Behaviour of Different Types of Sand Randomly Mixing with Various Natural Fibers

For rapid expansion in transportation sector in India, a huge amount of construction of roads are being made through different schemes. Such constructions require massive quantity of conventional good brickbats for sub-base construction. But due to scarcity of raw materials for construction of good bricks and dearness of energy to make bricks, use of alternate materials for making sub-base is becoming more obligatory. In such condition, use of natural sands is being advocated. To improve the properties of such sands, to suit subbase characteristics, some natural fibers like jute, coir or Sabai grass can be used in random mixing with these sands, with the aim to increase the strength and decrease in deformability of the laid subbase layer. This work highlights the usefulness of construction of sub-base with sand and natural fibers composite system, as alternate material of construction.