CN104556781B - A kind of non-ionic asphalt warm-mix agent and preparation method thereof - Google Patents
A kind of non-ionic asphalt warm-mix agent and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a kind of non-ionic asphalt warm-mix agent and preparation method thereof, which includes by weight percentage：High molecular component 0.1wt%~10wt%, low-molecular-weight component 0.1wt%~20wt%, inorganic micro powder 1wt%~15wt%, water 55wt%~98.8wt%.Preparation method is as follows：It is first added water in container by proportioning, adds in high molecular component, constant temperature stirs 0.5~2 hour, controlled at 40~60 DEG C, low-molecular-weight component and inorganic micro powder then are added in by proportioning, is warming up to 60~80 DEG C, continue stirring 0.5~1 hour, obtain non-ionic asphalt warm-mix agent.The advantages that non-ionic asphalt warm-mix agent of the present invention can effectively reduce the high temperature viscosity of pitch, and have good dispersion, and performance is stablized, and raw material easily acquires, and production cost is low, and preparation method is easy and has wide range of applications.
Description
Technical field
The present invention relates to a kind of asphalt warm-mix agent and preparation method thereof more particularly to a kind of non-ionic asphalt warm-mix agent and
Preparation method.
Background technology
The asphalt used in road engineering at present is generally divided into two types according to construction temperature is mixed and stirred：Cold mixing drips
Green mixture CMA (Cold Mix Asphalt) and hot-mix asphalt mixture HMA (Hot Mix Asphalt).Cold-mix asphalt mixes
Close material generally mixed and stirred under normal temperature state using emulsified asphalt or liquid asphalt and gathering materials, making, without to gathering materials and combining
Material is heated, and can save mass energy in this way.But cold-mix asphalt mixture initial stage pavement performance is poor, it is difficult to meet public at a high speed
The requirement of the important engineerings such as road, Heavy Traffic road.Hot-mix asphalt mixture be most widely used, pavement performance it is the best
A kind of mixture.But in hot-mix asphalt mixture production process, pitch is needed with building stones in 150~180 DEG C of high temperature items
It is mixed and stirred under part.Building stones, pitch are heated to so high temperature, consume mass energy.In addition it is given birth in hot-mix asphalt mixture
A large amount of CO is produced during production2, flue dust and pernicious gas (CO, SO2、NOxDeng), environment is not only polluted, but also influence
The health of staff.Meanwhile mixing and stirring under hot conditions also results in the aging of pitch, reduces asphalt
Pavement performance.
For environmental protection, energy saving, the middle and later periods the 1990s Europe and the countries such as U.S. carried out warm mix drip
The research of green mixture WMA (Warm Mix Asphalt), the purpose is to the temperature of mixing and stirring and pave by reducing asphalt
Degree reaches the energy consumption reduced in Process of Pitch Mixture Production, reduces CO2Gases and dust discharge amount are waited, while ensures warm mix
Asphalt has the pavement performance and construction workability essentially identical with hot-mix asphalt mixture.
At present, there are mainly three types of modes for warm mix asphalt technologies：First, one kind is added in pitch in advance to drop
The additive of low 135 DEG C of viscosity of pitch, chemically angle change the viscosity-temperature curve of pitch, so as to reduce mixing for pitch and building stones
And temperature, but the method can generally also reduce by 60 DEG C of viscosity of pitch reduces the high-temperature stability of mixture；Second is that using
The higher emulsified asphalt of solid content, is mixed and stirred at a temperature of 80~120 DEG C with building stones, which low compared with the temperature of hot asphalt about 30
~50 DEG C；Third, in water and pitch added in simultaneously in mixing mixture mixing and stirring tank, since the presence of water makes asphalt foaming, reach
To viscosity reducing effect.But if this method amount of water is excessive, can generate a large amount of vapor or cause bumping, if water is very few,
Foaming effect is bad.
CN101602862A discloses a kind of warm-mixed asphalt additive and preparation method thereof, the additive be by will go from
Sub- water is added in the polyvinyl alcohol water solution being made into advance, then sequentially adds rosin quaternary ammonium salt, aromatic hydrocarbon quaternary ammonium emulsifying salt
Agent, aliphatic hydrocarbon quaternary ammonium salt emulsifier, nonionic surface active agent, stirring and dissolving, then the polyacrylamide aqueous amine that will be made into advance
Solution and triethanolamine add in, and it is finished product to mix to after being uniformly dissolved.The additive can be substantially reduced pitch and mix and stir
Temperature, asphalt items pavement performance index also complies with requirement, but the additive component is complicated, increases the difficulty of preparation
Degree and cost, are unfavorable for practical application.CN102268189A discloses a kind of warm-mixed asphalt additive and preparation method thereof, it is
Using a kind of additive of organic silicon modified by polyether polymer composition in dicyandiamide solution.It can effectively reduce and mix and stir 40 DEG C of temperature
Left and right, and warm-mixed asphalt property indices are not less than hot asphalt, but lack relevant test method and instance data support.
The irritations such as the acid base catalysator that the additive uses in addition and toxicity are larger, easily cause human body harm and environmental pollution.
Invention content
The present invention provides a kind of non-ionic asphalt warm-mix agents and preparation method thereof.The asphalt warm-mix agent of the present invention can
The high temperature viscosity of pitch is effectively reduced, and is stablized with performance, raw material easily acquires, and production cost is low, and preparation method is easy, green
The advantages that colour circle is protected and is had wide range of applications.
The non-ionic asphalt warm-mix agent of the present invention, includes by weight percentage：
（1）High molecular component：0.1wt%~10wt%
（2）Low-molecular-weight component：0.1wt%~20wt%
（3）Inorganic micro powder：1wt%~15wt%
（4）Water：55wt %~98.8wt%.
The non-ionic asphalt warm-mix agent of the present invention, preferably constitute by weight percentage including：
（1）High molecular component：2wt%~5wt%
（2）Low-molecular-weight component：2wt%~10wt%
（3）Inorganic micro powder：2wt%~10wt%
（4）Water：75wt%~94wt%.
The high molecular component includes：Polyethylene oxide-propylene oxide, water soluble phenol resin, polyacrylate, ammonia
It is one or more in base resin, polyethers, polyvinyl alcohol and its partial esterification or acetalation product, preferred polyacrylate, poly-
Ether and polyvinyl alcohol, molecular weight is in 2000~30000, preferably 5000 ~ 20000.
The low-molecular-weight component includes：Fatty acid distribution of coconut oil diglycollic amide, fatty alcohol polyoxyethylene ether, alkyl phenol polyoxy
Vinethene, polyoxyethylene carboxylate, alkylolamides polyoxyethylene ether, Block polyoxyethylene-polyethenoxy ether, alkyl are more
Glycosides, polyalcohol stearate, Span, fatty acid ethylene oxide condensate, castor oil polyoxyethylene ether, poly- second two
It is one or more in the esterification and etherification product of alcohol dioleic acid ester and Spans series and Tweens series, preferred fat alcohol
Polyoxyethylene ether, alkylolamides polyoxyethylene ether and fatty acid distribution of coconut oil diglycollic amide, molecular weight is below 2000.
In the non-ionic asphalt warm-mix agent of the present invention, the inorganic micro powder is zeolite powder, sodium silicoaluminate, active oxidation
Aluminium, vermiculite, calcium hydroxide, bentonite and activated carbon etc. have one in the inorganic material of stronger adsorption capacity and ion-exchange capacity
Kind or several, preferred zeolite powder, the granularity of inorganic micro powder is 20~200 mesh.
It in the non-ionic asphalt warm-mix agent of the present invention, can also be needed to add in other additives according to practical application, such as divided
The oxidations such as powder, antistripping agent, foaming agent, age resister, polymer modifiers and magnesia, calcium oxide and phosphorus pentoxide
Object, the addition of additive account for 0.1wt%~9.9wt%'s of warm-mixing agent total weight.
The preparation method of the non-ionic asphalt warm-mix agent of the present invention, including following content：Container is first added water to by proportioning
In, high molecular component is added in, constant temperature stirs 0.5~2 hour, controlled at 40~60 DEG C, then presses proportioning by low molecule group
Divide and inorganic micro powder adds in, be warming up to 60~80 DEG C, continue stirring 0.5~1 hour, obtain non-ionic asphalt warm-mix agent.
Application of the non-ionic asphalt warm-mix agent of the present invention in asphalt mixes and stirs, includes the following steps：Work as building stones
Reach set temperature, uniform mix 1~5 minute adds in pitch, and non-ionic asphalt warm-mix agent is added to asphalt
In mix and stir 1~5 minute, add in miberal powder or Machine-made Sand, uniformly mix and stir 1~5 minute.Wherein non-ionic asphalt warm-mix agent is according to drip
2wt%~10wt% of green dosage is added in.
The non-ionic asphalt warm-mix agent of the present invention has the following advantages compared with traditional asphalt warm-mixing agent：
（1）In the non-ionic asphalt warm-mix agent of the present invention, high molecular component and low-molecular-weight component be it is mild it is non-from
Subtype surfactant, it is small to the irritation of human body, it is environmental-friendly, it is environmentally protective.
（2）In the non-ionic asphalt warm-mix agent of the present invention, dispersion effect is good between high low-molecular-weight component, and stability is good,
Stable non-ionic asphalt warm-mix agent is formed, and high low-molecular-weight component has complementary advantages, and can play " lubrication " effect, make pitch
It is more prone to when mixing and stirring.
（3）The non-ionic asphalt warm-mix agent of the present invention can form micro-emulsion type lotion with pitch, greatly reduce the height of pitch
Warm viscosity, therefore the mixing and stirring of asphalt can be reduced, paved and compacting temperature, mixing and stirring temperature can drop than hot asphalt
Low 15~30 DEG C, energy consumption about 30% is reduced, largely reduces the discharge of smog and harmful substance, reduces harm to the human body and environment is dirty
Dye.
（4）The non-ionic asphalt warm-mix agent of the present invention, can enhance the cohesive force of building stones, mountain flour and pitch, carry well
The resistance to flaking of high mixture can effectively prevent the Rutting damage of bituminous paving under the conditions of heavy traffic and Heavy Traffic.
Reduce the ageing of asphalt during mixing and stirring, prolonging service life of pavement simultaneously.
（5）The non-ionic asphalt warm-mix agent raw material of the present invention is simple, and production cost is low, and preparation method is easy, only needs letter
Single mechanical agitation can uniformly disperse, and stability is good, applied widely, is easy to commercial Application.
Specific embodiment
With reference to embodiment, the present invention is further illustrated, but is not so limited the present invention.
Embodiment 1
Non-ionic asphalt warm-mix agent material quality percentage is：
Polyethylene oxide-propylene oxide：0.6%；
Water soluble phenol resin：0.5%
Fatty acid distribution of coconut oil diglycollic amide：17.5%；
Zeolite powder（25 mesh）：14.5%；
Water：66.9%.
It is first added water in container by proportioning, controlled at 42 DEG C, adds in polyethylene oxide-propylene oxide, constant temperature stirs
Mix 30 minutes, add in water soluble phenol resin, constant temperature stirs 55 minutes, then by proportioning by fatty acid distribution of coconut oil diglycollic amide and
Zeolite powder adds in, and is warming up to 68 DEG C, continues stirring 55 minutes, obtains non-ionic asphalt warm-mix agent.
Embodiment 2
Non-ionic asphalt warm-mix agent material quality percentage is：
Polyethylene oxide-propylene oxide：8.5%；
Alkylolamides polyoxyethylene ether：5%；
Zeolite powder（80 mesh）：7.5%；
Water：79.0%.
It is first added water in container by proportioning, controlled at 50 DEG C, adds in polyethylene oxide-propylene oxide, constant temperature stirs
It mixes 40 minutes, then alkylolamides polyoxyethylene ether and zeolite powder is added in by proportioning, are warming up to 78 DEG C, continues 30 points of stirring
Clock obtains non-ionic asphalt warm-mix agent.
Embodiment 3
Non-ionic asphalt warm-mix agent material quality percentage is：
Pioloform, polyvinyl acetal：4.5%；
Polyethylene oxide-propylene oxide：0.3%
Alkyl phenol polyoxyethylene ether：0.5%
Polyoxyethylene carboxylate：1.5%；
Zeolite powder（180 mesh）：2.5%；
Water：90.7%.
It is first added water in container by proportioning, controlled at 58 DEG C, adds in Pioloform, polyvinyl acetal, constant temperature stirs 55 points
Clock adds in polyethylene oxide-propylene oxide, and constant temperature stirs 45 minutes, then presses proportioning by alkyl phenol polyoxyethylene ether, aliphatic acid
Polyoxyethylene ester and zeolite powder add in, and are warming up to 63 DEG C, continue stirring 45 minutes, obtain non-ionic asphalt warm-mix agent.
Comparative example 1
Non-ionic asphalt warm-mix agent material quality percentage is：
Polyacrylate：4.5%；
Polyethylene oxide-propylene oxide：1.2%；
Zeolite powder（25 mesh）：5.0%；
Water：89.3%.
It first being added water in container by proportioning, controlled at 50 DEG C, adds in polyacrylate, constant temperature stirs 30 minutes,
Polyethylene oxide-propylene oxide is added in, constant temperature stirs 50 minutes, adds in zeolite powder, is warming up to 68 DEG C, continues stirring 55 minutes,
Obtain non-ionic asphalt warm-mix agent.
Comparative example 2
Non-ionic asphalt warm-mix agent material quality percentage is：
Alkylolamides polyoxyethylene ether：5.5%
Fatty acid distribution of coconut oil diglycollic amide：3.0%
Polyoxyethylene carboxylate：2.0%；
Zeolite powder（80 mesh）：2.5%；
Water：87.0%.
It is first added water in container by proportioning, controlled at 55 DEG C, by proportioning respectively by alkylolamides polyoxyethylene
Ether, fatty acid distribution of coconut oil diglycollic amide, polyoxyethylene carboxylate successively add in, and stir 30 minutes respectively, add in zeolite powder, rise
Temperature continues stirring 30 minutes, obtains non-ionic asphalt warm-mix agent to 70 DEG C.
Embodiment 4
According to《Standard specification for construction and acceptance of highway asphalt pavement》（JTG F40-2004）Defined method is respectively using the present invention
The warm mix mode of non-ionic warm-mixing agent and traditional heat mode of mixing carry out mixing and stirring for mixture, and carry out performance of asphalt mixture
Evaluation.Wherein, by the non-ionic warm-mixing agent prepared in embodiment 1,2,3 and comparative example 1,2 according to the 5wt% of asphalt content,
It is added in asphalt in a manner of sprinkling, is prepared into compound test specimen A, B, C, D, E.This experiment uses 90#A grades of pitches,
Bitumen aggregate ratio（The percentage of pitch and mineral aggregate mass ratio in bituminous concrete）It is 6.0%, the grading of building stones is shown in Table 1, performance evaluation knot
Fruit is shown in Table 2.It is as follows specifically to mix and stir process：
Warm mix：
1st, it weighs building stones in 120 DEG C of baking oven by set amount to heat 4 hours, it is small that pitch heats 2 in 120 DEG C of baking ovens
When, mixing machine temperature is set as 120 DEG C.
2nd, rubble material is first added in into mixing machine, uniform stirring 3 minutes at a set temperature.
3rd, pitch is added in into mixing machine, and is at once sprayed to warm-mixing agent in pitch by set amount, mixed and stirred 1.5 minutes, then
Miberal powder is added in, continues to mix and stir 3.5 minutes under set temperature.
Heat is mixed：
1st, it weighs building stones in 150 DEG C of baking oven by set amount to heat 4 hours, it is small that pitch heats 2 in 150 DEG C of baking ovens
When, mixing machine temperature is set as 150 DEG C.
2nd, rubble material is first added in into mixing machine, uniform stirring 3 minutes at a set temperature.
3rd, pitch is added in into mixing machine, mixes and stirs 1.5 minutes, add miberal powder, continue to mix and stir 3.5 points under set temperature
Clock.
1 building stones grading of table.
| Grain size/mm | 16~13.2 | 13.2~9.5 | 9.5~4.75 | 4.75~2.36 | 2.36~1.18 | 1.18~0.6 | 0.6~0.3 | 0.3~0.15 | 0.15~0.075 | Less than 0.075 |
| Ratio/wt% | 4.5 | 22 | 24 | 14.2 | 14.5 | 6.2 | 4.2 | 4.2 | 5.8 | 0.4 |
2 Warm-Mix Bitumen Mixture the performance test results of table.
Test data shows the warm mix prepared using the non-ionic warm-mixing agent containing two kinds of components of macromolecule and low molecule
Asphalt is in the case where mixing and stirring and being substantially reduced 15~30 DEG C relative to hot-mix asphalt mixture with forming temperature, Ge Xiangxing
Energy index is satisfied by《Standard specification for construction and acceptance of highway asphalt pavement》（JTG F40-2004）Requirement.
Claims (9)
1. a kind of non-ionic asphalt warm-mix agent, it is characterised in that：Include following components by weight percentage：
High molecular component：0.1wt%~10wt%
Low-molecular-weight component：0.1wt%~20wt%
Inorganic micro powder：1wt%~15wt%
Water：55wt %~98.8wt%；
The wherein described high molecular component includes：Water soluble phenol resin, polyacrylate, amino resins, polyethers and its part
One or more in esterification or acetalation product, the molecular weight of high molecular component is 2000 ~ 30000；
The low-molecular-weight component includes：Fatty acid distribution of coconut oil diglycollic amide, fatty alcohol polyoxyethylene ether, alkylphenol-polyethenoxy
Ether, polyoxyethylene carboxylate, alkylolamides polyoxyethylene ether, Block polyoxyethylene-polyethenoxy ether, alkyl polyglycoside, fat
Fat acid ethylene oxide condensate, castor oil polyoxyethylene ether, polyethylene glycol dioleic acid ester and Spans series and Tweens series
In it is one or more, the molecular weight of low-molecular-weight component is less than 2000；
The inorganic micro powder is in zeolite powder, sodium silicoaluminate, activated alumina, vermiculite, calcium hydroxide, bentonite or activated carbon
It is one or more of.
2. non-ionic asphalt warm-mix agent described in accordance with the claim 1, it is characterised in that：Include by weight percentage following
Component：
High molecular component：2wt%~5wt%
Low-molecular-weight component：2wt%~10wt%
Inorganic micro powder：2wt%~10wt%
Water：75wt%~94wt%.
3. according to the non-ionic asphalt warm-mix agent described in claims 1 or 2, it is characterised in that：The grain of the inorganic micro powder
It spends for 20~200 mesh.
4. according to the non-ionic asphalt warm-mix agent described in claims 1 or 2, it is characterised in that：In warm-mixing agent add in dispersant,
It is a kind of or several in antistripping agent, foaming agent, age resister, polymer modifiers and magnesia, calcium oxide and phosphorus pentoxide
Kind, the addition of additive accounts for 0.1wt%~9.9wt% of warm-mixing agent total weight.
5. the preparation method of the non-ionic asphalt warm-mix agent described in a kind of claims 1 or 2, it is characterised in that in following
Hold：By proportioning first add water in container, add in high molecular component, constant temperature stirring, heating, by proportioning add in low-molecular-weight component and
Inorganic micro powder continues to stir, and obtains non-ionic asphalt warm-mix agent.
6. according to the method for claim 5, it is characterised in that：Constant temperature whipping temp is 40~60 DEG C, mixing time 0.5
~ 2 hours；60~80 DEG C are warming up to, continues stirring 0.5 ~ 1 hour.
7. application of the non-ionic asphalt warm-mix agent in asphalt mixes and stirs described in a kind of claims 1 or 2, feature
It is to include the following steps：When building stones reach set temperature, addition pitch is uniformly mixed and stirred, and non-ionic asphalt warm-mix agent is added
Enter into asphalt, uniformly mix and stir, add miberal powder, uniformly mix and stir.
8. according to the application described in claim 7, it is characterised in that：Uniformly the mixing time is 1~5 minute every time.
9. according to the application described in claim 7, it is characterised in that：Non-ionic asphalt warm-mix agent according to asphalt content 2wt%
~10wt% is added in.
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| CN107828181A (en) * | 2017-11-15 | 2018-03-23 | 上海浦东路桥建设股份有限公司 | For reducing the additive and preparation method of non-bituminous class cementitious matter temperature sensitivity |
| CN109574550B (en) * | 2018-12-29 | 2021-08-24 | 苏州科技大学 | Asphalt concrete pavement pit repairing material and preparation method thereof |
| CN114573973A (en) * | 2022-03-15 | 2022-06-03 | 广东省交通规划设计研究院集团股份有限公司 | Asphalt warm-mixing agent, warm-mixed asphalt mixture, and preparation method and application thereof |
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| CN101643584B (en) * | 2009-09-04 | 2012-03-07 | 武汉理工大学 | Modified emulsified asphalt with excellent temperature adaptability and preparation method thereof |
| CN102093731B (en) * | 2011-03-31 | 2012-09-26 | 许昌金欧特沥青股份有限公司 | Color asphalt warm-mixing agent and preparation process thereof |
| CN102286205B (en) * | 2011-06-28 | 2013-08-14 | 中国海洋石油总公司 | Anionic emulsified asphalt and preparation method thereof |
| CN102408602B (en) * | 2011-07-27 | 2013-06-05 | 上海浦东路桥建设股份有限公司 | Direct-feeding type asphalt warm-mix modifier as well as preparation method and application thereof |
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