Properties evaluation of asphalt-based composites with graphite and mine powders

被引：69

作者：

Liu, Xiaoming ^{[1
]}

Wu, Shaopeng ^{[1
]}

Ye, Qunshan ^{[1
]}

Qiu, Han ^{[1
]}

Li, Bo ^{[1
]}

机构：

[1] Wuhan Univ Technol, Key Lab Silicate Mat Sci & Engn, Minist Educ, Wuhan 430070, Peoples R China

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2008年 / 22卷 / 03期

关键词：

asphalt-based composites; graphite; mine powder; thermal properties; electrical properties; high-temperature properties;

D O I：

10.1016/j.conbuildmat.2006.10.004

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

On account of the high specific surface area, graphite powder could transform more free asphalt to structure asphalt, so the softening temperature of asphalt-based composites (containing mineral powder) was increased from 45 degrees C to 82 degrees C upon addition of 9.0 vol.% graphite. Accompanying effects are increase of rutting resistance and decrease of the electrical resistance. Graphite powder and mineral powder together were much more effective than mineral powder alone or graphite powder alone for raising the softening temperature. Furthermore, the increase of electrical conductivity would transform the asphalt-based composites to a kind of smart material, which made strain self-monitoring of asphalt pavement become feasible through the piezoresistivity of electrically conductive asphalt-based composite. (C) 2006 Elsevier Ltd. All rights reserved.

引用

页码：121 / 126

页数：6

共 11 条

[1]

AASHTO, 1995, TP593 AASHTO

[2]

ANDERSON DA, 1993, P ASS ASPHALT PAVING, V62, P481

[3]

[Anonymous], 2000, D36 ASTM

[4]

*SUP, 1996, SUP SER SP, V2

[5] Effects of carbon black on the thermal, mechanical and electrical properties of pitch-matrix composites [J].

Wen, SH ;

Chung, DDL .

CARBON, 2004, 42 (12-13) :2393-2397

[6]

WEN SH, 2005, J MATER SCI, P3897

[7] Self-monitoring electrically conductive asphalt-based composite containing carbon fillers [J].

Wu Shao-peng ;

Liu Xiao-ming ;

Ye Qun-Shan ;

Li Ning .

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2006, 16 :S512-S516

[8] Investigation of the conductivity of asphalt concrete containing conductive fillers [J].

Wu, SP ;

Mo, LT ;

Shui, ZH ;

Chen, Z .

CARBON, 2005, 43 (07) :1358-1363

[9] Piezoresistivity of graphite modified asphalt-based composites [J].

Wu, SP ;

Mo, LT ;

Shui, ZH .

COMPOSITE MATERIALS III, 2003, 249 :391-395

[10]

Wu SP, 2002, J WUHAN UNIV TECHNOL, V17, P69

← 1 2 →