INFLUENCE OF FINE ADDITIVES AND SURFACTANTS ON THE STRENGTH AND PERMEABILITY DEGREE OF CONCRETE

Keywords: concrete, nanotitanium, anatase titanium, surfactants, compressive strength, permeability, thermal properties

Abstract

The results of studies to determine the effect of titanium dioxide nanoparticles (nanoTiO2), finely dispersed anatase crystalline titanium dioxide (anatazTiO2) and surface-active substances (surfactants) on the compressive strength, degree of permeability and thermal stability of concrete samples are presented. Adding particles of nanotitanium, anatase titanium and surfactants up to 2 % to cement accelerates the hydration process and increases the strength of concrete, and also has a strong effect on its microstructure.

As a result of the studies, it is experimentally proved that the compressive strength of concrete increases with the addition of titanium dioxide (nanoTiO2) nanoparticles by 23.2 %, finely dispersed anatase crystalline titanium dioxide (anatazTiO2) by 21.7 % to 5 % concentration by weight.

In addition, the introduction of these additives reduces the permeability of concrete. This is due to a decrease in the absorption of concrete by water with the addition of nanotitanium and anatase titanium. The introduction of additives from 1 % to 5 % by weight in concrete reduces the depth of chloride penetration by 10–15 times, compared with the control.

The use of temperature-programmed desorption mass spectrometry (TPD-MS) method has shown that an increase in the percentage of TiO2 nanoparticles to 5 % in concrete mixtures correlates with an increase in microporosity and dispersion level of these mixtures, which causes a shift in the peaks of intense gas evolution from the samples when heated to the side low temperatures (for example, carbon dioxide CO2).

The resulting concrete samples are planned to be used for the manufacture of floors in livestock buildings. The injected additives are selected because they are not toxic substances and, in contact with the biological environment of livestock buildings (urine, feces), will not react with them

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Author Biographies

Oksana Shkromada, Sumy National Agrarian University

Department of Therapy, Pharmacology, Clinical Diagnostics and Chemistry

Andriy Paliy, Kharkiv Petro Vasylenko National Technical University of Agriculture

Department of Technical Systems and Animal Husbandry Technologies

Oksana Yurchenko, Sumy National Agrarian University

Department of Construction Production

Nadiia Khobot, Sumy National Agrarian University

Department of Architecture and Engineering Studies

Alina Pikhtirova, Sumy State University

Department of Public Health

Ivan Vysochin, Sumy National Agrarian University

Department of Architecture and Engineering Studies

Ganna Fedorenko, Kharkiv National University of Civil Engineering and Architecture

Department of Automation of Production Processes

Anatoliy Paliy, National Scientific Center «Institute of Experimental and Clinical Veterinary Medicine»

Laboratory of Veterinary Sanitation and Parasitology

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Published
2020-03-31
How to Cite
Shkromada, O., Paliy, A., Yurchenko, O., Khobot, N., Pikhtirova, A., Vysochin, I., Fedorenko, G., & Paliy, A. (2020). INFLUENCE OF FINE ADDITIVES AND SURFACTANTS ON THE STRENGTH AND PERMEABILITY DEGREE OF CONCRETE. EUREKA: Physics and Engineering, (2), 19-29. https://doi.org/10.21303/2461-4262.2020.001178
Section
Chemical Engineering

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