Abstract
The article deals with the possibility to create the cement-based material with improved electrophysical characteristics. The material can be used in the rail sleeper production, which will improve the insulation resistance of track circuits and increase transportation reliability. Besides, various kinds of structures made of it, e.g. foundations, piles, supports, bridges and tunnels, will decrease the impact from leakage and stray currents leading to intensification of electrocorrosion processes in railway structures, and will increase life cycle of the structures. It has been experimentally established that addition of bitumen emulsion to the cement and sand grout increases electrical resistance 4 times in the test samples in comparison with a check sample without additives. Insignificant increase in the setting-up time can be eliminated with early-strength admixtures or by the concrete steam treatment traditionally applied at concrete product plants.
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