CN102435579A - Method for determining petroleum asphalt by infrared spectrogram of petroleum asphalt - Google Patents
Method for determining petroleum asphalt by infrared spectrogram of petroleum asphalt Download PDFInfo
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- CN102435579A CN102435579A CN2011103898145A CN201110389814A CN102435579A CN 102435579 A CN102435579 A CN 102435579A CN 2011103898145 A CN2011103898145 A CN 2011103898145A CN 201110389814 A CN201110389814 A CN 201110389814A CN 102435579 A CN102435579 A CN 102435579A
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Abstract
The invention discloses a method for determining petroleum asphalt by an infrared spectrogram of the petroleum asphalt, which comprises the following steps: preparing an asphalt solution; obtaining the infrared spectrogram of the asphalt solution; analyzing a curve of the infrared spectrogram of the asphalt solution, comparing the curve with the curve characteristics of the known petroleum asphalt infrared spectrogram, and judging as petroleum asphalt if accordant. At more than 3500 cm-1, -OH at a free state vibrates at a stretching mode to generate an absorption peak; near 2920 cm-1, a stronger absorption peak appears, the peak type is sharp, which represents the dissymmetrical stretching vibration of methylene-CH2-; near 2850cm-1, a stronger absorption peak appears, the peak type is sharp, which represents the symmetrical stretching vibration of methylene-CH2-; and a weaker absorption peak appears near 1600 cm-1, which is reflects the vibration of a benzene ring skeleton structure and a C = O bond. In the method, the determined characteristics of the infrared spectrogram of an asphalt sample are compared according to the specific characteristics of the infrared spectrogram of the petroleum asphalt so as to determine whether the asphalt sample is the petroleum asphalt or not. The method is simple to operate, and the determination result is accurate.
Description
Technical field
The invention belongs to the asphalt material analysis technical field, be specifically related to a kind of method of utilizing the infrared spectrogram mensuration petroleum bitumen of petroleum bitumen.
Background technology
The most frequently used asphalt material is petroleum bitumen and coal-tar pitch in the road construction, and wherein, petroleum bitumen has excellent plasticity and cohesiveness, and aboundresources is cheap, as the road pavement material long history is arranged.Along with Freeway Development, the use amount of petroleum bitumen is also increasing.Because the complicacy that pitch is formed, it is the relatively work of difficulty at present that use pitch is analyzed.In recent ten years, infrared spectrum has received concern to a certain degree in the chemical structure analysis of pitch, become one of the most frequently used micro-analysis method.IR spectroscopy is an important means during organic compound structure is identified, at organic structural analysis, particularly the evaluation aspect of functional group has vital role.Infrared spectrum is meant that with wavelength or wave number be horizontal ordinate, is the spectrogram of resulting reflection infrared-ray of ordinate and matter interaction with intensity or other character with wavelength change.But existing research and using shows, and is very few about the infrared spectrum spectrogram data of petroleum bitumen, therefore, utilizes infrared spectrum that the assay method of petroleum bitumen is still waiting further to explore and research.
Summary of the invention
To defective that exists in the above-mentioned prior art or deficiency; The objective of the invention is to, a kind of method of utilizing the petroleum bitumen infrared spectrogram to measure petroleum bitumen is provided, this method is according to the distinctive characteristic of the infrared spectrogram of petroleum bitumen; Characteristic to the infrared spectrogram of the asphalt sample that records compares; Thereby whether be petroleum bitumen, this method is simple to operate if measuring this asphalt sample, and it is accurate to measure the result.
In order to achieve the above object, the present invention adopts following technical solution:
A kind of method of utilizing the infrared spectrogram mensuration petroleum bitumen of petroleum bitumen is characterized in that, specifically comprises the steps:
The infrared spectrum of the cold primer-oil of step 2, determination step one obtains its infrared spectrogram;
The curve of the infrared spectrogram of analysis cold primer-oil is at infrared spectrum 4000～400cm
-1Characteristic in the wave-number range; This characteristic is compared with the curvilinear characteristic of known petroleum bitumen infrared spectrogram; If both are in full accord; Then judge the unknown asphalt sample to be petroleum bitumen, otherwise be not petroleum bitumen that the curvilinear characteristic of said known petroleum bitumen infrared spectrogram is according to infrared spectrum 4000～400cm
-1Be described below from high to low in the wave-number range:
1) 3500cm
-1More than: free state-OH stretching vibration generation absorption peak;
2) 2920cm
-1Near, a stronger absorption peak appears, and the peak type is sharp-pointed, is methylene-CH
2-antisymmetric stretching vibration;
3) 2850cm
-1Near, a stronger absorption peak appears, and the peak type is sharp-pointed, is methylene-CH
2-symmetrical stretching vibration;
4) 1600cm
-1Near the more weak absorption peak of appearance reacts the vibration for phenyl ring skeleton structure and C=O key;
5) 1460cm
-1Near the medium absorption peak of intensity appears, the peak type is sharp-pointed, shows as methyl C-CH
3In stretching vibration and-CH in the C-H face
2The result of stretching vibration in the-middle C-H face;
6) 1380cm
-1Near appearance-CH
3The symmetric deformation vibration absorption peak;
7) 900～650cm
-1Between occur on the phenyl ring=C-H wagging vibration absorption peak.
Further, said step 1 specifically comprises the steps:
1) with tool plug triangular flask 120 ℃ of oven dry in following 20 minutes in baking oven of wash clean, is cooled to room temperature.
2) take by weighing the good asphalt sample 1g of fusing, be accurate to behind the radix point the 4th when taking by weighing, using CS in the tool plug triangular flask of unknown asphalt sample after oven dry
2Dissolving is mixed with concentration and is 5% cold primer-oil.
Further, said step 2 specifically comprises the steps:
Using the digital display pipettor is that 5% cold primer-oil is filled with the KBr liquid cell of thickness as 0.1mm with mass concentration, at 4000cm
-1～500cm
-1Scan in the scope, measure its infrared spectrum, obtain the infrared spectrogram of cold primer-oil.
Advantage of the present invention:
1, the theoretical analysis foundation is abundant, the experimental principle science, and the infared spectrum analysis is accurate.
2, accurately take by weighing pitch, test process is strict, handles accurately, and it is minimum that experimental error is dropped to.
3, the figure spectrum signature data standard as a reference of the infrared spectrum of petroleum bitumen is proposed.
4, the test specimen convenient sample making, test speed is fast, data processing is simple, analysis result is accurate.
Description of drawings
Fig. 1 is the infrared spectrum curve of asphalt sample of the test gained of embodiment 1.
Fig. 2 is the infrared spectrum curve of the asphalt sample of embodiment 2 test gained.
Fig. 3 is the infrared spectrum curve of the asphalt sample of embodiment 3 test gained.
Fig. 4 is the infrared spectrum curve of the asphalt sample of embodiment 4 test gained.
Fig. 5 is the infrared spectrum curve of the asphalt sample of embodiment 5 test gained.
Fig. 6 is the infrared spectrum curve of the asphalt sample of embodiment 6 test gained.
Fig. 7 is the infrared spectrum curve of the asphalt sample of embodiment 7 test gained.
Fig. 8 is the infrared spectrum curve of the asphalt sample of embodiment 8 test gained.
Fig. 9 is the infrared spectrum curve of the asphalt sample of embodiment 9 test gained.
Figure 10 is the infrared spectrum curve of the asphalt sample of embodiment 10 test gained.
Figure 11 is the infrared spectrum curve of the asphalt sample of embodiment 11 test gained.
Figure 12 is the infrared spectrum curve of the asphalt sample of embodiment 12 test gained.
Below in conjunction with accompanying drawing and embodiment the present invention is further explained.
Embodiment
Rationale of the present invention and verification experimental verification:
Through discovering, there is notable difference in the infrared spectrum of petroleum bitumen and rock asphalt, coal-tar pitch; Petroleum bitumen consist of various hydrocarbon and their derivatives, and organic group has corresponding absorption frequency to infrared spectrum, therefore available infrared spectrum characterizes petroleum bitumen, the composition and the structure of reflection pitch.The present invention at first studies the composition structure of petroleum bitumen, finds out the main functional group of its composition structure of reflection in the petroleum bitumen; Analyze the infrared absorption spectrum of petroleum bitumen main functional group then, obtain absorption peak characteristic that petroleum bitumen infrared spectrum collection of illustrative plates should possess and with the corresponding relation of functional group, disclosed the absorption peak characteristic that petroleum bitumen infrared spectrum collection of illustrative plates should possess; The concrete analysis process is following:
The composition structure analysis of A, petroleum bitumen
The potpourri that petroleum bitumen is made up of various hydrocarbons and nonmetal derivant thereof, chemical group mainly are carbon (80%-87%), and hydrogen (10%-15%) secondly is oxygen, sulphur, nitrogen.The petroleum bitumen structure of chemical composition is complicated, and wherein ratio of carbon-hydrogen (C/H) can explain that to a certain extent hydrocarbon-based belongs to the general proportions of content, thereby reflects the general picture of petroleum bitumen structure of chemical composition indirectly.The still difficult composition with pitch of prior art is divided into pure compound, and present four component analyses of using always are divided into bituminous matter, saturated branch, cycloalkanes fragrance branch, polarity fragrance branch with the composition of pitch.The petroleum bitumen structure is glue nuclear with the bituminous matter, and colloid parcel bituminous matter forms micelle and is dispersed in the lightweight oil content.
The infrared signature frequency analysis of main group in B, the petroleum bitumen
The component of petroleum bitumen is mainly aromatics, and wherein benzene ring structure is more, is aliphatic hydrocarbon secondly.The C-H antisymmetric stretching vibration on the phenyl ring and the vibration of phenyl ring skeleton and frequency are at 3070-3030cm
-1The zone produces one group of absorption band; Its in-plane bending vibration bands of a spectrum are at 1300-1000cm
-1The place is prone to covered by other peaks; The out-of-plane bending vibration bands of a spectrum are at 900-650cm
-1The zone produces strong absorption peak, to confirming that benzene ring substitution group has characteristic.Tool characteristic is C-H stretching vibration and angle vibration in the aliphatic hydrocarbon.The CH in-plane bending vibration is corresponding to 1475～1300cm
-1The district ,-CH
3Be 1380cm
-1Unimodal, the C-H stretching vibration often appears at 3000-2750cm
-1The place; Methylene-CH
2-antisymmetric stretching vibration wave number (2926 ± 10) cm
-1Tertiary hydrogen C-H stretching vibration is about 2870cm
-1-CH
3Antisymmetry angle vibration wave number be (1460 ± 10) cm
-1C-C skeletal vibration wave number is at 1250～1150cm
-1Unsaturated link C=C stretching vibration appears at 1660～1630cm
-1＞C=O stretching vibration district is 1900～1650cm
-1The district; The normal zone that occurs of C=O is 1755～1670cm
-1The district is because the C=O electric dipole moment is bigger, so the peak is generally stronger.Ketone is generally 1710cm
-1, ester is 1735～1710cm
-1, acid amides is 1700～1680cm
-1Then remove 1710cm for carboxylic acid
-1(C=O) outward also has 3300～3900cm
-1The absorption of (-OH).＞C=C＜, wave number 1680～1620cm
-1＞C=N-, wave number 1690～1640cm
-1-N=N-, wave number 1630～1575cm
-1
C, petroleum bitumen infrared spectrogram spectrum signature
By among A, the B petroleum bitumen being formed the analysis of structure and group infrared signature frequency, and the absorption peak characteristic that combines its spectral strength to infer petroleum bitumen infrared spectrum curve should to possess (strong and obviously be prone to the spectrum peak characteristic distinguished).The infared spectrum curve of even unknown asphalt sample has possessed following characteristic, and promptly provable this sample is a petroleum bitumen.Petroleum bitumen infrared spectrum curvilinear characteristic is according to middle infrared spectrum 4000～400cm
-1Be described as from high to low in the wave-number range:
1) 3500cm
-1More than: free state-OH stretching vibration generation absorption peak;
2) 2920cm
-1Near, a stronger absorption peak appears, and the peak type is sharp-pointed, is methylene-CH
2-antisymmetric stretching vibration;
3) 2850cm
-1Near, a stronger absorption peak appears, and the peak type is sharp-pointed, is methylene-CH
2-symmetrical stretching vibration;
4) 1600cm
-1Near the more weak absorption peak of appearance reacts the vibration for phenyl ring skeleton structure and C=O key;
5) 1460cm
-1Near the medium absorption peak of intensity appears, the peak type is sharp-pointed, shows as methyl C-CH
3In in the C-H face stretching vibration (angle vibration) and-CH
2The result of stretching vibration (flexural vibrations) in-middle C-H face;
6) 1380cm
-1Near appearance-CH
3Symmetric deformation vibration (scissoring vibration) absorption peak;
7) 900～650cm
-1Between occur on the phenyl ring=C-H wagging vibration absorption peak.
The method of utilizing the infrared spectrogram mensuration petroleum bitumen of petroleum bitumen of the present invention specifically comprises the steps:
1) with tool plug triangular flask 120 ℃ of oven dry in following 20 minutes in baking oven of wash clean, is cooled to room temperature.
2) take by weighing the good asphalt sample 1g of fusing, be accurate to behind the radix point the 4th when taking by weighing, using CS in the tool plug triangular flask of unknown asphalt sample after oven dry
2Dissolving is mixed with concentration and is 5% cold primer-oil.
Attention: sample making requires accurately, because CS
2Volatile, should do existing preparation at present.
The infrared spectrum of the cold primer-oil of step 2, determination step one obtains its infrared spectrogram;
1) using the digital display pipettor is that 5% cold primer-oil is filled with the KBr liquid cell of thickness as 0.1mm with mass concentration, at 4000cm
-1～500cm
-1Scan in the scope, measure its infrared spectrum, obtain the infrared spectrogram of cold primer-oil.
2) mensuration finishes, and uses CS
2Liquid cell is fully clean, liquid cell is dried subsequent use with infrared lamp.
The curve of the infrared spectrogram of analysis cold primer-oil is at infrared spectrum 4000～400cm
-1Characteristic in the wave-number range is compared this characteristic with the curvilinear characteristic of known petroleum bitumen infrared spectrogram, if both are in full accord, then judgement should the unknown asphalt sample be a petroleum bitumen, otherwise was not petroleum bitumen; The curvilinear characteristic of said known petroleum bitumen infrared spectrogram is according to infrared spectrum 4000～400cm
-1Be described below from high to low in the wave-number range:
1) 3500cm
-1More than: free state-OH stretching vibration generation absorption peak;
2) 2920cm
-1Near, a stronger absorption peak appears, and the peak type is sharp-pointed, is methylene-CH
2-antisymmetric stretching vibration;
3) 2850cm
-1Near, a stronger absorption peak appears, and the peak type is sharp-pointed, is methylene-CH
2-symmetrical stretching vibration;
4) 1600cm
-1Near the more weak absorption peak of appearance reacts the vibration for phenyl ring skeleton structure and C=O key;
5) 1460cm
-1Near the medium absorption peak of intensity appears, the peak type is sharp-pointed, shows as methyl C-CH
3In in the C-H face stretching vibration (angle vibration) and-CH
2The result of stretching vibration (flexural vibrations) in-middle C-H face;
6) 1380cm
-1Near appearance-CH
3Symmetric deformation vibration (scissoring vibration) absorption peak;
7) 900～650cm
-1Between occur on the phenyl ring=C-H wagging vibration absorption peak.
Embodiment 1:
Present embodiment is chosen the matrix pitch of certain highway working-yard as unknown asphalt sample, and this unknown asphalt sample is carried out ftir analysis; Test apparatus of selecting for use and material have WQF-400 Fourier transformation infrared spectrometer, the fixed liquid cell of potassium bromide (thickness 0.1mm), electronic balance (100,000/precision), CS
2(analyzing pure) and digital display pipettor etc.
Tool plug triangular flask 120 ℃ of oven dry in following 20 minutes in baking oven with wash clean are cooled to room temperature; Take by weighing the good unknown asphalt sample 1g of fusing with electronic balance, then with using CS in its tool plug triangular flask after oven dry
2Dissolving is mixed with concentration and is 5% matrix pitch standard solution sample, is accurate to behind the radix point the 4th when taking by weighing; Using the digital display pipettor is that 5% matrix pitch standard solution sample is filled with the KBr liquid cell of thickness as 0.1mm with mass concentration, at 4000cm
-1～500cm
-1Scan in the scope, measure infrared spectrum, obtain the infrared spectrogram (referring to Fig. 1) of above-mentioned cold primer-oil; Mensuration finishes, and uses CS
2Liquid cell is fully clean, liquid cell is dried subsequent use with infrared lamp.
Analyze the infrared spectrum collection of illustrative plates of this unknown asphalt sample, its curve is at 2921～2852cm
-1, 1602cm
-1, 1456cm
-1, 1376cm
-1, 650～910cm
-1There is the obvious characteristics absorption peak at the place, obtains the ft-ir characteristic absorption peak as shown in table 1 and the corresponding relation of group, is consistent with the petroleum bitumen diffuse reflectance infrared spectroscopy of theoretical analysis, therefore, can judge that this asphalt sample is a petroleum bitumen.Measure the back and confirm to construction party the feedback information of construction party has affirmed the unknown asphalt sample to be petroleum bitumen.
The public infrared signature absorption peak of table 1 petroleum bitumen analytical table
| Absorption frequency, cm -1 | Interpretation of result |
| 2921～2852 | -CH 2The result of-stretching vibration |
| 1602 | C=C (phenyl ring skeletal vibration) and C=O absorption cause |
| 1456 | C-CH 3With-CH 2The result of stretching vibration in the-middle C-H face |
| 1376 | -CH 3-scissoring vibration absorption peak |
| 650～910 | The result of C-H wagging vibration on the phenyl ring |
| 2365～2335 | Fail all to deduct the CO in the air background during mapping 2And form |
Embodiment 2:
The difference of present embodiment and embodiment 1 is, with Korea S SK-90
#The oil matrix pitch is as unknown asphalt sample; Obtain infrared spectrogram as shown in Figure 2, analyze its characteristic and characteristic is compared with the infrared spectrum curvilinear characteristic of petroleum bitumen, can determine that it is petroleum bitumen; Conform to actual conditions, verified validity of the present invention.
Embodiment 3:
The difference of present embodiment and embodiment 1 is, with shell-90
#Petroleum bitumen obtains infrared spectrogram as shown in Figure 3 as unknown asphalt sample.Analysis result conforms to actual conditions.
Embodiment 4:
The difference of present embodiment and embodiment 1 is, with Panjin-90
#Petroleum bitumen obtains infrared spectrogram as shown in Figure 4 as unknown asphalt sample.Analysis result conforms to actual conditions.
Embodiment 5:
The difference of present embodiment and embodiment 1 is, with Xinjiang Tahe-90
#Petroleum bitumen is as unknown asphalt sample.Obtain infrared spectrogram as shown in Figure 5.Analysis result conforms to actual conditions.
Embodiment 6:
The difference of present embodiment and embodiment 1 is, with middle extra large 36-90
#Petroleum bitumen is as unknown asphalt sample.Obtain infrared spectrogram as shown in Figure 6.Analysis result conforms to actual conditions.
Embodiment 7:
The difference of present embodiment and embodiment 1 is, with Korea S SK-70
#As unknown asphalt sample.Obtain infrared spectrogram as shown in Figure 7.Analysis result conforms to actual conditions.
Embodiment 8:
The difference of present embodiment and embodiment 1 is, with Kelamayi, Xinjiang-70
#Petroleum bitumen is as unknown asphalt sample.Obtain infrared spectrogram as shown in Figure 8.Analysis result conforms to actual conditions.
Embodiment 9:
The difference of present embodiment and embodiment 1 is, with Panjin-110
#Petroleum bitumen is as unknown asphalt sample.Obtain infrared spectrogram as shown in Figure 9.Analysis result conforms to actual conditions.
Embodiment 10:
The difference of present embodiment and embodiment 1 is, with Panjin-120
#Petroleum bitumen is as unknown asphalt sample.Obtain infrared spectrogram shown in figure 10.Analysis result conforms to actual conditions.
Embodiment 11:
The difference of present embodiment and embodiment 1 is, with Tianchi, Tibet-130
#Petroleum bitumen is as unknown asphalt sample.Obtain infrared spectrogram shown in figure 11.Analysis result conforms to actual conditions.
Embodiment 12:
The difference of present embodiment and embodiment 1 is, with Tianchi, Tibet-160
#Petroleum bitumen is as unknown asphalt sample.Obtain infrared spectrogram shown in figure 12.Analysis result conforms to actual conditions.
To sum up, the infrared test result of various petroleum bitumen shows that there are significantly same absorbent peak in the different brands that country variant is produced, the petroleum bitumen of label, and the infrared light wave number at these public infrared signature absorption peak places is respectively 2921～2852cm
-1, 1602cm
-1, 1456cm
-1, 1376cm
-1, 650～910cm
-1The method of utilizing the infrared spectrogram mensuration petroleum bitumen of petroleum bitumen of the present invention; The mensuration theoretical foundation is abundant; The characteristic that has accurately reflected petroleum bitumen infrared spectrum curve, and through the accurate test of asphalt sample having been obtained the infrared spectrum curve of asphalt sample, verify through test of many times; That this method has is simple to operate, measure result's advantage accurately; Overcome the defective of the analysis difficulty that causes owing to the pitch composition is complicated that exists in the prior art, enriched and utilized theory and the time study achievement of infrared spectrum, can be widely used in the pitch analysis in the road construction the pitch qualitative analysis.
Claims (3)
1. a method of utilizing the infrared spectrogram mensuration petroleum bitumen of petroleum bitumen is characterized in that, specifically comprises the steps:
Step 1, the unknown asphalt sample that will choose are mixed with 5% cold primer-oil;
The infrared spectrum of the cold primer-oil of step 2, determination step one obtains its infrared spectrogram;
Step 3, interpretation of result;
The curve of the infrared spectrogram of analysis cold primer-oil is at infrared spectrum 4000～400cm
-1Characteristic in the wave-number range; This characteristic is compared with the curvilinear characteristic of known petroleum bitumen infrared spectrogram; If both are in full accord; Then judge the unknown asphalt sample to be petroleum bitumen, otherwise be not petroleum bitumen that the curvilinear characteristic of said known petroleum bitumen infrared spectrogram is according to infrared spectrum 4000～400cm
-1Be described below from high to low in the wave-number range:
1) 3500cm
-1More than: free state-OH stretching vibration generation absorption peak;
2) 2920cm
-1Near, a stronger absorption peak appears, and the peak type is sharp-pointed, is methylene-CH
2-antisymmetric stretching vibration;
3) 2850cm
-1Near, a stronger absorption peak appears, and the peak type is sharp-pointed, is methylene-CH
2-symmetrical stretching vibration;
4) 1600cm
-1Near the more weak absorption peak of appearance reacts the vibration for phenyl ring skeleton structure and C=O key;
5) 1460cm
-1Near the medium absorption peak of intensity appears, the peak type is sharp-pointed, shows as methyl C-CH
3In stretching vibration and-CH in the C-H face
2The result of stretching vibration in the-middle C-H face;
6) 1380cm
-1Near appearance-CH
3The symmetric deformation vibration absorption peak;
7) 900～650em
-1Between occur on the phenyl ring=C-H wagging vibration absorption peak.
2. the method for utilizing the infrared spectrogram mensuration petroleum bitumen of petroleum bitumen of the present invention as claimed in claim 1 is characterized in that said step 1 specifically comprises the steps:
1) with tool plug triangular flask 120 ℃ of oven dry in following 20 minutes in baking oven of wash clean, is cooled to room temperature.
2) take by weighing the good asphalt sample 1g of fusing, be accurate to behind the radix point the 4th when taking by weighing, using CS in the tool plug triangular flask of unknown asphalt sample after oven dry
2Dissolving is mixed with concentration and is 5% cold primer-oil.
3. the method for utilizing the infrared spectrogram mensuration petroleum bitumen of petroleum bitumen of the present invention as claimed in claim 1 is characterized in that said step 2 specifically comprises the steps:
Using the digital display pipettor is that 5% cold primer-oil is filled with the KBr liquid cell of thickness as 0.1mm with mass concentration, at 4000cm
-1～500cm
-1Scan in the scope, measure its infrared spectrum, obtain the infrared spectrogram of cold primer-oil.
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| CN2011103898145A CN102435579A (en) | 2011-11-30 | 2011-11-30 | Method for determining petroleum asphalt by infrared spectrogram of petroleum asphalt |
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|---|---|---|---|
| CN2011103898145A CN102435579A (en) | 2011-11-30 | 2011-11-30 | Method for determining petroleum asphalt by infrared spectrogram of petroleum asphalt |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103257119A (en) * | 2013-05-03 | 2013-08-21 | 浙江大学 | Method for identifying matrix asphalt quality through infrared spectroscopy technology |
| CN104198429A (en) * | 2014-09-12 | 2014-12-10 | 广西大学 | Method for analysis and differentiation of asphalt by combining infrared chromatography with gel permeation chromatography |
| CN105758817A (en) * | 2016-03-07 | 2016-07-13 | 河南城建学院 | Bitumen-based material infrared spectroscopic analysis sample preparation method based on the principle of surface tension |
| CN106908406A (en) * | 2017-03-13 | 2017-06-30 | 武汉理工大学 | A kind of gradually extracting analysis method of bituminous paving milling material aged asphalt |
| CN108344710A (en) * | 2017-12-19 | 2018-07-31 | 中设设计集团股份有限公司 | A kind of pitch test for identification method |
| CN108398398A (en) * | 2018-02-12 | 2018-08-14 | 山西省交通科学研究院 | The method for identifying asphalt quality using decaying In situ ATR-FTIR standard spectrogram |
| CN108593582A (en) * | 2018-04-12 | 2018-09-28 | 山东建筑大学 | A kind of method that infrared spectrum quickly judges pitch oil sources |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103257119A (en) * | 2013-05-03 | 2013-08-21 | 浙江大学 | Method for identifying matrix asphalt quality through infrared spectroscopy technology |
| CN104198429A (en) * | 2014-09-12 | 2014-12-10 | 广西大学 | Method for analysis and differentiation of asphalt by combining infrared chromatography with gel permeation chromatography |
| CN105758817A (en) * | 2016-03-07 | 2016-07-13 | 河南城建学院 | Bitumen-based material infrared spectroscopic analysis sample preparation method based on the principle of surface tension |
| CN106908406A (en) * | 2017-03-13 | 2017-06-30 | 武汉理工大学 | A kind of gradually extracting analysis method of bituminous paving milling material aged asphalt |
| CN108344710A (en) * | 2017-12-19 | 2018-07-31 | 中设设计集团股份有限公司 | A kind of pitch test for identification method |
| CN108398398A (en) * | 2018-02-12 | 2018-08-14 | 山西省交通科学研究院 | The method for identifying asphalt quality using decaying In situ ATR-FTIR standard spectrogram |
| CN108593582A (en) * | 2018-04-12 | 2018-09-28 | 山东建筑大学 | A kind of method that infrared spectrum quickly judges pitch oil sources |
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Application publication date: 20120502 |