CN112480690A - Modified asphalt for normal-temperature construction and preparation method thereof - Google Patents
Modified asphalt for normal-temperature construction and preparation method thereof Download PDFInfo
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- CN112480690A CN112480690A CN202011202925.6A CN202011202925A CN112480690A CN 112480690 A CN112480690 A CN 112480690A CN 202011202925 A CN202011202925 A CN 202011202925A CN 112480690 A CN112480690 A CN 112480690A
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- 239000010426 asphalt Substances 0.000 title claims abstract description 124
- 238000010276 construction Methods 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims description 8
- 239000000463 material Substances 0.000 claims abstract description 47
- 229920005989 resin Polymers 0.000 claims abstract description 43
- 239000011347 resin Substances 0.000 claims abstract description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000003208 petroleum Substances 0.000 claims abstract description 29
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims abstract description 27
- 239000002904 solvent Substances 0.000 claims abstract description 16
- 239000003125 aqueous solvent Substances 0.000 claims abstract description 15
- 239000003822 epoxy resin Substances 0.000 claims abstract description 15
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 15
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 15
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 15
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims abstract description 14
- 239000001110 calcium chloride Substances 0.000 claims abstract description 14
- 229910001628 calcium chloride Inorganic materials 0.000 claims abstract description 14
- 150000007942 carboxylates Chemical class 0.000 claims abstract description 14
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 14
- 229920001971 elastomer Polymers 0.000 claims abstract description 14
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 14
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 14
- 239000004816 latex Substances 0.000 claims abstract description 14
- 229920000126 latex Polymers 0.000 claims abstract description 14
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 14
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 14
- 239000005060 rubber Substances 0.000 claims abstract description 14
- 239000003381 stabilizer Substances 0.000 claims abstract description 14
- 239000004094 surface-active agent Substances 0.000 claims abstract description 14
- 239000004698 Polyethylene Substances 0.000 claims abstract description 13
- -1 polyethylene Polymers 0.000 claims abstract description 13
- 229920000573 polyethylene Polymers 0.000 claims abstract description 13
- 229920000459 Nitrile rubber Polymers 0.000 claims abstract description 6
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 16
- 229920001577 copolymer Polymers 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000005086 pumping Methods 0.000 claims description 6
- 239000011265 semifinished product Substances 0.000 claims description 6
- 238000010008 shearing Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 125000003118 aryl group Chemical group 0.000 claims description 2
- 239000008236 heating water Substances 0.000 claims description 2
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 12
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 229920006223 adhesive resin Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000001935 peptisation Methods 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/16—Halogen-containing compounds
- C08K2003/162—Calcium, strontium or barium halides, e.g. calcium, strontium or barium chloride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses modified asphalt for normal temperature construction, which consists of 45-70 parts by weight of asphalt base material and 30-55 parts by weight of water solvent, wherein the asphalt base material comprises 28-30 parts by weight of aromatic hydrocarbon thermoplastic petroleum resin, 30-35 parts by weight of aromatic hydrocarbon petroleum rubber oil, 0.5-2.5 parts by weight of polyethylene modified resin, 0.5-5 parts by weight of ethylene-vinyl acetate copolymer modified resin, 2-8 parts by weight of butadiene-acrylonitrile copolymer latex and 0.1-5 parts by weight of epoxy resin cross-linking agent; the aqueous solvent comprises 1-5 parts by weight of carboxylate asphalt emulsifier, 0.5-4 parts by weight of polyacrylamide surfactant, 0.1-2 parts by weight of pH value regulator, 0.05-0.5 part by weight of calcium chloride inorganic stabilizer and 30-45 parts by weight of water, and compared with other existing permeable asphalt mixtures constructed at normal temperature, the aqueous solvent has the advantages that all indexes reach or exceed relevant standards, and the pavement performance is stable, the temperature sensitivity is better and the viscosity and toughness are higher.
Description
Technical Field
The invention relates to the field of road paving materials, in particular to modified asphalt for normal-temperature construction and a preparation method thereof.
Background
Along with the continuous deepening of sponge city construction work, the permeable asphalt pavement has more and more extensive application. At present, the construction of the permeable asphalt pavement is mainly carried out at high temperature, and the method has the environmental protection defects of high energy consumption during mixing, overflow of harmful organic waste gas, volatilization of a large amount of pungent gas during paving and rolling and the like, so that various permeable asphalts constructed at normal temperature appear.
The existing adhesive for the permeable asphalt mixture constructed at normal temperature is an adhesive, polyurethane or epoxy resin is usually used as a base material, a modifier such as plasticizing agent is added, the viscosity is high during construction, the requirements on the powder content and the water content of aggregate are high, the pavement after construction is closer to rigidity and poor in weather resistance, and the problem that the pavement performance cannot meet the use requirements due to the fact that parameters such as the cohesive force, the temperature sensing index, the dynamic viscosity, the Marshall stability, the soaking residual stability, the freezing and thawing residual stability, the dynamic stability and the like do not reach the standard generally exists.
Therefore, a new modified asphalt for a permeable asphalt pavement, which is constructed at normal temperature, is required to solve the above problems.
Disclosure of Invention
The invention aims to provide a new technical scheme of permeable asphalt for normal-temperature construction.
According to the first aspect of the invention, the modified asphalt for normal temperature construction is provided, and comprises 45-70 parts by weight of asphalt base material and 30-55 parts by weight of water solvent, wherein the asphalt base material comprises 28-30 parts by weight of aromatic hydrocarbon thermoplastic petroleum resin, 30-35 parts by weight of aromatic hydrocarbon petroleum rubber oil, 0.5-2.5 parts by weight of polyethylene modified resin, 0.5-5 parts by weight of ethylene-vinyl acetate copolymer modified resin, 2-8 parts by weight of butylbenzene-butyronitrile copolymer latex and 0.1-5 parts by weight of epoxy resin cross-linking agent; the hydrosolvent comprises 1-5 parts by weight of carboxylate asphalt emulsifier, 0.5-4 parts by weight of polyacrylamide surfactant, 0.1-2 parts by weight of pH value regulator, 0.05-0.5 part by weight of calcium chloride inorganic stabilizer and 30-45 parts by weight of water.
Preferably, the weight part of the asphalt base material is 55-60 parts, and the weight part of the aqueous solvent is 40-45 parts.
Preferably, the aromatic hydrocarbon thermoplastic petroleum resin, the aromatic hydrocarbon petroleum rubber oil, the polyethylene modified resin, the ethylene-vinyl acetate copolymer modified resin, the butylbenzene-butyronitrile copolymer latex and the epoxy resin cross-linking agent in the asphalt base material are 23-25 parts, 24-30 parts, 1-2 parts, 1-3 parts, 3-5 parts and 0.5-1 part, respectively.
Preferably, the carboxylate asphalt emulsifier in the aqueous solvent is 2-4 parts, the polyacrylamide surfactant is 1-2 parts, the pH regulator is 0.5-1 part, the calcium chloride inorganic stabilizer is 0.1-0.2 part, and the water is 35-40 parts.
According to a second aspect of the present invention, there is provided a method for preparing the modified asphalt for normal temperature construction, comprising the steps of:
the method comprises the following steps: respectively preparing an asphalt base material and a hydrosolvent, mixing the raw materials and heating to 160 ℃ when preparing the asphalt base material, and continuously stirring and stirring uniformly; heating the hydrosolvent to 50-60 ℃ when preparing the hydrosolvent, and stirring for 20-30 minutes at a constant temperature;
step two: pumping the uniformly mixed asphalt base material in the step one to a shearing mill, grinding the uniformly mixed asphalt base material to 2 microns, and cooling the uniformly mixed asphalt base material for later use; pumping the hydrosolvent into a semi-finished product container to be cooled to 20-30 ℃ for later use;
step three: and D, adding the asphalt base material ground in the step two into the water solvent according to the weight ratio, and uniformly stirring.
Preferably, when the asphalt base material of the first step is prepared, the aromatic hydrocarbon-based petroleum rubber oil is stirred and heated to 160 ℃, the aromatic hydrocarbon-based thermoplastic petroleum resin is added according to the weight part, the temperature is kept to be not lower than 155 ℃, the stirring is carried out for 20-30 minutes, then the polyethylene modified resin, the ethylene-vinyl acetate copolymer modified resin, the butadiene-acrylonitrile copolymer latex and the epoxy resin cross-linking agent are added according to the weight part, and the stirring is carried out for 15-20 minutes in the environment with the temperature of not lower than 155 ℃.
Preferably, when the aqueous solvent in the first step is prepared, water is heated to 50-60 ℃, a carboxylate asphalt emulsifier and a polyacrylamide surfactant are added according to parts by weight, the water temperature is kept at 50-60 ℃, the mixture is stirred for 20-30 minutes, and then a pH value regulator and a calcium chloride inorganic stabilizer are added according to parts by weight, and the mixture is stirred uniformly.
Preferably, in the second step, the water solvent is pumped into the shear mill for mixing for 0.5-1 minute before being pumped into the semi-finished container.
Preferably, in the second step, when the water solvent is pumped into the semi-finished product container, the temperature of the pumped water solvent is kept at 70-80 ℃.
According to one embodiment of the disclosure, compared with the production of the permeable asphalt mixture by a hot-mixing method, the method is ecological, environment-friendly, zero-emission and low in energy consumption; the method is suitable for any normal-temperature construction with the environment temperature higher than 0 ℃ and is suitable for multiple lightering construction of small area; for the color permeable asphalt mixture, the color is more stable because no hot processing is needed;
compared with other existing permeable asphalt mixtures constructed at normal temperature, the permeable asphalt mixture has the advantages that all indexes reach or exceed the standards of the traditional asphalt pavement, and the pavement has stable performance, better temperature sensitivity and higher toughness.
Other features of the present invention and its advantages will become apparent from the following detailed description of exemplary embodiments of the invention.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
Example one
The modified asphalt for normal temperature construction in the embodiment comprises 45-70 parts by weight of asphalt base material and 30-55 parts by weight of water solvent, wherein the asphalt base material comprises 28-30 parts by weight of aromatic hydrocarbon thermoplastic petroleum resin, 30-35 parts by weight of aromatic hydrocarbon petroleum rubber oil, 0.5-2.5 parts by weight of polyethylene modified resin, 0.5-5 parts by weight of ethylene-vinyl acetate copolymer modified resin, 2-8 parts by weight of butadiene-acrylonitrile copolymer latex and 0.1-5 parts by weight of epoxy resin cross-linking agent; the hydrosolvent comprises 1-5 parts by weight of carboxylate asphalt emulsifier, 0.5-4 parts by weight of polyacrylamide surfactant, 0.1-2 parts by weight of pH value regulator, 0.05-0.5 part by weight of calcium chloride inorganic stabilizer and 30-45 parts by weight of water.
In the embodiment, the aromatic thermoplastic petroleum resin has good plasticity and adhesiveness, plays a role in peptization and improves the stability of the structure; the aromatic hydrocarbon petroleum rubber oil and the aromatic hydrocarbon thermoplastic petroleum resin have better affinity and better contribution degree in the aspects of viscoelasticity and penetration; the polyethylene modified resin, the ethylene-vinyl acetate copolymer modified resin, the butadiene-acrylonitrile copolymer latex and the epoxy resin cross-linking agent ensure that the modified asphalt has better viscosity, penetration degree and softening point, and improve the high-temperature and low-temperature performance of the base material.
The carboxylate asphalt emulsifier reduces the free energy of the interface between the asphalt base material and water, so that the tiny particles of the asphalt base material are stably dispersed in the water solvent to form a stable solution; the polyacrylamide surfactant, the pH value regulator and the calcium chloride inorganic stabilizer improve the stability and the storage performance of the water solvent. The hydrosolvent prepared by the materials can be used for welding the asphalt base material, so that the construction of the permeable asphalt in a normal temperature environment is ensured.
Example two
In this embodiment, the aromatic hydrocarbon thermoplastic petroleum resin, the aromatic hydrocarbon petroleum rubber oil, the polyethylene modified resin, the ethylene-vinyl acetate copolymer modified resin, the butylbenzene-butyronitrile copolymer latex and the epoxy resin crosslinking agent in the asphalt base material are 28 parts, 30 parts, 0.5 part, 0.1 part and 0.1 part, respectively.
The carboxylate asphalt emulsifier in the aqueous solvent is 1 part, the polyacrylamide surfactant is 0.5 part, the pH regulator is 0.1 part, the calcium chloride inorganic stabilizer is 0.0.5 parts, and the water is 30 parts.
Compared with the common asphalt pavement and the existing permeable asphalt pavement, the permeable asphalt pavement paved by the modified asphalt for the permeable asphalt pavement of the embodiment has the following performance comparison of various parameters as shown in the following table:
table 1: comparison of the Performance parameters of the permeable asphalt pavement of the embodiment with those of the ordinary asphalt pavement and the existing permeable asphalt pavement
Therefore, compared with the method for producing the permeable asphalt mixture by the hot mixing method, the pavement paved by the modified asphalt for normal-temperature construction in the embodiment is ecological, environment-friendly, zero-emission and low in energy consumption; the method is suitable for any normal-temperature construction with the environment temperature higher than 0 ℃ and is suitable for multiple lightering construction of small area; for the color permeable asphalt mixture, the color is more stable because no hot processing is needed;
compared with other existing permeable asphalt mixtures constructed at normal temperature, the permeable asphalt mixture has the advantages that all indexes reach or exceed relevant standards, and the pavement has stable performance, better temperature sensitivity and higher viscosity and toughness.
EXAMPLE III
In this embodiment, the asphalt base material comprises 23 parts of the aromatic hydrocarbon thermoplastic petroleum resin, 24 parts of the aromatic hydrocarbon petroleum rubber oil, 1 part of the polyethylene modified resin, 1 part of the ethylene-vinyl acetate copolymer modified resin, 3 parts of the butylbenzene-butyronitrile copolymer latex and 0.5 part of the epoxy resin crosslinking agent.
The carboxylate asphalt emulsifier in the aqueous solvent is 2 parts, the polyacrylamide surfactant is 1 part, the pH regulator is 0.5 part, the calcium chloride inorganic stabilizer is 0.1 part, and the water is 35 parts.
Compared with the common asphalt pavement and the existing permeable asphalt pavement, the permeable asphalt pavement paved by the modified asphalt for the permeable asphalt pavement of the embodiment has the following performance comparison of various parameters as shown in the following table:
table 1: comparison of the Performance parameters of the permeable asphalt pavement of the embodiment with those of the ordinary asphalt pavement and the existing permeable asphalt pavement
Example four
In this or other embodiments, the aromatic hydrocarbon thermoplastic petroleum resin, the aromatic hydrocarbon petroleum rubber oil, the polyethylene modified resin, the ethylene-vinyl acetate copolymer modified resin, the styrene-butadiene-acrylonitrile copolymer latex and the epoxy resin crosslinking agent are respectively 25 parts, 30 parts, 2 parts, 3 parts, 5 parts and 1 part, respectively, in the asphalt base material.
The carboxylate asphalt emulsifier in the aqueous solvent is 4 parts, the polyacrylamide surfactant is 2 parts, the pH regulator is 1 part, the calcium chloride inorganic stabilizer is 0.2 part, and the water is 40 parts.
Compared with the common asphalt pavement and the existing permeable asphalt pavement, the permeable asphalt pavement paved by the modified asphalt for normal-temperature construction of the embodiment has the following performance comparison of various parameters as shown in the following table:
table 1: comparison of the Performance parameters of the permeable asphalt pavement of the embodiment with those of the ordinary asphalt pavement and the existing permeable asphalt pavement
EXAMPLE five
In this embodiment, the asphalt base material comprises 30 parts of the aromatic hydrocarbon thermoplastic petroleum resin, 35 parts of the aromatic hydrocarbon petroleum rubber oil, 2.5 parts of the polyethylene modified resin, 5 parts of the ethylene-vinyl acetate copolymer modified resin, 8 parts of the styrene butadiene acrylonitrile copolymer latex and 5 parts of the epoxy resin crosslinking agent.
5 parts of carboxylate asphalt emulsifier, 4 parts of polyacrylamide surfactant, 2 parts of pH regulator, 0.5 part of calcium chloride inorganic stabilizer and 45 parts of water in the aqueous solvent.
Compared with the common asphalt pavement and the existing permeable asphalt pavement, the permeable asphalt pavement paved by the modified asphalt for normal-temperature construction of the embodiment has the following performance comparison of various parameters as shown in the following table:
table 1: comparison of the Performance parameters of the permeable asphalt pavement of the embodiment with those of the ordinary asphalt pavement and the existing permeable asphalt pavement
EXAMPLE six
The preparation method of the modified asphalt for the permeable asphalt pavement comprises the following steps:
the method comprises the following steps: preparing an asphalt base material and a water solvent, mixing the raw materials, heating to 160 ℃, and continuously stirring uniformly when preparing the asphalt base material; heating the hydrosolvent to 50-60 ℃ when preparing the hydrosolvent, and stirring for 20-30 minutes at a constant temperature;
in the step, when the asphalt base material is prepared, the aromatic hydrocarbon-based petroleum rubber oil is stirred and heated to 160 ℃, the aromatic hydrocarbon-based thermoplastic petroleum resin is added according to the weight part, the temperature is kept to be not lower than 155 ℃, the stirring is carried out for 20-30 minutes, then the polyethylene modified resin, the ethylene-vinyl acetate copolymer modified resin, the butadiene-acrylonitrile butadiene-styrene copolymer latex and the epoxy resin cross-linking agent are added according to the weight part, the stirring is carried out for 15-20 minutes in the environment that the temperature is not lower than 155 ℃, and the base material viscosity is ensured to be lower than 6.0, so that the base material has good fluidity and mixing performance.
When the hydrosolvent is prepared, heating water to 50-60 ℃, adding the carboxylate asphalt emulsifier and the polyacrylamide surfactant according to parts by weight, keeping the water temperature at 50-60 ℃, stirring for 20-30 minutes, then adding the pH value regulator and the calcium chloride inorganic stabilizer according to parts by weight, stirring uniformly, and ensuring that the activity of the hydrosolvent corresponding to the asphalt base material reaches an optimal value.
Step two: pumping the uniformly mixed asphalt base material in the step one to a shearing mill, grinding the uniformly mixed asphalt base material to 2 microns and cooling the uniformly mixed asphalt base material for later use; pumping the hydrosolvent into a semi-finished product container to be cooled to 20-30 ℃;
in the step, before the water solvent is pumped into the semi-finished product container, the water solvent is pumped into a shearing mill to be mixed for 0.5-1 minute, then the temperature of the pumped water solvent is kept at 70-80 ℃, and the water solvent is output into the semi-finished product container.
Through the above steps, the preparation work of the modified asphalt for normal temperature construction in the present embodiment has been completed.
When the modified asphalt for normal-temperature construction is used, the asphalt base material ground in the step two is added into the hydrosolvent at normal temperature according to the weight ratio, the preparation of the modified asphalt can be completed by uniformly stirring, and the modified asphalt can be paved on a road surface at normal temperature for construction.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (9)
1. The modified asphalt for normal-temperature construction comprises 45-70 parts by weight of asphalt base material and 30-55 parts by weight of water solvent, and is characterized in that the asphalt base material comprises 28-30 parts by weight of aromatic thermoplastic petroleum resin, 30-35 parts by weight of aromatic hydrocarbon petroleum rubber oil, 0.5-2.5 parts by weight of polyethylene modified resin, 0.5-5 parts by weight of ethylene-vinyl acetate copolymer modified resin, 2-8 parts by weight of butadiene-acrylonitrile copolymer latex and 0.1-5 parts by weight of epoxy resin cross-linking agent; the hydrosolvent comprises 1-5 parts by weight of carboxylate asphalt emulsifier, 0.5-4 parts by weight of polyacrylamide surfactant, 0.1-2 parts by weight of pH value regulator, 0.05-0.5 part by weight of calcium chloride inorganic stabilizer and 30-45 parts by weight of water.
2. The modified asphalt for normal temperature construction as claimed in claim 1, wherein the asphalt base material is 55 to 60 parts by weight, and the aqueous solvent is 40 to 45 parts by weight.
3. The modified asphalt for normal temperature construction as claimed in claim 2, wherein the asphalt base material comprises 23 to 25 parts of the aromatic hydrocarbon thermoplastic petroleum resin, 24 to 30 parts of the aromatic hydrocarbon petroleum rubber oil, 1 to 2 parts of the polyethylene modified resin, 1 to 3 parts of the ethylene-vinyl acetate copolymer modified resin, 3 to 5 parts of the butylbenzene butyronitrile copolymer latex, and 0.5 to 1 part of the epoxy resin crosslinking agent.
4. The modified asphalt for normal temperature construction according to claim 2, wherein the aqueous solvent contains 2 to 4 parts of the carboxylate asphalt emulsifier, 1 to 2 parts of the polyacrylamide surfactant, 0.5 to 1 part of the pH regulator, 0.1 to 0.2 part of the calcium chloride inorganic stabilizer, and 35 to 40 parts of water.
5. A preparation method of the modified asphalt for normal temperature construction as claimed in claims 1 to 4, characterized by comprising the following steps:
the method comprises the following steps: respectively preparing an asphalt base material and a hydrosolvent, mixing the raw materials and heating to 160 ℃ when preparing the asphalt base material, and continuously stirring and stirring uniformly; heating the hydrosolvent to 50-60 ℃ when preparing the hydrosolvent, and stirring for 20-30 minutes at a constant temperature;
step two: pumping the uniformly mixed asphalt base material in the step one to a shearing mill, grinding the uniformly mixed asphalt base material to 2 microns, and cooling the uniformly mixed asphalt base material for later use; pumping the hydrosolvent into a semi-finished product container to be cooled to 20-30 ℃ for later use;
step three: and D, adding the asphalt base material ground in the step two into the water solvent according to the weight ratio, and uniformly stirring.
6. The method of claim 5, wherein the preparation of the asphalt base material in the first step comprises stirring and heating the aromatic hydrocarbon-based petroleum rubber oil to 160 ℃, adding the aromatic hydrocarbon-based thermoplastic petroleum resin in parts by weight, stirring at a temperature of not less than 155 ℃ for 20-30 minutes, adding the polyethylene-modified resin, the ethylene-vinyl acetate copolymer-modified resin, the styrene-butadiene-acrylonitrile copolymer latex and the epoxy resin crosslinking agent in parts by weight, and stirring at a temperature of not less than 155 ℃ for 15-20 minutes.
7. The method for preparing modified asphalt for normal temperature construction as claimed in claim 5, wherein the aqueous solvent in the first step is prepared by heating water to 50-60 ℃, adding carboxylate asphalt emulsifier and polyacrylamide surfactant in parts by weight, stirring for 20-30 minutes in an environment of 50-60 ℃ while maintaining water temperature, then adding pH regulator and calcium chloride inorganic stabilizer in parts by weight, and stirring uniformly.
8. The method for preparing modified asphalt for normal temperature construction as claimed in claim 7, wherein in the second step, the aqueous solvent is pumped into a shearing mill for mixing for 0.5-1 min before being pumped into the semi-finished container.
9. The method of claim 8, wherein in the second step, the temperature of the pumped aqueous solvent is maintained at 70-80 ℃ when the aqueous solvent is pumped into the semi-finished container.
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| CN202011202925.6A CN112480690A (en) | 2020-11-02 | 2020-11-02 | Modified asphalt for normal-temperature construction and preparation method thereof |
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| CN202011202925.6A CN112480690A (en) | 2020-11-02 | 2020-11-02 | Modified asphalt for normal-temperature construction and preparation method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1396213A (en) * | 2002-06-10 | 2003-02-12 | 中油销售江苏公司兴能沥青厂 | Polymer emulsified and re-cross-linked asphalt colloid mixture and its preparing process |
| CN101475748A (en) * | 2009-01-20 | 2009-07-08 | 钦兰成 | High strength cold state asphalt fissure cementation water-proof glue and preparation thereof |
| CN105111756A (en) * | 2015-09-22 | 2015-12-02 | 长安大学 | High-viscosity modified pitch additive as well as preparation method and application thereof |
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2020
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1396213A (en) * | 2002-06-10 | 2003-02-12 | 中油销售江苏公司兴能沥青厂 | Polymer emulsified and re-cross-linked asphalt colloid mixture and its preparing process |
| CN101475748A (en) * | 2009-01-20 | 2009-07-08 | 钦兰成 | High strength cold state asphalt fissure cementation water-proof glue and preparation thereof |
| CN105111756A (en) * | 2015-09-22 | 2015-12-02 | 长安大学 | High-viscosity modified pitch additive as well as preparation method and application thereof |
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Application publication date: 20210312 |