Effect of Rice Husk Ash on the Compaction and Strength Properties of Shed Soil Treated With Carbide Lime and Sodium Hydroxide
Journal Title: IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) - Year 2018, Vol 15, Issue 2
Abstract
The locally available shedi soil in Mangalore coast has been used in this investigation. The shedi soil which is also known as lithomargic soil is found to be problematic which is reported by many investigators due to its low strength and it is susceptible to erosion when it comes in contact with water. In this investigation, an attempt has been made to overcome this problem to use Rice husk ash (RHA) which is an agro industrial waste and carbide lime (CL) which is an industrial waste to improve strength and stiffness of shedi soil. The optimum percentage of RHA is found to be 20% and carbide lime 6% for improvement in strength of shedi soil. To understand the effect of salt to the stabilized soil 1% NaOH has been added and strength tests have been carried out for curing periods varying from 0 to 90 days. It has been observed that the strength achieved is better compared to rice husk ash and carbide lime stabilized soil, this may be due to the formation of alkali silicate hydrate and alkali aluminate hydrate gel along with calcium silicate hydrate and calcium aluminium silicate hydrated gel.
Authors and Affiliations
Ramesh H. N, Manjunatha B. V
Keywords
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