• 文献标题:   Graphene Oxide-Modified Pervious Concrete with Fly Ash as Sole Binder
  • 文献类型:   Article
  • 作  者:   XU G, SHI XM
  • 作者关键词:   clinkerfree binder, fly ash, graphene oxide, infiltration rate, mechanic strength, pervious concrete, scanning electron microscopy
  • 出版物名称:   ACI MATERIALS JOURNAL
  • ISSN:   0889-325X EI 1944-737X
  • 通讯作者地址:   Washington State Univ
  • 被引频次:   1
  • DOI:   10.14359/51701126
  • 出版年:   2018

▎ 摘  要

An environmentally friendly pervious concrete was developed by using fly ash as the sole binder modified by graphene oxide (GO). The density, void ratio, mechanical strength, Young's modulus, infiltration rate, deicer salt scaling, and degradation resistance of this pervious concrete were measured against three control groups. The test results indicated that the addition of 0.02% GO (by weight of fly ash) significantly increased compressive strength, split tensile strength, Young's modulus, deicer salt scaling resistance, and degradation resistance of the fly ash pervious concrete. Overall, this innovative fly ash pervious concrete showed a comparable performance to portland cement pervious concrete. A microscopic investigation using an electron microprobe was also conducted to obtain more insights on the effects of GO and chemical activators on the fly ash pervious concrete.