CN108298875A - A kind of bituminous concrete and preparation method thereof - Google Patents
A kind of bituminous concrete and preparation method thereof Download PDFInfo
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- CN108298875A CN108298875A CN201810414289.XA CN201810414289A CN108298875A CN 108298875 A CN108298875 A CN 108298875A CN 201810414289 A CN201810414289 A CN 201810414289A CN 108298875 A CN108298875 A CN 108298875A
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- bituminous concrete
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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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The present invention relates to technical field of concrete, especially a kind of bituminous concrete and preparation method thereof；Its mass parts composition is as follows：10 20 parts of modified pitch, 25 35 parts of rubble, 6 12 parts of Iron Ore Powder, 60 80 parts of basalt aggregate, 0.8 1.2 parts of kaolin, 48 parts of rosin tackifying resin, 26 parts of sodium lignin sulfonate, 36 parts of hollow glass micropearl, 28 parts of butadiene-styrene rubber latex, 0.2 1.2 parts of protecting coat agent, 10 12 parts of flexible waterproof putty, 0.6 1.2 parts of titanate esters accelerating agent, 26 parts of aliphatic polyurethane resin, 0.2 3.6 parts of water-reducing agent；The ability of anti-deformation and skid resistance on road surface can be improved by the mixing of various materials by the present invention；Using disclosed in the present invention contain filler of the present invention bituminous concrete meet or exceed it is traditional using miberal powder as the performance of the bituminous concrete of filler, it is at low cost.
Description
Technical field
The present invention relates to technical field of concrete, especially a kind of bituminous concrete and preparation method thereof.
Background technology
Bituminous concrete is different by binder used, can be divided into asphalt and coal tar pitch two major classes, some countries
Or also there is use in area or mixes bitumen mixing.By it is used gather materials kind difference, can be divided into rubble, gravel, sand
It is matter, slag several classes of, it is the most universal with rubble use.It is different by mixture maximum particle size, coarse grain (35~40 can be divided into
Millimeter or less), middle grain (20~25 millimeters or less), particulate (10~15 millimeters or less), sand grains (5~7 millimeters or less) etc. it is several classes of.
It is different by the compaction rate of mixture, it can be divided into that close-graded, half open gradation and open gradation etc. are several classes of, and open mix also referred to as drips
Green rubble.The wherein hot close-graded macadam-aggregate mix for mixing heat paving is durable, and intensity is high, good integrity, is to build advanced pitch
The representative materials on road surface are applied most wide.
Existing bituminous concrete raw material is fairly simple, causes its viscosity general, is laid with using traditional asphalt concrete
Highway pavement can usually crack in advance by solar exposure and slacking, causes the service life on road surface to reduce, increases
The cost repaired the roads.
Invention content
The technical problem to be solved by the present invention is to：Overcome deficiency in the prior art, provides that a kind of service life is long, uses
Bituminous concrete at low cost, it is a further object to provide a kind of preparation methods of bituminous concrete.
In order to solve the above technical problems, the technical solution adopted by the present invention is as follows：
A kind of bituminous concrete, mass parts composition are as follows：10-20 parts of modified pitch, 25-35 parts of rubble, Iron Ore Powder 6-
12 parts, it is 60-80 parts of basalt aggregate, 0.8-1.2 parts of kaolin, 4-8 parts of rosin tackifying resin, 2-6 parts of sodium lignin sulfonate, empty
3-6 parts of heart glass microballoon, 2-8 parts of butadiene-styrene rubber latex, 0.2-1.2 parts of protecting coat agent, 10-12 parts of flexible waterproof putty, titanate esters
0.6-1.2 parts of accelerating agent, 2-6 parts of aliphatic polyurethane resin, 0.2-3.6 parts of water-reducing agent.
Preferably, the mass parts composition of the modifying agent of the modified pitch is as follows：2-8 parts of carbonyl iron dust of nanometer, metatitanic acid four
0.8-2.4 parts of butyl ester, 0.2-0.8 parts of line style Styrene-Butadiene-Styrene Block Copolymer, coal ash fiber cotton-wool 1.2-
1.8 part.
Preferably, the mass parts composition of the protecting coat agent is as follows：1.2-3.6 parts of 2 ethyl hexanoic acid, 2-8 parts of polyvinyl alcohol,
- 2 0.8-3.6 parts of 3- benzoyloxymethyls, 0.3-0.6 parts of 2- dimethyl propyl ester .2-4.8 parts of silica 1.
Preferably, the grain size of the thickness broken ore is 30mm-40mm.
Preferably, the mass parts composition of the water-reducing agent is as follows：15-30 parts of beta-naphthalenesulfonic-acid salt formaldehyde condensation products, poly- second two
10-15 parts of alcohol monomethyl ether metacrylic acid ester, 1.5-2.5 parts of silicone powder, 3-6 parts of sugar calcium, 3-4 parts of saltcake, tufa stone micro mist 3-8
Part, 2-3 parts of cocounut oil acyl diethanol amine, 1-2 parts of datolite powder.
Preferably, the mass parts composition of the water-reducing agent is as follows：18 parts of beta-naphthalenesulfonic-acid salt formaldehyde condensation products, polyethyleneglycol
12 parts of methyl ether methacrylate, 2 parts of silicone powder, 4.5 parts of sugar calcium, 3.5 parts of saltcake, 6 parts of tufa stone micro mist, cocounut oil acyl diethanol
2.5 parts of amine, 1.5 parts of datolite powder.
Preferably, mass parts composition is as follows：15 parts of modified pitch, 30 parts of rubble, 9 parts of Iron Ore Powder, basalt aggregate 70
Part, 1 part of kaolin, 6 parts of rosin tackifying resin, 4 parts of sodium lignin sulfonate, 4.5 parts of hollow glass micropearl, butadiene-styrene rubber latex 5
Part, 0.7 part of protecting coat agent, 12 parts of flexible waterproof putty, 0.8 part of titanate esters accelerating agent, 4 parts of aliphatic polyurethane resin, water-reducing agent 2
Part.
A kind of method of bituminous concrete is prepared, the preparation method comprises the following steps：
(1) preparation of modified pitch：It is heated to melting completely at being 160-180 DEG C in temperature by bitumen base, drip is added
The modifying agent of green weight 3-5%, nanometer carbonyl iron dust, butyl titanate, line style s-B-S block copolymerization
Object, coal ash fiber cotton-wool are uniformly mixed, obtain mixture；
It is 160-180 DEG C that mixture is kept in high-speed shearing machine to temperature, is sheared 20-40 minute, shears revolution and is
3000-5000 revs/min, obtain modified pitch；
(2) by rubble, Iron Ore Powder, basalt aggregate, kaolin, rosin tackifying resin, sodium lignin sulfonate, hollow glass
Microballon, butadiene-styrene rubber latex, protecting coat agent, flexible waterproof putty, titanate esters accelerating agent, aliphatic polyurethane resin, water-reducing agent,
Temperature is 250-500 revs/min with rotating speed at being 160-180 DEG C and stirs 10-12 minutes, and modified pitch is then added and continues with rotating speed
10-12 minutes are stirred for 200-500 revs/min to obtain the final product.
The advantageous effect of technical solution using the present invention is：
The ability of anti-deformation and skid resistance on road surface can be improved by the mixing of various materials by the present invention；Using public in the present invention
The bituminous concrete containing filler of the present invention opened meets or exceeds traditional using miberal powder as the property of the bituminous concrete of filler
Can, it is at low cost.
Specific implementation mode
Presently in connection with specific embodiment, the present invention is described in further detail.
Embodiment 1
A kind of bituminous concrete, mass parts composition are as follows：10 parts of modified pitch, 25 parts of rubble, 6 parts of Iron Ore Powder, the Black Warrior
Rock gather materials 60 parts, 0.8 part of kaolin, 4 parts of rosin tackifying resin, 2 parts of sodium lignin sulfonate, 3 parts of hollow glass micropearl, butylbenzene rubber
2 parts of latex glue, 0.2 part of protecting coat agent, 10 parts of flexible waterproof putty, 0.6 part of titanate esters accelerating agent, 2 parts of aliphatic polyurethane resin,
0.2 part of water-reducing agent.
Wherein, the mass parts composition of the modifying agent of modified pitch is as follows：2 parts of carbonyl iron dust of nanometer, butyl titanate 0.8
Part, 0.2 part of line style Styrene-Butadiene-Styrene Block Copolymer, 1.2 parts of coal ash fiber cotton-wool.
Wherein, the mass parts composition of protecting coat agent is as follows：1.2 parts of 2 ethyl hexanoic acid, 2 parts of polyvinyl alcohol, 3- benzoyloxys
0.8 part of methyl -2,0.3 part of 2- dimethyl propyl ester .2 parts of silica 1.
Wherein, the grain size of thickness broken ore is 30mm-40mm.
Wherein, the mass parts composition of water-reducing agent is as follows：15 parts of beta-naphthalenesulfonic-acid salt formaldehyde condensation products, poly glycol monomethyl ether first
10 parts of base acrylate, 1.5 parts of silicone powder, 3 parts of sugar calcium, 3 parts of saltcake, 3 parts of tufa stone micro mist, 2 parts of cocounut oil acyl diethanol amine, silicon
1 part of bechilite powder.
Embodiment 2
A kind of bituminous concrete, mass parts composition are as follows：12 parts of modified pitch, 28 parts of rubble, 7 parts of Iron Ore Powder, the Black Warrior
Rock gather materials 62 parts, 0.9 part of kaolin, 5 parts of rosin tackifying resin, 3 parts of sodium lignin sulfonate, 4 parts of hollow glass micropearl, butylbenzene rubber
3 parts of latex glue, 0.4 part of protecting coat agent, 10 parts of flexible waterproof putty, 0.8 part of titanate esters accelerating agent, 3 parts of aliphatic polyurethane resin,
0.6 part of water-reducing agent.
Wherein, the mass parts composition of the modifying agent of modified pitch is as follows：Nanometer 3 parts of carbonyl iron dust, 1 part of butyl titanate,
0.3 part of line style Styrene-Butadiene-Styrene Block Copolymer, 1.5 parts of coal ash fiber cotton-wool.
Wherein, the mass parts composition of protecting coat agent is as follows：1.5 parts of 2 ethyl hexanoic acid, 3 parts of polyvinyl alcohol, 3- benzoyloxys
1.2 parts of methyl -2,0.4 part of 2- dimethyl propyl ester .5 parts of silica 1.
Wherein, the grain size of thickness broken ore is 30mm-40mm.
Wherein, the mass parts composition of water-reducing agent is as follows：16 parts of beta-naphthalenesulfonic-acid salt formaldehyde condensation products, poly glycol monomethyl ether first
12 parts of base acrylate, 1.8 parts of silicone powder, 4 parts of sugar calcium, 3.2 parts of saltcake, 4 parts of tufa stone micro mist, cocounut oil acyl diethanol amine 2.5
Part, 1.2 parts of datolite powder.
Embodiment 3
A kind of bituminous concrete, mass parts composition are as follows：15 parts of modified pitch, 30 parts of rubble, 9 parts of Iron Ore Powder, the Black Warrior
Rock gather materials 70 parts, 1 part of kaolin, 6 parts of rosin tackifying resin, 4 parts of sodium lignin sulfonate, 4.5 parts of hollow glass micropearl, butylbenzene rubber
5 parts of latex glue, 0.7 part of protecting coat agent, 12 parts of flexible waterproof putty, 0.8 part of titanate esters accelerating agent, 4 parts of aliphatic polyurethane resin,
2 parts of water-reducing agent.
Wherein, the mass parts composition of the modifying agent of modified pitch is as follows：5 parts of carbonyl iron dust of nanometer, butyl titanate 1.6
Part, 0.5 part of line style Styrene-Butadiene-Styrene Block Copolymer, 1.5 parts of coal ash fiber cotton-wool.
Wherein, the mass parts composition of protecting coat agent is as follows：2.4 parts of 2 ethyl hexanoic acid, 5 parts of polyvinyl alcohol, 3- benzoyloxys
2.4 parts of methyl -2,0.5 part of 2- dimethyl propyl ester, 3 parts of silica.
Wherein, the grain size of thickness broken ore is 30mm-40mm.
Wherein, the mass parts composition of water-reducing agent is as follows：18 parts of beta-naphthalenesulfonic-acid salt formaldehyde condensation products, poly glycol monomethyl ether first
12 parts of base acrylate, 2 parts of silicone powder, 4.5 parts of sugar calcium, 3.5 parts of saltcake, 6 parts of tufa stone micro mist, cocounut oil acyl diethanol amine 2.5
Part, 1.5 parts of datolite powder.
Embodiment 4
A kind of bituminous concrete, mass parts composition are as follows：18 parts of modified pitch, 32 parts of rubble, 10 parts of Iron Ore Powder, the Black Warrior
Rock gather materials 75 parts, 1 part of kaolin, 6 parts of rosin tackifying resin, 5 parts of sodium lignin sulfonate, 5 parts of hollow glass micropearl, butadiene-styrene rubber
7 parts of latex, 1.1 parts of protecting coat agent, 11 parts of flexible waterproof putty, 1.1 parts of titanate esters accelerating agent, 5.2 parts of aliphatic polyurethane resin,
3.2 parts of water-reducing agent.
Wherein, the mass parts composition of the modifying agent of modified pitch is as follows：7 parts of carbonyl iron dust of nanometer, butyl titanate 2.2
Part, 0.7 part of line style Styrene-Butadiene-Styrene Block Copolymer, 1.6 parts of coal ash fiber cotton-wool.
Wherein, the mass parts composition of protecting coat agent is as follows：3.2 parts of 2 ethyl hexanoic acid, 7 parts of polyvinyl alcohol, 3- benzoyloxys
3.2 parts of methyl -2,0.5 part of 2- dimethyl propyl ester, 4.6 parts of silica.
Wherein, the grain size of thickness broken ore is 30mm-40mm.
Wherein, the mass parts composition of water-reducing agent is as follows：28 parts of beta-naphthalenesulfonic-acid salt formaldehyde condensation products, poly glycol monomethyl ether first
12 parts of base acrylate, 2.2 parts of silicone powder, 5 parts of sugar calcium, 4.5 parts of saltcake, 7 parts of tufa stone micro mist, cocounut oil acyl diethanol amine 2.8
Part, 1.8 parts of datolite powder.
Embodiment 5
A kind of bituminous concrete, mass parts composition are as follows：20 parts of modified pitch, 35 parts of rubble, 12 parts of Iron Ore Powder, the Black Warrior
Rock gather materials 80 parts, 1.2 parts of kaolin, 8 parts of rosin tackifying resin, 6 parts of sodium lignin sulfonate, 6 parts of hollow glass micropearl, butylbenzene rubber
8 parts of latex glue, 1.2 parts of protecting coat agent, 12 parts of flexible waterproof putty, 1.2 parts of titanate esters accelerating agent, 6 parts of aliphatic polyurethane resin,
3.6 parts of water-reducing agent.
Wherein, the mass parts composition of the modifying agent of modified pitch is as follows：8 parts of carbonyl iron dust of nanometer, butyl titanate 2.4
Part, 0.8 part of line style Styrene-Butadiene-Styrene Block Copolymer, 1.8 parts of coal ash fiber cotton-wool.
Wherein, the mass parts composition of protecting coat agent is as follows：3.6 parts of 2 ethyl hexanoic acid, 8 parts of polyvinyl alcohol, 3- benzoyloxys
3.6 parts of methyl -2,0.6 part of 2- dimethyl propyl ester, 4.8 parts of silica.
Wherein, the grain size of thickness broken ore is 30mm-40mm.
Wherein, the mass parts composition of water-reducing agent is as follows：30 parts of beta-naphthalenesulfonic-acid salt formaldehyde condensation products, poly glycol monomethyl ether first
15 parts of base acrylate, 2.5 parts of silicone powder, 6 parts of sugar calcium, 4 parts of saltcake, 8 parts of tufa stone micro mist, 3 parts of cocounut oil acyl diethanol amine, silicon
2 parts of bechilite powder.
The preparation method of bituminous concrete in embodiment 1-5 is as follows：
(1) preparation of modified pitch：It is heated to melting completely at being 160-180 DEG C in temperature by bitumen base, drip is added
The modifying agent of green weight 3-5%, nanometer carbonyl iron dust, butyl titanate, line style s-B-S block copolymerization
Object, coal ash fiber cotton-wool are uniformly mixed, obtain mixture；
It is 160-180 DEG C that mixture is kept in high-speed shearing machine to temperature, is sheared 20-40 minute, shears revolution and is
3000-5000 revs/min, obtain modified pitch；
(2) by rubble, Iron Ore Powder, basalt aggregate, kaolin, rosin tackifying resin, sodium lignin sulfonate, hollow glass
Microballon, butadiene-styrene rubber latex, protecting coat agent, flexible waterproof putty, titanate esters accelerating agent, aliphatic polyurethane resin, water-reducing agent,
Temperature is 250-500 revs/min with rotating speed at being 160-180 DEG C and stirs 10-12 minutes, and modified pitch is then added and continues with rotating speed
10-12 minutes are stirred for 200-500 revs/min to obtain the final product.
Bituminous concrete in embodiment 1-5, passes through《Lightweight aggregate concrete technology regulation》JGJ51-2002 and《Building sand
Starch basic performance tests method》The method of JGJ70-90 carries out dry apparent density, 28d compression strength and thermal coefficient detection,
Its testing result is as follows
It is enlightenment with above-mentioned desirable embodiment according to the present invention, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.All essences in the present invention
With within principle, any modification, equivalent substitution, improvement and etc. done should all be included in the protection scope of the present invention god.This
The technical scope of item invention is not limited to the contents of the specification, it is necessary to determine its technology according to right
Property range.
Claims (8)
1. a kind of bituminous concrete, it is characterised in that：Its mass parts composition is as follows：10-20 parts of modified pitch, 25-35 parts of rubble,
6-12 parts of Iron Ore Powder, 60-80 parts of basalt aggregate, 0.8-1.2 parts of kaolin, 4-8 parts of rosin tackifying resin, sodium lignin sulfonate
2-6 parts, 3-6 parts of hollow glass micropearl, 2-8 parts of butadiene-styrene rubber latex, 0.2-1.2 parts of protecting coat agent, flexible waterproof putty 10-12
Part, 0.6-1.2 parts of titanate esters accelerating agent, 2-6 parts of aliphatic polyurethane resin, 0.2-3.6 parts of water-reducing agent.
2. a kind of bituminous concrete according to claim 1, it is characterised in that：The quality of the modifying agent of the modified pitch
Part composition is as follows：2-8 parts of carbonyl iron dust of nanometer, 0.8-2.4 parts of butyl titanate, line style s-B-S block
0.2-0.8 parts of copolymer, 1.2-1.8 parts of coal ash fiber cotton-wool.
3. a kind of bituminous concrete according to claim 1, it is characterised in that：The mass parts composition of the protecting coat agent is such as
Under：1.2-3.6 parts of 2 ethyl hexanoic acid, 2-8 parts of polyvinyl alcohol, -2 0.8-3.6 parts of 3- benzoyloxymethyls, 2- dimethyl propylenes
0.3-0.6 parts of ester .2-4.8 parts of silica 1.
4. a kind of bituminous concrete according to claim 1, it is characterised in that：The grain size of the thickness broken ore is
30mm-40mm。
5. a kind of bituminous concrete according to claim 1, it is characterised in that：The mass parts composition of the water-reducing agent is such as
Under：15-30 parts of beta-naphthalenesulfonic-acid salt formaldehyde condensation products, 10-15 parts of polyethylene glycol monomethyl ethermethacrylic acid esters, silicone powder
1.5-2.5 parts, 3-6 parts of sugar calcium, 3-4 parts of saltcake, 3-8 parts of tufa stone micro mist, 2-3 parts of cocounut oil acyl diethanol amine, datolite
1-2 parts of powder.
6. a kind of bituminous concrete according to claim 5, it is characterised in that：The mass parts composition of the water-reducing agent is such as
Under：18 parts of beta-naphthalenesulfonic-acid salt formaldehyde condensation products, 12 parts of polyethylene glycol monomethyl ethermethacrylic acid esters, 2 parts of silicone powder, sugar calcium
4.5 parts, 3.5 parts of saltcake, 6 parts of tufa stone micro mist, 2.5 parts of cocounut oil acyl diethanol amine, 1.5 parts of datolite powder.
7. a kind of bituminous concrete according to claim 1, it is characterised in that：Its mass parts composition is as follows：Modified pitch
15 parts, 30 parts of rubble, 9 parts of Iron Ore Powder, 70 parts of basalt aggregate, 1 part of kaolin, 6 parts of rosin tackifying resin, sodium lignin sulfonate
4 parts, 4.5 parts of hollow glass micropearl, 5 parts of butadiene-styrene rubber latex, 0.7 part of protecting coat agent, 12 parts of flexible waterproof putty, titanate esters promote
0.8 part of agent, 4 parts of aliphatic polyurethane resin, 2 parts of water-reducing agent.
8. the method for preparing a kind of bituminous concrete as described in any one of claim 1-7, it is characterised in that：The preparation
Method includes the following steps：
（1）The preparation of modified pitch：It is heated to melting completely at being 160-180 DEG C in temperature by bitumen base, pitch emphasis is added
Measure the modifying agent of 3-5%, nanometer carbonyl iron dust, butyl titanate, line style Styrene-Butadiene-Styrene Block Copolymer, powder
Coal ash fiber cotton-wool is uniformly mixed, obtains mixture；
It is 160-180 DEG C that mixture is kept in high-speed shearing machine to temperature, is sheared 20-40 minute, and shearing revolution is 3000-
5000 revs/min, obtain modified pitch；
（2）Rubble, Iron Ore Powder, basalt aggregate, kaolin, rosin tackifying resin, sodium lignin sulfonate, hollow glass is micro-
Pearl, butadiene-styrene rubber latex, protecting coat agent, flexible waterproof putty, titanate esters accelerating agent, aliphatic polyurethane resin, water-reducing agent, in temperature
Degree is to be 250-500 revs/min at 160-180 DEG C with rotating speed to stir 10-12 minutes, and modified pitch continuation is then added is with rotating speed
200-500 revs/min is stirred 10-12 minutes to obtain the final product.
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| CN109265076A (en) * | 2018-09-08 | 2019-01-25 | 平湖市中建沥青混凝土工程有限公司 | A kind of rubber asphalt concrete and its preparation process |
| CN110104995A (en) * | 2019-05-22 | 2019-08-09 | 江苏路通路桥工程集团有限公司 | A kind of construction of the highway bituminous concrete and preparation method thereof |
| CN111497014A (en) * | 2020-04-26 | 2020-08-07 | 张国庆 | Preparation process of asphalt concrete |
| WO2021006292A1 (en) * | 2019-07-08 | 2021-01-14 | 前田道路株式会社 | Asphalt mixture and paving method using same |
| CN112645641A (en) * | 2020-12-22 | 2021-04-13 | 宁波北仑鸿通工程建设有限公司 | Anti-aging asphalt concrete and preparation method thereof |
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