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All Journal Inersia : Jurnal Teknik Sipil Abdi Reksa Jurnal Polimesin
Yuzuar Afrizal
Universitas Bengkulu
Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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ANALISIS PENGARUH KENDARAAN PARKIR DI BADAN JALAN SEBAGAI HAMBATAN SAMPING TERHADAP KINERJA RUAS JALAN MAHONI KOTA BENGKULU Samsul Bahri; Rio Saputra; Yuzuar Afrizal
Inersia: Jurnal Teknik Sipil Vol 10, No 2 (2018)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (87.044 KB) | DOI: 10.33369/ijts.10.2.69-74

Abstract

Parking on the road body is one of the causes of traffic congestion, therefore the handling of parking on the road becomes very important and has a positive impact on solving traffic congestion problems. The purpose of this study was to determine the effect of parking vehicles on the road body on the performance of the Mahoni Street in Bengkulu City. Data collection methods and techniques include road geometric surveys, traffic volume surveys, side barriers and speed surveys. To get the data in this study is done by recording the state of the road and calculating the number of vehicles that cross the road through the recording.Data generated at peak hours in the form of a capacity of 1544,076 smp/hour traffic volume of 1281.2 sm / hour with a degree of saturation of 0.83 is at the level ofservice D which means approaching an unstable current, low speed. DS value is above the degree of saturation required by MKJI, namely DS <0.75. It is necessary to do alternative countermeasures by moving the parkinglocated on Mahoni Street resulting in a capacity of 2218.5 smp/hour and a saturation degree of 0.50 with level ofservice C which means that the current is stable and the speed is controlled by traffic.
PENGARUH PENAMBAHAN CAMPURAN SEMEN DAN ABU SEKAM PADI TERHADAP STABILISASI TANAH PADA RUAS JALAN BUDI UTOMO I Olandri Wijaya; Mawardi Mawardi; Yuzuar Afrizal
Inersia: Jurnal Teknik Sipil Vol 7, No 2 (2015)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/ijts.7.2.13-20

Abstract

Research on the Effect of Mixed Addition of Cement And rice husk ash Against and Stabilization on Roads Budi Utomo I aims to determine the effect of Addition of Cement And rice husk ash and to finding the optimal mix levels of Addition of Cement And rice husk for land Stabilization. Tests conducted at the Laboratory of Engineering, University of Bengkulu and the types of tests as follows: natural water content, specific gravity, sieve analysis, atterberg limits, standard proctor,and CBR (California Bearing Ratio) laboratories. Based on laboratory testing, native land in Jalan Budi Utomo I was clay with high plasticity After testing the original soil coupled with a mixture of cement and rice husk ash obtained optimum results occur at levels of 12 % of the 4%, 8%, dan 12% variations. The following test results with a mixture of cement and rice husk ash with levels 12 % : on the CBR laboratories testing provide CBR value increase up to 148.42 % of the original soil CBR by weight of the dry contents increased up to 3.846 % of the dry weight of the contents of the original soil. The optimum moisture content decreased to 13.754 % of the original soil optimum water content, whereas soil plasticity index dropped to 50.084 % of the original soil plasticity index, and the specific gravity value of the land increased to 1.923 % of theoriginal soil. Improved stability of the soil caused by cement and rice husk ash containing silica elements where this element has a very large contribution as an adhesive and can harden by reaction with water so as to increase the strength of the soil stabilization.
STRUT and TIE MODEL SEBAGAI ALTERNATIF PERANCANGAN STRUKTUR BETON BERTULANG Yuzuar Afrizal
Inersia: Jurnal Teknik Sipil Vol 3, No 1 (2011)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (521.625 KB) | DOI: 10.33369/ijts.3.1.25-32

Abstract

Design of concrete structures according to the applicable standard is to use the principle of the planning section of the load moment based on the principles of Bernoulli and Navier. Considered linear strain distribution and is considered still valid even though cross-section has been cracked and the planning sectionof the burden of a separate shear forces with the principle of Vc + Vs. The number of cases for the structural elements that have a fairly complicated shape will cause a problem in its design. This happens to the elements - structural elements such as high beam, corbel, beams with fairly abrupt changes in the dimensions, etc. This is evident from the occurrence of non-linear strain distribution so that it can no longer planned in a standard way. Planning is done sometimes only be approach with the regulations - regulations to existing standards, although sometimes there is a significant difference, one alternative approach to deal with is using Strut and Tie Model approach.
PENGARUH SEPEDA MOTOR TERHADAP KAPASITAS PENDEKAT PADA SIMPANG BERSINYAL LENGAN JALAN S. PARMAN-LENGAN JALAN SUTOYO SIMPANG SKIP KOTA BENGKULU Fatmawati Fatmawati; Hardiansyah Hardiansyah; Yuzuar Afrizal
Inersia: Jurnal Teknik Sipil Vol 6, No 1 (2014)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (326.04 KB) | DOI: 10.33369/ijts.6.1.39-52

Abstract

This research is made to find out starting time deprivation of green which caused by motorcycle s and their effect toward capacity on S. Parman road and Sutoyo Simpang Skip rapprochement in Bengkulu. The research was doing in three days on Sunday, Monday, and Wednesday, each of the date was on March 10th, 18th, and 20th 2013. Further, it uses calculation based on Manual Kapasitas Jalan Indonesia (MKJI, 1997) data. Thereby, the results are 1.67 second for the lowest starting time deprivation of green and 12.263 % for the highest increasing capacity on Sunday in the end of afternoon. In line, others are 1.49 second for the lowest of starting time deprivation and 13.21 % for the highest increasing capacity on Sunday in daylight. In the end, this deprivation caused by motorcycles, causes capacity change, deprivation got smaller when the capacity increased. In contrast, it’s better when starting time deprivation of green got higher and the increasing capacity got lower.
ANALISIS TINGKAT KETIDAKRATAAN JALAN NASIONAL DENGAN MENGGUNAKAN ALAT NAASRA Anggita Yuliani; Samsul Bahri; Yuzuar Afrizal
Inersia: Jurnal Teknik Sipil Vol 10, No 2 (2018)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (347.844 KB) | DOI: 10.33369/ijts.10.2.13-20

Abstract

The level of unevenness of the road is a parameter that is often used to measure the roughness of a road segment. The tools and methods used are named NAASRA. The NAASRA tool produces IRI values which then used to classifiedwith road condition according to Binamarga 2005. The purpose of this research is to test the value of road unevenness (IRI), to test the level of road stability, and to arrange the handling needs on Betungan-Padang Serai road. The results show that the Betungan-Padang Serai roads have good roads along 4150 m (75%), medium conditions along 400m (7%), minor damage conditions along 500m (9%), and severe damage conditions of 500 m (9%). The result of road stability test shows that steady road condition is 4550 m (82%) and unsteady road is 1000 m (18%). Routine maintenance is required for 4150 m (75%), major and minor rehabilitation of 400 m (7%), and 1000 m (18%) reconstruction.
PENGARUH PENCAMPURAN DUA JENIS AGREGAT KASAR TERHADAP KUAT TEKAN BETON Aditia Wiranata; Yuzuar Afrizal; Agustin Gunawan
Inersia: Jurnal Teknik Sipil Vol 8, No 1 (2016)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (418.551 KB) | DOI: 10.33369/ijts.8.1.69-74

Abstract

This research aims to find out influence of two combined coarse aggregate toward concrete compressive strength. Two kinds of aggregate which have different quality gradation are coarse aggregate from Quarry Sukaraja (KS) and Pondok Kubang (KP). Conceret mix design used a composition of 1 cement : 2 sand : 3 coral with two coral variations(50% KS + 50% KP and 35% KS + 65% KP), and two kinds of sand (river sand and sea sand). The sample was cylindrical form with diameter of 15 cm, and height of 30 cm as many as 32 samples.Compressive strength test was done at 28 days. Test results of concrete compressive strength showed that 50% KS + 50% KP can improve value of concrete compressive strength to normal concrete (KS) (16,76% (for river sand) and 17,98% (for sea sand)). Concrete compressive strength of mixture of 50% KS + 50% KP increased 31.9% (for river sand) and 30% (for sea sand) to the normal concrete (KP). By a mixture of 35% KS + 65% KP, concrete compressivestrength increased 6,22% (for river sand) and 15,97% (for sea sand) to normal concrete (KS), and a mixture of 35% KS + 65% K increased concrete compressive strength 20% (for sand river) and 27,78% (for sea sand) to normal concrete (KP).
PERILAKU KUAT TEKAN BETON DENGAN ABU CANGKANG SAWIT SEBAGAI PENGGANTI SEBAGIAN SEMEN Martin Lerry; Elhusna Elhusna; Yuzuar Afrizal
Inersia: Jurnal Teknik Sipil Vol 4, No 2 (2012)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (305.472 KB) | DOI: 10.33369/ijts.4.2.43-50

Abstract

The aim of this research was to know if palm oil (Elaeis Guineensis) fly ash could replace some cement. Palm oil fly ash which used was taken from palm oil factory PT.Sandabi Indah Lestari at North Bengkulu. The research was directed according to SK SNI-T-15-1990-03, used cylinder specimens, water cement ratio 0.5, and slump value 30-60 mm. The research was substituted partly cement with palm oil fly ash as 0%, 5%, 10%, 15%, and 20% of cement weight. There were two types of sand used in the research namely oceanic sand and mountain sand. All the samples had the same caring until 28 days when the compression test carried out. Concrete compression strength showed decreasing trend. The strength decreased as theincreasing of percent of palm oil fly ash used. The maximum decreases compared to the strength of concrete without the ash were 40% when the concrete used mountain sand and 45,19% when it used oceanic sand.
PENGARUH PEMANFAATAN PECAHAN TERUMBU KARANG SEBAGAI PENGGANTI AGREGAT HALUS TERHADAP KUAT TEKAN BETON Adika Kurniawan; Yuzuar Afrizal; Agustin Gunawan
Inersia: Jurnal Teknik Sipil Vol 8, No 2 (2016)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (84.873 KB) | DOI: 10.33369/ijts.8.2.17-24

Abstract

Fractional reef has similarities with fine aggregate used as a substitute fine aggregate in theconcrete mix. This study aims to determine the optimal percentage of replacement fragments ofcoral reefs as a substitute for fine aggregate of compressive strength of concrete at 28 days.Test specimen using a slump of 0.6 fas 60-100 cube measuring 15 cm x 15 cm x 15 cm by 20samples. Variation replacement coral fragments used were 25%, 50%, 75% and 100% of theweight of the volume of fine aggregate. The results of the study of fine aggregate replacement with shards of coral reefs have increased the compressive strength of normal concrete. The percentage increase in the compressive strength of concrete for a variation of 3.024% P25replacement, replacement of variation of 6.61% P 50, P 75 variations replacement of 9.219 andvariations replacement P 100 at 1.220%.
Pembuatan Pupuk Kompos Mandiri dari Limbah Organik untuk Tanaman Pekarangan Rumah di RT. 18 Kelurahan Pematang Gubernur Fepy Supriani; Agustin Gunawan; Yuzuar Afrizal
Abdi Reksa Vol. 4 No. 2 (2023)
Publisher : UNIVERSITAS BENGKULU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/abdireksa.4.2.67-71

Abstract

Sampah organik adalah sisa sayur, kulit pisang, buah yang busuk, kulit bawang yang didapat dari aktifitas rumah tangga. Sampah organik kering yang memiliki air lebih sedikit yaitu kayu, ranting pohon, kayu dan daun–daun kering. Sampah organik yang tidak diolah akan menimbulkan bau busuk dan penyakit. Permasalahan sampah limbah rumah tangga juga terjadi di Perumahan RT. 18/2 kelurahan Pematang Gubernur. Setiap rumah di RT. 18 masih menyisahkan tanah untuk pekarangan yang oleh masyarakat ditanami berbagai macam tanaman. Jenis tanah yang kurang baik menyebabkan tanaman tidak tumbuh subur. Pengelolahan sampah organik dapat diupayakan agar menjadi budaya di tingkat lingkungan terkecil. Sampah organik berguna untuk bahan kompos pencampur media tanam. Pembuatan sampah organik dapat dibuat secara mandiri sehingga dapat digunakan langsung untuk tanaman di pekarangan rumah, dan jika dikembangkan dapat menambah nilai ekonomis pendapatan rumah tangga. Tujuan dari kegiatan pengabdian ini adalah membangkitkan kesadaran masyarakat tentang pengolahan sampah dengan sasaran ibu rumah tangga untuk memanfaatkan sampah organik dalam pembuatan kompos mandiri yang dapat digunakan langsung sebagai media tanam dipekarangan rumah. Metode yang digunakan adalah melakukan sosialisasi dan melakukan praktik langsung pembuatan pupuk kompos dari sampah organic , tanah dan bioaktivator (cairan EM4) dalam wadah compost bag. Untuk menggerakkan ibu rumah tangga untuk langsung mempraktekkan diserahkan compost bag dan cairan EM4 sebagai sarana penunjang.Hasil dari kegiatan ini adalah meningkatnya kesadaran masyarakat terhadap kebersihan lingkungan, memberikan ketrampilan dalam pembuatan kompos yang dapat digunakan langsung untuk tanaman di pekarangan rumah dan jangka panjang dapat memberi nilai ekonomis untuk masyarakat. Kata kunci: pengelolahan sampah, pekarangan rumah, sampah organic, kompos, cairan EM4
Effect of green clam shells powder addition on properties biodegradable films of polyvinyl alcohol (PVA) Hendri Hestiawan; Yuzuar Afrizal; Junas Haidi; Candy Juyetzu
Jurnal POLIMESIN Vol 21, No 2 (2023): April
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i2.3261

Abstract

This paper presents an experimental study of the addition of green clam shells powder (GCSP) to the biodegradable film properties of polyvinyl alcohol (PVA). To get GCSP, the green clamp shell was immersed in a 50% NaOH solution for 2 hours, blended until the particle size passed 100 mesh, then heated at a temperature of 500 oC for 2 hours. The Biodegradable film characteristic was investigated by the addition of GCSP (2, 4, 8, and 10 %wt) in PVA suspension. PVA/GCSP biodegradable films were prepared by a casting solution method. The GCSP functional group's molecular chemical bond and structural analysis were tested using Fourier Transform Infrared (FTIR) and X-Ray Diffraction (XRD). To obtain the mechanical properties of biodegradable films, a tensile test was carried out. The results of the FTIR and XRD test showed that the alkali treatment or/and the calcination process affected the GCSP grain structure. SEM micrographs showed that the grain structure of GCSP which was treated with alkali or/and the calcination process had a more uniform and homogeneous size. The addition of GCSP to PVA was able to increase the tensile strength of the biodegradable film. Overall, the optimal addition of GCSP was 10 wt.% which was calcination treated in a PVA matrix with tensile strength, elongation at break, and Young's modulus of 170 MPa, 18%, and 1184 MPa, respectively
Co-Authors Ade Sri Wahyuni Adika Kurniawan Aditia Wiranata Agustin Gunawan Agustin Gunawan Anggita Yuliani Candy Juyetzu Elhusna Elhusna Fatmawati Fatmawati Fepy Supriani Hardiansyah Hardiansyah Hendri Hestiawan Junas Haidi Martin Lerry mawardi mawardi Mukhlis Islam Olandri Wijaya Rio Saputra Rizki Aidil Samsul Bahri