Zeng Wenbo, Wu Shaopeng, Pang Ling, Sun Yihan, Chen Zongwu
State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China.
Materials (Basel). 2017 Jan 7;10(1):48. doi: 10.3390/ma10010048.
In the advanced research fields of solar cell and energy storing materials, graphene and graphene oxide (GO) are two of the most promising materials due to their high specific surface area, and excellent electrical and physical properties. However, they was seldom studied in the traditional materials because of their high cost. Nowadays, graphene and GO are much cheaper than before with the development of production technologies, which provides the possibility of using these extraordinary materials in the traditional construction industry. In this paper, GO was selected as a nano-material to modify two different asphalts. Then a thin film oven test and a pressure aging vessel test were applied to simulate the aging of GO-modified asphalts. After thermal aging, basic physical properties (softening point and penetration) were tested for the samples which were introduced at different mass ratios of GO (1% and 3%) to asphalt. In addition, rheological properties were tested to investigate how GO could influence the asphalts by dynamic shearing rheometer tests. Finally, some interesting findings and potential utilization (warm mixing and flame retardants) of GO in asphalt pavement construction were explained.
在太阳能电池和储能材料等前沿研究领域，石墨烯和氧化石墨烯（GO）因其高比表面积以及优异的电学和物理性能，成为最具潜力的两种材料。然而，由于成本高昂，它们在传统材料领域很少被研究。如今，随着生产技术的发展，石墨烯和氧化石墨烯比以前便宜得多，这为在传统建筑行业中使用这些特殊材料提供了可能性。本文选用氧化石墨烯作为纳米材料来改性两种不同的沥青。然后通过薄膜烘箱试验和压力老化容器试验来模拟氧化石墨烯改性沥青的老化过程。热老化后，对不同质量比（1%和3%）的氧化石墨烯与沥青样品进行基本物理性能（软化点和针入度）测试。此外，通过动态剪切流变仪测试来研究氧化石墨烯如何影响沥青的流变性能。最后，阐述了氧化石墨烯在沥青路面施工中的一些有趣发现及其潜在应用（温拌沥青和阻燃剂）。
