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All Journal HAYATI Journal of Biosciences Media Teknik Sipil Jurnal Sains dan Teknologi Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Rekayasa Sipil Proceedings ACES (Annual Civil Engineering Seminar) Jurnal Teknik Sipil Jurnal Teknik Journal of the Civil Engineering Forum Jurnal Sinergitas PkM & CSR Riau Journal of Empowerment Jurnal Rekayasa Sipil Jurnal Serambi Engineering Pelita Masyarakat Journal of Applied Materials and Technology Jurnal Pemerintahan dan Kebijakan (JPK) Dinamika Lingkungan Indonesia Journal of Community Engagement Research for Sustainability Journal of the Civil Engineering Forum Jurnal Bangunan: Konstruksi & Desain BATOBO: Jurnal Pengabdian Kepada Masyarakat
Monita Olivia
Universitas Riau
Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Nursing Physics Public Health Social Sciences Transportation Other

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Kuat Tekan Dan Kuat Tarik Belah Beton OPC Dan OPC Abu Sekam Padi Di Lingkungan Gambut Yogie Pranata; Ismeddiyanto Ismeddiyanto; Monita Olivia
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5, No 1 (2018): Wisuda April Tahun 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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The objective of the study is to investigate the mechanical properties of concrete with different replacement levels of Ordinary Portland Cement (OPC) by Rice Husk Ash (RHA). Two RHA replacement levels were considered in the study which is 5% and 10% by the weight of cement. After the specified initial curing period (28 days), specimens were immersed directly in peat water canal for 28 days. The mechanical properties was evaluated by measuring the compressive strength and tensile strength of the concrete specimens. The result shows that the compressive strength of OPC concrete is higher than OPC concrete using RHA as cementitious materials. A replacement level of 10% RHA in OPC concrete performs and shows better tensile strength than other replacements.Keywords : Mechanical properties, OPC, Rice Husk Ash (RHA), peat water
Penggunaan Bubuk Kulit Kerang Darah Dan Lokan Sebagai Bahan Pengganti Semen Revina Oktaviani; Monita Olivia; Ismeddiyanto Ismeddiyanto
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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In this study, two types of waste seashells, including blood clam and lokan used as cement replacement material. The parameters studied include compressive strength, workability, and unit weight. These properties were compared with those of a control concrete that was made of Ordinary Portland Cement (OPC). Based on the mixes using the ground seashell with proportion 2, 4, 6, and 8% by weight of cement, the optimum compressive strength was achieved for the mix that replaced cement by 4%. Incorporation of lokan seashell resulted higher unit weight than other concrete. The result indicate that waste seashells can be applied as cement replacement and may improve the workability of concrete.Keywords: seashells, cement replacement, compressive strength, unit weight, workability
Kuat Tekan Dan Perubahan Berat Beton OPC Dan OPC POFA Dengan Menggunakan Air Gambut Sebagai Air Pencampur Di Lahan Gambut Gustina Gultom; Ismediyanto Ismediyanto; Monita Olivia
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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This research study the compressive strength and mass loss of OPC concrete and concrete combine of OPC +10% palm oil fuel ash (POFA). The specimens cured in peat environment until 28 days. Compressive strength of concrete OPC G higher than OPC POFA G because reaction of pozzolanic make slowly calcium silicat. Weight changes showed OPC G until 28 days increased because acid can make expantions so volume of concrete increased. Concrete OPC G +10% POFA decreased because reaction pozzolanic can less acid for concrete.Keywords: Durability, OPC, POFA, peat environment.
Korosi Baja Tulangan Pada Beton OPC, PCC, Dan OPC POFA Di Lingkungan Air Garam Debby Mayangsari; Monita Olivia; Zulfikar Djauhari
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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This paper presents the results of an experimental investigation on the steel reinforcement corrosion and sorptivity. Concretes having three type of cements (OPC, PCC, and a mixtured of palm oil fuel ash). The effect of using blended cements on the resistance of concrete against damage caused bycorrosion of the embedded reinforcement has been investigated using an halfcell potential (ASTM C876). PCC concrete showed high resistance against damage by corrosion of the steel reinforcement.Keywords : palm oil fuel ash (POFA), half-cell potential, sorptivity, concrete
Kuat Tekan Dan Sifat Fisik Beton OPC, OPC POFA, Dan PCC Menggunakan Air Gambut Sebagai Air Pencampur Beton Redol Sianturi; Monita Olivia; Edy Saputra
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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The use of peat water is often used as concrete mixing water in areas difficult to obtain clean water. Peat water containing a low pH is not recommended as concrete mixing water because it can reduce the quality of concrete. Mineral materials such as Palm Oil Fuel Ash (POFA) used in the concrete mix to increase the density and strength of the resulting. This study aims to assess the compressive strength and physical properties such as porosity and water sorptivity concrete using peat as concrete mixing water. Type of cement used in the concrete mixture is OPC, PCC, and OPC POFA 10%. Peat water for the research came from Rimbo Panjang, Kampar and POFA derived from PKS GAS, Kandis. Research results show that the peat water can still be used to mix concrete is still above the minimum strength of 90% of the normal compressive strength.Keywords: OPC, PCC, palm oil fuel ash(POFA), peat water
Kuat Tekan Dan Porositas Beton Campuran Crumb Rubber Dan Abu Sekam Untuk Material Perkerasan Kaku Di Tanah Gambut Mia Qoryati; Monita Olivia; Gunawan Wibisono
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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This study aims to study the compressive strength and porosity of PCC concrete and PCC-CR-RHA concrete. PCC concrete as a control and PCC-CR-RHA concrete that contains 5% of crumb rubber and 10% of rice husk ash. These concretes exposed to peat water with flexural strength according to Bina Marga 2018 standard regarding rigid pavement of 4.5 MPa and 35 MPa compressive strength. The tests were carried out after speciments were cured on peat water for 0, 7, and 28 days. The test results showed that the compressive strength of PCC concrete was 32.065 MPa, higher than the compressive strength of PCC-CR-RHA at 28 days. While the porosity of PCC concrete was 7.204%, lower than the porosity of PCC-CR-RHA at 28 days. The test results of PCC concrete compressive strength at the age of 28 days for peat water curing increased by 10.01% as well as PCC-CR-RHA concrete, which increased by 6.79%. PCC concrete porosity values at the age of 28 days for peat water curing decreased by 36.90% as well as PCC-CR-RHA concrete, which decreased by 43.15%. Based on the results of tests conducted, both types of concrete have good compressive strength and porosity when exposed to peat water.Keywords: Compressive strength, porosity, crumb rubber, rice husk ash, rigid pavement, peat soil.
Kuat Tekan Dan Kuat Lentur Beton Gepolimer Fly Ash Bottom Ash (Faba) Hybrid Variasi Extra Water/Faba Amsal Anwary; Monita Olivia; Iskandar Romey Sitompul
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Geopolymers are an alternative cement replacement, made from industrial waste that is rich in silica and alumina, such as fly ash bottom ash. The geopolymerisation bond can beactivated by the activator solution and the curing system at high temperatures. This study utilizes fly ash bottom ash as a geopolymer material and uses an innovative ambient curingease application in the field with additional PCC. This study aims to study the compressive strength and flexural strength of hybrid geopolymer concrete after 28 days of curing with variations of extra water/FABA 0.20 and 0.23. The test results show that the compressivestrength of the extra water/FABA variation of 0.23 has the highest strength value of 15,56 MPa. While the compressive strength of the extra wate /FABA variation of 0.20 has acompressive strength value of 14,62 MPa. The flexural strength value of the extra water/FABA variation of 0,23 has the highest value of 3,08 MPa. While the flexural strength value of the hybrid geopolymer concrete variation of extra water/FABA 0,20 is 2,81 MPa.Keywords : hybrid geopolymer concrete, fly ash bottom ash, PCC, extra water/FABA.
Durabilitas Mortar Bubuk Kulit Kerang Di Air Gambut Ismi Siska Rahmayani; Monita Olivia; Edy Saputra
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

In this study, blood clam used as filler in mortar. The specimens were cured in distilled water until 28 days. Then specimens were immersed in peat water until 91 days. The parameters studied include compressive strength and porosity. These properties were compared with those of a control mortar that was made of Ordinary Portland Cement (OPC). The main parameter of this study was the proportion of waste blood clam (4% by cement weight). The results showed that the compressive strength of mortar with blood clam are increase more than mortar OPC. Mortar becomes more resistant because it was filled by the blood clam.Keywords: blood clam, durability, filler in mortar, peat water, compressive strength, porosity
Pengaruh Konsentrasi Naoh Terhadap Kuat Tekan Mortar Geopolimer Abu Terbang Dengan Perawatan Suhu Ruang Niko Rizaldi; Edy Saputra; Monita Olivia
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Geopolymers are environmental friendly construction materials derived from industrial wastes such as fly ash. The use of geopolymers can reduce the use of cement, therefore reducing world carbon emissions. Polymeric bonding in geopolymer fly ash can be activated using alkaline solutions namely Sodium silicate and Sodium hydroxide (NaOH). This study used fly ash from Padang, West Sumatra. The purpose of this study was to examine the effect of the use of fly ash and Sodium hydroxide on the compressive strength of geopolymer mortar. The research method began with the test of the characteristics of fly ash and fine aggregate. Then the fly ash was added to the cement paste with the various concentrations of 8M, 10M, 12M, 14M and 16M NaOH. The size of mold used was the cube of 5 cm x 5 cm x 5 cm. The compressive strength test of mortar was carried out on 7, 14, 28 days of mortar age. The results of this study indicated that the fly ash reacted with NaOH and the compressive strength of mortar geopolymer was influenced by NaOH concentration. The compressive strength of mortar geopolymer showed an increase on specimens that contained 8M, 10M and 12M NaOH. For example, for the use of specimen with 12M NaOH, there was an increased of compressive strength of 16,7% compared to that of specimen with 8M NaOH. On other hand, the compressive strength of specimen containing 14M NaOH and 16M NaOH decreased by 19,6% and 73,21% respectively, compared to that of specimen containing 12M NaOH. The conclusion of this study was the optimum compressive strength occurred on specimens that contained 12M NaOH by 11,2 MPa.Keywords: compressive strength, fly ash, geopolymer, mortar, NaOH concentration
Perancangan Mortar Geopolimer Abu Sekam Januar Fitri; Monita Olivia; Iskandar Romey S
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

This study present about geopolymer mortar with rice husk ash (RHA) as binder. Both material are used their silica element were activated by alkaline solution. Alkaline solution was prepared by combining sodium silicate and sodium hydroxide of 18 M. Compressive strength of geopolymer mortar that was studied based variation of modulus activator, dosage activator, curing time, and curing temperature. Research showed that optimum mix proportion of geopolymer mortar with Rice Husk Ash (RHA) which result the optimum compressive strength. The ratio of sodium silicate solution to sodium hydroxide solution by mass was 2.5:1. The mass ratio of alkaline solution to blended ashes was 9:10. Test specimens 5×5×5 cm cube were prepared and cured at room temperature (28ºC) for 3 days and heat-cured at 70ºC for 24 hours. The speciemens were cured at room temperature for 7 days until testing date. Result from this research represents compressive strength the mortar as according to variation molar of sodium hydroxide and used a little addition of water.Keywords: Rice Husk Ash, Geopolymer, Alkali Activator, dosage activator.
Co-Authors ', Padil A.A. Ketut Agung Cahyawan W AA Sudharmawan, AA Abdurrahman, Habib Abrar Rifqi Pratama Abrar Rifqi Pratama Achmad, Fariz Ade Anggriawan Ade T Adrianto Ahmad Adrianto Ahmad Afifuddin, Muhammad Agus Ika Putra Ahmad Hamidi Ainiyyah Fadhilah Aisyah Nurfakhirah Sandyna Aldi Nauri Islami, Aldi Nauri Alfadh, Mhd Raja Alfadh, Mhd Raja Alfian Malik Alfikri, Nur Ali Imron Rusadi Ali Imron Rusadi Aman Aman Aman Aman Amir Awaluddin Amsal Anwary Amun Amri Ananda, Yazid Fahmi Andi Darmawan Andrian Prasetyo Annisa Arifandita Mifshella Appriliya Destiyani Ardian Yolanda Arief Rijaldo Fajri Arif Rahman Arnef Frenki Asmanovita, Ririn Ayu Nofikasari Azizi, Wildan Azzahra Aqilla Bella Yuherlina Bobby Ansyari Budi Indrawan Chrisfela Wulandari Daniel Kristanto Darusman Darusman Debby Mayangsari Dedi Futra Dessy Wulan Sari Dhea Fitra Yofani Diah Widya Dinni Yunike Jasril Doli Patumona Dwi Susanto Dwi Susanto Ednor, Meirisa Edy Saputra Edy Syaputra Elen Tarisa Erika L Ermiyati Erwin Erwin ERWINA JULIANTARI, ERWINA Fachry Abda El Rahman Fadhlurrahman, Fadhlurrahman Fadillah, M Lucky Fahri Hafisuddin Fajri Ariefyanto fakhri Fakhri, Fakhri Fauzi, Manyuk Febriarti, Bernadeta Leni Ferisma Ratu Giri Ferry Fatnanta Fitri Amelia Fredinan Yulianda Gunawan Wibisono Gunawan Wibisono Gussyafri Gustina Gultom Habib Abdurrahman Hagus Tizia Harpian Surya Harriad Akbar Syarif Hendra Dermawan Hutapea, Uliarta Ihsanul Muslim Ika Qoriah Nursuci Ikrammullah, Muhammad Ilham Sordiman Imam Suprayogi Ines Junita Sinuhaji Iskandar R Sitompul Iskandar Romey Sitompul Ismeddyanto Ismeddyanto Ismeddyanto, Ismeddiyanto Ismediyanto Ismediyanto Ismi Siska Rahmayani Ismi Siska Rahmayani Jamili, M Joehari Januar Fitri Jaya Alexander Pandiangan Kamaldi, Alfian Kingkin Dwi Pratiwi L, Erika Lita Darmayanti Lora Mona Tambunan Lubis, Shakila Fuadah M Hari Bhakti Maharani Miranda Mardiah, Ramona Marisya Wahyuna Marpaung, Horas Saut Maringan Maulidi, M Aldi Mia Qoryati Miguel Felix Wijaya Miguel Felix Wijaya Milka Novita Manalu Mirza Afrian Mohd. Rizki Novianto Muhammad Afifuddin Muhammad Alfaridzi Adfan Muhammad Farhan Setyawan Muhammad Ikhsan Muhammad Ikhsan Sulaiman Muhammad Rizky Nanda Dwi Putri, Nanda Dwi Nelvia Adi Syafpoetri Niko Rizaldi Niko Rizaldi Niko Rizaldi Novan, Andre Noviandri, Rizky Nur Alfikri Nurdin Nurdin Nurdin Nurwijayanti Oktariyansa, Randy Pardede Pardede Pardede, Pardede Pradana, Tomy Pranata, Yogie Pratama, Rudy Satriya Pratiwi, Kingkin Dwi Qoryati, Mia Rahmani, Syauqi Susana Ramadhan Yanuari Ramadhan Yanuari Randhi Saily Redol Sianturi Reni Suryanita Reny Akmalia Revina Oktaviani Rezha Yaren Rezha Yaren Ria Larici Ria Larici, Ria Ridho Rinanda Rijaldo, Arief Rini Safitri Ririn Yuari Farandia RITA ANDINI Rita Andini Rita Yulismawati Rizky Noviandri Rizqy Ridho Prakasa Rurianti, Dwi Visti Safridatul Audah Satibi, Syawal Septari, Dinda Setyawan, Muhammad Farhan Shakila Fuadah Lubis Shelly Christina Soewignjo Agus Nugroho Sopian sopian Sormin, Lina S Sri Djuniati Suhendrayatna Suhendrayatna Surgaroni uga Sutikno, Sigit Syafpoetri, Nelvia Adi Syaputra, Edy T, Ade Tetty Marta Linda Utama, Panca Setia Wandala Adi Putra Wati, Andini Saras Wibisono , Gunawan Wicaksono Mahestra Noegroho Widya, Diah Widya, Diah Wijaya, Miguel Felix Winda Astuti Halinda Putri Wulan Ramanda Putri Yanuari, Ramadhan Yenita Morena Yofani, Dhea Fitra Yogie Pranata Yudhi Salman Dwi Satya Zakiyul Fuadi Zulfario Anugrah Pratama Zulfikar Djauhari Zulfikar Djauhari Zulfikar Djauhari Zulfikar Djauhari Zulfikar Djauhari