As a result of the fact that stabilisation of soil may enhance its technical capabilities, both chemical and mechanical methods of stabilisation are now in use. In this particular research project, expansive soils are made more stable by incorporating Coir fibre, flyash, and CaCl2.It is to your benefit to utilise coconut coir fibre to improve soil quality since these fibres are not only inexpensive but also easily accessible in your area and kind to the environment