Pengaruh Silica Fume dan Pecahan Batu Marmer Sebagai Bahan Subtitusi Pada Campuran Beton

Julmile, Elli Mercy; Phengkarsa, Frans; Tonapa, Suryanto Rapang

doi:10.52722/pcej.v5i1.588

Cited by 3 publications

(3 citation statements)

References 5 publications

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“…The value of silica fume substitution was highest in the 10% variation, but the strength of concrete decreased if the percentage of silica fume substitution was higher. [7]. The results showed that the use of silica fume and coral shard ash in concrete can have an impact on the strength of concrete.…”

Section: Introductionmentioning

confidence: 95%

Effect of Silica Fume Addition on Mechanical Properties of Concrete in Peat Swamp Water Environment

Buarlele,

Kusuma,

Tiku

2024

ETJ

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Hydraulic Portland cement, water, fine and coarse aggregate, and additional ingredients can be added or left out to create concrete. Making and maintaining concrete requires water as a reagent in the cement mixture so that a chemical reaction occurs when it undergoes the hydration process, which is the process where the cement begins to bind the ingredients that make up the concrete and then hardens and forms a solid mass. The need for water in concrete care is to soak it during the hardening process, however, not all types of water can be used. Peat swamp water is water that collects or flows within the peat swamp ecosystem. Peat swamps are a type of swamp formed from organic material accumulated over thousands of years. Silica fume is a material that contains SiO2 greater than 85% and is a very smooth, round material with a diameter of 1/100 the diameter of cement. The swamp water used in this research was taken from Jl. Rappokalling, Tallo District, Makassar City, South Sulawesi. Mix Design uses the Indonesian National Standard (SNI) 03-2834-2000 method with a planned concrete quality (f'c) of 25 MPa. Compressive strength tests were performed on concrete that was 7 and 28 days old for split tensile strength, and on the 28-day old concrete for modulus of elasticity. The concrete's compressive strength ratings after 28 days in variations of immersion in normal water and peat swamp water are 25,842 MPa and 20,749 MPa. From the test results, it was found that the average split tensile strength value of concrete for variations in normal water immersion and peat swamp water was 2.545 MPa and 1.886 MPa. From the results of the modulus of elasticity test, it was found that the average concrete in normal water immersion and peat swamp water variations was 19893.961 MPa, and 17109.75 MPa.

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Section: Introductionmentioning

confidence: 95%

Effect of Silica Fume Addition on Mechanical Properties of Concrete in Peat Swamp Water Environment

Buarlele,

Kusuma,

Tiku

2024

ETJ

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“…Batuan atau mineral yang termasuk golongan ini, mempunyai sifat-sifat fisik tertentu yang menarik, sehingga dapat digunakan sebagai bahan perhiasan atau dekorasi. Batu mulia digunakan di berbagai industri batu permata, dan sebagai bahan perhiasan atau asesoris/dekorasi (Faizin et al, 2019); (Alfrian et al, 2021); (Debi et al, 2021); (Papendang et al, 2023); (Sarasanty & Zulfika, 2021); (Buli et al, 2022); (Julmile et al, 2023); (Garinas, 2020); (Kabir et al, 2018); (Solechan & Kiswanto, 2018).…”

Section: Pendahuluanunclassified

Eksplorasi Batu Mulia Dengan Metode Pemetaan Geologi Daerah Tuwung Barru

Muh. Darwis Falah,

Muhammad Ansarullah S. Tabbu

2023

IJFAG

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Daerah eksplorasi batu mulia secara administrative terletak di wilayah Lingkungan Kamara, Kelurahan Tuwung, Kecamatan Barru. Secara geografi terletak pada posisi geografis 40 24’ 55” – 40 25’ 17” Lintang Selatan dan 1190 38’ 7,5”- 1190 38’ 27” Bujur Timur dari Greenwich. Kegiatan eksplorasi bahan galian batu mulia di daerah Kamara ditempuh menggunakan metode pemetaan geologi. Pemetaan geologi dilakukan dengan membuat lintasan geologi, untuk memetakan lokasi-lokasi singkapan batu mulia dan gejala-gejala geologi lainnya. Peralatan yang digunakan: pesawat GPS Map 76 S, kompas geologi, palu geologi, lopue, pita ukur, kamera alat tulis-menulis. Batu mulia di daerah eksplorasi secara geologi terbentuk oleh intrusi batuan dasit pada batuan ultrabasa yang mengakibatkan terjadinya silifikasi oleh proses hidrothermal membentuk batu mulia. Sebarannya merupakan rangkaian daerah lembah perbukitan dan lembah sungai, berada pada ketinggian (15 – 175) m dpl, tekstur topografi sedang, wilayahnya sebagian merupakan kawasan hutan, dan sebagian pula merupakan kawasan budidaya dengan vegetasi pepohonan dan semak-belukar. Secara stratigrafi batuannya tersusun dari batuan Ultrabasa dan Dasit serta Endapan Alluvium. Struktur geologinya terdiri atas; sesar, dan kekar. Endapan batu mulia di daerah eksplorasi dijumpai dalam bentuk singkapan dan bongkah dijumpai pada batuan silisifikasi dalam bentuk urat dan bintik-bintik menyebar serta berupa tubuh batuan yang terdiri dari: giok, akik, krisopras, kristal kuarsa, kecubung, zircon, magnetit, opal, kalsedon, peridot, serpentinit, dan Jasfer. Terbentuk secara primer pada batuan ultrabasa dan sekunder pada endapan Alluvium. Batu mulia di daerah eksplorasi terdiri dari: batu permata, batu setengah batu permata, dan batuan hias atau dekorasi. Cadangan endapan batu mulia daerah Kamara mempunyai cadangan geologi terukur adalah 875.000 ton dan cadangan yang dapat ditambang adalah 787.500 ton.. Ratio lapisan penutup 0,04 m3/ton, jika produksi direncanakan 10.000 ton/tahun, dan perolehan penambangan tambang terbuka 90 % maka umur tambang = 78 tahun.

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“…In other studies using marble waste as an ingredient in concrete mixtures has also been developed. According to Elli Mercy Julmile et al [12] That the effect of using silica fume and marble stone fragments as substitution materials in concrete mixtures on split tensile strength, flexural strength of concrete and compressive strength. With a design concrete quality of 25 MPa.…”

Section: Introductionmentioning

confidence: 99%

Utilization of Marble-Cement Powder Modified With Graphite Carbon Particles on Concrete Construction for Buildings in Seaside Areas

Syarif,

Yusri,

Bachtiar

2023

Jurnal Teknologi

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This research aims to utilize marble industrial waste which is not utilized optimally and reduce air pollution as a result of cement production in cement industrial factories which produce a lot of CO2 emissions. The results of this research indicate that the use of 25 % Graphite Carbon Marble Particle Powder, to replace 25 % of the cement volume in making concrete with quality plans K-250 or fc’ 20,75 MPa. The results obtained are higher concrete quality than the quality of each concrete planned for the DCT type = 22,39 MPa > 20,75 MPa, DCL type = 22,76 MPa > 20,75 MPa, WCT type = 22,14 MPa > 20,75 MPa and WCL type = 22,89 MPa > 20,75 MPa. The compressive strength testing process is caried out based on ASTM C 39/C 39M – 05. Meanwhile for workability based on the results of the slump test, a slump value of 12 cm is obtained with the testing process referring to SNI 1972:2008 and ASTM C143/C143M-12.

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Pengaruh Silica Fume dan Pecahan Batu Marmer Sebagai Bahan Subtitusi Pada Campuran Beton

Cited by 3 publications

References 5 publications

Effect of Silica Fume Addition on Mechanical Properties of Concrete in Peat Swamp Water Environment

Effect of Silica Fume Addition on Mechanical Properties of Concrete in Peat Swamp Water Environment

Eksplorasi Batu Mulia Dengan Metode Pemetaan Geologi Daerah Tuwung Barru

Utilization of Marble-Cement Powder Modified With Graphite Carbon Particles on Concrete Construction for Buildings in Seaside Areas

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