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All Journal Teknika Sains : Jurnal Ilmu Teknik Proceeding Applied Business and Engineering Conference
Saputra, Andy Eka
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Pengaruh Campuran Limbah Tempered Glass dan Limbah Ampas Tebu Untuk Pembuatan Beton Mutu Tinggi Ariyanti, Titi; Saputra, Andy Eka; Agustina, Resti
TEKNIKA SAINS Vol 9, No 1 (2024): TEKNIKA SAINS
Publisher : Universitas Sang Bumi Ruwa Jurai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24967/teksis.v9i1.2782

Abstract

Meningkatnya keperluan material beton menggunakan bahan-bahan dari alam seperti batuan alam dapat mengakibatkan eksploitasi sumber daya alam yang dapat mengganggu lingkungan. Perlu adanya inovasi bahan pembuat beton dengan menggunakan limbah tempered glass dari mobil bekas/rusak dan limbah ampas tebu dalam implementasi pembuatan beton. Penelitian ini bertujuan untuk mengetahui mix desain beton dengan bahan tambah limbah tempered glass dan limbah ampas tebu, mengetahui kuat tekan beton serta efisiensi penggunaan limbah tempered glass dan limbah ampas tebu sebagai bahan tambah agregat halus. Sampel beton dibuat sebanyak 6 buah benda uji dengan cetakan silinder dengan ukuran diameter 10 cm dan tinggi 20 cm. Dari hasil penelitian diperoleh jumlah material untuk mix design campuran beton per m3 dengan persentase ampas tebu sebesar 3 persen dari berat semen dan tempered glass sebesar 15 persen dari berat pasir yaitu air sebesar 206,4512 liter, semen sebesar 870,682 kg, pasir sebesar 288,9575 kg, agregat kasar sebesar 963,36 kg, abu ampas tebu sebesar 26,9283 kg, serbuk kaca tempered glass sebesar 50,9925 kg dan superplasticizer sebesar 7,1808 kg. Nilai kuat tekan beton untuk benda uji umur 7 hari diperoleh nilai rata-rata sebesar 17,495 MPa, dan untuk benda uji 28 hari diperoleh nilai rata-rata sebesar 30,276 MPa. Dapat disimpulkan bahwa penggunaan limbah tempered glass dan limbah ampas tebu dalam campuran beton tidak dapat digunakan untuk beton mutu tinggi, penggunaan limbah tersebut dapat digunakan untuk beton mutu rendah.
Climate Control Efforts that Impact Flood Disasters in the Lampung Saputra, Andy Eka; Suprapto, Suprapto; Raharjo, Ismadi
ABEC Indonesia Vol. 12 (2024): 12th Applied Business and Engineering Conference
Publisher : Politeknik Negeri Bengkalis

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Abstract

The imbalance between the current availability of water resources and the need for water is an important problem in almost all regions in Indonesia, so that it requires a conception of the engineering and operation of existing facilities. control and utilization of water as well as management carried out efficiently and effectively in order to meet various needs. As an effort to avoid conflicts of interest, an engineering management of dam operations is needed. This raises the idea of ​​the need for water management engineering existing reservoirs. Based on reservoir water inflow and outflow data from 2019 to 2022, optimization was carried out on the Minimum Demand Analysis (Firm Yield Analysis) and Maximum Analysis of Reservoir Water Release using the Non-Linear Generalized Reduced Gradient (GRG) Method. Inflow and outflow data iterations as a function of objectives and constraints Minimize Reservoir Capacity and Amount of water storage in the reservoir = Inflow, and demand at the Way Sekampung Dam = Outflow obtained by Firm Yield Analysis of 335.62 Million M3 or 335 MCM. Thus, it can be concluded that the effective storage volume that can be allocated for irrigation is located between the minimum reservoir elevation at +250 m and the maximum elevation at +255 m. The results of the volume interpolation of the optimization results obtained with an elevation elevation of + 253.74 m, as well as the optimization results for the total release of reservoir water at 281 MCM, so that the management of water resources can then become a benchmark in the distribution of irrigation water, raw water, hydropower and water conservation. continuously
Co-Authors Ismadi Raharjo, Ismadi Resti Agustina Suprapto Suprapto Titi Ariyanti