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Abstract Lepidolite slag is a general solid waste, its main components are silicon dioxide, aluminum oxide, calcium oxide, iron trioxide, etc., and the composition is similar to cement mixtures and concrete admixtures. In this paper, a number of detections and tests have been carried out based on the requirements of national standards, and the feasibility of using it as cement mixture and admixture has been analyzed from many aspects. The results showed that the lepidolite slag is qualified in heavy metal leaching and radioactivity detection, which has potential hydraulic and pozzolanic properties. It passes stability detection, has a high activity strength index, and meets the basic requirements as a cement mixture and admixture. However, lepidolite slag has a high-water content, large composition fluctuations, and high alkali content and sulfur trioxide content. When using lepidolite, homogenization should be strengthened and the addition should be controlled to make the alkali and sulfur trioxide content in cement meet the national standard requirements
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Published: 29 April 2024
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2024, Vol. 0 
