temperature in the fourth step is 75 ℃, the heating temperature in the fifth step is 140 ℃, the heating temperature for preparing the composite modified asphalt in the sixth step is 140 ℃, and the heating temperature for the asphalt mixture in the sixth step is 170 ℃.
Further, the heating temperature in the second step is 80 ℃, the heating temperature in the third step is 100 ℃, the heating temperature in the fourth step is 80 ℃, the heating temperature in the fifth step is 150 ℃, the heating temperature for preparing the composite modified asphalt in the sixth step is 150 ℃, and the heating temperature for the asphalt mixture in the sixth step is 175 ℃.
The invention has the technical effects and advantages that:
1. the smoke-inhibiting and odor-removing asphalt mixture prepared by the raw material formula can effectively improve the smoke-inhibiting and odor-removing performance of the asphalt mixture, effectively reduce harmful gases and peculiar smell generated in the processing process of the asphalt mixture, reduce air pollution and ensure the safety of workers; the smoke suppression and odor removal agent in the formula is used for suppressing and reducing smoke and peculiar smell of the asphalt mixture, and raw materials in the component A in the smoke suppression and odor removal agent are used for degrading harmful gases in the asphalt mixture, so that odorless asphalt mixing construction is realized; the raw materials in the component B are used for reducing viscosity and drag of asphalt, so that the construction temperature is reduced; the nano magnesium hydroxide can adsorb gas to form an adsorption layer, the manganese dioxide can oxidize components in the asphalt to further reduce harmful gas components, and the nano titanium dioxide can catalyze and photolyze various organic matters and partial inorganic matters such as formaldehyde and the like attached to the surface of an object to further reduce harmful gas and peculiar smell in the asphalt mixture; the nano-cellulose can effectively improve the stability and durability of the asphalt mixture;
2. in the process of preparing the smoke-suppressing tasteless asphalt mixture, part of raw materials of the component A in the smoke-suppressing deodorant are subjected to ultrasonic mixing treatment in the step II, so that the mixing effect of the raw materials can be effectively accelerated, and the raw materials are subjected to composite modification treatment; in the third step and the fourth step, part of raw materials in the component A and part of raw materials in the component B are subjected to ultrasonic treatment, so that the combination effect of the raw materials of the component A and the raw materials of the component B can be effectively enhanced, and meanwhile, the materials in the component A are used for carrying out modification treatment on the materials in the component B, so that the performance of the smoke suppression and odor removal agent is further enhanced; and in the sixth step, part of the smoke suppression and odor removal agent is directly mixed with the asphalt, and the other part of the smoke suppression and odor removal agent is mixed with the aggregate and then is completely mixed, so that the combination effect of the asphalt and the smoke suppression and odor removal agent can be effectively enhanced, the smoke suppression and odor removal agent is ensured to be larger in distribution range and more uniform in distribution, and the smoke suppression and odor removal effect on the asphalt mixture is further ensured.
Detailed Description
The following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
the invention provides a smoke-suppressing tasteless asphalt mixture, which comprises the following components in percentage by weight: comprises the following components in percentage by weight: 5.84% of modified asphalt, 0.29% of lignin fiber, 0.47% of smoke suppression and odor removal agent and 93.40% of aggregate; the smoke suppression and odor removal agent comprises the following components in percentage by weight: 5.45% of component A, 94.55% of component B; the component A comprises the following components in percentage by weight: 20.84% of nano magnesium hydroxide, 19.50% of nano manganese dioxide, 17.45% of silicon carbide, 18.56% of nano titanium dioxide and 23.65% of polyethylene resin; the component B comprises the following components in percentage by weight: 45.84% of medium-temperature coal-gasified heavy oil, 2.84% of nano aluminum hydroxide, 8.50% of nano cellulose and 42.82% of polyethylene resin;
the aggregate is a basalt composite material, the basalt composite material comprises a basalt fine material and a basalt coarse material, and the basalt fine material and the basalt coarse material are in a weight ratio of: 1: 1;
the invention also provides a preparation method of the smoke-suppressing odorless asphalt mixture, which comprises the following specific preparation steps:
the method comprises the following steps: weighing various raw materials of modified asphalt, lignin fiber, aggregate and smoke suppression and odor removal agent according to the weight percentage;
step two: preparing a smoke-inhibiting deodorant, mixing the polyethylene resin in the component A with half of nano magnesium hydroxide, nano manganese dioxide, silicon carbide and nano titanium dioxide in parts by weight, heating and ultrasonically treating for 40-50 min to obtain a composite smoke-inhibiting deodorant component;
step three: adding one fourth of nano magnesium hydroxide, nano manganese dioxide, silicon carbide and nano titanium dioxide in parts by weight in the component A into the medium-temperature coal-gasified heavy oil in the component B, and carrying out mixed heating ultrasonic treatment for 40-50 min to obtain composite modified heavy oil;
step four: adding the residual nano magnesium hydroxide, nano manganese dioxide, silicon carbide and nano titanium dioxide in the component A into the polyethylene resin in the component B, mixing, heating and ultrasonically treating for 40-50 min to obtain composite modified polyethylene resin;
step five: mixing the composite smoke-inhibiting and odor-removing component prepared in the step two, the composite modified heavy oil prepared in the step three, the composite modified polyethylene resin prepared in the step four, the nano aluminum hydroxide and the nano cellulose in the step one, heating and ultrasonically treating for 70-80 min to obtain a smoke-inhibiting and odor-removing agent;
step six: heating, stirring and mixing three fifths of the smoke suppression and odor removal agent in the fifth step and the modified asphalt in the first step for 3.5-4.5 min to obtain composite modified asphalt; stirring and mixing the residual smoke-inhibiting deodorant in the step five and the aggregate in the step one for 3.5-4.5 min to obtain a composite modified aggregate; and finally, heating, stirring and mixing the composite modified asphalt, the composite modified aggregate and the lignin fiber in the step one for 45-55 s to obtain the smoke-inhibiting odorless asphalt mixture.
The heating temperature in the second step is 70 ℃, the heating temperature in the third step is 90 ℃, the heating temperature in the fourth step is 70 ℃, the heating temperature in the fifth step is 130 ℃, the heating temperature for preparing the composite modified asphalt in the sixth step is 130 ℃, and the heating temperature for the asphalt mixture in the sixth step is 165 ℃.
Example 2:
different from the embodiment 1, the material comprises the following components in percentage by weight: 6.26% of modified asphalt, 0.41% of lignin fiber, 0.53% of smoke suppression and odor removal agent and 92.80% of aggregate; the smoke suppression and odor removal agent comprises the following components in percentage by weight: 5.87% of component A, 94.13% of component B; the component A comprises the following components in percentage by weight: 21.26% of nano magnesium hydroxide, 20.70% of nano manganese dioxide, 18.61% of silicon carbide, 18.88% of nano titanium dioxide and 20.55% of polyethylene resin; the component B comprises the following components in percentage by weight: 46.26 percent of medium-temperature coal-gasified heavy oil, 3.26 percent of nano aluminum hydroxide, 9.70 percent of nano cellulose and 40.78 percent of polyethylene resin.
Example 3:
different from the examples 1-2, the material comprises the following components in percentage by weight: 6.05% of modified asphalt, 0.35% of lignin fiber, 0.50% of smoke suppression and odor removal agent and 93.10% of aggregate; the smoke suppression and odor removal agent comprises the following components in percentage by weight: 5.66% of component A, 94.34% of component B; the component A comprises the following components in percentage by weight: 21.05% of nano magnesium hydroxide, 20.10% of nano manganese dioxide, 18.03% of silicon carbide, 18.72% of nano titanium dioxide and 22.10% of polyethylene resin; the component B comprises the following components in percentage by weight: 46.05 percent of medium-temperature coal-gasified heavy oil, 3.05 percent of nano aluminum hydroxide, 9.10 percent of nano cellulose and 41.80 percent of polyethylene resin.
The asphalt mixtures prepared in the above examples 1 to 3 were taken as the asphalt mixture of the first control group and the asphalt mixture of the second control group, respectively, the asphalt mixture of the first control group did not use the component B in the smoke suppressing and deodorizing agent compared with the examples, the asphalt mixture of the second control group did not use the component a in the smoke suppressing and deodorizing agent compared with the examples, the asphalt mixtures prepared in the three examples and the asphalt mixtures of the two control groups that were smoke suppressing and odorless were tested in five groups, and each 30 samples were taken as one group, and the test results are shown in table one:
table one:
as can be seen from Table I, the mixture ratio of the raw materials of the bituminous mixture which is smoke-suppressing and odorless is as follows: comprises the following components in percentage by weight: 6.05% of modified asphalt, 0.35% of lignin fiber, 0.50% of smoke suppression and odor removal agent and 93.10% of aggregate; the smoke suppression and odor removal agent comprises the following components in percentage by weight: 5.66% of component A, 94.34% of component B; the component A comprises the following components in percentage by weight: 21.05% of nano magnesium hydroxide, 20.10% of nano manganese dioxide, 18.03% of silicon carbide, 18.72% of nano titanium dioxide and 22.10% of polyethylene resin; the component B comprises the following components in percentage by weight: 46.05 percent of medium-temperature coal-gasified heavy oil, 3.05 percent of nano aluminum hydroxide, 9.10 percent of nano cellulose and 41.80 percent of polyethylene resin, the smoke-inhibiting and odor-removing performance of the asphalt mixture can be effectively improved, harmful gases and peculiar smell generated in the processing process of the asphalt mixture can be effectively reduced, air pollution is reduced, and the safety of workers is ensured; therefore, the embodiment 3 is a better implementation mode of the invention, the smoke suppression and odor removal agent in the formula is used for suppressing and reducing smoke and peculiar smell of the asphalt mixture, and the raw materials in the component A in the smoke suppression and odor removal agent are used for degrading harmful gases in the asphalt mixture, so that the odorless asphalt mixing construction is realized; the raw materials in the component B are used for reducing viscosity and drag of asphalt, so that the construction temperature is reduced; the nano magnesium hydroxide can obviously improve the performances of flame retardance, smoke suppression, drip prevention and the like of the asphalt under the condition of hardly influencing the use strength of the asphalt; because the particle size of magnesium hydroxide of the nano material is reduced, the surface atomic number occupies a large proportion, the adsorption capacity is enhanced, and the chemical activity is increased therewith, a plurality of metal nano materials are combusted by violent oxidation reaction in the air at room temperature, and the inorganic nano material exposed in the atmospheric environment can adsorb gas to form an adsorption layer, so that the smoke suppression and odor removal effects of the asphalt mixture are further enhanced; the nanometer aluminum hydroxide can improve the flame retardance, the arc resistance and the trace resistance of the asphalt mixture; manganese dioxide is added into the asphalt mixture as an oxide, so that components in the asphalt can be oxidized, harmful gas components are further reduced, and the smoke suppression and odor removal effects are enhanced; the silicon carbide has stable chemical performance, high heat conductivity coefficient, small thermal expansion coefficient and good wear resistance, and can effectively improve the wear resistance and heat resistance of the asphalt pavement; the nano titanium dioxide is white loose powder, has strong ultraviolet shielding effect, good dispersibility and weather resistance, can activate the titanium dioxide under the action of ultraviolet rays in sunlight or lamplight to generate free radicals with high catalytic activity, can generate strong photooxidation and reduction capability, can catalyze and photolyze various organic matters and partial inorganic matters such as formaldehyde and the like attached to the surface of an object, and can further reduce harmful gases and peculiar smell in the asphalt mixture; the nano cellulose has good affinity to natural fibers in the composite material, can form a self-adaptive structure, has the effect of weakening local stress of an interface, is influenced by the stress, can slide along the surface of a filling material, and after moving to a new position, the broken bonds are re-connected to form new bonds, so that certain bonding strength can be kept between asphalt and the filling material, and the damage of the composite material is slowed down; moreover, within the nanoscale range, the fracture strength of the asphalt mixture can be optimized to the greatest extent, the asphalt mixture has the effects of preventing cracks and damage and expansion, and the nanocellulose can be used as a reinforcement to be correspondingly applied to the asphalt mixture, so that the stability and the durability of the asphalt mixture can be effectively improved.
Example 4
In the above preferred technical scheme, the invention provides a smoke-suppressing odorless asphalt mixture, which comprises the following components in percentage by weight: 6.05% of modified asphalt, 0.35% of lignin fiber, 0.50% of smoke suppression and odor removal agent and 93.10% of aggregate; the smoke suppression and odor removal agent comprises the following components in percentage by weight: 5.66% of component A, 94.34% of component B; the component A comprises the following components in percentage by weight: 21.05% of nano magnesium hydroxide, 20.10% of nano manganese dioxide, 18.03% of silicon carbide, 18.72% of nano titanium dioxide and 22.10% of polyethylene resin; the component B comprises the following components in percentage by weight: 46.05 percent of medium-temperature coal-gasified heavy oil, 3.05 percent of nano aluminum hydroxide, 9.10 percent of nano cellulose and 41.80 percent of polyethylene resin.
The aggregate is a basalt composite material, the basalt composite material comprises a basalt fine material and a basalt coarse material, and the basalt fine material and the basalt coarse material are in a weight ratio of: 1: 1.
The invention also provides a preparation method of the smoke-suppressing odorless asphalt mixture, which comprises the following specific preparation steps:
the method comprises the following steps: weighing various raw materials of modified asphalt, lignin fiber, aggregate and smoke suppression and odor removal agent according to the weight percentage;
step two: preparing a smoke-inhibiting deodorant, mixing the polyethylene resin in the component A with half of nano magnesium hydroxide, nano manganese dioxide, silicon carbide and nano titanium dioxide in parts by weight, heating and ultrasonically treating for 40-50 min to obtain a composite smoke-inhibiting deodorant component;
step three: adding one fourth of nano magnesium hydroxide, nano manganese dioxide, silicon carbide and nano titanium dioxide in parts by weight in the component A into the medium-temperature coal-gasified heavy oil in the component B, and carrying out mixed heating ultrasonic treatment for 40-50 min to obtain composite modified heavy oil;
step four: adding the residual nano magnesium hydroxide, nano manganese dioxide, silicon carbide and nano titanium dioxide in the component A into the polyethylene resin in the component B, mixing, heating and ultrasonically treating for 40-50 min to obtain composite modified polyethylene resin;
step five: mixing the composite smoke-inhibiting and odor-removing component prepared in the step two, the composite modified heavy oil prepared in the step three, the composite modified polyethylene resin prepared in the step four, the nano aluminum hydroxide and the nano cellulose in the step one, heating and ultrasonically treating for 70-80 min to obtain a smoke-inhibiting and odor-removing agent;
step six: heating, stirring and mixing three fifths of the smoke suppression and odor removal agent in the fifth step and the modified asphalt in the first step for 3.5-4.5 min to obtain composite modified asphalt; stirring and mixing the residual smoke-inhibiting deodorant in the step five and the aggregate in the step one for 3.5-4.5 min to obtain a composite modified aggregate; and finally, heating, stirring and mixing the composite modified asphalt, the composite modified aggregate and the lignin fiber in the step one for 45-55 s to obtain the smoke-inhibiting odorless asphalt mixture.
The heating temperature in the second step is 75 ℃, the heating temperature in the third step is 95 ℃, the heating temperature in the fourth step is 75 ℃, the heating temperature in the fifth step is 140 ℃, the heating temperature for preparing the composite modified asphalt in the sixth step is 140 ℃, and the heating temperature for the asphalt mixture in the sixth step is 170 ℃.
Example 5
Different from example 4, the heating temperature in the second step was 70 ℃, the heating temperature in the third step was 90 ℃, the heating temperature in the fourth step was 70 ℃, the heating temperature in the fifth step was 130 ℃, the heating temperature for the composite modified asphalt preparation in the sixth step was 130 ℃, and the heating temperature for the asphalt mixture in the sixth step was 165 ℃.
Example 6
Unlike examples 4 to 5, the heating temperature in the second step was 80 ℃, the heating temperature in the third step was 100 ℃, the heating temperature in the fourth step was 80 ℃, the heating temperature in the fifth step was 150 ℃, the heating temperature for the composite modified asphalt preparation in the sixth step was 150 ℃, and the heating temperature for the asphalt mixture in the sixth step was 175 ℃.
The smoke-suppressing and odorless asphalt mixtures prepared in the above examples 4 to 6 were taken to be tested with the smoke-suppressing and odorless asphalt mixture of the third control group, the smoke-suppressing and odorless asphalt mixture of the fourth control group and the smoke-suppressing and odorless asphalt mixture of the fifth control group, respectively, the smoke-suppressing and odorless asphalt mixture of the third control group was directly subjected to mixing treatment of all raw materials as compared with the examples, the smoke-suppressing and odorless asphalt mixture of the fourth control group was directly subjected to mixing treatment of all raw materials in the smoke-suppressing and deodorizing agent in the step two as compared with the examples, and the smoke-suppressing and odorless asphalt mixture of the fifth control group was directly subjected to mixing treatment of the smoke-suppressing and deodorizing agent and all remaining materials in the step six as compared with the examples; the smoke-suppressing odorless asphalt mixtures prepared in the six examples and the smoke-suppressing odorless asphalt mixtures of the three control groups were tested in seven groups of 30 samples, and the test results are shown in table two: table two:
as can be seen from table two, in the process of preparing the smoke-suppressing odorless asphalt mixture, when the preparation method in the fourth embodiment is the preferred scheme of the present invention, the ultrasonic mixing treatment is performed on part of the raw materials of the component a in the smoke-suppressing and odor-removing agent in the second step, so that the mixing effect of the raw materials can be effectively accelerated, and the raw materials are subjected to the composite modification treatment; in the third step and the fourth step, part of raw materials in the component A and part of raw materials in the component B are subjected to ultrasonic treatment, so that the combination effect of the raw materials of the component A and the raw materials of the component B can be effectively enhanced, and meanwhile, the materials in the component A are used for carrying out modification treatment on the materials in the component B, so that the performance of the smoke suppression and odor removal agent is further enhanced; and in the sixth step, part of the smoke suppression and odor removal agent is directly mixed with the asphalt, and the other part of the smoke suppression and odor removal agent is mixed with the aggregate and then is completely mixed, so that the combination effect of the asphalt and the smoke suppression and odor removal agent can be effectively enhanced, the smoke suppression and odor removal agent is ensured to be larger in distribution range and more uniform in distribution, and the smoke suppression and odor removal effect on the asphalt mixture is further ensured.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A smoke-suppressing tasteless asphalt mixture is characterized in that: comprises the following components in percentage by weight: 5.84-6.26% of modified asphalt, 0.29-0.41% of lignin fiber, 0.47-0.53% of smoke suppression and odor removal agent, and the balance of aggregate; the smoke suppression and odor removal agent comprises the following components in percentage by weight: 5.45-5.87% of the component A, and the balance of the component B; the component A comprises the following components in percentage by weight: 20.84-21.26% of nano magnesium hydroxide, 19.50-20.70% of nano manganese dioxide, 17.45-18.61% of silicon carbide, 18.56-18.88% of nano titanium dioxide and the balance of polyethylene resin; the component B comprises the following components in percentage by weight: 45.84-46.26% of medium-temperature coal-gasified heavy oil, 2.84-3.26% of nano aluminum hydroxide, 8.50-9.70% of nano cellulose and the balance of polyethylene resin.
2. The smoke-suppressing odorless asphalt mixture according to claim 1, wherein: comprises the following components in percentage by weight: 5.84% of modified asphalt, 0.29% of lignin fiber, 0.47% of smoke suppression and odor removal agent and 93.40% of aggregate; the smoke suppression and odor removal agent comprises the following components in percentage by weight: 5.45% of component A, 94.55% of component B; the component A comprises the following components in percentage by weight: 20.84% of nano magnesium hydroxide, 19.50% of nano manganese dioxide, 17.45% of silicon carbide, 18.56% of nano titanium dioxide and 23.65% of polyethylene resin; the component B comprises the following components in percentage by weight: 45.84% of medium-temperature coal-gasified heavy oil, 2.84% of nano aluminum hydroxide, 8.50% of nano cellulose and 42.82% of polyethylene resin.
3. The smoke-suppressing odorless asphalt mixture according to claim 1, wherein: comprises the following components in percentage by weight: 6.26% of modified asphalt, 0.41% of lignin fiber, 0.53% of smoke suppression and odor removal agent and 92.80% of aggregate; the smoke suppression and odor removal agent comprises the following components in percentage by weight: 5.87% of component A, 94.13% of component B; the component A comprises the following components in percentage by weight: 21.26% of nano magnesium hydroxide, 20.70% of nano manganese dioxide, 18.61% of silicon carbide, 18.88% of nano titanium dioxide and 20.55% of polyethylene resin; the component B comprises the following components in percentage by weight: 46.26 percent of medium-temperature coal-gasified heavy oil, 3.26 percent of nano aluminum hydroxide, 9.70 percent of nano cellulose and 40.78 percent of polyethylene resin.
4. The smoke-suppressing odorless asphalt mixture according to claim 1, wherein: comprises the following components in percentage by weight: 6.05% of modified asphalt, 0.35% of lignin fiber, 0.50% of smoke suppression and odor removal agent and 93.10% of aggregate; the smoke suppression and odor removal agent comprises the following components in percentage by weight: 5.66% of component A, 94.34% of component B; the component A comprises the following components in percentage by weight: 21.05% of nano magnesium hydroxide, 20.10% of nano manganese dioxide, 18.03% of silicon carbide, 18.72% of nano titanium dioxide and 22.10% of polyethylene resin; the component B comprises the following components in percentage by weight: 46.05 percent of medium-temperature coal-gasified heavy oil, 3.05 percent of nano aluminum hydroxide, 9.10 percent of nano cellulose and 41.80 percent of polyethylene resin.
5. The smoke-suppressing odorless asphalt mixture according to claim 1, wherein: the aggregate is a basalt composite material, the basalt composite material comprises a basalt fine material and a basalt coarse material, and the basalt fine material and the basalt coarse material are in a weight ratio of: 1: 1.
6. The method for preparing a smoke-suppressing odorless asphalt mixture according to any one of claims 1 to 5, wherein: the preparation method comprises the following specific steps:
the method comprises the following steps: weighing various raw materials of modified asphalt, lignin fiber, aggregate and smoke suppression and odor removal agent according to the weight percentage;
step two: preparing a smoke-inhibiting deodorant, mixing the polyethylene resin in the component A with half of nano magnesium hydroxide, nano manganese dioxide, silicon carbide and nano titanium dioxide in parts by weight, heating and ultrasonically treating for 40-50 min to obtain a composite smoke-inhibiting deodorant component;
step three: adding one fourth of nano magnesium hydroxide, nano manganese dioxide, silicon carbide and nano titanium dioxide in parts by weight in the component A into the medium-temperature coal-gasified heavy oil in the component B, and carrying out mixed heating ultrasonic treatment for 40-50 min to obtain composite modified heavy oil;
step four: adding the residual nano magnesium hydroxide, nano manganese dioxide, silicon carbide and nano titanium dioxide in the component A into the polyethylene resin in the component B, mixing, heating and ultrasonically treating for 40-50 min to obtain composite modified polyethylene resin;
step five: mixing the composite smoke-inhibiting and odor-removing component prepared in the step two, the composite modified heavy oil prepared in the step three, the composite modified polyethylene resin prepared in the step four, the nano aluminum hydroxide and the nano cellulose in the step one, heating and ultrasonically treating for 70-80 min to obtain a smoke-inhibiting and odor-removing agent;
step six: heating, stirring and mixing three fifths of the smoke suppression and odor removal agent in the fifth step and the modified asphalt in the first step for 3.5-4.5 min to obtain composite modified asphalt; stirring and mixing the residual smoke-inhibiting deodorant in the step five and the aggregate in the step one for 3.5-4.5 min to obtain a composite modified aggregate; and finally, heating, stirring and mixing the composite modified asphalt, the composite modified aggregate and the lignin fiber in the step one for 45-55 s to obtain the smoke-inhibiting odorless asphalt mixture.
7. The method for preparing the smoke-suppressing tasteless asphalt mixture according to claim 6, wherein the method comprises the following steps: the heating temperature in the second step is 70-80 ℃, the heating temperature in the third step is 90-100 ℃, the heating temperature in the fourth step is 70-80 ℃, the heating temperature in the fifth step is 130-150 ℃, the heating temperature for preparing the composite modified asphalt in the sixth step is 130-150 ℃, and the heating temperature for the asphalt mixture in the sixth step is 165-175 ℃.
8. The method for preparing the smoke-suppressing odorless asphalt mixture according to claim 7, wherein the method comprises the following steps: the heating temperature in the second step is 70 ℃, the heating temperature in the third step is 90 ℃, the heating temperature in the fourth step is 70 ℃, the heating temperature in the fifth step is 130 ℃, the heating temperature for preparing the composite modified asphalt in the sixth step is 130 ℃, and the heating temperature for the asphalt mixture in the sixth step is 165 ℃.
9. The method for preparing the smoke-suppressing odorless asphalt mixture according to claim 7, wherein the method comprises the following steps: the heating temperature in the second step is 75 ℃, the heating temperature in the third step is 95 ℃, the heating temperature in the fourth step is 75 ℃, the heating temperature in the fifth step is 140 ℃, the heating temperature for preparing the composite modified asphalt in the sixth step is 140 ℃, and the heating temperature for the asphalt mixture in the sixth step is 170 ℃.
10. The method for preparing the smoke-suppressing odorless asphalt mixture according to claim 7, wherein the method comprises the following steps: the heating temperature in the second step is 80 ℃, the heating temperature in the third step is 100 ℃, the heating temperature in the fourth step is 80 ℃, the heating temperature in the fifth step is 150 ℃, the heating temperature for preparing the composite modified asphalt in the sixth step is 150 ℃, and the heating temperature for the asphalt mixture in the sixth step is 175 ℃.
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