Electrochemically Exfoliated Graphene for High-Durability Cement Composites
نویسندگان
چکیده
The development of radically new types corrosion-resistant cement composites is nowadays compulsory in view the continuous increase concrete consumption combined with intrinsically defective nature concrete. Among various additives being employed technology, carbon nanomaterials have emerged as extremely powerful components capable remarkably enhancing nano- and microstructures well properties cement-based composites. In this study, we demonstrate that mortar incorporating electrochemically exfoliated graphene (EEG) exhibits significantly improved fluid transport properties. addition 0.05 wt % EEG to ordinary Portland results reduction initial secondary sorptivity values by 21 25%, respectively. This leads outstanding resistance EEG–cement highly corrosive environments, namely, chloride sulfate solutions. These observations, previously reported remarkable enhancement tensile strength mortars, represent a major step toward durable graphene-based
منابع مشابه
Nitroaromatic explosives detection using electrochemically exfoliated graphene
Detection of nitroaromatic explosives is of paramount importance from security point of view. Graphene sheets obtained from the electrochemical anodic exfoliation of graphite foil in different electrolytes (LiClO4 and Na2SO4) were compared and tested as electrode material for the electrochemical detection of 2,4-dinitrotoluene (DNT) and 2,4,6-trinitrotoluene (TNT) in seawater. Voltammetry analy...
متن کاملCapacitance Properties of Electrochemically Synthesised Polybithiophene-Graphene Exfoliated Composite Films
The graphene (GR) has attracted intensive interest due to its two-dimensional and unique physical properties. In the present study, the graphene sheets were synthesized by electrochemical exfoliation of graphite in sulfuric acid solution. The polybithiophene-graphene (PbTh-GR) composite films deposited onto indium tin oxide substrate (ITO/PbTh-GR) have been prepared by the incorporation of ...
متن کاملMechanical Properties and Durability of CNT Cement Composites
In the present paper, changes in mechanical properties of Portland cement-based mortars due to the addition of carbon nanotubes (CNT) and corrosion of embedded steel rebars in CNT cement pastes are reported. Bending strength, compression strength, porosity and density of mortars were determined and related to the CNT dosages. CNT cement paste specimens were exposed to carbonation and chloride a...
متن کاملElectrochemically exfoliated graphene as solution-processable, highly conductive electrodes for organic electronics.
Solution-processable thin layer graphene is an intriguing nanomaterial with tremendous potential for electronic applications. In this work, we demonstrate that electrochemical exfoliation of graphite furnishes graphene sheets of high quality. The electrochemically exfoliated graphene (EG) contains a high yield (>80%) of one- to three-layer graphene flakes with high C/O ratio of 12.3 and low she...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: ACS Applied Materials & Interfaces
سال: 2021
ISSN: ['1944-8244', '1944-8252']
DOI: https://doi.org/10.1021/acsami.1c04451