CN101735623B - Warm mixed epoxy bitumen material and preparation method thereof - Google Patents
Warm mixed epoxy bitumen material and preparation method thereof Download PDFInfo
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- CN101735623B CN101735623B CN200910247718XA CN200910247718A CN101735623B CN 101735623 B CN101735623 B CN 101735623B CN 200910247718X A CN200910247718X A CN 200910247718XA CN 200910247718 A CN200910247718 A CN 200910247718A CN 101735623 B CN101735623 B CN 101735623B
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Abstract
The invention relates to a warm mixed epoxy bitumen material which comprises A and B components. A component is epoxy. B component comprises 40 to 83 weight parts of bitumen, 5 to 20 weight parts of maleic anhydride, 10 to 30 weight parts of 9-amino-octadecene, and 2 to 10 weight parts of polysebacic polyanhydride or PAPA. The mass ratio of components A and B is 1:3 to 5.8. The warm mixed epoxy bitumen material prepared by the invention has the advantages of strong binding power, high intensity, high heat resistance, long fatigue life, and the like. Besides, when the warm mixed epoxy bitumen material of the invention is applied to paving, the construction gas is efficiently discharged due to mixing at intermediate temperature and the problem that common epoxy bitumen material has short operation time is solved.
Description
Technical field
The present invention relates to a kind of Warm-Mix Bitumen Mixture, be specifically related to a kind of warm mixed epoxy bitumen material and preparation method thereof.
Background technology
Traditional hot-mix asphalt mixture (HMA) is that a kind of heat is mixed thermopave, when mixing and stirring, paving and rolling, needs higher temperature, the process of producing and constructing; Consume mass energy; The pitch thermal ageing gives off a large amount of waste gas and dust, influences the healthy of environment and workmen.For overcoming the shortcoming of hot-mix asphalt mixture; Numerous warm-mixed asphalts arise at the historic moment; Common warm-mixed asphalt has following characteristics: about 30 ℃～50 ℃ of (1) low asphalt production and construction temperature; Can energy efficient more than 20%, when reducing vibroll and using to the influence of bridge with building structure along the line; (2) few quantity discharged.Warm-Mix Bitumen Mixture can reduce asphalt significantly and mix and stir gaseous emission species and quantity discharged in the process, generally mixes and stirs 10 ℃ of the every reductions of temperature, pitch smog and CO
2Quantity discharged can reduce by half thereupon, reduced gaseous emission, generally can save the indirectly attributable expense of pitch mixing building 30%～50%, reduce the injury of obnoxious flavour to the workmen; (3) prolongation asphalt pavement construction phase, broadened application scope.Because it is low that Warm-Mix Bitumen Mixture construction temperature specific heat is mixed asphalt; Therefore low with temperature loss when very fast in envrionment temperature; Warm-Mix Bitumen Mixture has very big application advantage, thereby prolongs the construction time of bituminous pavement greatly, even can carry out winter construction; Warm-Mix Bitumen Mixture is lower mix and stir, pave and roll temperature is particularly suitable for the application of bituminous concrete in tunnel road surface.
The common temperature technology of mixing has at present:
(1) the foam asphalt temperature is mixed technology (WMA-Foam).This technology is to be developed jointly and had the technology of a kind of two-phase method production Warm-Mix Bitumen Mixture of patent by Britain Shell (shell) company and Norway Kolo-Veidekke; This technology at first adopts fluxed bitumen and building stones to mix and stir, and mixes and stirs temperature and is controlled at about 110 ℃.
(2) zeolite (Aspha-Min) viscosity reduction technology.The construction temperature of this technology can reduce about 30 ℃, and 12 ℃ of every reductions of production temperature, and power consumption will reduce about 30%.All binders are regardless of being pitch or polymer modification binder and reclaiming pitch and can both use Aspha-Min.
(3) use mobile properties-correcting agent (like the Sasobit-Fischer-Tropsch paraffin) technology of pitch.Sasobit is the product of South Africa Sasol Wax, and Sasobit can reduce the viscosity of asphalt through chemical reaction, reduces by 18～54 ℃ of production temperature.
(4) the emulsified bitumen temperature is mixed technology (Evotherm).This technology is the Evotherm Warm-Mix Bitumen Mixture based on the emulsified bitumen dispersion technology that U.S. Meadwestvaco company is being studied.This technology adopts a kind of special emulsified bitumen to substitute heated bitumen realization temperature and mixes, and its production technique and hot-mix asphalt mixture are basic identical.Moisture in the process of mixing and stirring in the emulsified bitumen discharges with the form of water vapor, and the Warm-Mix Bitumen Mixture after mixing and stirring is echoed color and hot-mix asphalt mixture is similar from seeing that in appearance it is wrapped up in.
But shortcomings such as the Warm-Mix Bitumen Mixture of above-mentioned technology preparation usually exists, and cohesive force is not enough, the damage by water evil is serious, resistance to elevated temperatures difference.
China starts late about the research of warm-mixed asphalt, and in recent years, domestic patent about solution warm-mixed asphalt problems increases gradually, but the method for still not mentioned employing epoxy resin modification.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, a kind of warm mixed epoxy bitumen material and preparation method thereof is provided.The present invention adopts epoxy resin and curing agent modified method to prepare the warm mixed epoxy bitumen material of HS, high heat resistance, high fatigue life, and this material is applicable to special road surfaces such as paving, tunnel, winter construction paving.
Main points of the present invention are to add epoxy resin and in pitch, are cured reaction, form a kind of space reticulated structure to strengthen the bituminous cohesive force.
Warm mixed epoxy bitumen material of the present invention comprises A, two kinds of components of B, and the A component is an epoxy resin, and the B component comprises following composition:
Pitch 40～83 weight parts are preferably 60 weight parts;
MALEIC ANHYDRIDE 5～20 weight parts are preferably 15 weight parts;
9-octadecenyl amine 10～30 weight parts are preferably 20 weight parts;
Poly sebacic polyanhydride or gather nonane diacid acid anhydride 2～10 weight parts is preferably 5 weight parts;
The mass ratio of A component and B component is 1: 3～5.8.If above-mentioned four kinds of compositions all adopt preferred value, then the mass ratio of A component and B component is 1: 4.3.
Said A component is selected from bisphenol A type epoxy resin, and the trade mark is E-51.
Said A component also can be in bisphenol A type epoxy resin E-54, epoxy resin E-52, epoxy resin E-51, the epoxy resin E-44 two or more mixture arbitrarily; The bisphenol A type epoxy resin of these four kinds of trades mark can wait quality to substitute; But the quality of epoxy resin E-44 is no more than 10% of A component total mass, and the ratio that other three kinds of epoxy resin account for the A component does not have particular requirement.
The preparation method of warm mixed epoxy bitumen material of the present invention is for pressing ordinary method with A, the mixed product that gets of B two components, A, the independent sealed storage of B two components before mixing; Wherein, the preparation of B component comprises the steps:
(1) with MALEIC ANHYDRIDE and pitch mix;
(2) the 9-octadecenyl amine is joined in the MALEIC ANHYDRIDE that mixes and the bituminous mixture continue to mix;
(3), step (2) adds poly sebacic polyanhydride or gather nonane diacid when carrying out;
(4) promptly make the B component after each composition mixes.
In the step (1), MALEIC ANHYDRIDE and pitch mix 4～6 hours under 150 ℃ of environment.
In the step (2), the quality that 9-octadecenyl amine PM adds is 2% of a B component total mass, and the 9-octadecenyl amine adds before mixture temperature drops to 90 ℃ and finishes.
In the step (3), poly sebacic polyanhydride or gather in the disposable adding mixture of nonane diacid acid anhydride.
Epoxy resin is China trade mark bisphenol A type epoxy resin E-54, epoxy resin E-52, epoxy resin E-51, epoxy resin E-44 in the said A component, and trade mark HV more is low more, and this type of bisphenol A type epoxy resin structured formula is following:
N=0～1 wherein, the n value is more little, and the trade mark is high more, and viscosity is more little; The n value is big more, and the trade mark is low more, and viscosity is big more.
The present invention recommends to use epoxy resin E-51, because this trade mark epoxy resin output of China is big, cost is lower, and is fine liquid state of mixing and stirring under the normal temperature, and epoxy resin E-51 structural formula is shown in the following figure:
Used MALEIC ANHYDRIDE, 9-octadecenyl amine, poly sebacic polyanhydride and to gather the structural formula of nonane diacid acid anhydride following in the said B component:
MALEIC ANHYDRIDE:
The 9-octadecenyl amine:
Poly sebacic polyanhydride:
X is the real number greater than 0.
Gather the nonane diacid acid anhydride:
X is the real number greater than 0.
Beneficial effect of the present invention is: the warm mixed epoxy bitumen material for preparing of the present invention has that cohesive force is good, intensity is high, thermotolerance is high, fatigue lifetime advantages of higher; In addition, when using warm mixed epoxy bitumen material of the present invention and carrying out pavement construction, because warm mix in adopting can effectively reduce the construction gaseous emission; Simultaneously, use warm mixed epoxy bitumen material of the present invention and carry out the problem that pavement construction also can solve general bituminous epoxy operable time weak point.
Embodiment
Further explain the present invention below in conjunction with specific embodiment.The purpose of enumerating embodiment only is more specifically to explain the present invention, and protection scope of the present invention is not limited to the described content of embodiment.
Embodiment 1
The warm mixed epoxy bitumen material of the present invention's preparation is mixed and stirred and is formed by A, two kinds of components of B, and the A component is China trade mark bisphenol A type epoxy resin E-51; The B component is by the pitch of 60 weight parts, the MALEIC ANHYDRIDE of 15 weight parts, the 9-octadecenyl amine (claiming oleyl amine again) of 20 weight parts, and the poly sebacic polyanhydride of 5 weight parts is formed; Before mixing and stirring, A, the independent sealed storage of B two components.
The mass ratio of A component and B component is 1: 4.3.
The salient features of epoxy resin E-51 is as shown in table 1 in the A component:
The salient features of table 1 E-51 type epoxy resin
| Chemical composition | Viscosity (23 ℃)/(Pas) | Epoxy equivalent (weight)/(g/eq) | Organic modifiers or solvent |
| Cyclenes hydro carbons epoxy | Liquid semi-solid | 211～290 | Contain promoting agent and organic solvent |
The supplementary properties of epoxy resin E-51 is as shown in table 2 in the A component:
The supplementary properties of table 2 E-51 type epoxy resin
| Density (23 ℃)/(g/cm 3) | Additive | Characteristic |
| ≤1.10 | Do not have | Has the combustible material of regulation |
Enterprise's general-quality criteria of China E-51 type epoxy resin is as shown in table 3:
Enterprise's general-quality criteria of table 3 China E-51 type epoxy resin
| Model | Enterprise's model | Epoxy equivalent (weight) (g/eq) | Oxirane value (eq/100g) | Viscosity (25 ℃)/(Pa.s) |
| E-51 | 618 | 185～208 | 0.48～0.54 | ≤2.5 |
| Softening temperature (℃) | Color and luster number | Organic chlorine number (eq/100g) | Volatile matter (%) | Inorganic chlorine number (eq/100g) |
| - | ≤2 | 0.02 | ≤2 | 0.001 |
When preparation bituminous epoxy of the present invention, note and select for use by specification.
The preparation process of B component is: earlier with MALEIC ANHYDRIDE and pitch mix 5 hours under 150 ℃ of environment; After treating that its mix is accomplished; Do not have behind any peculiar smell and the smog again 9-octadecenyl amine and poly sebacic polyanhydride joined in the MALEIC ANHYDRIDE that mixes and the bituminous mixture and continue to mix; The quality that 9-octadecenyl amine PM adds is 2% of a B component total mass, and along with the adding bituminous viscosity of 9-octadecenyl amine can reduce, the mix temperature also decreases; Before temperature drops to 90 ℃ from 150 ℃, the 9-octadecenyl amine is added, poly sebacic polyanhydride can disposable interpolation advance in the mixture to go in 9-octadecenyl amine interpolation process.
When warm mixed epoxy bitumen material of the present invention was applied to the upper layer construction, can carry out as follows: the warm mixed epoxy bitumen material that will mix and stir was transported to the working-yard with dump truck, covers with felt cloth in order to be incubated dump truck; Dump truck butt joint paver paves; Pave after the completion, roll for the first time with 8～10 tons of street rollers are round and roll 3 times, first pressing ends and guarantees that temperature is at 80 ± 10 ℃; Roll for the second time and adopt 10～20 tons of street rollers to come and go to roll 3 times; Multiple press to end guarantee temperature at 65 ± 10 ℃, roll for the third time and adopt 8～10 tons of street rollers to come and go to roll 3 times, before pavement temperature drops to 45 ± 10 ℃, accomplish final pressure.
Warm mixed epoxy bitumen of the present invention not only can be used for paving of upper layer, can also be used in the laying of middle surface layer, following surface layer or flexbile base.
The Performance Detection that goes out the warm mixed epoxy bitumen compound of embodiment 1 by conventional Marshall designing method is seen table 19.
Embodiment 2
The warm mixed epoxy bitumen material of the present invention's preparation is mixed and stirred and is formed by A, two kinds of components of B, and the A component is China trade mark bisphenol A type epoxy resin E-51; The B component is by the pitch of 83 weight parts, the MALEIC ANHYDRIDE of 5 weight parts, the 9-octadecenyl amine of 10 weight parts, and the poly sebacic polyanhydride of 2 weight parts is formed; Before mixing and stirring, A, the independent sealed storage of B two components.
The mass ratio of A component and B component is 1: 5.8.
The preparation process of B component is: earlier with MALEIC ANHYDRIDE and pitch mix 6 hours under 150 ℃ of environment; After treating that its mix is accomplished; Do not have behind any peculiar smell and the smog again 9-octadecenyl amine and poly sebacic polyanhydride joined in the MALEIC ANHYDRIDE that mixes and the bituminous mixture and continue to mix; The quality that 9-octadecenyl amine PM adds is 2% of a B component total mass, and along with the adding bituminous viscosity of 9-octadecenyl amine can reduce, the mix temperature also decreases; Before temperature drops to 90 ℃ from 150 ℃, the 9-octadecenyl amine is added, poly sebacic polyanhydride can disposable interpolation advance in the mixture to go in 9-octadecenyl amine interpolation process.
The Performance Detection that goes out the warm mixed epoxy bitumen compound of embodiment 2 by conventional Marshall designing method is seen table 19.
Embodiment 3
The warm mixed epoxy bitumen material of the present invention's preparation is mixed and stirred and is formed by A, two kinds of components of B, and the A component is China trade mark bisphenol A type epoxy resin E-51; The B component is by the pitch of 40 weight parts, the MALEIC ANHYDRIDE of 20 weight parts, the 9-octadecenyl amine of 30 weight parts, and the nonane diacid acid anhydride that gathers of 10 weight parts is formed; Before mixing and stirring, A, the independent sealed storage of B two components.
The mass ratio of A component and B component is 1: 3.
The preparation process of B component is: earlier with MALEIC ANHYDRIDE and pitch mix 5 hours under 150 ℃ of environment; After treating that its mix is accomplished; Do not have behind any peculiar smell and the smog again 9-octadecenyl amine and poly sebacic polyanhydride joined in the MALEIC ANHYDRIDE that mixes and the bituminous mixture and continue to mix; The quality that 9-octadecenyl amine PM adds is 2% of a B component total mass, and along with the adding bituminous viscosity of 9-octadecenyl amine can reduce, the mix temperature also decreases; Before temperature drops to 90 ℃ from 150 ℃, the 9-octadecenyl amine is added, poly sebacic polyanhydride can disposable interpolation advance in the mixture to go in 9-octadecenyl amine interpolation process.
The Performance Detection that goes out the warm mixed epoxy bitumen compound of embodiment 3 by conventional Marshall designing method is seen table 19.
Embodiment 4
The warm mixed epoxy bitumen material of the present invention's preparation is mixed and stirred and is formed by A, two kinds of components of B; The A component is the mixture of China trade mark bisphenol A type epoxy resin E-54, epoxy resin E-52, epoxy resin E-51, four kinds of trade mark epoxy resin of epoxy resin E-44; These four kinds of trade mark epoxy resin account for 20% of A component total mass respectively; 20%, 50%, 10%; The B component is by the pitch of 60 weight parts, the MALEIC ANHYDRIDE of 15 weight parts, the 9-octadecenyl amine of 20 weight parts, and the nonane diacid acid anhydride that gathers of 5 weight parts is formed; Before mixing and stirring, A, the independent sealed storage of B two components.
The mass ratio of A component and B component is 1: 4.3.
The preparation process of B component is: earlier with MALEIC ANHYDRIDE and pitch mix 5 hours under 150 ℃ of environment; After treating that its mix is accomplished; Do not have behind any peculiar smell and the smog again with the 9-octadecenyl amine with gather the nonane diacid acid anhydride and join in the MALEIC ANHYDRIDE that mixes and the bituminous mixture and continue to mix; The quality that 9-octadecenyl amine PM adds is 2% of a B component total mass, and along with the adding bituminous viscosity of 9-octadecenyl amine can reduce, the mix temperature also decreases; Before temperature drops to 90 ℃ from 150 ℃, the 9-octadecenyl amine is added, gather the nonane diacid acid anhydride and can in 9-octadecenyl amine interpolation process, disposable interpolation advance in the mixture to go.Table 4～table 12 has been listed characteristic and the industry standard of bisphenol A type epoxy resin E-54, E-52, E-44 successively.
The salient features of table 4 E-54 type epoxy resin
| Chemical composition | Viscosity (23 ℃)/(Pas) | Epoxy equivalent (weight)/(g/eq) | Organic modifiers or solvent |
| Cyclenes hydro carbons epoxy | Liquid semi-solid | 179～192 | Contain promoting agent and organic solvent |
The supplementary properties of table 5 E-54 type epoxy resin
| Density (23 ℃)/(g/cm 3) | Additive | Characteristic |
| ≤1.15 | Do not have | Has the combustible material of regulation |
Enterprise's general-quality criteria of table 6 China E-54 type epoxy resin
| Model | Enterprise's model | Epoxy equivalent (weight) (g/eq) | Oxirane value (eq/100g) | Viscosity (25 ℃)/(Pa.s) |
| E-54 | 616 | 179～192 | 0.52～0.56 | 5～10 |
| Softening temperature (℃) | Color and luster number | Organic chlorine number (eq/100g) | Volatile matter (%) | Inorganic chlorine number (eq/100g) |
| - | ≤2 | 0.02 | ≤1.5 | 0.001 |
The salient features of table 7 E-52 type epoxy resin
| Chemical composition | Viscosity (23 ℃)/(Pas) | Epoxy equivalent (weight)/(g/eq) | Organic modifiers or solvent |
| Cyclenes hydro carbons epoxy | Liquid semi-solid | 185～196 | Contain promoting agent and organic solvent |
The supplementary properties of table 8 E-52 type epoxy resin
| Density (23 ℃)/(g/cm 3) | Additive | Characteristic |
| ≤1.13 | Do not have | Has the combustible material of regulation |
Enterprise's general-quality criteria of table 9 China E-52 type epoxy resin
| Model | Enterprise's model | Epoxy equivalent (weight) (g/eq) | Oxirane value (eq/100g) | Viscosity (25 ℃)/(Pa.s) |
| E-52 | 618 | 185～196 | 0.48～0.54 | ≤2.5 |
| Softening temperature (℃) | Color and luster number | Organic chlorine number (eq/100g) | Volatile matter (%) | Inorganic chlorine number (eq/100g) |
| - | ≤2 | 0.01 | ≤2 | 0.001 |
The salient features of table 10 E-44 type epoxy resin
| Chemical composition | Viscosity (23 ℃)/(Pas) | Epoxy equivalent (weight)/(g/eq) | Organic modifiers or solvent |
| Cyclenes hydro carbons epoxy | Solid | 213～244 | Contain promoting agent and organic solvent |
The supplementary properties of table 11 E-44 type epoxy resin
| Density (23 ℃)/(g/cm 3) | Additive | Characteristic |
| ≤1.10 | Do not have | Has the combustible material of regulation |
Enterprise's general-quality criteria of table 12 China E-44 type epoxy resin
| Model | Enterprise's model | Epoxy equivalent (weight) (g/eq) | Oxirane value (eq/100g) | Viscosity (25 ℃)/(Pa.s) |
| E-44 | 6101 | 213～244 | 0.41～0.47 | - |
| Softening temperature (℃) | Color and luster number | Organic chlorine number (eq/100g) | Volatile matter (%) | Inorganic chlorine number (eq/100g) |
| 12～20 | ≤6 | 0.02 | ≤1 | 0.001 |
The Performance Detection that goes out the warm mixed epoxy bitumen compound of embodiment 4 by conventional Marshall designing method is seen table 19.
Embodiment 5
The warm mixed epoxy bitumen material of the present invention's preparation is mixed and stirred and is formed by A, two kinds of components of B; The A component is the mixture of China trade mark bisphenol A type epoxy resin E-54, E-52, E-51, four kinds of trade mark epoxy resin of E-44; These four kinds of trade mark epoxy resin account for 20% of A component total mass respectively; 20%, 50%, 10%; The B component is by the pitch of 83 weight parts, the MALEIC ANHYDRIDE of 5 weight parts, the 9-octadecenyl amine of 10 weight parts, and the nonane diacid acid anhydride that gathers of 2 weight parts is formed; Before mixing and stirring, A, the independent sealed storage of B two components.
The mass ratio of A component and B component is 1: 5.8.
The preparation process of B component is: earlier with MALEIC ANHYDRIDE and pitch mix 6 hours under 150 ℃ of environment; After treating that its mix is accomplished; Do not have behind any peculiar smell and the smog again with the 9-octadecenyl amine with gather the nonane diacid acid anhydride and join in the MALEIC ANHYDRIDE that mixes and the bituminous mixture and continue to mix; The quality that 9-octadecenyl amine PM adds is 2% of a B component total mass, and along with the adding bituminous viscosity of 9-octadecenyl amine can reduce, the mix temperature also decreases; Before temperature drops to 90 ℃ from 150 ℃, the 9-octadecenyl amine is added, gather the nonane diacid acid anhydride and can in 9-octadecenyl amine interpolation process, disposable interpolation advance in the mixture to go.
The Performance Detection that goes out the warm mixed epoxy bitumen compound of embodiment 5 by conventional Marshall designing method is seen table 19.
Embodiment 6
The warm mixed epoxy bitumen material of the present invention's preparation is mixed and stirred and is formed by A, two kinds of components of B; The A component is the mixture of China trade mark bisphenol A type epoxy resin E-54, E-52, E-51, four kinds of trade mark epoxy resin of E-44; These four kinds of trade mark epoxy resin account for 20% of A component total mass respectively; 20%, 50%, 10%; The B component is by the pitch of 40 weight parts, the MALEIC ANHYDRIDE of 20 weight parts, the 9-octadecenyl amine of 30 weight parts, and the nonane diacid acid anhydride that gathers of 10 weight parts is formed; Before mixing and stirring, A, the independent sealed storage of B two components.
The mass ratio of A component and B component is 1: 3.
The preparation process of B component is: earlier with MALEIC ANHYDRIDE and pitch mix 5 hours under 150 ℃ of environment; After treating that its mix is accomplished; Do not have behind any peculiar smell and the smog again 9-octadecenyl amine and poly sebacic polyanhydride joined in the MALEIC ANHYDRIDE that mixes and the bituminous mixture and continue to mix; The quality that 9-octadecenyl amine PM adds is 2% of a B component total mass, and along with the adding bituminous viscosity of 9-octadecenyl amine can reduce, the mix temperature also decreases; Before temperature drops to 90 ℃ from 150 ℃, the 9-octadecenyl amine is added, poly sebacic polyanhydride can disposable interpolation advance in the mixture to go in 9-octadecenyl amine interpolation process.
The Performance Detection that goes out the warm mixed epoxy bitumen compound of embodiment 6 by conventional Marshall designing method is seen table 19.
Embodiment 7
Present embodiment has been enumerated a kind of common Warm-Mix Bitumen Mixture and the application contrast of warm mixed epoxy bitumen material of the present invention.Warm mixed epoxy bitumen material in the present embodiment is mixed and stirred and is formed by A, two kinds of components of B, and the A component is China trade mark bisphenol A type epoxy resin E-51; The B component is by the pitch of 60 weight parts, the MALEIC ANHYDRIDE of 15 weight parts, the 9-octadecenyl amine (claiming oleyl amine again) of 20 weight parts, and the poly sebacic polyanhydride of 5 weight parts is formed; Before mixing and stirring, A, the independent sealed storage of B two components.
The mass ratio of A component and B component is 1: 4.3.
Annotate: aforementioned proportion is identical with embodiment 1.
Warm-mixed asphalt technology by common adopts the Marshall method of design.Choose AC-13 according to the JTGF40-2004 code requirement, adopt a kind of thinner grating, a kind of AC-13 grating of table 13 for choosing.
Table 13 AC-13 Mixture Ratio
| 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 |
Building stones and breeze temperature are 115 ℃ during mix, and warm mixed epoxy bitumen material temperature of the present invention is 105 ℃, prepare warm mixed epoxy bitumen material of the present invention before, 80 ℃ (condition does not allow can not heat yet) of epoxy resin insulation.
Warm mixed epoxy bitumen material target voidage of the present invention is 3%, chooses three kinds of bitumen aggregate ratios: 6.0%, 6.5%, 7.0%; Common Warm-Mix Bitumen Mixture target voidage 4% is chosen three kinds of bitumen aggregate ratios: 5.5%, 6.0%, 6.5%; Use the marshall compaction moulding respectively, porosity is calculated result such as table 14:
The bitumen aggregate ratio of table 14 warm mixed epoxy bitumen material of the present invention and common Warm-Mix Bitumen Mixture is confirmed
| Asphalt content (%) | 5.5 | 6.0 | 6.5 | 7.0 |
| Warm mixed epoxy bitumen material voidage of the present invention (%) | - | 4.3 | 3.6 | 2.9 |
| Common Warm-Mix Bitumen Mixture voidage (%) | 5.4 | 4.6 | 3.8 | - |
The 6.8% best bitumen aggregate ratio as warm mixed epoxy bitumen material of the present invention is finally chosen in test, and 6.2% is the best bitumen aggregate ratio of common Warm-Mix Bitumen Mixture.In " asphalt content " delegation, be meant the consumption of A, B components together for warm mixed epoxy bitumen material of the present invention in the table 14.
Grating and bitumen aggregate ratio that Marshall method of design before the experimental evidence is confirmed; Adopt among the JTJ 052-2000 T0702-2000 method respectively moulding the standard marshal piece of 12 warm mixed epoxy bitumen materials of the present invention (sample dimensions:
101.6mm * 63.5mm) and 12 common Warm-Mix Bitumen Mixture standard marshal pieces; What table 15 was represented is in this test, the Marshall Test result of warm mixed epoxy bitumen material of the present invention:
The Marshall Test value of table 15 warm mixed epoxy bitumen material of the present invention and common Warm-Mix Bitumen Mixture
Warm mixed epoxy bitumen completely solidified of the present invention needs the time of some months; Because limited time; Here Marshall intensity that records and following detected result all are the effects of at room temperature having solidified 24h～48h; But these results satisfy the requirement of JTGF40-2004, so do not survey the intensity after its completely solidified.Conditions permit can detect the effect after its completely solidified on the road surface.
Warm-mixed asphalt is commonly used in the tunnel road surface paving, can run into the accumulation of water unavoidably, and in addition, warm-mixed asphalt is because temperature is lower, and bituminous wraps performance does not have the hot-mix asphalt mixture embodiment such complete, like this, just is necessary to detect its anti-water damage property.Present embodiment continues to adopt the freeze thawing split test to detect test as water stability.
T0729-2000 method among the JTJ 052-2000 is adopted in the freeze thawing split test, and table 16, table 17 are respectively the test-results of warm mixed epoxy bitumen material of the present invention and common Warm-Mix Bitumen Mixture:
The freeze thawing splitting value of table 16 warm mixed epoxy bitumen material of the present invention
The freeze thawing splitting value of the common Warm-Mix Bitumen Mixture of table 17
91.9% TSR value explanation warm mixed epoxy bitumen material of the present invention has good anti-water damage property, has exceeded 12 percentage points than 82.3% of common Warm-Mix Bitumen Mixture.
Warm-Mix Bitumen Mixture is mainly used in the big area paving, because warm-mixed asphalt viscosity is lower, along with the rising of temperature, asphalt viscosity can reduce, so the road surface high-temperature stability is extremely important.Present embodiment behind the normal temperature held 48h, carries out wheel tracking test with T0729-2000 method among the JTJ 052-2000 with T0703-1993 method shaping test piece among the JTJ 052-2000, and table 18 is a testing data:
Table 18 wheel tracking test result
| Mix type | Dynamic stability (inferior/mm) | Tension set (mm) | Relative deformation % |
| Warm mixed epoxy bitumen material of the present invention | 4521 | 3.527 | 7.05 |
| Common Warm-Mix Bitumen Mixture | 2012 | 4.843 | 9.69 |
Warm mixed epoxy bitumen material dynamic stability of the present invention is higher than common Warm-Mix Bitumen Mixture far away, explains that warm mixed epoxy bitumen of the present invention has good cohesive force, has good opposing high temperature rut ability.
Can find out that from above test-results the Marshall stability of warm mixed epoxy bitumen material of the present invention, freeze thawing cleavage strength and rut dynamic stability are all considerably beyond the requirement of JTGF40-2004.
By above-mentioned conventional compound method of design, also carried out 24h Marshall stability, freeze thawing split test and the wheel tracking test of embodiment 1～6.The result sees shown in the table 19.
Six kinds of embodiment detected results of table 19
| Test | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 |
| The 24h Marshall stability, KN | 14.68 | 12.35 | 13.67 | 14.72 | 12.63 | 13.60 |
| Visibly moved splitting value, % | 82.3 | 80.4 | 83.2 | 82.1 | 80.6 | 83.0 |
| Dynamic stability, inferior/mm | 4521 | 3611 | 3984 | 4602 | 3729 | 4012 |
Claims (6)
1. warm mixed epoxy bitumen material; Comprise A, two kinds of components of B; Said A component is a two or more mixture arbitrarily in epoxy resin E-51 or epoxy resin E-54, epoxy resin E-52, epoxy resin E-51, the epoxy resin E-44, and the quality of epoxy resin E-44 is no more than 10% of A component total mass; Said B component comprises following composition:
Pitch 40～83 weight parts,
MALEIC ANHYDRIDE 5～20 weight parts,
9-octadecenyl amine 10～30 weight parts,
Poly sebacic polyanhydride or gather nonane diacid acid anhydride 2～10 weight parts;
Said B component needs preparation according to the following steps:
(1) with MALEIC ANHYDRIDE and pitch mix;
(2) the 9-octadecenyl amine is joined in the MALEIC ANHYDRIDE that mixes and the bituminous mixture continue to mix;
(3), step (2) adds poly sebacic polyanhydride or gather the nonane diacid acid anhydride when carrying out;
(4) promptly make the B component after each composition mixes, the mass ratio of said A component and B component is 1: 3～5.8.
2. the preparation method of the warm mixed epoxy bitumen material described in the claim 1 is for mixing the A component with the B component of preparation in advance.
3. the preparation method of warm mixed epoxy bitumen material according to claim 2 is characterized in that, the preparation of B component comprises the steps:
(1) with MALEIC ANHYDRIDE and pitch mix;
(2) the 9-octadecenyl amine is joined in the MALEIC ANHYDRIDE that mixes and the bituminous mixture continue to mix;
(3), step (2) adds poly sebacic polyanhydride or gather the nonane diacid acid anhydride when carrying out;
(4) promptly make the B component after each composition mixes.
4. the preparation method of warm mixed epoxy bitumen material according to claim 3 is characterized in that, in the step (1), and MALEIC ANHYDRIDE and pitch mix 4～6 hours under 150 ℃ of environment.
5. the preparation method of warm mixed epoxy bitumen material according to claim 3 is characterized in that, in the step (2), the quality that 9-octadecenyl amine PM adds is 2% of a B component total mass, and the 9-octadecenyl amine adds before mixture temperature drops to 90 ℃.
6. the preparation method of warm mixed epoxy bitumen material according to claim 3 is characterized in that, in the step (3), and poly sebacic polyanhydride or gather in the disposable adding mixture of nonane diacid acid anhydride.
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| CN101886361B (en) * | 2010-07-21 | 2011-10-26 | 中交第一公路勘察设计研究院有限公司 | Epoxy asphalt and crushed stone drainage foundation |
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| 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 |
| CN102268189A (en) * | 2011-06-14 | 2011-12-07 | 杭州市城市建设科学研究院 | Warm-mixed asphalt additive and preparation method thereof |
| CN102863807B (en) * | 2012-10-17 | 2015-07-01 | 北京碧海舟腐蚀防护工业股份有限公司 | Epoxy asphalt and preparation method thereof, as well as concrete containing same |
| CN103113752A (en) * | 2013-03-05 | 2013-05-22 | 南京大学 | High-performance epoxy resin asphalt warm mixing agent and preparation method thereof |
| CN104861665B (en) * | 2015-04-29 | 2017-11-14 | 上海市政工程设计研究总院（集团）有限公司 | A kind of preparation method for the epoxy bitumen material that foams |
| CN104845392B (en) * | 2015-04-29 | 2017-11-14 | 上海市政工程设计研究总院（集团）有限公司 | One kind foaming epoxy bitumen material |
| CN106635106B (en) * | 2015-11-02 | 2020-03-17 | 中国石油化工股份有限公司 | Viscoelastic high-softening-point asphalt particles, and preparation method and application thereof |
| CN107523076B (en) * | 2016-06-17 | 2020-05-19 | 中国石油化工股份有限公司 | Warm-mixed epoxy asphalt, mixture containing warm-mixed epoxy asphalt and preparation method of warm-mixed epoxy asphalt |
| CN107513277A (en) * | 2016-06-17 | 2017-12-26 | 中国石油化工股份有限公司 | Warm mixed epoxy bitumen, contain its compound and preparation method thereof |
| CN110373143A (en) * | 2019-07-25 | 2019-10-25 | 湖南云中再生科技股份有限公司 | A kind of road and bridge normal temperature cure flexibilized epoxies water-proof adhesive and preparation method thereof |
| CN110438866B (en) * | 2019-08-10 | 2022-06-03 | 深圳市市政工程总公司 | Optimum oilstone ratio design method of warm-mixed asphalt mixture |
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