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All Journal Jurnal Rekayasa Sistem Industri Jurnal Teknik Sipil Jurnal Sinergitas PkM & CSR OISAA Journal of Indonesia Emas Buletin Poltanesa Jurnal Jalan Jembatan
Daniel, Christian Gerald
TU Delft
Agriculture, Biological Sciences & Forestry Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Public Health Social Sciences

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ANALYSIS OF THE EFFECT OF USING FIBER ARAMID-POLYOLEFIN ON THE STRENGTH, STIFFNESS, AND DURABILITY OF WARM MIX ASPHALT Daniel, Christian Gerald
Jurnal Teknik Sipil Vol 27, No 1 (2020)
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jts.2020.27.1.2

Abstract

AbstractWarm asphalt technology is an alternative for road pavement structures. One method to improve the performance of warm mix asphalt is by using fiber as an additive. This study aimed to analyze the effect of using aramid and polyolefin fibers in warm mix asphalt through several tests, to provide recommendations for the optimum fiber content. 4-point bending and triaxial tests on the DAC-16 asphalt mix sample with a fiber proportion of 0.05% of the total sample weight resulted in an increase in fatigue life of 100% and a decrease in creep coefficient of 20%. Then, a tensile test was conducted on asphalt mortar sample, as well as semi circular bending test on DAC-16 asphalt mix sample, with three different fiber contents: 0.05%, 0.1% and 0.5%, and with two different fiber lengths: 19-mm and 38-mm. The test results showed an increase in stiffness up to 89% and a decrease in creep coefficient up to 45% compared to the control sample, also increased tensile strength by 12.5% and total energy by 17%. In addition, it was found that the addition of 38-mm fiber of 0.1% of the specimen?s total weight gave optimum performance. It can be concluded that the addition of fiber with a length of 38-mm, a content of 0.1% gave an optimum mixture performance improvement. The CT scan result on the mortar sample explains the strengthening mechanism due to the addition of fiber, i.e. (i) load transfer between fibers and (ii) fiber-asphalt matrix interface bonding.Abstrak Teknologi aspal hangat menjadi salah satu alternatif untuk struktur perkerasan jalan. Salah satu metode untuk meningkatkan performa campuran aspal hangat yakni dengan menggunakan bahan tambah fibre. Penelitian ini hendak menganalisis pengaruh dari penggunaan fibre aramid dan polyolefin pada campuran aspal hangat melalui beberapa pengujian, untuk memberi rekomendasi dosis fibre yang optimum. Hasil uji 4-point bending dan triaxial pada sampel campuran aspal DAC-16 dengan proporsi fibre 0.05% berat sample total yakni peningkatan fatigue life sebesar 100% serta penurunan creep coefficient 20%. Kemudian, pengujian tarik dilakukan pada sampel aspal mortar, serta semi-circular bending test pada sample campuran aspal DAC-16, dengan tiga dosis fibre berbeda: 0.05%, 0.1% dan 0.5%, serta dengan dua panjang fibre yang berbeda: 19-mm dan 38-mm. Hasil pengujian menunjukkan peningkatan kekakuan hingga 89% serta creep coefficient yang menurun hingga 45% dibanding sample kontrol, juga peningkatan kuat tarik sebesar 12.5% dan total energi sebesar 17%. Selain itu, ditemukan bahwa penambahan fibre 38-mm sebanyak 0.1% dari total berat spesimen memberi performa optimum. Dapat disimpulkan bahwa penambahan fibre dengan panjang 38-mm, dosis 0.1% memberikan peningkatan performa campuran yang optimum. Hasil CT-Scan pada sampel mortar menjelaskan mekanisme perkuatan akibat penambahan fibre, yakni (i) transfer beban antar fibre dan (ii) interface bonding fibre-matriks aspal. 
ASSESSING THE DEVELOPMENT AND FUTURE OF MORAL-BASED ACTIONS AND LEADERSHIP IN SCIENCE AND TECHNOLOGY SECTORS IN INDONESIA Christian Gerald Daniel
Jurnal PPI Dunia Vol 2 No 2 (2019)
Publisher : OISAA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52162/jie.2019.002.02.5

Abstract

A solid understanding of ethics is one of the most crucial aspect in any technological or scientific progress. Any development proceeded without proper knowledge of ethical value will drive the process to fall under the risk of failure that often damages the surroundings. In this paper, numerous essential ethical theories from various philosophers are elucidated herein to yield a general code of conduct as the basis to analyse several cases in several sectors, such as academic, engineering and medical, in attempt to locate any potential violation of values in accordance to the aforementioned study. Furthermore, several key points regarding the suggested moral virtues are summarised from the ethical code in the respective sectors to gain an understanding of the application of the theorems to the conducts. Lastly, numerous attempts of improvement in each sector; one example is the broader opportunity of conducting research supported by the government, are discussed in the last segment of this paper. The ultimate goal is then to illustrate the development of effort made in each sector in Indonesia learn from the mistakes to improve the condition with respect to the moral virtues and sustainability.
Analysis of The Effect of Using Fiber Aramid-Polyolefin on The Strength, Stiffness, and Durability of Warm Mix Asphalt Christian Gerald Daniel
Jurnal Teknik Sipil Vol 27 No 1 (2020)
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jts.2020.27.1.2

Abstract

AbstractWarm asphalt technology is an alternative for road pavement structures. One method to improve the performance of warm mix asphalt is by using fiber as an additive. This study aimed to analyze the effect of using aramid and polyolefin fibers in warm mix asphalt through several tests, to provide recommendations for the optimum fiber content. 4-point bending and triaxial tests on the DAC-16 asphalt mix sample with a fiber proportion of 0.05% of the total sample weight resulted in an increase in fatigue life of 100% and a decrease in creep coefficient of 20%. Then, a tensile test was conducted on asphalt mortar sample, as well as semi circular bending test on DAC-16 asphalt mix sample, with three different fiber contents: 0.05%, 0.1% and 0.5%, and with two different fiber lengths: 19-mm and 38-mm. The test results showed an increase in stiffness up to 89% and a decrease in creep coefficient up to 45% compared to the control sample, also increased tensile strength by 12.5% and total energy by 17%. In addition, it was found that the addition of 38-mm fiber of 0.1% of the specimen's total weight gave optimum performance. It can be concluded that the addition of fiber with a length of 38-mm, a content of 0.1% gave an optimum mixture performance improvement. The CT scan result on the mortar sample explains the strengthening mechanism due to the addition of fiber, i.e. (i) load transfer between fibers and (ii) fiber-asphalt matrix interface bonding.Abstrak Teknologi aspal hangat menjadi salah satu alternatif untuk struktur perkerasan jalan. Salah satu metode untuk meningkatkan performa campuran aspal hangat yakni dengan menggunakan bahan tambah fibre. Penelitian ini hendak menganalisis pengaruh dari penggunaan fibre aramid dan polyolefin pada campuran aspal hangat melalui beberapa pengujian, untuk memberi rekomendasi dosis fibre yang optimum. Hasil uji 4-point bending dan triaxial pada sampel campuran aspal DAC-16 dengan proporsi fibre 0.05% berat sample total yakni peningkatan fatigue life sebesar 100% serta penurunan creep coefficient 20%. Kemudian, pengujian tarik dilakukan pada sampel aspal mortar, serta semi-circular bending test pada sample campuran aspal DAC-16, dengan tiga dosis fibre berbeda: 0.05%, 0.1% dan 0.5%, serta dengan dua panjang fibre yang berbeda: 19-mm dan 38-mm. Hasil pengujian menunjukkan peningkatan kekakuan hingga 89% serta creep coefficient yang menurun hingga 45% dibanding sample kontrol, juga peningkatan kuat tarik sebesar 12.5% dan total energi sebesar 17%. Selain itu, ditemukan bahwa penambahan fibre 38-mm sebanyak 0.1% dari total berat spesimen memberi performa optimum. Dapat disimpulkan bahwa penambahan fibre dengan panjang 38-mm, dosis 0.1% memberikan peningkatan performa campuran yang optimum. Hasil CT-Scan pada sampel mortar menjelaskan mekanisme perkuatan akibat penambahan fibre, yakni (i) transfer beban antar fibre dan (ii) interface bonding fibre-matriks aspal. 
Evaluasi Life Cycle Cost Produksi Campuran Aspal Modifikasi Skala Laboratorium Daniel, Christian Gerald; Firdaus, Fadhil M.; Imanuella , Mazmuria Irene
Jurnal Rekayasa Sistem Industri Vol. 13 No. 1 (2024): Jurnal Rekayasa Sistem Industri
Publisher : Universitas Katolik Parahyangan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26593/jrsi.v13i1.7259.37-46

Abstract

This paper compares the life cycle costs (LCC) of various asphalt mixture technologies added with polymeric substances that modify either the binder or the whole mix and evaluates the hotspot of each mix type with the scope of cradle-to-gate from the raw materials purchase to the production of 7 kg samples. The polymer-modified binder yields the largest total cost of IDR 12,197, followed by the polymer-modified warm and hot asphalt mixture with a difference of up to 3% and 14.5%, and the standard hot mix gives the lowest result (IDR 9,344) of 23.4% smaller than the largest. Raw material price holds the major contribution with approximately 82.7%, while electricity consumption accounts for 30%. Oven heating contributes the most to the calculated impact from the lab production by 40 to 60%, followed by the mixing activity by a 10 – 30% difference. Conclusively, the LCC of bituminous mixture production is heavily influenced by raw materials price and electricity consumption, and the standard hot mix asphalt generates the lowest total cost, despite having a higher cost than the warm mix in the production stage.
PERBANDINGAN DAMPAK LINGKUNGAN PRODUKSI SKALA LABORATORIUM CAMPURAN ASPAL MODIFIKASI POLIMER DENGAN METODE CAMPURAN BASAH DAN KERING MENGGUNAKAN LIFE CYCLE ASSESSMENT (LCA) Daniel, Christian Gerald; Rifqon, M.; M. Firdaus, Fadhil; A. Canny, Khairina
Jurnal Jalan Jembatan Vol 40 No 1 (2023)
Publisher : Direktorat Bina Teknik Jalan dan Jembatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58499/jatan.v40i1.1188

Abstract

This study evaluates the environmental impact of polymer-modified bituminous mix production through wet-mixed polymer-modified bitumen (PMB) and direct, dry mixing technique using the Life Cycle Assessment (LCA) method based on emission monitoring in the lab for 5 samples per each type of mix. Ethylene-Vinyl Acetate (EVA) of 5% and 6% bitumen weight was incorporated for the dry mix. The scope of this study was from raw material acquisition to lab-scale production. Emission monitoring from the sample production stage in the lab showed that producing PMB-based samples increased CO2 concentration by 21.78 – 38.3%, Volatile Organic Compound by 16.69 – 28.93%, as well as formaldehyde and particulate matter by 14.6 – 20.17% and 7 – 37%, all were due to a higher heating temperature. LCA outcomes showed that the Global Warming Potential impact category of 5 PMB sample production was 2.8kg CO2-eq, increasing by 1.1 – 4.1%. The Freshwater Aquatic Ecotoxicity Potential of 5 PMB samples production was 0.32 kg 1.4-DB eq, 9.15 – 12.33% higher than the EVA-modified specimens, and both Human Toxicity and Photochemical Oxidation increased by 14.35 – 25% to 167 kg 1.4-DB eq and 0.00081 kg C2H4 eq. The Marshall Quotient and Stability of the EVA-Modified mix were 67.7% higher and 14% lower than the PMB-based specimens with similar volumetric properties, indicating an eco-friendlier solution from the dry-blended polymer-modified asphaltic mixtures approach with similar properties.
INVESTIGASI EKSPERIMENTAL TERHADAP SIFAT MEKANIS CAMPURAN ASPAL MODIFIKASI POLIMER ETILEN-VINIL ASETAT DENGAN METODE CAMPURAN KERING Daniel, Christian Gerald; Widjajakusuma, Jack; Widjaya, Valencio Stephen; Edricnes; Saputan, Clairine
Jurnal Jalan Jembatan Vol 40 No 2 (2023)
Publisher : Direktorat Bina Teknik Jalan dan Jembatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58499/jatan.v40i2.1189

Abstract

This study aims to evaluate the impact of Ethylene-Vinyl Acetate (EVA) polymer modification in the dry mix method on the properties of asphalt components and asphalt-concrete mixtures. SEM and FTIR test images show the separation between polymer and bitumen. The VA fraction (carbonyl ring of bands 1600-2000 and 1080) affects the chemical composition of bitumen and produces properties that tend towards elasticity with little change in stiffness based on the DSR test. Air voids in the asphalt mixture were also reduced. Mixture stiffness, as seen from the modulus of elasticity and Marshall Quotient (MQ) values, increased by 20% and 50%, Marshall stability increased by 40%, tensile strength of mastic asphalt samples and asphalt concrete mixtures increased by up to 600% and 83.1% at low loading speeds, respectively. as well as 50% and 70% at high load speeds. This indicates that the mixed material is stiffer and stronger, especially on the mastic scale, where an asphalt mixture with an EVA content of 5% gives the best results. Fracture energy showed varying results, with the best value achieved at 5% EVA content for the asphalt mastic scale and 4% EVA for the asphalt concrete mix scale. A polymer content of 5% is recommended to produce a stiff, high-strength asphalt mixture. Key words: asphalt concrete, bitumen, dry mix method, ethylene-vinyl acetate, polymer-modified asphalt
DISEMINASI PERKEMBANGAN TEKNOLOGI ASPAL DALAM SEMINAR “ASPHALT DAY 2022” Daniel, Christian Gerald; Purba, Sadvent Martondang
Jurnal Sinergitas PKM & CSR Vol. 7 No. 1 (2023): APRIL
Publisher : Universitas Pelita Harapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19166/jspc.v7i1.6531

Abstract

Kegiatan seminar Asphalt Day 2022 ini dibuat dalam dua tahap. Sesi pertama diadakan di tanggal 27 Januari 2022 bekerja sama dengan PT. Enceha Pacific dan Nouryon Southeast Asia mengangkat topik pengantar mengenai teknologi aspal, sedangkan sesi kedua diselenggarakan di tanggal 30 November 2022 dengan mengajak PT. Buntara Megah Inti, PT. Jaya Konstruksi Manggala Pratama serta Iterchemica untuk bersama-sama membagikan materi mengenai aspal modifikasi polimer dan aspal rekayasa daur ulang. Seminar tahap pertama diikuti oleh 217 orang dan mengalami peningkatan hingga 23.5% di tahap kedua dengan rata-rata peserta berasal dari kontraktor, dan parameter kesuksesan acara ini diukur dari hasil survei yang diberikan ke peserta. Survei menunjukkan bahwa tingkat kepuasan akan acara dan materi yang dibawakan mencapai lebih dari 90%, dengan materi yang dibawakan dianggap sangat relevan dengan kebutuhan professional peserta, secara khusus pada topik kajian teoritis aspal modifikasi polimer dan aspal daur ulang.  
Evaluasi Life Cycle Cost Produksi Campuran Aspal Modifikasi Skala Laboratorium Firdaus, Fadhil M.; Daniel, Christian Gerald; Firdaus, Fadhil M; Imanuella , Mazmuria Irene
Jurnal Rekayasa Sistem Industri Vol. 13 No. 1 (2024): Jurnal Rekayasa Sistem Industri
Publisher : Universitas Katolik Parahyangan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26593/jrsi.v13i1.7259.37-46

Abstract

This paper compares the life cycle costs (LCC) of various asphalt mixture technologies added with polymeric substances that modify either the binder or the whole mix and evaluates the hotspot of each mix type with the scope of cradle-to-gate from the raw materials purchase to the production of 7 kg samples. The polymer-modified binder yields the largest total cost of IDR 12,197, followed by the polymer-modified warm and hot asphalt mixture with a difference of up to 3% and 14.5%, and the standard hot mix gives the lowest result (IDR 9,344) of 23.4% smaller than the largest. Raw material price holds the major contribution with approximately 82.7%, while electricity consumption accounts for 30%. Oven heating contributes the most to the calculated impact from the lab production by 40 to 60%, followed by the mixing activity by a 10 – 30% difference. Conclusively, the LCC of bituminous mixture production is heavily influenced by raw materials price and electricity consumption, and the standard hot mix asphalt generates the lowest total cost, despite having a higher cost than the warm mix in the production stage.
Enhancing Indonesian Maritime Route Security to Prevent Transnational Crime Daniel, Cherryl Gwyneth; Daniel, Christian Gerald; Marzaman, Atika Puspita
Poltanesa Vol 24 No 2 (2023): December 2023
Publisher : P3KM Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/tanesa.v24i2.2943

Abstract

This paper highlights the transnational crime issues that have threatened Indonesia’s maritime security in recent years, then explores the possible challenges and how Indonesia has improved its response to these issues. Major acts that have affected Indonesia's maritime security include the Abu Sayyaf terrorist group, illegal actions by Vietnamese, Malaysian, and Singaporean fishermen, smuggling and human trafficking by Captain Bram, as well as drug trafficking that has developed during the COVID-19 pandemic. From the issue of illegal fishing only, Indonesia has suffered a loss of 477.33 million USD in 2014-2021. Many obstacles limit efforts to find solutions, a combination of internal factors such as Indonesia's lack of quality resources, and external factors such as maritime border disputes and the absence of clear definitions to assess maritime security conditions in various international cooperation. Our government has responded by initiating several national resource development plans, such as the establishment of Bakamla, implementation of presidential regulation no. 16 of 2017, developing infrastructures such as sea tolls and port renewal, as well as created cooperative relationships with various countries, namely Australia, the Philippines, Malaysia, China and other countries in the Southeast Asia and the Indian Ocean regions. Consequently, a trusting relationship with good communication can be formed between Indonesia and other countries to address threats to maritime security and reduce the number of transnational crimes in Indonesian waters, although not yet in large numbers.
Co-Authors A. Canny, Khairina Daniel, Cherryl Gwyneth Edricnes Firdaus, Fadhil M Firdaus, Fadhil M. Imanuella , Mazmuria Irene Jack Widjajakusuma M. Firdaus, Fadhil Marzaman, Atika Puspita Rifqon, M. Sadvent Martondang Purba Saputan, Clairine Widjaya, Valencio Stephen