Rapid detection method of sbs modified asphalt modifier content

A modified asphalt and detection method technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of complex sample preparation, large equipment volume, inconvenient to carry, etc., achieve accurate measurement results, meet the measurement requirements, and cover a wide range Effect

A modified asphalt and detection method technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of complex sample preparation, large equipment volume, inconvenient to carry, etc., achieve accurate measurement results, meet the measurement requirements, and cover a wide range Effect

CN105372200BActive Publication Date: 2018-07-31内蒙古自治区交通运输科学发展研究院 +3
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  • Rapid detection method of sbs modified asphalt modifier content

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Effect test

Embodiment 1

[0039] A) the comparison SBS modified asphalt sample is composed of a calibration set and the infrared spectrum data of the contrast SBS modified asphalt sample is collected;

[0040] Among them, different qualities of SBS (the product of LG501 produced by South Korea’s LG Chemical) were added to the base asphalt (the product of Shell AH-90 produced by Shell China), and 12 samples with evenly distributed SBS content were prepared. The SBS content of the SBS modified asphalt samples were 3.0%, 3.3%, 3.6%, 3.9%, 4.0%, 4.2%, 4.5%, 4.7%, 5.0%, 5.3%, 5.7%, 6.0%. Select 10 of them as the calibration set samples (i.e., select 10 of them as the reference SBS modified asphalt samples to form the calibration set), and measure the attenuated total reflection infrared spectra of these control modified asphalt samples respectively (i.e., use the attenuated total reflection method Determination of the infrared spectrum data of these contrast SBS modified asphalt samples), wherein the corres...

Embodiment 2

[0050] A) the comparison SBS modified asphalt sample is composed of a calibration set and the infrared spectrum data of the contrast SBS modified asphalt sample is collected;

[0051] Among them, different qualities of SBS (the product of LG411 produced by South Korea’s LG Chemical) were added to the base asphalt (the product of SK AH-90 produced by South Korea’s SK) to prepare 12 samples with evenly distributed SBS content. The SBS content of the SBS modified asphalt samples were 3.0%, 3.3%, 3.6%, 3.9%, 4.0%, 4.2%, 4.5%, 4.7%, 5.0%, 5.4%, 5.7%, 6.0%. Select 10 of them as the calibration set samples (i.e., select 10 of them as the reference SBS modified asphalt samples to form the calibration set), and measure the attenuated total reflection infrared spectra of these control modified asphalt samples respectively (i.e., use the attenuated total reflection method Determination of the infrared spectrum data of these contrast SBS modified asphalt samples), wherein the correspondin...

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Abstract

The invention relates to a rapid detection method for SBS modified asphalt modifier contents. The method comprises the steps that comparison SBS modified asphalt samples are constituted into a calibration set, and infrared spectroscopy data of the comparison SBS modified asphalt samples are collected; SBS content data in the comparison SBS modified asphalt samples and the infrared spectroscopy data of the comparison SBS modified asphalt samples are subjected to regression analysis with a chemometrics method, and a multivariate calibration model of the SBS contents in the comparison SBS modified asphalt samples is built; the SBS contents in to-be-tested SBS modified asphalt samples are obtained by combining the infrared spectroscopy data of the to-be-tested SBS modified asphalt samples and the multivariate calibration model, the rapid detection method for the SBS modified asphalt modifier contents can be applied in site quality control and supervision work for SBS modified asphalt of quality supervision institutions and project construction units, and asphalt pavement construction quality control work can be effectively instructed.

Description

technical field [0001] The invention relates to the field of SBS content detection, in particular to a rapid detection method for SBS modified asphalt modifier content. Background technique [0002] SBS modified asphalt is a blend of base asphalt and polymer modifier SBS (Styrene-butadiene-styreneblock copolymer, styrene-butadiene block polymer), the content of SBS determines the road performance of SBS modified asphalt one of the important factors. The following introduces some existing related technologies, but they all have their own defects: In order to test the SBS content, Diefender proposed a method of using elastic recovery as a characterization index of SBS content, and inferring the SBS content by establishing an elastic recovery-SBS content relationship curve. However, the SBS content is not the only factor that determines the elastic recovery. Factors such as the preparation method of SBS modified asphalt, phase structure, additives and other factors have a sign...

Claims

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Application Information

Patent Timeline
31 Jul 2018
Publication
CN105372200B
IPC
G01N21/3563
CPC
G01N21/3563
Inventors
张洪伟; 魏道新