Forecasting Strength Cement Composites with Graphene Oxide by Finite Element Method

Possibility of connection between molecular and structural mechanics of cement composites based on brand of Portland cement PC 500 D0 Н of cement plant JSC “Yakutcement” (С₃А = 6,98%, normal consistency of a cement paste = 26,25%) and graphene oxide suspension prepared in accordance with the Ammosov North-Eastern Federal University (NEFU) “Graphene technologies” laboratory production procedures is investigated. For developing a forecasting technique theory, a scheme for averaging the interatomic bonds properties to obtain the stress-strain characteristics of a cement with graphene oxide sheets with further homogenization and calculation of the cement composite macromodel using the finite element method was developed. To determine the convergence, Ansys 2020 R1 software and empirical results of previously conducted experiments of the NEFU Department of Industrial and Civil Engineering were used. It was found that the homogenized model has a tensile strength of 48.8 MPa, and the actual samples have a compressive strength of 58 to 62 MPa. Thus, this forecasting theory requires significant refinement and verification on empirical data. To carry out such research, it is necessary to create an interdisciplinary universal scientific group from among post-graduate students of the Chemistry, Mathematics, and Construction Materials Departments.

A.P. SCRYABIN, Master (This email address is being protected from spambots. You need JavaScript enabled to view it.),
G.D. FEDOROVA, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)

North-Eastern Federal University in Yakutsk (58, Belinskogo Street, Yakutsk, 677000, Russian Federation)

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