CN107117871A - The chopped asphalts of basalt fibre OGFC 13 of one kind incorporation - Google Patents

The chopped asphalts of basalt fibre OGFC 13 of one kind incorporation Download PDF

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Publication number
CN107117871A
CN107117871A CN201710406126.2A CN201710406126A CN107117871A CN 107117871 A CN107117871 A CN 107117871A CN 201710406126 A CN201710406126 A CN 201710406126A CN 107117871 A CN107117871 A CN 107117871A
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China
Prior art keywords
chopped
basalt fibre
ogfc
incorporation
asphalts
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CN201710406126.2A
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CN107117871B (en
Inventor
康爱红
王胜
肖鹏
吴正光
李波
陆如洋
曹佳伟
伏伟俐
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Yangzhou University
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Yangzhou University
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02Macromolecular compounds
    • C04B26/26Bituminous materials, e.g. tar, pitch
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C7/00Coherent pavings made in situ
    • E01C7/08Coherent pavings made in situ made of road-metal and binders
    • E01C7/18Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
    • E01C7/26Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders mixed with other materials, e.g. cement, rubber, leather, fibre
    • E01C7/262Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders mixed with other materials, e.g. cement, rubber, leather, fibre with fibrous material, e.g. asbestos; with animal or vegetal admixtures, e.g. leather, cork
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474Uses not provided for elsewhere in C04B2111/00
    • C04B2111/0075Uses not provided for elsewhere in C04B2111/00 for road construction

Abstract

The invention discloses the chopped asphalts of basalt fibre OGFC 13 of one kind incorporation, by percentage to the quality, the compound includes following component and constituted:SBS modified pitch 4.4% ~ 4.7%, chopped basalt fibre 0.274% ~ 0.299%, mineral aggregate 93.1% ~ 95.3%, the high sticks 0.296% ~ 0.4% of HVA.The present invention mixes appropriate chopped basalt fibre in prepared asphalt, can not only improve water stability, can also improve high temperature resistance stability, and easy to operate, cost-effective.

Description

The chopped basalt fibre OGFC-13 asphalts of one kind incorporation
Technical field
The invention belongs to highway structure investigation of materials field, and in particular to the chopped basalt fibre OGFC-13 drips of one kind incorporation Blue or green compound.
Background technology
Open-shelf range (Open Graded Friction Course, abbreviation OGFC) refers to use large porosity Asphalt making, road table rainwater can be drained inside it rapidly, with integrating antiskid, noise reduction, anti-dazzle, seep water Road pavement material, be typically used as layer or upper layer and middle surface layer above drainage pavement.Pushed away with the application of drainage pavement Extensively, as the topmost surface material OGFC of drainage pavement usage amount sharp increase.
With developing rapidly for China's economy, it is bright that heavy load, high flow capacity and channelization is presented in the traffic of highway Aobvious the features such as, to the quality requirement more and more higher of bituminous paving.In addition, freezing disaster, height thermoperiod alternating and acid-rain corrosion Bituminous paving can be also set substantial amounts of early disease phenomenon occur etc. natural phenomena.There is high temperature easily to trickle due to asphalt material, Low temperature, which is easily hardened, to become fragile and the shortcomings of response to temperature is big, seriously limits application of the asphalt material in engineering, therefore to pitch It is modified, improving the pavement performance of pitch turns into the urgent task of research.Fibre modifier is because it is to the significant modification of pitch Effect causes the extensive concern of researcher, wherein studying more has basalt fibre, lignin fibre, polyester fine Dimension, glass fibre etc..
Water-permeating pitch mixed material is significant saturating with it as a kind of open gradation asphalt with the space that is interconnected The function of water, good antiskid performance and reduction pavement temperature is at home and abroad widely applied.At present, China has put into effect Two relevant porous pavement pavement performances require specification, i.e.,《Asphalt pavement design criterion》(JTGD50-2006) and《Highway asphalt Pavement construction technical specification》(JTGF40-2004).The voidage of water-permeating pitch mixed material is more than 18%, and rainwater can pass through face Table reduces surface gathered water, contact of the fortified tyre with road surface by the rapid discharge path table of pumping equipment, is splash while eliminating driving Water smoke, improve visibility, improve road surface running vehicle security;Voidage is larger so that road surface has coarse macro-texture, from And frictional behaviour is improved, automobile is had higher anti-slide performance when running at high speed;
But at the same time, water-permeating pitch mixed material still suffers from more problem in practice:Durability is poor, due to it Voidage is big, so easily being corroded by water, makes asphalt membrane aging, accelerates pavement damage;Production cost is high, pervious asphalt mixing Material uses high-viscosity modified asphalt, and the cost of raw material is high;The mixing time is longer than plain asphalt compound, mixes and stirs temperature than common drip Blue or green compound is high, so production cost is high;Maintenance cost is high, by the lotus of vehicle during water-permeating pitch mixed material summer use Load is acted on, and easily produces rut.
The content of the invention
It is chopped basalt fibre OGFC-13 asphalts the purpose of the present invention is to propose to one kind incorporation, by pitch The appropriate chopped basalt fibre of compound incorporation, can not only improve water stability, can also improve high temperature resistance stability, increase The intensity and high temperature resistant and the stable performance of water of strong asphalt, can be chronically in exposure in sunshine, can be used for again big Applied widely in rainy day gas, service life is long, cost-effective.
The purpose of the present invention is achieved through the following technical solutions:
The chopped basalt fibre OGFC-13 asphalts of one kind incorporation, by percentage to the quality, the compound includes Following component composition:SBS modified pitch 4.4%~4.7%, chopped basalt fibre 0.274%~0.299%, mineral aggregate 93.1%~95.3%, the high sticks 0.296%~0.4% of HVA.
Further, mineral aggregate gathers materials and miberal powder including thickness, wherein, miberal powder accounts for the 2% of mineral aggregate gross mass;During thickness is gathered materials 1# material, 2# material, 3# material account for 33%, 47%, 5.5% and the 12.5% of mineral aggregate gross mass respectively with 4# material;Thickness material of gathering materials is Basalt, miberal powder is that granularity is the levigate limestone of below 0.075mm.
Further, the basalt fibre length that is chopped is 9mm, and accounts for the 0.3% of mineral aggregate gross mass.
Further, the bitumen aggregate ratio of mineral aggregate and SBS modified pitch is 4.8%.
Further, the mass values of the high sticks of HVA and SBS modified pitch are 8:92.
A kind of above-mentioned preparation method for mixing the basalt fibre OGFC-13 asphalts that are chopped, comprises the following steps:
(1) finished product SBS modified pitch is first heated to molten condition in 165 ± 5 DEG C of baking ovens, be incubated standby;
(2) gather materials and more than miberal powder 6h respectively at the thickness in preheating mineral aggregate at 195 ± 5 DEG C;
(3) mix pot is heated to 170 ± 5 DEG C of mix temperature, first the thickness after preheating gathered materials in addition mix pot 15~18s of mix, then chopped basalt fibre and the high stick mix 90s of HVA are mixed, add step (1) and be incubated standby SBS Modified pitch 90~95s of mix, miberal powder 90~95s of mix after finally incorporation is preheated, a kind of incorporation for being made described are chopped Basalt fibre OGFC-13 asphalts.
Compared with prior art, the present invention has advantage with following:
(1) present invention adds chopped basalt fibre in described asphalt, to improve asphalt The exposure or rain drop erosion of high temperature resistance stability, and water stability, the either southern sun, all without destruction institute of the present invention The road surface that the compound stated is made, surface evenness is good, and being capable of prolonging service life of pavement;
(2) the chopped basalt fibre OGFC-13 asphalts of incorporation of the present invention, are chopped using economical and practical Basalt fibre improves performance, reduces the cost of bituminous paving.
Embodiment
A kind of chopped basalt fibre OGFC-13 pitches of incorporation of the present invention are mixed with reference to specific embodiment Material is described further.
Chopped basalt fibre is the novel high-performance asphalt mixed material modifier occurred in recent years, and it is to be sprayed by volcano The natural basalt formed is sent out as raw material, is added to after being crushed in melting furnaces, after being melted at 1450 DEG C~1500 DEG C, is led to The continuous fiber of platinum-rhodium alloy bushing Defect formation is crossed, because basalt is extensive in distributed in nature, and diagenesis speed Degree is fast, calls its " inexhaustible ".Also, in the whole production process of basalt fibre, without industrial wastewater, give up The generation of gas and other industrial refuses.
Incorporation of the present invention is chopped basalt fibre OGFC-13 asphalts, gathers materials and the overall level of filler is matched somebody with somebody Scope is as follows:
Embodiment 1:
Finished product SBS modified pitch is first heated to molten condition in 165 DEG C of baking ovens, is incubated standby in 195 DEG C of baking ovens Preheating 11760g thicknesses are gathered materials and 240g miberal powders (granularity is below 0.075mm limestone) more than 6h, and mix pot is heated To 170 DEG C of mix temperature, then the 11760g thicknesses after preheating are gathered materials the (quality that wherein 1# material, 2# material, 3# material are expected with 4# Respectively 3960g, 5640g, 660g, 1500g) mix pot mix 15s is added, mix 36g chopped basalt fibre and 50.1g The high stick mix 90s of HVA, add after the standby SBS modified pitch mix 90s of the above-mentioned insulations of 552g, incorporation preheating 240g miberal powder mix 90s, with rolling forming machine roller-compaction, are made a kind of described chopped basalt fibre OGFC-13 of incorporation Asphalt is molded rut plate test specimen;The pitch bitumen aggregate ratio is 4.8%.
Embodiment 2:
Finished product SBS modified pitch is first heated to molten condition in 165 DEG C of baking ovens, is incubated standby in 195 DEG C of baking ovens Preheating 3920g thicknesses are gathered materials and 80g miberal powders (granularity is below 0.075mm limestone) more than 6h, and mix pot is heated to 170 DEG C of mix temperature, then the 3920g thicknesses after preheating are gathered materials, and (wherein 1# material, 2# material, 3# expect the quality point expected with 4# Wei 1320g, 1880g, 220g, 500g) add mix pot mix 15s, mix 12g chopped basalt fibre and 16.7g The high stick mix 90s of HVA, the 80g ore deposits added after the standby SBS modified pitch mix 90s of the above-mentioned insulations of 192g, incorporation preheating Powder mix 90s, marshal piece is prepared using compacting process, a kind of chopped basalt fibre OGFC-13 drips of the incorporation for being made described Blue or green compound is molded marshal piece;The pitch bitumen aggregate ratio is 4.8%.
OGFC-13 asphalts (mixing the chopped basalt fibres of 9mm) and comparative example 1- described in 1-2 of the embodiment of the present invention The wheel tracking test of other types asphalt described in 2 the results are shown in Table 1, and Marshall Test the results are shown in Table 2.
Comparative example 1:
OGFC-13 asphalts (not mixing chopped basalt fibre) refer to that asphalt does not mix chopped basalt Fiber.Do not influence the mix-design of compound without chopped basalt fibre, do not change pitch under any volume and mix The level for closing material is matched somebody with somebody, it is only necessary to bitumen aggregate ratio is finely adjusted according to actual needs, its asphalt content ratio reduces 0.2% when adding fiber
The preparation method of above-mentioned SBS modified asphalt mixtures, comprises the following steps:
(1) finished product SBS modified pitch is first heated to molten condition in 165 ± 5 DEG C of baking ovens, be incubated standby;
(2) gather materials and more than miberal powder 6h respectively at the thickness in preheating mineral aggregate at 195 ± 5 DEG C;
(3) mix pot is heated to 170 ± 5 DEG C of mix temperature, first the thickness after preheating gathered materials in addition mix pot Mix 15-18s, then the high stick mix 90s of HVA are mixed, add step (1) and be incubated standby SBS modified pitch mixs 90- 95s, finally the miberal powder mix 90-95s after incorporation preheating, is made described OGFC-13 asphalts.
Comparative example 2:
OGFC-13 asphalts (the chopped basalt fibre 6mm of incorporation) refer to the chopped Black Warrior of asphalt incorporation Rock fiber is 6mm.
The preparation method of above-mentioned modified asphalt mixture, comprises the following steps:
(1) finished product SBS modified pitch is first heated to molten condition in 165 ± 5 DEG C of baking ovens, be incubated standby;
(2) gather materials and more than miberal powder 6h respectively at the thickness in preheating mineral aggregate at 195 ± 5 DEG C;
(3) mix pot is heated to 170 ± 5 DEG C of mix temperature, first the thickness after preheating gathered materials in addition mix pot Mix 15-18s, then chopped basalt fibre and the high stick mix 90s of HVA are mixed, add step (1) and be incubated standby SBS Modified pitch mix 90-95s, finally the miberal powder mix 90-95s after incorporation preheating, is made described OGFC-13 pitches mixing Material.
The difference OGFC-13 asphalt mixture in track test results of table 1
As it can be seen from table 1 the high temperature stability performance of contrast compound not of the same race, all with the chopped basalt fibre of incorporation And improve, the dynamic stability sequence of compound is followed successively by:OGFC-13 asphalts (mixing the chopped basalt fibres of 9mm) > OGFC-13 asphalts (mixing the chopped basalt fibres of 6mm) > OGFC-13 asphalts (do not mix chopped basalt fine Dimension) on the whole, with the incorporation of chopped basalt fibre, high-temperature behavior increases, but the chopped basalt fibres of incorporation 9mm High-temperature behavior more preferably and meet specification.
The Marshall Test result of table 2
From table 2 it can be seen that the water stabilizing of contrast compound not of the same race, all with the chopped basalt fibre of incorporation Improve, the stability sequence of compound is followed successively by:OGFC-13 asphalts (mixing the chopped basalt fibres of 9mm) > OGFC-13 Asphalt (mixing the chopped basalt fibres of 6mm) > OGFC-13 asphalts (not mixing chopped basalt fibre) are overall For, with the incorporation of chopped basalt fibre, water stabilizing increases, but the water of incorporation 9mm basalt fibres is stable More preferably and meet specification.
The present invention is described by way of example above, but the invention is not restricted to above-mentioned specific embodiment, it is all to be based on Any change or modification that the present invention is done belong to the scope of protection of present invention.

Claims (8)

  1. The basalt fibre OGFC-13 asphalts 1. one kind incorporation is chopped, it is characterised in that by percentage to the quality, described Compound is constituted including following component:SBS modified pitch 4.4%~4.7%, the basalt fibre 0.274% that is chopped~ 0.299%th, the high stick 0.296%~0.4% of mineral aggregate 93.1%~95.3%, HVA.
  2. The basalt fibre OGFC-13 asphalts 2. incorporation as claimed in claim 1 is chopped, it is characterised in that mineral aggregate bag Thickness is included to gather materials and miberal powder, wherein, miberal powder accounts for the 2% of mineral aggregate gross mass;Thickness is gathered materials, and middle 1# material, 2# expect, 3# expects and 4# material point 33%, 47%, 5.5% and the 12.5% of mineral aggregate gross mass is not accounted for.
  3. The basalt fibre OGFC-13 asphalts 3. incorporation as claimed in claim 2 is chopped, it is characterised in that thickness collection Material material is basalt.
  4. The basalt fibre OGFC-13 asphalts 4. incorporation as claimed in claim 2 is chopped, it is characterised in that miberal powder is Granularity is the levigate limestone of below 0.075mm.
  5. The basalt fibre OGFC-13 asphalts 5. incorporation as claimed in claim 1 is chopped, it is characterised in that be chopped profound Military rock fibre length is 9mm, and accounts for the 0.3% of mineral aggregate gross mass.
  6. The basalt fibre OGFC-13 asphalts 6. incorporation as claimed in claim 1 is chopped, it is characterised in that mineral aggregate and The bitumen aggregate ratio of SBS modified pitch is 4.8%.
  7. The basalt fibre OGFC-13 asphalts 7. incorporation as claimed in claim 1 is chopped, it is characterised in that HVA height is viscous The ratio of agent and SBS modified pitch quality is 8:92.
  8. The basalt fibre OGFC-13 asphalts 8. incorporation as claimed in claim 1 is chopped, it is characterised in that:Gather materials with The overall grading limit of filler is as follows:
CN201710406126.2A 2017-06-02 2017-06-02 It is a kind of to mix the basalt fibre OGFC-13 asphalt that is chopped Active CN107117871B (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107761502A (en) * 2017-11-06 2018-03-06 扬州大学 A kind of Perpetual Pavements Structural
CN107759139A (en) * 2017-11-09 2018-03-06 扬州大学 Highly anti-fatigue cracking resistance water-permeating pitch mixed material and preparation method thereof
CN107916601A (en) * 2017-11-06 2018-04-17 扬州大学 A kind of high resistance to deformation asphalt pavement structure
CN108360327A (en) * 2018-01-30 2018-08-03 沈阳工业大学 A kind of permanent seal cooling advanced composite material (ACM) road structure and construction method
CN108863172A (en) * 2018-08-08 2018-11-23 泰州学院 A kind of open gradation basalt fibre asphalt and preparation method thereof
CN109320138A (en) * 2018-10-30 2019-02-12 湖北津泰环保科技有限公司 A kind of modified asphalt mixture and preparation method thereof that anti-time property is good
CN109537404A (en) * 2018-11-29 2019-03-29 江苏北极星交通产业集团有限公司 A kind of cold in place recycling plate form rubber and cold-regenerated road surface construction method
CN109810523A (en) * 2019-01-29 2019-05-28 刘建军 Pitch reinforcing agent and its application in modified heavy traffic paving asphalt
CN112225491A (en) * 2020-09-27 2021-01-15 扬州大学 Fiber-modified SMA-13 asphalt mixture with excellent long-term performance

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CN101712803A (en) * 2009-10-16 2010-05-26 浙江石金玄武岩纤维有限公司 Method for enhancing bituminous mixture by adopting chopped basalt fibers

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CN101712803A (en) * 2009-10-16 2010-05-26 浙江石金玄武岩纤维有限公司 Method for enhancing bituminous mixture by adopting chopped basalt fibers

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107761502A (en) * 2017-11-06 2018-03-06 扬州大学 A kind of Perpetual Pavements Structural
CN107916601A (en) * 2017-11-06 2018-04-17 扬州大学 A kind of high resistance to deformation asphalt pavement structure
CN107759139A (en) * 2017-11-09 2018-03-06 扬州大学 Highly anti-fatigue cracking resistance water-permeating pitch mixed material and preparation method thereof
CN108360327A (en) * 2018-01-30 2018-08-03 沈阳工业大学 A kind of permanent seal cooling advanced composite material (ACM) road structure and construction method
CN108863172A (en) * 2018-08-08 2018-11-23 泰州学院 A kind of open gradation basalt fibre asphalt and preparation method thereof
CN109320138A (en) * 2018-10-30 2019-02-12 湖北津泰环保科技有限公司 A kind of modified asphalt mixture and preparation method thereof that anti-time property is good
CN109320138B (en) * 2018-10-30 2021-03-16 湖北津泰环保科技有限公司 Modified asphalt mixture with good weather resistance and preparation method thereof
CN109537404A (en) * 2018-11-29 2019-03-29 江苏北极星交通产业集团有限公司 A kind of cold in place recycling plate form rubber and cold-regenerated road surface construction method
CN109810523A (en) * 2019-01-29 2019-05-28 刘建军 Pitch reinforcing agent and its application in modified heavy traffic paving asphalt
CN109810523B (en) * 2019-01-29 2021-05-14 上海同沥新材料科技有限公司 Asphalt reinforcing agent and application thereof in modified heavy traffic asphalt
CN112225491A (en) * 2020-09-27 2021-01-15 扬州大学 Fiber-modified SMA-13 asphalt mixture with excellent long-term performance

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