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All Journal REKA RACANA Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil BANGUN REKAPRIMA JITTER (Jurnal Ilmiah Teknologi Informasi Terapan) J-Dinamika: Jurnal Pengabdian Kepada Masyarakat Jurnal Ilmiah Rekayasa Sipil Prokons: Jurnal Teknik Sipil Construction and Material Journal JURNAL POLI-TEKNOLOGI Journal of Applied Civil and Environmental Engineering (JACEE)
Anni Susilowati
Politeknik Negeri Jakarta
Aerospace Engineering Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation Other

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Journal : REKA RACANA

 1 
Pengaruh Penambahan RD 31 pada Beton dengan Substitusi Ground Granulated Blast Furnance Slag Anni Susilowati; Serin Ginting
RekaRacana: Jurnal Teknil Sipil Vol 6, No 3: November 2020
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/rekaracana.v6i3.191

Abstract

ABSTRAKJauhnya lokasi batching plant dengan tempat penuangan kerapkali membuat beton setting sehingga dibutuhkan bahan tambah retarder. Ground Granulated Blast Furnace Slag (GGBFS) memiliki komposisi kimia mirip semen. Oleh karena itu, dilakukan penelitian penambahan retarder pada beton dengan substitusi GGBFS sebagai pengganti sebagian semen untuk mengetahui pengaruh (dengan uji regresi SPSS),  sifat  fisik  dan  mekanik  beton,  serta  mendapatkan kadar  optimum penambahan retarder. Metode penelitian ini menggunakan metode eksperimental dengan variasi campuran 90% semen, 10% GGBFS dengan retarder 0%, 0,2%, 0,4%, dan 0,6% berat semen dengan fas 0,5 sesuai SNI 03-2834-2000. Hasil penelitian menunjukkan retarder 0,2% - 0,6% mampu meningkatkan kuat tekan sebesar 19,61 - 50,59%. Berdasarkan hasil penelitian diperoleh kadar optimum 0,2% karena memiliki sifat paling baik.Kata kunci: GGBFS, kuat tekan, retarder ABSTRACTLong distance between batching plant to the pouring area often causes the concrete undergo a setting, so that a retarder addition material is needed. Ground Granulated Blast Furnace Slag (GGBFS) which has a chemical composition similar to cement. Therefore, a research was conducted on retarder addition to concrete with GGBFS substitution as a partial cement substitute to obtain the effect (regression analysis method in SPSS), physical and mechanical properties of concrete, and to obtain the optimum level of retarder addition. This research used an experimental method with a mixture variation of 90% cement, 10% GGBFS with retarder percentage as follows; 0%, 0.2%, 0.4%, and 0.6% of cement weight with a water/cement is 0.5 according to SNI 03-2834-2000. The results of research with the addition of a retarder of 0.2% - 0.6% were able to increase the compressive strength by 19.61 - 50.59%. Based on the results, the optimum level of retarder is at a variation of 0.2% as it has the best physical and mechanical properties.Keywords: GGBFS, compressive strength, retarder
Pengaruh Variasi Bottom Ash terhadap Sifat Fisik dan Sifat Mekanik pada Mortar Semen Anni Susilowati; Tsana Oktaviana
RekaRacana: Jurnal Teknil Sipil Vol 7, No 3: November 2021
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/rekaracana.v7i3.139

Abstract

ABSTRAKPenggunaan batu bara untuk pembangkit listrik semakin meningkat mengakibatkan menumpuknya limbah bottom ash yang berbahaya untuk lingkungan sekitar. Penelitian ini bertujuan untuk menganalisa pengaruh campuran bottom ash terhadap sifat fisik dan mekanik mortar semen. Metode penelitian yang digunakan adalah metode eksperimental dengan perbandingan campuran yaitu 1PC: 3PS dan  variasi bottom ash sebesar 0%,20%,40%,60%,80% terhadap berat pasir. Hasil analisis menunjukkan penggunaan bottom ash menurunkan nilai konsistensi sebesar 1,82% sampai dengan 45,45% dibandingkan tanpa penggunaan bottom ash. Penggunaan bottom ash 20% mampu meningkatkan kuat tekan sebesar 50% dan kuat lentur sebesar 28,3% pada umur 28 hari dibandingkan mortar semen tanpa bottom ash. Mortar semen termasuk mortar tipe S sesuai SNI 03-6882-2002.Kata kunci: abu dasar, mortar semen, pengganti agregat halus ABSTRACTThe increasing use of coal for power generation results in the accumulation of bottom ash waste which is harmful to the surrounding environment. This study aims to analyze the effect of bottom ash mixture on the physical and mechanical properties of cement mortar. The research method used is an experimental method with a mixture ratio of 1PC: 3PS and bottom ash variations of 0%,20%,40%,60%,80% by weight of sand. The results of the analysis show that the use of bottom ash reduces the consistency value by 1.82% to 45.45% compared to without the use of bottom ash. The use of bottom ash 20% was able to increase the compressive strength by 50% and flexural strength by 28.3% at the age of 28 days compared to cement mortar without bottom ash. Cement mortar including type S mortar according to SNI 03-6882-2002.Keywords: bottom ash, cement mortar, substitute for fine aggregate
Pemanfaatan Fly Ash Sebagai Substitusi Sebagian Semen pada Papan Serat Ringan Susilowati, Anni; Satria, Kevin Muhammad; Pratikto, Pratikto
RekaRacana: Jurnal Teknik Sipil Vol 10, No 2: Juli 2024
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/rekaracana.v10i2.82

Abstract

ABSTRAKPapan serat ringan merupakan papan yang berasal dari pengolahan mortar yang terdiri dari campuran semen, pasir, air, foam, dan fly ash. Fly ash memiliki kandungan silica dan alumina yang mencapai 80%, dimana kandungan tersebut merupakan kandungan yang terdapat juga pada semen, sehingga fly ash dapat menjadi material alternatif sebagai pengganti semen. Penelitian dilakukan dengan menggunakan acuan pengujian sifat fisik dan mekanik berdasarkan SNI 15-0233-1989 dan SNI 01-4449-2006. Variasi yang digunakan adalah 0,6 – 1 PC: 0,1 – 0,4 fly ash: 1,2 Pasir: FAS 0,233 dengan ditambahkan serat gelas sebanyak 4 lapis serta ditambahkan foam agent guna menciptakan mortar busa dengan perbandingan mortar dan foam agent adalah 0,45: 0,55. Hasil analisis menunjukan penggunaan fly ash menurunkan nilai kerapatan dan berat jenis papan serat ringan. Didapatkan papan serat ringan yang memiliki kemampuan dipaku yang baik serta nilai kuat lentur optimum didapatkan pada variasi 10% fly ash dengan nilai sebesar 67,19 kg/cm².Kata kunci: fly ash, mortar busa, papan serat ringan, serat gelas ABSTRACKLightweight fiberboard is a board derived from mortar processing, consisting of a mixture of cement, sand, water, foam, and fly ash. Fly ash contains a silica and alumina content of up to 80%, which is also present in cement, making fly ash a potential alternative material to replace cement. The research uses reference tests for physical and mechanical properties based on SNI 15-0233-1989 and SNI 01-4449-2006. The variations used are 0.6 – 1 PC: 0.1 – 0.4 fly ash: 1.2 Sand: FAS 0.233, with the addition of 4 layers of glass fibers and foam agent to create foam mortar with a mortar to foam agent ratio of 0.45: 0.55. The analysis results show that the use of fly ash decreases the density value and specific gravity of the light fiberboard. A lightweight fiberboard with good nail-holding capability is obtained, and the optimum flexural strength value is achieved at the 10% fly ash variation with a value of 67.19 kg/cm².Keywords: fly ash, foam mortar, lightweight fiberboard, fiberglass 
Co-Authors Ananda Chaerul Imam Dennis Yudha Praditya Diana Putri Eko Wiyono Eko Wiyono Eko Wiyono Eko Wiyono Fawwaz Nabhan Gym Wijaya, Abdira Hakim, Haudiah HERI SUSANTO Imron Tsaluji Iqbal Yusra Irfan Oktariadi Oktariadi Kusno Wijayanto Mochammad Sholeh Muhammad Andika Ghifary Praktiko, Praktiko Pratikto Pratikto Pratikto Pratikto Pratikto Pratikto _ Raden Bagus Anggietantyo Akiranda Rizal, Rikki Sofyan Rudolf Triamba Prasetyo Satria, Kevin Muhammad Serin Ginting Tsana Oktaviana Yelvi