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All Journal APTEK IJEBA (International Journal of Economic, Business & Applications) Jurnal Inotera SAINSTEK JURNAL KARYA ILMIAH MULTIDISIPLIN Jurnal Vokasi Manajemen Dan Rekayasa Infrastruktur Sipil
Azhari Azhari
Universitas Riau
Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation Other

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PENENTUAN MUTU AGREGAT HALUS DARI BERBAGAI QUARRY PADA PRODUKSI BETON Suprasman -; Ermiyati -; Azhari -; Edria Dianjani
Jurnal APTEK Vol. 4 No. 2 (2012): APLIKASI TEKNOLOGI
Publisher : Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (391.215 KB) | DOI: 10.30606/aptk.v4i2.62

Abstract

This study aims to determine the magnitude of the compressive strength of concrete by using a fine aggregate from various quarry by using SK SNI and weight ratio mixture of 1:2:3.The results showed that the maximum value of Compressive strength of concrete mixture from various quarry aggregate by using the standard SK SNI obtained at the quarry lake Bingkuang concrete at the age of 28 days at 20.94 MPa. Strong hit a maximum value of mixing concrete from various quarry aggregate by a mixture of 1:2:3 ratio was also obtained on the quarry lake Bingkuang at 28 days amounting to 21.04 MPa.From a variety of fine aggregate quarry lakes tested were Bingkuang with 1:2:3 mixture has better quality than the other quarry, the difference in two ways is not too significant because the difference in compressive strength value of 0.5% only. The best Quarry of fine aggregate is from Bingkuang Lake area, but in general all good quarry used to mix concrete, because they meet the standards of SK SNI.
KAJIAN EXPERIMENTAL TENTANG UMUR PERAWATAN BETON MEMAKAI LEMBARAN PLASTIK DITINJAU TERHADAP KUAT TEKAN BETON Azhari -; Suprasman -; H Gusyafri; Dedy Irawan Putra
Jurnal APTEK Vol. 4 No. 2 (2012): APLIKASI TEKNOLOGI
Publisher : Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (151.995 KB) | DOI: 10.30606/aptk.v4i2.63

Abstract

Among the factors that influence the behavior of the compressive strength of concrete after placing of concrete is the presence/absence of concrete curing and how it's cure done. Concrete curing intended as an effort to maintain the continuity of the hydration process of cement with water to binder aggregate until a certain time. Loss of water during the hydration process can reduce the quality of concrete, especially concrete compressive strength. Meanwhile in the field (on projects that are less supervision) are often encountered - especially in the column - after the mold is opened (with the opening of varying ages), concrete is left alone without curing. This research review the extent to which variations in the treatment of curing post placing of concrete affect the compressive strength of concrete. For it was made in the form of cylindrical concrete specimens with varying age of treatment (by way of concrete with a plastic cover) after the mold is opened, which is 1 day, 3 day, 7 days, 14 days, 21 days, and 28 days. In addition to the specimens was made with the standard curing for comparison.
Blue Economy Concept in Extension Waste of Fish Baung Into Fish Oil in Sungai Paku Village Kampar Kiri, Kampar Regency, Riau Province Mirna Ilza; Ikhsan Ikhsan; Azhari Azhari; Buchori Buchori
INTERNATIONAL JOURNAL OF ECONOMICS, BUSINESS AND APPLICATIONS Vol 4, No 1 (2019)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (241.82 KB) | DOI: 10.31258/ijeba.4.1.44-52

Abstract

Service to the public entitled "Guidance processing of fish waste baung into fish oil in Sei Paku Village, Kampar Kiri, Kampar District, Riau Province "has been carried out for 4 months in order to: 1) provide understanding and insight to the participants extension that baung fish waste can be processed into fish oil. 2) Giving briefing to the participants on the techniques of fish waste processing into fish oil. 3) To motivate participants to conduct business based processed fish waste products to supplement the family income. 4) Maintaining the quality and quantity of fish oil products produced in order to penetrate the wider market. 5) Provide new jobs. 6) Realize blue economy. Blue Economy is an economic concept that will be developed in Sei Paku to the challenging of environmentally destructive economic system, the damage caused by the presence of fish processing waste baung released into the environment. Interest extension with the motto of  Blue Economy is no waste is wasted, meaning that all fishery products including waste can be utilized to improve the welfare of the community. Method of activities undertaken to achieve the goal of community service are lectures, discussions, consultations and practical demonstrations directly manufacture baung fish waste into fish oil. Counseling is done four stages starting with preparation for the month of August 2016, the implementation in September 2016, the establishment of a business group in October 2016, evaluation and monitoring in November 2016. As a result, at the end of public education can already take advantage of the technology is taught and business groups has been formed to start a business based on fish waste to increase the family income at the same time realizing the BlueEconomy
Pengaruh Penambahan Fly Ash Cangkang Sawit dan Kapur Dolomit Sebagai Bahan Substitusi Sebagian Semen Terhadap Kuat Tekan Mortar Eko Bayu Rahman; Ermiyati Tanjung; Azhari Azhari; Andre Novan; Yenita Morena
SAINSTEK Vol. 10 No. 2 (2022)
Publisher : Sekolah Tinggi Teknologi Pekanbaru

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35583/js.v10i2.149

Abstract

Penggunaan mortar di Indonesia dalam pembangunan kontruksi cukup tinggi, seperti plesteran dinding, pengisi kolom komposit dan lain sebagainya, namun mutu dari mortar itu sendiri tidak diperhatikan. Tujuan dari penelitian ini yaitu diharapkan dapat menghasilkan mortar alternatif berbasis limbah dengan mutu kuat tekan yang lebih tinggi dari mortar normal, dan untuk mengetahui pengaruh penambahan fly ash cangkang sawit dan kapur dolomit terhadap kuat tekan mortar yang dihasilkan dengan variasi 0%, 5%, 10%, 15% dan 20%. Pembuatan sampel benda uji mortar menggunakan cetakan yang berbentuk kubus dengan ukuran 5x5x5 cm dan kemudian dilakukan pengujian pada umur sampel mortar 28 hari. Hasil penelitian menunjukkan bahwa semakin bertambahnya komposisi fly ash cangkang sawit dan kapur dolomit maka kuat tekan mortar semakin menurun tetapi kuat tekan mortar akan meningkat bila kedua bahan dicampurkan, yang mana kuat tekan mortar normal yaitu 28 MPa, setelah penambahan fly ash cangkang sawit, hasil tertinggi yaitu pada campuran 5% dengan hasil 20,8 MPa dan terendah yaitu pada campuran 20% dengan hasil 12,13 MPa. Sedangkan kuat tekan mortar pada subtitusi kapur dolomit tertinggi (meningkat) pada campuran 5% dengan hasil 35,47 MPa, dan terendah pada campuran 20% dengan hasil 21,20 MPa. Namun pada mortar yang menggunakan bahan subtitusi campuran fly ash cangkang sawit dan kapur dolomit 10% didapatkan kuat tekannya meningkat lebih tinggi yaitu sebesar 31,33 MPa. Dengan demikian penambahan kapur dolomit sangat berpengaruh terhadap kuat tekan mortar ini.
Pengaruh Good Corporate Governance, Capital Adequacy Ratio, Non Performing Financing, Kualitas Aktiva Produktif, dan Dana Pihak Ketiga Terhadap Kinerja Keuangan Perbankan Syariah Sri Muliyanti; Restu Agusti; Azhari Azhari
Jurnal Karya Ilmiah Multidisiplin (JURKIM) Vol. 3 No. 1 (2023): Jurnal Karya Ilmiah Multidisiplin (Jurkim)
Publisher : Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (317.247 KB) | DOI: 10.31849/jurkim.v3i1.12785

Abstract

Penelitian ini bertujuan untuk menganalisis pengaruh Good Corporate Governance, Capital Adequacy Ratio, Non Performing Financing, Earning Asset Quality dan Dana Pihak Ketiga terhadap kinerja keuangan perbankan syariah. Penelitian ini menggunakan Return on Assets sebagai proksi untuk mengukur kinerja keuangan perbankan syariah. Populasi dalam penelitian ini adalah bank umum syariah yang terdaftar di Otoritas Jasa Keuangan periode 2015-2019. Sampel dipilih berdasarkan metode purposive sampling, sehingga bank syariah yang dijadikan sampel adalah 12 bank umum syariah dengan total 60 observasi. Metode analisis data yang akan digunakan dalam penelitian ini adalah analisis regresi linier berganda. Hasil penelitian menunjukkan bahwa good corporate governance, capital adequacy ratio, dan non performing financing berpengaruh terhadap kinerja keuangan pada α < 0,05, sedangkan variabel kualitas aktiva produktif dan dana pihak ketiga tidak berpengaruh terhadap kinerja keuangan syariah. perbankan pada α < 0,05.
Mechanical Review of Fine Sand-Clay Varians Muhammad Shalahuddin; Andre Novan; Safridatul 'Audah; Azhari; Gussyafri; Sri Djuniaty
Jurnal Inotera Vol. 8 No. 2 (2023): July - December 2023
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol8.Iss2.2023.ID264

Abstract

Clay in nature consist of a mixture of grains and minerals with or without the content of organic matter. The variation in the size of clay grains and the proportion of their distribution is a very useful indicator for knowing soil behavior. Testing the combination of fine sand - clay (FSC) using clay from Kulim Pekanbaru and fine sand from Teratak Buluh Riau. Variants of the percentage of FSC are carried out with the types of tests carried out are Standard Proctor Test, Unconfined Compressive strength test, Direct Shear Test and sieve analysis test and hydrometer. Increasing the percentage of clay in the FSC variant, increases the liquid limit, increasses the plastic limit and increases the plasticity index. Increases optimum moisture content, decreases maximum dry density and increases soil friction angle and decreases compressive strength
PEMANFAATAN SPENT BLEACHING EARTH (SBE) YANG TELAH DIEKSTRAKSI SEBAGAI BAHAN CAMPURAN PEMBUATAN BATU BATA DENGAN VARIASI 0%, 30%, 40%, 50%, dan 60%. Kelvin Ananda; Fakhri; Azhari; Andre Novan; Ermiyati
Jurnal Vokasi Manajemen Dan Rekayasa Infrastruktur Sipil Vol. 2 No. 2 (2025): JULI - DESEMBER 2025
Publisher : Teknik Sipil Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56208/jvmatriks.v2i2.41

Abstract

This study aims to utilize extracted Spent Bleaching Earth (SBE) waste as an additive material in the production of clay bricks. SBE waste is a by-product of the palm oil bleaching process, which is abundantly available and has the potential to cause environmental pollution if not properly managed. The variations of SBE content used in this research were 0%, 30%, 40%, 50%, and 60% of the total clay weight. Tests were conducted on the physical appearance, dimensions, porosity, and compressive strength of the resulting bricks. The results showed that the addition of SBE waste affected the color and surface texture of the bricks, where higher SBE content tended to decrease visual quality. The volume shrinkage values ranged from 35.24% to 39.34%, which still met the requirements of SNI 15-2094-2000. However, the compressive strength test results indicated a decrease as the SBE percentage increased, with the highest value of 2.70 MPa and the lowest of 1.76 MPa, both below the minimum SNI standard of 5 MPa (Class III). Overall, SBE waste can be utilized up to a 30% variation as an alternative additive material in brick production, but further optimization is required by reducing the mixture variation to meet the structural strength standards.
Subtitusi Sebagian Semen dengan Fly Ash pada Beton yang Terpapar Sulfat Ditinjau Terhadap Kuat Tekan Beton Zikra Nanda; Azhari Azhari
Jurnal Vokasi Manajemen Dan Rekayasa Infrastruktur Sipil Vol. 3 No. 1 (2026): JANUARI-JUNI 2026
Publisher : Teknik Sipil Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56208/jvmatriks.v3i1.50

Abstract

Provinsi Riau dengan lahan gambut yang cukup luas memiliki tantangan tersendiri dalam hal konstruksi khususnya konstruksi beton bertulang. Kandungan sulfatnya serta tingkat keasaman yang tinggi bisa berdampak buruk terhadap beton yang selanjutnya terhadap tulangannya. Oleh karena itu perlu perhatian tersendiri terhadap pembetonan di lahan gambut agar awet. Di sisi lain, fly ash sebagai limbah pembakaran batu bara pada tungku pembangkit listrik tenaga uap (PLTU) dinilai dapat meningkatkan kualitas beton dalam hal kekuatan, kekedapan air, ketahanan terhadap sulfat dan workability beton (Sofwan Hadi, 2000). Penelitian ini mengkaji bagaimana pengaruh substitusi sebagian semen dengan fly ash (abu terbang) terhadap kuat tekan beton yang terpapar sulfat. Fly ash dicampurkan sebanyak 30% dari berat semen. Dibuat juga sampel beton normal tanpa fly ash sebagai pembanding. Umur sampel divariasikan 7 hari, 14 hari, dan 28 hari. Setiap variasi dibuat 3 sampel yang direndam dalam air biasa & 3 sampel yang direndam dalam air sulfat untuk pendekatan simulasi paparan sulfat terhadap beton. Hasil penelitian menunjukkan bahwa paparan sulfat untuk hampir semua variasi perlakuan dapat mengurangi kekuatan beton baik pada beton normal maupun beton yang dicampur fly ash. Pada rendaman air biasa, kuat tekan beton beton yang dicampur fly ash lebih rendah dari beton normal. Pada rendaman air sulfat, substitusi fly ash berdampak positif terhadap kuat tekan beton pada umur-umur muda (7 hari & 14 hari) namun sebaliknya pada umur beton 28 hari.
Co-Authors Buchori Buchori Dedy Irawan Putra Dedy Irawan Putra Edria Dianjani Edria Dianjani Eko Bayu Rahman Ermiyati - Fakhri Gussyafri H Gusyafri H Gusyafri3 Ikhsan Ikhsan Kelvin Ananda Mirna Ilza Muhammad Shalahuddin Novan, Andre Restu Agusti Safridatul Audah Sri Djuniaty Sri Muliyanti Suprasman - Suprasman - Yenita Morena Zikra Nanda