CN104845392B - One kind foaming epoxy bitumen material - Google Patents
One kind foaming epoxy bitumen material Download PDFInfo
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- CN104845392B CN104845392B CN201510214661.9A CN201510214661A CN104845392B CN 104845392 B CN104845392 B CN 104845392B CN 201510214661 A CN201510214661 A CN 201510214661A CN 104845392 B CN104845392 B CN 104845392B
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Abstract
The invention discloses one kind foaming epoxy bitumen material, wherein including epoxy resin；The mass ratio of epoxy resin and remaining ingredient in the foaming epoxy bitumen material is 1：1.5~6.3.The epoxy resin is bisphenol A type epoxy resin, be comprising the trade mark E 54, E 52, E 51 or E 44 epoxy resin in any one or a few combination.The trade mark is that E 44 epoxy resin must be used in mixed way with other epoxy resin.And quality is less than or equal to the 10% of foaming epoxy bitumen material epoxy resin gross mass.Remaining ingredient includes in foaming epoxy bitumen material：The parts by weight of pitch 30~84, the parts by weight of maleic anhydride 4~17, the parts by weight of DAAM 20~42, the parts by weight of 2 methylimidazole 8~20, the parts by weight of tributyl phosphate 3~10.Foaming epoxy bitumen material provided by the invention, have the advantages that cohesive force is good, intensity is high, heat resistance is high, fatigue life is high.
Description
Technical field
The present invention relates to a kind of bituminous epoxy mixing material for carrying out foaming processing, in particular it relates to a kind of foaming ring
Oxygen asphalt material.
Background technology
Epoxy bitumen material originates from the U.S. of the sixties in last century, enters China after the beginning of this century, as Steel Bridge Deck
Pavement material successively raises the Yangtze Bridge, Nanjing No.3 Yangtze River Bridge, Hangzhou Gulf Great Bridge, Zhanjiang bay in the bridge of China's yangtze river in nanjing two, profit
It is applied in the Steel Bridge Pavements such as bridge, is a kind of very excellent ground surface material of performance, it has intensity high, firm
The advantages that degree is big, good toughness, anti-fatigue performance, water stabilizing, and resistance to chemical attack is excellent.
Curing system in the bituminous epoxy applied at present is mostly anhydrides, modified amine, is hot setting system,
And solidification temperature narrow scope, cause very strict, the existing epoxy asphalt concrete paving of the requirement of epoxy asphalt concrete paving temperature range
Operable time is too short, easily causes the waste of compound, and the stand-by period that paves is shorter, and causes many construction quality problems
The reason for highlighting.This is the focal issue of institute's joint research of numerous bituminous epoxy researchers.
Foamed asphalt be based on matrix pitch foam, have low emission, economy are excellent, early strength is high, it is low in the pollution of the environment,
The features such as storge quality is good, its key technology are added in pitch in by a small amount of water, or by foaming machine, or use hydrophilic material
Gathering materials for material (such as zeolite) or humidity, induces asphalt foaming, the pitch membrane structure formed realizes lower temperature by foaming
Under wrap and reduce asphalt operation temperature to what is gathered materials.But foamed asphalt can not use such as SBS modified mostly or
Rubber powder modified pitch is foamed, because this kind of modified pitch viscosity is often higher, foaming effect is little, and only uses base
Often intensity can not improve the foamed asphalt of matter pitch, therefore cause place with Foamed Asphalt to be used in basic unit or repairing mostly
In engineering, purposes and dosage are extremely limited.
The maximum construction drawback of common paving steel bridge deck bituminous epoxy is its compound from paving final pressure
During viscosity rise too fast, but the curing system in this kind of bituminous epoxy shows as hydrophobicity, will in work progress
The strict contact avoided with water, is directly foamed this kind of bituminous epoxy, and epoxy resin can be caused can not still to solidify after adding,
The problems such as waste material is serious.
The content of the invention
It is an object of the invention to provide a kind of for the Special Road such as plateau road surface, tunnel paving, winter construction paving
The epoxy bitumen material that can be foamed, there is the characteristics of high intensity, high-fire resistance, high fatigue life.
In order to achieve the above object, the invention provides one kind foaming epoxy bitumen material, wherein, the foaming bituminous epoxy
Epoxy resin is included in material；The mass ratio of described epoxy resin and remaining ingredient in the foaming epoxy bitumen material is 1：
1.5~6.3, preferably 1：2.5.
Above-mentioned foaming epoxy bitumen material, wherein, described epoxy resin is bisphenol A type epoxy resin.
Above-mentioned foaming epoxy bitumen material, wherein, described epoxy resin include the trade mark be E-54, E-52, E-51 or
Any one or a few combination in E-44 epoxy resin.The bisphenol A type epoxy resin of these four trades mark can wait quality
Substitute, the wherein more high then viscosity of the trade mark is lower.Epoxy resin E-51 is most preferably used, because this trade mark epoxy resin of China produces
Amount is big, and cost is relatively low, and is the liquid easily mixed and stirred under normal temperature.
Above-mentioned foaming epoxy bitumen material, wherein, the trade mark is that the E-44 epoxy resin must be with other asphalt mixtures modified by epoxy resin
Fat is used in mixed way.
Above-mentioned foaming epoxy bitumen material, wherein, the trade mark is that the quality of the E-44 epoxy resin is less than or equal to
The 10% of the epoxy bitumen material epoxy resin gross mass that foams, will not be too high with the viscosity ensured under epoxy resin normal temperature.Its
The ratio of his three kinds of epoxy resin is without particular/special requirement.
Above-mentioned foaming epoxy bitumen material, wherein, remaining ingredient includes in described foaming epoxy bitumen material：Pitch
30~84 parts by weight, the parts by weight of maleic anhydride 4~17, the parts by weight of DAAM 20~42,2-methylimidazole 8~
20 parts by weight, the parts by weight of tributyl phosphate 3~10.
Above-mentioned foaming epoxy bitumen material, wherein, remaining ingredient preferably compares in described foaming epoxy bitumen material
Example be：The parts by weight of pitch 62, the parts by weight of maleic anhydride 11, the parts by weight of DAAM 8, the weight of 2-methylimidazole 15
Part, the parts by weight of tributyl phosphate 4.
Above-mentioned foaming epoxy bitumen material, wherein, described foaming epoxy bitumen material, because various epoxy resin are mixed
Measure it is different can cause the ratio of epoxy resin and remaining ingredient change, according to the difference of its average epoxy value, its change can press
Column calculates：
If epoxy resin gross mass epoxy resin E-54, epoxy resin E-52, epoxy resin E-51, epoxy resin E-44
The gross mass ratio that accounts for be respectively a, b, c and d (wherein d≤0.1), then the ratio of epoxy resin and remaining ingredient is 1：3×
(1.058a+1.02b+c+0.863d)~5.8 × (1.058a+1.02b+c+0.863d), as a=1, b=0, c=0, d=0
It is 1 to take maximum magnitude：3.255~6.251, it is 1 that minimum zone is taken as a=0, b=0, c=1, d=0.1：1.469~
4.457.If above-mentioned remaining ingredient uses preferred value, the mass ratio of epoxy resin and remaining ingredient is 1：2.5×
(1.058a+1.02b+c+0.863d)。
Foaming epoxy bitumen material provided by the invention has advantages below：
The foaming epoxy bitumen material has the advantages that cohesive force is good, intensity is high, heat resistance is high, fatigue life is high；In addition,
When carrying out pavement construction using the foaming epoxy bitumen material of the present invention, due to using medium temperature mix, construction gas can be effectively reduced
Body discharges；Meanwhile carry out pavement construction using the foaming epoxy bitumen material of the present invention and can also solve general bituminous epoxy and can grasp
Make the time it is short the problem of.
Embodiment
The embodiment of the present invention is further described below.
Foaming epoxy bitumen material provided by the invention, wherein including epoxy resin；Epoxy resin drips with the foaming epoxy
The mass ratio of remaining ingredient is 1 in green material：1.5~6.3, preferably 1：2.5.
The epoxy resin is bisphenol A type epoxy resin.Its structural formula is as follows：
Wherein, n=0~1, n value are smaller, and the trade mark is higher, and viscosity is smaller；N values are bigger, and the trade mark is lower, and viscosity is bigger.
Epoxy resin includes any one or a few in the epoxy resin that the trade mark is E-54, E-52, E-51 or E-44
Combination.The bisphenol A type epoxy resin of these four trades mark can wait mass substitution, and the wherein more high then viscosity of the trade mark is lower, and source is equal
To be purchased in market.Epoxy resin E-51 is most preferably used, because this trade mark epoxy resin yield of China is big, cost is relatively low, and normal temperature
The lower liquid easily to mix and stir.E-51 structural formula is as follows：
The trade mark is that E-44 epoxy resin must be used in mixed way with other epoxy resin.And the trade mark is E-44 asphalt mixtures modified by epoxy resin
The quality of fat is less than or equal to the 10% of foaming epoxy bitumen material epoxy resin gross mass, to ensure under epoxy resin normal temperature
Viscosity will not be too high.The ratio of other three kinds of epoxy resin is without particular/special requirement.
Remaining ingredient includes in foaming epoxy bitumen material：The parts by weight of pitch 30~84, the weight of maleic anhydride 4~17
Part, the parts by weight of DAAM 20~42, the parts by weight of 2-methylimidazole 8~20, the parts by weight of tributyl phosphate 3~10.Its
Preferably ratio is：The parts by weight of pitch 62, the parts by weight of maleic anhydride 11, the parts by weight of DAAM 8,2- methyl miaows
The parts by weight of azoles 15, the parts by weight of tributyl phosphate 4.
The structural formula of wherein each component is as follows：
Maleic anhydride：
DAAM：
2-methylimidazole：
Tributyl phosphate：
Foaming epoxy bitumen material provided by the invention, due to various epoxy resin volume differences can cause epoxy resin and
The ratio change of remaining ingredient, according to the difference of its average epoxy value, it, which changes, to be calculated by following formula：
If epoxy resin gross mass epoxy resin E-54, epoxy resin E-52, epoxy resin E-51, epoxy resin E-44
The gross mass ratio that accounts for be respectively a, b, c and d (wherein d≤0.1), then the ratio of epoxy resin and remaining ingredient is 1：3×
(1.058a+1.02b+c+0.863d)~5.8 × (1.058a+1.02b+c+0.863d), as a=1, b=0, c=0, d=0
It is 1 to take maximum magnitude：3.255~6.251, it is 1 that minimum zone is taken as a=0, b=0, c=1, d=0.1：1.469~
4.457.If above-mentioned remaining ingredient uses preferred value, the mass ratio of epoxy resin and remaining ingredient is 1：2.5×
(1.058a+1.02b+c+0.863d)。
Foaming epoxy bitumen material provided by the invention, is prepared using following methods：
Epoxy resin in the epoxy bitumen material that foams is referred to as component A, remaining ingredient is referred to as B component, by the component of A, B two
It is mixed to prepare product.The independent sealed storage of the component of A, B two before mixing, when carrying out preparing asphalt.Construct mix it
Before, foaming processing is carried out to B component with foamed asphalt foaming machine.
Wherein, the preparation of B component comprises the following steps：
Step 1, the parts by weight of pitch 30~84, the parts by weight of maleic anhydride 4~17, DAAM are taken in proportion
20~42 parts by weight, the parts by weight of 2-methylimidazole 8~20, the parts by weight of tributyl phosphate 3~10.
Step 2, by maleic anhydride and asphalt mixing；Maleic anhydride is mixed with pitch under 140~158 DEG C of environment
Close 4~6 hours, the asphalitine in pitch can produce cis-butenedioic anhydrideization reaction.
Step 3, Following step 2, DAAM is added；DAAM is disposably added in mixture and mixed
Close, make the further acid anhydrides of the pitch after cis-butenedioic anhydride, asphalitine may proceed to acid anhydridesization reaction, still enter under 140~158 DEG C of environment
OK.
Step 4,2-methylimidazole is added in the mixture mixed after the completion of step 3 and continues to be stirred；2- first
The quality of base imidazoles addition per minute is the 2% of B component gross mass, and 2-methylimidazole is before mixture temperature drops to 100 DEG C
Addition finishes.
Step 5, tributyl phosphate is added while step 4 is carried out and is stirred mixing；The tributyl phosphate is disposable
Addition finishes.
Step 6, stood after each composition is well mixed and B component is made.
Then foaming processing is carried out to B component with foamed asphalt foaming machine, and mixed with component A, it is comprised the following steps：
Step a, foaming pump and heating systems are opened, are allowed to preheat.
Step b, the pitch storage tank that B component is poured into foaming machine, 130~150 DEG C are adjusted the temperature to, open cyclic system
System.
Step c, regulating pondage to 1%~4%, preferably 2%.
Step d, is foamed.Then pitch is injected directly into and mixes and stirs pot.
Step e, is mixed and stirred.Component A is taken in proportion, and is mixed and stirred pot with additions such as building stones, miberal powders on demand and mixed and stirred.
The present invention is further described below by embodiment.
Embodiment 1
Component A is that China trade mark bisphenol A type epoxy resin E-51 and E-54 press 1:The mixture of 1 ratio；B component is by 61
The pitch of parts by weight, the maleic anhydride of 10 parts by weight, the 2-methylimidazole of 10 parts by weight, the diacetone acrylamide of 11 parts by weight
Acid amides and the tributyl phosphate of 4 parts by weight composition；Before mixing and stirring, B component carries out 143 DEG C of foaming processing, and component A is in 80 DEG C of environment
Lower insulation 1h, building stones and miberal powder temperature are 140 DEG C during mix.
The mass ratio of component A and B component is 1：3.1.
Grading screening is carried out according to table 1.
Table 1AC-13 Mixture Ratios.
| Particle diameter | 16 | 13.2 | 9.5 | 4.75 | 2.36 | 1.18 | 0.6 | 0.3 | 0.15 | 0.075 |
| Percent of pass | 100 | 92 | 71 | 50 | 33 | 20 | 14 | 9 | 7 | 5 |
Foaming machine ties up special root WLB10 type foaming machines from use for laboratory, water 2%, measures the half of foaming bituminous epoxy
Phase of declining is 10s, and expansion rate is 11 times.
Embodiment 2
Foaming epoxy bitumen material prepared by the present invention is mixed and stirred by two kinds of components of A, B and formed, and component A is China's trade mark bis-phenol
A type epoxy resin E-51 (one-component, without other trades mark)；B component is by the pitch of 73 parts by weight, the maleic acid of 5 parts by weight
The 2-methylimidazole of acid anhydride, 10 parts by weight, the DAAM of 10 parts by weight, the tributyl phosphate composition of 2 parts by weight.Mix and stir
Before, B component carries out 143 DEG C of foaming processing, and component A is incubated 1h under 80 DEG C of environment, and building stones and miberal powder temperature are 140 during mix
℃。
The mass ratio of component A and B component is 1：2.8.
Embodiment 3
Common matrix pitch is foamed, mixed and stirred.No. 70 matrix pitches are produced from SK, pitch index is as shown in table 2.
The conventional index of the matrix pitch of table 2.
The objective air void of compound is identical in three kinds of embodiments, is 4%, chooses four kinds of asphalt contents：4.2%th,
4.7%th, 5.2% and 5.7%；Beat numbers respectively, voidage result of calculation such as table 3.
The determination of asphalt content in 3 three groups of embodiments of table.
| Asphalt content (%) | 4.2 | 4.7 | 5.2 | 5.7 |
| Embodiment 1, voidage (%) | 4.9 | 4.3 | 3.6 | 3.0 |
| Embodiment 2, voidage (%) | 4.8 | 4.3 | 3.5 | 3.0 |
| Embodiment 3, voidage (%) | 5.8 | 5.1 | 4.5 | 4.0 |
Foaming epoxy bitumen material provided by the invention, available for paving for the asphalt uplayer of highway or bridge, also may be used
With used in the laying of middle surface layer, cutting optimal or flexbile base.
Experiment is final to choose the 5.0% optimal oilstone as the epoxy bitumen material that foamed in embodiments of the invention 1 and 2
Than 5.7% is the optimum oil-stone ratio of common foamed asphalt compound in embodiment 3.In table 3 in " asphalt content " a line, for
The foaming epoxy bitumen material of the present invention refers to the dosage of A, B component altogether.
The grading and bitumen aggregate ratio determined according to existing Marshall Test design method, takes the test specimen of all completions
24h processing is stored at room temperature, is then distinguished using the Marshall Test in JTG E20-2011, wheel tracking test and indirect tensile test on frozen-thaw
Contrast the pavement performance of the compound in three embodiments.Result of the test is as shown in table 4.
The performance test of table 4 contrasts.
From result, foaming epoxy bitumen material provided by the invention, its pavement performance is satisfied by JTGF40-2004
Requirement, and only with matrix pitch foam asphalt high temperature rut performance and the freeze-thaw split value related to Moisture Damage
It is unable to reach requirement.
Foaming epoxy bitumen material provided by the invention, it is by during asphalt is prepared, adding epoxy
Curing reaction is carried out in pitch after resin to foaming, forms a kind of space net structure to increase the cohesive force of pitch.Wherein B
The curing system of component belongs to water-based or self-emulsifying type epoxy hardener, can persistently solidify in the environment of having water, by by ring
Oxygen pitch B component foams, and can effectively reduce construction temperature, after component A addition, rising that viscosity also will not be too fast；And with
The evaporation discharge of dampening, curing system are reacted with epoxy resin, and the intensity of compound rises, and reaches expected in 10-24h
Intensity；This method can effectively reduce the waste of material and the consumption of the energy, further expand the construction technology of epoxy asphalt mixture
And use range, in addition, can also reduce production cost, the risk of waste material reduces, and temperature declines then construction cost and also dropped therewith
It is low, reduce dust emission, reduce NOxDischarge, there is preferable social benefit.
Although present disclosure is discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read the above, for the present invention's
A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (5)
1. one kind foaming epoxy bitumen material, it is characterised in that epoxy resin is included in the foaming epoxy bitumen material；Described
The mass ratio of epoxy resin and remaining ingredient in the foaming epoxy bitumen material is 1：1.5~6.3；
Remaining ingredient includes in described foaming epoxy bitumen material：
The parts by weight of pitch 30~84,
The parts by weight of maleic anhydride 4~17,
The parts by weight of DAAM 20~42,
The parts by weight of 2-methylimidazole 8~20,
The parts by weight of tributyl phosphate 3~10.
2. foaming epoxy bitumen material as claimed in claim 1, it is characterised in that described epoxy resin is bisphenol-A type ring
Oxygen tree fat.
3. foaming epoxy bitumen material as claimed in claim 1, it is characterised in that described epoxy resin is E- comprising the trade mark
54th, any one or a few the combination in E-52, E-51 or E-44 epoxy resin.
4. foaming epoxy bitumen material as claimed in claim 3, it is characterised in that the trade mark is that the E-44 epoxy resin must
It must be used in mixed way with other epoxy resin.
5. foaming epoxy bitumen material as claimed in claim 4, it is characterised in that the trade mark is the E-44 epoxy resin
Quality is less than or equal to the 10% of foaming epoxy bitumen material epoxy resin gross mass.
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| CN105670317A (en) * | 2015-11-15 | 2016-06-15 | 上海市政工程设计研究总院（集团）有限公司 | Emulsible epoxy bitumen material and preparation method thereof |
| CN109423056A (en) * | 2017-08-29 | 2019-03-05 | 钱诗旋 | A kind of foaming epoxy bitumen material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4162998A (en) * | 1977-04-22 | 1979-07-31 | Kao Soap Co., Ltd. | Process for preparation of asphalt-epoxy resin composition |
| CN1837290A (en) * | 2006-04-28 | 2006-09-27 | 黄卫 | Thermosetting epoxy asphalt materials for pavement and bridge and process for preparing same |
| CN101634130A (en) * | 2009-09-01 | 2010-01-27 | 江苏文昌新材料科技有限公司 | Preparation method of epoxy asphalt road surface materials |
| CN101735623A (en) * | 2009-12-30 | 2010-06-16 | 同济大学 | Warm mixed epoxy bitumen material and preparation method thereof |
| CN101974231A (en) * | 2010-10-21 | 2011-02-16 | 湖北大学 | High-performance epoxy bitumen material for roads and bridges and preparation method thereof |
-
2015
- 2015-04-29 CN CN201510214661.9A patent/CN104845392B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4162998A (en) * | 1977-04-22 | 1979-07-31 | Kao Soap Co., Ltd. | Process for preparation of asphalt-epoxy resin composition |
| CN1837290A (en) * | 2006-04-28 | 2006-09-27 | 黄卫 | Thermosetting epoxy asphalt materials for pavement and bridge and process for preparing same |
| CN101634130A (en) * | 2009-09-01 | 2010-01-27 | 江苏文昌新材料科技有限公司 | Preparation method of epoxy asphalt road surface materials |
| CN101735623A (en) * | 2009-12-30 | 2010-06-16 | 同济大学 | Warm mixed epoxy bitumen material and preparation method thereof |
| CN101974231A (en) * | 2010-10-21 | 2011-02-16 | 湖北大学 | High-performance epoxy bitumen material for roads and bridges and preparation method thereof |
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