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PENGARUH PEMADATAN BETON SEGAR TERHADAP KUAT TEKAN BETON Lina Flaviana Tilik; Ika Sulianti
PILAR Vol. 7 No. 1 (2012): PILAR 07032012
Publisher : Politeknik Negeri Sriwijaya

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Abstract

Concrete is construction material which frequently used in the field of civil engineering. In constructing process, concrete material is a part of building structure with some superiorities, among others, are: high compressive strength, being able to be formed as needed, no serious maintenance needed, and relatively fireproof and weatherproof. Various studies and experiments in the field of concrete as part of efforts to improve the quality of concrete. One way to increase the strength of concrete is to increase the compacting, which minimizes pores or cavities formed in the concrete. The additive material used in this study is fly ash. Fly ash is a waste of coal burning. The fly ash in this study was taken from PLTU Bukit Asam Tanjung Enim. The type of fly ash used is fly ash F class, which is the result of burning of coal of anthracite/bituminous with low content of CaO, less than 10%.  Maximum density of concrete can be attained by compacting the fresh concrete. The main goal of compaction of the fresh concrete is to eliminate air cavities and to achieve maximum density. The concrete compressive strength will increase if the density of concrete also increases. The compaction of 75 kg / cm ² with no fly ash added   generates  the strength of compressive of concrete  41.08 MPa. The greater compaction of fresh concrete is given, the more compacted the concrete will be, surely the  weight of the concrete content will get heavier. This is because the concrete that has been compacted  will be more compacted, so that air pores in the concrete will be smaller than normal concrete. The maximum weight of concrete of compaction   75 kg / cm ² with no fly ash added is  2.518 ton / m³. In this study the crack tend to form columnar type.
Analisis Kelayakan Finansial Internal Rate of Return (IRR) dan Benefit Cost Ratio (BCR) pada Alternatif Besaran Teknis Bangunan Pasar Cinde Palembang Ika Sulianti; Lina Flaviana Tilik
PILAR Vol. 8 No. 1 (2013): PILAR 08032012
Publisher : Politeknik Negeri Sriwijaya

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This paper discusses the feasibility analysis of financial internal rate of return (IRR) and benefit cost ratio (BCR) on Cinde market which is one of the oldest markets in Palembang. Feasibility analysis  is done by creating two design alternatives which  were different  from existing alternative and assumes revenues received later. By creating different alternatives, land area, kiosks and parking lot,  alternative A has a 26,08% IRR and BCR 1.18. This alternative makes buyers much easier to go directly to the floor or parking lot they want to go to. Effect of technical quantities of market building will greatly affect the financial feasibility with reference to the existing standard.
KAJIAN PENERAPAN KESEHATAN DAN KESELAMATAN KERJA (K3) DALAM PROSES BELAJAR MENGAJAR DI BENGKEL DAN LABORATORIUM POLITEKNIK NEGERI SRIWIJAYA Indrayani INDRAYANI; Ika Sulianti
PILAR Vol. 10 No. 1 (2014): PILAR 10032014
Publisher : Politeknik Negeri Sriwijaya

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Aspect of Health Safety and Environment (K3) must be focused on education world, one of the place is Politeknik Negeri Sriwijaya (Polsri), a university located at Palembang that mainly focus on practice before theory. The practiced is done at workshop and laboratory. To prevent any accident, Health Safety and Environment (K3) application should be studied on teaching and learning process at workshop or laboratory of Polsri. Responses from correspondences was taken by questioners towards lectures, technicians, and students majoring Civil Engineering, Chemical Engineering and Mechanical Engineering, and later analyzed by Likert Scale.The grade results of Health Safety and Environment (K3) knowledge from lectures, technicians, students at workshop averaging on A and B range is lower than 50%. It shows that Health Safety and Environment (K3) knowledge must be increased especially on Engineering Major. The result of Health Safety and Environment (K3) equipments used by lectures or technicians is lower than 50% also during teaching and learninprocess, in the contrary Health Safety and Environment (K3) equipments used by students at workshop and laboratory is more than 50%. It is good if 100% always used by them to prevent sickness and accidentbecause of works. The result of Health Safety and Environment (K3) management application at workshopand laboratory is lower than 40% from lectures and technicians, and the result by students is lower than 50%. Students agree that Health Safety and Environment (K3) management already conducted at workshop or laboratory. Moreover, review and management of Health Safety and Environment (K3) at workshop and laboratory still need to be improved.
PENGARUH PERUBAHAN UKURAN MAKSIMUM AGREGAT KASAR TERHADAP JUMLAH SEMEN UNTUK PEMBUATAN BETON SCC DENGAN BAHAN TAMBAH SP430 DAN RP260 Amiruddin Amiruddin; Ibrahim Ibrahim; Ika Sulianti
PILAR Vol. 10 No. 2 (2014): PILAR 0902014
Publisher : Politeknik Negeri Sriwijaya

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Perkembangan teknologi beton saat ini menuju ke beton yang memiliki mutu yang tinggi dan juga memiliki kinerja tinggi (workability rendah). Beton jenis ini dikenal sebagai beton yang dapat memadat sendiri (SCC: Self Compacting Concrete) yang saat ini telah dikenal luas di Jepang, Eropa dan Amerika.Untuk menunjang kinerja beton menjadi tinggi, maka digunakan ukuran agregat kasar yang lebih kecil (maksimum 10 mm) dan untuk mendapatkan workability dan viscositas yang baik dibutuhkan  penambahan aditif.Pada penelitian ini dihasilkan diantaranya pada perubahan ukuran agregat menjadi maksimum 10 mm maka dibutuhkan penambahan semen sebanyak 15%. Untuk penyesuaian komposisi sesuai syarat komposisi  beton SCC maka dibutuhkan penambahan semen menjadi total 22%, serta untuk memenuhi workability yang rendah dibutuhkan penambahan aditif jenis RP260 dan SP430 yang masing – masing 1,5 lt/m3 beton.
PERBANDINGAN METODE PEMBEBANAN VAKUM DENGAN PRAPEMBEBANAN UNTUK MEMPERCEPAT PROSES KONSOLIDASI ( 17-23 ) Metri Harissa; Mutiara FitriWahyu Ningrum; Sukarman Sukarman; Ika Sulianti
PILAR Vol. 13 No. 2 (2018): Pilar: September 2018
Publisher : Politeknik Negeri Sriwijaya

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Palembang Toll Development Project - Simpang Indralaya is built on swamp land. The subgrade of this road is soft clay soil that has low bearing capacity of soil. Low bearing capacity of the soil will cause severe damage to the pavement on the soil heap. Therefore it is necessary to strengthen the base soil to be able to withstand and avoid sliding because it does not decrease.In this final project, there will be comparative analysis of 2 (two) alternatives to improve the embankment in reaching the same degree of consolidation. The first alternative is traditional preloading method and second alternative is vacuum preloading method.From the calculation results, obtained by using vacuum preloading method, the time required to achieve the same degree of consolidation can be shorter than the traditional preloading method.
PENGARUH LIMBAH PLASTIK LDPE TERHADAP CAMPURAN ASPHALT CONCRETE– BASE COURSE (AC–BC) DENGAN METODE MARSHALL ( 21-28 ) Ika Sulianti; M. Sazili Harnawansyah; Merry Andika Putri; Abdul Haris Chudori
PILAR Vol. 14 No. 1 (2019): Pilar: Maret 2019
Publisher : Politeknik Negeri Sriwijaya

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The purpose of this study is to find out whether the addition of plastic waste Low Density Polytlene (LDPE) as a alternative subsitution of Marshall characteristic on AC-BC mixture. First study done by made sample, the optimum asphalt contentused is  5,75%, and then made sample use plastic waste contenct was 10%, 11%, 12%, 13%, and 14%. The best result of Marshall Test was obtained at 14%, while VIM and VFA out of range of spesification.
Karakteristik Marshall Pada Campuran Asphalt Concrete – Wearing Course (AC-WC) Dengan Penambahan Styrofoam Ika Sulianti; Ibrahim Ibrahim; Agus Subrianto; Adelia Monita; Medici Medici
FORUM MEKANIKA Vol 8 No 2 (2019): JURNAL FORUM MEKANIKA
Publisher : Sekolah Tinggi Teknik - PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (497.918 KB) | DOI: 10.33322/forummekanika.v8i2.653

Abstract

Styrofoam waste presents the environment issue because it is difficult to decompose. As an effort to recycle this pollutant, styrofoam can be utilized as an additive in asphalt concrete mixture. The use of additives aims to create a flexible pavement layer having good performance and meet the requirements. The purpose of this study is to find out whether the addition of styrofoam can improve the quality of asphalt mixtures, and look for alternative additives that can increase asphalt pavement performance. In this study, researchers used food container styrofoam as an addition and incorforated into Asphalt Concrete Wearing Course (AC-WC) mixture. The styrofoam content was 6.5%; 6.75%; 7% ; 7.25%; and 7.5% of asphalt weight. The optimum asphalt contentused is 5.5%. The value of the optimum stability was 3126,002 kg, found at 7.25% of styrofoam content. The best results of Marshall test was obtained at 6.5% of styrofoam content with stability value 1362,045 kg, VIM value 4,96%, VMA 15,025%, VFA 67,800%, flow 3,44 mm, and MQ 416,338 kg / mm.
Perbandingan Penambahan Serat Pada Mortar Normal dan Mortar Geopolimer Ika Sulianti; Indrayani Indrayani; Agus Subrianto; Amiruddin Amiruddin; Ahmad Ferdinan; Juradil Rudini
FORUM MEKANIKA Vol 10 No 2 (2021): JURNAL FORUM MEKANIKA
Publisher : Sekolah Tinggi Teknik - PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33322/forummekanika.v10i2.1479

Abstract

Infrastruktur yang dibangun sampai pada saat ini mengalami perkembangan dalam mengejar ketertinggalan dan meningkatkan daya saing nasional. Infrastruktur yang dibangun pada pelaksanaannya harus ramah terhadap lingkungan agar tidak menyebabkan pengaruh negatif bagi lingkungan sekitar dan dapat berkelanjutan sehingga banyak manfaat yang diperoleh dari pembangunan dapat dirasakan oleh generasi yang akan datang. Pada penelitian ini sebagai perbandingan yaitu menggunakan serat fiber yang ditambahkan pada mortar normal dan mortar geopolymer. Metode yang digunakan dalam pengujian mortar geopolymer dan mortar semen ini menggunakan acuan Standar Nasional Indonesia (SNI) untuk pengujian bahan dan sampel. Campuran alkali Natrium Silikat (Na2SiO3) dan Natrium Hidroksida (NaOH) digunakan pada mortar geopolimer dengan perbandingan 5:1 yang dilakukan pada umur 7,14, dan 28 hari. Hasil pengujian kuat tekan mortar didapatkan nilai kekuatan mortar normal menggunakan serat fiber meningkat yaitu 22,98 Mpa maka mortar tersebut termasuk mortar type M , dan pada mortar geopolymer menggunakan serat fiber meningkat yaitu 6,86 Mpa maka mortar tersebut termasuk mortar type N. Kenaikan kuat tekan mortar normal dengan menggunakan serat fiber ini sebesar 1% dan kenaikan kuat tekan mortar geopolymer dengan menggunakan serat fiber ini sebesar 100%.
DISEMINASI WEB GIS SISTEM PELAPORAN DAN PEMETAAN KERUSAKAN JALAN KOTA PALEMBANG Indrayani Indrayani; Andi Herius; Kosim Kosim; Norca Praditya; Ika Sulianti
JURNAL PENGABDIAN MANDIRI Vol. 1 No. 6: Juni 2022
Publisher : Bajang Institute

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Abstract

Seiring berjalannya waktu kondisi infrastruktur jalan tentunya akan mengalami penurunan. Kerusakan jalan secara dini dapat ditindaklanjuti jika masyarakat ikut berperan aktif untuk segera melaporkan apabila terjadi kerusakan jalan. Untuk itu diperlukan perangkat yang dapat memudahkan sistem pelaporan dan pemetaan kerusakan jalan yang ada sehingga kerusakan jalan dapat langsung ditangani. Sosialiasi sistem pelaporan kerusakan jalan berbasis WEB memberikan kemudahan kepada masyarakat untuk melaporkan kerusakan jalan yang ada dan menandai koordinat lokasi terjadinya kerusakan jalan. Dengan adanya sistem pelaporan dan pemetaan kerusakan jalan ini maka akan membantu pemerintah kota Palembang melalui Dinas PUPR kota untuk mengevaluasi kondisi kerusakan jalan di Kota Palembang dalam satu sistem yang terintegrasi. Dinas PUPR Kota Palembang menyambut baik kegiatan “Diseminasi WEB GIS Sistem Pelaporan dan Pemetaan Kerusakan Jalan Kota Palembang”. Dari diseminasi ini diharapkan staf PUPR Kota Palembang yang telah mengikuti diseminasi dapat meneruskannya kepada seluruh masyarakat di kota Palembang.
Co-Authors Abdul Haris Chudori Adelia Monita Agus Subrianto Ahmad Ferdinan Amiruddin . Amiruddin Amiruddin Andi Herius Ibrahim Ibrahim Ibrahim Ibrahim INDRAYANI INDRAYANI INDRAYANI INDRAYANI Juradil Rudini Kosim Kosim M. Sazili Harnawansyah Medici Medici Merry Andika Putri Metri Harissa Mutiara FitriWahyu Ningrum Norca Praditya Sukarman Sukarman Tilik, Lina Flaviana