This paper summarizes the research work on the experimental study on the effect of natural
fibre and industrial wastes on improving the strength properties of concrete. Production of
concrete leads to the emission of greenhouse gases in greater amount sand concrete being the
most widely used construction material also raises the risk of environmental pollution and the
depletion of natural resources. On the same hand, industries produce waste by-products of
which the disposal is a serious issue in concern. Among such waste materials some can be
effectively introduced in the field of construction; of some, due to their properties which are
similar to that of the conventional material sand some due to which they can improve the
desired properties of concrete. In the experiment coir is the natural fibre added. Coirfibre is
added in varying percentages. Flyash and plastics are the waste materials used. 30% cement is
replaced with cement and 1% plastic by weight of cement is added. The compressive strength,
split tensile strength and flexural strength were determined using cube, cylinder and beam
specimen after specified ages of curing.