Three-phase composite conductive anti-freezing asphalt mixture and preparation method thereof

A kind of asphalt mixture, composite conductive technology, applied in the field of composite conductive phase materials, three-phase composite conductive antifreeze asphalt mixture, can solve the problems of poor mechanical properties and fatigue resistance, unstable electrical conductivity, etc., to achieve high temperature Mechanical properties, avoidance of negative effects, effects of reducing traffic jams and traffic accidents

Inactive Publication Date: 2012-01-25
JIANGSU EASTTRANS INTELLIGENT CONTROL TECH GRP CO LTD
View PDF5 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Concrete conductive technology has been well developed and researched in cement concrete, and it has been proved that it has the potential to become the most economical and effective way to melt ice and snow on roads in the future; at the same time, the application of concrete conductive technology in asphalt concrete is in the technical demonstration and test Exploration has proved that it can be realized. The current problem is how to maximiz

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Three-phase composite conductive anti-freezing asphalt mixture and preparation method thereof
  • Three-phase composite conductive anti-freezing asphalt mixture and preparation method thereof
  • Three-phase composite conductive anti-freezing asphalt mixture and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1: Preparation of Sup-13 three-phase composite conductive asphalt mixture

[0037] 1. Material preparation:

[0038] Graphite, choose flake graphite, the density is 2.1%-2.3%g / cm 3 , particle size 0.10-0.20mm, carbon content ≥ 95%wt.

[0039] Carbon fiber, single filament diameter 0.010-0.015mm, carbon content ≥ 90%wt.

[0040] Steel slag is a multi-mineral solid solution formed by quenching the waste slag produced in converter steelmaking. The particle size range is ≤9.5mm, and FeO accounts for 24.5%wt~26%wt.

[0041] The asphalt is 70# road petroleum asphalt produced by SK Korea.

[0042] Aggregate, the stone used in this example is sieved gravel, and the aggregate is classified according to the commonly used classification requirements. The classification used in this example is: ≤3mm, 3-5mm, 5-10mm and 10-15mm .

[0043] Mineral powder, limestone processing mineral powder is required, the particle size requirement is 100% of 0.6mm sieve hole pass ...

Embodiment 2

[0055] Example 2: Preparation of SMA-13 ​​three-phase composite conductive asphalt mixture

[0056] 1. Material preparation:

[0057] Graphite, choose flake graphite, the density is 2.1%-2.3%g / cm 3 , particle size 0.10-0.20mm, carbon content ≥ 95%wt.

[0058] Carbon fiber, single filament diameter 0.010-0.015mm, carbon content ≥ 90%wt.

[0059] Steel slag is a multi-mineral solid solution formed by quenching the waste slag produced in converter steelmaking. The particle size range is ≤13.2mm.

[0060] Asphalt, Shell 70# road petroleum asphalt.

[0061] Aggregate, the stone used in this example is sieved gravel, and the aggregate is classified according to the commonly used classification requirements. The classification used in this example is: ≤3mm, 3-5mm, 5-10mm and 10-15mm .

[0062] Mineral powder, limestone processing mineral powder is required, the particle size requirement is 100% of 0.6mm sieve hole pass rate, 0.15mm sieve hole pass rate of more than 90%, 0.075mm...

Embodiment 3

[0074] Embodiment 3: Preparation of Sup-13 conventional asphalt mixture, graphite conductive asphalt mixture, graphite / carbon fiber conductive asphalt mixture

[0075] Conventional asphalt mixture, by weight percentage, consists of:

[0076] Aggregate: 91.8%

[0077] Asphalt: 5.2%

[0078] Mineral powder: 3%

[0079] Graphite conductive asphalt composite material, by weight percentage, consists of:

[0080] Graphite: 18%

[0081] Aggregate: 73.2%

[0082] Asphalt: 5.2%

[0083] Mineral powder: 3.6%

[0084] Steel slag conductive asphalt mixture, by weight percentage, consists of:

[0085] Steel slag: 40%

[0086] Aggregate: 51.8%

[0087] Asphalt: 5.2%

[0088] Mineral powder: 3%

[0089] Table 1 shows the electrical conductivity ( ).

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
Densityaaaaaaaaaa
Particle sizeaaaaaaaaaa
Monofilament diameteraaaaaaaaaa
Login to view more

Abstract

The invention discloses a three-phase composite conductive anti-freezing asphalt mixture and a preparation method thereof. The three-phase composite conductive anti-freezing asphalt mixture comprises coarse aggregates, fine aggregates, mineral powder and asphalt, and is added with a conductive material which consists of 15-20 percent of graphite, 0.2-0.5 percent of carbon fibers and 15-55 percent of steel slag by weight percent. The preparation method comprises the steps of: screening, crushing and heating the aggregates to 180 DEG C plus or minus 5 DEG C, adding the steel slag and agitating for 85-95s; adding the carbon fibers and agitating for 80-90s; adding matrix asphalt and agitating for 85-95s at 165 DEG C plus or minus 5 DEG C; then adding the filler mineral powder and the graphite and agitating for 85-95s; and finally conducting heat preservation for 1-2h in a drying oven at the temperature being 140-145 DEG C to obtain the three-phase composite conductive anti-freezing asphalt mixture. Snow melting through electric conduction is realized. At the same time, the high-temperature mechanical property and the anti-fatigue durability of the pavement are improved.

Description

technical field [0001] The invention relates to the field of composite conductive phase materials, in particular to the field of three-phase composite conductive antifreeze asphalt mixture. Background technique [0002] At present, asphalt pavement is the main pavement type of expressways in my country, and has been widely used in major roads such as airport runways, bridge deck pavement, expressways, and urban roads, and most of the various pavement projects under construction are also made of asphalt pavement. However, most areas of our country have freezing phenomena in winter, and the problem of seriously affecting road smoothness and driving safety has become increasingly prominent. Snow and ice on the roads in winter will cause the airport to be closed and shut down, the expressway to be restricted and interrupted, and even cause serious traffic accidents, causing huge losses to people's life and property safety and social economy. my country's north-south region has ...

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): C04B26/26C04B18/14
CPCY02W30/91
Inventor 王捷李华赵锡娟
Owner JIANGSU EASTTRANS INTELLIGENT CONTROL TECH GRP CO LTD
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