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All Journal Jurnal Teliska Rang Teknik Journal JOMPA ABDI: Jurnal Pengabdian Masyarakat
Wanda Yudha Prawira
Universitas Bina Darma
Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Social Sciences Other

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Journal : Rang Teknik Journal

 1 
PERBANDINGAN PENGGUNAAN AGREGAT TIPE SPLIT DAN KORAL TERHADAP KUAT TEKAN BETON FURNISHED Farlin Rosyad; Aryo Setyaki Syahputra; Wanda Yudha Prawira
Rang Teknik Journal Vol 7, No 1 (2024): Vol. 7 No. 1 Januari 2024
Publisher : Fakultas Teknik Universitas Muhammadiyah Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31869/rtj.v7i1.4736

Abstract

This research aims to investigate the impact of variations in coarse aggregate mixtures on concrete compressive strength and to compare the effects of using split and coral aggregates on the resulting concrete compressive strength. The experiments were conducted at the laboratory of Bina Darma University, Palembang, South Sumatra, using 54 test specimens in the form of 10 x 20 cm cylinders, divided into 27 test specimens for each split and coral aggregate mixture. The research results indicate that a 10% split aggregate mixture has a significant effect on concrete compressive strength, while a 30% coral aggregate mixture also has a substantial impact on concrete compressive strength, with an inverse relationship to the split aggregate mixture. Furthermore, this study achieved optimal concrete compressive strength test results at 28 days of age, with a 10% split aggregate mixture reaching a compressive strength of 61.34 MPa and a 30% coral aggregate mixture reaching a compressive strength of 47.88 MPa.Keywords: Concrete, Variation of Mixture, Compressive Strenght
PENGARUH PENAMBAHAN ABU SERBUK KAYU DAN PASIR BERGRADASI KASAR DALAM MENINGKATKAN KUAT TEKAN PAVING BLOCK Farlin Rosyad; Robbani Rahman; Wanda Yudha Prawira
Rang Teknik Journal Vol 7, No 2 (2024): Vol. 7 No. 2 Juni 2024
Publisher : Fakultas Teknik Universitas Muhammadiyah Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31869/rtj.v7i2.4745

Abstract

At present, paving blocks are widely used as building elements for making building construction, especially for yard pavement, parking lots, and environmental roads. Paving blocks are often used because they have good compressive strength properties, can withstand loads within certain limits, longer plan life, and are easy to install. In addition to these advantages, paving blocks are also better than other pavements in terms of economical maintenance, also in terms of the exterior of a building, and also when viewed in terms of environmental sustainability, as a water absorption system. Sawdust is the material (generally powder) that remains from burning wood. Generally, 6-10% of the mass of wood burned produces ash. From the results of research and discussion in the manufacture of paving blocks with wood dust ash additives planned to increase the compressive strength of paving blocks at the age of 28 days, it was found that the compressive strength of normal paving blocks with 0% wood dust ash was 16.08 MPa, while the compressive strength of paving blocks added with wood dust ash with a composition of 5%, 10%, and 15%, produced a compressive strength of 18.05 MPa; 15.24 MPa; 12.20 MPa;. The effect of sawdust ash on the addition of composition materials in the manufacture of paving blocks can increase the compressive strength of the paving block itself. The compressive strength of paving blocks increases after the addition of sawdust ash from the lowest sawdust ash of 0% to 5% ash only, while paving blocks with 10% and 15% sawdust ash experience a significant decrease in compressive strength value from normal sawdust ash. Keywords: Paving Block, Wood Powder Ash
PENGARUH PENAMBAHAN KAPUR PADA SEMEN GEOPOLIMER TERHADAP MORTAR GEOPOLIMER Ega Maryenttry; Firdaus Firdaus; Wanda Yudha Prawira
Rang Teknik Journal Vol 7, No 1 (2024): Vol. 7 No. 1 Januari 2024
Publisher : Fakultas Teknik Universitas Muhammadiyah Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31869/rtj.v7i1.4753

Abstract

Concrete is widely used to build infrastructure, with the increasing use of cement in Indonesia causing Portland production to increase and have a negative impact on the environment. This is because in the cement production process the combustion results release CO2 which is released directly into the air. Therefore we need another alternative that can replace cement. This study aims to analyze the effect of adding lime to geopolymer cement on geopolymer mortar. From the results of this study, the effect of the addition of lime was very influential on the compressive strength value at the age of 28 days, the addition of lime with a percentage of 1%, 2%, 3%, and 4% in each percentage at the age of the test object 28 days. The highest compressive strength value in the addition of lime was obtained at a percentage of 4% with w/c 0.30 at the age of 28 days with a compressive strength of 1.6 MPa, and in the percentage of using lime the lowest compressive strength could be at a percentage of 1% with a w/c of  0.45 with a compressive strength of 1.2 Mpa.
Co-Authors Ariyadi, Tamsir Aryo Setyaki Syahputra Diah Novita Sari Ega Maryenttry Farlin Rosyad Firdaus Firdaus Nurhajar Anugraha Robbani Rahman