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Asphalt brand identification method

An identification method and asphalt technology, which is applied in the direction of measuring devices, material analysis through optical means, instruments, etc., can solve the problems of failing to meet the requirements of sample identification, unable to obtain identification information, and unable to identify asphalt

Active Publication Date: 2018-05-25
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for asphalt sample identification, due to its unknown composition information, complex chemical composition and differences, only using single or multiple absorption peak information cannot meet the requirements of sample identification, and cannot obtain objective and accurate identification information. Accurate and rapid identification of asphalt brand, manufacturer and other information

Method used

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Embodiment 1

[0036] A kind of asphalt brand recognition method, comprises the following steps:

[0037] Step 1, Sampling: Take Zhonghai-90 (CO90), Karamay-90 (CK90), Korean Shell-90 (SO90), Korean Hyundai-90 (HD90), Shan Dongbo-90 (CB90) and Korean Ssangyong-90 (SY90) No. 90 matrix asphalt was used as the asphalt standard sample; another batch of No. 90 matrix asphalt (CKT90) from Karamay-90 was used as the asphalt test sample.

[0038] Step 2, asphalt standard sample infrared spectrum data collection: place the asphalt standard sample on the ATR crystal, use the Cary630 Fourier Transform Infrared Spectrometer of Agilent Corporation of the United States to collect its attenuated total reflection infrared spectrum, and use air as a reference to carry out the spectrum at room temperature Acquisition, Fourier transform infrared spectrometer test conditions are: test wave number range 4000 ~ 600cm -1 , resolution 4cm -1 , The number of scans is 32. 15 samples were taken from each asphalt st...

Embodiment 2

[0060] A kind of asphalt brand recognition method, comprises the following steps:

[0061] Sampling: Take Zhonghai-90 (CO90), Karamay-90 (CK90), Korean Shell-90 (SO90), Korean Hyundai-90 (HD90), Shandong Dongbo-90 (CB90) and Korean Ssangyong-90 (SY90) Penetration No. 90 base asphalt was used as the asphalt standard sample; another batch of No. 90 base asphalt (SOT90) from South Korea Shell-90 was used as the asphalt test sample.

[0062] Step 2, asphalt standard sample infrared spectrum data collection: place the asphalt standard sample on the ATR crystal, use the Cary630 Fourier Transform Infrared Spectrometer of Agilent Corporation of the United States to collect its attenuated total reflection infrared spectrum, and use air as a reference to carry out the spectrum at room temperature Acquisition, Fourier transform infrared spectrometer test conditions are: test wave number range 4000 ~ 600cm -1 , resolution 4cm -1 , The number of scans is 32. 15 samples were taken from e...

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Abstract

The invention provides an asphalt brand identification method. The method comprises the steps that on the basis of a Fourier transform attenuated total reflection infrared spectroscopy and multidimensional scaling analysis method, in combination with multiple infrared spectroscopy data preprocessing methods such as wavelength selection, background removal, base line correction, primary logarithm unit variance processing, abnormal data identification and removal, secondary logarithm processing, matrix asphalt purchased from different factories can be classified and identified, and a regressionmodel is built and can be used for identifying unknown asphalt samples to determine the brands of the unknown asphalt samples. The asphalt brand identification method is simple, rapid, accurate and effective, and can be used for detecting and evaluating the quality stability of the matrix asphalt of the same brand and can be used for on-site online asphalt detection and identification.

Description

technical field [0001] The invention relates to the field of road engineering applications, in particular to an asphalt brand identification method. Background technique [0002] Asphalt is a black high-viscosity organic polymer mixture. Due to its good thermoplasticity, water resistance and adhesion, asphalt is often used as a basic building material in road construction. As bitumen from different origins or manufacturers has different chemical compositions, it is difficult to accurately obtain the chemical composition and content information of bitumen through existing chemical analysis methods. Bitumen from different sources and with different chemical compositions will show different physical properties, such as: penetration, softening point and ductility. This difference will be reflected in the performance of the asphalt mixture, and then affect the road paving effect. [0003] At present, asphalt identification mainly uses some mechanical property measurement method...

Claims

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Application Information

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IPC IPC(8): G01N21/3563G01N21/3577
CPCG01N21/3563G01N21/3577G01N2021/3595
Inventor 王康崔林王莹王平
Owner CHANGAN UNIV
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