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Electrophysical surface modification of Portland cement by dispersion mineral additives

V. BratchunDonbas National Academy of Civil Engineering and ArchitectureN. ZaychenkoDonbas National Academy of Civil Engineering and ArchitectureO. KhalyushevDonbas National Academy of Civil Engineering and ArchitectureO. SakhoshkoDonbas National Academy of Civil Engineering and Architecture
Abstract: The presence of the electric charge on the surface of cement and mineral additives affects on their electrostatic interaction. Its character and value depend on the integral charges of surfaces. It can be possible to regulate the integral charges of surfaces by high-voltage electrostatic polarization in the corona field. Adhesive interaction between the oppositely charged particles of cement and mineral additives results in formation of the combined aggregates with decline of specific surface. It is affected on rheologyc properties of cement pastes, process of structure formation and composition of hydrate products of Portland cement as well as on the indexes of cement paste durability.

Keywords: рortland cement, mineral additives, spherical particles, high-voltage polarization, active surface centers, adhesion, hydrate products.

Pages: 71-79.

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For citation:

For citation: Bratchun, V.; Zaychenko, N.; Khalyushev, O. [et al.]. Electrophysical surface modification of Portland cement by dispersion mineral additives. – Text : electronic. – In: <em>Modern Industrial and Civil Construction</em>. – 2006. – Vol. 2, N 2. – Р. 71-79. – URL: https://donnasa.ru/publish_house/journals/spgs/2006-2/03_bratchun_zajchenko_halyuschev_sahoschko.pdf (date of access: 22.12.2024). – ISSN 1993-3495.

Vol. 2, N 2 (2006)
Journal: Modern Industrial and Civil Construction
Publish house: Donbas National Academy of Civil Engineering and Architecture