Basalt plastic properties under climatic aging conditions

Authors

  • Aleksei Nikolaievich Blaznov Institute of Chemical and Energy Technology Problems, the Siberian Branch of the Russian Academy of Sciences, Altai State Technical University named after I.I. Polzunov
  • Viktor Borisovich Markin Altai State Technical University named after I.I. Polzunov
  • Anatoliy Sergeievich Krotov Institute of Chemical and Energy Technology Problems, the Siberian Branch of the Russian Academy of Sciences
  • Viacheslav Viktorovich Firsov Institute of Chemical and Energy Technology Problems, the Siberian Branch of the Russian Academy of Sciences
  • Nikolai Valerievich Bychin Institute of Chemical and Energy Technology Problems, the Siberian Branch of the Russian Academy of Sciences
  • Zakhar Germanovich Sakoshev Institute of Chemical and Energy Technology Problems, the Siberian Branch of the Russian Academy of Sciences

Keywords:

unidirectional basalt plastics, climatic aging, mechanical properties, longitudinal bending, glass transition temperature, differential scanning calorimetry, surface photomicrography, digital processing

Abstract

The paper presents results of climatic tests of unidirectional basalt plastics after curing in GRONLAND climatic chamber at 60 ºС and 100% humidity for 1, 2, and 3 months. The mechanical properties do not change in the first month, but after the second and third months of exposure elasticity modulo of samples increases by 6-10%, ultimate strain decreases by 5-7%, strength sees almost no change. The results of thermomechanical research using differential scanning calorimetry show the gradual increase of temperature of glass transition of samples from 124.4 °С (1 month) up to 125.8 °С (2 months) and 126.4 °С (3 months). It means that the binder is additionally polymerized in the temperature and humidity conditions of the climatic chamber. After the digital processing of photomicrographs of samples' surfaces, we have established a qualitative correlation between the change in properties and the surface condition.

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Published

2021-03-26

How to Cite

Blaznov, A. N., Markin, V. B., Krotov, A. S., Firsov, V. V. ., Bychin, N. V. and Sakoshev , Z. G. . (2021) “Basalt plastic properties under climatic aging conditions”, Smart Composite in Construction, 2(1), pp. 29-39. Available at: http://comincon.ru/index.php/tor/article/view/20 (Accessed: 21June2021).

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