TY - JOUR AU - Devi Oktaviana Latif, AU - Ahmad Rifa’i , AU - Kabul Basah Suryolelono, PY - 2019/10/13 Y2 - 2024/03/28 TI - CHEMICAL CHARACTERISTICS OF VOLCANIC ASH IN INDONESIA FOR SOIL STABILIZATION: MORPHOLOGY AND MINERAL CONTENT JF - GEOMATE Journal JA - INTERNATIONAL JOURNAL OF GEOMATE VL - 11 IS - 26 SE - Articles DO - UR - https://geomatejournal.com/geomate/article/view/2646 SP - 2606-2610 AB - <p>Indonesia region which has approximately 83 active volcanoes are a source of wealth of this<br>region. The last five years, active volcanoes in Indonesia, Mount Merapi, Kelud and Sinabung eruption issuing<br>experiencing the abundant material. A volcanic ash from the eruption of volcanic material can be used as soil<br>stabilization. Volcanic ash is a pozzolanic material which can be used as a soil stabilizing agent. However, it<br>should be done the first step characterization testing of chemical properties, mineralogy and morphology<br>volcanic ash from different sources. Accordingly, this paper presents results of a test chemical characteristics,<br>mineralogy and morphology of volcanic ash in Indonesia derived from the Mount Merapi, mount Sinabung<br>and mount Kelud using Scanning Electron Microscopy (SEM) and X-ray Diffraction (XRD). Based on specific<br>gravity test results on some volcanic ash in Indonesia, it can be classified in light material category. Merapi,<br>kelud and Sinabung volcanic ash has a different shape morphology. Merapi is a form of fibrous glass particles<br>Contain elongated vesicles. While, the texture Sinabung is a berry-like glass particles show angular blocky<br>forms and texture kelud are sponge like glass. The SEM-EDS test obtained Si content of the three types of<br>volcanic ash ranges 45-60% and elements of Al ranges 14-20%. This can be a reference for further research on<br>the utilization of materials of volcanic ash as a pozzolanic material in soil stabilization.<br><br></p> ER -