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Pengaruh Subtitusi Bubuk Cangkang Telur terhadap Batas-batas Konsistensi Tanah Lempung yang Distabilisasi dengan Kapur

The Effect of Substituting Eggshell Powder on the Consistency Limits of Lime-Stabilized Clay

*Willis Diana orcid scopus  -  Program Studi Teknik Sipil, Fakultas Teknik, Universitas Muhammadiyah Yogyakarta, Indonesia
Edi Hartono scopus  -  , Indonesia
Anita Widianti scopus  -  , Indonesia
Rinda Apriliani  -  , Indonesia

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This study aimed to investigate the use of eggshell powder (ESP) to replace lime in soil-lime stabilization. Calcite was found in significant quantities in the ESP. The soil consistency limits are commonly used to evaluate the workability and estimate the mechanical properties of stabilized soil. The pH test was used to determine the initial Consumption of Lime (ICL), which was 8%. Several test variations were performed to investigate the effect of ESP replacement on the consistency limits of soil-lime stabilization soil, substituting ESP for a portion or all of the lime content required for stabilization. Soil-lime stabilization decreases the liquid limit, plasticity index, and linear shrinkage of the soil. With lime stabilization, the plasticity index reduced by 60% - 55%. The more lime content was substituted with ESP The greater the plasticity index. However, when all lime content was replaced with ESP, the soil plasticity index reduced by 29% compared to untreated soil. The shrinkage limit of untreated soil was 10.43%; after stabilization with 8% eggshell powder, the shrinkage limit increased by 26% to 13.22%. The shrinkage ratio, volumetric shrinkage, and linear shrinkage, on the other hand, are not significantly reduced. Lime types (hydrated lime and quicklime) have nearly identical behavior in terms of changes in soil plasticity. The eggshell powder can be used for soil stabilization and can affect soil plasticity. However, the changes in plasticity are not as significant as those seen with lime stabilization.

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Keywords: Soil stabilization; hydrated lime; quicklime; eggshell powder; the consistency limits

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Last update: 2024-02-24 07:45:28

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