Stabilization of soft soil using industrial waste

Pratiwi, Ade Yuniati; Prasetia, Irfan; Perina, Y A; Effendi, Rustam

doi:10.1088/1755-1315/758/1/012007

Cited by 2 publications

(1 citation statement)

References 1 publication

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“…The use of fly ash in soft soil has excellent potential, where adding fly ash as a stabilizing material has been proven to improve soft soil's physical and mechanical properties [23]- [28]. Furthermore, based on previous research, it is known that fly ash can increase the California Bearing Ratio (CBR) value of soft soil [29], [30]. Using 15% fly ash can increase the CBR value of soft soil to reach the required minimum CBR value of 6%, based on the Indonesian road pavement design manual [31].…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation on the properties of Borneo soft soil stabilized with industrial waste

Prasetia,

Hutagamissufardal,

Jimmy

et al. 2023

IJEMS

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This research aims to investigate the physical and mechanical properties of soft soil stabilized using industrial wastes, namely fly ash and rice husk ash. For this purpose, 6 (six) variations in the composition of fly ash (F), lime (L), and rice husk ash (R) were prepared. The variations in sample composition are SFLR1 (F: 15%, L: 2.5%, R: 5%), SFLR2 (F: 20%, L: 2.5%, R: 5%), SFLR3 (F: 25%, L: 2.5%, R: 5%), SFLR4 (F: 15%, L: 5%, R: 10%), SFLR5 (F: 20%, L: 5%, R: 10%) and SFLR6 (F: 25%, L: 5%, R: 10%). Meanwhile, soft soil was obtained from Banjarmasin City in South Borneo. The sample's physical properties were analyzed using the Atterberg limit test. Moreover, the California Bearing Ratio (CBR) and direct share tests are conducted to assess the sample's mechanical properties. The research results can provide confidence that fly ash, lime, and rice husk ash have the potential to improve the physical and mechanical properties of Borneo soft soil. The results of the Atterberg limit test show that industrial wastes can lower the liquid limit and increase the plastic limit; thus, the soil plasticity index decreases. As for the CBR test results, the untreated soft soil bearing ratio value of 1.4% can be increased to 2.6% after being treated with industrial wastes. In addition, using industrial wastes also decreases the swelling of the soil. Moreover, it can be seen that greater use of fly ash can improve the mechanical properties of the soft soil. However, increasing the composition of lime and rice husk ash can reduce the mechanical properties of the soft soil. Based on the experimental results, it is proposed to use SFLR3 as soil stabilization mixtures.

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Section: Introductionmentioning

confidence: 99%

Experimental investigation on the properties of Borneo soft soil stabilized with industrial waste

Prasetia,

Hutagamissufardal,

Jimmy

et al. 2023

IJEMS

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Investigation of enhancing industrial waste as a soft soil stabilizer

Pratiwi

Prasetia

Yahya

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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This study compares two methods in enhancing fly ash as a soft-soil stabilizer. The first is using fly ash with mixing proportion varies from 10%, 15%, and 20%. In the second method, 10% cement combines with fly ash mixing proportion in the first method. Based on CBR test results, the fly-ash effectively increases the soft soil capacity with a CBR maximum of 9.31% at 20% fly ash in the first method. The second method enhances more impact than the first method with a CBR maximum of 49.36% at 20% fly ash. The swelling value keeps decreasing with the increase of fly ash content, and adding cement to fly ash-soft soil mixture can further minimize the swelling value by two times compared to only fly ash as the stabilizing agent.

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Stabilization of soft soil using industrial waste

Cited by 2 publications

References 1 publication

Experimental investigation on the properties of Borneo soft soil stabilized with industrial waste

Experimental investigation on the properties of Borneo soft soil stabilized with industrial waste

Investigation of enhancing industrial waste as a soft soil stabilizer

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