EFFECT OF JUTE TEXTILE IN VARIOUS LAYERS OF PAVEMENT

Abstract

Developmental interest all over world requires high degree of mobility. To this end, good roads which connect all part of the country and capable of taking fast and heavy vehicles even in areas of poor soil conditions are required. Weak soils required thicker pavements to carry heavy loads imposed on them. Thicker pavement is costlier, require large quantities of raw materials, create constructional problems and slow down the pace of work. This brings reinforcement method in picture. Acceptance of new methods for use requires a proper understanding of their behavior and comprises with conventional materials. Despite sporadic applications involving natural fabrics in roadways yielding encouraging results, the potential of them in such constructions seems far from being exploited in practice. The properties of jute geotextile are found to comply well with the international standards set for such application purposes. This investigation was carried out to find effect of jute in various layers of pavement. Biodegradation behavior of jute resisted by treating it with copper sulphate and it increases the life of pavement considerably. CBR test, static plate load test and triaxial test shows the placement of jute should be closer to the surface of the layer as much as possible. In the present study, it is observed that jute textile equivalences the one layer of WBM, as seen from cyclic static plate load test. Use of jute at interface offers more cohesion and angle of internal friction as compared to without jute. Number of repetition of traffic load simulates the fatigue testing which shows that the amount of deflection at surface and subgrade level gets reduced by considerable amount. Also pressure gets reduced marginally. Economic evaluation shows its effect and benefits appears in long term and it is much beneficial as compared with synthetic geotextile. Hence it can be recommended that with the stage for thrusting highway network activity, jute geotextile could well deserve an entry into this sector and earn a justified place of an essential highway commodity.