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All Journal APTEK JOURNAL OF CIVIL ENGINEERING, BUILDING AND TRANSPORTATION Journal of Applied Engineering and Technological Science (JAETS) INCODING: Journal of Informatics and Computer Science Engineering Dinamika Lingkungan Indonesia SAINSTEK Jurnal Vokasi Manajemen Dan Rekayasa Infrastruktur Sipil
Ermiyati -
Jurusan Teknik Sipil Fakultas Teknik Universitas Riau
Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Analisis Network Planning Dan Crash Program Pada Proyek Pembangunan Rumah Susun Yayasan Pondok Modern Al Kautsar Ermiyati Ermiyati; Fakhri Fakhri; Suprasman Suprasman; Firdi Mulyadi
INCODING: Journal of Informatics and Computer Science Engineering Vol 2, No 1 (2022): INCODING APRIL
Publisher : Mahesa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34007/incoding.v2i1.240

Abstract

The cause of project delays in terms of planning and scheduling is the management aspect. To avoid project delays, Yayasan Pondok Modern Al Kautsar development project was delayed due to lack of manpower, changes in work items, and difficulty getting into the project so that one alternative was needed, namely analysis of Network Planning with Critical Path Method (CPM), Project Evaluation and Review Technique (PERT) and Crash Program. Alternatives are the increase in the amount of labor to get maximum acceleration and the addition of alternative minimum costs. Implementation of acceleration with Critical Path Method (CPM), Project Evaluation and Review Technique (PERT) and Crash Program and using Micorosft Project 2019 software to facilitate in analyzing Network Diagrams and determining critical trajectories. The alternative goal is to find out how many days the project schedule can be accelerated and the cost of acceleration. The initial planning of the project was carried out for 198 days at a cost of Rp. The 6.738.000.841,66. most optimal alternative is Crash Program 2 with a maximum acceleration increase of 2 days with a project completion time of 196 days with an acceleration cost of Rp. 59,580,000.
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.
Pengaruh Penambahan MasterGlenium ACE® 8595 dengan Pengurangan Kadar Air 37.5% dan Kadar Semen Rencana 409.80 kg/m3 Terhadap Kuat Tekan Beton Andre Novan; Ermiyati Ermiyati; Yenita Morena; Ella Silvana Chebelita
JOURNAL OF CIVIL ENGINEERING BUILDING AND TRANSPORTATION Vol 6, No 1 (2022): JCEBT MARET
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jcebt.v6i1.6786

Abstract

MasterGlenium ACE® 8595 is a Type F chemical that serves to reduce the amount of mixing water, improve workability and improve concrete quality. The purpose of this study was to find out the effect of adding MasterGlenium ACE® 8595 with a reduction in water content of 37.5% and a plan cement level of 409.80 kg / m2. The research was conducted in the laboratory using the DOE (Department of Environment) method in accordance with SNI 03-2834-2000 with a test object in the form of a concrete cylinder diameter of 150 mm and a height of 300 mm. MasterGlenium ACE® 8595 tested on concrete age 7 days 3 sample, and 28 days 5 sample. Variations in the dose of addition of MasterGlenium ACE® 8595 used 0.54%, 0.81%, 1.08%, 1.35%, 1.62%, 1.89% and 2.16% of cement weight. The test results of a strong concrete press normal at 28 days amounted to 29.77 MPa.  The test results of a strong concrete press normal at 28 days amounted to 29.77 MPa.  The results of the test are strong concrete press with the addition of MasterGlenium ACE® 8595 amounting to 51.61 MPa, 53.53 MPa, 45.95 MPa, 49.80 MPa, 41.25 MPa, 40.80 MPa, and 39.27 MPa. Based on the results of the test, the use of MasterGlenium ACE® 8595 in concrete will increase the strength of the press, workability, and age coefficient.
Penilaian Risiko Keselamatan Dan Kesehatan Kerja Pada Pekerjaan Kolom, Balok dan Pelat Lantai (Studi Kasus Proyek Konstruksi Pembangunan Gedung Kantor Kejaksaan Tinggi Provinsi Riau) Ermiyati Ermiyati; Fakhri Fakhri; Citra Hockiana
JOURNAL OF CIVIL ENGINEERING BUILDING AND TRANSPORTATION Vol 5, No 2 (2021): JCEBT SEPTEMBER
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jcebt.v5i2.5583

Abstract

The implementation of construction activities, especially building construction work, has a high risk of accidents because each stage of the work contains many potential hazards that can be detrimental. This study aims to determine the highest occupational accident risk and its control in column, beam and floor slab work. The research method was carried out through field observations as well as interviews and surveys from several sources. The results of this study are jobs that contain the highest risk value, namely in the steps of installing work and dismantling column formwork, installing scaffolding, and installing wooden beams on beam and floor slab work where each step of this work has a risk level value of 6, this has high level of risk . For hazard control, the contractor carries out several work programs with the aim of reducing the potential for work accidents. As for the program in the form of  Toolbox, Safety Patrol, Safety Weekly Meeting, Safety Talk, Fooging and Extrapuding.
Pengujian Kuat Lentur Dan Kuat Tekan Kayu Sengon Dengan Mengunakan Lapisan/ Coating Resin Yenita Morena; Ermiyati Ermiyati; Andre Novan; Yolanda Novianti
Sainstek (e-Journal) Vol. 9 No. 2 (2021)
Publisher : Sekolah Tinggi Teknologi Pekanbaru

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Pengujian kuat lentur dan kuat tekan kayu adalah pengujian yang didasarkan pada sifat-sifat mekanik kayu yaitu menahan tarikan dan tekanan. Hal ini bertujuan untuk mengetahui kelas kayu dan besar perubahan nilai kuat lentur dan kuat tekan kayu sengon solid dengan kayu sengon setelah diberi lapisan zat resin. Pada pengujian ini dilakukan tiga variasi yang berbeda dimana setiap pengujian kuat lentur dan kuat tekan yaitu, kuat lentur kayu solid, kuat lentur kayu coating dengan resin 1 lapis dan kuat lentur kayu coating resin 2 lapis. Begitu juga dengan pengujian kuat tekan dilakukan variasi yang sama serperti pengujian kuat lentur. Pada setiap pengujian ini diperoleh kelas kayu adalah kayu kelas III, dan persentase rata-rata kenaikan kuat lentur kayu coating resin 1 lapis adalah sebesar 17,97 MPa atau sekitar 0,4 % dari nilai kuat lentur kayu solid, sedangkan persentase rata-rata kenaikan kuat lentur kayu coating resin 2 lapis adalah sebesar 23,40 MPa atau sekitar 0,5 %. Dan untuk pengujian kuat tekan kayu coating resin 1 lapis mengalami penurunan sebesar 0,77 MPa, atau sekitar 0,02 % dari kuat tekan kayu solid, sedangkan pada pengujian kuat tekan kayu coating resin 2 lapis mengalami penurunan sebesar 1,53 MPa, atau sekitar 0,04 % dari nilai kuat tekan kayu solid.
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.
Implementasi Model Soil dan Water Assessment Tool (SWAT) Dalam Pengelolaan Das Mikro Sei Tanduk Nurdin Nurdin; Imam Suprayogi; Muhammad Shalahuddin; Ermiyati Ermiyati; Siswanto Siswanto; Andre Novan
Dinamika Lingkungan Indonesia Vol 10, No 1 (2023)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/dli.10.1.p.38-44

Abstract

The Soil and Water Assessment Tool (SWAT) model which is integrated with the Geographic Information System (GIS) can provide an overview or prediction of the influence of land management on the hydrology of the Micro Sei Tanduk watershed in accordance with the interests of evaluating and monitoring watershed management activities. The purpose of this study was to analyze the management of the Sei Tanduk Micro watershed based on land use patterns, as a basis for determining the best recommendations for planning and evaluating the Indragiri Rokan Watershed Management Project Activities for Fiscal Year 2003 by compiling a Master Plan for the Micro Sei Tanduk Watershed Master Plan Rumbio Village, Kampar Regency. The research method is to process primary and secondary data using a SWAT model that is integrated with GIS in analyzing hydrological characteristics in land use scenarios in the management of the Micro Sei Tanduk watershed, as a basis for providing recommendations. The best recommendation from the evaluation and analysis of the Micro Sei Tanduk watershed management based on land use patterns is scenario 2 in the form of applying agroforestry on mixed dry land agriculture with the insertion of forestry trees based on community participation in the Micro Sei Tanduk watershed, Rubio Village, Kampar District, Kampar Regency.
The Durability of Stone Matrix Asphalt (SMA) Mixtures Designed Using Reclaimed Asphalt Pavement (RAP) Aggregates Against Floodwater Immersion Edi Yusuf Adiman; Mardani Sebayang; Ermiyati Ermiyati; Yenita Morena
Journal of Applied Engineering and Technological Science (JAETS) Vol. 4 No. 2 (2023): Journal of Applied Engineering and Technological Science (JAETS)
Publisher : Yayasan Riset dan Pengembangan Intelektual (YRPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37385/jaets.v4i2.1842

Abstract

The durability of asphalt mixtures against floodwater immersion can serve as a reference to anticipate potential road damage. Moreover, Reclaimed Asphalt Pavement (RAP) materials have been discovered as a substitute for aggregate materials in road pavement due to their environmental friendliness and cost-effectiveness. Therefore, this research aimed to assess the durability of asphalt mixtures produced using RAP aggregate materials against floodwater immersion for 1, 2, 4, and 8 days. The process involved using Stone Matrix Asphalt (SMA) mixtures with a proportion of 33% RAP aggregate as test specimens. The Marshall test conducted on the asphalt mixture produced an optimum asphalt content (OAC) value of 6.1%. Moreover, the durability of the mixture reduced up to the 8th day of immersion with a residual strength value of 86.29%. It was also discovered that the reduction in the durability value of the mixture produced using 33% RAP aggregate was almost similar to the application of 100% new aggregate (non-RAP). This means RAP aggregate materials are feasible as an environmentally friendly substitute in the mixture of road pavement.
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.
Penambahan Zat Aditif Bestmittel Dengan Dosis 0,5% dan Pengaruhnya Terhadap Kuat Tekan Beton Salsabilla Salsabilla; Ermiyati Ermiyati; Haji Gussyafri; Andre Novan; Nurdin Nurdin
SAINSTEK Vol. 13 No. 2 (2025)
Publisher : Sekolah Tinggi Teknologi Pekanbaru

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35583/js.v13i2.409

Abstract

Concrete is one of the main construction materials widely used in infrastructure development due to its high compressive strength and good durability. However, achieving optimum compressive strength in concrete requires a relatively long curing time, around 28 days. To overcome this issue, additives such as Bestmittel are used, which function to accelerate the hardening process and increase the compressive strength of concrete at an early age. This study aims to determine the effect of adding 0.5% Bestmittel on the compressive strength of concrete at curing ages of 3, 5, 7, 15, and 28 days. The specimens used were cylindrical with a diameter of 15 cm and a height of 30 cm, and three samples were prepared for each variation. Based on the test results, the compressive strength of normal concrete at 28 days was 26.31 MPa, while the compressive strength of concrete with Bestmittel at 3, 5, 7, 15, and 28 days was 20.47 MPa, 25.65 MPa, 25.94 MPa, 27.63 MPa, and 32.16 MPa, respectively. At 7 days, concrete with Bestmittel almost reached the strength of normal concrete at 28 days, with a percentage of 98.58%, and at 15 and 28 days it exceeded the strength of normal concrete with percentages of 105.03% and 122.24%, respectively. The results show that the addition of 0.5% Bestmittel is effective in accelerating early-age strength gain, making it highly suitable for use in construction projects that require high strength within a relatively short time.
Co-Authors Azhari Azhari - Azhari - Azhari Azhari Citra Hockiana Edi Yusuf Adiman Edria Dianjani Edria Dianjani Eko Bayu Rahman Ella Silvana Chebelita Fakhri Fakhri Fakhri Firdi Mulyadi Gussyafri Imam Suprayogi Kelvin Ananda Mardani Sebayang Muhammad Shalahuddin Novan, Andre Nurdin Nurdin Salsabilla Salsabilla Siswanto, Siswanto Suprasman - Suprasman - Suprasman Suprasman Yenita Morena Yolanda Novianti