期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2013
卷号：2
期号：8
页码：3447
出版社：S&S Publications
摘要：Use of natural fibre in civil engineering for improving soil properties is advantageous because they arecheap, locally available, biodegradable and eco-friendly. The natural fiber reinforcement causes significantimprovement in tensile strength, shear strength, and other engineering properties of the soil. Over the last decade theuse of randomly distributed natural and synthetic fiber has recorded a tremendous increase. Keeping this in view anexperimental study was conducted on locally available (Doimukh, Itanagar, Arunachal Pradesh, India) soil reinforcedwith Jute fiber. In this study the soil samples were prepared at its maximum dry density corresponding to its optimummoisture content in the CBR mould with and without reinforcement. The percentage of Jute fiber by dry weight of soilwas taken as 0.25%, 0.5%, 0.75% and 1%. In the present investigation the lengths of fiber was taken as 30 mm, 60 mmand 90 mm and two different diameters, 1 mm and 2 mm were considered for each fiber length. The laboratory CBRvalues of soil and soil reinforced with Jute fiber were determined. The effects of lengths and diameters of fiber onCBR value of soil were also investigated. Tests result indicates that CBR value of soil increases with the increase infiber content. It was also observed that increasing the length and diameter of fiber further increases the CBR value ofreinforced soil and this increase is substantial at fiber content of 1 % for 90 mm fiber length having diameter 2 mm..Thus there is significant increase in CBR value of soil reinforced with Jute fiber and this increase in CBR value willsubstantially reduce the thickness of pavement subgrade.
