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Perilaku Kekuatan Beton dengan Partikel Gelas dan Karet Ban Bekas Sebagai Pengganti Pasir Alam Sandy Immanuel Yansiku
Jurnal Teknik Sipil dan Lingkungan Vol. 3 No. 1: April 2018
Publisher : Departemen Teknik Sipil dan Lingkungan, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (491.384 KB) | DOI: 10.29244/jsil.3.1.1-10

Abstract

This paper presents the results of experimental investigation into the behaviour of concrete mixed with recycled-based materials as partial replacement of natural sand. Various properties: compressive, split tensile and flexural strength were investigated through either single or combination replacement categories in which glass sand, rubber sand, and recycled concrete aggregate were specifically proportioned. Test results indicate that certain replacement types of possibly achieve sufficient strength and physical behaviour to replace normal concrete. Single replacements typically generate higher compressive, tensile and flexural strength than combination types. Concrete with lower content of alternative material exhibited comparable strength relative to the original concrete. The workability of higher angular surface material such as glass sand and rubber sand generated higher workability. Keywords: concrete strength; glass; rubber; particles; replacement
TERAK NON-BESI SEBAGAI TAMBAH SEMEN PORTLAND PADA BETON STRUKTURAL Yansiku, Sandy I.; Duran, Yohanes G.G.L.
Jurnal Teknik Sipil dan Arsitektur Vol 30 No 1 (2025): JURNAL TEKNIK SIPIL DAN ARSITEKTUR
Publisher : Fakultas Teknik Universitas Tunas Pembangunan Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36728/jtsa.v30i1.4453

Abstract

The degradation in environmental grade and generating concrete with low level of ordinary Portland cement have emerged intention for researchers to produce concrete with slag-based substitutional material. The utilization of slag as a partial substitution of cementitious material in concrete has encountered the need of more sustainable materials in the concrete technology. In contrast, the application of non-ferrous slag (NFS) as substitution of the ordinary Portland cement is not well focused despite the largely global slag deposit and the application in concrete technology. Worldwidely immense deposit of various non-ferrous slag from mining and manufacturing process can be used in generating high performance concrete. On that account, this paper provides a critical review of recent studies concerning the non-ferrous based slag as the substitution of regular Portland cement. Production techniques, properties and the applications of NFS for high strength concrete are also examined. Cement with nickel and copper slag addition with high silica content has the potential to increase concrete durability with proper curing method due to better hydration process and low porosity. The maximum 15% non-ferrous slag addition in total cement weight at high water cement ratio increases concrete compressive strength by up to 30%. Substitution of non-ferrous slag for the ordinary Poertland cement in concrete has great potential to overcome stock waste issues, to reduce carbon dioxide emission and consequently reduce global energy consumption as an environmentally friendly approach.
TERAK NON-BESI SEBAGAI TAMBAH SEMEN PORTLAND PADA BETON STRUKTURAL Yansiku, Sandy I.; Duran, Yohanes G.G.L.
Jurnal Teknik Sipil dan Arsitektur Vol. 30 No. 1 (2025): JURNAL TEKNIK SIPIL DAN ARSITEKTUR
Publisher : Fakultas Teknik Universitas Tunas Pembangunan Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36728/jtsa.v30i1.4453

Abstract

The degradation in environmental grade and generating concrete with low level of ordinary Portland cement have emerged intention for researchers to produce concrete with slag-based substitutional material. The utilization of slag as a partial substitution of cementitious material in concrete has encountered the need of more sustainable materials in the concrete technology. In contrast, the application of non-ferrous slag (NFS) as substitution of the ordinary Portland cement is not well focused despite the largely global slag deposit and the application in concrete technology. Worldwidely immense deposit of various non-ferrous slag from mining and manufacturing process can be used in generating high performance concrete. On that account, this paper provides a critical review of recent studies concerning the non-ferrous based slag as the substitution of regular Portland cement. Production techniques, properties and the applications of NFS for high strength concrete are also examined. Cement with nickel and copper slag addition with high silica content has the potential to increase concrete durability with proper curing method due to better hydration process and low porosity. The maximum 15% non-ferrous slag addition in total cement weight at high water cement ratio increases concrete compressive strength by up to 30%. Substitution of non-ferrous slag for the ordinary Poertland cement in concrete has great potential to overcome stock waste issues, to reduce carbon dioxide emission and consequently reduce global energy consumption as an environmentally friendly approach.
Experimental and Confining Pressure Analysis of Steel Clamp Confined Unreinforced Concrete Subjected to Axial Concentric Load Yansiku, Sandy I.; Chandra, Jimmy
Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Vol 10 No 2 (2025): SEPTEMBER
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/cvl.v10i2.1453

Abstract

Vertical cracks and spalling of the concrete cover in reinforced concrete structures are examples of failure modes of concrete columns due to repeated earthquake loads. Strengthening methods have been introduced including external jacketing using costly carbon FRP. This study investigated external strengthening of cylindrical concrete using low-cost thin steel confining sheets subjected to concentric axial loads. The experimental works in this study tested the tensile strength of the confining steel elements, the compressive strength of unconfined and confined cylindrical concrete. The composition of the steel confining elements is positioned in such that it could generate an optimal confinement effect and prevent local buckling. This study also developed the formulation of the confining stress and ultimate axial load based on the test results of the current study and past research data. The results showed that the use of steel clamp elements improves the axial strength and axial deformation of cylindrical concrete columns by over 200% without buckling of the clamp elements. The external confinement method can reduce vertical cracks and strain localization that usually occur in conventional cylindrical concrete. The proposed formulation of the confining stress and the ultimate axial load provided accurate results compared to the experimental results.
Perilaku Kekuatan Beton dengan Partikel Gelas dan Karet Ban Bekas Sebagai Pengganti Pasir Alam Yansiku, Sandy Immanuel
Jurnal Teknik Sipil dan Lingkungan Vol. 3 No. 1: April 2018
Publisher : Departemen Teknik Sipil dan Lingkungan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsil.3.1.1-10

Abstract

This paper presents the results of experimental investigation into the behaviour of concrete mixed with recycled-based materials as partial replacement of natural sand. Various properties: compressive, split tensile and flexural strength were investigated through either single or combination replacement categories in which glass sand, rubber sand, and recycled concrete aggregate were specifically proportioned. Test results indicate that certain replacement types of possibly achieve sufficient strength and physical behaviour to replace normal concrete. Single replacements typically generate higher compressive, tensile and flexural strength than combination types. Concrete with lower content of alternative material exhibited comparable strength relative to the original concrete. The workability of higher angular surface material such as glass sand and rubber sand generated higher workability. Keywords: concrete strength; glass; rubber; particles; replacement
KARAKTERISTIKKEKUATAN BETON DENGAN GLASS POWDER, FLY ASH DAN GBFS SEBAGAI MATERIAL PENGGANTI SEMEN Sandy I. Yansiku
SIARTEK - Jurnal Teknik Sipil dan Arsitektur Vol 2 No 2 (2016): SIARTEK - Jurnal Teknik Sipil dan Arsitektur
Publisher : Program Studi Teknik Sipil

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Abstract

Penelitian ini menyajikan hasil investigasi laboratorium menyangkut perilaku beton yang dicampur dengan material bekas pakai sebagai pengganti sebagian volume semen beton konvensional.Kuat desak, kuat tarik, dan kuat geser diuji pada campuran beton baik penggantian material tunggal maupun kombinasinya di mana glass powder (bubuk kaca), fly ash (abu terbang) dan Granulated Blast Furnace Slagdicampur dalam adukan beton dengan proporsi tertentu.Hasil uji coba menunjukkan bahwa penggantian semen dalamjumlah tertentu dengan tiga jenis material tersebut mampu mencapai kekuatan yang bersaing serta perilaku fisik yang memadai dalam mengganti beton normal. Penggantian material tunggal secara tipikal menghasilkan kuat tekan, kuat tarik dan kuat geser yang lebih tinggi dibandingkan dengan penggantian semen dengan kombinasi lebih dari satu material. Beton dengan kandungan alternatif material yang lebih rendah menunjukkan kekuatan yang bersaing relatif terhadap beton normal.
IMPLIKASI FREE AIRBLAST DAN FULLY-VENTED BLAST TERHADAP TEKANAN DAN IMPULS PERMUKAAN ELEMEN STRUKTUR Sandy I. Yansiku; Christian L. Keraf
SIARTEK - Jurnal Teknik Sipil dan Arsitektur Vol 3 No 1 (2017): Jurnal Teknik Sipil dan Arsitektur
Publisher : Program Studi Teknik Sipil

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Abstract

Penelitian ini menginvestigasi pengaruh ledakan ganda terhadap elemen struktur melalui sebuah studi parametrik. Studi kasus dilakukan dengan skenario ledakan udara bebas dan ledakan dalam ruang tertutup terbatas. Analisa beban ledakan mengadopsi metode Unified Facilities Criteria (UFC). Hasil studi menunjukkan bahwa pada skenario free airblast ledakan ganda menimbulkan refleksi tekanan dan impuls yang lebih tinggi dibandingkan satu ledakan, sedangkan dua ledakan menghasilkan tekanan dan impuls yang lebih berarti dibandingkan tiga ledakan sebagai akibat dari kontribusi jarak dan posisi ledakan. Pengaruh ledakan ganda tidak signifikan pada skala jarak lebih besar 2 m/kg1/3. Ukuran mesh dan adanya logaritma natural secara proporsional mempengaruhi output tekanan dan impuls. Pengaruh ruang antar ledakan lebih signifikan pada tekanan daripada impuls karena makin besar ruang antar ledakan dapat mengurangi interaksi antar gelombang ledakan. Jumlah ledakan tidak berdampak pada tekanan apabila rasio S/R lebih besar 2 dan oleh karena itu dampak yang ditimbulkan mendekati ledakan tunggal. Fully-vented blast menghasilkan tekanan refleksi puncak rerata sebesar 1710 Psi atau 11,78 MPa dan impuls rerata sebesar 112 psi-ms/lb1/3 atau 4,828 MPa-ms dalam durasi 0,82 ms.
EVALUASI KAPASITAS GESER PANEL DINDING BATA TAK BERTULANG AKIBAT BEBAN GEMPA Sandy I. Yansiku; Slavator D. Dala
SIARTEK - Jurnal Teknik Sipil dan Arsitektur Vol 4 No 1 (2018): SIARTEK - Jurnal Teknik Sipil dan Arsitektur
Publisher : Program Studi Teknik Sipil

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Abstract

Penelitian ini menginvestigasi perilaku dinding pasangan bata merah tanpa tulangan terhadap kapasitas geser bidang akibat beban gempa berdasarkan Standar Australia. Distribusi beban gempa sebagai beban yang diperlukan dan kapasitas geser bidang segmen dinding dinilai melalui model bangunan sederhana dari pasangan bata merah tak bertulang. Asesmen numerik menunjukkan bahwa sebagian besar panel mengalami kegagalan meskipun rasio kapasitas-permintaan lebih dari 1. Panel nomor 9, 7 dan 4 memiliki kapasitas geser yang lebih tinggi dibandingkan dengan panel lainnya. Evaluasi menunjukkan kegagalan pada panel dinding nomor 2 dan nomor 6 diakibatkan oleh lebih tingginya aspek rasio yang menghasilkan 60% kapasitas di bawah kekuatan yang diperlukan.
REDESAIN STRUKTUR GEDUNG KAMPUS STFK LEDALERO 3 LANTAI MENGGUNAKAN KONSTRUKSI BAJA Ignasius Anwal Mo'an Hure; Firnimus Konstantinus Bhara; Sandy I. Yansiku
SIARTEK - Jurnal Teknik Sipil dan Arsitektur Vol 7 No 1 (2021): SIARTEK - Jurnal Teknik Sipil dan Arsitektur
Publisher : Program Studi Teknik Sipil

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Abstract

Steel structures are metal structures made of structural steel components that are connected to carry loads and provide full and even stiffness and strength. The STFK Ledalero Campus Building is a multi-story building whose main structure uses a reinforced concrete structure and will be re-planned to use steel construction. This campus building is located in earthquake area 5 and will be used as offices and classrooms, so the planning for this building must meet excellent safety criteria by applicable regulations. In planning this steel structure, current standard regulations are used, namely SNI 1729:2020 which refers to the LRFD method with several load combinations by the provisions in SNI-1726-2019, SNI 1727:2020, and PPPURG 1987. Structural analysis uses the help of SAP 2000 v.14, to determine the magnitude of the moment, shear force, and axial force values in the upper structure of the building, namely the beams and columns, against the working loads. The results of the analysis of the redesign of the 3-story STFK Ledalero campus building using BJ 37 showed that the steel profile dimensions for the Main Column used WF 400x400x13x21, the Terrace Column used WF 350x350x12x19, the main beam used WF 450x200x9x14 and for the child beam used WF 350x175x7x11, the roof main beam used WF 294x20 0x8x12, Block Roof rafters use WF 244.175.7.11, Terrace Beams use WF 244.175.7.11, the conclusion is that the structure is safe against moments, shear forces and axial forces.
Analisis Respon Getaran Bangunan Akibat Beban Gempa Kobe: (Studi Kasus SMAK Sta. Maria Monte Carmelo) Yosefina Maria Edo Beribe; Firnimus K. Bhara; Sandy I. Yansiku
SIARTEK - Jurnal Teknik Sipil dan Arsitektur Vol 11 No 2 (2025): SIARTEK - Jurnal Teknik Sipil dan Arsitektur
Publisher : Program Studi Teknik Sipil

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Abstract

Gempa bumi merupakan salah satu bencana alam yang dapat menimbulkan kerusakan signifikan pada struktur bangunan, terutama jika struktur tidak dirancang dengan mempertimbangkan ketahanan terhadap beban gempa. Mengingat sifat gempa yang tidak dapat diprediksi baik dari segi waktu maupun lokasi, diperlukan analisis numerik yang mampu mensimulasikan respons struktur terhadap beban dinamis akibat gempa. Penelitian ini bertujuan untuk mengkaji respon getaran bangunan SMAK Sta. Maria Monte Carmelo terhadap beban gempa Kobe 1995 di Jepang. Analisis struktur yang dilakukan menggunakan metode analisis riwayat waktu (time history analysis) dengan bantuan perangkat lunak SAP2000 untuk melihat bagaimana pengaruh beban gempa Kobe terhadap struktur bangunan selama gempa berlangsung. Hasil output SAP2000 kemudian diolah menggunakan program Origin 2018 untuk menghitung respon getaran bangunan yang berupa perpindahan, kecepatan dan percepatan. Hasil penelitian menunjukkan, nilai perpindahan maksimum akibat gempa arah X adalah sebesar 164 mm dan percepatan maksimum sebesar 2.442709 mm/s2. Sedangkan besarnya perpindahan maksimum akibat gempa arah Y adalah sebesar 145 mm dan percepatan sebesar 2.443 mm/s2. Nilai simpangan antar tingkat untuk masing–masing tingkat adalah tingkat 1 (68.2583 mm), tingkat 2 (159.0367 mm), dan puncak struktur (53.333 mm). Nilai simpangan antar tingkat untuk tingkat 1 dan 2 sudah melebihi nilai simpangan antar tingkat izin berdasarkan SNI 1726:2019 yaitu tingkat 1 (37.5 mm) dan tingkat 2 (97.5 mm), sedangkan untuk puncak struktur masih dibawah simpangan izin yaitu 150 mm. Hal ini dapat menyebabkan kerusakan pada struktur bangunan sehingga perlu adanya perkuatan pada bangunan.