Abstract
Research area is transport construction in cold regions in compliance with geoecology. The goal of the article is to develop a new binder for the simultaneous performance of two functions—construction and technical, associated with soil reinforcement, and detoxification of heavy metal ions (HMI). Silica sol was chosen as such binder. The research methods are chemical (assessment of the silica sol detoxifying ability), physical (determination of the required concentration of silica dioxide), and physicomechanical (strength tests of samples). It is traced that sandy soil reinforcement is provided by 30% silica sol with detoxification functions. The author proposes transport construction technology in which the use of the new binder allows to achieve higher strength indicators of reinforced structures, as well as to ensure the implementation of the geoecological function.
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