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Vera Agustriana Noorhidana
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Analisis Perbandingan Pengaruh Penambahan Serat Baja Karbon 3D Dramix dan Serat Kawat Bendrat Terhadap Kuat Tekan, Kuat Tarik Belah, dan Kuat Tarik Lentur Pada Beton Mutu Normal Riana, Netta; Noorhidana, Vera Agustriana; Irianti, Laksmi; Alami, Fikri
Jurnal Rekayasa Sipil dan Desain Vol. 10 No. 2 (2022): Edisi Juni 2022
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v10i2.2629

Abstract

AbstractIn general, the structural characteristics of concrete are that it has a high compressive strength but is weak in tensile strength. The aim of this study was to coMPare the effects of adding Dramix 3D carbon steel fiber and bendrat wire fiber on the compressive strength, split tensile strength, and flexural tensile strength in normal quality concrete. In this study, the addition of Dramix 3D carbon steel fiber and bendrat wire fiber with volume fractions of 0%, 1%, 1.5%, and 2% of the volume of the concrete mix was evaluated. The samples for this study were a cylinder with a diameter of 15 cm and a height of 30 cm for the compressive strength and split tensile strength tests, and a beam measuring 10 x 10 x 40 cm for the flexural tensile strength test. From the results of the study, it was found: (1) The compressive strength maximum occur of the addition of bendrat wire fiber at Vf 1% increased by 19.33% from the compressive strength of concrete at Vf 0%., (2) The split tensile strength maximum occur of the addition of 3D Dramix carbon steel fibers at Vf 2% increased by 88.38% from the split tensile strength of Vf 0% concrete., and (3) The flexural tensile strength maximum occur of the addition of Dramix 3D carbon steel fibers at Vf 2% increased by 465.63% from the flexural tensile strength of concrete at Vf 0%. Key words : Dramix 3D carbon stell fiber, bendrat wire fiber, compressive strength, split tensile strength, flexural tensile strength. AbstrakBeton mempunyai kuat tekan yang besar tetapi lemah terhadap kuat tarik. Tujuan dari penelitian ini adalah untuk mengetahui perbandingan pengaruh penambahan serat baja karbon 3D Dramix dan serat kawat bendrat terhadap kuat tekan, kuat tarik belah, dan kuat tarik lentur pada beton mutu normal. Pada penelitian ini, dilakukan penambahan serat baja karbon 3D Dramix dan serat kawat bendrat dengan volume fraksi sebesar 0%, 1%, 1,5% dan  2% dari volume adukan beton. Sampel pada penelitian ini berupa silinder dengan (diameter 15 cm dan tinggi 30 cm) untuk uji kuat tekan dan kuat tarik belah, dan balok berukuran (10 x 10 x 40 cm) untuk uji kuat tarik lentur. Dari hasil penelitian didapatkan: (1) Kuat tekan maksimum terjadi pada penambahan serat kawat bendrat pada Vf 1% mengalami peningkatan sebesar 19,33% dari kuat tekan beton Vf0%., (2) Kuat tarik belah maksimum terjadi pada penambahan serat baja karbon 3D Dramix pada Vf 2% mengalami peningkatan sebesar 88,38% dari kuat tarik belah beton Vf0%., dan (3) Kuat tarik lentur maksimumterjadi pada penambahan serat baja karbon 3D Dramix pada Vf 2% mengalami peningkatan sebesar 465,63% dari kuat tarik lentur beton Vf0%.Kata kunci : serat baja karbon 3D Dramix, serat kawat bendrat, kuat tekan, kuat tarik belah, kuat tarik lentur.
Pemanfaatan Limbah Plastik Bekas Gelas Kemasan Untuk Meningkatkan Kekuatan Campuran Beton Sebagai Bahan Rigid Pavement Calosa, Evanthe; Putra, Sasana; Noorhidana, Vera Agustriana; Karami, Muhammad
Jurnal Rekayasa Sipil dan Desain Vol. 10 No. 2 (2022): Edisi Juni 2022
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v10i2.2636

Abstract

Concrete is the main material of rigid pavement that can withstand compressive strength and weak to tensile strength. Flexural tensile strength on rigid pavement itself is a benchmark in concrete pavement. To increase the value of the flexural tensile strength can be done by adding fiber to the concrete mixture. The purpose of this study was to determine the effect of the addition of plastic waste from plastic packaging made of polypropylene on the compressive strength and flexural tensile strength of concrete.In this study, the addition of used plastic waste pieces from packaged glass used fractional volumes of 0%, 0.1%, 0.3%, 0.5%, and 0.7% of the volume of concrete mixture. The samples for this study were a cylinder with a diameter of 15 cm and a height of 30 cm for the compressive strength test and a beam measuring 15 x 15 x 60 cm for the flexural tensile strength test. The test was carried out after the concrete had been 28 days old. The result of this research is the compressive strength decreased along with the amount escalation of the fiber to the concrete mixture. The flexural tensile strength maximum occur of the addition of plastic fibers at 2% volume fraction increased by 23,75% compared to flexural tensile strength of normal concrete. As a result of adding plastic fibers to the concrete mixture, it also decreased the workability of the concrete mixture
Studi Analisis Gedung Bertingkat dengan Perbandingan SNI-1726-2012 dan SNI-1726-2019 Terhadap Rasio Tulangan (Studi Kasus : Rumah Susun Pasar Jumat Jakarta Selatan) Halawa, Vince Nukrisman; Isneini, Mohd; Noorhidana, Vera Agustriana; Husni, Hasti Riakara
Jurnal Rekayasa Sipil dan Desain Vol. 10 No. 3 (2022): Edisi September 2022
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v10i3.2711

Abstract

The design of building structures in Indonesia must be designed with the applicable earthquake regulations so that the building is resistant to earthquake loads. Over the course of time, the earthquake regulations were updated considering the large earthquakes that occurred in Indonesia still caused a lot of damage to building structures. The purpose of this study was to determine the difference between the response of the structure and the design of the structure after the SNI regulations were updated. The building being analyzed is the Pasar Jumat apartment in South Jakarta. The method used is the response spectrum method. The building was analyzed using the ETABS program given earthquake loads based on SNI-1726-2012 and SNI-1726-2019. Based on the results of the analysis, the value of the fundamental natural vibration period is not too different, the value of interstory drift between levels is below the interstory drift between permission levels and the value of the basic shear force has increased by 19.69%. While in the design of the structure, there is an increase in the ratio of reinforcement in the main beam by 10.61% at the support and 10% in the field. for secondary beam, the reinforcement ratio increased by 8.43% at the support and 10.52% in the field. While the column structure has increased by 2.84%.
Pengaruh komposisi penambahan serat polypropylene terhadap kuat tekan dan kuat lentur self compacting mortar (SCM) Suma, Damas Novalda; Noorhidana, Vera Agustriana; sebayang, surya; Isneini, Mohd.
Jurnal Rekayasa Sipil dan Desain Vol. 11 No. 1 (2023): Edisi Maret 2023
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v11i1.3019

Abstract

AbstractSelf compacting mortar is a mortar which is able to flow under its own weight and completely fill the formwork without the need for external compaction, while maintaining its homogeneity. This study aims to determine the effect of variations in the addition of polypropylene fiber to the compressive strength and flexural strength of self compacting mortar (SCM), as well as to determine the optimum variation of the addition of polypropylene fiber in mixed mortar. In this study, the test specimens were made with a water-cement factor of 0.4 and the ratio between cement and fine aggregate was 1:2.5 and the addition of 2% superplasticizer by weight of cement and the addition of polypropylene fibers with variations of 0%, 0.04%, 0.06%, 0.08%, 0.1% of the volume of the mortar test object. Tests were carried out on specimens aged 28 days. The results showed that the compressive strength of SCM experienced an optimum increase in the addition of 0.04% polypropylene fiber which was 34.81 MPa with an increase percentage of 14.07% of mortar without fiber, while the flexural strength of SCM increased with increasing variations of polypropylene fiber until the increase The optimum variation occurred at 0.1% polypropylene fiber, namely 11.72 MPa with a percentage increase of 26.05% from mortar without fiber. Key words : polypropylene fiber, superplasticizer, compressive strength, flexural strength.
Analisis Variasi Layout Shearwall Dengan SNI 1726-2019 Terhadap Perilaku Bangunan Bertingkat (Studi Kasus: Gedung Pelayanan Publik Satu Atap Bandar Lampung) Setiawan, Andi; Isneini, Mohd.; Noorhidana, Vera Agustriana; Husni, Hasti Riakara
Jurnal Rekayasa Sipil dan Desain Vol. 11 No. 2 (2023): Edisi Juni 2023
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v11i2.3171

Abstract

Earthquake resistant buildings are not designed only by strengthening the resistance of the structure, but are also designed to reduce earthquake forces. One of the structural reinforcement elements that can reduce earthquake forces is shearwall. The variation of shearwall layout will have a different effect on the performance level of the structure. This study aims to determine the performance level of the structure with a variety of shearwall layouts in a building structure model using the pushover analysis method. Determining the level of structural performance using pushover analysis is carried out using the help of structural analysis programs based on SNI 1726-2019, SNI 1727-2020, SNI 2847-2019 and ATC-40. From the research results it was found that the structural performance level according to ATC-40 (1996), for model 1 and model 6 were included in the damage control category, while for model 2, model 3, model 4 and model 5 were included in the immediate occupancy category. Placement of shearwall which has the optimum value according to ATC-40 for the X direction occurs in model 2 with the shearwall installed in an L shape which is placed near the center of mass of the building. Whereas in the Y direction it occurs in model 3 with the shearwall installed in an L shape which is placed away from the center of mass of the building. Key words : shearwall, model, structure performance level, pushover analysis.
Analisis Perbandingan Pengaruh Variasi Ukuran Panjang Pada Kawat Bendrat Terhadap Beton Konvensional Ristama, M Alvany Veschonanda; Isneini, Mohd; Noorhidana, Vera Agustriana; Widyawati, Ratna
Jurnal Rekayasa Sipil dan Desain Vol. 11 No. 3 (2023): Edisi September 2023
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v11i3.3637

Abstract

AbstrakBeton adalah material konstruksi yang terdiri dari campuran bahan-bahan seperti semen, air, dan agregat, yang digunakan dalam berbagai jenis infrastruktur. Beton memiliki nilai kuat tekan yang tinggi namun lemah terhadap gaya tarik. Penambahan kawat bendrat pada beton dilakukan untuk menaikkan nilai kuat tarik dan kuat lentur beton. Penelitian ini menggunakan volume fraksi 0%, 0,75% dan 1,5% dengan menggunakan variasi panjang tiap volume fraksi sebesar 30 mm, 50 mm, dan 70 mm dan bertujuan untuk menganalisis panjang kawat bendrat paling efektif sebagai bahan campuran beton. Pengujian dilakukan pada umur rencana 28 hari dan pengujian kuat tekan menggunakan sampel silinder dengan diameter 150 mm dan tinggi 300 mm sedangkan pengujian kuat tarik lentur menggunakan sampel balok dengan ukuran 100x100x400 mm. Pada kuat tekan penambahan serat kawat bendrat dinilai tidak efektif dan mengalami penurunan terkecil pada beton volume fraksi 0,75% panjang kawat bendrat 50 mm dengan penurunan sebesar 0,68%. Sedangkan pada kuat tarik lentur penambahan serat kawat bendrat dinilai efektif dan mengalami peningkatan terbesar sebesar 168,39% dari beton normal yaitu pada beton volume fraksi 1,5% dengan panjang kawat bendrat 50 mm.Kata kunci : beton, serat kawat bendrat, variasi panjang, kuat tekan, kuat tarik lentur.
Analisis Kombinasi Campuran Serat Baja dan Kawat Bendrat pada Beton Konvensional Rahmanisa, Laila Indah; Isneini, Mohd; Noorhidana, Vera Agustriana; Widyawati, Ratna
Jurnal Rekayasa Sipil dan Desain Vol. 11 No. 3 (2023): Edisi September 2023
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v11i3.3639

Abstract

AbstrakBeton konvensional adalah beton dengan bahan campuran yang terdiri dari semen, air, agregat kasar, dan agregat halus. Beton konvensional memiliki kelemahan, yaitu lemah terhadap tarik dan bersifat getas. Untuk mengatasi kuat tarik yang rendah, beton konvensional dapat dicampurkan dengan serat. Pada penelitian ini, dilakukan penambahan kombinasi campuran serat baja 3D Dramix dan serat kawat bendrat. Tujuan dari penelitian ini adalah mencari perbandingan campuran serat baja 3D Dramix dan kawat bendrat yang optimal, karena dengan mengetahui perbandingan campuran yang optimal maka dapat ditemukan formulasi terbaik dari kerja beton serta dapat menekan pengeluaran untuk kebutuhan material (low effort, high impact). Penelitian ini dilakukan dengan penambahan volume fraksi 0%, 1%, dan 1,5% dari volume adukan beton. Benda uji yang digunakan berupa silinder dengan ukuran diameter 150 mm dan tinggi 300 mm untuk kuat tekan, dan balok dengan ukuran (100 x 100 x 400) mm untuk kuat tarik lentur. Dari hasil penelitian telah didapat kesimpulan : (1) Dari campuran kombinasi 3D Dramix dan kawat bendrat didapat perbandingan yang memberikan hasil paling optimum untuk menaikkan nilai kuat tekan yaitu pada kadar variasi 3D Dramix 0,5% dan kawat bendrat 0,5% di volume fraksi 1%. (2) Dari campuran kombinasi 3D Dramix dan kawat bendrat didapat perbandingan yang memberikan hasil paling optimum untuk menaikkan nilai kuat tarik lentur yaitu pada kadar variasi 3D Dramix 0,5% dan kawat bendrat 1% di volume fraksi 1,5%.  Kata kunci : Serat baja 3D Dramix, kawat bendrat, kuat tekan, kuat tarik lentur.
Analisis Faktor-faktor Yang Mempengaruhi Mutu Beton Ready Mix Suri, Yola Andara Pratami; Noorhidana, Vera Agustriana; Helmi, Masdar; Isneini, Muhammad; Wahono, Endro Prasetyo
Teras Jurnal : Jurnal Teknik Sipil Vol. 14 No. 1 (2024): Volume 14 Nomor 1, Maret 2024
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v14i1.1049

Abstract

Abstrak Batching Plant sebagai pengolah beton ready mix untuk pembangunan jalan. Dahulu terjadi penurunan mutu beton laboratorium dan lapangan. Akhirnya melatar belakangi penelitian dengan tujuan menganalisis faktor penyebab penurunan mutu seperti; standarisasi SNI material, waktu tempuh beton ke lapangan, perlakuan sampel, komposisi beton. Langkah yang digunakan ialah pengujian material, uji slump dan suhu campuran di laboratorium dan lapangan, mencatat waktu perjalanan dan tuang beton, pembuatan sampel lapangan dan laboratorium, pembuatan sampel khusus, pengujian kuat tekan beton mutu fc10 MPa dan kuat tarik lentur beton mutu Fs4,5 MPa usia 7 dan 28 hari, menggunakan Statistical Quality Control (SQC). Hasil kuat tekan dan kuat tarik lentur sampel laboratorium dan lapangan tidak konstan bahkan berada dibawah nilai (LCL). Penyebabnya pasir dengan kadar lumpur diatas 5%. Mengatasinya dengan penambahan Admixture, admixture Naptha E-121 0,9% menjadi 1,2%, Naptha RD-31 0,2% sampel balok dan Naptha E-121 0,3% menjadi 0,6%, Naptha RD-31 0,2% silinder. Kata kunci: Beton, Statistical Quality Control, Admixture  Abstract Batching Plant as a readymix concrete processor for road construction. In the past, there was a decline in the quality of laboratory and field concrete. Finally, the background for research with the aim of analyzing the factors causing quality decline such as; SNI standardization of materials, concrete travel time to the field, sample treatment, concrete composition. The steps used are material testing, slump testing and mixture temperature in the laboratory and field, recording travel and pouring times for concrete, making field and laboratory samples, making special samples, testing the compressive strength of FC'10 MPa quality concrete and the flexural tensile strength of Fs quality concrete. '4.5 MPa aged 7 and 28 days, using Statistical Quality Control (SQC). The results of the compressive strength and flexural tensile strength of laboratory and field samples are not constant and are even below the (LCL) value. The cause is sand with a mud content above 5%. Overcome this by adding admixture, admixture Naptha E-121 0.9% to 1.2%, Naptha RD-31 0.2% for beam samples and Naptha E-121 0.3% to 0.6%, Naptha RD-31 0 .2% cylinder. Keywords: Concrete, Statistical Quality Control, Admixture
Co-Authors Agustin, Cahyani Putri Andhini, Vania Meutia Andi Setiawan Anggraeni, Sylvia Dewi Calosa, Evanthe DWSBU, Chatarina Niken Eddy Purwanto Endro Prasetyo Wahono Fikri Alami Gusti, Melinda Halawa, Vince Nukrisman Hasti Riakara Husni Hussein, Imam Isneini, Mohd Isneini, Muhammad karami, muhammad Laksmi Irianti Laksmi Irianti Irianti Masdar Helmi Mohd. Isneini Putra, Asyrofi Miranda Putra, Mayka Purnama Putri, Nur Mila Putri, Yoleta Tri Rahmanisa, Laila Indah Ratna Widyawati Riana, Netta Ristama, M Alvany Veschonanda Sahast, Corry Jayaputri Sasana Putra, Sasana Suma, Damas Novalda Suri, Yola Andara Pratami Surya Sebayang Tas'an Junaedi Junaedi Ulini'am, Adipati Syahidullah Utami, Tri Ratna Yonanda, Prima Sandy