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All Journal MEDIA KOMUNIKASI TEKNIK SIPIL Semesta Teknika Civil Engineering Dimension Prosiding Seminar Nasional Program Pengabdian Masyarakat
Agus Setyo Muntohar
Universitas Muhammadiyah Yogyakarta
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Engineering Medicine & Pharmacology Social Sciences

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Uses Of Lime -Rice Husk Ash And Plastic Fibers As Mixtures-Material In High-Plasticity Clayey Subgrade: A Preliminary Study Ario Muhammad; Agus Setyo Muntohar
Semesta Teknika Vol 10, No 2 (2007): NOVEMBER 2007
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/st.v10i2.841

Abstract

Silica produced from rice husk ashes have investigated successfully as a pozzolanic material in soil stabilization. However, rice husk ash cannot be used solely since the materials lack in calcium element. As a result, rice husk ash shall be mixed with other cementitious materials such as lime and cement to have a solid chemical reaction in stabilization process. The main objective of this study focused on bearing capacity of the stabilized clayey subgrade with lime-rice husk ash and fibers. The main laboratory test shall be compaction and CBR tests. The investigation results revealed that the inclusion of lime-rice husk ash-fiber into the soil decreased MDD and OMC. On the other hand, stabilization and reinforcement with lime-rice husk ash and fibers waste improved significantly the CBR values 
INDEK PEMAHAMAN HAK-HAK KONSTITUSIONAL WARGA NEGARA DI KAWASAN RISIKO BENCANA GUNUNG MERAPI DI KABUPATEN SLEMAN, D.I. YOGYAKARTA Iwan Satriawan; Agus Setyo Muntohar; Sunarno Ibrahim
Prosiding Seminar Nasional Program Pengabdian Masyarakat 2020: 7. Edukasi Penyelesaian Pertikaian di Masyarakat (Litigasi)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (866.411 KB) | DOI: 10.18196/ppm.37.269

Abstract

Tulisan ini mengkaji pengaturan hak-hak konstitusional warga negara di kawasan risiko bencana dan mengevaluasi tingkat pemahaman warga negara terhadap hak-hak konstitusionalnya dalam kondisi bencana dengan mengambil sampel kawasan rawan bencana Gunung Merapi, Yogyakarta. Kajian ini menggunakan metode studi kepustakaan dan penelitian lapangan dengan mengajukan daftar pertanyaan dalam bentuk kuesioner kepada responden. Hasil kajian menunjukkan bahwa pengaturan hak-hak konstitusional warga negara di kawasan rentan bencana sudah diatur dalam UUD 1945 dan berbagai peraturan perundang-undangan yang ada di mana pemerintah pusat maupun daerah memiliki kewajiban untuk memenuhi hak-hak dasar warga negara dalam upaya penanggulangan pasca bencana. Namun demikian, karena ketidakpahaman warga negara yang terdampak bencana terkait hak-hak konstitusionalnya, tidak jarang pemerintah pusat maupun daerah baik dengan sengaja ataupun tidak sengaja lalai dalam memenuhi hak-hak konstitusional warga negara dalam penanggulangan pasca bencana tersebut. Oleh karena itu, diperlukan program peningkatan pemahaman hak-hak konstitusional warga negara di kawasan rawan bencana yang lebih masif agar warga negara terkait memahami hak-hak konstitusionalitasnya sebagai korban bencana alam. Di samping itu, ke depan diperlukan juga pelatihan advokasi kebijakan bagi warga negara di kawasan risiko bencana agar warga terkait memiliki kemampuan memperjuangkan hak-hak konstitusionalnya sebagai warga negara yang hidup di daerah rentan bencana.
Evaluasi Pemadatan Tanah pada Proyek Pembangunan Gedung Willis Diana; Edi Hartono; Agus Setyo Muntohar; Kartika Wulandary
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 28, Nomor 1, JULI 2022
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (604.443 KB) | DOI: 10.14710/mkts.v28i1.32720

Abstract

Soil compaction is one of the robust methods to improve the strength and compressibility of earthwork since the method is more efficient and practical. However, the compaction work must be evaluated to meet the maximum dry density (MDD) required from the standard laboratory compaction test. The common method used for the evaluation of field density is the sand-cone test. The main objective of this study was to investigate the relative compaction of the borrow-fill at the building construction using the sand-cone test. The test procedure followed the ASTM D1556/D1556M-15e1 and ASTM D698-12e2 for sand-cone test and Proctor standard compaction test. Statistical analysis was performed to evaluate the density and moisture obtained from the field test at Dorm and Research and Innovation Center (RIC) project construction. The probability (p) of the compaction work exceeded the 0,9 MDD or Rc=90% was calculated p=13% and p=18%. The results corresponded to average relative compaction (Rc) of 80% and 82% at the Dorm and RIC project, respectively, with the deviation standard of 8.69 dan 8.81.
Hydromechanics – Slope Monitoring in Rainy Season Agus Setyo Muntohar; Ani Hairani; Muhammad Fikri Permana; Farid Nur Bahti
Civil Engineering Dimension Vol. 25 No. 2 (2023): SEPTEMBER 2023
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/ced.25.2.135-142

Abstract

Rainfall and soil response are necessary to be monitored to have slope characteristics in detecting landslide occurrence. Even though much research has been carried out worldwide for rainfall monitoring, less research has been conducted in Indonesia for slope monitoring. Therefore, this research was conducted to observe the suction, soil moisture content, and rainfall in a silty sand slope. An automatic rain gauge was set on the ground to measure precipitation. Tensiometer and soil moisture content sensors were installed at depths of 0.5 m; 1 m; and 1.5 m from the slope surface. The monitoring was conducted during the peak rainy season from December 2022 to January 2023. The rainfall amount is about 436.6 mm, and the 6 hours of rainfall events contribute a relatively sizeable rainfall amount (about 31%) to the total. The safety factor of the slope is estimated to decrease by 39%-40% due to the rainfall.
Co-Authors Ani Hairani Ario Muhammad Edi Hartono Farid Nur Bahti Iwan Satriawan Kartika Wulandary Muhammad Fikri Permana Sunarno Ibrahim Willis Diana