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All Journal Jurnal technoscientia Jurnal Teknologi Jurnal Ilmiah MTG Journal of Degraded and Mining Lands Management Journal of Applied Geospatial Information Jurnal Geosains dan Teknologi JURNAL TEKNOLOGI TECHNOSCIENTIA Jurnal Pengabdian kepada Masyarakat Nusantara Journal of Earth and Marine Technology (JEMT) Hexagon ARembeN Jurnal Keilmuan dan Aplikasi Teknologi Industri Jurnal Keilmuan dan Aplikasi Teknologi Industri
Nofrohu Retongga
Sekolah Tinggi Teknologi Industri Padang
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Transportation

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Journal : Jurnal technoscientia

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ANALISIS KUALITAS INTRUSI ANDESIT SEBAGAI BAHAN BANGUNAN BERDASARKAN SIFAT KETEKNIKAN DI DAERAH BEJI, KECAMATAN UNGARAN TIMUR, KABUPATEN SEMARANG, JAWA TENGAH Retongga, Nofrohu; Purnamawati, Dwi Indah; Rakhman, Arie Noor
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 13 No 2 Februari 2021
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

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Abstract

This study aims to identify the quality of andesite intrusive rocks as a building material. The research location is in the Beji area, East Ungaran District, Semarang Regency, Central Java Province. Analysis of rock quality using data from the test results of engineering and petrographic properties. The andesite studied is an intrusion into basalt. Based on the quality standard requirements for natural stone for buildings (SNI 03-0394-1989) these rocks can be mined for building materials, especially medium to heavy building foundations (1,150.040 -1,421.621 kg/cm2). The middle andesite has a higher strength than the lower andesite. The strength of the rock is supported by resistant minerals in the form of plagioclase, which dominates up to 35%. However, in the andesite body getting down, olivine tends to decrease by 5%. The weathering of these minerals is influenced by the condition of the water in the rock where the water content is 0.391 to 0.412%. In water-saturated conditions, the degree of saturation of the lower rock can reach 100%, exceeding the rock above, 87.5%. The strength of the rock at the bottom is lower, making the slope potentially easy to collapse when the mining method is started from the bottom, especially the excavation is carried out on steep vertical slopes.
Co-Authors Abdurrahman Saputra Afni Nelvi Agus Munandar Agustin, Friska Akbar, Rizky Andika Gerardus Oratmangun Andriansyah, Rian Andyono Broto Santoso Anjani, Dito Fatria Annisa Intan Yustisia Annisa Intan Yustisia Rahmalina Anwar, Ardian Aprianti, Indah Arie Noor Rakhman Atikah Zahidah Atikah Zahidah Budiman Budiman Cressendo, Hedsing Dian Hadiyansyah Diana Septiani Roos Dirgantara, Aghib Dwi Indah Purnamawati, Dwi Indah Efrat N Nainggolan Emi Prasetyawati Umar Ferdinan Akbar Firdaus Firdiansyah, Dandy Frida Rosidatul Mu’awanah Friska Agustin Friska Agustin Gilang Ramadhan, Alfal Haris, M Hayatuzzahra, Sayidatina Hedsing Cressendo Hendriono Husnul Fiqri, Ahmad Intan Yustisia Rahmalina, Annisa Irshapratama, Veri Jayatri, Adella Ulyandana Jevie Carter Eka Putra Jihad, Muhammad Jolia Salia, Popi L. Muh. Fathur Rizki Landy Pratono Lia Alfianita M. Haris Mariza Syahyuda, Nelsy Marolop P Pangaribuan Muhammad Haikal Razi Muhammad Rivai Nainggolan, Efrat N Nelsy Mariza Syahyuda Nelvi, Afni Nur Widi Astanto Agus Tri Heri Nuraga, Welly Handa Oan Marcello Lukas Watania Prasetyawati Umar, Emi Pratono, Landy Putri Wijaya, Nurhikmah Ramadhan, Ilfan Prabu Razi, Muhammad Haikal Rian Andriansyah Rio Bagas Saputa Rita Desiasni Rizal Arif Hidayattullah Rizaldi, Rizaldi Rizky Syaputra Roby Mardiyan Safitra Roby Mardiyan Safitra Rohmad Bagus Abadi Rusnoviandi Safitra, Roby Mardiyan Samsun, Samsun Saputa, Rio Bagas Sayidatina Hayatuzzahra Septian Hakim, Aqmal Suci Fitria Rahmadhani Z Suci Fitria Rahmadhani Z Suci Handayani Suci Handayani, Suci Suhernomo Syakiran, Bayu Syaputra, Rizky Ulyandana Jayatri, Adella Wawan Darmawan Welly Handa Nuraga Winnugroho Wiratman, Manfaluthy Hakim, Tiara Aninditha, Aru W. Sudoyo, Joedo Prihartono Yuda Fahrizal Zahidah, Atikah Zahratunnisa, Zahratunnisa