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Alexius Luther Ola
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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LIMBAH FLY ASH PABRIK MINYAK NABATI SEBAGAI BAHAN SUBSTITUSI SEMEN DALAM PEMBUATAN BATAKO Doly P Silaban; Alexius Luther Ola
Jurnal Penelitian Teknologi Industri Vol. 11 No. 1 Juni 2019
Publisher : Balai Riset Dan Standardisasi Industri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (365.542 KB) | DOI: 10.33749/jpti.v11i1.5055

Abstract

Utilization of fly ash waste to subtitute portland cement in concrete brick fabrication to resolve enviromental problem  has been done. This research used fly ash from waste of vegetable oil industry at Bitung City. Descriptive method has been used to interprete data with sand and fly ash composition as free variable and portland cement composition as constant variable. At the beginning  As, Cd, Cr, Hg and Pb concentration in fly ash was analyzed and comply minimum standard on Indonesia government regulation (PP No 18 Tahun 1999) about dangerous waste, so it could be used as concrete bricks raw materials. Sample prototype dimension was molded in (cm) 27x12x8 with 10 samples for one test and data was provided from two repetition. Compressive Strength from fly ash mixing showed value (kg/cm2) 27.77-64.22 with water absorption value (%) 9.62-16.79. Compressive strength value of concrete brick from fly ash mix comply SNI 03-0349-1989 standard on grade III and IV.
PENGARUH ABU SEKAM PADI SEBAGAI BAHAN PENGISI UNTUK PEMBUATAN TUNGKU RUMAH TANGGA Alexius Luther Ola
Jurnal Penelitian Teknologi Industri Vol. 6, No. 1 Juni Tahun 2014
Publisher : Balai Riset Dan Standardisasi Industri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (476.226 KB) | DOI: 10.33749/jpti.v6i2.3197

Abstract

Penelitian Abu sekam padi sebagai bahan pengisi dalam pembuatan tungku rumah tangga telah dilakukan, melalui tahap penelitian bahan baku dan aplikasi pembuatan tungku.Penelitian ini bertujuan untuk mendapatkan komposit bahan baku untuk bodi/badan tungku yang sesuai dan mendapatkan hasil desain tungku yang sesuai untuk keperluan rumah tangga. Hasil pengamatan dan uji fisik komposit bahan diperoleh susut kering rata-rata antara kisaran 5,24-9,49%, susut bakar dengan kisaran 0,80-1,82%, kuat tekan 46,66-70,84 kg/cm² dan dalam keadaan baik, tidak retak, tidak bengkok pada pengeringan dan pembakaran 700 °C.Selanjutnya dibuat tungku dengan komposit bahan dari Abu Sekam Padi (ASP) 1 bagian dengan 3 bagian Tanah Liat Plastis (TLP) dan 2 bagian ASP + 3 bagian TLP dengan model 2 lubang dan 4 lubang aliran udara pada badan tungku. Hasil uji coba penggunaan tungku memasak air 500 ml diperoleh waktu tercepat adalah 11,65 menit dengan bahan bakar 665 g pada (X2Y1). Hasil pengamatan suhu dalam ruang bakar setelah pemakaian tungku selama 210 menit menunjukkan suhu tertinggi 60 °C pada tungku dengan perlakuan bahan 1 bagian ASP + 3 bagian TLP dengan model tungku 2 lobang (X2Y1) dan terendah 40 °C pada tungku perlakuan bahan tanpa ASP dengan model 2 lobang (X0Y1) dan perlakuan bahan tanpa abu sekam dengan model tungku 4 lobang (X0Y2).Kata kunci: Abu, Sekam Padi, Tungku Rumah Tangga.
PENGAWETAN KAYU AREN SEBAGAIBAHAN SEDIAAN MEUBEL Petrus Patandung; Doly P Silaban; Alexius Luther Ola
Jurnal Penelitian Teknologi Industri Vol. 11 No. 1 Juni 2019
Publisher : Balai Riset Dan Standardisasi Industri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (521.093 KB) | DOI: 10.33749/jpti.v11i1.5298

Abstract

Pengawetan kayu aren sebagai bahan sediaan pembuatan meubel adalah suatu usaha untuk memanfaatkan pohon aren yang tidak produktif.Tujuan penelitian adalahmengolah batang aren yang tidak produktif menjadi bahan meubel dengan  melalui pengawetan   sehingga diperoleh  ketersediaan bahan baku  untuk  produk meubel  yang  tahan lama. Metode penelitian yaitu batang aren dipotong-potong dengan ukuran panjang 125 cm, lebar 10 cm dan tebal 5 cm.Hasil penelitian ternyata bahwa kayu aren dengan panjang dari dasar 6 meter dapat diolah menjadi meubel dengan melalui proses pengawetan dengan menggunakan bahan kimia tirmisida dengan produk meja 58 x 50 x 45 cm. Pengawetan menggunakan metode perendaman dingin kayu aren direndam selama 1, 2 dan 3 minggu. Hasil penetrasi  diperoleh sebesar 45,56-93,25 %, kadar air sebesar 12,60-14,75 %. Hasil penelitian menunjukkan bahwa hasil yang terbaik diperoleh pada perlakuan dengan perendaman 3 minggu Karena produk kayu aren  tidak berjamur sampai dengan  penyimpanan 30 hari dengan kadar air 14,65 %. Hasil proses pembuatan meubel atau meja ternyata dapat menarik dari segi warna dan penampakan yaitu berwarna coklat. 
Effect of Solid Waste Fly Ash from Vegetable Oil Company in Production of Paving Block Alexius Luther Ola; Doly Prima Silaban
Jurnal Keramik dan Gelas Indonesia Vol 28, No 1 (2019): Jurnal Keramik dan Gelas Indonesia
Publisher : Balai Besar Keramik

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (354.711 KB) | DOI: 10.32537/jkgi.v28i1.5115

Abstract

Vegetable oil company produced large amount of fly ash as a solid waste. This waste has to be placed in a special space and this requirement causing problem for the vegetable oil company, such as decreasing of open space and aesthetics value of a place. This study has been aimed to know addition effect of fly ash on paving block quality. This research used variation of fly ash and coarse sand volume, while fine sand and Portland cement volume as a constant value. The result showed that fly ash can be used as filler material of paving block. Sample was analyzed using SNI 03- 0691-1996 procedure and showed highest value of compresisive strength on A1B2 treatment (22.34 Mpa), while the lowest was showed on A3B3 treatment (18.58 MPa). Water absorption values were ranged from 2.41% to 4.48%, and fulfill standart requirement. Based on test result paving block from A1B1, A1B2, A1B3,A2 B1, A2B2 and A2B3 treatment complied quality standart as B grade of paving block (used for parking yard), when A3B2 and A3B3 treatment complied quality standart as C grade of paving block (used for pedestrian base). The best treatment was A1B2 which consisted of (parts) 2 : 8 : 2 of fly ash, sand and Portland cement respectively, with compressive strength value 22.34 MPa and water absorption value 2.60%
Effect of Solid Waste Fly Ash from Vegetable Oil Company in Production of Paving Block Alexius Luther Ola; Doly Prima Silaban
Jurnal Keramik dan Gelas Indonesia Vol 28, No 1 (2019): Jurnal Keramik dan Gelas Indonesia
Publisher : Balai Besar Keramik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32537/jkgi.v28i1.5115

Abstract

Vegetable oil company produced large amount of fly ash as a solid waste. This waste has to be placed in a special space and this requirement causing problem for the vegetable oil company, such as decreasing of open space and aesthetics value of a place. This study has been aimed to know addition effect of fly ash on paving block quality. This research used variation of fly ash and coarse sand volume, while fine sand and Portland cement volume as a constant value. The result showed that fly ash can be used as filler material of paving block. Sample was analyzed using SNI 03- 0691-1996 procedure and showed highest value of compresisive strength on A1B2 treatment (22.34 Mpa), while the lowest was showed on A3B3 treatment (18.58 MPa). Water absorption values were ranged from 2.41% to 4.48%, and fulfill standart requirement. Based on test result paving block from A1B1, A1B2, A1B3,A2 B1, A2B2 and A2B3 treatment complied quality standart as B grade of paving block (used for parking yard), when A3B2 and A3B3 treatment complied quality standart as C grade of paving block (used for pedestrian base). The best treatment was A1B2 which consisted of (parts) 2 : 8 : 2 of fly ash, sand and Portland cement respectively, with compressive strength value 22.34 MPa and water absorption value 2.60%
Pemanfaatan Kaolin dalam Pembuatan Cat Tembok Menggunakan “Emulsifier” Na- Silikat dan Perekat Polivinil Asetat Alexius Luther Ola
Jurnal Riset Teknologi Industri Vol 11 No.1 JUNI 2017
Publisher : Balai Riset dan Standardisasi Industri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (38.548 KB) | DOI: 10.26578/jrti.v11i1.2787

Abstract

The purpose of this research were to study the effect of the Emulsifier and adhesive concentration on the quality of wall paint by using kaolin raw materials, to support the maximum utilization of mineral resources potentials and to diversify other products of Kaolin. This study was prepared by Completely Randomized Design (CRD) arranged as factorial and consists of two factors, namely: A. The concentration of emulsifier sodium silicate (A1 = 10%; A2 = 15%; A3 = 20%) and B. The concentration of polyvinyl acetate adhesive (B1 = 10%; B2 = 15%). Quality analysis is conducted qualitatively (nature of the review, resistance to alkali, resistance to temperature). The results showed the concentration of total solids adhesives affects the paint. Specific gravity wall paint made is 1:41 to 1:59, total solids between 50,37 to 54,82 %, 5-micron fineness, time to dry for about 30 – 50 minutes. Parameters tested quantitatively and qualitatively meet the requirements of SNI 3564 – 2014 wall paint emulsion and resistant to alkali and weather as well as easy-to-apply around. Keywords : kaolin, wall paint, emulsifier,  polyvinyl acetateABSTRAKΤujuan penelitian ini adalah untuk mempelajari pengaruh konsentrasi Emulifier dan perekat terhadap mutu cat tembok dengan bahan baku kaolin, menunjang pemanfaatan sebagai potensi sumber daya mineral secara maksimal serta diversifikasi produk dari kaolin. Penelitian ini disusun dengan Rancangan Acak Lengkap (RAL) yang disusun secara faktorial dan terdari dari 2 faktor yaitu: A. Konsentrasi emulsifier natrium silikat (A1 = 10%; A2 = 15%; A3 = 20%) dan B. Konsentrasi perekat polifinil asetat (B1 = 10%; B2 = 15%). Analisis mutu dilakukan secara kualitatif (sifat pengulasan, ketahanan terhadap alkali, ketahanan terhadap suhu) dan kuantitatif. Hasil penelitian menunjuan konsentrasi perekat berpengaruh terhadap padatan total cat tembok. Berat jenis cat tembok yang dibuat adalah 1:41 – 1:59, padatan total antara 50,37 – 54,82 %, kehalusan -50 mikron, waktu mengering sekitar 30 – 50 menit. Parameter yang diuji secara kuantitatif dan kualitatif memenuhi persyaratan SNI:3564 – 2014 Cat tembok emulsi dan tahan terhadap alkali dan cuaca serta mudah diulaskan. Kata kunci : kaolin, cat tembok, emulsifier, polivinil acetat
Komposit Bata Beton Ringan Dari Fly Ash dan Bottom Ash Limbah Batubara Pabrik Minyak Nabati Alexius Luther Ola; Doly Prima Silaban
Jurnal Riset Teknologi Industri Vol. 12 No.1 Juni 2018
Publisher : Balai Riset dan Standardisasi Industri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (44.101 KB) | DOI: 10.26578/jrti.v12i1.3514

Abstract

ABSTRAKPenelitian pembuatan komposit bata beton ringan dari fly ash dan  bottom ash hasil pembakaran batubara di unit boiler pabrik minyak nabati sebagai pengganti agregat pasir, dengan bahan perekat semen Portland telah dilakukan dengan tujuan untuk mendapat komposit bata beton ringan. Bahan limbah batubara ( fly ash dan bottom ash ) diambil dari boiler industri minyak nabati di kota Bitung. Penelitian dilaksanakan dengan membuat prototype benda uji ukuran (100 x 100 x 100) mm dari fly ash dan b ottom ash sebagai variabel bebas dan agregat pasir, semen serta larutan foam agent sebagai variabel konstan. Prototype benda uji di cetak sebanyak 12 buah tiap perlakuan, dilakukan pemeliharaan (curing) selama 28 hari kemudian dilakukan pengamatan dan uji fisik berdasarkan standar yang ada. Hasil pengujian diperoleh komposit yang terbaik A-5 (5 L fly ash tanpa bottom ash ) dan A-7 (2,5 L fly ash dan 2,5 L bottom ash ) dengan nilai kuat tekan rata-rata (19,06 dan 19,15 kg/cm²) dan bobot isi (1160,19 kg/m³ dan 1242,65 kg/m³) serta penyerapan air (21,96 % dan 14,96 %). Nilai kuat tekan dan penyerapan air memenuhi persyaratan bata ringan untuk untuk konstruksi pasangan dinding bangunan rumah.Kata kunci: bata, batubara, beton-ringan, limbah                                                                          ABSTRACTResearch on the manufacture of lightweight concrete brick composites from fly ash and bottom ash coal waste vegetable oil company to replace sand agregate with Portland cement adhesive has been done with the aim to obtain lightweight concrete brick composites which use fly ash and b ottom ash from coal waste. Research begins with the taking of coal waste materials (fly ash and bottom ash) in the vegetable oil industry in Bitung city, then proceed with the preparation of other auxiliary materials and required equipment. The reward was carried out by making prototype (100 x 100 x 100) mm of the test object and the treatments were fly ash and bottom ash while the use of sand aggregate, cement and foam agent solution was constant. Prototype test object printed as much as 12 pieces each tre atment, carried out maintenance for 28 days then conducted observations and physical tests based on existing standards. From test result of prototype of test object, it turns out that some of the best composite treatment A - 5 (5 L fly ash and no bottom ash) and A - 7 (2,5 L fly ash and 2,5 L bottom ash) was obtained with a compressive strength value of (19,06 and 19,15) Kg/cm2 and weight of content (1160,19 Kg/m3 and 1242,65 Kg/m3) respectively with water absorption values (21,96% and 14,96%). Strength and abs orption values fulfill requirement of lightweight concrete for house building wall
Co-Authors Doly P Silaban Doly P Silaban Doly Prima Silaban Petrus Patandung