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All Journal Fondasi: Jurnal Teknik Sipil
Rizka, Bella
Jurusan Teknik Sipil UNTIRTA
Civil Engineering, Building, Construction & Architecture Transportation

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The Effect of Fly Ash-Based Geopolymer Proportion on the Specific Gravity of Mixed Soil Fathonah, Woelandari; Kusuma, Rama Indera; Mina, Enden; Baehaki, Baehaki; Rizka, Bella
Jurnal Fondasi Vol 13, No 2 (2024)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/fondasi.v13i2.28256

Abstract

Road construction planning must consider the characteristics and strength of the soil. This study aims to determine the classification of soil and the effect of fly ash-based geopolymer as an added material on the specific gravity of soil. Specific gravity testing was carried out using a pycnometer to obtain the specific gravity of the soil. The test object used is a soil sample added with geopolymer with fly ash as raw material and an alkaline activator (Na2SiO3and NaOH). The NaOH concentration is 10 M with a solution ratio of 2.0 (Na2SiO3 to NaOH), fly ash content of 20%, and variations in S / L (fly ash to activator) levels of 1/2 and 1/2.5. Based on the research that has been done, the results show that the soil used in the study is included in the organic clay soil with a specific gravity value of 2.49. The effect of fly ash-based geopolymer in this study increases the specific gravity value, with a specific gravity of 2.60 for variation B (80% soil, 20% FA, S/L 1/2) so that the soil falls into the organic clay category and 2.69 for variation C (80% soil, 20% FA, S/L 1/2.5) so that the soil falls into the non-organic clay category.
Co-Authors Baehaki, Baehaki Fathonah, Woelandari Kusuma, Rama Indera Mina, Enden