CN105621955B - A kind of room-temperature asphalt concrete and preparation method thereof - Google Patents
A kind of room-temperature asphalt concrete and preparation method thereof Download PDFInfo
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- CN105621955B CN105621955B CN201510969934.0A CN201510969934A CN105621955B CN 105621955 B CN105621955 B CN 105621955B CN 201510969934 A CN201510969934 A CN 201510969934A CN 105621955 B CN105621955 B CN 105621955B
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- 239000011384 asphalt concrete Substances 0.000 title claims abstract description 51
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 239000002245 particle Substances 0.000 claims abstract description 130
- 239000010426 asphalt Substances 0.000 claims abstract description 65
- 239000000945 filler Substances 0.000 claims abstract description 41
- 239000002994 raw material Substances 0.000 claims abstract description 24
- 239000000843 powder Substances 0.000 claims description 49
- 238000003756 stirring Methods 0.000 claims description 20
- 229910000514 dolomite Inorganic materials 0.000 claims description 17
- 239000010459 dolomite Substances 0.000 claims description 17
- 239000004568 cement Substances 0.000 claims description 16
- 239000010438 granite Substances 0.000 claims description 16
- 235000019738 Limestone Nutrition 0.000 claims description 15
- 239000006028 limestone Substances 0.000 claims description 15
- 239000011435 rock Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 10
- 239000000428 dust Substances 0.000 claims description 5
- 239000004567 concrete Substances 0.000 abstract description 14
- 230000004888 barrier function Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 229910052500 inorganic mineral Inorganic materials 0.000 description 8
- 239000011707 mineral Substances 0.000 description 8
- 238000002474 experimental method Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 238000005056 compaction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 230000015271 coagulation Effects 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 3
- 244000025254 Cannabis sativa Species 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000003487 anti-permeability effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention belongs to Hydraulic and Hydro-Power Engineering technical field, more particularly to a kind of room-temperature asphalt concrete and preparation method thereof.The technical problems to be solved by the invention are to provide a kind of room-temperature asphalt concrete, are prepared by the raw material of following percentage by weight：16mm >=particle diameter ＞ 9.5mm aggregate 8~13%, 9.5mm >=particle diameter ＞ 4.75mm aggregate 16~21%, 4.75mm >=particle diameter ＞ 2.36mm aggregate 25~26%, 2.36mm >=particle diameter ＞ 0.075mm aggregate 38~40%, particle diameter≤0.075mm filler are 6.0%；Bitumen aggregate ratio is 6.5~7.0%, and described bitumen aggregate ratio represents room-temperature asphalt weight and the ratio between foregoing aggregate and filler gross weight.Room-temperature asphalt concrete provided by the invention, solve the problems, such as that ordinary room temperature bituminous concrete porosity is big, barrier performance is poor and cannot be used for Hydraulic and Hydro-Power Engineering leakage preventing structure.
Description
Technical field
The invention belongs to Hydraulic and Hydro-Power Engineering technical field, more particularly to a kind of room-temperature asphalt concrete and its preparation side
Method.
Background technology
Bituminous concrete is used as the leakage preventing structure of Hydraulic and Hydro-Power Engineering history for many years, and more common at present is compaction type
Bituminous concrete, but compaction type bituminous concrete is a kind of heated bitumen concrete, and asphalt heating temperature is generally 150~170 DEG C,
Aggregate heating-up temperature is generally 170~200 DEG C, therefore, is producing and to consume mass energy in work progress.
Room-temperature asphalt can be produced by being mixed and stirred using asphalt liquefier and pitch, such as Chinese patent 201010189089.2
A kind of blending type room-temperature asphalt liquefier is disclosed, the liquefier can produce room-temperature asphalt.Produced and dripped using room-temperature asphalt
Blue or green concrete has the characteristics that few fume emission, easy construction, energy-conserving and environment-protective, efficiency of construction is high, shortens the duration and reduces cost,
Current room temperature bituminous concrete is applied in the road engineerings such as Paving of Asphalt Concrete Road Surface, but ordinary room temperature pitch mixes
There is the problems such as porosity is big, barrier properties are poor in solidifying soil, it is impossible to meet the requirement for Hydraulic and Hydro-Power Engineering leakage preventing structure.
The content of the invention
For the problems such as above-mentioned room-temperature asphalt concrete pore rate is big, barrier properties are poor, the invention provides one kind to be used for
Room-temperature asphalt concrete of Hydraulic and Hydro-Power Engineering leakage preventing structure and preparation method thereof.
First technical problem to be solved by this invention is to provide a kind of room-temperature asphalt concrete.The room-temperature asphalt coagulation
Soil is prepared by the raw material of following percentage by weight：16mm >=particle diameter ＞ 9.5mm aggregate 8~13%, 9.5mm >=particle diameter ＞
4.75mm aggregate 16~21%, 4.75mm >=particle diameter ＞ 2.36mm aggregate 25~26%, 2.36mm >=particle diameter ＞ 0.075mm
Aggregate 38~40%, particle diameter≤0.075mm filler be 6.0%；Bitumen aggregate ratio is 6.5~7.0%, and described bitumen aggregate ratio represents
Room-temperature asphalt weight and the ratio between foregoing aggregate and filler gross weight；Described aggregate be granite, limestone or dolomite in extremely
Few one kind；Described filler is made up of cement and miberal powder；Described miberal powder be granite powder, grey rock dust or dolomite rock powder in extremely
Few one kind.
Preferably, above-mentioned room-temperature asphalt concrete is prepared by the raw material of following percentage by weight：16mm >=particle diameter ＞
9.5mm aggregate 8%, 9.5mm >=particle diameter ＞ 4.75mm aggregate 20%, 4.75mm >=particle diameter ＞ 2.36mm aggregate 26%,
2.36mm >=particle diameter ＞ 0.075mm aggregate 40%, particle diameter≤0.075mm filler are 6.0%；Bitumen aggregate ratio is 6.7%；It is described
Aggregate, miberal powder be granite.
Preferably, above-mentioned room-temperature asphalt concrete is prepared by the raw material of following percentage by weight：16mm >=particle diameter ＞
9.5mm aggregate 10%, 9.5mm >=particle diameter ＞ 4.75mm aggregate 21%, 4.75mm >=particle diameter ＞ 2.36mm aggregate 25%,
2.36mm >=particle diameter ＞ 0.075mm aggregate 38%, particle diameter≤0.075mm filler are 6.0%；Bitumen aggregate ratio is 6.7%；It is described
Aggregate, miberal powder be granite.
Preferably, above-mentioned room-temperature asphalt concrete is prepared by the raw material of following percentage by weight：16mm >=particle diameter ＞
9.5mm aggregate 13%, 9.5mm >=particle diameter ＞ 4.75mm aggregate 16%, 4.75mm >=particle diameter ＞ 2.36mm aggregate 25%,
2.36mm >=particle diameter ＞ 0.075mm aggregate 40%, particle diameter≤0.075mm filler are 6.0%；Bitumen aggregate ratio is 6.6%；It is described
Aggregate, miberal powder be limestone.
Preferably, above-mentioned room-temperature asphalt concrete is prepared by the raw material of following percentage by weight：16mm >=particle diameter ＞
9.5mm aggregate 12%, 9.5mm >=particle diameter ＞ 4.75mm aggregate 17%, 4.75mm >=particle diameter ＞ 2.36mm aggregate 25%,
2.36mm >=particle diameter ＞ 0.075mm aggregate 40%, particle diameter≤0.075mm filler are 6.0%；Bitumen aggregate ratio is 6.6%；It is described
Aggregate, miberal powder be limestone.
Preferably, above-mentioned room-temperature asphalt concrete is prepared by the raw material of following percentage by weight：16mm >=particle diameter ＞
9.5mm aggregate 8%, 9.5mm >=particle diameter ＞ 4.75mm aggregate 20%, 4.75mm >=particle diameter ＞ 2.36mm aggregate 26%,
2.36mm >=particle diameter ＞ 0.075mm aggregate 40%, particle diameter≤0.075mm filler are 6.0%；Bitumen aggregate ratio is 6.7%；It is described
Aggregate, miberal powder be dolomite.
Preferably, above-mentioned room-temperature asphalt concrete is prepared by the raw material of following percentage by weight：16mm >=particle diameter ＞
9.5mm aggregate 10%, 9.5mm >=particle diameter ＞ 4.75mm aggregate 21%, 4.75mm >=particle diameter ＞ 2.36mm aggregate 25%,
2.36mm >=particle diameter ＞ 0.075mm aggregate 38%, particle diameter≤0.075mm filler are 6.0%；Bitumen aggregate ratio is 6.7%；It is described
Aggregate, miberal powder be dolomite.
Preferably, in above-mentioned room-temperature asphalt concrete, described filler by etc. weight cement and miberal powder form.
Second technical problem to be solved by this invention is to provide the preparation method of above-mentioned room-temperature asphalt concrete.The party
Method comprises the following steps：Aggregate is heated to not less than 150 DEG C and stirred after pouring into stirring container, then adds room-temperature asphalt
After mix, mixed after adding filler, then exclude moisture.
The present invention selects simultaneously to optimize the granularity and adding proportion of each raw material of room-temperature asphalt concrete, it is only necessary to aggregate plus
Heat, it can be mixed with and form with room-temperature asphalt in relatively low temperature, and the room-temperature asphalt concrete tool being prepared
Have the advantages that mechanical strength is high, adaptive deformation ability is strong, anti-permeability performance is good, the antiseepage of Hydraulic and Hydro-Power Engineering can be performed well in
Structure.
Brief description of the drawings
Mono- stages of Fig. 1 grading ratio and porosity relation
Fig. 2 two-stage grading ratios and porosity relation
Tri- stages of Fig. 3 grading ratio and porosity relation
Tetra- stages of Fig. 4 grading ratio and porosity relation
Embodiment
A kind of room-temperature asphalt concrete, is prepared by the raw material of following percentage by weight：16mm >=particle diameter ＞ 9.5mm's
Aggregate 8~13%, 9.5mm >=particle diameter ＞ 4.75mm aggregate 16~21%, 4.75mm >=particle diameter ＞ 2.36mm aggregate 25~
26%th, 2.36mm >=particle diameter ＞ 0.075mm aggregate 38~40%, the filler of particle diameter≤0.075 is 6.0%；Bitumen aggregate ratio is 6.5
~7.0%, described bitumen aggregate ratio represents pitch weight and the ratio between foregoing aggregate and filler gross weight；Described aggregate is flower hilllock
At least one of rock, limestone or dolomite；Described filler is made up of cement and miberal powder；Described miberal powder be granite powder,
At least one of grey rock dust or dolomite rock powder.
Preferably, above-mentioned room-temperature asphalt concrete is prepared by the raw material of following percentage by weight：16mm >=particle diameter ＞
9.5mm aggregate 8%, 9.5mm >=particle diameter ＞ 4.75mm aggregate 20%, 4.75mm >=particle diameter ＞ 2.36mm aggregate 26%,
2.36mm >=particle diameter ＞ 0.075mm aggregate 40%, particle diameter≤0.075mm filler are 6.0%；Bitumen aggregate ratio is 6.7%；It is described
Aggregate, miberal powder be granite.
Preferably, above-mentioned room-temperature asphalt concrete is prepared by the raw material of following percentage by weight：16mm >=particle diameter ＞
9.5mm aggregate 10%, 9.5mm >=particle diameter ＞ 4.75mm aggregate 21%, 4.75mm >=particle diameter ＞ 2.36mm aggregate 25%,
2.36mm >=particle diameter ＞ 0.075mm aggregate 38%, particle diameter≤0.075mm filler are 6.0%；Bitumen aggregate ratio is 6.7%；It is described
Aggregate, miberal powder be granite.
Preferably, above-mentioned room-temperature asphalt concrete is prepared by the raw material of following percentage by weight：16mm >=particle diameter ＞
9.5mm aggregate 13%, 9.5mm >=particle diameter ＞ 4.75mm aggregate 16%, 4.75mm >=particle diameter ＞ 2.36mm aggregate 25%,
2.36mm >=particle diameter ＞ 0.075mm aggregate 40%, particle diameter≤0.075mm filler are 6.0%；Bitumen aggregate ratio is 6.6%；It is described
Aggregate, miberal powder be limestone.
Preferably, above-mentioned room-temperature asphalt concrete is prepared by the raw material of following percentage by weight：16mm >=particle diameter ＞
9.5mm aggregate 12%, 9.5mm >=particle diameter ＞ 4.75mm aggregate 17%, 4.75mm >=particle diameter ＞ 2.36mm aggregate 25%,
2.36mm >=particle diameter ＞ 0.075mm aggregate 40%, particle diameter≤0.075mm filler are 6.0%；Bitumen aggregate ratio is 6.6%；It is described
Aggregate, miberal powder be limestone.
Preferably, above-mentioned room-temperature asphalt concrete is prepared by the raw material of following percentage by weight：16mm >=particle diameter ＞
9.5mm aggregate 8%, 9.5mm >=particle diameter ＞ 4.75mm aggregate 20%, 4.75mm >=particle diameter ＞ 2.36mm aggregate 26%,
2.36mm >=particle diameter ＞ 0.075mm aggregate 40%, particle diameter≤0.075mm filler are 6.0%；Bitumen aggregate ratio is 6.7%；It is described
Aggregate, miberal powder be dolomite.
Preferably, above-mentioned room-temperature asphalt concrete is prepared by the raw material of following percentage by weight：16mm >=particle diameter ＞
9.5mm aggregate 10%, 9.5mm >=particle diameter ＞ 4.75mm aggregate 21%, 4.75mm >=particle diameter ＞ 2.36mm aggregate 25%,
2.36mm >=particle diameter ＞ 0.075mm aggregate 38%, particle diameter≤0.075mm filler are 6.0%；Bitumen aggregate ratio is 6.7%；It is described
Aggregate, miberal powder be dolomite.
Preferably, in above-mentioned room-temperature asphalt concrete, described filler by etc. weight cement and miberal powder form.
Meanwhile present invention also offers the preparation method of above-mentioned water conservancy project room-temperature asphalt concrete, comprise the following steps：Aggregate
It is heated to not less than 150 DEG C and stirs after pouring into stirring container, is mixed after then adding room-temperature asphalt, after adding filler
Mix, then exclude moisture.
The room-temperature asphalt concrete material match ratio of test example 1
(1) hierarchical composition stamped density experiment is carried out to aggregate, determines aggregate near optimal grading.Stamped density experiment with
Aggregate porosity is evaluation index, and the relation in aggregate between each particle size content and aggregate porosity is analyzed, with most tight
Closs packing principle, to determine the grading limit of aggregate.Stamped density experiment can be carried out in four stages, and a stage is first to two kinds of grains
Footpath aggregate is tested, and the two-stage adds a kind of aggregate of particle diameter again on the basis of a stage, the like.Each grain during experiment
Footpath section aggregate ratio uses the fully intermeshing combination of table row ratio.One stage aggregate size d (mm) was the Hes of 16 >=d ＞ 13.2
13.2 >=d ＞ 9.5mm, design proportion are shown in Table 1, and stamped density result of the test is shown in Fig. 1.
1 one stage of table aggregate size design proportion
As shown in Figure 1,16 >=d ＞ 13.2 and the particle diameter section aggregate ratios of 13.2 >=d ＞ 9.5 are changed to 40 ︰ 60 from 70 ︰ 30
When, downward trend is presented in porosity, and when being changed to 30 ︰ 70, then porosity increases suddenly, and porosity is significantly greater than above 4
Kind combination.Hence, it can be determined that 16 >=d ＞ 13.2 and the particle diameter section aggregate ratios of 13.2 >=d ＞ 9.5 are 40 ︰ 60, in this base
Two-stage stamped density experiment is carried out on plinth.Two-stage aggregate size is 16 >=d ＞ 9.5 and 9.5 >=d ＞ 4.75, design proportion
2 are shown in Table, stamped density result of the test is shown in Fig. 2.
2 two-stage of table aggregate size design proportion
As shown in Figure 2,16 >=d ＞ 9.5 and the particle diameter section aggregate ratios of 9.5 >=d ＞ 4.75 from 70 ︰ 30 be changed to 50 ︰ 50 when,
Downward trend is presented in porosity, and when being changed to after 50 ︰ 50, porosity gradually increases, before 50 ︰ 50 porosity is significantly less than
4 kinds of combinations afterwards.Hence, it can be determined that 16 >=d ＞ 9.5 and the particle diameter section aggregate ratios of 9.5 >=d ＞ 4.75 are 50 ︰ 50, herein
On the basis of carry out three rank stamped densities experiment.Three stage aggregate sizes are 16 >=d ＞ 4.75 and 4.75 >=d ＞ 2.36, design ratio
Example is shown in Table 3, and stamped density result of the test is shown in Fig. 3.
3 three stage of table aggregate size design proportion
From the figure 3, it may be seen that the particle diameter section aggregate ratios of 16 >=d ＞ 4.75mm and 4.75 >=d ＞ 2.36 are changed to 40 ︰ from 70 ︰ 30
When 60, downward trend is presented in porosity, and when being changed to 30 ︰ 70, porosity increased.Hence, it can be determined that 16 >=d ＞
4.75 and 4.75 >=d ＞ 2.36m particle diameter section aggregates ratios are 40 ︰ 60, carry out quadravalence stamped density experiment on this basis.Quadravalence
Section aggregate size is 16 >=d ＞ 2.36 and 2.36 >=d ＞ 0.075, and design proportion is shown in Table 4, and stamped density result of the test is shown in Fig. 4.
4 four stage of table aggregate size design proportion
As shown in Figure 4,16 >=d ＞ 2.36 and the particle diameter section aggregate ratios of 2.36 >=d ＞ 0.075 are changed to 30 ︰ 70 from 70 ︰ 30
When, there is valley in 60 ︰ 40 in porosity.Hence, it can be determined that 16 >=d ＞ 2.36 and the particle diameter section aggregates of 2.36 >=d ＞ 0.075
Ratio is 60 ︰ 40.
Tested according to four stage stamped densities, it may be determined that aggregate near optimal grading, be shown in Table 5.
The aggregate near optimal grading of table 5
| Synthesize aggregate | 16 >=d ＞ 13.2 | 13.2 >=d ＞ 9.5 | 9.5 >=d ＞ 4.75 | 4.75 >=d ＞ 2.36 | 2.36 >=d ＞ 0.075 |
| Grading (%) | 5 | 7 | 12 | 36 | 40 |
(2) further according to the aggregate near optimal match ratio of table 5, different aggregate ratio, bitumen aggregate ratio, contents of ground slag and cement are carried out
The water conservancy project room-temperature asphalt concrete orthogonal test of content, determines optimum mix.To particle diameter d (mm) scopes 16 >=d ＞'s 9.5
Aggregate content, 9.5 >=d ＞ 4.75 aggregate content, 4.75 >=d ＞ 2.36 aggregate content, 2.36 >=d ＞ 0.075 aggregate
Seven content, bitumen aggregate ratio, contents of ground slag and cement content factors carry out orthogonal test, and the evaluation criterion of orthogonal test is water conservancy project room
The Marshall stability and porosity of warm bituminous concrete, finally show that raw material proportioning scope of the present invention is：16mm >=particle diameter ＞
9.5mm aggregate 8~13%, 9.5mm >=particle diameter ＞ 4.75mm aggregate 16~21%, 4.75mm >=particle diameter ＞ 2.36mm bone
Material 25~26%, 2.36mm >=particle diameter ＞ 0.075mm aggregate 38~40%, particle diameter≤0.075mm filler are 6.0%；Oil
Stone ratio is 6.5~7.0%, and described bitumen aggregate ratio represents room-temperature asphalt weight and the ratio between foregoing aggregate and filler gross weight.It is preferred that
Room-temperature asphalt concrete material match ratio be shown in Table 6.
The room-temperature asphalt concrete mix of table 6
Embodiment 1
Aggregate and miberal powder are all made of granite, and mineral aggregate mass percent is：Particle diameter d (mm) scopes are in 16 >=d ＞ 9.5
Aggregate be 8%, 9.5 >=d ＞ 4.75 aggregate is 20%, 4.75 >=d ＞ 2.36 aggregate is 26%, 2.36 >=d ＞ 0.075
Aggregate be 40%, d≤0.075 cement and granite mineral powder filling materials, respectively account for 3.0%；Bitumen aggregate ratio is 6.7%.It will screen
Aggregate pour into stirring container and be heated to 150 DEG C and stir, will be using the room temperature of blending type room-temperature asphalt liquefier production
Pitch pours into stirring container and stirred, and the filler that cement and granite miberal powder form is poured into stirring container and stirred equal
It is even, continue to asphalt mixture heating, until the moisture in discharge room-temperature asphalt, so as to which the room-temperature asphalt of the present invention be prepared
Concrete.
Embodiment 2
Aggregate and miberal powder are all made of limestone, and mineral aggregate mass percent is：Particle diameter d (mm) scopes are 16 >=d ＞'s 9.5
Aggregate is 13%, 9.5 >=d ＞ 4.75 aggregate is 16%, 4.75 >=d ＞ 2.36 aggregate is 25%, 2.36 >=d ＞ 0.075
Aggregate be 40%, d≤0.075 cement and limestone mineral powder filling materials, respectively account for 3.0%；Bitumen aggregate ratio is 6.6%.By what is screened
Aggregate pours into stirring container and is heated to 150 DEG C and stirs, and the room temperature using blending type room-temperature asphalt liquefier production is dripped
Green grass or young crops pours into stirring container and stirred, and the filler that cement and limestone miberal powder form is poured into stirring container and stirred, after
Continue to asphalt mixture heating, until the moisture in discharge room-temperature asphalt, so as to which the room-temperature asphalt coagulation of the present invention be prepared
Soil.
Embodiment 3
Aggregate and miberal powder are all made of limestone, and mineral aggregate mass percent is：Particle diameter d (mm) scopes are 16 >=d ＞'s 9.5
Aggregate is 12%, 9.5 >=d ＞ 4.75 aggregate is 17%, 4.75 >=d ＞ 2.36 aggregate is 25%, 2.36 >=d ＞ 0.075
Aggregate be 40%, d≤0.075 cement and limestone mineral powder filling materials, respectively account for 3.0%；Bitumen aggregate ratio is 6.6%.By what is screened
Aggregate pours into stirring container and is heated to 150 DEG C and stirs, and the room temperature using blending type room-temperature asphalt liquefier production is dripped
Green grass or young crops pours into stirring container and stirred, and the filler that cement and limestone miberal powder form is poured into stirring container and stirred, after
Continue to asphalt mixture heating, until the moisture in discharge room-temperature asphalt, so as to which the room-temperature asphalt coagulation of the present invention be prepared
Soil.
Embodiment 4
Aggregate and miberal powder are all made of dolomite, and mineral aggregate mass percent is：Particle diameter d (mm) scopes are in 16 >=d ＞ 9.5
Aggregate be 10%, 9.5 >=d ＞ 4.75 aggregate is 21%, 4.75 >=d ＞ 2.36 aggregate is 25%, 2.36 >=d ＞
0.075 aggregate is the cement and dolomite mineral powder filling materials of 38%, d≤0.075, respectively accounts for 3.0%；Bitumen aggregate ratio is 6.7%.Will sieve
The aggregate chosen pours into stirring container and is heated to 150 DEG C and stirs, by using blending type room-temperature asphalt liquefier production
Room-temperature asphalt pours into stirring container and stirred, and the filler that cement and dolomite miberal powder form is poured into stirring container and stirred
Uniformly, continue to asphalt mixture heating, until the moisture in discharge room-temperature asphalt, so as to which the drip of the room temperature of the present invention be prepared
Blue or green concrete.
By the water conservancy project room-temperature asphalt concrete that is prepared of the present invention according to《Bituminous concrete facing of earth-rock dam and core-wall are set
Count specification》(DL/T5411-2009) basic performance test is carried out to it, mainly including herein below：Permeability, tensile property,
Compressive property, water stabilizing and bending property etc., testing result is shown in Table 7.
The water conservancy project room-temperature asphalt concrete basic performance indices of table 7
The water conservancy project room-temperature asphalt concrete that the present invention is prepared and the domestic built rockfill dam with asphalt concrete core in part
Conventional compaction type bituminous concrete basic performance is relatively shown in Table 8 used by impervious core.
The water conservancy project room-temperature asphalt concrete of table 8 is compared with the domestic built engineering bituminous concrete basic performance in part
As can be seen from Table 7, the room-temperature asphalt concrete basic performance that the present invention is prepared meets《Earth and rockfill dam pitch mixes
Coagulate native panel and core-wall design specification》(DL/T5411-2009) technical requirements.As can be seen from Table 8, the present invention is prepared
Room-temperature asphalt concrete and the built rockfill dam with asphalt concrete core impervious core of Some Domestic used by compaction type pitch
The basic performance of concrete is similar, so as to further prove that the room-temperature asphalt concrete that the present invention is prepared can be used for water conservancy
The leakage preventing structure of hydroelectric project.
Claims (9)
- A kind of 1. room-temperature asphalt concrete, it is characterised in that：It is prepared by the raw material of following percentage by weight：16mm >=particle diameter ＞ 9.5mm aggregate 8~13%, 9.5mm >=particle diameter ＞ 4.75mm aggregate 16~21%, 4.75mm >=particle diameter ＞ 2.36mm's Aggregate 25~26%, 2.36mm >=particle diameter ＞ 0.075mm aggregate 38~40%, particle diameter≤0.075mm filler is 6.0%； Bitumen aggregate ratio is 6.5~7.0%, and described bitumen aggregate ratio represents room-temperature asphalt weight and the ratio between foregoing aggregate and filler gross weight；Institute The aggregate stated is at least one of granite, limestone or dolomite；Described filler is made up of cement and miberal powder；Described ore deposit Powder is at least one of granite powder, grey rock dust or dolomite rock powder.
- 2. room-temperature asphalt concrete according to claim 1, it is characterised in that：Prepared by the raw material of following percentage by weight Form：16mm >=particle diameter ＞ 9.5mm aggregate 8%, 9.5mm >=particle diameter ＞ 4.75mm aggregate 20%, 4.75mm >=particle diameter ＞ 2.36mm aggregate 26%, 2.36mm >=particle diameter ＞ 0.075mm aggregate 40%, particle diameter≤0.075mm filler are 6.0%； Bitumen aggregate ratio is 6.7%；Described aggregate is granite, and described miberal powder is granite powder.
- 3. room-temperature asphalt concrete according to claim 1, it is characterised in that：Prepared by the raw material of following percentage by weight Form：16mm >=particle diameter ＞ 9.5mm aggregate 10%, 9.5mm >=particle diameter ＞ 4.75mm aggregate 21%, 4.75mm >=particle diameter ＞ 2.36mm aggregate 25%, 2.36mm >=particle diameter ＞ 0.075mm aggregate 38%, particle diameter≤0.075mm filler are 6.0%； Bitumen aggregate ratio is 6.7%；Described aggregate is granite, and described miberal powder is granite powder.
- 4. room-temperature asphalt concrete according to claim 1, it is characterised in that：Prepared by the raw material of following percentage by weight Form：16mm >=particle diameter ＞ 9.5mm aggregate 13%, 9.5mm >=particle diameter ＞ 4.75mm aggregate 16%, 4.75mm >=particle diameter ＞ 2.36mm aggregate 25%, 2.36mm >=particle diameter ＞ 0.075mm aggregate 40%, particle diameter≤0.075mm filler are 6.0%； Bitumen aggregate ratio is 6.6%；Described aggregate is limestone, and described miberal powder is grey rock dust.
- 5. room-temperature asphalt concrete according to claim 1, it is characterised in that：Prepared by the raw material of following percentage by weight Form：16mm >=particle diameter ＞ 9.5mm aggregate 12%, 9.5mm >=particle diameter ＞ 4.75mm aggregate 17%, 4.75mm >=particle diameter ＞ 2.36mm aggregate 25%, 2.36mm >=particle diameter ＞ 0.075mm aggregate 40%, particle diameter≤0.075mm filler are 6.0%； Bitumen aggregate ratio is 6.6%；Described aggregate is limestone, and described miberal powder is grey rock dust.
- 6. room-temperature asphalt concrete according to claim 1, it is characterised in that：Prepared by the raw material of following percentage by weight Form：16mm >=particle diameter ＞ 9.5mm aggregate 8%, 9.5mm >=particle diameter ＞ 4.75mm aggregate 20%, 4.75mm >=particle diameter ＞ 2.36mm aggregate 26%, 2.36mm >=particle diameter ＞ 0.075mm aggregate 40%, particle diameter≤0.075mm filler are 6.0%； Bitumen aggregate ratio is 6.7%；Described aggregate is dolomite, and described miberal powder is dolomite rock powder.
- 7. room-temperature asphalt concrete according to claim 1, it is characterised in that：Prepared by the raw material of following percentage by weight Form：16mm >=particle diameter ＞ 9.5mm aggregate 10%, 9.5mm >=particle diameter ＞ 4.75mm aggregate 21%, 4.75mm >=particle diameter ＞ 2.36mm aggregate 25%, 2.36mm >=particle diameter ＞ 0.075mm aggregate 38%, particle diameter≤0.075mm filler are 6.0%； Bitumen aggregate ratio is 6.7%；Described aggregate is dolomite, and described miberal powder is dolomite rock powder.
- 8. the room-temperature asphalt concrete according to any one of claim 1~7, it is characterised in that：Described filler is by waiting weight Cement and the miberal powder composition of amount.
- 9. the preparation method of the room-temperature asphalt concrete described in any one of claim 1~8, it is characterised in that：Including following step Suddenly：Aggregate is heated to not less than 150 DEG C and stirred after pouring into stirring container, is mixed after then adding room-temperature asphalt, then adds Mixed after entering filler, then exclude moisture.
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| CN114105571A (en) * | 2021-12-23 | 2022-03-01 | 上海建工建材科技集团股份有限公司 | Machine-made sand self-compacting rock-fill concrete material and preparation method thereof |
| CN118373622A (en) * | 2024-05-20 | 2024-07-23 | 广东龙盛达新材料科技有限公司 | Wear-resistant recycled asphalt concrete and preparation process thereof |
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| KR100813164B1 (en) * | 2007-09-05 | 2008-03-17 | 한국휴로드 (주) | Highly durable pitched asphalt concrete and its manufacturing method |
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| CN101973726A (en) * | 2010-09-25 | 2011-02-16 | 钱卫胜 | Porous pavement partially taking steel slag as coarse aggregate |
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| KR100813164B1 (en) * | 2007-09-05 | 2008-03-17 | 한국휴로드 (주) | Highly durable pitched asphalt concrete and its manufacturing method |
| CN101948272A (en) * | 2010-09-25 | 2011-01-19 | 钱卫胜 | Rubber bituminous mixture partially using slag as coarse aggregate |
| CN101973726A (en) * | 2010-09-25 | 2011-02-16 | 钱卫胜 | Porous pavement partially taking steel slag as coarse aggregate |
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