CHEMICAL CHARACTERISTICS OF VOLCANIC ASH IN INDONESIA FOR SOIL STABILIZATION: MORPHOLOGY AND MINERAL CONTENT

Authors

  • Devi Oktaviana Latif
  • Ahmad Rifa’i
  • Kabul Basah Suryolelono

Keywords:

Volcanic Ash, Morphology, Mineralogy

Abstract

Indonesia region which has approximately 83 active volcanoes are a source of wealth of this
region. The last five years, active volcanoes in Indonesia, Mount Merapi, Kelud and Sinabung eruption issuing
experiencing the abundant material. A volcanic ash from the eruption of volcanic material can be used as soil
stabilization. Volcanic ash is a pozzolanic material which can be used as a soil stabilizing agent. However, it
should be done the first step characterization testing of chemical properties, mineralogy and morphology
volcanic ash from different sources. Accordingly, this paper presents results of a test chemical characteristics,
mineralogy and morphology of volcanic ash in Indonesia derived from the Mount Merapi, mount Sinabung
and mount Kelud using Scanning Electron Microscopy (SEM) and X-ray Diffraction (XRD). Based on specific
gravity test results on some volcanic ash in Indonesia, it can be classified in light material category. Merapi,
kelud and Sinabung volcanic ash has a different shape morphology. Merapi is a form of fibrous glass particles
Contain elongated vesicles. While, the texture Sinabung is a berry-like glass particles show angular blocky
forms and texture kelud are sponge like glass. The SEM-EDS test obtained Si content of the three types of
volcanic ash ranges 45-60% and elements of Al ranges 14-20%. This can be a reference for further research on
the utilization of materials of volcanic ash as a pozzolanic material in soil stabilization.

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Published

2019-10-13

How to Cite

Devi Oktaviana Latif, Ahmad Rifa’i, & Kabul Basah Suryolelono. (2019). CHEMICAL CHARACTERISTICS OF VOLCANIC ASH IN INDONESIA FOR SOIL STABILIZATION: MORPHOLOGY AND MINERAL CONTENT. GEOMATE Journal, 11(26), 2606–2610. Retrieved from https://geomatejournal.com/geomate/article/view/2646