In geotechnical practice, there are many cases when it is necessary to improve soils. There are also many methods
to improve soils, including using natural and synthetic fibres. A simple review of soil reinforcement by using natural
and synthetic fibres is introduced in [1]. By the authors, availability, economical benefits, easy to work, rapid to
perform and feasibility of using in all weather conditions are the general advantages of short fibre composite soils.
The authors also state that strength and stiffness of the composite soil is improved by fibre reinforcement. They
concluded that the increase in strength and stiffness was reported to be a function of: fibre characteristics such as
aspect ratio, skin friction, weight fraction and modulus of elasticity; of sand characteristics such as shape, particle