Conclusions
Alternating freezing and thawing has a much bigger effect on the variation in elastic, inelastic, and deformation characteristics of concrete during the test than impact. During the test for resistance to frost, the nature of variation of the dynamic Young's modulus, coefficient of internal friction, and permanent deformation is practically identical for concretes of the compositions investigated. In the case of impact, the increase in the γ and ε values is inversely proportional to the initial inelasticity of the concrete, and the relative reduction in E is approximately the same for the investigated concrete compositions.
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Literature Cited
G. I. Gorchakov, M. M. Kapkin, and B. G. Skramtaev, Raising the Frost Resistance of Concrete in the Structures of Industrial and Hydraulic Engineering Installations [in Russian], Gosstroiizdat (1965).
V. F. Dudin, S. G. Kefalidi, and Yu. A. Piskunov, “An automatic laboratory freezing rig for investigating frost resistance of concrete at 228°K,” Uchenye Zapiski Kabardino-Balkarskogo Gos. Universiteta, Seriya Tekhnicheskikh Nauk, No. 37, Nal'chik (1967).
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Additional information
Translated from Gidrotekhnicheskoe Stroitel'stvo, No. 5, pp. 25–26, May, 1970.
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Dudin, V.F., Nevskii, V.A. & Piskunov, Y.A. The effect of cyclic loads on the elasticity and inelasticity of concretes. Hydrotechnical Construction 4, 420–422 (1970). https://doi.org/10.1007/BF02376139
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DOI: https://doi.org/10.1007/BF02376139