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2021 | OriginalPaper | Chapter
Geotechnical Properties of Lime and CKD Admixed Biosolids
Authors : M. T. Prathap Kumar, N. Karthik, Basavalinga, M. N. Annappa Hemanth, D. R. Nagesh Kumar
Published in: Proceedings of the Indian Geotechnical Conference 2019
Publisher: Springer Singapore
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Abstract
The amount of waste generated due to impact of urbanization has increased worldwide. To evolve sustainable use of materials, it is imperative to use treated waste materials as a good step in waste management. The objective of present investigation is to verify the improvement in geotechnical properties of biosolids which is one of the waste materials generated from wastewater treatment plant. In the present study, the biosolid was admixed with different percentage of lime. The optimum lime content (OLC) was determined based on compaction characteristics. To further improve its geotechnical properties, cement kiln dust (CKD) was added along with OLC, and various geotechnical properties were determined. It was found that the blended biosolids with 20% OLC along with 10% CKD showed significant improvement reduction in liquid limit, increase in shear strength and CBR, indicating its potential application as a subbase material in road construction.