CN104276786B - A kind of method that premixing bitumastic prepares self-compaction bituminous concrete - Google Patents
A kind of method that premixing bitumastic prepares self-compaction bituminous concrete Download PDFInfo
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- CN104276786B CN104276786B CN201410487245.1A CN201410487245A CN104276786B CN 104276786 B CN104276786 B CN 104276786B CN 201410487245 A CN201410487245 A CN 201410487245A CN 104276786 B CN104276786 B CN 104276786B
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Abstract
A kind of method that premixing bitumastic prepares self-compaction bituminous concrete, mat formation suitable for railway subgrade surface water-protected enclosure layer, highway, this method utilizes the pitch batching plant prefabricated bituminous matizhi in rear base；Prefabricated bituminous matizhi is transported to by the broken remelting in scene according to actual requirement of engineering, the similar small type mobile devices mixed and stirred using Cooker cars or can heat complete the mixing of self-compaction bituminous concrete, it is easy to the long-distance transportation of self-compaction bituminous concrete, demand especially suitable for water-protected enclosure layer material along the line is disperseed, be not suitable for building asphalt blending station, and the area of building material scarcity etc., maneuverability, the input of asphalt blending station need to be set up in line of project by overcoming traditional construction, save the cost for building the work such as batching plant, and the free time production that can rent existing batching plant is prefabricated, production cost further reduces, and the production of premixing bitumastic is not limited by construction seasons.
Description
Technical field
The present invention relates to a kind of preparation method of concrete, and in particular to a kind of premixing bitumastic prepares self-compaction drip
The method of blue or green concrete.
Background technology
Self-compaction bituminous concrete because of itself mix and stir, be molded, the characteristic such as structure, there are good barrier properties, freeze-thawing resistant, resistance to
The features such as oily, anti-aging, speed of application is soon, adaptive deformation ability and self-healing capability is strong, suitable for crack resistance and durability
The engineering having higher requirements, such as cold area's road；The engineering being had higher requirements to water proofing property, deformation compliance and durability, such as steel
Bridge bridge floor；To impervious and durability high requirement engineering, such as concrete bridge deck, hydraulic anti-seepage body；Large-scale construction equipment can not
Into or operation side critical constraints region, such as railway subgrade surface water-protected enclosure layer；Need quickly to repair, it is impossible to influence
The engineering of traffic, such as railway subgrade surface water-protected enclosure layer pit repairing.
However, the same with other most of hot-mixed asphaltic concretes, small lot production hot-mix asphalt mixture cost is higher,
And transportation range has a great influence to it, and there is dependence to batching plant.Design a kind of cost is low, be easy to long-distance transportation and
The simple preparation method of process, become the direction of prior art research.
The content of the invention
Goal of the invention：In order to overcome the deficiencies in the prior art, the present invention provides the present invention and provides a kind of premixing drip
The method that blue or green matizhi prepares self-compaction bituminous concrete, using prefabricated bitumastic block and packaged type Cooker cars or
The mixing that the similar small type mobile devices mixed and stirred complete self-compaction bituminous concrete can be heated, overcoming traditional construction needs to set along the line
The shortcomings that putting asphalt blending station, maneuverability, cost are relatively low.
Technical scheme：A kind of method that premixing bitumastic prepares self-compaction bituminous concrete, including the drip of sticky oil
Blue or green or modified pitch, fine aggregate and filler；Characterized in that, this method comprises the following steps：
(1) bitumastic is prepared：Asphalt blending station is by sticky asphalt or modified pitch, satisfactory fine aggregate
Or sand and miberal powder heating mixing, form hot bitumastic；
(2) prefabricated section is prepared：Hot bitumastic in step (1) is prepared into bitumastic block, natural cooling
It is stored in afterwards as prefabricated section at shady and cool dry；
(3) broken block is formed：Above-mentioned prefabricated section is crushed, obtains broken block, the broken block particle diameter is not more than
5cm；
(4) remelting is stirred：By broken block be transported to scene input be pre-heated to 180~230 DEG C heating and thermal insulation transport
Cooker cars can heat remelting in the similar small type mobile devices mixed and stirred, while allow Cooker stirring vane with 0.5~20
Rev/min speed average rate rotate, stir 30~180 minutes；
(5) overstriking aggregate mixes and stirs：Coarse aggregate is added in the step (4) with 0.5~10 rev/min of speed average rate mix,
Mixing time is 30~180 minutes；
(6) uniformity and mobility of visual discharging opening asphalt, stand can be put into after flowing sexual satisfaction requirement
Paving uses；In this step, the additive of needs can be added in 60 minutes before discharging according to the actual requirements.
Bitumastic block described in step (1) is 50~60mm of thickness square.Rule are made in bitumastic block
Shape then is readily transported and stored, while convenient calculating dosage.
Pitch described in step (1) is satisfactory sticky asphalt or modified pitch.
Fine aggregate described in step (1) is basalt or diabase or limestone；The filler is the ore deposit that lime stone is ground
Powder.
It is to carry out at a lower temperature that step (1) described bitumastic, which is mixed and stirred, is molded, to reduce bitumen blowing.
Beneficial effect：
(1) previously prepared bitumastic block, using cooker cars or the similar small type mobile devices mixed and stirred can be heated add
Hot mix is transported to scene simultaneously, is easy to long-distance transportation.
(2) demand to water-protected enclosure layer material along the line disperses, is not suitable for building asphalt blending station and building material
Obvious effect is played in the area of scarcity etc., and process maneuverability, drip need to be set up in line of project by significantly reducing traditional construction
The input of blue or green blending station.
(3) premixing bitumastic be without producing at the scene, so production is not by construction seasons and job site environment
Limitation.
Brief description of the drawings
Fig. 1 is bitumastic block schematic diagram of the present invention
Embodiment
The present invention is further described below in conjunction with the accompanying drawings.
A kind of method that premixing bitumastic prepares self-compaction bituminous concrete, suitable for railway subgrade surface water-protected enclosure
Layer, highway are mated formation.Including pitch, fine aggregate and filler；Characterized in that, this method comprises the following steps：
(1) bitumastic is prepared：In asphalt blending station by sticky asphalt or modified pitch, satisfactory thin collection
Material or sand and miberal powder heating mixing, form hot bitumastic；
(2) prefabricated section is prepared：Hot bitumastic in step (1) is prepared into bitumastic block, natural cooling
It is stored in afterwards as prefabricated section at shady and cool dry；
(3) broken block is prepared：According to being actually needed for engineering, above-mentioned prefabricated section is crushed, obtains broken block, it is described
Broken block particle diameter is not more than 5cm；Broken work in rear base or can need job site to carry out, and not limited by place.
(4) remelting is stirred：By crush block input be pre-heated to 180~230 DEG C heating and thermal insulation transport Cooker cars or
The similar small type mobile devices remelting mixed and stirred can be heated, while allows Cooker stirring vane with 0.5~20 rev/min of speed
Average rate rotates, and stirs 30~180 minutes；
(5) overstriking aggregate mixes and stirs：Coarse aggregate is added in the step (4) with 0.5~20 rev/min of speed average rate mix,
Mixing time is 30~180 minutes；
(6) uniformity and mobility of visual discharging opening asphalt, stand can be put into after flowing sexual satisfaction requirement
Paving uses；In this step, the additive of needs can be added in 60 minutes before discharging according to the actual requirements.
Preferably, the bitumastic is 300mm × 300mm, thickness about 50~60mm block.By bitumastic
The shape that rule is made in block is readily transported and stored, while convenient calculating dosage.
Preferably, the pitch is sticky asphalt or modified pitch, is that performance rate is not low for hot-zone, warm area
In 70# bi tumenf orr oad or modified pitch；For Han Qu, be performance rate be 90# or 110# bi tumenf orr oad or
Performance rate is not less than PG64-28 modified pitch.
Preferably, the fine aggregate is basalt or diabase or limestone, and the sand is Machine-made Sand；
Preferably, the filler is the miberal powder that lime stone is ground.
During construction, it should configure sufficient amount of Cooker cars according to scale of the project, be easy to self-compaction bituminous concrete
Long-distance transportation, can also use can heat the similar small type mobile devices that mix and stir.
In step (1), matrix pitch heating-up temperature is that 130~140 DEG C of (asphalt), modified pitch are heated to 170-
180 DEG C, 0~3mm, 3~5mm specification fine aggregates be heated to 140~150 DEG C, limestone dust heating-up temperature be 70~100 DEG C.
Described above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (4)
1. a kind of method that premixing bitumastic prepares self-compaction bituminous concrete, including using the following raw material, sticky oil
Pitch or modified pitch, fine aggregate, miberal powder and coarse aggregate；Characterized in that, this method comprises the following steps：
(1) bitumastic is prepared：Sticky asphalt is first heated to 130-140 DEG C or modified pitch respectively in rear base
Be heated to 170-180 DEG C, 0~3mm, 3~5mm specification fine aggregates be heated to 140~150 DEG C, miberal powder heating-up temperature be 70~100
DEG C, then above-mentioned raw materials are heated to 140~180 DEG C of mixings 60~90 seconds in blending station, form hot uniform bitumastic；
(2) prefabricated section is prepared：The hot uniformly bitumastic in step (1) is prepared into bitumastic in rear base
Block, it is stored in as prefabricated section at shady and cool dry after natural cooling；
(3) broken block is formed：Above-mentioned prefabricated section is crushed, obtains broken block, the broken block particle diameter is not more than 5cm；
(4) remelting is stirred：Broken block is transported into scene input to be pre-heated to 180~230 DEG C of heating and thermal insulation transport vehicle or can add
Remelting in the similar small type mobile devices that heat is mixed and stirred, while allow its stirring vane to turn with 0.5~20 rev/min of speed average rate
It is dynamic, stir 30~180 minutes；
(5) overstriking aggregate mixes and stirs：Coarse aggregate is added in step (4) with 0.5~20 rev/min of speed average rate mix, stirring
Time is 30~180 minutes；
(6) uniformity and mobility of visual discharging opening asphalt, can put into pave after flowing sexual satisfaction requirement makes
With；In this step, the additive of needs can be added in 60 minutes before discharging according to the actual requirements.
2. the method that a kind of premixing bitumastic as claimed in claim 1 prepares self-compaction bituminous concrete, its feature exist
In bitumastic block described in step (1) is 50~60mm of thickness square.
3. the method that a kind of premixing bitumastic as claimed in claim 1 prepares self-compaction bituminous concrete, its feature exist
In fine aggregate described in step (1) is basalt or diabase or limestone；The miberal powder is the miberal powder that lime stone is ground.
4. the method that a kind of premixing bitumastic as claimed in claim 1 prepares self-compaction bituminous concrete, its feature exist
In the fine aggregate is sand, and described sand is Machine-made Sand.
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| CN201410487245.1A CN104276786B (en) | 2014-09-22 | 2014-09-22 | A kind of method that premixing bitumastic prepares self-compaction bituminous concrete |
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| CN201410487245.1A CN104276786B (en) | 2014-09-22 | 2014-09-22 | A kind of method that premixing bitumastic prepares self-compaction bituminous concrete |
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| CN104276786A CN104276786A (en) | 2015-01-14 |
| CN104276786B true CN104276786B (en) | 2018-01-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109555019A (en) * | 2019-01-10 | 2019-04-02 | 广东省路桥建设发展有限公司 | The method of more slurry type asphalt repairing asphalt paving of steel bridge |
| CN109626877A (en) * | 2019-01-31 | 2019-04-16 | 招商局重庆交通科研设计院有限公司 | A kind of Prefabricated asphalt and preparation method thereof |
| CN109650785A (en) * | 2019-01-31 | 2019-04-19 | 招商局重庆交通科研设计院有限公司 | Prefabricated bituminous cements |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103866667A (en) * | 2012-12-10 | 2014-06-18 | 中国石油天然气股份有限公司 | Semi-flexible heavy-duty pavement paving structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100523387C (en) * | 2006-05-26 | 2009-08-05 | 中国水利水电科学研究院 | Cold construction seal coat for asphalt concrete anti-seepage panel and construction technique thereof |
| CN103669152A (en) * | 2013-11-04 | 2014-03-26 | 沈阳市政集团有限公司 | Road surface construction method of ultrathin stone mastic asphalt mixture |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103866667A (en) * | 2012-12-10 | 2014-06-18 | 中国石油天然气股份有限公司 | Semi-flexible heavy-duty pavement paving structure |
Non-Patent Citations (1)
| Title |
|---|
| "沥青玛蹄脂混合料高温性能研究";谭诗亮;《2012华南理工大学工程硕士学位论文》;20121231;第1页摘要 * |
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