Study of impact factors and the mechanism of gypsum binder hydration process in the presence of nanomodifiers

Victor Derevianko; Natalia Kondratieva; Hanna Hryshko

doi:10.17721/fujcV6I1P92-100

Authors

Victor Derevianko Department of Technology of Construction Materials, Products and Designs, State Higher Educational Establishment “Prydniprovs’ka State Academy of Civil Engineering and Architecture”
Natalia Kondratieva Department of Chemical Engineering and Binding Materials Ukrainian State University of Chemistry and Chemical Technology
Hanna Hryshko Dnipropetrovsk State Agrarian-Economic University

DOI:

https://doi.org/10.17721/fujcV6I1P92-100

Keywords:

carbon nanotubes, calcium sulfate hemihydrate, modification, hydration, gypsum matrix

Abstract

This article represents the results of the research of nanomodification of mineral binders involving structure formation mechanisms and gypsum binder hydration process, and thus, affecting various properties. Experiments proved that during growth, crystals partly penetrate into each other and form a three-dimensional network permeating and incorporating the entire gypsum stone into a whole body, which promotes structuring of calcium sulfate matrix and improvement in gypsum compressive strength up to 30%. Chemical functionalization of the surface of carbon nanotubes promotes a reduced sedimentation effect, allows for a more uniform nanostructure dispergation throughout the modified material volume and provides chemical interaction between the substance matrix and nanotubes.

Author Biographies

Victor Derevianko, Department of Technology of Construction Materials, Products and Designs, State Higher Educational Establishment “Prydniprovs’ka State Academy of Civil Engineering and Architecture”

Dr. Sc. (Tech.)., Prof. Department of Technology of Construction Materials, Products and Designs, State Higher Educational Establishment “Prydniprovs’ka State Academy of Civil Engineering and Architecture”

Natalia Kondratieva, Department of Chemical Engineering and Binding Materials Ukrainian State University of Chemistry and Chemical Technology

Candidate of Technical Sciences, Associate Professor of the Department of Chemical Engineering and Binding Materials Ukrainian State University of Chemistry and Chemical Technology

Hanna Hryshko, Dnipropetrovsk State Agrarian-Economic University

Candidate of Technical Sciences, Associate Professor of the Department of Operation of Hydromelioration Systems and Construction Technology, Dnipropetrovsk State Agrarian-Economic University, Dnipro

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