CN101255011A - Basalt mineral fiber used for asphalt concrete - Google Patents

Basalt mineral fiber used for asphalt concrete Download PDF

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Publication number
CN101255011A
CN101255011A CNA2008100307940A CN200810030794A CN101255011A CN 101255011 A CN101255011 A CN 101255011A CN A2008100307940 A CNA2008100307940 A CN A2008100307940A CN 200810030794 A CN200810030794 A CN 200810030794A CN 101255011 A CN101255011 A CN 101255011A
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China
Prior art keywords
fiber
basalt
asphalt concrete
road surface
content
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CNA2008100307940A
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Chinese (zh)
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肖菁
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Individual
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Priority to CNA2008100307940A priority Critical patent/CN101255011A/en
Publication of CN101255011A publication Critical patent/CN101255011A/en
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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
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
    • C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
    • C03C3/087—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal containing calcium oxide, e.g. common sheet or container glass
    • 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
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/38—Fibrous materials; Whiskers
    • C04B14/46—Rock wool ; Ceramic or silicate fibres
    • C04B14/4643—Silicates other than zircon
    • C04B14/4668—Silicates other than zircon of vulcanic origin
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00034—Physico-chemical characteristics of the mixtures
    • C04B2111/00215—Mortar or concrete mixtures defined by their oxide composition
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Civil Engineering (AREA)
  • Road Paving Structures (AREA)

Abstract

A basalt mineral fiber used in asphalt concrete prepared by minerals such as the basalt, has the following chemical compositions by weight proportion: 42-48.3% of SiO2, 11-16.2% of Al2O3, 8-12.8% of CaO, 11-14% of MgO, 4.8-8.6% of FemOn and 0.8-2.3% of TiO2, and 4.6-7.8% of other components (K2O, NaO, B2O3, Cr2O3 and MnO2); the average particle size of the fiber is 4mm-8mm and the average fiber diameter is 0.004mm-0.006mm. By integrating proper fiber and the asphalt concrete, the high-temperature rut deformation resistant performance, low-temperature cracking resistant performance and fatigue damage resistant performance of the asphalt concrete road surface is greatly improved, the early-stage water damage of the road surface is effectively prevented and the service life of the road surface is greatly prolonged.

Description

The basalt mineral fiber that is used for bituminous concrete
Technical field
The present invention relates to a kind of basalt mineral fiber, further be meant the basalt mineral fiber that is used for bituminous concrete.
Background technology
In the highway asphalt concrete pavement structure, need a kind ofly advantages of higher tensile strength and Young's modulus be arranged and adapt to the asphalt construction process requirement, can when mixing and stirring for 230 ℃, never degenerate and can homodisperse fiber as carrier increasing asphalt membrane thickness, increase asphalt content, to prevent that pitch runs off, in compound, make fiber stabilizer and use and can keep the material of effectiveness for a long time; The fiber that is used for bituminous concrete in the prior art all is difficult to the cost performance effect that reaches satisfied.
Summary of the invention
The technical problem to be solved in the present invention is, deficiency at the prior art existence, a kind of basalt mineral fiber that is used for bituminous concrete is proposed, the anti-rutting deformation ability of bituminous concrete pavement high temperature, anti-low-temperature cracking ability, antifatigue damage ability can have been improved after mixing it in bituminous concrete in right amount greatly, effectively improve and prevent road surface early water infringement, raising service life of road surface.
Technical scheme of the present invention is, the described basalt mineral fiber that is used for pitch coagulation scholar is that raw material is made with the basalt mineral, it is characterized in that,
(1) its chemical ingredients is (by weight percentage):
SiO 2：42％～48.3％，Al 2O 3：11％～16.2％，
CaO：8％～12.8％， MgO：11％～14％，
Fe mO n(Fe 2O 3+FeO)：4.8％～8.6％，TiO 2：0.8％～2.3％，
Other composition: (K 2O, NaO, B 2O 3, Cr 2O 3, MnO 2) 4.6%～7.8%;
(2) its physics kenel is:
Mean particle size: 4mm～8mm;
Fiber diameter: 0.004mm～0.006mm;
Non-fibrous material content:
A. the granule content of mean diameter＞0.063mm≤25%,
B. granule content content≤5% of mean diameter＞0.25mm,
Fiber moisture :≤0.1%;
Organic content :≤0.1%;
More than all be the weight percentage of benchmark in the total amount.
Below the present invention is made into explanation.
The present invention adopts basalt and other routine to mix to join ore and the slag composition is a raw material, and wherein basalt ore consumption is 35%～55% of a raw material gross weight, other mix join ore and slag composition composition by acidity quotient M K: 2.3 control proportionings, the irregular granular basalt mineral fiber of after the cupola furnace high-temperature fusion, making with four centrifuging, after destaticing, packing.
Can greatly improve the anti-rutting deformation ability of bituminous concrete pavement high temperature, anti-low-temperature cracking ability, antifatigue damage ability after mixing in the bituminous concrete with volume 0.4%～0.6% (asphalt weight percent) basalt mineral fiber of the present invention, effectively improve and prevent road surface early water infringement, raising service life of road surface.Below be test-results:
Test 1: the contrast such as the following table 1 of this filamentary material performance of asphalt mixture after of adding 0.4% in the AC-13 asphalt.
Table 1 is according to the conclusion analytical table of AC-13 Target Mixture Ratio contrast design experiment report
Figure A20081003079400051
Obtaining by the JTG F40-2004 of Chinese transportation portion " asphalt highway construction technique normalizing " requirement of above testing data made.
Test 2: this filamentary material performance of asphalt mixture after such as the following table 2 of adding 0.4% in the SMA-13 asphalt.
Table 2 is according to the conclusion analytical table of SMA-13 Target Mixture Ratio design experiment report
Figure A20081003079400052
Obtaining by the JTGF40-2004 of Chinese transportation portion " asphalt highway construction technique normalizing " requirement of above testing data made.
The explanation of above testing data improves extremely significantly in the technical feature of using the present invention's " basalt mineral fiber that is used for bituminous concrete " back to bituminous concrete pavement, can significantly increase bituminous pavement work-ing life, reduces the road surface overall life cycle cost.
Know-why of the present invention is, first, because fiber of the present invention is superfine, mean diameter 0.004～0.006mm has bigger specific surface area, it plays absorption, tackify and stabilization in pitch, increase asphalt membrane thickness, so show and add that the anti-water damage and the resistance of aging of bituminous concrete strengthens behind this fiber; Second, fiber of the present invention has unique three-dimensional to the fibre space structure of intersecting, therefore it to the bituminous stabilization just be better than two dimension to short chopping fiber, simultaneously, it has than other organic fibrid advantages of higher tensile strength and Young's modulus, so enhancing, toughness reinforcing pitch that can be effective, this shows the raising of rutting resistance; The 3rd, fibre chemistry character of the present invention is more stable, is insoluble to pitch or plays the chemistry reflection with it, so also the regeneration of bituminous concrete, the protection environment that economizes on resources have been created new way after using this fiber.
The present invention makes the cellucotton that mean particle size is 4～8mm with fiber, and destatic processing before packing for solving the dispersiveness of fiber in compound mixes and stirs.Fiber fabrication process of the present invention adopts to make the production technology manufacturing fiber of fiber behind the molten blast furnace with four centrifuging, so just greatly reduces cost, has improved output, and cost performance is extremely excellent.
As known from the above, the present invention is the basalt mineral fiber that is used for bituminous concrete, the anti-rutting deformation ability of bituminous concrete pavement high temperature, anti-low-temperature cracking ability, antifatigue damage ability can have been improved after mixing it in bituminous concrete in right amount greatly, effectively improve and prevent road surface early water infringement, raising service life of road surface.
Embodiment
A kind of basalt mineral fiber that is used for bituminous concrete, adopt basalt and other routine to mix to join ore and the slag composition is a raw material, wherein basalt ore consumption is 35%～55% of a raw material gross weight, other mix join ore and slag composition composition by acidity quotient M K: 2.3 control proportionings; Raw material is mixed after the cupola furnace high-temperature fusion is made fiber with four centrifuging then, make irregular granular " basalt mineral fiber that is used for bituminous concrete " through tablets press again.Destatic, pack with fluid-tight bag.
The chemical ingredients of this basalt mineral fiber is (by weight percentage): SiO 2: 45.3%, Al 2O 3: 13.2%, CaO:11.8%, MgO:13.8%, Fe mO n(Fe 2O 3+ FeO): 7.6%, TiO 2: 1.8%, other composition: 6.5%; The physics kenel of fiber of the present invention is:
Mean particle size: 6.2mm;
Fiber diameter: 0.0053mm;
Non-fibrous material content:
A) granule content of mean diameter＞0.063mm: 19%,
B) the granule content content of mean diameter＞0.25mm: 4.7%,
Fiber moisture: 0.03%;
Organic content: 0.09%;
More than all be the weight percentage of benchmark in the total amount.

Claims (1)

1, a kind of basalt mineral fiber that is used for bituminous concrete is that raw material is made with mineral such as basalt, it is characterized in that,
(1) its chemical ingredients is (by weight percentage):
SiO 2：42％～48.3％，Al 2O 3：11％～16.2％，
CaO：8％～12.8％， MgO：11％～14％，
Fe mO n(Fe 2O 3+FeO)：4.8％～8.6％，TiO 2：0.8％～2.3％，
Other composition: (K 2O, NaO, B 2O 3, Cr 2O 3, MnO 2) 4.6%～7.8%;
(2) its physics kenel is:
Mean particle size: 4mm～8mm;
Fiber diameter: 0.004mm～0.006mm;
Non-fibrous material content:
A. the granule content of mean diameter＞0.063mm≤25%,
B. granule content content≤5% of mean diameter＞0.25mm,
Fiber moisture :≤0.1%;
Organic content :≤0.1%;
More than all be the weight percentage of benchmark in the total amount.
CNA2008100307940A 2008-03-12 2008-03-12 Basalt mineral fiber used for asphalt concrete Pending CN101255011A (en)

Priority Applications (1)

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CN101255011A true CN101255011A (en) 2008-09-03

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103013143A (en) * 2012-12-13 2013-04-03 肖菁 High-elasticity modulus fiber composite asphalt
CN103044877A (en) * 2012-12-13 2013-04-17 肖菁 Composite material containing modified basalt fiber and polymer and preparation method thereof
CN104402315A (en) * 2014-10-30 2015-03-11 安徽省科普产品工程研究中心有限责任公司 Material used for rapid pavement repair and performance testing method thereof
CN105086481A (en) * 2015-08-21 2015-11-25 中国路桥工程有限责任公司 Waste rubber and plastic polymer alloy stable type rubber modified asphalt and preparation technology thereof
CN106865975A (en) * 2017-04-13 2017-06-20 肖菁 A kind of basalt fibre particle and its preparation method and application

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103013143A (en) * 2012-12-13 2013-04-03 肖菁 High-elasticity modulus fiber composite asphalt
CN103044877A (en) * 2012-12-13 2013-04-17 肖菁 Composite material containing modified basalt fiber and polymer and preparation method thereof
CN103013143B (en) * 2012-12-13 2013-09-04 肖菁 High-elasticity modulus fiber composite asphalt
CN103044877B (en) * 2012-12-13 2014-03-05 肖菁 Composite material containing modified basalt fiber and polymer and preparation method thereof
CN104402315A (en) * 2014-10-30 2015-03-11 安徽省科普产品工程研究中心有限责任公司 Material used for rapid pavement repair and performance testing method thereof
CN105086481A (en) * 2015-08-21 2015-11-25 中国路桥工程有限责任公司 Waste rubber and plastic polymer alloy stable type rubber modified asphalt and preparation technology thereof
CN106865975A (en) * 2017-04-13 2017-06-20 肖菁 A kind of basalt fibre particle and its preparation method and application
CN106865975B (en) * 2017-04-13 2018-08-14 肖菁 A kind of basalt fibre particle and its preparation method and application

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Open date: 20080903