Compaction Properties of Rice Husk Ash-Lime-Bangkok Clay Mixtures

Abstract:

Bangkok clay (BC) is notorious for its poor engineering properties in Thailand and world-widely. In terms of workability, it is significant to modify its naturally weak properties. Nowadays, humans are overusing Earth’s resources and generating so much waste. In consequence, eco-friendly and cost cutting improvements are appreciated in geotechnical field. At the same time, Rice Husk Ash (RHA) is a cheap potential material for soil improvement. Lime is also known as a common material used in soil stabilization both solely and mixed with other materials. An inevitable step to every soil stabilization is to perform compaction tests that gives basic notions to treat soil. In this experimental study, compaction tests were proceeded with soil mixed with 0%, 10%, 20%, 30%, 50% of Rice Husk Ash (RHA) by dry soil mass in replacement manner and added 0%, 4%, 8%, 12% of lime. Overall, the more RHA and lime amount is mixed with soil, the higher Optimum Moisture Content (OMC) gets. This means that when replacement/stabilizers are added more and more, the soil needs more water to reach its Maximum Dry Density (MDD). Unlike OMC, MDD reduces when quantity of additives is increased.

• Periodical: Key Engineering Materials (Volume 803)
• Pages: 331-337
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.803.331
• Online since: May 2019
• Authors: Hengchhorn Phai, Amin Eisazadeh*
• Keywords: Bangkok Clay, Compaction Properties, Lime, Rice Husk Ash

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