Lignin-based dust suppressant and its effect on the properties of light soil

Abstract

Road dust negatively impacts the environment. For diminishing this effect, chemical suppressants are often used. Among the known suppressants, the lignin-based ones are of great scientific and practical interest, because they are low-cost, environmentally friendly and biodegradable products. In this work, a lignin-based binder, representing an interpolymer complex, in the liquid concentrated form was developed for structuring and gluing the surface of light-textured soil. The study of the mechanical properties, water and wind resistance of the created soil structure and soil glued layers as well as changing these properties as a result of the action of the climatic conditions in a climatic chamber demonstrated the effectiveness of the developed binder as a dust suppressant. The technological method of the binder application does not require any special machinery, because its water solutions at the applied concentrations are not viscous, and are easy to apply to the soil surface.