A Improving Performance of Concrete in Canal-Lining by using Pine Needle Fibres

Abstract

Water losses in canals is a very common issue and have many sources among these sources the major source is seepage, Compared to other forms of water losses, seepage accounts for 20-30% from the canal. and to reduce this water loss concrete is being used from a very long time. Even in cement-concrete conventional sections still (15-20%) has been observed. The major cause of seepage is cracks in the canals sections and performance of the canals gets affected by the increase in the rate of cracking in concrete canal-lining. The cracking rate can be controlled by improving the flexure, compressive and splitting tensile strengths of concrete. From these, splitting-tensile strength of concrete plays a vital role in controlling cracks. The ancient way of improving the concrete characteristics is using different type of fibres, the natural fibres has many benefits, like flexibility, there availability, least health hazards and their low cost etc. in this study the author aimed to explore materials for better performance of canal-lining in terms of reduced water losses by controlling its rate of cracking due to alternate wetting and drying, and due to differential settlement, etc. The purpose of this work was to examine experimental behaviours of fibres reinforced concrete using different fibres