An improvement in electrical properties of asphalt concrete
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Materials such as Koch AH—70, basalt aggregate, limestone powder and graphite particles were used to prepare conductive asphalt concrete, which is a new type of multifunctional concrete. The mix proportion by weight was shown as follows. Fine aggregates (2.36–4.75 mm): fine aggregates (<2.36mm): lime-stone powder: asphalt=120∶240∶14∶30. The content of added graphite particles ranged from 0% to 20% (by the weight of asphalt concrete). A conductive asphalt concrete with a resistivity around 10–103Ω·m was obtained. Special attention was paid to the effects of graphite content, graphite physical-chemical properties, asphalt content and temperature on the resistivity. Furthermore, an attempt was made to develop an electrically conductive model for asphalt concrete.
Key wordsconductive asphalt concrete electrical properties resistivity electrically conductive model
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- 3.S A Abo. Electrical Conductivity of Concrete Containing Silica Fume.Cement and Concrete Research, 1995, 25(6): 1615–1625Google Scholar
- 6.S Wen and D D L Chung. Seebeck Effect in Carbon Fiber Reinforced Cement.Cement and Concrete Research, 1998, 23(4): 837–841Google Scholar
- 7.Wan Ying. Electric Properties of Carbon Black-Butadiene Nitrite Rubber Composites.Polymer Materials Science & Engineering, 1999, 15(5): 25–30Google Scholar
- 8.Zhen Kezheng. Properties of Silicone Rubber Composite Filled With High-structured Conductive Carbon Black.Synthesize Rubber, 2000, 23(6): 366–369.Google Scholar
- 9.Lu Chuangcheng. Study on Conductive Plastics Filled by Carbon-black.Plastics, 2000, 29(1): 32–34Google Scholar
- 10.Yao Mu. The Study on the Electrical Conductivity Model of the Composite Conductive Fiber.Northwest Institute of Textile Sci. and Tech., 2001, 15(2): 231–215Google Scholar
- 11.Xuan Zhaolong. Research on PTC Effect in Carbon/polymer Conducting Composites.Plastics, 1999, 19(10): 25–30Google Scholar
- 12.Shui Zhonghe. Study on The Electrical Properties of Carbon Fiber-cement Composite (CFCC).Journal of Wuhan University of Technology—Materials Science Edition, 1995, 10(4): 38–41Google Scholar