CN103773041A - Road asphalt modifier and preparation method thereof - Google Patents
Road asphalt modifier and preparation method thereof Download PDFInfo
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- CN103773041A CN103773041A CN201410056567.0A CN201410056567A CN103773041A CN 103773041 A CN103773041 A CN 103773041A CN 201410056567 A CN201410056567 A CN 201410056567A CN 103773041 A CN103773041 A CN 103773041A
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- road asphalt
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- asphalt modifier
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- polyoxyethylene ether
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- 239000003607 modifier Substances 0.000 title claims abstract description 88
- 239000010426 asphalt Substances 0.000 title claims abstract description 77
- 238000002360 preparation method Methods 0.000 title abstract description 16
- 239000000843 powder Substances 0.000 claims abstract description 84
- 239000000203 mixture Substances 0.000 claims abstract description 57
- 229940051841 polyoxyethylene ether Drugs 0.000 claims abstract description 37
- 229920000056 polyoxyethylene ether Polymers 0.000 claims abstract description 37
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims abstract description 34
- 229910052863 mullite Inorganic materials 0.000 claims abstract description 34
- 238000003756 stirring Methods 0.000 claims abstract description 34
- 229920002125 Sokalan® Polymers 0.000 claims abstract description 28
- 239000004584 polyacrylic acid Substances 0.000 claims abstract description 28
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000004381 surface treatment Methods 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 238000002156 mixing Methods 0.000 claims abstract description 11
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 20
- 238000010790 dilution Methods 0.000 claims description 9
- 239000012895 dilution Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 abstract description 5
- 229910052878 cordierite Inorganic materials 0.000 abstract 2
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 abstract 2
- 150000002191 fatty alcohols Chemical class 0.000 abstract 2
- 231100000252 nontoxic Toxicity 0.000 abstract 1
- 230000003000 nontoxic effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 55
- 238000012986 modification Methods 0.000 description 27
- 230000004048 modification Effects 0.000 description 27
- 239000011295 pitch Substances 0.000 description 26
- 238000012360 testing method Methods 0.000 description 22
- 239000007789 gas Substances 0.000 description 13
- 239000011159 matrix material Substances 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 10
- 239000003795 chemical substances by application Substances 0.000 description 6
- 235000019504 cigarettes Nutrition 0.000 description 6
- 239000000779 smoke Substances 0.000 description 6
- 230000002596 correlated effect Effects 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 239000007822 coupling agent Substances 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000010561 standard procedure Methods 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 229920005479 Lucite® Polymers 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000009841 combustion method Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010835 comparative analysis Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000004500 asepsis Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000011301 petroleum pitch Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Abstract
The invention discloses a road asphalt modifier. The road asphalt modifier is prepared from the following main raw materials in parts by weight: 4-20 parts of mullite powder, 6-14 parts of cordierite powder, 1-3 parts of fatty alcohol polyoxyethylene ether and 1-4 parts of polyacrylic acid. In addition, the invention aslo discloses a preparation method of the road asphalt modifier. The preparation method comprises the following steps: step one. mixing the mullite powder and the cordierite powder, uniformly stirring so as to obtain a mixture, adding the mixture to the fatty alcohol polyoxyethylene ether diluted by absolute ethyl alcohol, and uniformly stirring so as to obtained the mixture subjected to surface treatment; and step two. adding the polyacrylic acid to the mixture subjected to surface treatment, and uniformly stirring so as to obtain the road asphalt modifier. All the components in the road asphalt modifier are non-toxic, environmentally-friendly and low in cost; the preparation technology of the modifier is simple, and the modifier has good thermal stability and is suitable for wide application.
Description
Technical field
The invention belongs to asphalt modifier technical field, be specifically related to a kind of road asphalt modifier and preparation method thereof.
Background technology
Along with the development of pavement technique, pitch and asphalt are widely used as pavement material.The pavement performance of asphaltic road-mix surface course is except relevant with the factor such as traffic load, environment, what is more important bituminous material itself, because pitch is strong to the susceptibility of temperature, under high temperature and uviolizing, all easily produce catabiosis, and fatigue performance is poor, limit to a certain extent its use properties.Therefore pitch is carried out to modification and just become the effective measure that improve bituminous material performance, wherein pitch is carried out to the inorganic modified performance that not only can improve pitch and asphalt, can also reduce to a great extent its production cost, so become one of focus of research.In recent years, a lot of novel inorganic asphalt modifiers continue to bring out, and pay attention to widely as the inorganic asphalt modifiers such as nano-calcium carbonate, layered silicate, carbon black, diatomite have been subject to researchist.Inorganic asphalt modifier is that a kind of mixing in pitch can be played the inorganic micro powder class material that improves pitch properties, inorganic asphalt modifier can improve the comprehensive pavement performance of pitch and asphalt to a certain extent, thereby improves the pavement usage quality of pitch.Prior art research shows, conventional inorganic modified material, as nano layered silicate, nano-calcium carbonate, carbon black etc. all can obviously improve every pavement performance of asphalt, expands the use range of asphalt, extends its work-ing life.But, mostly there are problems such as improving performance is single, properties-correcting agent bad dispersibility in current inorganic asphalt modifier, therefore, prior art is urgently developed a kind of novel inorganic asphalt modifier to meet the demand of road bitumen field for the inorganic micro powder class asphalt modifier of excellent property.
Summary of the invention
Technical problem to be solved by this invention is, for above-mentioned deficiency of the prior art, to provide a kind of road asphalt modifier and preparation method thereof.The present invention is material modified as main body using the mixture of two kinds of inorganic micro powders, first utilize coupling agent to carry out surface treatment to inorganic micro powder mixture, dispersion agent is added in the inorganic micro powder mixture after surface treatment and make road asphalt modifier again, not only properties is good to utilize the bituminous material of road asphalt modifier modification of the present invention, and has the performance that resistance cigarette presses down cigarette, purifies air.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of road asphalt modifier, is characterized in that, mainly made by the raw material of following weight part: 4～20 parts of mullite powders, 6～14 parts, trichroite powder, 1～3 part of fatty alcohol-polyoxyethylene ether, 1～4 part of polyacrylic acid; Described fatty alcohol-polyoxyethylene ether is fatty alcohol-polyoxyethylene ether AEO-3, fatty alcohol-polyoxyethylene ether AEO-5 or fatty alcohol-polyoxyethylene ether AEO-7, and the fineness of described mullite powder is 50 order～5000 orders, and the fineness of described trichroite powder is 50 order～5000 orders.
Above-mentioned a kind of road asphalt modifier, is characterized in that, is mainly made up of the raw material of following weight part: 8～16 parts of mullite powders, 8～12 parts, trichroite powder, 2～3 parts of fatty alcohol-polyoxyethylene ether, 2～4 parts of polyacrylic acid.
Above-mentioned a kind of road asphalt modifier, is characterized in that, is mainly made up of the raw material of following weight part: 12 parts of mullite powders, 10 parts, trichroite powder, 2 parts of fatty alcohol-polyoxyethylene ether, 3 parts of polyacrylic acid.
The present invention also provides a kind of preparation method of road asphalt modifier, it is characterized in that, comprises the steps:
Step 1, mullite powder and trichroite powder mixing and stirring are obtained to mixture, described mixture is added in the fatty alcohol-polyoxyethylene ether of dehydrated alcohol dilution, under normal temperature, stir 3h～5h, obtain the mixture after surface treatment; The quality of described dehydrated alcohol is 9～19 times of fatty alcohol-polyoxyethylene ether quality;
Step 2, polyacrylic acid is added described in step 1 in the mixture after surface treatment, stir, obtain road asphalt modifier.
The measure units such as described weight part can be two, jin, ton, gram, kilogram.
Road asphalt modifier prepared by the present invention in the usage of preparing in modifying asphalt is: by asphalt heating to molten state, the road asphalt modifier of again being prepared by the present invention joins that in pitch, stir can (can volatilize completely for the dehydrated alcohol that dilutes fatty alcohol-polyoxyethylene ether) in the time adding pitch to stir, and the quality of described road asphalt modifier is asphalt quality 19%～21%.
The present invention compared with prior art has the following advantages:
1, material modified as main body using the mixture of two kinds of inorganic micro powders in the present invention, first utilize coupling agent to carry out surface treatment to inorganic micro powder mixture, dispersion agent is added in the inorganic micro powder mixture after surface treatment and make road asphalt modifier again, not only properties is good to utilize the bituminous material of road asphalt modifier modification of the present invention, and has the performance that resistance cigarette presses down cigarette, purifies air.
2, the effect that the mullite powder adopting in the present invention and trichroite powder can both play flame-retardant smoke inhibition and purify air, by this, both are mixed to get inorganic micro powder mixture, utilize the diluent of coupling agent fat alcohol polyethylene ether to carry out surface treatment to inorganic micro powder mixture, the surperficial lipophilicity that has strengthened inorganic micro powder mixture can be better compatible with bituminous material, adds in addition polyacrylic acid and can make inorganic micro powder mixture in bituminous material, have good dispersing property as dispersion agent.
3, in road asphalt modifier of the present invention, the equal asepsis environment-protecting of each moiety and cost are low, and the preparation technology of properties-correcting agent is simple, and thermal stability is good, suitable being widely used.
Below by embodiment and accompanying drawing, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of tail gas clean-up rate testing apparatus.
Description of reference numerals:
1-engine; 2-proofing box; 3-exhaust analyzer;
4-lucite pipe.
Embodiment
Embodiment 1
The road asphalt modifier of the present embodiment, is mainly made up of the raw material of following weight part: mullite powder 12g, trichroite powder 10g, fatty alcohol-polyoxyethylene ether AEO-32g, polyacrylic acid 3g; The fineness of described mullite powder is 3000 orders, and the fineness of described trichroite powder is 3000 orders.
The preparation method of the road asphalt modifier of the present embodiment is:
Step 1, mullite powder and trichroite powder mixing and stirring are obtained to mixture, described mixture is added in the fatty alcohol-polyoxyethylene ether of dehydrated alcohol dilution, under normal temperature, stir 3h, obtain surface-treated mixture; The quality of described dehydrated alcohol is 20g;
Step 2, polyacrylic acid is added described in step 1 in the mixture after surface treatment, stir, obtain road asphalt modifier.
Comparative example 1
According to the method for embodiment 1, do not add fatty alcohol-polyoxyethylene ether AEO-3 and polyacrylic acid and prepare road asphalt modifier.
Comparative example 2
According to the method for embodiment 1, do not add polyacrylic acid and prepare road asphalt modifier.
Embodiment 2
The road asphalt modifier of the present embodiment, is mainly made up of the raw material of following weight part: mullite powder 4g, trichroite powder 14g, fatty alcohol-polyoxyethylene ether AEO-31g, polyacrylic acid 1g; The fineness of described mullite powder is 1000 orders, and the fineness of described trichroite powder is 2000 orders.
The preparation method of the road asphalt modifier of the present embodiment is:
Step 1, mullite powder and trichroite powder mixing and stirring are obtained to mixture, described mixture is added in the fatty alcohol-polyoxyethylene ether of dehydrated alcohol dilution, under normal temperature, stir 4h, obtain surface-treated mixture; The quality of described dehydrated alcohol is 9g;
Step 2, polyacrylic acid is added described in step 1 in the mixture after surface treatment, stir, obtain road asphalt modifier.
Embodiment 3
The road asphalt modifier of the present embodiment, is mainly made up of the raw material of following weight part: 8 jin of mullite powders, 10 jin, trichroite powder, fatty alcohol-polyoxyethylene ether AEO-52 jin, 4 jin of polyacrylic acid; The fineness of described mullite powder is 2000 orders, and the fineness of described trichroite powder is 1000 orders.
The preparation method of the road asphalt modifier of the present embodiment is:
Step 1, mullite powder and trichroite powder mixing and stirring are obtained to mixture, described mixture is added in the fatty alcohol-polyoxyethylene ether of dehydrated alcohol dilution, under normal temperature, stir 3.5h, obtain surface-treated mixture; The quality of described dehydrated alcohol is 28 jin;
Step 2, polyacrylic acid is added described in step 1 in the mixture after surface treatment, stir, obtain road asphalt modifier.
Embodiment 4
The road asphalt modifier of the present embodiment, is mainly made up of the raw material of following weight part: mullite powder 12g, trichroite powder 8g, fatty alcohol-polyoxyethylene ether AEO-51g, polyacrylic acid 2g; The fineness of described mullite powder is 5000 orders, and the fineness of described trichroite powder is 50 orders.
The preparation method of the road asphalt modifier of the present embodiment is:
Step 1, mullite powder and trichroite powder mixing and stirring are obtained to mixture, described mixture is added in the fatty alcohol-polyoxyethylene ether of dehydrated alcohol dilution, under normal temperature, stir 4h, obtain surface-treated mixture; The quality of described dehydrated alcohol is 19g;
Step 2, polyacrylic acid is added described in step 1 in the mixture after surface treatment, stir, obtain road asphalt modifier.
Embodiment 5
The road asphalt modifier of the present embodiment, is mainly made up of the raw material of following weight part: mullite powder 14g, trichroite powder 12g, fatty alcohol-polyoxyethylene ether AEO-73g, polyacrylic acid 3g; The fineness of described mullite powder is 4000 orders, and the fineness of described trichroite powder is 300 orders.
The preparation method of the road asphalt modifier of the present embodiment is:
Step 1, mullite powder and trichroite powder mixing and stirring are obtained to mixture, described mixture is added in the fatty alcohol-polyoxyethylene ether of dehydrated alcohol dilution, under normal temperature, stir 5h, obtain surface-treated mixture; The quality of described dehydrated alcohol is 48g;
Step 2, polyacrylic acid is added described in step 1 in the mixture after surface treatment, stir, obtain road asphalt modifier.
Embodiment 6
The road asphalt modifier of the present embodiment, is mainly made up of the raw material of following weight part: mullite powder 16g, trichroite powder 8g, fatty alcohol-polyoxyethylene ether AEO-72g, polyacrylic acid 2g; The fineness of described mullite powder is 300 orders, and the fineness of described trichroite powder is 5000 orders.
The preparation method of the road asphalt modifier of the present embodiment is:
Step 1, mullite powder and trichroite powder mixing and stirring are obtained to mixture, described mixture is added in the fatty alcohol-polyoxyethylene ether of dehydrated alcohol dilution, under normal temperature, stir 4.5h, obtain surface-treated mixture; The quality of described dehydrated alcohol is 34g;
Step 2, polyacrylic acid is added described in step 1 in the mixture after surface treatment, stir, obtain road asphalt modifier.
Embodiment 7
The road asphalt modifier of the present embodiment, is mainly made up of the raw material of following weight part: mullite powder 20g, trichroite powder 6g, fatty alcohol-polyoxyethylene ether AEO-73g, polyacrylic acid 4g; The fineness of described mullite powder is 50 orders, and the fineness of described trichroite powder is 4000 orders.
The preparation method of the road asphalt modifier of the present embodiment is:
Step 1, mullite powder and trichroite powder mixing and stirring are obtained to mixture, described mixture is added in the fatty alcohol-polyoxyethylene ether of dehydrated alcohol dilution, under normal temperature, stir 4h, obtain surface-treated mixture; The quality of described dehydrated alcohol is 48g;
Step 2, polyacrylic acid is added described in step 1 in the mixture after surface treatment, stir, obtain road asphalt modifier.
Road asphalt modifier is in the usage of preparing in modifying asphalt
Matrix pitch is heated to molten state, again the road asphalt modifier of embodiment 1～7 and comparative example 1～2 is joined respectively in matrix pitch and stir and get final product (in the time adding pitch to stir, can volatilize completely for the dehydrated alcohol that dilutes fatty alcohol-polyoxyethylene ether), described matrix pitch is Korea S SK70# petroleum pitch, and the quality of described road asphalt modifier is 19%～21% of matrix pitch quality.
Performance test
Prepare respectively rut plate sample, the rut plate sample of bituminous material of embodiment 1～7 modifier modification and the rut plate sample of the bituminous material of comparative example 1～2 modifier modification of matrix pitch material according to the requirement of " highway engineering pitch and Asphalt Mixture Experiment rules " (JTG E-20-2011), test the correlated performance indexs such as the softening temperature, penetration degree, ductility of the bituminous material of different modifier modifications; According to the flue gas toxity grade after the bituminous material burning of " equipment and device component plastic material combustion testing " standard method difference test implementation example 1～7 modifier modification (UL94), result shows that it is all accurate safe one-levels (ZA1) that the pitch of employing embodiment 1～7 modifier modification produces flue gas toxity grade after burning, has good security; Test respectively the oxygen index of the bituminous material of matrix pitch material, embodiment 1～7 modifier modification and the bituminous material of comparative example 1～2 modifier modification according to " Plastics Combustion method for testing performance " standard method (GB/T2406-93); Test respectively the bituminous material of matrix pitch material, embodiment 1～7 modifier modification and the smoke density of the bituminous material of comparative example 1～2 modifier modification under burning or decomposition run condition according to " material of construction burning or the smoke density test method of decomposing " standard method (GB/T8627-2007).
The test of tail gas clean-up rate
Test respectively the bituminous material of matrix pitch material, embodiment 1～7 modifier modification and the bituminous material of comparative example 1～2 modifier modification to NO by tail gas clean-up rate testing apparatus as shown in Figure 1
xand C
xh
yit is gas cleaning rate, test method is: (one) testing apparatus: as shown in Figure 1, tail gas clean-up rate testing apparatus is made up of engine 1, proofing box 2, exhaust analyzer 3, between the venting port of described engine 1 and the intake valve of proofing box 2, be connected by lucite pipe 4 between the vent valve of proofing box 2 and the inlet mouth of tail gas tester 3; (2) test process: first exhaust analyzer 3 is moved to 15min preheating, again the rut plate sample of the bituminous material of embodiment 1 modifier modification is put into proofing box 2, then open engine 1 and exhaust analyzer 3, open intake valve and the vent valve of proofing box 2, after ventilation 20min～30in, kill engine 1, intake valve and the vent valve of closing proofing box 2, record NO on exhaust analyzer 3
xand C
xh
ybe the starting point concentration value of gas, after 6h～8h, open vent valve, test and record NO on exhaust analyzer 3
xand C
xh
ybe the ultimate density value of gas, do to adopt the bituminous material of embodiment 1 modifier modification to NO than calculating with difference and the starting point concentration value of starting point concentration value and ultimate density value
xand C
xh
ybe gas cleaning rate, complete the bituminous material of embodiment 1 modifier modification to NO
xand C
xh
ybe the test of gas purification coefficiency, under same test conditions, complete successively the bituminous material of matrix pitch material, embodiment 2～7 modifier modifications and the bituminous material of comparative example 1～2 modifier modification to NO
xand C
xh
yit is the test of gas cleaning rate; The correlated performance index test result of the bituminous material of different modifier modifications and to NO
x, C
xh
ybe that gas cleaning rate test result is as shown in table 1.
The correlated performance index of the bituminous material of the different modifier modifications of table 1 and the test result of purification rate
As seen from Table 1: the index such as the penetration degree of the bituminous material of embodiment 1～7 modifier modification, softening temperature, ductility all reached " highway engineering pitch and Asphalt Mixture Experiment rules " (JTGE20-2011) in requirement to the each correlated performance index of bituminous material, be compared to unmodified matrix pitch material, the interpolation of embodiment 1～7 road asphalt modifier can effectively improve the properties of bituminous material, thereby further improves the pavement performance that utilizes asphalt prepared by modified asphalt material.
The oxygen index of the bituminous material of embodiment 1～7 modifier modification is all greater than 25, reached China " Plastics Combustion method for testing performance " (GB/T2406-93) in requirement to material combustion performance, the oxygen index of partially modified bituminous material even reaches more than 27, belongs to nonflammable material.
The smoke density of the bituminous material of embodiment 1～7 modifier modification is all less than 75, reached China's " material of construction burning or smoke density test method of decomposing " (GB/T8627) in to the requirement of material smoke density, the flue gas toxity grade safe one-level (ZA1) that is all as the criterion, and for NO
xand H
xc
ybe that gas has good decontamination effect improving.
The correlated performance index test result of the bituminous material of comparative analysis embodiment 1～7 modifier modification and matrix pitch material can be found out, road asphalt modifier add the properties that not only can significantly improve bituminous material, and can make bituminous material there is the performance that good resistance cigarette presses down cigarette, purifies air.The bituminous material of comparative analysis embodiment 1, comparative example 1 and comparative example 2 modifier modifications can be found out, in embodiment 1, utilize the diluent of coupling agent fat alcohol polyethylene ether to carry out surface treatment to inorganic micro powder mixture, the surperficial lipophilicity that has strengthened inorganic micro powder mixture can be better compatible with bituminous material, in addition add polyacrylic acid and can make inorganic micro powder mixture in bituminous material, there is good dispersing property as dispersion agent, be conducive to strengthen the improvement effect of inorganic micro powder mixture to bituminous material properties.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every any simple modification of above embodiment being done according to the technology of the present invention essence, change and equivalent structure change, and all still belong in the protection domain of technical solution of the present invention.
Claims (4)
1. a road asphalt modifier, is characterized in that, is mainly made up of the raw material of following weight part: 4～20 parts of mullite powders, 6～14 parts, trichroite powder, 1～3 part of fatty alcohol-polyoxyethylene ether, 1～4 part of polyacrylic acid; Described fatty alcohol-polyoxyethylene ether is fatty alcohol-polyoxyethylene ether AEO-3, fatty alcohol-polyoxyethylene ether AEO-5 or fatty alcohol-polyoxyethylene ether AEO-7, and the fineness of described mullite powder is 50 order～5000 orders, and the fineness of described trichroite powder is 50 order～5000 orders.
2. according to a kind of road asphalt modifier claimed in claim 1, it is characterized in that, mainly made by the raw material of following weight part: 8～16 parts of mullite powders, 8～12 parts, trichroite powder, 2～3 parts of fatty alcohol-polyoxyethylene ether, 2～4 parts of polyacrylic acid.
3. according to a kind of road asphalt modifier claimed in claim 2, it is characterized in that, mainly made by the raw material of following weight part: 12 parts of mullite powders, 10 parts, trichroite powder, 2 parts of fatty alcohol-polyoxyethylene ether, 3 parts of polyacrylic acid.
4. prepare a method for road asphalt modifier as claimed in claim 1, it is characterized in that, comprise the steps:
Step 1, mullite powder and trichroite powder mixing and stirring are obtained to mixture, described mixture is added in the fatty alcohol-polyoxyethylene ether of dehydrated alcohol dilution, under normal temperature, stir 3h～5h, obtain the mixture after surface treatment; The quality of described dehydrated alcohol is 9～19 times of fatty alcohol-polyoxyethylene ether quality;
Step 2, polyacrylic acid is added described in step 1 in the mixture after surface treatment, stir, obtain road asphalt modifier.
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| CN201410056567.0A CN103773041B (en) | 2014-02-19 | 2014-02-19 | A kind of road asphalt modifier and preparation method thereof |
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|---|---|---|---|
| CN201410056567.0A CN103773041B (en) | 2014-02-19 | 2014-02-19 | A kind of road asphalt modifier and preparation method thereof |
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| CN103773041B CN103773041B (en) | 2016-01-20 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10287477B2 (en) | 2017-02-03 | 2019-05-14 | Saudi Arabian Oil Company | Dispersant in cement formulations for oil and gas wells |
| CN111136991A (en) * | 2020-02-24 | 2020-05-12 | 潍坊市宇虹防水材料(集团)有限公司 | Polymer modified asphalt waterproof coiled material with good aging resistance and preparation method thereof |
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