Hydration and Early Age Properties of Graphene-Cement Composites

石墨烯-水泥复合材料的水合和早期性能

• 批准号: 519753-2017
• 负责人: Panesar, Daman
• 金额: $ 1.82万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=639947
• 关键词: Hydration; Early; Age; Properties; Graphene

Graphene oxide (GO) is a recently invented 2D nanoplane fiber. GO is typically produced via the chemicaloxidation and exfoliation of graphite. Some authors have also reported that reinforcing the cement matrix withGO results in the formation of calcium silicate hydrate (C-S-H) gel in the micropores, thereby enhancing theresultant composite's mechanical properties. Markedly few studies have examined the durability ofGO-cement-based composites. This proposed research program aims to examine the workability, hydrationkinetics, mechanical properties and the transport properties of graphene-cement composites using puregraphene, graphene oxide and reduced graphene oxide.Critical examination of the effect of the three types of graphene powders on the properties and performanceof cement based composites will allow for a better understanding of the type of form graphene is most suitablefor application to construction materials. In addition, the evaluation of the material chemistry, evolution of theproperties is warranted to shed light on the corresponding hydration mechanism.

氧化石墨烯（GO）是一种新型的二维纳米平面纤维。GO通常通过石墨的化学氧化和剥离产生。一些作者还报道了用GO增强水泥基质导致在微孔中形成硅酸钙水合物（C-S-H）凝胶，从而增强所得复合材料的机械性能。很少有研究考察GO-水泥基复合材料的耐久性。该研究计划旨在研究使用纯石墨烯的石墨烯-水泥复合材料的可加工性，水化动力学，机械性能和传输性能，氧化石墨烯和还原氧化石墨烯。对三种类型的石墨烯粉末对水泥基复合材料的性质和性能的影响的严格检查将允许更好地理解石墨烯最适合应用于建筑的类型材料.此外，还对材料的化学性质、性能的演变进行了评价，以揭示相应的水化机理。