A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Electrical and mechanical properties of asphalt concrete containing conductive fibers and fillers
https://orcid.org/0000-0002-5008-7322
HighlightsWe use the combination of steel fiber and graphite as the conductive additives.Single fiber pull-out test was conducted to obtain critical steel fiber length.We proposed a design methodology of asphalt concrete that concludes both good electrical and mechanical properties.A combination of steel fiber and graphite enables to manipulate and precisely control the resistivity of asphalt concrete.
AbstractElectrically conductive asphalt concrete has the potential to satisfy multifunctional applications. Designing such asphalt concrete needs to balance the electrical and mechanical performance of asphalt concrete. The objective of this study is to design electrically conductive asphalt concrete without compromising on the mechanical properties of asphalt concrete. In order to achieve this goal, various tests have been conducted to investigate the effects of electrically conductive additives (steel fiber and graphite) on the laboratory-measured electrical and mechanical properties of asphalt concrete. The results from this study indicate that the critical embedded steel fiber length is 9.6mm to maximize the fiber’s potential to bridge across the crack from single fiber tensile test. Both steel fiber and graphite can produce conductive asphalt concrete with sufficiently low resistivity, but steel fiber is much more effective than graphite to improve the conductivity of asphalt concrete. A combination of steel fiber and graphite can precisely control the resistivity of asphalt concrete over a wider range. Besides, asphalt concrete containing an optimized amount of steel fibers has a significant improvement in Marshall Stability, rutting resistance, indirect tensile strength, and low temperature cracking resistance compared to the plain concrete. The addition of graphite could increase the permanent deformation resistance with compromised stability and low temperature performance. Asphalt concrete containing steel fibers and graphite weakens the steel fiber reinforcing and toughening effect, but still has a significant improvement in mechanical performance compared to the plain concrete.
Electrical and mechanical properties of asphalt concrete containing conductive fibers and fillers
https://orcid.org/0000-0002-5008-7322
HighlightsWe use the combination of steel fiber and graphite as the conductive additives.Single fiber pull-out test was conducted to obtain critical steel fiber length.We proposed a design methodology of asphalt concrete that concludes both good electrical and mechanical properties.A combination of steel fiber and graphite enables to manipulate and precisely control the resistivity of asphalt concrete.
AbstractElectrically conductive asphalt concrete has the potential to satisfy multifunctional applications. Designing such asphalt concrete needs to balance the electrical and mechanical performance of asphalt concrete. The objective of this study is to design electrically conductive asphalt concrete without compromising on the mechanical properties of asphalt concrete. In order to achieve this goal, various tests have been conducted to investigate the effects of electrically conductive additives (steel fiber and graphite) on the laboratory-measured electrical and mechanical properties of asphalt concrete. The results from this study indicate that the critical embedded steel fiber length is 9.6mm to maximize the fiber’s potential to bridge across the crack from single fiber tensile test. Both steel fiber and graphite can produce conductive asphalt concrete with sufficiently low resistivity, but steel fiber is much more effective than graphite to improve the conductivity of asphalt concrete. A combination of steel fiber and graphite can precisely control the resistivity of asphalt concrete over a wider range. Besides, asphalt concrete containing an optimized amount of steel fibers has a significant improvement in Marshall Stability, rutting resistance, indirect tensile strength, and low temperature cracking resistance compared to the plain concrete. The addition of graphite could increase the permanent deformation resistance with compromised stability and low temperature performance. Asphalt concrete containing steel fibers and graphite weakens the steel fiber reinforcing and toughening effect, but still has a significant improvement in mechanical performance compared to the plain concrete.
Electrical and mechanical properties of asphalt concrete containing conductive fibers and fillers
https://orcid.org/0000-0002-5008-7322
HighlightsWe use the combination of steel fiber and graphite as the conductive additives.Single fiber pull-out test was conducted to obtain critical steel fiber length.We proposed a design methodology of asphalt concrete that concludes both good electrical and mechanical properties.A combination of steel fiber and graphite enables to manipulate and precisely control the resistivity of asphalt concrete.
AbstractElectrically conductive asphalt concrete has the potential to satisfy multifunctional applications. Designing such asphalt concrete needs to balance the electrical and mechanical performance of asphalt concrete. The objective of this study is to design electrically conductive asphalt concrete without compromising on the mechanical properties of asphalt concrete. In order to achieve this goal, various tests have been conducted to investigate the effects of electrically conductive additives (steel fiber and graphite) on the laboratory-measured electrical and mechanical properties of asphalt concrete. The results from this study indicate that the critical embedded steel fiber length is 9.6mm to maximize the fiber’s potential to bridge across the crack from single fiber tensile test. Both steel fiber and graphite can produce conductive asphalt concrete with sufficiently low resistivity, but steel fiber is much more effective than graphite to improve the conductivity of asphalt concrete. A combination of steel fiber and graphite can precisely control the resistivity of asphalt concrete over a wider range. Besides, asphalt concrete containing an optimized amount of steel fibers has a significant improvement in Marshall Stability, rutting resistance, indirect tensile strength, and low temperature cracking resistance compared to the plain concrete. The addition of graphite could increase the permanent deformation resistance with compromised stability and low temperature performance. Asphalt concrete containing steel fibers and graphite weakens the steel fiber reinforcing and toughening effect, but still has a significant improvement in mechanical performance compared to the plain concrete.
Electrical and mechanical properties of asphalt concrete containing conductive fibers and fillers
Wang, Haopeng (author) / Yang, Jun (author) / Liao, Hui (author) / Chen, Xianhua (author)
Construction and Building Materials ; 122 ; 184-190
2016-06-14
7 pages
Article (Journal)
Electronic Resource
English
Electrical and mechanical properties of asphalt concrete containing conductive fibers and fillers
| British Library Online Contents | 2016
Electrical and mechanical properties of asphalt concrete containing conductive fibers and fillers
| Online Contents | 2016
Electrical conductivity of asphalt mortar containing conductive fibers and fillers
| Online Contents | 2009