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All Journal Hexatech: Jurnal Ilmiah Teknik Journal of Civil Engineering and Vocational Education Advance Sustainable Science, Engineering and Technology (ASSET)
Utomo, Eko Wahyu
Unknown Affiliation
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering Transportation

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Correlation of Air, Surface and Pavement Temperatures using MPU 6050 Accelerometer Sensor Septiani, Teni; HM, Muhamad Rofi; Syafier, Siegfried; Utomo, Eko Wahyu
CIVED Vol. 11 No. 3 (2024): September 2024
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v11i3.630

Abstract

This research analyses the correlation between air temperature, road surface temperature and pavement temperature using the MPU 6050 accelerometer sensor and the Pearson correlation method. Temperature measurements were taken at several predetermined locations, with the data analysed to identify the correlation between the three types of temperature. The analysis showed a very strong correlation between air temperature and road surface temperature, with a correlation coefficient of 0.7845 at night and 0.9663 during the day. Similarly, there is a very strong correlation between road surface temperature and pavement temperature, with a correlation coefficient of 0.8482 at night and 0.9673 during the day. These findings indicate that an increase in road surface temperature leads to an increase in pavement temperature. It was concluded that the correlation method can be used to predict temperatures at other points without invasive direct measurements, thus preventing damage to the road due to destructive measurements. This method is recommended as an alternative in pavement temperature monitoring.
Development of an Ultrasonic Surface Roughness Meter for Road Maintenance: A Prototype for IRI Measurement Utomo, Eko Wahyu; Pratikso; Siegfried
Advance Sustainable Science Engineering and Technology Vol. 7 No. 2 (2025): February-April
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/d057s113

Abstract

The importance of the road network in Indonesia as a vital infrastructure that connects various regions has made road maintenance a top priority in development planning. However, various challenges such as ineffective handling methods, limited experts, and minimal equipment have caused road management to not be optimal. Therefore, innovations are needed in road condition measurement, one of which is through the development of an ultrasonic sensor-based surface roughness measuring instrument as a prototype of International Roughness Index (IRI) measurement to support more accurate road maintenance evaluation and planning. The purpose of this research is to measure road roughness through IRI and pavement modulus values to improve road condition assessment.This study employs the International Roughness Index (IRI) to assess the functional condition of roads and the Pavement Modulus to evaluate the structural strength of the pavement. The IRI is measured through road surface roughness surveys using a roughness meter, with the results used to classify the severity of road damage. The IRI calculation is based on a quarter-car simulation model that utilizes vehicle dynamic parameters in response to road surface profiles, following the mathematical approach developed by Sayers, Gillespie, and Paterson (1986). The research results show that the prototype Ultrasonic Surface Roughness Meter was able to measure IRI values ranging from 4 to 8 at three different locations. These measurements fall within the "Good–Fair" classification, indicating relatively mild surface roughness. Based on these findings, the Directorate General of Highways recommends light rehabilitation and periodic maintenance, and the prototype device has the potential to serve as an effective, low-cost alternative for road condition monitoring, especially in areas with limited access to conventional IRI measurement tools.
Pengaruh perendaman air laut terhadap kuat tekan beton Self Compacting Concrete (SCC) dengan penambahan Fly Ash dan Visconcrete Fauzi Akbar, Musa; Kodariah, Gentli Siti; Sudarsono, Ignatius; Utomo, Eko Wahyu
Hexatech: Jurnal Ilmiah Teknik Vol. 2 No. 1 (2023): Hexatech: Jurnal Ilmiah Teknik
Publisher : ARKA INSTITUTE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55904/hexatech.v2i1.592

Abstract

Salah satu inovasi yang dapat dibuat yaitu beton Self Compacting Concrete (SCC) yang dimana beton ini dapat memadat dengan sendirinya tanpa bantuan alat vibrator. Penelitian ini bertujuan untuk mengetahui pengaruh perendaman air laut terhadap kuat beton Self Compacting Concrete dengan penambahan Fly Ash dan Visconcrete. Metode pengumpulan data yang didapatkan dari data primer yang dilaksanakan dengan membuat benda uji di laboratorium sesuai dengan standar yang telah ditentukan. Pengujian beton segar dilakukan dengan menggunakan alat V-funnel, L-ShapeBox, dan Slump flow, sedangkan pengujian kuat tekan dilakukan pada beton berumur 7, 28, dan 56 hari setelah direndam menggunakan air laut dan air tawar. Hasil dari penelitian ini yaitu kuat tekan tertinggi berada pada beton tanpa campuran Fly ash (FA 0%) sebesar 34-42 Mpa pada umur 7-56 hari, lalu beton dengan campuran Fly ash sebesar 55% memperoleh kuat tekan mencapai 37,96 Mpa yang direndam menggunakan air laut selama 56 hari, sedangkan beton yang direndam menggunakan air tawar berada padacampuran beton Fly ash sebesar 55% dengan kuat tekan mencapai 32,37 Mpa pada umur 56 hari.
Co-Authors Fauzi Akbar, Musa HM, Muhamad Rofi Kodariah, Gentli Siti Pratikso Septiani, Teni Siegfried Siegfried Syafier, Siegfried Sudarsono, Ignatius