Title: Physical and mechanical properties of modified fine-grained fibre-reinforced concretes containing carbon nanostructures

Authors: T.A. Nizina; A.S. Balykov; D.I. Korovkin; V.V. Volodin

Addresses: Department of Building Structures, Ogarev Mordovia State University, 68 Bolshevistskaya Street, Saransk, The Republic of Mordovia, 430005, Russia ' Department of Building Structures, Ogarev Mordovia State University, 68 Bolshevistskaya Street, Saransk, The Republic of Mordovia, 430005, Russia ' Department of Building Structures, Ogarev Mordovia State University, 68 Bolshevistskaya Street, Saransk, The Republic of Mordovia, 430005, Russia ' Department of Building Structures, Ogarev Mordovia State University, 68 Bolshevistskaya Street, Saransk, The Republic of Mordovia, 430005, Russia

Abstract: The results of the study on the physical and mechanical characteristics of fine-grained fibre-reinforced concretes with multifunctional modifying additives are given. The influence of modifying additives and dispersed fibres on the water demand of fibre-reinforced concrete mixtures, the density in normal humidity conditions, and the limits of flexural and compressive strength of cement composites was established. The analysis of deformation diagrams for three-point bending of modified fine-grained fibre reinforced concretes was performed. According to the results of the study, compositions characterised by increased fracture toughness and the highest values of strength properties were identified.

Keywords: fine-grained concrete; dispersed fibre; mineral additive; carbon nanostructures; water demand; density; strength; deformation diagram; fracture toughness.

DOI: 10.1504/IJNT.2019.106621

International Journal of Nanotechnology, 2019 Vol.16 No.6/7/8/9/10, pp.496 - 509

Published online: 15 Apr 2020 *

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