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Imam Akbar
Universitas Tridinanti Palembang
Automotive Engineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Pengaruh Penambahan Serat Polypropylene Serta Super Plasticizer Terhadap Kuat Tekan Dan Tarik Belah Beton Hariman Al Faritzie; Indra Syahrul Fuad; Imam Akbar
Jurnal Deformasi Vol. 8 No. 1 (2023): JURNAL DEFORMASI
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/deformasi.v8i1.11576

Abstract

Beton merupakan material yang paling banyak digunakan dalam bangunan konstruksi. Beton adalah campuran semen, agregat halus, agregat kasar, dan air, serta dapat ditambah bahan tambah lain dengan perbandingan tertentu. Penelitian ini menggunakan bahan dengan potongan serat polypropylene serta super plasticizer sebagai bahan tambah campuran beton terhadap kuat tekan dan tarik belah beton. Benda uji berupa silinder dengan variasi normal dan serat polypropylene 0,25%, 0,50%, 0,75% serta super plasticizer 1%, 2%, 3% dengan umur perawatan 7, 14, 21, 28 hari. Hasil penelitian pada variasi campuran serat polypropylene 0,25% + 1% super plasticizer hasil kuat tekan 32,03 MPa. Pada campuran serat polypropylene 0,25% + 2% super plasticizer hasil kuat tekan sebesar 33,08 MPa. Pada variasi campuran serat polypropylene 0,25% + 3% super plasticizer sebesar 35,87 MPa. Campuran serat polypropylene 0,50% + 1% super plasticizer sebesar 32,51 MPa. campuran serat polypropylene 0,50% + 2% super plasticizer kuat tekan 35,87 MPa. dan pada  campuran serat polypropylene 0,50% + 3% super plasticizer hasil kuat tekan sebesar 37,32 MPa. Pada campuran serat polypropylene lebih dari 50% mengalami penurunan kuat tekan, dimana pada campuran serat polypropylene 0,75% + 1% super plasticizer hasil kuat tekannya 25.87 MPa. Pada campuran serat polypropylene 0,75% + 2% super plasticizer sebesar 27,79 MPa. Dan pada campuran serat polypropylene 0,75% + 3% super plasticizer sebesar 29,43 MPa
THE EFFECT OF DIFFERENT STRUCTURE AND GRADIENT INFILL ON MECHANICAL BEHAVIOR POLYLACTIDE ACID MATERIALS (PLA) Imam Akbar; M Rizky Hidayat; Dewi Rawani; Rita Maria Veranika; Hariman Al-Faritzie; Romli Romli
AUSTENIT Vol. 15 No. 1 (2023): AUSTENIT: April 2023
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/austenit.v15i1.6631

Abstract

The purpose of this study is to analyze the effect of our gradient infill on the mechanical behavior of polylactide acid (PLA) materials resulting from 3d printing, which has an impact on the efficiency of material use while still providing good mechanical support. In this study, the specimens were designed using nTopology software and there were 4 variations of the structure, namely square, honeycomb, diamond, and gyroid, each of which was made gradient and non-gradient, then a bending test was carried out to determine its mechanical behavior thats PLA materials. The results of this study indicate that a comparison between specimens with gradient and non-gradient models with 50% porosity can increase the deflection of the specimen, namely square 15.7-19.1 mm, honeycomb 16.3-20.6 mm, Diamond 19.7-21.8 mm, and gyroid 20.3-22.1 mm, with an average deflection of 2.04 mm. In addition, there is a linear correlation of the relationship between thickness to deflection and flexural modulus whereas the thickness value increases, the deflection and flexural modulus will increase. The conclusion of this research is that giving a gradient to the structure can improve mechanical behavior, especially deflection.
Co-Authors Dewi Rawani Fuad, Indra Syahrul Hariman Al Faritzie M Rizky Hidayat Rita Maria Veranika Romli Romli