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dc.contributor.authorXu, Gang
dc.contributor.authorShi, Xianming
dc.date.accessioned2019-01-30T01:17:47Z
dc.date.available2019-01-30T01:17:47Z
dc.date.issued2018-12
dc.identifier.urihttp://hdl.handle.net/11122/9764
dc.description.abstractIn Phase I of this project, graphene oxide (GO)-modified pervious concrete was developed using coal fly ash as the sole binder. The primary objectives of Phase II of this project were (1) to evaluate the stormwater infiltration capacity of GO-modified fly ash pervious concrete; (2) to evaluate the durability performance of GO-modified fly ash pervious concrete using freeze/thaw and salt resistance testing methods; and (3) to use advanced analytical tools to fully characterize the GO-modified fly ash binder. Test results indicate different degrees of reduction in concentrations of possible pollutants in stormwater—copper, zinc, sulphate, chloride, ammonia, nitrate, and total phosphate. The incorporation of GO significantly improved the resistance of pervious concrete to freeze/thaw cycles and ambient-temperature salt attack. The specimens were examined using X-ray diffraction, which revealed that the mineralogy and the chemical composition of fly ash pastes differ considerably from those of cement pastes. Nuclear magnetic resonance was used to study the chemical structure and ordering of different hydrates, and provided enhanced understanding of the freeze/thaw and salt scaling resistance of fly ash pervious concrete and the role of GO.en_US
dc.language.isoenen_US
dc.subjectfly ashen_US
dc.subjectpervious concreteen_US
dc.subjectgraphene oxideen_US
dc.subjectNMRen_US
dc.subjectXRDen_US
dc.subjectstormwateren_US
dc.titleEnvironmentally Friendly Pervious Concrete for Treating Deicer-Laden Stormwater: Phase IIen_US
dc.typeTechnical Reporten_US
refterms.dateFOA2020-03-06T02:01:14Z


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