Experimental study on conductive asphalt concrete using steel slag as aggregate

Title: Experimental study on conductive asphalt concrete using steel slag as aggregate
Author(s): L. Lu, Z. Ao, Y. He, Q. Ding, S. Hu
Paper category : conference
Book title: International Conference on Microstructure Related Durability of Cementitious Composites
Editor(s): W. Sun, K. van Breugel, C. Miao, G. Ye and H. Chen
Print-ISBN: 978-2-35158-065-3
e-ISBN: 978-2-35158-084-4
Publisher: RILEM Publications
Publication year: 2008
Pages: 1043 - 1050
Total Pages: 8
Nb references: 7
Language: English

Abstract: Conductive asphalt concrete using steel slag as aggregate (CACS) is prepared according to design ideas of Stone Matrix Asphalt (SMA), and its conductivity is compared to that of graphite conductive asphalt concrete using basalt as aggregate (CACB). Effects of the addition content of graphite, chloride contamination, and its age on the electrical resistivity of CACS are investigated. Its road service properties are also discussed. Results show that the electrical resistivity of CACS is far less than that of CACB under the same condition. When the addition content of graphite is 15%, the electrical resistivity of CACS is less than 100 ohms.m, which is about one thousandth of that of CACB at the same addition content of graphite.
There is very little effect of its age and chloride contamination on the electrical resistivity of CACS. Marshall stability, freeze-thaw split strength ratio, Marshall immersion residual stability, and dynamic stability of CACS decreased a little with the increase of graphite content, but these road service properties still meet the standard requirements.

Online publication: 2009-06-09
Publication type : full_text
Public price (Euros): 0.00