Degradation of Modified Sisal Fiber Buried in Black Cotton and litomargic Soil
Kiran S.P1, A.N Ramakrishna2

1Kiran.S.P, Asst. Professor, Department of Civil Engineering, Rajeev Institute of Technology, Hassan, (Karnataka), India.
2Dr. A.N Ramakrishna, principal and Professor, Rajeev Institute of Technology, Hassan, (Karnataka), India.

Manuscript received on 23 March 2019 | Revised Manuscript received on 30 March 2019 | Manuscript published on 30 March 2019 | PP: 736-739 | Volume-7 Issue-6, March 2019 | Retrieval Number: F2720037619/19©BEIESP
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Abstract: The globe is facing numerous environmental challenges due to increasing in atmosphere and landfills pollution. The reason behind this problem is excusive dependence on artificial and manmade material. To overcome this problem there is need of effective utilization of natural, renewable, eco friendly material like plant or leaf fibers. But all the fibers from the natural sources are not ready to use in application directly they have to be alter according to requirement, without affecting their strength characteristic. Present trend is use of natural sisal fiber in soil stabilization, But Sisal fibers undergo degradation due to attack of microorganism. results in reduction in strength characteristic of natural fibers. This study focuses on modification of sisal fiber to avoid degradation of sisal fiber and also estimation rate of degradation by soil burial method. The sisal fiber is modified by chemical and physical treatment using NaOH and general purpose resign respectively. The non degraded known weight of sisal fiber without treated, sisal fiber treated with NaOH and sisal fiber treated with NaOH and resign is buried in black cotton soil (BC) and litomargic soil (LM) soil separately for period of 360 days in ambient atmosphere. Reduction in weight of buried sisal fiber due to degradation is determined at interval of 30 days the procedure is conducted for 360 days. The test results shows that the percentage degradation of sisal fiber without treatment is more in BC soil compare to LM soil. The degradation rate will be curtained by chemical modification using NaOH up to 40 to 50% in both the soil. And degradation rate is further reduced due to combined treatment with NaOH and resign application, the reduction is up to 50-60% in both the BC and LM soils. Hence by modification of sisal fiber by combined chemical and physical treatment we can effectively mitigate the degradation of sisal fiber buried in BC and LM soil
Keywords: Black cotton soil, Litomargic soil, Sisal fiber
Scope of the Article: Radio Over Fiber