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All Journal MAKNA: Jurnal Kajian Komunikasi, Bahasa dan Budaya MEDIA KOMUNIKASI TEKNIK SIPIL Jurnal IPTEK Civil Engineering Journal Jurnal Aplikasi Teknik Sipil Jurnal Rekayasa Sipil Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Jurnal Teknik Sipil Jurnal Profesi Insinyur Universitas Lampung Adpebi International Journal of Multidisciplinary Sciences Jurnal Teknik Sipil Karaton: Jurnal Riset dan Inovasi Sumenep
Budi Suswanto
Jurusan Teknik Sipil, Institut Teknologi Sepuluh Nopember, Kampus ITS Sukolilo Surabaya
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Journal : Jurnal IPTEK

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Influence of Polymer Superplasticizers Usage on Workability and Compressive Strength of 30 MPa and 40 MPa Concrete Iranata, Data; Suswanto, Budi; Septiarsilia, Yanisfa
Jurnal IPTEK Vol 28, No 1 (2024): May
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2024.v28i1.5283

Abstract

The advancement of technology has provided various alternatives to address limitations in concrete construction. One effective method for enhancing the quality of concrete is by introducing additional materials, known as admixtures, during the concrete production phase. One such type of admixture that can significantly improve concrete quality is superplasticizer. The primary principle behind the use of superplasticizer is to create a repelling force between cement particles to prevent clumping, which can lead to the formation of air voids in the concrete. This, in turn, can reduce the strength or quality of the concrete. In this research, the focus will be on the use of concrete admixtures, specifically superplasticizer, to enhance concrete workability. One product of superplasticizer is Sika Viscocrete 3115 N, which will be used in this study. Superplasticizers like Sika Viscocrete 3115 N play a crucial role in improving the flow and workability of concrete mixes, making them easier to handle and place during construction. This leads to more efficient and high-quality concrete structures. The target compressive strengths are 30 MPa and 40 MPa with variations in the percentage of superplasticizer admixture usage at 0%, 0.25%, 0.5%, and 0.75%. The testing methods used to determine the workability value are the slump test and the slump flow test, while the compressive strength test is conducted using a compression testing machine at the Advanced Concrete Materials and Computational Mechanics Laboratory, Department of Civil Engineering, ITS. The study concludes that the addition of superplasticizer can enhance the workability of concrete but cannot optimally increase compressive strength. Additionally, different planned compressive strengths with the same percentage variation exhibit different trends. The addition of 0.25%-0.5% superplasticizer in both planned strengths still yields compressive strength above the planned levels, despite the decrease.
Identification of Structural Damage in Frame Bridge Using Mode Shape Curvature: Simulation on Laboratory-Scale Frame Bridge Irawan, Djoko; Suswanto, Budi; Habieb, Ahmad Basshofi; Fitriyah, Dita Kamarul
Jurnal IPTEK Vol 28, No 1 (2024): May
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2024.v28i1.5291

Abstract

Most bridge construction is dominated by steel bridges with various designs and structural types. The choice of steel as a material is due to its known strength, durability, and resistance to damage. However, if maintenance activities on steel bridges are lacking, there is a potential for damage or even failure of the structure. Structural failure can result in economic losses for the country, and more importantly, it can pose a threat to human safety. Therefore, there is a need for monitoring activities to assess the structural health. The development of monitoring activities in the last decade includes the Structural Health Monitoring System (SHMS). To address the challenges of SHMS, various methods are being researched. Non-Destructive Testing (NDT) methods are considered the best choice as an inspection tool, being perceived as easy, and effective in detecting and diagnosing various structural issues. Hence, in research, the detection of damage locations in steel bridge structures is carried out using the Mode Shape Curvature (MSC) method with the assistance of an accelerometer sensor. The MSC method contributes to SHM at level II, specifically in detecting the location of damage in the structure. It is observed that in the designed damage scenarios, the MSC index indicates a loss of stiffness with an increase in the MSC value at the damage location.
Co-Authors Aniendhita Rizki Amalia Basshofi Habieb, Ahmad Cahyono, Achmad Rudy Data Iranata Diputra, Aditya Tamateja Dita Kamarul Fitriyah Habibillah Asyari, Yudhistira Habieb, Ahmad Basshofi Hamluddin, Hamluddin Hidajat Sugihardjo Husin, Nur Ahmad Irawan, Djoko Kumalasari, Aulia Indira Louk Fanggi, Butje Alfonsius Masiran, Hidajat Sugihardjo Meynerd Rafael, Jusuf Wilson Murti, Gandhi Wisnu Hari Nadiva, Annasia Faza Ngakan Ketut Acwin Dwijendra Njoko, Fillbert Prihantono, Gentur Ranti, Sofiah Ridho Bayuaji Rijiyawanto, Adetya Syifaul Ummah, Galih Tori, Ni Wayan Medita Santipa Triwulan Triwulan Yanisfa Septiarsilia Yuyun Tajunnisa