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Okky Hendra
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Engineering

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Pengaruh Penggunaan Abu Sekam Padi (Rice Husk Ash) Pada Beton Normal Terhadap Nilai Kuat Tekan Teguh Haris Santoso; mr Weimintoro; Okky Hendra
Engineering : Jurnal Bidang Teknik Vol 12 No 1 (2021): APRIL
Publisher : Universitas Pancasakti Tegal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24905/eng.v12i1.1814

Abstract

This study aims to determine the effect of adding rice husk ash to normal concrete on its compressive strength value. The benefit of this research is to increase knowledge about the effect of rice husk ash which can be used as an effort to reduce the use of Portland cement in concrete. This research method uses an experimental method of an experiment to determine the effect of a variable under study. The location of this research was conducted at the laboratory of PT. Nisajana Hasna Rizqy Tegal. The results of this study are the composition of the mixture of rice husk ash mixture which has the greatest compressive strength value occurs in the mixture of ASP * 10% concrete at 19.84 MPa aged 28 days, the compressive strength value does not reach the planned target of 24 MPa.
Optimasi Kadar Aspal Pertamina Terhadap Karakteristik Campuran Aspal Beton (Ac-Bc) Menggunakan Variasi Agregat Batuan Lokal Gunung (Balapulang) wiemintoro Tn; Teguh Haris; Okky Hendra
Engineering : Jurnal Bidang Teknik Vol 12 No 1 (2021): APRIL
Publisher : Universitas Pancasakti Tegal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24905/eng.v12i1.1835

Abstract

Penelitian ini bertujuan untuk mengetahui karakteristik Marshall menggunakan bahan pengikat aspal Pertamina AC 60/70 dengan menggukan Flow (kelelehan), VIM (Void In Mix), VMA (Void In Mineral Agregate) VFB (Void Filled Bitumen) dan Marshall Quotient (MQ). Penelitian ini menggunakan metode pengujian campuran beraspal panas (Hot Mix) dengan metode Marshall. Penelitian ini Terdiri dari 5 Varian dan masing-masing varian menggunakan kadar aspal yang berbeda antara lain 5%, 5,5%, 6%, 6,5%, dan 7%, dan perkadar dibuatkan masig-masing 3 sample benda uji. Pelaksanaan peneliian dilakukan di Laboratarium Teknik sipil Universitas Pancasakti Tegal dan Laboratarium PT, Nisaana Hasna Rizqy. Tahapan pengujian meliputi Pemeriksaan Agregat Agregat kasar dan agregat halus), pemeriksaan aspal AC 60/70,Pemeriksaan filler , pembuatan benda uji campuran beton aspal dan pengujiaan marshall. Hasil uji kinerja karakterisitik Marshall didapat kadar Optimum 5,5% dan hasil rata Stbilitas Marshall 1550,0 kg, nilai rerata Flow (kelelehan) 4,00 mm, nilai Density (kepadatan ) 2,340 gr/cc, nilai VMA ( Void In Mineral Agregate) 14,40%, nilai rerata Vim (Void In Mix ) 3,70%, nilai rerata VFB (void Filled Bitumen ) 76,20%, dan nilai rerata Marshall Quotient (MQ) 440,0 kg/mm
STUDI PERENCANAAN NORMALISASI SUNGAI BABAKAN KABUPATEN BREBES Okky Hendra
Engineering : Jurnal Bidang Teknik Vol 12 No 1 (2021): APRIL
Publisher : Universitas Pancasakti Tegal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24905/eng.v12i1.1836

Abstract

Abstract: In early 2020, from January to February, 6 floods were recorded, the worst was when the embankment overflow occurred in the villages of Kemurang Wetan, Kemurang Kulon and Pejagan. The cause of flooding in the Babakan River is high rainfall intensity and is not supported by an adequate river cross-sectional capacity. From the results of the planned rainfall analysis, it was found that the average rainfall in the Babakan River Basin was 81.63 mm. The research locations are located in three points which include Kubangwungu Village with a plan length of 750 meters, Sutamaja Village with a plan length of 300 and Kemurang Wetan Village with a plan length of 1000 meters. From the observation location research of flood discharge was recorded 91.56 m3/ sec and average daily discharge is 1:45 m3 / sec. At the existing conditions, the cross section of the river is able to accommodate a discharge of 91.56 m3 / s based on a simulation of the flow profile calculation with the help of Software HEC-RAS 5.0.7. Based on the calculation of the cross-sectional dimensions, it is found that the ideal cross-sectional detail is 30 meters wide, 5.2 high and 4 meters wide with Q plan, namely Q50 721.33 m3 / s with the assumption of a discharge of 510,353 m3 / s with the shape of the cross section according to conditions in the field, either using slope 1 : 2 and 1: 1.
Co-Authors mr Weimintoro Teguh Haris Teguh Haris Santoso wiemintoro Tn