Abstract
We studied the reinforcement effects of foamed mixture lightweight soil by mixing short fibers reutilized waste PET bottles. The conclusions obtained from this work are as follows: When the minimum flow value is 160mm, the additive rate of short fibers is affected by the diameter and length of the short fibers, as well as by the design unconfined compressive strength. We, therefore, propose an empirical formula of the additive rate in which these three elements are used as variables. On the other hand, it has been confirmed that the unconfined compressive strength, modulus of deformation and residual strength highly depend on the index value, sand cement ratio and the design unconfined compressive strength. We also suggest an empirical formula of the unconfined compressive strength that has above-mentioned indexes as variables.
