Soil Stabilization with Bledug Kuwu Mud and Phosphoric Acid on the Plasticity Index Value

DOI

10.2991/aer.k.211106.057How to use a DOI?

Keywords

Plasticity Index; Stabilization; Bledug Kuwu Mud; Phosphoric Acid; Soft Soil

Abstract

Soil condition in construction has an essential role because it can trigger a construction failure. Generally, before construction is carried out, a soil investigation process is conducted to gain the soil data in the form of parameters needed to design construction; one of them is the plasticity index (PI). In this research, soil parameters were repaired by using the stabilization method with the mixture material of Bledug Kuwu mud and phosphoric acid chemical solution. According to the test from the Public Service Agency of Mineral and Coal Technology Laboratory (TEKMIRA) in 2020, Bledug Kuwu mud has the same content as fly ash and volcanic ash. Those two materials can be used to be the mixture material of soil stabilization because it has high silica content and has the pozzolan character like cement. Meanwhile, a phosphoric acid solution has a function as a soil fastener with Bledug Kuwu mud material because its character that is easy to react with cation in soil minerals. The soil in the form of soft soil was mixed with Bledug Kuwu mud with the percentage variant of 5%, 10%, 15%, while the phosphoric acid chemical solution was 10% for all mixtures. This research is aimed to determine the optimum stabilization mixture variant in soil. The result of this research indicated that Bledug Kuwu mud waste and phosphoric acid could decrease the plasticity index. The optimum plasticity index degradation reached 73.91%, and its activity (A) was 0.26, which meant the soil had an inactive character (A < 0.75). From the result, it can be stated that the mixture of Bledug Kuwu mud waste and phosphoric acid is effective as a soil stabilization material.

Copyright

© 2021 The Authors. Published by Atlantis Press International B.V.

Open Access

This is an open access article under the CC BY-NC license.

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TY  - CONF
AU  - A B Winarno
AU  - S Syahril
PY  - 2021
DA  - 2021/11/23
TI  - Soil Stabilization with Bledug Kuwu Mud and Phosphoric Acid on the Plasticity Index Value
BT  - Proceedings of the 2nd International Seminar of Science and Applied Technology (ISSAT 2021)
PB  - Atlantis Press
SP  - 357
EP  - 361
SN  - 2352-5401
UR  - https://doi.org/10.2991/aer.k.211106.057
DO  - 10.2991/aer.k.211106.057
ID  - Winarno2021
ER  -