Jurnal Teknologi Rekayasa
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Published By Politeknik Sukabumi

2548-8678, 2548-737x

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Editorial Team
Keyword(s):  

2021 ◽  
Vol 6 (1) ◽  
pp. 147
Author(s):  
Dian Pranata Putra Ambali ◽  
Jumiarti Andi Lolo ◽  
Israel Padang

2021 ◽  
Vol 6 (1) ◽  
pp. 163
Author(s):  
Agri Suwandi ◽  
Zulfikar Sjarief ◽  
Dwi Rahmalina ◽  
Reza Abdu Rahman

2021 ◽  
Vol 6 (1) ◽  
pp. 15
Author(s):  
Anggun Fitrian Isnawati ◽  
Khulqi Rasyid ◽  
Mas Aly Afandi

2021 ◽  
Vol 6 (1) ◽  
pp. 67
Author(s):  
Jata Budiman ◽  
Otto Purnawarman ◽  
Risky Ayu Febriani
Keyword(s):  

2021 ◽  
Vol 6 (1) ◽  
pp. 139
Author(s):  
Rika Chairani ◽  
Aulia Risky Adinda ◽  
Dennis Fillipi ◽  
Muhamad Jatmoko ◽  
I Wayan Koko Suryawan

The cement industry is one type of industry that has implications for the emergence of environmental pollution problems and a decrease in environmental quality due to dust pollution. The cement industry can also increase air temperature and noise in operational activities by using machines. In addition, the impact of the cement industry is the decline in the quality of soil fertility due to clay mining. Thus, an analytical study is needed that can be used as one of the policy bases in the operational process of the cement industry. This study aims to conduct an analysis of environmental loads at each stage in the product life cycle, make decisions to identify environmental loads, and evaluate the environmental impact of a product that plays an important role in sustainable development. This method is known as Life Cycle Assessment (LCA). In this study, the boundary system used is cradle to gate with a three-scenario approach. The first uses 100% coal fuel, the second uses 90% coal fuel, and the third uses 10% rice husk biomass. Then the analysis was carried out using the OpenLCA software. The results of the analysis showed that the most significant emission load was carbon dioxide of 1229.31 kg CO2eq. The third scenario produces the lowest carbon dioxide emission load compared to other methods of 849.1 kg.


2021 ◽  
Vol 6 (1) ◽  
pp. 101
Author(s):  
Kristomus Boimau ◽  
Rima Nindia Selan ◽  
Demas Abia Manimalay

Komposit polimer berpenguat serat alam menjadi tren bagi peneliti dalam beberapa dekade terakhir karena memberikan banyak keuntungan dan sangat ramah lingkungan. Penelitian ini bertujuan untuk mengetahui pengaruh perlakuan alkali dan orientasi serat terhadap sifat impak komposite poliester berpenguat serat buah patola (luffa cylindrical). Bahan yang digunakan adalah serat buah patola dan matrik poliester. Sebelum serat digunakan sebagai penguat pada penelitian ini, terlebih dahulu serat diberi perlakuan alkali dengan cara direndam dalam larutan alkali dengan konsentrasi larutan sebesar 5%, 10%, dan 15% selama 1 jam. Orientasi serat yang digunakan adalah [0/45/0] dan [45/0/45]. Selanjutnya komposit dicetak dengan metode  hand ly up diikuti penekanan selama 24 jam. Komposisi campuran serat dan matrik didasarkan pada aturan Rule of Mixture (RoM), dengan fraksi berat serat sebesar 16,8%. Spesimen uji dibuat sesuai standar ASTM D256 dan diuji dengan alat uji impak Charpy. Hasil pengujian impak menunjukkan bahwa kekuatan impak tertinggi diperoleh pada komposit yang diperkuat oleh serat dengan perlakuan NaOH 10% dan orientasi serat [0/45/0] yaitu 0,0068J/mm2, sedangkam kekuatan impak terendah diperoleh pada spesimen dengan konsentrasi larutan 5% dan orietasi serat [45/0/45] yaitu 0,0037 J/mm2.


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