Study of controlled leaching process of steel slag in soxhlet extractor aiming employment in pavements

This work addresses the characterization of physical, chemical and mechanical properties of steel slag in the employment as an aggregate before and after controlled leaching test in Soxhlet extractor. The material was characterized before going through the stabilization process (virgin slag) and after controlled leaching in different periods of 24, 56, 96, 120 hours.The steel slag was subjected in the laboratory to simulate the precipitation in Soxhlet equipment to evaluate its physical, chemical and mechanical properties after each period. The study of the leaching process in steel slag aimed to understand the influence of the washing process in the slag behavior.The virgin sample, without receiving stabilization process through controlled leaching, showed satisfactory results in the physical characterization when compared to conventional aggregates. After controlled leaching, the steel slag showed no significant loss of its physical properties. As for the mechanical expansion tests, there was a decrease of the expansibility potential, after leaching periods. It is concluded that the leaching process in a Soxhlet extractor is of importance in the study of the steel slag properties.


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  • Accession Number: 01761094
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Dec 9 2020 3:11PM