Efficiency Evaluation of the Use of Mineral Technogenic Substances in Geoecoprotective Technologies of Transport Construction

Abstract

Today, the evaluation of the proposed geoecoprotective technologies, including the transport facilities construction at low temperatures conditions, is imperative and timely. The purpose of the work is quality evaluation of geoecoprotective technological solutions in construction and operation of traffic arteries. The task of the work is to study the possibility of the use of the property quality method (PQ) for geoecoprotective technological solution evaluation. The objects of research are technological solutions which can reduce heavy metal ions concentration in geosystems. PQ method was used as evaluation method. The calculation results of the geoecoprotective technologies efficiency, using geosynthetic materials, gabions, and mineral geoantidotes have been presented. Mineral geoantidotes (MGa) are substances that can detoxify heavy metal ions. The geomembrane for waterproofing of railroad body and MGa in the form of crushed silicate brick were used in the first technology. The gabion construction and MGa in the form of clinker as filling were proposed in the second technology. The third technology involves the use of a drainage tray, in which MGa in the form of autoclaved foam concrete waste is used as a drainage material. The authors of the article give the values of PQ indexes for these technologies and compare them with the currently known technologies. The article materials can be used for the development of technological geoecoprotective solutions and their evaluation in transport construction of Russia and other countries including cold regions.