Study of Soft Soil Stabilization on Slope Using Volcanic Ash and Phosphoric Acid Concerning of Plasticity Index

DOI

10.2991/aer.k.201221.075How to use a DOI?

Keywords

Stabilization, volcanic ash, phosphoric acid, plasticity index, USCS

Abstract

The Roads and slopes are construction that’s directly related to the land. Many cases that occur in the construction are about landslides due to an overload. One way that is often used to strengthen the soil on the slope is stabilization. Volcanic ash has pozzolanic properties, large silica content and has a very fine grain size (resembling cement) so that it can be close to cavities found in the soil. Phosphoric acid is a chemical that will react with cations from soil minerals, so that they can bind to each other and form new compounds. The purpose of this research was to determine the effect of volcanic ash and phosphoric acid which was stabilized for soft soil on a slope using the USCS (Unified Soil Classification System) method. The test will be done in the form of testing the properties index of soil and also the engineering properties. In this research will be comparing the results of the Plasticity Index (PI) from native soil with soil that stabilized with volcanic ash and phosphoric acid. There are 3 types of volcanic ash sample variants to be used which are:6%, 8% and 10%. As for the mixture of phosphoric acid chemicals used by 10% for each mixture. From this research, it is proofed that volcanic ash and phosphoric acid can increase the carrying capacity and repair the characteristic of soft soil on slopes.

Copyright

© 2020, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - S Syahril
AU  - A Suyono
AU  - I R Prajudi
PY  - 2020
DA  - 2020/12/22
TI  - Study of Soft Soil Stabilization on Slope Using Volcanic Ash and Phosphoric Acid Concerning of Plasticity Index
BT  - Proceedings of the International Seminar of Science and Applied Technology (ISSAT 2020)
PB  - Atlantis Press
SP  - 456
EP  - 461
SN  - 2352-5401
UR  - https://doi.org/10.2991/aer.k.201221.075
DO  - 10.2991/aer.k.201221.075
ID  - Syahril2020
ER  -