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Effect of Thermal-Humidity Treatment on Structure and Properties of Cement Stone

Number of journal: №5-2017
Autors:

Berdov G.I.
Vinogradov S.A.
Bernatsky A.F.

DOI: https://doi.org/10.31659/0585-430X-2017-748-5-81-85

AbstractAbout AuthorsReferences
Results of the X-ray phase analysis, differential-thermal analysis, determination of mechanical strength and dielectric properties of cement stone samples which were hardened during 3–28 days under the normal conditions as well as after the thermal-humidity treatment at 80°C are presented. This treatment stimulates the deeper hydration of cement that manifests in reducing the intensity of C3S, C2S reflexes, increasing the Ca(OH)2 content, increasing the total loss of mass when heating. Dielectric permeability and dielectric losses are reduced (at 1.5 MHz frequency) when the hardening time increases. These changes are correlated with the increase in samples strength. Dielcometry shows the higher orderliness of the struc- ture of cement stone samples of normal hardening.
G.I. BERDOV, Doctor of Sciences (Engineering),
S.A. VINOGRADOV1, Engineer (This email address is being protected from spambots. You need JavaScript enabled to view it.);
A.F. BERNATSKY 2, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.

1 Novosibirsk State University of Architecture and Civil Engineering (113, Leningradskaya Street, Novosibirsk, 630008, Russian Federation) 
2 Novosibirsk State University of Architecture, Design and Art (38, Krasny Avenue, Novosibirsk, 630099, Russian Federation)

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For citation:  Berdov G.I., Vinogradov S.A., Bernatsky A.F. Effect of thermal-humidity treatment on structure and properties of cement stone. Stroitel’nye Materialy [Construction materi- als]. 2017. No. 5, pp. 81–85. DOI: https://doi.org/10.31659/0585-430X-2017-748-5-81-85. (In Russian).


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