MATEC Web Conf.
Volume 181, 2018The 1st International Symposium on Transportation Studies for Developing Countries (ISTSDC 2017)
|Number of page(s)||9|
|Section||Transportation Geotechnics and Materials for Sustainable Infrastructure|
|Published online||30 July 2018|
Impact of compaction test on mineral texture breakage in Tanjung Bunga Beach, Makassar
Hasanuddin University, Department of Geology Engineering, 90245 Makassar, Indonesia
2 Hasanuddin University, Department of Geophysics, 90245 Makassar, Indonesia
3 Hasanuddin University, Department of Civil Engineering Department, 90245 Makassar, Indonesia
Corresponding author : firstname.lastname@example.org
Rate of mineral deterioration in Tanjung Bunga Beach, Makassar city sediment, as a coastal city area that temporarily evolved with infrastructure development, through a Compaction test has found damage mineral from cracks, split and shatter. The aim of this research is to classify the compaction test from mineral as result texture breakage from compression test. Tanjung Bunga beach sediments based on grain size was classified from fine sand, medium sand and coarse sand. Petrographic analysis of 15 samples of in three drilling sites with 5 meters depth, found quartz mineral composition from 20 – 25%, hornblende bertween 5 – 20%, pyroxene 5 – 15%, pagioclast 5 – 15%, orthoclast 5 – 15%, biotite 10 – 20%, and opaque minerals 10 – 25%. Value of Compaction Test laboratory Fine Sand has 4 - 14.4 Div, Medium Sand has 6.7 - 20 Div, and Coarse Sand has 3.2 - 24 Div. Petrographic analysis after Mineral Compaction Test on fine sand was cracked up to 2 – 20%, split 2 – 12%, and shattered 2 – 10%, medium sand was cracked mineral up to 2 – 15%, split up to 1 – 13%, and shattered up to 1 – 5%, and coarse sand up to 1 – 10% cracked minerals, split up to 2 – 15%, and shattered up to 2 – 7%. High percentage of crack minerals were found in fine sand with low Compaction Test values and coarse sand with low crack mineral and high Compression Strength values. More cracked mineral was found in Quartz and no opaque minerals were shatter. Mineral pyroxene is founded as most shatter shape and orthoclase mineral with the most split shape.
© The Authors, published by EDP Sciences, 2018
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