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All Journal Jurnal Teknik Sipil SAINSTEK
Mukhlisin, M
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Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Engineering Materials Science & Nanotechnology Mechanical Engineering

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Daya Tahan Erosi Abrasi Mortar Geopolimer pada Struktur Bangunan Air Ariyanto, Arief Subakti; Wahyudi, S I; Mukhlisin, M
SAINSTEK Vol. 13 No. 1 (2025)
Publisher : Sekolah Tinggi Teknologi Pekanbaru

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35583/js.v13i1.309

Abstract

Kerusakan pada permukaan struktur hydraulik seperti spillway, pilar jembatan, dinding saluran terjadi karena gesekan permukaan antara partikel yang terbawa di dalam air, seperti pasir, kerikil. Kerusakan abrasi permukaan ini akan mempengaruhi umur layanan dari struktur hidraulic. Untuk itu diperlukan material yang memiliki daya tahan abrasi yang mumpuni. Salah satu material yang dapat digunakan adalah geopolimer. Geopoilimer merupakan material ramah linkungan dengan bahan dasar aluminosilikat dan alkali aktivator. Novelty dari penelitian ini adalah penggunaan material geopolimer sebagai binder dari mortar. Pada penelitian ini geopolimer di buat dengan sistem satu komponen yang diaduk secara kering dengan perbandingan binder dan agregat adalah 1: 2, Mix desain geoplimer dibuat dengan pada 14 Molar. Pengujian abrasi yang dilakukan menggunakan metode Uji ASTM C 1138 Under water test. Dari pengujian tersebut diperoleh hasil uji abrasi mortar geopolimer pada umur 28 hari adalah 1,318 8 x 10-4 m3 dengan kuat tekan 47,61 Mpa, sedangkan Mortar Portland Semen dengan komposisi 1 : 2 adalalah 1,45 x 10 -4 m3 dan kuat tekan 28,04 MPa. Daya tahan abrasi mortar geopolimer 36,8 kali lebih baik dari Mortar Portland Semen dengan komposisi yang sama.
An Accident Analysis during the Covid-19 Pandemic in Indonesia uses the Accident Rate Method Rahmawati, Roselina; Mukhlisin, M; Fatmawati, Leily; Wiyana, Yustinus Eka; Wicaksono, Teguh Mulyo
Jurnal Teknik Sipil Vol 31 No 3 (2024): Jurnal Teknik Sipil - Edisi Desember
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jts.2024.31.3.12

Abstract

Abstract Land transportation traffic accidents in Indonesia were affected by the Covid-19 pandemic. During the Covid-19 pandemic, several transportation policies were implemented. An absolute must for implementing transportation safety. During the Covid pandemic in 2019 and 2020, the average number of traffic accidents was 25%, the number of fatalities was 24%, the number of injured victims was 21% and the number of accidents was 25%. In 2021, Indonesian people will begin to face new normal conditions, where all activities run normally in line with the presence of the Covid 19 virus. So that in 2021 and 2022 there will be another increase in the number of traffic accidents, deaths, injuries and accidents. The average figures for 2021 and 2022 for the number of traffic accidents are 26%, the number of fatalities is 26%, the number of injured victims is 23% and the number of accidents is 28%. With the presence of Regulation Number 21 of 2020 concerning PSBB, the number of accidents in Indonesia can be reduced, but the reduction in the accident rate has not occurred significantly. In 2019 the accident rate was 31% and in the year the PSBB policy was implemented the accident rate was 23%, the reduction in the accident rate was only 8%. Keywords : Accident rate, covid 19 pandemic, descriptive analysis, road traffic accidents
Co-Authors Ariyanto, Arief Subakti Leily Fatmawati, Leily Roselina Rahmawati Wahyudi, S I Wicaksono, Teguh Mulyo Yustinus Eka Wiyana, Yustinus Eka