Analysis of Composition; Topography of Volcanic Materials Erupted from Mount Sinabung, Karo Regency, Indonesia

Sinuhaji, Perdinan; Sembiring, Timbangen; Maghfirah, Awan; Piliang, Averroes Fazlurrahman; Nababan, Sahat M

doi:10.1088/1742-6596/1116/3/032035

Cited by 2 publications

(2 citation statements)

References 8 publications

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“…There are three types of eruptions, i.e., Plinian, Vulcanian/Sub-Plinian, and Vulcanian/Strombolian or Surtseyan eruptions in the hazardous area of volcanic ash dispersion scheme as mentioned in Self and Walker (1994). Sinabung is included in the Strombolian category (Sinuhaji et al, 2018). This scheme categorizes that the Strombolian eruption has an eruptive peak of about 26,000 to 33,000 ft, an average increase in the column eruption of 15-35 ft/s, a low-medium ash concentration, fewer small particles, and a low potential for endangering the flight path (Self & Walker, 1994).…”

Section: Resultsmentioning

confidence: 99%

Simulation Of The Volcanic Ash Dispersion During The June 2019 Sinabung Eruption

Virgianto¹,

Nasution

2021

Jambura Geosci. Rev.

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The eruption of Sinabung on June 9, 2019, was categorized as a red code in the warning report for flights. Volcanic ash from volcanic eruptions is a serious threat in the world of aviation with the most dangerous ash particles are 6-10 μm and 37 μm in diameter. To enrich our understanding and modeling performances of the volcanic ash dispersion for the Sinabung eruption case, it is necessary to simulate the dispersion of volcanic ash in those particular sizes to see its distribution which can impact flight routes. The method used was the analysis of the direction and dispersion of the particular volcanic ash using Weather Research Forecast-Chemistry (WRF-Chem) and compared it with the volcanic ash warning information on flight routes issued by Volcanic Ash Advisory Centers (VAAC)-Darwin. In general, WRF-Chem can simulate the distribution of volcanic ash from the eruption of Sinabung at the two-particle sizes at different heights, and found the difference in the distribution direction of the two groups of the particle sizes. Comparison results with warning information from VAAC-Darwin and previous study, WRF-Chem simulation shows a good concordance in the dispersion direction.

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Section: Resultsmentioning

confidence: 99%

Simulation Of The Volcanic Ash Dispersion During The June 2019 Sinabung Eruption

Virgianto¹,

Nasution

2021

Jambura Geosci. Rev.

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“…The crystalline phase analysis agrees with the XRF result representing aluminosilicate. Another researcher made a similar analysis [38,39]. Its diffractogram changed when several activators activated the original Sinabung volcanic ash to form geopolymer mortar.…”

Section: Xrd Analysismentioning

confidence: 99%

Synthesis of Volcanic Ash-based Geopolymer Mortar Designed by the Taguchi Method

Karolina

Tarigan²,

Johari³

et al. 2022

Civ Eng J

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This study focuses on the geopolymer synthesized from Mount Sinabung’s volcanic ash. The compressive strength of the geopolymer was determined by optimizing five factors using the Taguchi method’s L16 array. The five factors included: volcanic ash wt.%, Sodium silicate (Na2SiO3) wt.%, Sodium hydroxide (NaOH) concentration (mole), Na2SiO3/NaOH wt.% and water/binder (w/b) wt.%. A total of 16 mixtures were prepared per the L16 array and evaluated on five levels to obtain the optimum mixture. The main findings of this study revealed that A2B1C2D3E4 produced the highest compressive strength of 79.625 MPa after three days of curing time, while A4B2C3D1E4 produced the lowest compressive strength of 41.93 MPa. The signal-to-noise (S/N) ratio analysis from the Taguchi method shows that the factor of Na2SiO3 has a greater impact on compressive strength. The X-ray diffraction (XRD) result for the geopolymer mortar revealed the formation of aluminosilicate type (N-A-S-H) and calcium silicate (C-S-H) gels, whereas the Scanning Electron Microscopy (SEM) result exhibited numerous pores and a denser structure. These characterization results demonstrated that the polymerization of volcanic ash mortar from Sinabung successfully conserves natural resources. Doi: 10.28991/CEJ-2022-08-11-016 Full Text: PDF

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Analysis of Composition; Topography of Volcanic Materials Erupted from Mount Sinabung, Karo Regency, Indonesia

Cited by 2 publications

References 8 publications

Simulation Of The Volcanic Ash Dispersion During The June 2019 Sinabung Eruption

Simulation Of The Volcanic Ash Dispersion During The June 2019 Sinabung Eruption

Synthesis of Volcanic Ash-based Geopolymer Mortar Designed by the Taguchi Method

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