The Use of Oil-contaminated Crushed Stone Screenings in Construction Ceramics

The article deals with the problem of disposing of oil-contaminated ballast screening, resulting in the repair and replacement of railroad tracks, in particular, the use of secondary aggregates. Secondary screening of crushed stone with grain size less than 5 mm contains up to 8% oil. The study of this fraction on phase and granules metric composition and physical and mechanical properties allowed the authors to recommend it as leaner for the construction of ceramics with improved performance characteristics. This solution gives the opportunity to improve the physic-mechanical properties of ceramic bricks and also save non-renewable resources, in the form of natural gas and sand, which has a positive impact on the environment. Thus, when using screening of ballast crushed stone in building ceramics production, reducing the amount of waste exempt land under landfills, and manufactured construction materials of improved quality.