CN111847978B - High-viscosity modified asphalt for water-permeable pavement and preparation method thereof - Google Patents
High-viscosity modified asphalt for water-permeable pavement and preparation method thereof Download PDFInfo
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- CN111847978B CN111847978B CN202010795903.9A CN202010795903A CN111847978B CN 111847978 B CN111847978 B CN 111847978B CN 202010795903 A CN202010795903 A CN 202010795903A CN 111847978 B CN111847978 B CN 111847978B
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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
- 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
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00284—Materials permeable to liquids
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/10—Mortars, concrete or artificial stone characterised by specific physical values for the viscosity
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Abstract
The invention relates to a high viscosity modified asphalt for a water permeable pavement, which comprises the following components: a first component that is asphalt; a second component which is a filler particle having a porous structure; a third component which is a colorless cementitious material; and the second component and the third component are uniformly mixed and then dispersed into the first component. According to the technical scheme, the asphalt is modified by the pervious concrete and the colorless cementing material, so that the water permeability of the asphalt can be improved.
Description
Technical Field
The invention relates to an asphalt material, in particular to high-viscosity modified asphalt for a water-permeable pavement and a preparation method thereof.
Background
Bitumen is a viscous, black and highly viscous liquid or semi-solid that is present in most crude oils and some natural deposits. Bitumen can also be obtained by refining, one method being the residue of elaborate refining from the decomposition of selected crude oils.
Asphalt binder is a key material for road surface, roof and water-proof applications, and the main application of asphalt in our country is in road construction, and the most common type of flexible pavement in our country is hot mix asphalt.
Bitumen cannot generally be used directly due to its physical properties, and it needs to be modified. The modified asphalt is an asphalt binder prepared by adding external additives (modifiers) such as rubber, resin, high molecular polymer, ground rubber powder or other fillers or by adopting measures such as mild oxidation processing of the asphalt and the like to improve the performance of the asphalt or asphalt mixture.
The water permeable pavement needs the modified asphalt with ever-high viscosity, and no asphalt meeting the requirement is available at present.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide high-viscosity modified asphalt for a water-permeable pavement and a preparation method thereof.
The technical scheme of the invention is as follows:
a high viscosity modified asphalt for water permeable pavement, comprising:
a first component that is asphalt;
a second component which is a filler particle having a porous structure;
a third component which is a colorless cementitious material;
and the second component and the third component are uniformly mixed and then dispersed into the first component.
Further, the second component is porous concrete particles.
Further, the porous concrete granules include outer impermeable concrete, inner permeable concrete, and one or more through holes extending from the impermeable concrete surface to the permeable concrete interior.
Further, the colorless cementing material is prepared by mixing base oil, petroleum resin, a styrene thermoplastic elastomer and a silane coupling agent according to the ratio of 1:1:1: 1.
A preparation method of high-viscosity modified asphalt for a water-permeable pavement is characterized by comprising the following steps:
s1, preparing a first component, namely heating the asphalt to 190 ℃ through a heat exchanger, and transferring the asphalt into a stirring production tank;
s2, preparing a second component,
s21, preparing raw materials by using the existing concrete block, specifically:
s211, selecting waste concrete blocks, adding the waste concrete blocks into a high-temperature furnace, and continuously treating for 30-45 minutes at the temperature of 120-;
s212, placing the waste concrete blocks processed in the previous step into a stirrer, continuously introducing high-pressure air into the stirrer, and smashing the waste concrete blocks inside to obtain waste concrete powder;
s22, preparing the pervious concrete, specifically:
s231, putting 30-50 parts of waste gas concrete powder, 5-10 parts of water glass, 5-10 parts of fine aluminum powder, 5-10 parts of bentonite, 5-10 parts of gypsum, 5-10 parts of quicklime and 20-30 parts of fine river sand into a stirrer for fully stirring to form a mixture;
s232, mixing and stirring the mixture and water according to a weight ratio of 1: 0.3-0.5 in parts by weight, and pouring the mixture into a spherical mold to form a porous concrete prefabricated body;
s233, adding dry ice into the porous concrete prefabricated body in the mold, stirring the dry ice into the porous concrete prefabricated body, covering the mold tightly, and drying the mold to form porous concrete;
s23, preparing the waterproof concrete, specifically:
s231, according to the total weight fraction, fully stirring and mixing 30-50 parts of cement, 10-25 parts of sand, 5-10 parts of fly ash, 5-10 parts of fine river sand, 5-10 parts of polycarboxylic acid water reducing agent, 5-10 parts of Portland cement and 30-40 parts of water, and pouring the mixture outside pervious concrete to form an outer layer of the impervious concrete;
s232, after drying, drilling a plurality of through holes in the surface of the impervious concrete through drilling equipment;
s24, preparing a third component:
mixing base oil, petroleum resin, a styrene thermoplastic elastomer and a silane coupling agent according to the ratio of 1:1:1: 1;
s25, asphalt preparation:
and uniformly mixing the second component and the third component to form a mixture, and putting the mixture and the first component into a stirrer for molding.
Further, the specific method for asphalt molding comprises the following steps: the prepared asphalt is put into a high-speed stirrer and dispersed at a high speed of 7000-.
Further, in the second component, the diameter of the pervious concrete is 6-8mm, and the thickness of the impervious concrete is 2-4 mm.
Furthermore, the diameter of the through hole is 1-2 mm.
Further, the specific step in the step S1 is to mix the asphalt with the ultraviolet absorbent and the dispersant, heat the mixture to 190 ℃ through a heat exchanger, and transfer the mixture to the stirring production tank.
Further, the ultraviolet absorbent is an ultraviolet absorbent UV-1164, the dispersing agent is microcrystalline paraffin, the mass ratio of the ultraviolet absorbent UV-1164 to the microcrystalline paraffin is 1:1, and the ultraviolet absorbent UV-1164 and the microcrystalline paraffin account for 0.5% of the total mass of the asphalt.
By the scheme, the invention at least has the following advantages:
the technical scheme of the invention is to modify asphalt by pervious concrete and colorless cementing materials. The pervious concrete is added into the asphalt and can be evenly mixed into the asphalt, the pervious concrete has high strength due to the fact that the exterior of the pervious concrete is muddy south concrete with high structural strength, the interior of the pervious concrete is porous concrete, the pervious concrete has good water permeability, and the weight of the interior of the pervious concrete is reduced due to the fact that the interior of the pervious concrete is porous.
The colorless cementing material added in the invention can form asphalt into an organic whole, so that the structural strength of the asphalt is increased, the colorless cementing material also has certain stretching capacity, the asphalt can be ensured to have higher structural strength when the shape and the structure of the asphalt are changed, and the service life of the asphalt can be prolonged.
When the first component of the asphalt is prepared, the ultraviolet absorbent is added, so that the high-temperature stability and the ageing resistance of the asphalt material can be obviously improved.
The foregoing is a summary of the present invention, and in order to provide a clear understanding of the technical means of the present invention and to be implemented in accordance with the present specification, the following is a detailed description of the preferred embodiments of the present invention.
Detailed Description
The following examples are given to further illustrate the embodiments of the present invention. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
A high viscosity modified asphalt for water permeable pavement, comprising:
a first component that is asphalt;
a second component which is a filler particle having a porous structure;
a third component which is a colorless cementitious material;
and the second component and the third component are uniformly mixed and then dispersed into the first component.
The second component is porous concrete particles.
The porous concrete particles include outer impermeable concrete, inner permeable concrete, and one or more through-holes extending from the impermeable concrete surface to the permeable concrete interior.
The colorless cementing material is prepared by mixing base oil, petroleum resin, a styrene thermoplastic elastomer and a silane coupling agent according to the ratio of 1:1:1: 1.
In the second component, the diameter of the pervious concrete is 6-8mm, and the thickness of the impervious concrete is 2-4 mm.
The diameter of the through hole is 1-2 mm.
The specific preparation process of the present invention is described in the following examples.
Example 1
Preparing a first component, namely mixing the asphalt with an ultraviolet absorbent and a dispersing agent, heating the mixture to 180 ℃ through a heat exchanger, transferring the mixture to a stirring production tank, and transferring the mixture to the stirring production tank; the preparation of the second component, namely preparing raw materials by utilizing the existing concrete block, specifically comprising the following steps: selecting waste concrete blocks, adding the waste concrete blocks into a high-temperature furnace, and continuously treating for 35 minutes at 130 ℃; putting the waste concrete blocks treated in the previous step into a stirrer, continuously introducing high-pressure air into the stirrer, and smashing the waste concrete blocks in the stirrer to obtain waste concrete powder; the preparation of the pervious concrete comprises the following steps: putting 40 parts of waste gas concrete powder, 8 parts of water glass, 8 parts of fine aluminum powder, 8 parts of bentonite, 8 parts of gypsum, 8 parts of quicklime and 25 parts of fine river sand into a stirrer for fully stirring to form a mixture; according to the weight percentage, mixing and stirring the mixture and water according to the weight ratio of 1:0.4, and pouring the mixture into a spherical mould to form a porous concrete prefabricated body; adding dry ice into the porous concrete prefabricated body in the mold, stirring the dry ice into the porous concrete prefabricated body, tightly covering the mold, and drying the mold to form porous concrete; the preparation of the waterproof concrete comprises the following steps: according to the total weight fraction, 40 parts of cement, 20 parts of sand, 8 parts of fly ash, 8 parts of fine river sand, 8 parts of polycarboxylic acid water reducing agent, 8 parts of Portland cement and 35 parts of water are fully stirred and mixed, and then poured outside pervious concrete to form an outer layer of the impervious concrete; after drying, drilling a plurality of through holes on the surface of the waterproof concrete through drilling equipment; preparation of a third component: mixing base oil, petroleum resin, a styrene thermoplastic elastomer and a silane coupling agent according to the ratio of 1:1:1: 1; preparing asphalt: the second component and the third component are uniformly mixed to form a mixture, and the mixture and the first component are placed into a stirrer for molding, wherein the specific method comprises the following steps: and (3) putting the prepared asphalt into a high-speed stirrer, dispersing at a high speed of 12000rpm for 40min at 190 ℃, and stirring at a low speed of 500rpm for 30min at 180 ℃ to uniformly mix to obtain the modified asphalt.
Example 2
Preparing a first component, namely mixing the asphalt with an ultraviolet absorbent and a dispersing agent, heating the mixture to 170 ℃ through a heat exchanger, transferring the mixture to a stirring production tank, and transferring the mixture to the stirring production tank; the preparation of the second component, namely preparing raw materials by utilizing the existing concrete block, specifically comprising the following steps: selecting waste concrete blocks, adding the waste concrete blocks into a high-temperature furnace, and continuously treating for 30 minutes at 120 ℃; putting the waste concrete blocks treated in the previous step into a stirrer, continuously introducing high-pressure air into the stirrer, and smashing the waste concrete blocks in the stirrer to obtain waste concrete powder; the preparation of the pervious concrete comprises the following steps: according to the weight percentage, 30 parts of waste gas concrete powder, 5 parts of water glass, 5 parts of fine aluminum powder, 5 parts of bentonite, 5 parts of gypsum, 5 parts of quicklime and 20 parts of fine river sand are put into a stirrer to be fully stirred to form a mixture; according to the weight percentage, mixing and stirring the mixture and water according to the weight ratio of 1:0.3, and pouring the mixture into a spherical mould to form a porous concrete prefabricated body; adding dry ice into the porous concrete prefabricated body in the mold, stirring the dry ice into the porous concrete prefabricated body, tightly covering the mold, and drying the mold to form porous concrete; the preparation of the waterproof concrete comprises the following steps: according to the total weight fraction, 30 parts of cement, 10 parts of sand, 5 parts of fly ash, 5 parts of fine river sand, 5 parts of polycarboxylic acid water reducing agent, 5 parts of Portland cement and 30-40 parts of water are fully stirred and mixed, and then poured outside the pervious concrete to form an outer layer of the impervious concrete; after drying, drilling a plurality of through holes on the surface of the waterproof concrete through drilling equipment; preparation of a third component: mixing base oil, petroleum resin, a styrene thermoplastic elastomer and a silane coupling agent according to the ratio of 1:1:1: 1; preparing asphalt: the second component and the third component are uniformly mixed to form a mixture, and the mixture and the first component are placed into a stirrer for molding, wherein the specific method comprises the following steps: and (3) putting the prepared asphalt into a high-speed stirrer, dispersing at 180 ℃ at a high speed of 7000rpm for 10min, and stirring at 150 ℃ at a low speed of 100rpm for 10min to uniformly mix to obtain the modified asphalt.
Example 3
Preparing a first component, namely mixing the asphalt with an ultraviolet absorbent and a dispersing agent, heating the mixture to 190 ℃ through a heat exchanger, transferring the mixture into a stirring production tank, and transferring the mixture into the stirring production tank; the preparation of the second component, namely preparing raw materials by utilizing the existing concrete block, specifically comprising the following steps: selecting waste concrete blocks, adding the waste concrete blocks into a high-temperature furnace, and continuously treating for 45 minutes at 150 ℃; putting the waste concrete blocks treated in the previous step into a stirrer, continuously introducing high-pressure air into the stirrer, and smashing the waste concrete blocks in the stirrer to obtain waste concrete powder; the preparation of the pervious concrete comprises the following steps: according to the weight percentage, 50 parts of waste gas concrete powder, 10 parts of water glass, 10 parts of fine aluminum powder, 10 parts of bentonite, 10 parts of gypsum, 10 parts of quicklime and 30 parts of fine river sand are put into a stirrer to be fully stirred to form a mixture; according to the weight percentage, mixing and stirring the mixture and water according to the weight ratio of 1:0.5, and pouring the mixture into a spherical mould to form a porous concrete prefabricated body; adding dry ice into the porous concrete prefabricated body in the mold, stirring the dry ice into the porous concrete prefabricated body, tightly covering the mold, and drying the mold to form porous concrete; the preparation of the waterproof concrete comprises the following steps: according to the total weight fraction, 50 parts of cement, 25 parts of sand, 10 parts of fly ash, 10 parts of fine river sand, 10 parts of polycarboxylic acid water reducing agent, 10 parts of Portland cement and 40 parts of water are fully stirred and mixed, and then poured outside pervious concrete to form an outer layer of the impervious concrete; after drying, drilling a plurality of through holes on the surface of the waterproof concrete through drilling equipment; preparation of a third component: mixing base oil, petroleum resin, a styrene thermoplastic elastomer and a silane coupling agent according to the ratio of 1:1:1: 1; preparing asphalt: the second component and the third component are uniformly mixed to form a mixture, and the mixture and the first component are placed into a stirrer for molding, wherein the specific method comprises the following steps: and (3) putting the prepared asphalt into a high-speed stirrer, dispersing at 195 ℃ at 18000rpm for 50min, and stirring at 200 ℃ at 1000rpm for 50min to uniformly mix to obtain the modified asphalt.
Example 4
Preparing a first component, namely mixing the asphalt with an ultraviolet absorbent and a dispersing agent, heating the mixture to 170 ℃ through a heat exchanger, transferring the mixture to a stirring production tank, and transferring the mixture to the stirring production tank; the preparation of the second component, namely preparing raw materials by utilizing the existing concrete block, specifically comprising the following steps: selecting waste concrete blocks, adding the waste concrete blocks into a high-temperature furnace, and continuously treating for 30 minutes at 120 ℃; putting the waste concrete blocks treated in the previous step into a stirrer, continuously introducing high-pressure air into the stirrer, and smashing the waste concrete blocks in the stirrer to obtain waste concrete powder; the preparation of the pervious concrete comprises the following steps: according to the weight percentage, 30 parts of waste gas concrete powder, 5 parts of water glass, 5 parts of fine aluminum powder, 5 parts of bentonite, 5 parts of gypsum, 5 parts of quicklime and 20 parts of fine river sand are put into a stirrer to be fully stirred to form a mixture; according to the weight percentage, mixing and stirring the mixture and water according to the weight ratio of 1:0.3, and pouring the mixture into a spherical mould to form a porous concrete prefabricated body; adding dry ice into the porous concrete prefabricated body in the mold, stirring the dry ice into the porous concrete prefabricated body, tightly covering the mold, and drying the mold to form porous concrete; the preparation of the waterproof concrete comprises the following steps: according to the total weight fraction, 50 parts of cement, 25 parts of sand, 10 parts of fly ash, 10 parts of fine river sand, 10 parts of polycarboxylic acid water reducing agent, 10 parts of Portland cement and 40 parts of water are fully stirred and mixed, and then poured outside pervious concrete to form an outer layer of the impervious concrete; after drying, drilling a plurality of through holes on the surface of the waterproof concrete through drilling equipment; preparation of a third component: mixing base oil, petroleum resin, a styrene thermoplastic elastomer and a silane coupling agent according to the ratio of 1:1:1: 1; preparing asphalt: the second component and the third component are uniformly mixed to form a mixture, and the mixture and the first component are placed into a stirrer for molding, wherein the specific method comprises the following steps: and (3) putting the prepared asphalt into a high-speed stirrer, dispersing at 180 ℃ at a high speed of 7000rpm for 50min, and stirring at 200 ℃ at a low speed of 100rpm for 10min to uniformly mix to obtain the modified asphalt.
Example 5
Preparing a first component, namely mixing the asphalt with an ultraviolet absorbent and a dispersing agent, heating the mixture to 190 ℃ through a heat exchanger, transferring the mixture into a stirring production tank, and transferring the mixture into the stirring production tank; the preparation of the second component, namely preparing raw materials by utilizing the existing concrete block, specifically comprising the following steps: selecting waste concrete blocks, adding the waste concrete blocks into a high-temperature furnace, and continuously treating for 45 minutes at 150 ℃; putting the waste concrete blocks treated in the previous step into a stirrer, continuously introducing high-pressure air into the stirrer, and smashing the waste concrete blocks in the stirrer to obtain waste concrete powder; the preparation of the pervious concrete comprises the following steps: according to the weight percentage, 50 parts of waste gas concrete powder, 10 parts of water glass, 10 parts of fine aluminum powder, 10 parts of bentonite, 10 parts of gypsum, 10 parts of quicklime and 30 parts of fine river sand are put into a stirrer to be fully stirred to form a mixture; according to the weight percentage, mixing and stirring the mixture and water according to the weight ratio of 1:0.3, and pouring the mixture into a spherical mould to form a porous concrete prefabricated body; adding dry ice into the porous concrete prefabricated body in the mold, stirring the dry ice into the porous concrete prefabricated body, tightly covering the mold, and drying the mold to form porous concrete; the preparation of the waterproof concrete comprises the following steps: according to the total weight fraction, 30 parts of cement, 10 parts of sand, 5 parts of fly ash, 5 parts of fine river sand, 5 parts of polycarboxylic acid water reducing agent, 5 parts of Portland cement and 30 parts of water are fully stirred and mixed, and then poured outside the pervious concrete to form an outer layer of the impervious concrete; after drying, drilling a plurality of through holes on the surface of the waterproof concrete through drilling equipment; preparation of a third component: mixing base oil, petroleum resin, a styrene thermoplastic elastomer and a silane coupling agent according to the ratio of 1:1:1: 1; preparing asphalt: the second component and the third component are uniformly mixed to form a mixture, and the mixture and the first component are placed into a stirrer for molding, wherein the specific method comprises the following steps: and (3) putting the prepared asphalt into a high-speed stirrer, dispersing at 180 ℃ at a high speed of 7000rpm for 50min, and stirring at 200 ℃ at a low speed of 1000rpm for 10min to uniformly mix to obtain the modified asphalt.
Table 1 analysis of properties of examples
Performance test 2, Water permeation test, the test method is, 10 liters of water is put on the surface of 1 square meter of asphalt, the water permeation time is recorded, Table 2.
| Detecting content | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 |
| Water penetration time/s | 180 | 172 | 168 | 177 | 168 |
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A high viscosity modified asphalt for water permeable pavement, comprising:
a first component that is asphalt;
a second component which is a filler particle having a porous structure;
a third component which is a colorless cementitious material;
the second component and the third component are uniformly mixed and then dispersed into the first component;
the second component is porous concrete particles;
the porous concrete particles include outer impermeable concrete, inner permeable concrete, and one or more through-holes extending from the impermeable concrete surface to the permeable concrete interior.
2. The high viscosity modified asphalt for water permeable pavement according to claim 1, wherein: the colorless cementing material is prepared by mixing base oil, petroleum resin, a styrene thermoplastic elastomer and a silane coupling agent according to the ratio of 1:1:1: 1.
3. A preparation method of high-viscosity modified asphalt for a water-permeable pavement is characterized by comprising the following steps:
s1, preparing a first component, namely heating the asphalt to 190 ℃ through a heat exchanger, and transferring the asphalt into a stirring production tank;
s2, preparing a second component,
s21, preparing raw materials by using the existing concrete block, specifically:
s211, selecting waste concrete blocks, adding the waste concrete blocks into a high-temperature furnace, and continuously treating for 30-45 minutes at the temperature of 120-;
s212, placing the waste concrete blocks processed in the previous step into a stirrer, continuously introducing high-pressure air into the stirrer, and smashing the waste concrete blocks inside to obtain waste concrete powder;
s22, preparing the pervious concrete, specifically:
s231, putting 30-50 parts of waste concrete powder, 5-10 parts of water glass, 5-10 parts of fine aluminum powder, 5-10 parts of bentonite, 5-10 parts of gypsum, 5-10 parts of quicklime and 20-30 parts of fine river sand into a stirrer for fully stirring to form a mixture;
s232, mixing and stirring the mixture and water according to a weight ratio of 1: 0.3-0.5 in parts by weight, and pouring the mixture into a spherical mold to form a porous concrete prefabricated body;
s233, adding dry ice into the porous concrete prefabricated body in the mold, stirring the dry ice into the porous concrete prefabricated body, covering the mold tightly, and drying the mold to form porous concrete;
s23, preparing the waterproof concrete, specifically:
s231, according to the total weight fraction, fully stirring and mixing 30-50 parts of cement, 10-25 parts of sand, 5-10 parts of fly ash, 5-10 parts of fine river sand, 5-10 parts of polycarboxylic acid water reducing agent, 5-10 parts of Portland cement and 30-40 parts of water, and pouring the mixture outside pervious concrete to form an outer layer of the impervious concrete;
s232, after drying, drilling a plurality of through holes in the surface of the impervious concrete through drilling equipment;
s24, preparing a third component:
mixing base oil, petroleum resin, a styrene thermoplastic elastomer and a silane coupling agent according to the ratio of 1:1:1: 1;
s25, asphalt preparation:
and uniformly mixing the second component and the third component to form a mixture, and putting the mixture and the first component into a stirrer for molding.
4. The method for preparing the high-viscosity modified asphalt for the water permeable pavement according to claim 3, wherein the specific method for molding the asphalt comprises the following steps: the prepared asphalt is put into a high-speed stirrer and dispersed at a high speed of 7000-.
5. The method for preparing high viscosity modified asphalt for water permeable pavement according to claim 3, wherein the method comprises the following steps: in the second component, the diameter of the pervious concrete is 6-8mm, and the thickness of the impervious concrete is 2-4 mm.
6. The method for preparing high viscosity modified asphalt for water permeable pavement according to claim 3, wherein the method comprises the following steps: the diameter of the through hole is 1-2 mm.
7. The method for preparing high viscosity modified asphalt for water permeable pavement according to claim 3, wherein the method comprises the following steps: the specific step in the step S1 is to mix the asphalt with the ultraviolet absorbent and the dispersant, then heat the mixture to 190 ℃ through a heat exchanger, and transfer the mixture to a stirring production tank.
8. The method for preparing high viscosity modified asphalt for water permeable pavement according to claim 7, wherein the method comprises the following steps: the ultraviolet absorbent is an ultraviolet absorbent UV-1164, and the dispersing agent is microcrystalline paraffin.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010795903.9A CN111847978B (en) | 2020-08-10 | 2020-08-10 | High-viscosity modified asphalt for water-permeable pavement and preparation method thereof |
| CN202110548408.2A CN113248182A (en) | 2020-08-10 | 2020-08-10 | High-viscosity modified asphalt for water-permeable pavement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010795903.9A CN111847978B (en) | 2020-08-10 | 2020-08-10 | High-viscosity modified asphalt for water-permeable pavement and preparation method thereof |
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| CN202110548408.2A Division CN113248182A (en) | 2020-08-10 | 2020-08-10 | High-viscosity modified asphalt for water-permeable pavement |
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| CN111847978A CN111847978A (en) | 2020-10-30 |
| CN111847978B true CN111847978B (en) | 2021-06-29 |
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| JP2004092240A (en) * | 2002-08-30 | 2004-03-25 | Artrock:Kk | Paving block material and pavement structure using the same |
| CN1990584A (en) * | 2005-12-29 | 2007-07-04 | 上海群康沥青科技有限公司 | High viscosity modified asphalt for water permeable pavement and preparation method thereof |
| CN101786834B (en) * | 2010-01-25 | 2012-09-19 | 重庆鹏方路面工程技术研究院有限公司 | Porous salt storage aggregate and preparation method thereof |
| US20140170363A1 (en) * | 2012-12-19 | 2014-06-19 | Intecrete, Llc | Layered architectural pervious concrete |
| CN105645901B (en) * | 2015-12-30 | 2017-12-12 | 浙江大学 | Light thermal-insulation sheet material prepared with construction refuse regenerated fine powder and preparation method thereof |
| CN105906233B (en) * | 2016-02-24 | 2018-12-21 | 南京同力建设集团股份有限公司 | A kind of high-performance color pervious asphalt concrete and preparation method thereof |
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| CN107021675A (en) * | 2017-04-07 | 2017-08-08 | 扬州大学 | A kind of environmental haydite pervious asphalt concrete and preparation method thereof |
| CN108101572B (en) * | 2017-12-26 | 2021-02-02 | 陕西延长石油（集团）有限责任公司 | Method for preparing light ceramsite by coupling oil-containing sludge at bottom of high-viscosity tank with solid waste in coal chemical industry |
| CN109053048A (en) * | 2018-09-06 | 2018-12-21 | 汪条英 | A kind of concrete and its preparation process |
| CN109970391A (en) * | 2019-01-24 | 2019-07-05 | 安徽虹达道路桥梁工程有限公司 | A kind of modified pitch and the high-intensitive pervious asphalt concrete with the pitch |
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