Microstructure analysis method of asphalt and modifier thereof

A technology of microstructure and analysis method, which is applied in the direction of analyzing materials, using wave/particle radiation for material analysis, measuring devices, etc. It can solve the problems of only detecting the surface, insufficient characterization, and inability to achieve good penetration ability, Effect of Large Sample Space

Inactive Publication Date: 2019-11-15
NANJING FORESTRY UNIV
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The invention provides a method for analyzing the microstructure of asphalt and its modifier. The method studies the microstructure of modified asphalt from the perspective of studying the nanoscale structure of matrix asphalt and SBS block copolymer, thereby solving the current problems. The use of OM microstructure characteriz

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The invention provides a method for analyzing the microstructure of asphalt and modifier thereof, the specific implementation steps are as follows:

[0019] (1) Weigh a certain amount of SBS modifier and matrix asphalt respectively, heat the asphalt to 170°C, add SBS modifier, and prepare modified asphalt samples with different SBS content by high-speed shear stirring;

[0020] (2) Place the SBS powder in the special sample container of the small-angle neutron scattering tester, vibrate gently to make the SBS modifier powder evenly and fully distributed in the sample box, and ensure that the SBS modifier powder is compacted, Seal with plastic film, make the neutron small-angle scattering test sample of SBS modifier;

[0021] (3) Heat the base asphalt and SBS modified asphalt to a flow state, pour them into a quartz sample box, and clamp the asphalt sample with two parallel glass pieces to form a 1mm-thick medium and small angle scattering test sample with a flat surface...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a microstructure analysis method of asphalt and a modifier thereof, and belongs to the technical field of microstructure analysis of modified asphalt. The problem that the microstructures of asphalt and the modifier thereof cannot be comprehensively, stereoscopically and clearly analyzed by using only one characterization method at present is solved. According to the microstructure analysis method provided by the invention, neutron small-angle scattering samples of an SBS modifier, matrix asphalt and SBS modified asphalt are prepared at first, a neutron small-angle scattering test is performed on the samples to obtain initial experimental data, and the initial experimental data are processed to obtain an absolute intensity scattering curve, and then different models are fitted through the absolute intensity scattering curves of the samples to quantitatively analyze the microstructures of the SBS modifier, the matrix asphalt and the SBS modified asphalt. Throughthe analysis of the microstructures of the asphalt and the modifier thereof, the modification mechanism of the SBS modified asphalt can be better revealed, and a relationship between the microstructure of the modified asphalt and the macroscopic properties thereof can be established, so that the performance of the SBS modified asphalt, and the service level and the service life of asphalt pavements can be better improved.

Description

technical field [0001] The invention relates to a microstructure analysis method for asphalt and its modifier, and belongs to the technical field of microstructure analysis of modified asphalt. Background technique [0002] Asphalt is the main material for road construction. Compared with cement pavement, asphalt pavement has the advantages of comfortable driving, stable and low noise, and convenient maintenance. It is the first choice for highway construction in various countries. In recent years, my country's economy has achieved rapid development, urban car ownership has increased rapidly, and expressway traffic volume has increased year by year, which has brought new challenges to the use of roads at all levels, especially for the performance of asphalt pavement on high-grade highways. The requirements are becoming stricter and stricter, but asphalt pavement is prone to oil flooding in high temperature seasons and cracking in low temperature seasons, which affects the ser...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01N23/2005G01N23/202
CPCG01N23/2005G01N23/202
Inventor 李池璇许涛范素颖王宏畅
Owner NANJING FORESTRY UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap