Co-effects of Graphene Oxide and Silica Fume on the Rheological Properties of Cement Paste
نویسندگان
چکیده
Abstract Polycarboxylate superplasticizer is typically used to prepare a high-quality graphene oxide (GO) solution before mixing with cement grains. However, even if GO well dispersed in water, they tend re-agglomerate the alkaline hydration environment, thus seriously decreasing workability of fresh mixture. In this study, we propose more targeted method by synthesizing GO-coated silica fume (SF) promote utilization cement-based materials. Specifically, surface pristine SF was modified convert their zeta potential (modified SF: MSF), then (i.e., MSF@GO) prepared via electrostatic adsorption onto MSF surface. The experimental results revealed that adding 5MSF@GO hybrid (0.04% and 5% MSF, weight binder) significantly reduced yield stress plastic viscosity 51.5% 26.2%, respectively, relative 0.04% GO-modified sample. These findings indicated application an effective environmentally friendly way develop sustainable cementitious composites.
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ژورنال
عنوان ژورنال: Lecture notes in civil engineering
سال: 2023
ISSN: ['2366-2565', '2366-2557']
DOI: https://doi.org/10.1007/978-981-99-3330-3_26