CN105885391A - Novel modifier with basalt fibers for asphalt mixtures and method for preparing novel modifier - Google Patents
Novel modifier with basalt fibers for asphalt mixtures and method for preparing novel modifier Download PDFInfo
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- CN105885391A CN105885391A CN201610462508.2A CN201610462508A CN105885391A CN 105885391 A CN105885391 A CN 105885391A CN 201610462508 A CN201610462508 A CN 201610462508A CN 105885391 A CN105885391 A CN 105885391A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/08—Polyurethanes from polyethers
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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
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/16—Halogen-containing compounds
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/10—Silicon-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/06—Polyurethanes from polyesters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/017—Additives being an antistatic agent
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
Abstract
The invention discloses a novel modifier with basalt fibers for asphalt mixtures and a method for preparing the novel modifier. The novel modifier is made of the basalt fibers and high-adhesion wetting agents. The novel modifier comprises, by weight, 85-98 parts of the basalt fibers, 0-10 parts of film-forming agents A, 0-10 parts of film-forming agents B, 0.1-0.6 part of antistatic agents, 0.2-3.5 parts of coupling agents, 0.1-2 parts of lubricants and 0.1-1.3 parts of modified nanometer SiO2. The method includes mixing the film-forming agents A, the film-forming agents B, the antistatic agents, the coupling agents, the lubricants and the modified nanometer SiO2 with one another to obtain mixtures and stirring the mixtures; wetting and wrapping the basalt fibers and cutting the basalt fibers into short pieces so as to obtain the novel modifier. The novel modifier and the method have the vantages that irritating odor rarely can be generated in modifier preparation procedures; the novel modifier can be added into the asphalt mixtures, accordingly, various road properties of the asphalt mixtures can be effectively improved, the anti-rutting performance and the fatigue cracking resistance of pavements can be improved, and the service lives of roads can be greatly prolonged.
Description
Technical field
The present invention relates to a kind of ground surfacing material, particularly relate to a kind of use the novel of direct putting type high-adhesiveness modifying agent
Basalt fibre asphalt mixed material modifier and preparation method, belong to traffic and overlay field of material technology.
Background technology
Along with developing rapidly of highway in China carrier, automobile quantity increases day by day, and vehicle maximizes, heavy duty, overload
Phenomenon is the most increasingly severe.Many road surfaces be completed occurred as soon as rut in the near future, to gather around the early diseases such as bag the most structural
Destroying, this will directly affect the service life of bituminous paving, and also show asphalt concrete road surface simultaneously and cannot meet
Highroad carrier is to its high temperature Rut resistance stability, crack resistance at low-temperature, the requirement of water resistant evil ability.Therefore, to drip
Blue or green compound is modified, and the properties strengthening asphalt concrete pavement is particularly important.
In terms of two, currently mainly improve the performance of asphalt: one is the grating by improving asphalt
Improve pavement performance, achieve good using effect in some aspects；On the other hand it is each by improving asphalt
The performance of composition material improves the pavement performance of compound, the Main Means used at present be add in asphalt material various
Additive, as formed various modified pitch by adding SBS, PE, waste rubber powder etc..Fiber is added in asphalt,
It it is considered as a kind of new tool improving Asphalt Mixture Performance.
Basalt fibre, compared with other fibers, has that operating temperature range is big, excellent in mechanical performance, chemical stability
Good, ageing resistace is good, water stability is good and the outstanding advantage such as electric heating good insulation preformance.Add basalt fibre to Colophonium to mix
Close in material, can effectively strengthen high temperature Rut resistance, anti-low-temperature cracking and the anti-fatigue performance of asphalt.Basalt fibre exists
In whole production process, there is no the generation of industrial wastewater, waste gas and other industrial refuses, be described as " new material of 21 century ".
Basalt fibre smooth surface and fiber surface present chemical inertness, during as the reinforcement of polymer matrix composites
Combination with interlaminar resin is bad, and the composite prepared is difficult to give full play of the mechanical property that basalt fibre is excellent.Cause
When this basalt fibre produces, surface all needs to scribble wetting agent, and conventional basalt fibre wetting agent has epoxy emulsion, polyurethane
Emulsion and polyester emulsion three kinds.But these several wetting agents are unsuitable in the asphalt of high temperature using.
So, the basalt fibre on road needs to be modified at the novel wetting agent of surface-coated, improves composite
Interface compatibility so that it preferably plays its advantage, improve bituminous pavement property.
By adding in asphalt through modified basalt fibre, significantly carry it appeared that its pavement performance has
Height, in addition to high-temperature behavior, improves most notably anti-fatigue performance, and fatigue effect number of times is in matrix pitch AC-13C compound
Improve about 80%.Therefore, a kind of asphalt pavement rut resisting ability, anti-crack ability and anti-fatigue ability of being effectively improved is developed
The development tool of China's road is of great significance by basalt fibre base modifying agent.
Summary of the invention
It is an object of the invention to phenomenon and the deficiencies in the prior art that early disease occurs for China's bituminous paving, carry
A kind of novel basalt fiber asphalt mixed material modifier and preparation method are supplied.This modifying agent can be effectively improved bituminous paving
Rut resistance and anti-fatigue performance, and there is good cryogenic property, preparation process temperature is low, penetrating odor is little.
The object of the present invention is achieved like this, a kind of novel basalt fiber asphalt mixed material modifier, its each composition
Quality group becomes: basalt fibre 85～98 parts, film former A0～10 parts, film former B0～10 parts, antistatic additive 0.1～0.6
Part, coupling agent 0.2～3.5 parts, lubricant 0.1～2 parts, modified Nano SiO20.1～1.3 part.
Described basalt fibre is using the natural basalt formed by volcanic eruption as raw material, joins after being crushed
In melting furnaces, after melting at 1450 DEG C～1500 DEG C, the continuous fiber formed by platinum-rhodium alloy bushing Defect, rule
Lattice be a basalt fibre have 200～300 bundle basalt fibres, fracture strength >=2000MPa that a basalt fibre has,
Elongation at break≤3.0%, oil absorbency >=50%；Described film former A is PAUR emulsion, by polyester diol, two
In glycol, adipic acid, dihydromethyl propionic acid, tartaric acid, triethylamine, triethanolamine, acetone five kinds or more than five kinds reagent stir
Mix, deionization, de-acetone obtain PAUR emulsion, and concentration controls 45～53%, and pH value is 7.0～7.5, and viscosity is
280～320mPa；Described film former B is EU emulsion, by isophorone diisocyanate, toluene di-isocyanate(TDI)
Four or more in polyether Glycols, ethylenediamine, triethylamine, dimethylformamide and dihydromethyl propionic acid, acetone is
Primary raw material, preparation draws EU emulsion, and concentration controls 45～53%, and pH value is 7.0～7.5, and viscosity is 560
～700mPa；Described antistatic additive is cationic antistatic agent NH4CL solution；Described coupling agent is commercially available amido functional group silane
With deionized water, the hydrating solution that pH value is 4～6 of acetic acid mix and blend；Described lubricant is commercial stearic acid polyoxyethylene
One or more mixture in fat, fatty acid amide, polyester, concentration is 48%～55%；Described modified Nano SiO2,
Particle diameter 200～350nm, with deionized water as disperse medium, is disperseed by ultrasonic disperse and churned mechanically way,
To modified Nano SiO2Suspension, pH value controls 5～6.
Preferably, each composition quality of described modifying agent consists of: basalt fibre 92 parts, film former A3.2 part, film former
B3.2 part, 0.3 part of antistatic additive, coupling agent 0.6 part, lubricant 0.4 part, modified Nano SiO20.3 part.
Preferably, each composition quality of described modifying agent consists of: basalt fibre 92 parts, film former A6.4 part, film former
B0 part, 0.3 part of antistatic additive, coupling agent 0.6 part, lubricant 0.4 part, modified Nano SiO20.3 part.
Preferably, each composition quality of described modifying agent consists of: basalt fibre 92 parts, film former A0 part, film former
B6.4 part, 0.3 part of antistatic additive, coupling agent 0.6 part, lubricant 0.4 part, modified Nano SiO20.3 part.
Preferably, each composition quality of described modifying agent consists of: basalt fibre 95 parts, film former A2 part, film former B2
Part, 0.2 part of antistatic additive, coupling agent 0.4 part, lubricant 0.25 part, modified Nano SiO20.15 part.
The preparation method of the present invention a kind of novel basalt fiber asphalt mixed material modifier, including following content:
By 0.1～1.3 part of modified Nano SiO2Suspension instills 0～10 part of film former A and 0～10 part under agitation
In the mixed emulsion of film former B, continue high-speed stirred 1.5～2h.Be proportionally added into successively 0.1～2 part of lubricant, 0.1～0.6
Part antistatic additive, 0.2～3.5 part of coupling agent, continuously stirred 2～2.5h, obtain the liquid that white is homogeneous；
Liquid homogeneous for the white prepared is heated, by 85 in one long 2 meters, wide 0.5 meter, the saturation tank of deep 0.2 meter
～98 basalt fibre be coated in the homogeneous liquid of white, then driven by mechanical screws and drawn tie rod, general
Basalt fibre after coating is dried up by hair-dryer, and cutting machine is sheared, and obtains novel basalt fiber asphalt modified
Agent finished product, the homogeneous temperature of liquid of white is maintained at 70～80 DEG C, screw speed 5～20r/min.
In preparation method, saturation tank upper and lower part and surrounding install vibrating device, frequency of vibration 50～80Hz.
In this preparation method, hair-dryer is arranged on distance saturation tank discharging opening 1～2m.
A kind of application of described modifying agent, AC-13C grating, 100 parts；70# matrix pitch 4.5～6.2 parts；Modifying agent: 0
～0.7 part, breeze: 2～3 parts.
Described Colophonium is Nanjing 70# bi tumenf orr oad, and it is every that its performance indications are satisfied by A level 70# bi tumenf orr oad
Technical standard；Described AC-13C grating is gathered materials and is selected Zhenjiang Mao Di limestone；Zhenjiang high appearance limestone dust selected by described breeze；
Test material preparation and the required test of performance test: (1) gathers materials and breeze is by 180～190 DEG C, baking material 4～6h；(2)70#
Matrix pitch dries 1～2h by 130～140 DEG C；(3) by modifying agent and the dry mixing 90s that gathers materials；(4) 70# matrix pitch, mix are poured into
90s；(5) add breeze and puddle 90s；(6) marshal piece, rut plate and little beam deflection exemplar are prepared；(7) experimental test sum
According to finishing analysis.
The Advantageous Effects of the present invention:
1, modifying agent of the present invention is the basalt fiber material developed for bituminous paving, and the admixture of this material can be very
Big the raising rutting resistance of asphalt, cracking resistance, anti-fatigue performance etc..
2, the immersion fluid of modifying agent of the present invention is mainly composed of polyurethane, it is possible to improve the fracture of basalt fibre well
The mechanical property such as intensity, shear strength；Polyurethane and Colophonium also have the good compatibility and adhesiveness, beneficially modifying agent simultaneously
Dispersed in asphalt.
3, the modified Nano SiO in the immersion fluid of modifying agent of the present invention2When can make asphalt by pulling force, to Colophonium
There is provided bigger frictional force with basalt fibre interface, strengthen the resistance to tension of asphalt.
4, modifying agent of the present invention is asphalt mixed material modifier, compare strengthen equally the SBS of bituminous pavement property, SBR,
The modified pitch such as rubber powder, it is to avoid the problem that segregation phenomenon easily occurs in modified pitch.
5, modifying agent of the present invention is little at production process, asphalt mixture mixing forming process moderate stimulation abnormal smells from the patient, without harmful
Gas produces.
6, to prepare scheme with low cost for modifying agent of the present invention, simple to operate, and practical effect is obvious, is suitable for high-volume raw
Produce.
To sum up, the invention discloses a kind of novel basalt fiber asphalt mixed material modifier and preparation method thereof.This changes
Property agent is made up of basalt fibre and high-adhesiveness wetting agent, and modifying agent each constituent mass ratio is: basalt fibre 85～98 parts,
Film former A0～10 parts, film former B0～10 parts, antistatic additive 0.1～0.6 part, coupling agent 0.2～3.5 parts, lubricant 0.1～
2 parts, modified Nano SiO20.1～1.3 part.Preparation method includes following content: by film former A, film former B, antistatic additive, idol
Connection agent, lubricant, modified Nano SiO2Carry out mix and blend, then basalt fibre is carried out infiltration and wrap up in attached, chopped, obtain this
Invention modifying agent.Modifying agent of the present invention is little at preparation process moderate stimulation abnormal smells from the patient, and modifying agent of the present invention joins Colophonium mixing
In material, every pavement performance of asphalt can be effectively improved, improve road surface anti-rut behavior and resisting fatigue cracking performance, greatly
Width extends Road Service Life.
Detailed description of the invention
Describe technical scheme in detail below in conjunction with embodiment, but the invention is not restricted to following example.
Embodiment 1:
By film former A, film former B, antistatic additive, coupling agent, lubricant, modified Nano SiO2According to mass ratio 32:32:
3:6:4:3 mix and blend is also heated up to 70～80 DEG C in saturation tank.Specifically 3.2 parts film former A, 3.2 parts of film former B, 0.3
Part antistatic additive, 0.6 part of coupling agent, 0.4 lubricant, 0.3 modified Nano SiO2, in saturation tank, by 0.3 part of modified Nano
SiO2Suspension instills in the mixed emulsion of 3.2 parts of film former A and 3.2 parts of film former B under agitation, continues high-speed stirred
1.5～2 hours, then it is sequentially added into 0.4 part of lubricant, 0.3 part of antistatic additive, 0.6 part of coupling agent, more continuously stirred 2～2.5
Hour, obtain the liquid that white is homogeneous；In saturation tank, by liquid heating homogeneous for the white for preparing, temperature is maintained at 70
～80 DEG C；Wherein, saturation tank length 2 meters, wide 0.5 meter, deep 0.2 meter.
First 92 parts of basalt fibres being carried out pretreatment at a temperature of 40～50 DEG C, the process time is 1.5～2s, then
92 parts of basalt fibres are coated, afterwards by profound under the drive of rotary screw in the homogeneous liquid of 70～80 DEG C of white
Military rock fiber, by 2 meters of long saturation tanks, is i.e. driven by mechanical screws and is drawn tie rod, through blowing of saturation tank exit
Basalt fibre after coating is dried up by blower fan by hair-dryer, then shears it through cutter, obtains the novel Black Warrior
Rock Fiber Asphalt Mixture modifying agent finished product (we are properly termed as modifying agent 1), sheared length is 6mm.Screw speed controls 5
～10r/min；Blower power is 2000W, and saturation tank upper and lower part and surrounding are provided with vibrating device, frequency of vibration 50～
80Hz。
A kind of application of novel basalt fiber asphalt mixed material modifier, application example 1:
First will gather materials and breeze is by 180～190 DEG C, baking material 4～6h, 70# matrix pitch dries 1～2h by 130～140 DEG C,
Mixing machine for asphalt mixture is preheated in advance more than mix temperature about 10 DEG C, the novel Black Warrior 0.3% embodiment 1 obtained
Rock Fiber Asphalt Mixture modifying agent and the dry mixing 90s that gathers materials, be subsequently poured into the 70# matrix pitch of 5.1%～5.3%, mix
90s, suspends stirring, adds breeze and continues to puddle 90s.Use compacting process to prepare marshal piece, be rolled into rolling forming machine
Type, the longest 300mm, wide 300mm, high 50mm rut plate, cut lengths are long 250mm, wide 30mm, the little beam deflection of high 35mm
Exemplar；Respectively these test specimens are carried out water stability, high-temperature stability and low-temperature cracking-resistance test, and whole to result of the test data
Reason is analyzed.Asphalt raw material and composition are shown in Table 1～3, and result of the test is shown in Table 4.
Embodiment 2:
By film former A, film former B, antistatic additive, coupling agent, lubricant, modified Nano SiO2According to mass ratio 64:0:
3:6:4:3 mix and blend is also heated up to 70～80 DEG C in saturation tank.Specifically 6.4 parts film former A, 0 part of film former B, 0.3 part
Antistatic additive, 0.6 part of coupling agent, 0.4 lubricant, 0.3 modified Nano SiO2, in saturation tank, by 0.3 part of modified Nano SiO2
Suspension instills in 6.4 parts of film former A emulsions under agitation, continuation high-speed stirred 1.5～2 hours, is then sequentially added into
0.4 part of lubricant, 0.3 part of antistatic additive, 0.6 part of coupling agent, more continuously stirred 2～2.5 hours, obtain the liquid that white is homogeneous
Body；In saturation tank, by liquid heating homogeneous for the white for preparing, temperature is maintained at 70～80 DEG C；Wherein, saturation tank length 2
Rice, wide 0.5 meter, deep 0.2 meter.
First 92 parts of basalt fibres being carried out pretreatment at a temperature of 40～50 DEG C, the process time is 1.5～2s, then
92 parts of basalt fibres are coated, afterwards by profound under the drive of rotary screw in the homogeneous liquid of 70～80 DEG C of white
Military rock fiber, by 2 meters of long saturation tanks, is i.e. driven by mechanical screws and is drawn tie rod, through blowing of saturation tank exit
Basalt fibre after coating is dried up by blower fan by hair-dryer, then shears it through cutter, obtains the novel Black Warrior
Rock Fiber Asphalt Mixture modifying agent (we are properly termed as modifying agent 2) finished product, sheared length is 6mm.Screw speed controls 5
～10r/min；Blower power is 2000W, and saturation tank upper and lower part and surrounding are provided with vibrating device, frequency of vibration 50～
80Hz。
A kind of application of described modifying agent, application example 2:
First will gather materials and breeze is by 180～190 DEG C, baking material 4～6h, 70# matrix pitch dries 1～2h by 130～140 DEG C,
Mixing machine for asphalt mixture is preheated in advance more than mix temperature about 10 DEG C, the novel Black Warrior 0.3% embodiment 2 obtained
Rock Fiber Asphalt Mixture modifying agent and the dry mixing 90s that gathers materials, be subsequently poured into the 70# matrix pitch of 5.1%～5.3%, mix
90s, suspends stirring, adds breeze and continues to puddle 90s.Use compacting process to prepare marshal piece, be rolled into rolling forming machine
Type, the longest 300mm, wide 300mm, high 50mm rut plate, cut lengths are long 250mm width, 30mm height, the little beam deflection of 35mm
Exemplar；Respectively these test specimens are carried out water stability, high-temperature stability and low-temperature cracking-resistance test, and whole to result of the test data
Reason is analyzed.Asphalt raw material and composition are shown in Table 1～3, and result of the test is shown in Table 4.
Embodiment 3:
By film former A, film former B, antistatic additive, coupling agent, lubricant, modified Nano SiO2According to mass ratio 0:64:
3:6:4:3 mix and blend is also heated up to 70～80 DEG C in saturation tank.Specifically 0 part film former A, 6.4 parts of film former B, 0.3 part
Antistatic additive, 0.6 part of coupling agent, 0.4 lubricant, 0.3 modified Nano SiO2, in saturation tank, by 0.3 part of modified Nano SiO2
Suspension instills in 6.4 parts of film former B emulsions under agitation, continuation high-speed stirred 1.5～2 hours, is then sequentially added into
0.4 part of lubricant, 0.3 part of antistatic additive, 0.6 part of coupling agent, more continuously stirred 2～2.5 hours, obtain the liquid that white is homogeneous
Body；In saturation tank, by liquid heating homogeneous for the white for preparing, temperature is maintained at 70～80 DEG C；Wherein, saturation tank length 2
Rice, wide 0.5 meter, deep 0.2 meter.
First 92 parts of basalt fibres being carried out pretreatment at a temperature of 40～50 DEG C, the process time is 1.5～2s, then
92 parts of basalt fibres are coated, afterwards by profound under the drive of rotary screw in the homogeneous liquid of 70～80 DEG C of white
Military rock fiber, by 2 meters of long saturation tanks, is i.e. driven by mechanical screws and is drawn tie rod, through blowing of saturation tank exit
Basalt fibre after coating is dried up by blower fan by hair-dryer, then shears it through cutter, obtains the novel Black Warrior
Rock Fiber Asphalt Mixture modifying agent (we are properly termed as modifying agent 3) finished product, sheared length is 6mm.Screw speed controls 5
～10r/min；Blower power is 2000W, and saturation tank upper and lower part and surrounding are provided with vibrating device, frequency of vibration 50～
80Hz。
A kind of application of described modifying agent, application example 3:
First will gather materials and breeze is by 180～190 DEG C, baking material 4～6h, 70# matrix pitch dries 1～2h by 130～140 DEG C,
Mixing machine for asphalt mixture is preheated in advance more than mix temperature about 10 DEG C, the novel Black Warrior 0.3% embodiment 3 obtained
Rock Fiber Asphalt Mixture modifying agent and the dry mixing 90s that gathers materials, be subsequently poured into the 70# matrix pitch of 5.1%～5.3%, mix
90s, suspends stirring, adds breeze and continues to puddle 90s.Use compacting process to prepare marshal piece, be rolled into rolling forming machine
Type, the longest 300mm, wide 300mm, high 50mm rut plate, cut lengths are long 250mm, wide 30mm, the little beam deflection of high 35mm
Exemplar；Respectively these test specimens are carried out water stability, high-temperature stability and low-temperature cracking-resistance test, and whole to result of the test data
Reason is analyzed.Asphalt raw material and composition are shown in Table 1～3, and result of the test is shown in Table 4.
Embodiment 4:
By film former A, film former B, antistatic additive, coupling agent, lubricant, modified Nano SiO2According to mass ratio 40:40:
4:8:5:3 mix and blend is also heated up to 75～80 DEG C in saturation tank.Specifically 2 parts film former A, 2 parts of film former B, 0.2 part resist
Electrostatic agent, 0.4 part of coupling agent, 0.25 lubricant, 0.15 modified Nano SiO2, in saturation tank, by 0.15 part of modified Nano SiO2
Suspension instills in the mixed emulsion of 2 parts of film former A and 2 parts of film former B under agitation, continues high-speed stirred 1.5～2 little
Time, then it is sequentially added into 0.25 part of lubricant, 0.2 part of antistatic additive, 0.4 part of coupling agent, more continuously stirred 2～2.5 hours,
To the liquid that white is homogeneous；In saturation tank, by liquid heating homogeneous for the white for preparing, temperature is maintained at 75～80 DEG C；
Wherein, saturation tank length 2 meters, wide 0.5 meter, deep 0.2 meter.
First 95 parts of basalt fibres being carried out pretreatment at a temperature of 40～50 DEG C, the process time is 1.5～2s, then
95 parts of basalt fibres are coated, afterwards by profound under the drive of rotary screw in the homogeneous liquid of 70～80 DEG C of white
Military rock fiber, by 2 meters of long saturation tanks, is i.e. driven by mechanical screws and is drawn tie rod, through blowing of saturation tank exit
Basalt fibre after coating is dried up by blower fan by hair-dryer, then shears it through cutter, obtains the novel Black Warrior
Rock Fiber Asphalt Mixture modifying agent (we are properly termed as modifying agent 4) finished product, sheared length is 6mm.Screw speed controls 8
～10r/min；Blower power is 2000W, and saturation tank upper and lower part and surrounding are provided with vibrating device, frequency of vibration 50～
80Hz.Wherein
A kind of application of described modifying agent, application example 4:
First will gather materials and breeze is by 180～190 DEG C, baking material 4～6h, 70# matrix pitch dries 1～2h by 130～140 DEG C,
Mixing machine for asphalt mixture is preheated in advance more than mix temperature about 10 DEG C, the novel Black Warrior 0.3% embodiment 4 obtained
Rock Fiber Asphalt Mixture modifying agent and the dry mixing 90s that gathers materials, be subsequently poured into the 70# matrix pitch of 5.1%～5.3%, mix
90s, suspends stirring, adds breeze and continues to puddle 90s.Use compacting process to prepare marshal piece, be rolled into rolling forming machine
Type, the longest 300mm, wide 300mm, high 50mm rut plate, cut lengths are long 250mm, wide 30mm, the little beam deflection of high 35mm
Exemplar；Respectively these test specimens are carried out water stability, high-temperature stability and low-temperature cracking-resistance test, and whole to result of the test data
Reason is analyzed.Asphalt raw material and composition are shown in Table 1～3, and result of the test is shown in Table 4.
Any one embodiment in above example 1-4, described basalt fibre is natural with formed by volcanic eruption
Basalt, as raw material, joins in melting furnaces after broken for natural basalt, after melting, passes through platinum at 1450 DEG C～1500 DEG C
The continuous fiber that rhodium alloy bushing Defect is formed, specification is, a described basalt fibre has 200～300 bundles
Basalt fibre, the fracture strength >=2000MPa of a described basalt fibre, elongation at break≤3.0%, oil absorbency >=
50%；Described film former A is PAUR emulsion, by polyester diol, diethylene glycol, adipic acid, dihydromethyl propionic acid, wine
In stone acid, triethylamine, triethanolamine, acetone five kinds or more than five kinds reagent stirrings, deionization, de-acetone obtain polyester-type and gather
Urethane emulsion, concentration controls 45～53%, and pH value is 7.0～7.5, and viscosity is 280～320mPa；Described film former B
For EU emulsion, by isophorone diisocyanate, tolylene diisocyanate polyether dihydroxylic alcohols, ethylenediamine, three second
Four or more in amine, dimethylformamide and dihydromethyl propionic acid, acetone is primary raw material, and preparation draws polyether-type
Polyaminoester emulsion, concentration controls 45～53%, and pH value is 7.0～7.5, and viscosity is 560～700mPa；Described antistatic additive is
Cationic antistatic agent NH4CL；Described coupling agent is amido functional group silane and the pH value of deionized water, acetic acid mix and blend is
The hydrating solution of 4～6；Described lubricant is one or more in stearic acid polyoxyethylene fat, fatty acid amide, polyester
Mixture, concentration is 48%～55%；Described modified Nano SiO2Particle diameter 200～350nm, is situated between as dispersion with deionized water
Matter, is disperseed by ultrasonic disperse and churned mechanically way, obtains modified Nano SiO2Suspension, pH value control 5～
6；
Table 1 formula of modifier designs
Table 2 modifying agent performance indications
Table 3 Bituminous Mixture Ratio (by weight)
| Sequence number | 70# substrate asphalt | Modifying agent | Gather materials |
| Application example 1 | 5.3 | 0.3 | 100 |
| Application example 2 | 5.4 | 0.3 | 100 |
| Application example 3 | 5.3 | 0.3 | 100 |
| Application example 4 | 5.5 | 0.3 | 100 |
| Comparison example | 5.1 | 0 | 100 |
Table 4 performance of asphalt mixture data
As shown in Table 4, asphalt adds direct putting type basalt fibre base asphalt mixed material modifier of the present invention
After, its pavement performance all has raising in various degree.Especially low-temperature cracking-resistance and anti-fatigue performance improves substantially, at AC-13C
In grating, the asphalt times of fatigue of admixture modifying agent improves nearly 2 times.Meanwhile, the production process of this modifying agent and use
Environment all will not be worked the mischief by process, and environmental benefit highlights；The Colophonium mixing of admixture direct putting type basalt fibre base modifying agent
Material can improve the quality of life of people, has good social benefit.
To sum up, by the present invention, it is contemplated that the effect reached:
1, it is shown in Table for novel basalt fiber property indices of the present invention below.
2. it is shown in Table for novel basalt fiber modified asphalt mixture performance indications of the present invention below.
Claims (10)
1. a novel basalt fiber asphalt mixed material modifier, it is characterised in that include following each composition quality: basalt
Fiber 85～98 parts, film former A0～10 parts, film former B0～10 parts, antistatic additive 0.1～0.6 part, coupling agent 0.2～3.5
Part, lubricant 0.1～2 parts, modified Nano SiO20.1～1.3 part.
Novel basalt fiber asphalt mixed material modifier the most according to claim 1, it is characterised in that described basalt
Fiber is using the natural basalt formed by volcanic eruption as raw material, joins in melting furnaces after broken for natural basalt,
After melting at 1450 DEG C～1500 DEG C, the continuous fiber formed by platinum-rhodium alloy bushing Defect, specification is, one
Described basalt fibre have 200～300 bundle basalt fibres, the fracture strength >=2000MPa of a described basalt fibre,
Elongation at break≤3.0%, oil absorbency >=50%.
Novel basalt fiber asphalt mixed material modifier the most according to claim 1, it is characterised in that described film former
A is PAUR emulsion, by polyester diol, diethylene glycol, adipic acid, dihydromethyl propionic acid, tartaric acid, triethylamine, three
In ethanolamine, acetone five kinds or more than five kinds reagent stirrings, deionization, de-acetone obtain PAUR emulsion, concentration
Controlling 45～53%, pH value is 7.0～7.5, and viscosity is 280～320mPa.
Novel basalt fiber asphalt mixed material modifier the most according to claim 1, it is characterised in that described one-tenth
Membrane B is EU emulsion, by isophorone diisocyanate, tolylene diisocyanate polyether dihydroxylic alcohols, ethylenediamine,
Four or more in triethylamine, dimethylformamide and dihydromethyl propionic acid, acetone is primary raw material, and preparation draws poly-
Ether-based polyurethane emulsion, concentration controls 45～53%, and pH value is 7.0～7.5, and viscosity is 560～700mPa.
Novel basalt fiber asphalt mixed material modifier the most according to claim 1, it is characterised in that described antistatic
Agent is cationic antistatic agent NH4CL。
Novel basalt fiber asphalt mixed material modifier the most according to claim 1, it is characterised in that described coupling agent
For amido functional group silane and deionized water, the hydrating solution that pH value is 4～6 of acetic acid mix and blend.
Novel basalt fiber asphalt mixed material modifier the most according to claim 1, it is characterised in that described lubricant
For one or more mixture in stearic acid polyoxyethylene fat, fatty acid amide, polyester, concentration is 48%～55%.
Novel basalt fiber asphalt mixed material modifier the most according to claim 1, it is characterised in that described modification is received
Rice SiO2Particle diameter 200～350nm, with deionized water as disperse medium, is carried out by ultrasonic disperse and churned mechanically way
Dispersion, obtains modified Nano SiO2Suspension, pH value controls 5～6.
9. the preparation method of a novel basalt fiber asphalt mixed material modifier, it is characterised in that comprise the steps:
(1) raw material of the component of following mass parts it is equipped with: basalt fibre 85～98 parts, film former A0～10 parts, film former B0
～10 parts, antistatic additive 0.1～0.6 part, coupling agent 0.2～3.5 parts, lubricant 0.1～2 parts, modified Nano SiO20.1～
1.3 part；
Wherein, described basalt fibre is using the natural basalt formed by volcanic eruption as raw material, is broken by natural basalt
Join after broken in melting furnaces, after melting at 1450 DEG C～1500 DEG C, formed by platinum-rhodium alloy bushing Defect
Continuous fiber, specification is, a described basalt fibre has 200～300 bundle basalt fibres, a described basalt fibre
Fracture strength >=2000MPa, elongation at break≤3.0%, oil absorbency >=50%；Described film former A is PAUR
Emulsion, by polyester diol, diethylene glycol, adipic acid, dihydromethyl propionic acid, tartaric acid, triethylamine, triethanolamine, acetone
Five kinds or more than five kinds reagent stirrings, deionization, de-acetone obtain PAUR emulsion, and concentration controls 45～53%,
PH value is 7.0～7.5, and viscosity is 280～320mPa；Described film former B is EU emulsion, different by isophorone two
Cyanate, tolylene diisocyanate polyether dihydroxylic alcohols, ethylenediamine, triethylamine, dimethylformamide and dihydromethyl propionic acid, acetone
In four or more be primary raw material, preparation draw EU emulsion, concentration controls 45～53%, pH value
Being 7.0～7.5, viscosity is 560～700mPa；Described antistatic additive is cationic antistatic agent NH4CL；Described coupling agent is ammonia
Base functional silanes and deionized water, the hydrating solution that pH value is 4～6 of acetic acid mix and blend；Described lubricant is stearic acid
One or more mixture in polyoxyethylene fat, fatty acid amide, polyester, concentration is 48%～55%；Described modification
Nano-meter SiO_22Particle diameter 200～350nm, with deionized water as disperse medium, is entered by ultrasonic disperse and churned mechanically way
Row dispersion, obtains modified Nano SiO2Suspension, pH value controls 5～6；
(2) by 0.1～1.3 part of modified Nano SiO2Suspension instills 0～10 part of film former A and 0～10 part of one-tenth under agitation
In the mixed emulsion of membrane B, continue high-speed stirred 1.5～2 hours, be then sequentially added into 0.1～2 part of lubricant, 0.1～0.6
Part antistatic additive, 0.2～3.5 part of coupling agent, more continuously stirred 2～2.5 hours, obtain the liquid that white is homogeneous；
(3) by liquid heating homogeneous for the white prepared, temperature is maintained at 70～80 DEG C, is existed by 85～98 parts of basalt fibres
The liquid that 70～80 DEG C of white is homogeneous is coated, is then driven by mechanical screws and is drawn tie rod, after coating
Basalt fibre is lowered the temperature, dries up, is sheared, and obtains basalt fibre asphalt mixed material modifier finished product；Screw speed is 5～20r/
min。
10. an application for the novel basalt fiber asphalt mixed material modifier as described in claim 1-8, is characterized in that:
To gather materials and breeze dries 4～6h by 180～190 DEG C, 70# matrix pitch dries 1～2h by 130～140 DEG C, is mixed by asphalt
Conjunction machine is preheated to more than mix temperature about 10 DEG C in advance, by 0.3% basalt fibre asphalt mixed material modifier with gather materials dry
Mix 90s, be subsequently poured into the 70# matrix pitch of 5.1%～5.3%, mix 90s, suspend stirring, add breeze and continue to puddle 90s,
Obtain modified asphalt mixture.
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| CN109867491A (en) * | 2019-03-22 | 2019-06-11 | 扬州大学 | A kind of asphalt mixing basalt fibre and composite modifier |
| CN110281608A (en) * | 2019-06-28 | 2019-09-27 | 上海建沪鸿达科技有限公司 | A kind of nano-fiber cloth with very high performance |
| CN113200732A (en) * | 2021-05-28 | 2021-08-03 | 上海宝新特种沥青混凝土有限公司 | Environment-friendly anti-rutting asphalt mixture and preparation method thereof |
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