Compressive strength of lightweight geocomposit soil-eps stabilized with palm oil-tea fly ash

Abstract

Abstract This laboratory experiment intended to develop lightweight embankment material by using fly ash as a stabilizer agent on soft soil and the substitution of soil with expanded polystyrenes (EPS). The palm oil-tea fly ash (POTFA) derived from combustion of palm shells and tea in manufacture process. In order to analyse the performance of this geocomposite material, compressive strength test were applied to several composition and treatment on each sample. The samples were prepared with composition of binding agent for 5%,10%,15% and 20% based on dry weight of the soil, meanwhile the EPS composition are 10% and 20% based on sample’s volume. The results showed that the substitution of EPS will reduce the unit weight of geocomposite material until 30% compared to untreated soil. The compressive strength will decrease slightly with the augmentation of bonding agent content on the samples as well as the addition of EPS, however that results are still higher than normal soil.

Access to Document

Other files and links

• Link to publication in Scopus
• Open Access Version Available

Fingerprint