Performance of footing on clay stabilized trass, calcium carbide residue (CCR) and waste plastic fiber

Pujiastuti, Heni

doi:10.1063/5.0123605

The 6TH INTERNATIONAL CONFERENCE ON SCIENCE AND TECHNOLOGY (ICST21): Challenges and Opportunities for Innovation Research on Sc

2023

DOI: 10.1063/5.0123605

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Performance of footing on clay stabilized trass, calcium carbide residue (CCR) and waste plastic fiber

Heni Pujiastuti

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2024

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Cited by 2 publications

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Stabilization of clay soil of Lajut Village, Central Lombok District, with a mixture of rice husk ash and quicklime on California Bearing Ratio (CBR) value

Fitrayudha,

Pujiastuti,

Putrajati

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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Clay soil bears physical characteristics that are susceptible to changes in high shrinkage growth due to changes in water content, so the bearing capacity is strongly influenced by water content. This study determined the characteristics of clay soil from Lajut Village, Praya Tengah Subdistrict, Central Lombok Regency before and after adding rice husk ash. The stabilization materials consisted of rice husk ash and quicklime, with variations of rice husk ash + quicklime of 4%+4%, 8%+8%, and 12%+12%. Physical and mechanical properties of the clay soil were examined and the results of physical properties testing demonstrated original moisture content of 54.80% and plasticity index of 29.66%. Based on the Proctor standard test, the primary soil contained 32.93% water and 1,292 grams/cm3 dry weight volume. The variation of 8% rice husk ash and quicklime produced the optimum California Bearing Ratio (CBR) value (22.00%) and optimum CBR soaking variation (7.48%). Conclusively, rice husk ash and quicklime show the capacity to increase CBR value of clay soil.

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Stabilization of clay soil of Lajut Village, Central Lombok District, with a mixture of rice husk ash and quicklime on California Bearing Ratio (CBR) value

Fitrayudha,

Pujiastuti,

Putrajati

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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The effectiveness of fly ash and fly ash-cement mixtures as stabilizing materials for high plasticity clay

Pujiastuti,

Fitrayudha,

Adiansyah

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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The increasing activity of burning coal as fuel for Steam Power Plants (PLTU) will increase the amount of fly ash waste, urging the industry to maximize waste utilizations as, for instance, a stabilizing material for high plasticity clay. This research examined the effectiveness of clay + fly ash and clay + fly ash + cement stabilization in increasing the strength of road subgrade. The results showed that fly ash and fly ash + cement improved clay properties, demonstrated by the value of unsoaked CBR (5.78%) and soaked CBR (3.11%) of unstabilized clay. Clay + 20% fly ash yielded optimum CBR value (23,13%), and stabilizing clay subgrade on a 50-meter section using 20% fly ash at a cost of IDR 18,329,675. The mix of 40% fly ash + 15% cement yielded optimal CBR value (42.70%) at a cost of IDR 18,359,435.00. The evaluation of soil properties and cost analysis, shows that the most efficient mixture variation is 40% fly ash and 15% cement for clay stabilization.

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Performance of footing on clay stabilized trass, calcium carbide residue (CCR) and waste plastic fiber

Cited by 2 publications

References 7 publications

Stabilization of clay soil of Lajut Village, Central Lombok District, with a mixture of rice husk ash and quicklime on California Bearing Ratio (CBR) value

Stabilization of clay soil of Lajut Village, Central Lombok District, with a mixture of rice husk ash and quicklime on California Bearing Ratio (CBR) value

The effectiveness of fly ash and fly ash-cement mixtures as stabilizing materials for high plasticity clay

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