UV activation building sand with the dehydration factor

Andrei Pavlov; Yurii Gol&#039;tsov; Levon Mailyan; Sergey Stel&#039;makh; Evgeniy Shcherban&#039;; D. El&#039;shaeva

doi:10.29039/2308-0191-2020-8-4-37-42

UDC

CSCSTI

67.09 67.01

Russian Classification of Professions by Education

08.06.01

Russian Library and Bibliographic Classification

38 308

BISAC

TEC005000

VAK Russia

05.23.05

UV ACTIVATION BUILDING SAND WITH THE DEHYDRATION FACTOR UV activation building sand with the dehydration factor

АА Аа

Published in Construction and Architecture · Pages 37–42 · Rubric: 05.23.05 BUILDING MATERIALS AND PRODUCTS

DOI: https://doi.org/10.29039/2308-0191-2020-8-4-37-42

Received: 24.10.2020 Accepted: 03.12.2020 Published: 12.01.2021

Authors

Andrei Pavlov

Yurii Gol'tsov

Levon Mailyan

Sergey Stel'makh

ORCID

Evgeniy Shcherban'

ORCID

D. El'shaeva

ORCID

Andrei Pavlov

Academic degree: doctor of physical and mathematical sciences

Science rang: docent

Don state technical university Professor · Physics · Russian Federation · Rostov-on-Don

Yurii Gol'tsov

Don State Technical University

Levon Mailyan

Academic degree: doctor of technical sciences

Science rang: academician author.academy_titles.34 ; professor

Don state technical University Professor · Department of Construction of Unique Buildings and Structures

Sergey Stel'makh

Academic degree: candidate of technical sciences

Science rang: docent

Don State Technical University Associate Professor · Department of Engineering Geology, Bases and Foundations

ORCID

Evgeniy Shcherban'

Academic degree: candidate of technical sciences

Science rang: docent

Don State Technical University Department of Engineering Geology, Bases and Foundations

ORCID

D. El'shaeva

Don State Technical University Master student · Technological engineering and expertise in the construction industry

ORCID

ABSTRACT

The analysis of the influence of ultraviolet irradiation of building sand, which is a filler in a concrete mixture, on the dependence of the strength of concrete on the content of filler is carried out. With an increase in the content of sand due to the hydrophilicity of the surface of its particles in the mixture, the amount of free water required for the hydration of cement and the formation of cement stone decreases. Along with a decrease in the content of binder cement, this factor is an additional reason for a decrease in the strength of concrete with an increase in the content of sand. Ultraviolet irradiation leads to dehydration of the surface of the sand particles and the appearance of hydrophobic centers. As the hydrophobicity of the sand in the concrete mix increases, the content of free water available for cement hydration increases, and the strength of the cement stone increases. The change in the hydrophobicity of the surface of sand particles depending on the time of irradiation is non-monotonic. Therefore, there is an optimal UV activation mode that provides the greatest increase in concrete strength.

KEYWORDS

ultraviolet irradiation, particle surface, concrete mix, concrete strength

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GOST

Pavlov A. N., Gol'tsov Y. I., Mailyan L. R., Stel'makh S. A., Shcherban' E. M., El'shaeva D. M. UV activation building sand with the dehydration factor // Construction and Architecture. 2021. no. 4. pp. 37-42. DOI: https://doi.org/10.29039/2308-0191-2020-8-4-37-42. (Date of access 08.09.2026).

MLA

Andrei Pavlov, Gol'tsov Y. I., Mailyan L. R., Stel'makh S. A., Shcherban' E. M., El'shaeva D. M.. "UV activation building sand with the dehydration factor." Construction and Architecture 8.4 (2021): 37-42. DOI: https://doi.org/10.29039/2308-0191-2020-8-4-37-42.

APA

Pavlov A. N., Gol'tsov Y. I., Mailyan L. R., Stel'makh S. A., Shcherban' E. M., El'shaeva D. M. (2021). UV activation building sand with the dehydration factor. Construction and Architecture, 8(4), 37-42. https://doi.org/10.29039/2308-0191-2020-8-4-37-42

Chicago

Andrei Pavlov, Gol'tsov Y. I., Mailyan L. R., Stel'makh S. A., Shcherban' E. M., El'shaeva D. M.. "UV activation building sand with the dehydration factor." Construction and Architecture 8, no. 4 (2021): 37-42. https://doi.org/10.29039/2308-0191-2020-8-4-37-42.

WIKI

{{cite journal | author = Pavlov A. N., Gol'tsov Y. I., Mailyan L. R., Stel'makh S. A., Shcherban' E. M., El'shaeva D. M. | title = UV activation building sand with the dehydration factor | journal = Construction and Architecture | year = 2021 | volume = 8 | issue = 4 | pages = 37-42 | doi = 10.29039/2308-0191-2020-8-4-37-42 }}

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UV ACTIVATION BUILDING SAND WITH THE DEHYDRATION FACTOR UV activation building sand with the dehydration factor

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