Unlock instant, AI-driven research and patent intelligence for your innovation.

High stability high viscosity modified asphalt and preparation method thereof

A modified asphalt, high-stability technology, applied in building components, building insulation materials, construction, etc., to achieve the effect of good dispersion, stability and high viscosity

Inactive Publication Date: 2007-07-04
SHANGHAI QUNKANG ASPHALTUM TECH CO LTD
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, modified asphalt for water-permeable pavement with good dispersion and stability has not been reported yet.

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

[0014] Take 100 kg of base asphalt with a penetration of 300, heat it to 180°C, add 8 kg of styrene-ethylene / butylene-styrene block copolymer (average molecular weight: 160,000), 12 kg of petroleum resin and polypropylene 1 kg of wax (average molecular weight 5000, softening point 130°C) was mixed with a powerful mixer at a stirring speed of 200 rpm for 6 hours to prepare modified asphalt, and the results are shown in Table 1.

[0015] Index of modified asphalt

[0016] It can be seen from the table that high-performance modified asphalt is prepared, the viscosity at 60 degrees is greater than 20,000 Pa.s, and the PG classification reaches 82-28. High-performance modified asphalt can be used for OGFC, and it can also be used for bridges. Surface pavement, stress absorbing layer and other special occasions.

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

PropertyMeasurementUnit
softening pointaaaaaaaaaa
softening pointaaaaaaaaaa
penetrationaaaaaaaaaa
Login to View More

Abstract

The invention relates to a high-dispersity high-viscosity modified asphalt which comprises the following constituents (by weight ratio): asphalt 100, styrene-polyethylene / butylene-styrene segmented copolymer 3-12 having an average molecular weight of 30-350 thousand, petroleum resin 5-30 with a softening point of 70-150 deg C, polypropene wax 1-4 having an average molecular weight of 500-15000 and a softening point of 90-160 deg, by mixing styrene-ethane / butylenes-styrene segmented copolymer and petroleum resin into the asphalt, high viscosity, good dispersity and stability can be achieved, the PG classification can reach 82-28. The obtained high-performance modified asphalt can be used for both the general water seeping pavements, and specific sites such as bridge pavement and stress absorption layer.

Description

technical field [0001] The invention relates to a high-viscosity modified asphalt for water-permeable pavement. Background technique [0002] High-viscosity asphalt refers to asphalt with a viscosity greater than 20,000 Pa.s at 60°C, which is suitable for paving traffic roads and drainage roads. High-viscosity asphalt is currently mainly prepared by adding polymers to petroleum asphalt. Adding polymers to modify petroleum asphalt can significantly improve the high and low temperature performance of asphalt, and provide high temperature anti-rutting and low temperature anti-cracking capabilities of asphalt pavement. However, due to the differences in molecular weight and viscosity between polymers and asphalt, it is difficult to disperse polymer-modified asphalt; at the same time, because most polymers are completely compatible with asphalt, and there is a density difference, resulting in the modification of asphalt systems. The storage stability at high temperature is not ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L53/02C08L57/02C08L23/12
Inventor 黄子章
Owner SHANGHAI QUNKANG ASPHALTUM TECH CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com