Analysis of the Influence of the Use of Palm Oil Fuel Ash (POFA) and Lime against Unconfined Compressive Strength Value on Clay

Ika Puji Hastuty, Roesyanto, Rudian Syah Nst

2018

Abstract

Unconfined Compression Test is one of the parameters needed to determine the shear strength of the soil. Unconfined Compressive Test in the laboratory is performed on original and remoulded soil samples. Soil is one of the materials used in the construction. However, not all soils can be used as construction materials. Therefore, it is necessary to improve the properties of the clay soil that meet the technical requirements and parameters. One of the efforts made is by soil stabilization method. This study will discuss the stabilization of clay soil with the addition of lime and Palm Oil Fuel Ash (POFA) as stabilizer material which is expected to improve the physical and mechanical properties which will be observed with Unconfined Compression Test (UCT) to obtain a clay soil that meets the technical requirements of use on construction field. The mixture combinations which will be used in this research are 2%-12% of POFA, 4% and 6% of lime. From the test of index properties for the original soil has 34.43% of water content; 2.65 of specific weight; 47.33% of liquid limit; and 29.88% of plastic index, this soil is included in the group of CL (clay – low) and this soil could be classified as type of soil A7-6. The CBR value for unsoaked original soil is 6.29%. Meanwhile the optimum CBR value for all mixture variations of unsoaked soil is obtained in the mixture of 4% lime and 12% POFA which is equal to 9.48% and the optimum unconfined compressive strength also obtained from the same mixture which is equal to 3,908 kg/cm2.

Paper Citation

in Harvard Style

Hastuty I., Roesyanto. and Nst R. (2018). Analysis of the Influence of the Use of Palm Oil Fuel Ash (POFA) and Lime against Unconfined Compressive Strength Value on Clay.In Proceedings of the International Conference of Science, Technology, Engineering, Environmental and Ramification Researches - Volume 1: ICOSTEERR, ISBN 978-989-758-449-7, pages 163-167. DOI: 10.5220/0010072101630167

in Bibtex Style

@conference{icosteerr18,
author={Ika Puji Hastuty and Roesyanto and Rudian Syah Nst},
title={Analysis of the Influence of the Use of Palm Oil Fuel Ash (POFA) and Lime against Unconfined Compressive Strength Value on Clay},
booktitle={Proceedings of the International Conference of Science, Technology, Engineering, Environmental and Ramification Researches - Volume 1: ICOSTEERR,},
year={2018},
pages={163-167},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010072101630167},
isbn={978-989-758-449-7},
}

in EndNote Style

TY - CONF

JO - Proceedings of the International Conference of Science, Technology, Engineering, Environmental and Ramification Researches - Volume 1: ICOSTEERR,
TI - Analysis of the Influence of the Use of Palm Oil Fuel Ash (POFA) and Lime against Unconfined Compressive Strength Value on Clay
SN - 978-989-758-449-7
AU - Hastuty I.
AU - Roesyanto.
AU - Nst R.
PY - 2018
SP - 163
EP - 167
DO - 10.5220/0010072101630167