Method for rapidly detecting macroscopic indexes of asphalt based on near infrared spectrum technology
A near-infrared spectroscopy and infrared spectroscopy technology is applied in the detection field of asphalt macro indicators, which can solve the problems such as the inability to guarantee the supply quality of asphalt pavement raw materials, the supervision that affects the asphalt quality, and the lag in the detection results, so that the detection results are intuitive, true and reliable. Avoid human error, easy to operate
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[0035] Example 1
[0036] The present invention is a method for quickly detecting asphalt macro indicators based on near-infrared spectroscopy technology, including the following operation steps:
[0037] Step 1. Use Fourier infrared spectrum analyzer to detect 60 SBS modified asphalt samples of the same variety and different batches at the test wave number of 600-4000cm -1 According to the absorbance within the range, the organic groups in the asphalt are qualitatively analyzed according to the position of the peak in the infrared spectrum, and the organic groups in the asphalt are quantitatively analyzed according to the absorbance. The infrared spectrum database of the asphalt samples is established. figure 1 .
[0038] Step 2. Test the penetration of 60 SBS modified asphalt samples of the same variety and different batches in step 1 according to the T0604 Asphalt Penetration Determination Method of "Test Regulations for Highway Engineering Asphalt and Asphalt Mixtures" (JTG E20-20...
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[0049] Example 2
[0050] The present invention is a method for quickly detecting asphalt macro indicators based on near-infrared spectroscopy technology, including the following operation steps:
[0051] Step 1. Use Fourier infrared spectrum analyzer to detect 60 SBS modified asphalt samples of the same variety and different batches at the test wave number of 600-4000cm -1 According to the absorbance within the range, the organic groups in the asphalt are qualitatively analyzed according to the position of the peak in the infrared spectrum, and the organic groups in the asphalt are quantitatively analyzed according to the absorbance to establish the infrared spectrum database of the asphalt sample. Figure 4 .
[0052] Step 2. In accordance with the T0605 Asphalt Ductility Determination Method of "Highway Engineering Asphalt and Asphalt Mixture Test Regulations" (JTG E20-2011), test the ductility of 60 SBS modified asphalt samples of the same variety and different batches in step 1, ...
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[0063] Example 3
[0064] The present invention is a method for quickly detecting asphalt macro indicators based on near-infrared spectroscopy technology, including the following operation steps:
[0065] Step 1. Use Fourier infrared spectrum analyzer to detect 60 SBS modified asphalt samples of the same variety and different batches at the test wave number of 600-4000cm -1 According to the absorbance within the range, the organic groups in the asphalt are qualitatively analyzed according to the position of the peak in the infrared spectrum, and the organic groups in the asphalt are quantitatively analyzed according to the absorbance to establish the infrared spectrum database of the asphalt sample. Figure 7 .
[0066] Step 2. In accordance with "Highway Engineering Asphalt and Asphalt Mixture Test Regulations" (JTG E20-2011) T0606 Asphalt Softening Point Determination Method (Ring and Ball Method). Test the softening point of 60 SBS modified asphalt samples of the same variety and ...
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